Journal articles on the topic 'Dynamic multimodal texts'
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Francesconi, Sabrina. "Dynamic intersemiosis as a humour-enacting trigger in a tourist video." Visual Communication 16, no. 4 (September 26, 2017): 395–425. http://dx.doi.org/10.1177/1470357217716378.
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This article seeks to explore the use of multiple semiotic resources in a multimodal text, namely a YouTube video on the Hans Brinker Budget Hotel in Amsterdam. More specifically, it observes how dynamic intersemiosis is adopted for humorous meaning-making and with an ultimate promotional function. First, it is here claimed that dynamic intersemiosis acts as the humour-enacting trigger enabling script shift, i.e. the semantic process of frame reversal inherent in humour generation. Then, multimodally expressed humour is discussed as performing a parody of similar tourism and eco-tourism texts and of the specialized language they adopt. The questions raised are: How do dynamic images and the soundscape combine in terms of congruence and dissonance? How does intersemiosis act as a humour-enacting trigger in the multimodal artefact? How does multimodally expressed humour position the Hans Brinker Hotel within a tourism discourse? How and why is the parody of promotional (eco)-tourism videos realized?
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Caple, Helen, Monika Bednarek, and Laurence Anthony. "Using Kaleidographic to visualize multimodal relations within and across texts." Visual Communication 17, no. 4 (July 19, 2018): 461–74. http://dx.doi.org/10.1177/1470357218789287.
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Kaleidographic is a dynamic and interactive data visualization tool that allows users to observe and explore relations between any number of variables. It was developed in reaction to the problem of capturing the complex ways in which words and images combine to make meaning. This article introduces the Kaleidographic tool through a case study examining the multimodal construction of news values in news items widely shared on the Facebook social media platform. The design and functionality of the tool are explained in relation to the challenges faced when exploring both the visual and verbal elements of these news items as part of a multimodal discourse analysis. Through this case study, the authors show that Kaleidographic offers multimodal researchers a means of exploring relations at the intersection of different semiotic modes that might be missed in static graphs and tables. Despite Kaleidographic being initially conceived out of the analysis of text–image relations, the case study demonstrates that it has potential applications beyond multimodal discourse analysis. To facilitate broader applications of the tool, it is now publicly available online for use without charge.
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Skains, R. Lyle. "The materiality of the intangible: Literary metaphor in multimodal texts." Convergence: The International Journal of Research into New Media Technologies 25, no. 1 (April 21, 2017): 133–47. http://dx.doi.org/10.1177/1354856517703965.
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Based on a larger practice-based research project in digital writing, this article examines how the materiality of digital media contributes to a layered metaphor that delivers meaning, reflects on the cognitive processes (the writer’s and the reader’s) of navigation and generates a dynamic narrative structure through multimodality, unnatural narration and user interaction. Many writers and artists engage with their chosen medium through an instinctive understanding of the materials at hand, gained through experience; the explicit study of a medium’s materiality is not always required for artistic success, however, that may be judged. This article offers insights into the creative process of creating digital, multimodal fiction, based on a practice-based research project designed to explore the effects of digital media on author and text, and argues that digital media have a significant effect on the outcome of the artefact itself. Awareness of these effects, their variations according to hardware and software, and the affordances of these various materials offer the digital writer greater insight and capability to craft his/her texts for the desired metaphorical meaning.
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Pekūnas, Žygimantas. "Text as Image: A Case Study of the Lithuanian Translation of Art Spiegelman’s Graphic Novel MAUS." Vertimo studijos 12 (December 20, 2019): 99–115. http://dx.doi.org/10.15388/vertstud.2019.7.
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This article contributes to the multimodal investigation of comics translation, a highly semiotic activity. The author discusses the visual representation of the text as an image through a case study of the Lithuanian translation of Art Spiegelman’s graphic novel MAUS (translated into Lithuanian by Juškienė and Lempert, 2012). While viewing multimodality as a translation tool and a challenging area, he claims that the visual representation of the text is an integral part of the original multimodal event, whereby the meaning is conveyed through an intrinsic relationship between verbal and non-verbal elements, and that any distortion of those would result in alterations or losses in meaning. The results demonstrated that indeed even the smallest alterations of the visual representation of the text produced shifts in meaning; most of those shifts were pragmatic ambiguities, however, in certain instances there was a loss of semantic emphasis or narrative production. Comics translators and publishers are thus urged to fully comprehend the very dynamic and complex nature of multimodal texts and make every effort to ensure that translation would not result in any multimodal disruptions, if such preservation is technologically available.
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Evgrafova, Yulia A. "Trope as the Result of Semiotic Interpolation of Verbal and Non-verbal Units in Heterogeneous Text(Case Study of Film Text “Faust” by A. Sokurov)." RUDN Journal of Language Studies, Semiotics and Semantics 11, no. 2 (December 15, 2020): 341–56. http://dx.doi.org/10.22363/2313-2299-2020-11-2-341-356.
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Homogeneous texts are being replaced by heterogeneous texts that are called audio-visual ones; texts and teletexts belong to the most formed of them. On the ground of cinema and television the texts with the unique structure that combines verbal and non-verbal sense carriers apoeared. The aim of this work is to describe peculiarities of meaning articulation in the dynamic scope of such screen texts. To reach the aim the task to show how the basic elements of the screen “language” materialize in verbal and non-verbal units of the screen “speech” of polycode-multimodal text and how it constructs the general meaning of audio-visual narration is set. Also contamination of levels of meaning is being studied in this work and how it influences the trope. The research is being held on the case of the film text “Faust” by A. Sokurov. The analysis is being done on the space-time continuum, i.e. with the consideration of the movement in the film text. Units of the screen “speech” are being extracted from the chosen segments and analysed as the main sources of the meaning of audio-visual message as a whole; also the peculiarities of the meaning articulation on the denotational and connotational levels in space-time scope of polycode-multimodal text are being described. Apart from that, the process of semiotic interpolation of verbal and non-verbal units that leads to the generating of the transitional meaning and of the trope on the grounds of displacement and adjacency of the meanings is being studied. The author comes to the conclusion that integrity of verbal and non-verbal units in the space-time scope of the polycode-multimodal text, that results in trope generation, also leads to the semiotic situation of simulacrativity, whose main goal is to make the spectator believe that what is happening on the screen is real. This article is aimed at students, post-graduates, professors, linguists and others interested in general and linguistic semiotics.
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Evgrafova, Y. A., and O. I. Maksimenko. "SIMULACRUM IN STATIC-DYNAMIC SCOPE OF THE SCREEN (a case study of polycode-multimodal texts of the Internet)." RUDN Journal of Language Studies, Semiotics and Semantics 9, no. 4 (2018): 831–41. http://dx.doi.org/10.22363/2313-2299-2018-9-4-831-841.
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Shi, Dan, and Paul J. Thibault. "Languaging dynamics of classroom interactivity: a distributed view of the pedagogic recontextualization in L2 tertiary settings." Semiotica 2022, no. 245 (February 4, 2022): 125–55. http://dx.doi.org/10.1515/sem-2020-0096.
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Abstract The current study investigates classroom interactivity in L2 tertiary literature classrooms in Hong Kong and Taiwan when ESL/EFL students engage with and interpret literary texts in classroom talk as a pedagogic process of text recontextualization. It proposes a more ecological-based approach to language and languaging dynamics that is complementary to current social semiotic approaches to multimodality. It also aims to open up a more embodied analysis of the meaning-making process in tertiary literature classrooms. The multimodal investigation of real-time classroom interactivity based on a multi-scalar approach showcases an embodied coordination of vocalization and gesticulation as integral aspects of the dynamic whole-body sense-making activity that arises in the pedagogic process of text recontextualization. The dynamics vary from students’ solo speech in individual presentation to teacher–student interactions in group discussion and to student–student interactions in role-play. The distributed language view of first-order languaging dynamics demonstrates the embodied and distributed dimensions of the real-time classroom interactivity that couples pedagogic subjects to the affordances of their pedagogic environment. It also provides insights into the impact of pedagogic activities on the multi-scalar dynamics of the meaning-making process with reference to embodied speech–gesture coordination. The paper demonstrates the value of applying an ecologically embodied perspective to multimodal studies in classroom research and stimulates a re-thinking of some of the important aspects of classroom interactivity that have received little attention thus far.
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Brown, Penny. "Manga Shakespeare and Cervantes: Trash or Reclamation?" Comparative Critical Studies 14, no. 2-3 (October 2017): 155–67. http://dx.doi.org/10.3366/ccs.2017.0233.
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This paper considers the merit of manga versions of Shakespeare's Hamlet and Cervantes' Don Quijote de la Mancha which employ the impressionistic techniques of the Japanese comic format to create new, dynamic texts. Such multimodal texts demand different verbal and visual skills to decode the synergy between word and image and elements like the page layout, the size and shape of images and speech balloons and the style of lettering. Far from debasing the cultural authority of the originals by blurring the boundaries between high and popular culture, these versions can be seen as an act of salvage of the original texts from the perceived difficulties of challenging language and content, reinvigorating them with a vibrant immediacy. By making demands on the imagination and intellect in exciting ways, they may also salvage the act of reading itself by encouraging a young or reluctant readership, as well as the already enthusiastic, to explore new ways of engaging with a text.
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Caple, Helen, Laurence Anthony, and Monika Bednarek. "Kaleidographic." International Journal of Corpus Linguistics 24, no. 2 (August 5, 2019): 245–61. http://dx.doi.org/10.1075/ijcl.18038.cap.
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Abstract Kaleidographic is a dynamic and interactive data visualization tool that allows users to observe and explore relations between any number of variables. The tool is useful for displaying the complex ways in which textual elements interact across a range of texts. Thus far, the tool has been used to display the results of corpus studies as well as corpus-assisted multimodal discourse analyses that investigate text-image relations. To facilitate broader applications of the tool, it is now publicly available online for use without charge. This paper explains the background and motivation for Kaleidographic and presents two case studies demonstrating its utility. Limitations of the tool are discussed and its potential uses in corpus linguistics research and beyond are introduced.
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Kudła, Marcin. "A Multimodal View of Late Medieval Rhetoric: The Case of the White Rose of York." Studies in Logic, Grammar and Rhetoric 61, no. 1 (March 1, 2020): 127–45. http://dx.doi.org/10.2478/slgr-2020-0007.
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AbstractThe aim of the present paper is to contribute to a better understanding of the role of heraldry, in particular of para-heraldic devices known as “badges”, in 15th-century England. The case chosen for examination is that of the white rose, one of the major badges of Edward IV.The data consists of four contemporary texts in which Edward is referred to as the “rose”, analysed against the background of the use of the white rose of York as a heraldic device. This includes surviving artefacts ranging from effigies to stained glass to seals and manuscript illuminations, as well as contemporary descriptions and depictions of those artefacts.Using the methodological apparatus of cognitive linguistics, specifically the multimodal metaphor and metonymy analysis, the author examines the interplay between language and heraldry. The results show that while the primary function of the white rose and of other badges employed by Edward IV was to emphasize his heritage and thus invite a metonymic reading, the badge inspired other, metaphorical readings, which were employed rhetorically by his supporters. In this context, the concept of the badge may be reinterpreted as a metaphtonymy.The analysis supports the view of heraldry as an integral element of medieval society. From a semiotic perspective, heraldry should be seen as a dynamic system that could be exploited creatively to suit the needs of its users, which in turn corresponds to the dynamic theory of metaphor.
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Nikishin, V. D. "OBJECTS OF FORENSIC LINGUISTIC EXAMINATION: NEW CHALLENGES OF CRIMINOGENIC INTERNET COMMUNICATION." Courier of Kutafin Moscow State Law University (MSAL)), no. 6 (July 31, 2020): 79–88. http://dx.doi.org/10.17803/2311-5998.2020.70.6.079-088.
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The article is devoted to the system of objects of forensic linguistic examination at the present stage of its development. The relevance of the study is tied with the activation of criminogenic Internet communication, which implements defamatory, extremist and other aggressive speech acts that create threats to the information and worldview security of Web users. The essence of the object of forensic linguistic examination is considered from the following points of view: the theory of confl ict, the criminalistic understanding of the object of forensic examination as a complex three-link dynamic system, the concept of speech traces, the language form of the speech products, the material storage mediums, etc. Defi nitions of the diagnosed and diagnosing objects of the forensic linguistic examination are proposed. The article focuses on creolized and multicode texts, their multimodal perception. The correlation of speech traces of criminogenic Internet communication and digital traces is considered.
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Yefymenko, Victoria. "COMICS AS A TRANSMEDIAL PHENOMENON: FROM A PRINTED TO A DIGITAL MEDIUM." Folia linguistica et litteraria XII, no. 35 (2021): 159–74. http://dx.doi.org/10.31902/fll.35.2021.8.
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Comics have recently attracted the increased attention of theorists as a very dynamic and fast-growing genre. A characteristic feature of contemporary comics is their transmediality, i.e., exceeding the boundaries of the printed page and transforming to digital narratives. Transition to a digital medium gives a number of advantages, including the possibility of using different display modes, deeper immersion in the fictional world, greater degree of interactivity. This paper examines comics, which are adaptations of the classic fairy tale Little Red Riding Hood, identifies intertextual references and modifications of the comics versions. Intertextual references can be traced at the level of comics titles, names of the characters and their characteristics, semi-quotes, which paraphrase the original texts, besides, comics have a different temporal and spatial setting, they extend the scope of the storyworld. Particular attention has been paid to the page layout, such comics-specific features as panels, frames, speech balloons, speed lines, emanata, and onomatopoeic words. Print and digital comics are analysed using narratological and multimodal approaches. The analysis includes such narratological issues as narratorial and nonnarratorial strategies of representation, the temporal and spatial structure of a narrative, internal and external focalisation, as well as focalisation-marking devices (the eyeline match, the over-the-shoulder shot, the high-angle shot). A comic is a multimodal narrative, combining several modes, mainly visual and verbal. The aural mode is represented in comics by linguistic and visual signs, e.g., jagged borders of a speech balloon or the size and boldness of letters. Special attention has been given to the interaction between visual and verbal modes, in particular to the text-image relations. Our analysis has identified such types of the text-image relations as specification, exemplification, and enhancement. Comics have recently attracted the increased attention of theorists as a very dynamic and fast-growing genre. A characteristic feature of contemporary comics is their transmediality, i.e. exceeding the boundaries of the printed page and transforming to digital narratives. Transition to a digital medium gives a number of advantages, including the possibility of using different display modes, deeper immersion in the fictional world, greater degree of interactivity. This paper examines comics, which are adaptations of the classic fairy tale Little Red Riding Hood, identifies intertextual references and modifications of the comics versions. Intertextual references can be traced at the level of comics titles, names of the characters and their characteristics, semi-quotes, which paraphrase the original texts, besides, comics have a different temporal and spatial setting, they extend the scope of the storyworld. Particular attention has been paid to the page layout, such comics-specific features as panels, frames, speech balloons, speed lines, emanata, and onomatopoeic words. Print and digital comics are analysed using narratological and multimodal approaches. The analysis includes such narratological issues as narratorial and nonnarratorial strategies of representation, the temporal and spatial structure of a narrative, internal and external focalisation, as well as focalisation-marking devices (the eyeline match, the over-the-shoulder shot, the high-angle shot). A comic is a multimodal narrative, combining several modes, mainly visual and verbal. The aural mode is represented in comics by linguistic and visual signs, e.g., jagged borders of a speech balloon or the size and boldness of letters. Special attention has been given to the interaction between visual and verbal modes, in particular to the text-image relations. Our analysis has identified such types of the text-image relations as specification, exemplification, and enhancement.
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LaFave, Andrew L., and Elizabeth A. Mainz. "Engaging with the syuzhet: A new methodological approach to analyzing and visualizing internet discourse." Ethnography 19, no. 2 (August 16, 2017): 183–203. http://dx.doi.org/10.1177/1466138117725339.
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The dynamic nature of written communication using the internet has provided the ethnographic community with a rich source of data to sample and analyze. While the past century has seen considerable development in methodological approaches to sampling and analyzing texts written with ink on paper, the constantly evolving textual landscape of the internet has yet to be fully understood. In this paper, we advocate a new approach to internet texts where researchers move beyond the ‘ink and paper’ paradigm and embrace the internet as a medium unto itself. To do this, we engage with the narrative concept of fabula and syuzhet as pioneered by Russian Formalists Viktor Schklovsky and Vladimir Propp. We offer an innovative approach to interpretive, internet-based digital ethnography that will help scholars develop multimodal timelines which account for both the linear unfolding of significant temporal events and the non-linear unfolding of meaning-making that key actors in those events generate. Our new approach to timelining in digital ethnography allows researchers to follow and catalog each author’s unique set of links as they interact with other authors and socially construct a shared understanding of events. The method we have outlined here engages the intertextual potential of the internet as a way of seeing, linking online spaces to the ethnographic community’s longstanding interest in modes of communication that capture the lived experiences of people.
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Norledge, Jessica. "Building The Ark: Text World Theory and the evolution of dystopian epistolary." Language and Literature: International Journal of Stylistics 29, no. 1 (January 16, 2020): 3–21. http://dx.doi.org/10.1177/0963947019898379.
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Told through a series of interrelated documents (including emails, text messages, newspaper clippings and blog posts), Annabel Smith’s interactive digital novel The Ark epitomises the contemporary hybridity of the dystopian genre. Designed to be fully immersive, the story can be engaged with across media, enabling readers to ‘dive deeper into the world of the novel’ and challenge how they experience dystopian texts. Taking a Text World Theory perspective, I examine the implications of this challenge, investigating the impact of transmedial storytelling on world-building and exploring the creative evolution of dystopian epistolary more broadly. In analysing both the ebook element of The Ark and certain facets of its companion pieces (which take the form of a dynamic website and a smartphone app), I investigate the creation of the novel’s text-worlds, considering the process of multimodal meaning construction, examining the conceptual intricacies of the epistolary form and exploring the influence of paratextual matter on world-building and construal. In doing so, I offer new insights into the conceptualisation of ‘empty text-worlds’, extend Gibbons’ discussions of transmedial world-creation and argue for a more nuanced understanding of dystopian epistolary as framed within Text World Theory.
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Dybiec-Gajer, Joanna. "Książka obrazkowa jako przekład intersemiotyczny – "Król Maciuś Pierwszy" w obrazach Iwony Chmielewskiej." ANNALES UNIVERSITATIS PAEDAGOGICAE CRACOVIENSIS. STUDIA LINGUISTICA, no. 17 (December 2, 2022): 43–63. http://dx.doi.org/10.24917/20831765.17.3.
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A picturebook as an intersemiotic translation of a source text involves a complex process of negotiating and generating meaning by interpretation, selection and mediation. When there is a considerable time gap between the first publication of the source text and its translation into a new visual modality, additional concerns appear that further complicate the process. To what extent is modernization recommended or needed? How does the unfolding of social practices and historical change affect the generation of meanings? What are the illustrator’s loyalties? The dynamic development of multimodal (polysemiotic) texts leads to the reinterpretation and expansion of Jakobson’s classic category of intersemiotic translation. It is used in the study of visual literature, which raises methodological questions as to whether book illustrating is a translational activity. Today intersemiotic translation seems much closer to adaptation or “resemiotization” (O’Halloran et al. 2016) than to interlingual translation proper. Thus the study of discrepancies, shifts and changes, rather than the pursuit of equivalence, may offer new insights. A case in point is the artistic picturebook Jak ciężko być królem [How Hard It Is to Be a King] (2018) by Iwona Chmielewska, who provides a contemporary visual interpretation of the almost century-old King Matt the First (Król Maciuś Pierwszy) (1923). Written by a Polish-Jewish pedagogue, educator and writer, Janusz Korczak’s poignant and multilayered novel about a child king is a recognizable children’s classic with four English translations available. Drawing on desrciptive translation studies, the aim of the article is to analyze the picturebook at hand as an intersemiotic translation, mapped against the existing translation series. What are its translational and pictorial dominant features? What characterizes the artist’s multimodal strategies in representing the source text? How is the unsettling or ambiguous content mediated? Last but not least, the articles focuses on interdiscursivity to inquire how the societal and institutional context as well as the discourse of memory surrounding Janusz Korczak’s death in the Holocaust affect the meaning and where and how they ‘place’ the author and his child hero.
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Klym, Halyna, and Roman Dіachok. "DYNAMIC SEARCH FOR ERRORS IN INDUSTRIAL INTERNET PROTOCOLS FOR APPLICATION IN MULTISENSOR CONTROL SYSTEMS." Computer systems and information technologies, no. 3 (September 28, 2022): 65–74. http://dx.doi.org/10.31891/csit-2022-3-9.
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Based on the considered theory of dynamic damage analysis of industrial Internet protocols and determination of the necessary data of dynamic multimodal communication of the sensor, the method of fuzzy tests in combination with dynamic multimodal data transmission for jamming in multisensor control systems is proposed. The proposed method traces program execution, finds input fields affecting conditional branches through dynamic damage analysis, and captures the dependency of conditional branches to appropriately control test case grammar generation, increasing deep-level code execution. The results of the comparative experiment confirm that the method to some extent improves the validity of test cases and the speed of code coverage, as well as increases the probability of detecting anomalies in the implementation of the protocol.
To evaluate multi-sensor computerized systems from the point of view of "fuzzy intelligence", studies were conducted to solve the problem of low code coverage caused by repeated execution of test sequences on the same path, starting from the system program level in the implementation of industrial Internet protocols and the prerequisite of obtaining affordable weekends program codes, or an executable binary file. The paper proposes a method that is combined with dynamic multimodal transmission of sensor data in a fuzzy processing program. It provides program execution, protocol implementation, finds input fields that affect conditional branches using dynamic inconsistency analysis, and captures dependency relationships between conditional branches to control test generation.
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Cheng, Lijing, and Jiang Zhu. "Benefits of CMIP5 Multimodel Ensemble in Reconstructing Historical Ocean Subsurface Temperature Variations." Journal of Climate 29, no. 15 (July 11, 2016): 5393–416. http://dx.doi.org/10.1175/jcli-d-15-0730.1.
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Abstract A complete map of the ocean subsurface temperature is essential for monitoring aspects of climate change such as the ocean heat content (OHC) and sea level changes and for understanding the dynamics of the ocean/climate variation. However, global observations have not been available in the past, so a mapping strategy is required to fill the data gaps. In this study, an advanced mapping method is proposed to reconstruct the historical ocean subsurface (0–700 m) temperature field from 1940 to 2014 by using ensemble optimal interpolation with a dynamic ensemble (EnOI-DE) approach and a multimodel ensemble of phase 5 of the Coupled Model Intercomparison Project (CMIP5) historical and representative concentration pathway 4.5 simulations. The reconstructed field is a combination of two parts: a first guess provided by the ensemble mean of CMIP5 models and an adjustment by minimizing the analysis error with the assistance of error covariance determined by the CMIP5 models. The uncertainty of the field can also be assessed. This new approach was evaluated using a series of tests, including subsample tests by using data from the Argo period, idealized tests by specifying a truth field from the models, and withdrawn-data tests by removing 20% of the observations for validation. In addition, the authors showed that the ocean mean state, long-term trends, and interannual and decadal variability are all well represented. Furthermore, the most significant benefit of this method is to provide an improved estimate of the long-term historical OHC changes since 1940, which have important implications for Earth’s energy budget.
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Solmaz, Osman. "The Role of a Writing Center in Academic Writing Socialization of Second Language Graduate Students." Acta Educationis Generalis 11, no. 3 (December 1, 2021): 1–22. http://dx.doi.org/10.2478/atd-2021-0018.
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Abstract Introduction: The present study aims to investigate second language graduate students’ academic writing socialization in relation to their experiences at writing center in North American higher educational context. The study documents how graduate students are socialized to use academic language in order to participate effectively within their academic communities by employing Weidman, Twale, and Stein’s (2001) framework for Graduate and Professional Student Socialization. Methods: The data is collected through semi-structured interviews with five graduate students who had experience visiting writing center to receive support for their academic writing. The data was analyzed based on the tenets of thematic analysis, which followed an iterative process. Results: It was revealed that second language graduate students’ reasons for visiting the Campus Writing Center included their educational background, field of study, and their first language(s). It was also shown that all participants expected revision on their grammatical errors as well as feedback on global areas such as idea development and organization during their visits. Furthermore, the analysis indicated that the participants gained both positive and negative experiences from the tutoring sessions, while it was found that writing center was not the only resource our participants relied on for the development of their academic writing. Discussion: There are various factors influencing and contributing to second language graduate students’ development of writing socialization within academic community. It is a challenging task for students from other educational and cultural backgrounds to adapt and socialize into new environments, especially in the academic community of higher education. Therefore, the support from writing service and writing development programs/workshops that are tailored to the specific needs of second language graduate students would be one helpful resource to help them go smoothly through the process of second language academic writing socialization. Given that second language graduate students generally benefited from a strong supervision and supportive feedback, and appreciated them as reported in the literature, it is also important to survey international students’ academic enculturation experiences periodically in terms of areas such as writing, speaking and participation in scholarly activities, faculty mentorship and offer feedback-support to overcome issues reported by students. Limitations: The number of participants and the lack of students’ academic text investigation were noted as limitations of the study. It is suggested that further research incorporates various sources of data collection such as tutor’s perspectives and the analysis of participants’ texts. Conclusions: It was concluded that writing center played an important role in academic writing socialization experiences of the participants, and there were various factors influencing and contributing to their academic writing socialization. Overall, it was concluded that the developmental processes into academic writing in second language were non-linear, dynamic, and multimodal.
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Gil, Heungbae, Kyoungbong Han, Junho Gong, and Dooyong Cho. "Improvement of the Performance-Based Seismic Design Method of Cable Supported Bridges with the Resilient-Friction Base Isolation Systems." Applied Sciences 10, no. 11 (June 5, 2020): 3942. http://dx.doi.org/10.3390/app10113942.
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In areas of civil engineering, the resilient friction base isolator (R-FBI) system has been used due to its enhanced isolation performance under seismic excitations. However, because nonlinear behavior of the R-FBI should be reflected in seismic design, effective stiffness (Keff) of the R-FBI is uniformly applied at both peak ground acceleration (PGA) of 0.08 g and 0.154 g which use a multimodal response spectrum (RS) method analysis. For rational seismic design of bridges, it should be required to evaluate the dynamics of the R-FBI from in-field tests and to improve the seismic design procedure based on the performance level of the bridges. The objective of this study is to evaluate the dynamics of the R-FBI and to suggest the performance-based seismic design method for cable-supported bridges with the R-FBI. From the comparison between the experiments’ results and modal shape analyses, the modal shape analyses using primary (Ku) or infinite stiffness (fixed end) showed a great agreement with the experimental results compared to the application of Keff in the shape analysis. Additionally, the RS or nonlinear time history method analyses by the PGA levels should be applied by reflecting the dynamic characteristics of the R-FBI for the reasonable and efficient seismic design.
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Oliveira, Flávia Alvarenga de. "Playing through metaphors: an analysis of metaphor use in life simulation games / Jogando com metáforas: uma análise do uso de metáforas em jogos de simulação de vida." REVISTA DE ESTUDOS DA LINGUAGEM 28, no. 2 (May 5, 2020): 871. http://dx.doi.org/10.17851/2237-2083.28.2.871-891.
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Abstract: From consistent narratives to cutting-edge graphic design, designers have been investing heavily in making their items competitive in the market. Given the high level of interaction between the players and the games they play, it is to be expected that much of how real-life representations are built in our minds will, in one way or another, influence how we interact with virtual reality, impacting on the playability of a game. Studies on the role of metaphors in (video)games are rather recent and much is yet to be investigated. Through simulations of family life and school routine, for example, these games imply human behavior as systematic and goal-oriented. For this study, we selected popular free life simulation games available at a popular App Store for smartphones. When listing the existing metaphors, we noticed a systematic difference: while conceptual metaphors were multimodal, consisting of a combination of verbal and visual information, primary metaphors showed to be intrinsically monomodal, consisting of visual information. In this study, we argue that metaphors in life simulation games start off as text-dominant, but become image-dominant after some time. That is, players rely on both images and verbal cues while learning how to play the games, but after some time they can just look at the symbolic cues for information. We therefore propose that the classification for metaphors in games should be continuous and as dynamic as the game itself, since there seems to be a movement from text-dominant to visual-dominant metaphors throughout the games.Keywords: metaphor; games; simulation; multimodal metaphors; primary metaphors.Resumo: De narrativas consistentes a design gráfico de ponta, designers têm investido em tornar seus produtos atrativos para o mercado. Dado o alto nível de interação entre jogadores e os jogos que usam, é esperado que muitas das representações das quais fazemos uso na vida real influenciem, até certo ponto, o modo como interagimos com a realidade virtual, o que impacta, portanto, sua jogabilidade. Estudos sobre o papel da metáfora em jogos são bastante recentes e muito ainda precisa ser investigado. Jogos de simulações de vida que envolvem relações familiares e rotinas escolares, por exemplo, parecem sugerir que o comportamento humano seja sistemático e orientado a objetivos específicos. Para o presente estudo, selecionamos jogos de simulação de vida populares em uma App Store para smartphones. Ao listar as metáforas encontradas, notamos uma sistemática diferença: enquanto metáforas conceituais eram multimodais (consistindo de combinações entre informações verbais e visuais), metáforas primárias se mostraram intrinsecamente multimodais (consistindo de informações visuais). Neste estudo, defendemos que metáforas em jogos de simulação de vida começam como texto-dominante, mas, à medida que o jogo se desenrola, tornam-se visualmente dominantes. Ou seja, jogadores dependem de ambos os tipos de informação ao aprender a jogar, mas depois de algum tempo, a informação pode ser obtida ao olhar para os símbolos na tela. Por esta razão, propomos que a classificação de metáforas em jogos se dê de forma contínua, ou seja, que seja tão dinâmica como os próprios jogos, uma vez que o movimento de texto-dominante para imagem-dominante parece se fazer presente no decorrer dos jogos.Palavras-chave: metáfora; jogos; simulação; metáfora multimodal; metáforas primárias.
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Li, Zhengnong, Yanfeng Hao, Gregory A. Kopp, and Chieh-Hsun Wu. "Identification of Multimodal Dynamic Characteristics of a Decurrent Tree with Application to a Model-Scale Wind Tunnel Study." Applied Sciences 12, no. 15 (July 24, 2022): 7432. http://dx.doi.org/10.3390/app12157432.
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Wind tunnel tests of scaled model trees provide an effective approach for understanding fluctuating wind loading and wind-induced response of trees. For decurrent trees, vague multimodal dynamic characteristics and ineffective estimation of leaf mass are two of the main obstacles to developing aeroelastic models. In this study, multimodal dynamic characteristics of the decurrent tree are identified by field measurements and finite element models (FEM). It was found that the number of branches swaying in phase determines the magnitude of effective mass fraction of branch modes. The frequencies of branch modes with larger effective mass fraction were considered as a reference for an aeroelastic model. In addition, an approach to estimate leaf mass without destruction was developed by comparing trunk frequency between field measurements and FEM. Based on these characteristics of the prototype, the scaled, aeroelastic model was constructed and assessed. It was found that the mismatch of leaf stiffness between the model and the prototype leads to mismatch of leaf streamlining and damping between them. The Vogel exponent associated with leaf streamlining provides a possible way to ensure consistency of leaf stiffness between the model and prototype.
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Silva, Rejane Aguiar da, Rogério Nascimento Bortolin, and Evandro De Melo Catelão. "O Texto Descritivo e o Whatsapp: um Diálogo Possível e uma Dinâmica que Funciona." Revista de Ensino, Educação e Ciências Humanas 17, no. 5 (December 30, 2016): 478. http://dx.doi.org/10.17921/2447-8733.2016v17n5p478-483.
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O conceito de descrição foi abandonado e redefinido como uma sequência textual, parte integrante de alguns planos de texto, como a do conto, da fábula, entre outros. Entretanto, perante a dificuldade percebida nos alunos em descrever itens, lugares, pessoas e situações tanto de maneira objetiva, quanto de maneira subjetiva, verificou-se, então, a necessidade de voltar às tipologias e trabalhar o texto descritivo (ampliando suas bases) em uma turma de segundo ano do Ensino Médio, possibilitando melhoria na composição de gêneros textuais, que possuam tal sequência em seu plano de texto de maneira mais eficiente e criativa. Unindo as novas tecnologias e o ensino, a dinâmica foi baseada em uma prática relatada no livro How people learn: brain, mind, experience and school (Committee from National Reserach Council) e adaptada para o contexto. Um grupo no whatsApp foi criado com os alunos, um deles foi escolhido e foi enviada uma imagem para uma aluna integrante da turma, que ficou com a tarefa de descrevê-la minuciosamente e postar para que os demais pudessem reproduzi-la da maneira mais fiel possível. Dessa forma, depois de trabalharem um bimestre como produtores de sequências descritivas, orais e escritas, os alunos finalizaram tal etapa produzindo um texto ilustrativo com base no material descritivo postado no grupo. Os resultados, descritos no presente trabalho, partiram de uma alternativa de sair dos formatos tradicionais da aula de produção de texto e proporcionando maior liberdade para que os alunos fizessem uso da linguagem multimodal de maneira competente e inovadora. Palavras-chave: Texto Descritivo. WhatsApp. Dinâmica de Produção. AbstractThe description concep was abandoned and redefined as a text sequence, an integral part of some text plans, such as the short story, fable and others. Due to the difficulty noticed at the students in describing items, places, people and situations both in an objectively and subjectively way, it has been observedthe necessity of going back to the typologies and work with the descriptive text (expanding its basis) in a second grade High School, making possible the improvementin the text genres composition that holds that sequence in their text plan in an efficient and creative way. Combining the new technologies and teaching, the dynamics was based in a practice reported on the book How people learn: brain, mind, experience and school (Committee from National Research Council) and adapted to the context. A whastapp group was created with the students, one of them was chosen and a picture was sent to a student from the class that was in charge ofdescribingit thoroughly and post it so the others could reproduce it faithfully. In this way, after working a bimester as oral and writing descriptive sequences producers, the students ended this step producing an illustrative text based on the descriptive material posted on the whatsapp group. The results, described in this paper, started from an alternative to quit the traditional formats of text production classes providing more freedom for the student using the multimodal language in a proficient and innovative way. Keywords: Descriptive text. Whatsapp. Dynamic Production.
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Mikhnenko, P. A. "Data-Mining as Tool of Multimodal Business-Analysis: Lexical Transformation in Annual Reports of Rostech Corporation." Vestnik of the Plekhanov Russian University of Economics, no. 6 (December 6, 2022): 126–36. http://dx.doi.org/10.21686/2413-2829-2022-6-126-136.
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The goal of the research is to study tools of Data Mining to find latent nature of lexical transformation in annual reports of the state-owned corporation ‘Rosteck’ and to estimate perspectives of extending methodology of businessanalysis by tools of multimodal business-analysis. Identification of trends in vocabulary transformation in annual reports was done by finding indicator features of unique key lexical units and their contexts. The author used methods of multimodal business-analysis and tools of Data Mining to study corporate reports in order to identify the most important signs and trends in business-vocabulary transformation at enterprises and corporations, which is usually ignored by conventional business-analysis. Russian texts of annual reports of ‘Rosteck’ corporation for 2017– 2021 act as initial data for the research. As Data Mining tools the author used Workflow-model on the on-line platform for analysis and data visualization Orange Data Mining 3.3.2. The research showed a clear trend to renewal of the annual report content within the period of analysis. Such units as ‘работник’ (worker), ‘обучение’ (training), ‘платформа’ (platform), ‘трансформация’ (transformation), ‘инициатива’ (initiative) and ‘академия’ (academy) demonstrated maximum dynamics in frequency growth. Context analysis allowed the author to draw a conclusion that transformation in business vocabulary is based on the growing attention of the corporation to problems of digital transformation, development of digital platforms, realization of technological and socio-humanitarian strategic initiatives, raising the quality of workers’ qualification by training in corporate net academy. Implementation of these measures requires upgrading strategy of managing finance, corruption, market and other risks. Multimodal business-analysis is a promising trend in academic research and a tool for resolving applied economic and organizational-managerial problems.
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Fernandes, Carlos M., Nuno Fachada, Juan-Julián Merelo, and Agostinho C. Rosa. "Steady state particle swarm." PeerJ Computer Science 5 (August 26, 2019): e202. http://dx.doi.org/10.7717/peerj-cs.202.
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This paper investigates the performance and scalability of a new update strategy for the particle swarm optimization (PSO) algorithm. The strategy is inspired by the Bak–Sneppen model of co-evolution between interacting species, which is basically a network of fitness values (representing species) that change over time according to a simple rule: the least fit species and its neighbors are iteratively replaced with random values. Following these guidelines, a steady state and dynamic update strategy for PSO algorithms is proposed: only the least fit particle and its neighbors are updated and evaluated in each time-step; the remaining particles maintain the same position and fitness, unless they meet the update criterion. The steady state PSO was tested on a set of unimodal, multimodal, noisy and rotated benchmark functions, significantly improving the quality of results and convergence speed of the standard PSOs and more sophisticated PSOs with dynamic parameters and neighborhood. A sensitivity analysis of the parameters confirms the performance enhancement with different parameter settings and scalability tests show that the algorithm behavior is consistent throughout a substantial range of solution vector dimensions.
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Lee, Yun Kyung, and Jeon Gue Park. "Multimodal Unsupervised Speech Translation for Recognizing and Evaluating Second Language Speech." Applied Sciences 11, no. 6 (March 16, 2021): 2642. http://dx.doi.org/10.3390/app11062642.
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This paper addresses an automatic proficiency evaluation and speech recognition for second language (L2) speech. The proposed method recognizes the speech uttered by the L2 speaker, measures a variety of fluency scores, and evaluates the proficiency of the speaker’s spoken English. Stress and rhythm scores are one of the important factors used to evaluate fluency in spoken English and are computed by comparing the stress patterns and the rhythm distributions to those of native speakers. In order to compute the stress and rhythm scores even when the phonemic sequence of the L2 speaker’s English sentence is different from the native speaker’s one, we align the phonemic sequences based on a dynamic time-warping approach. We also improve the performance of the speech recognition system for non-native speakers and compute fluency features more accurately by augmenting the non-native training dataset and training an acoustic model with the augmented dataset. In this work, we augment the non-native speech by converting some speech signal characteristics (style) while preserving its linguistic information. The proposed variational autoencoder (VAE)-based speech conversion network trains the conversion model by decomposing the spectral features of the speech into a speaker-invariant content factor and a speaker-specific style factor to estimate diverse and robust speech styles. Experimental results show that the proposed method effectively measures the fluency scores and generates diverse output signals. Also, in the proficiency evaluation and speech recognition tests, the proposed method improves the proficiency score performance and speech recognition accuracy for all proficiency areas compared to a method employing conventional acoustic models.
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Sidor, Kamil, and Marian Wysocki. "Recognition of Human Activities Using Depth Maps and the Viewpoint Feature Histogram Descriptor." Sensors 20, no. 10 (May 22, 2020): 2940. http://dx.doi.org/10.3390/s20102940.
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In this paper we propose a way of using depth maps transformed into 3D point clouds to classify human activities. The activities are described as time sequences of feature vectors based on the Viewpoint Feature Histogram descriptor (VFH) computed using the Point Cloud Library. Recognition is performed by two types of classifiers: (i) k-NN nearest neighbors’ classifier with Dynamic Time Warping measure, (ii) bidirectional long short-term memory (BiLSTM) deep learning networks. Reduction of classification time for the k-NN by introducing a two tier model and improvement of BiLSTM-based classification via transfer learning and combining multiple networks by fuzzy integral are discussed. Our classification results obtained on two representative datasets: University of Texas at Dallas Multimodal Human Action Dataset and Mining Software Repositories Action 3D Dataset are comparable or better than the current state of the art.
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Csuhai, Éva Anett, Attila Csaba Nagy, Gergő József Szőllősi, and Ilona Veres-Balajti. "Impact Analysis of 20-Week Multimodal Progressive Functional–Proprioceptive Training among Sedentary Workers Affected by Non-Specific Low-Back Pain: An Interventional Cohort Study." International Journal of Environmental Research and Public Health 18, no. 20 (October 10, 2021): 10592. http://dx.doi.org/10.3390/ijerph182010592.
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According to the latest data published by the WHO, 1.71 billion people suffer from musculoskeletal disorders and 568 million are affected by back pain, making these the most significant occupational health problems. The aim of this study was to analyze the effects of a newly developed Multimodal Workplace Training Program implemented among young sedentary employees in order to treat and prevent these problems. The 20-week Training Program was conducted at the National Instruments Corporations’ Hungarian subsidiary in Debrecen between January and June, 2019. Pre- and post-intervention questionnaires were used to assess subjective parameters. Baseline and follow-up physical examinations were performed using the SpinalMouse, Y-Balance, Sit and Reach, Prone and Side Plank, Timed Abdominal Curl, and Biering-Sorensen tests. The results for 76 subjects were eligible for statistical analysis. Our Training Program was effective in several aspects, including a reduction in musculoskeletal symptoms and improvements in posture (p < 0.001), in dynamic (p < 0.01) and static-isometric (p < 0.001) core strength, in flexibility (p < 0.001), in spinal inclination in the sagittal (p < 0.001) and frontal (p < 0.01) plane, and in balance and coordination (p < 0.05). The Multimodal Progressive Functional–Proprioceptive Training was highly effective, and the application of such a complex training program can be recommended in workplace settings.
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Tasnim, Nusrat, and Joong-Hwan Baek. "Dynamic Edge Convolutional Neural Network for Skeleton-Based Human Action Recognition." Sensors 23, no. 2 (January 10, 2023): 778. http://dx.doi.org/10.3390/s23020778.
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To provide accessible, intelligent, and efficient remote access such as the internet of things, rehabilitation, autonomous driving, virtual games, and healthcare, human action recognition (HAR) has gained much attention among computer vision researchers. Several methods have already been addressed to ensure effective and efficient action recognition based on different perspectives including data modalities, feature design, network configuration, and application domains. In this article, we design a new deep learning model by integrating criss-cross attention and edge convolution to extract discriminative features from the skeleton sequence for action recognition. The attention mechanism is applied in spatial and temporal directions to pursue the intra- and inter-frame relationships. Then, several edge convolutional layers are conducted to explore the geometric relationships among the neighboring joints in the human body. The proposed model is dynamically updated after each layer by recomputing the graph on the basis of k-nearest joints for learning local and global information in action sequences. We used publicly available benchmark skeleton datasets such as UTD-MHAD (University of Texas at Dallas multimodal human action dataset) and MSR-Action3D (Microsoft action 3D) to evaluate the proposed method. We also investigated the proposed method with different configurations of network architectures to assure effectiveness and robustness. The proposed method achieved average accuracies of 99.53% and 95.64% on the UTD-MHAD and MSR-Action3D datasets, respectively, outperforming state-of-the-art methods.
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Kou, Fa-Rong, Dong-Dong Wei, and Lei Tian. "Multimode Coordination Control of a Hybrid Active Suspension." Shock and Vibration 2018 (December 16, 2018): 1–16. http://dx.doi.org/10.1155/2018/6378023.
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In order to effectively realize the damping control and regenerative energy recovery of vehicle suspension, a new kind of hybrid active suspension structure with the ball screw actuator and magnetorheological (MR) damper is put forward. Firstly, for the analysis of the suspension performance, a quarter dynamic model of vehicle hybrid suspension is established, and at the same time, the mathematical models of MR damper and ball screw actuator are founded. Secondly, the active mode with damping switching control of the hybrid suspension and the semiactive mode with feedback adjustment of the electromagnetic damping force of the hybrid suspension are analyzed. Then, the multimode coordinated control system of the hybrid suspension is designed. Under the cyclic driving condition, the damping performance and energy consumption characteristics of the hybrid suspension are simulated by MATLAB/Simulink software. Finally, the bench tests of the hybrid suspension system are done. The simulation and experimental results show that compared with passive suspension, the root mean square of the sprung mass acceleration of the hybrid suspension with the active mode and semiactive mode is, respectively, reduced by 39% and 16% under the random road. The damping effect of the hybrid suspension system is obvious.
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Kim, Jinsoo, and Jeongho Cho. "Exploring a Multimodal Mixture-Of-YOLOs Framework for Advanced Real-Time Object Detection." Applied Sciences 10, no. 2 (January 15, 2020): 612. http://dx.doi.org/10.3390/app10020612.
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To construct a safe and sound autonomous driving system, object detection is essential, and research on fusion of sensors is being actively conducted to increase the detection rate of objects in a dynamic environment in which safety must be secured. Recently, considerable performance improvements in object detection have been achieved with the advent of the convolutional neural network (CNN) structure. In particular, the YOLO (You Only Look Once) architecture, which is suitable for real-time object detection by simultaneously predicting and classifying bounding boxes of objects, is receiving great attention. However, securing the robustness of object detection systems in various environments still remains a challenge. In this paper, we propose a weighted mean-based adaptive object detection strategy that enhances detection performance through convergence of individual object detection results based on an RGB camera and a LiDAR (Light Detection and Ranging) for autonomous driving. The proposed system utilizes the YOLO framework to perform object detection independently based on image data and point cloud data (PCD). Each detection result is united to reduce the number of objects not detected at the decision level by the weighted mean scheme. To evaluate the performance of the proposed object detection system, tests on vehicles and pedestrians were carried out using the KITTI Benchmark Suite. Test results demonstrated that the proposed strategy can achieve detection performance with a higher mean average precision (mAP) for targeted objects than an RGB camera and is also robust against external environmental changes.
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Li, Xin, and Albert C. Reynolds. "A Gaussian Mixture Model as a Proposal Distribution for Efficient Markov-Chain Monte Carlo Characterization of Uncertainty in Reservoir Description and Forecasting." SPE Journal 25, no. 01 (September 23, 2019): 001–36. http://dx.doi.org/10.2118/182684-pa.
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Summary Generating an estimate of uncertainty in production forecasts has become nearly standard in the oil industry, but is often performed with procedures that yield at best a highly approximate uncertainty quantification. Formally, the uncertainty quantification of a production forecast can be achieved by generating a correct characterization of the posterior probability-density function (PDF) of reservoir-model parameters conditional to dynamic data and then sampling this PDF correctly. Although Markov-chain Monte Carlo (MCMC) provides a theoretically rigorous method for sampling any target PDF that is known up to a normalizing constant, in reservoir-engineering applications, researchers have found that it might require extraordinarily long chains containing millions to hundreds of millions of states to obtain a correct characterization of the target PDF. When the target PDF has a single mode or has multiple modes concentrated in a small region, it might be possible to implement a proposal distribution dependent on a random walk so that the resulting MCMC algorithm derived from the Metropolis-Hastings acceptance probability can yield a good characterization of the posterior PDF with a computationally feasible chain length. However, for a high-dimensional multimodal PDF with modes separated by large regions of low or zero probability, characterizing the PDF with MCMC using a random walk is not computationally feasible. Although methods such as population MCMC exist for characterizing a multimodal PDF, their computational cost generally makes the application of these algorithms far too costly for field application. In this paper, we design a new proposal distribution using a Gaussian mixture PDF for use in MCMC where the posterior PDF can be multimodal with the modes spread far apart. Simply put, the method generates modes using a gradient-based optimization method and constructs a Gaussian mixture model (GMM) to use as the basic proposal distribution. Tests on three simple problems are presented to establish the validity of the method. The performance of the new MCMC algorithm is compared with that of random-walk MCMC and is also compared with that of population MCMC for a target PDF that is multimodal.
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Zhu, Dongyong, Bo He, Mengdi Zhang, Yixuan Wan, Ruibin Liu, Lei Wang, Yi Zhang, Yunqing Li, and Fabao Gao. "A Multimodal MR Imaging Study of the Effect of Hippocampal Damage on Affective and Cognitive Functions in a Rat Model of Chronic Exposure to a Plateau Environment." Neurochemical Research 47, no. 4 (January 4, 2022): 979–1000. http://dx.doi.org/10.1007/s11064-021-03498-5.
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AbstractProlonged exposure to high altitudes above 2500 m above sea level (a.s.l.) can cause cognitive and behavioral dysfunctions. Herein, we sought to investigate the effects of chronic exposure to plateau hypoxia on the hippocampus in a rat model by using voxel-based morphometry, creatine chemical exchange saturation transfer (CrCEST) and dynamic contrast-enhanced MR imaging techniques. 58 healthy 4-week-old male rats were randomized into plateau hypoxia rats (H group) as the experimental group and plain rats (P group) as the control group. H group rats were transported from Chengdu (500 m a.s.l.), a city in a plateau located in southwestern China, to the Qinghai–Tibet Plateau (4250 m a.s.l.), Yushu, China, and then fed for 8 months there, while P group rats were fed in Chengdu (500 m a.s.l.), China. After 8 months of exposure to plateau hypoxia, open-field and elevated plus maze tests revealed that the anxiety-like behavior of the H group rats was more serious than that of the P group rats, and the Morris water maze test revealed impaired spatial memory function in the H group rats. Multimodal MR imaging analysis revealed a decreased volume of the regional gray matter, lower CrCEST contrast and higher transport coefficient Ktrans in the hippocampus compared with the P group rats. Further correlation analysis found associations of quantitative MRI parameters of the hippocampus with the behavioral performance of H group rats. In this study, we validated the viability of using noninvasive multimodal MR imaging techniques to evaluate the effects of chronic exposure to a plateau hypoxic environment on the hippocampus.
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Tasnim, Nusrat, and Joong-Hwan Baek. "Deep Learning-Based Human Action Recognition with Key-Frames Sampling Using Ranking Methods." Applied Sciences 12, no. 9 (April 20, 2022): 4165. http://dx.doi.org/10.3390/app12094165.
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Nowadays, the demand for human–machine or object interaction is growing tremendously owing to its diverse applications. The massive advancement in modern technology has greatly influenced researchers to adopt deep learning models in the fields of computer vision and image-processing, particularly human action recognition. Many methods have been developed to recognize human activity, which is limited to effectiveness, efficiency, and use of data modalities. Very few methods have used depth sequences in which they have introduced different encoding techniques to represent an action sequence into the spatial format called dynamic image. Then, they have used a 2D convolutional neural network (CNN) or traditional machine learning algorithms for action recognition. These methods are completely dependent on the effectiveness of the spatial representation. In this article, we propose a novel ranking-based approach to select key frames and adopt a 3D-CNN model for action classification. We directly use the raw sequence instead of generating the dynamic image. We investigate the recognition results with various levels of sampling to show the competency and robustness of the proposed system. We also examine the universality of the proposed method on three benchmark human action datasets: DHA (depth-included human action), MSR-Action3D (Microsoft Action 3D), and UTD-MHAD (University of Texas at Dallas Multimodal Human Action Dataset). The proposed method secures better performance than state-of-the-art techniques using depth sequences.
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Ahmad, Afham Zulhusmi, Aminudin Abu, Lee Kee Quen, Nor’azizi Othman, and Faridah Che In. "EXPERIMENTAL ANALYSIS OF THE VISCOUS TUNED MASS DAMPER FOR THE ATTENUATION OF STRUCTURAL RESPONSES." Jurnal Teknologi 83, no. 6 (September 27, 2021): 125–39. http://dx.doi.org/10.11113/jurnalteknologi.v83.17151.
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This paper presents a systematic experimental investigation on the performance of a Multiple Tuned Mass Dampers (MTMDs) attached to a structural system under dynamic load excitation. A Modal Experimental Analysis (EMA) of a three-story structural frame equipped with a viscous damper system was carried out through a series of shaking table tests to evaluate the performance and verify the analysis approach. Each of the TMDs consists of a mass attached to a structural floor via Thermoplastic Polyurethane (TPU) viscous bearing. Initially, the TMD was designed solely to control single mode vibration and then the mechanism is extended for the application of controlling multimode responses. The experiment demonstrated that the proposed viscous dampers exhibit good performance in reducing the response of structures under dynamic loads, and able to control both fundamental and higher vibration modes of a Multiple Degree of Freedom (MDOF) primary system effectively. It was also evident that the attachment of the air dashpot dampers to each of TMDs lead to better efficiency on controlling the amplification of the damper mass and significantly contribute to better structural modal tuning.
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Mekheimar, Mariam Waheed. "Multimodal Discourse Analysis of Egyptian Political Movies: Framing Social Justice in the Movie Ahl El Kemma (Cream of the Crop)." Global Social Sciences Review VI, no. IV (December 30, 2021): 68–83. http://dx.doi.org/10.31703/gssr.2021(vi-iv).07.
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Nascent research is conducted on the advancement of discourse analysis in film to include different modes as images, sound and text. This study is focused on how images are embedded within texts in an audio-visual medium such as cinema to highlight political messages; it also seeks to broaden our understanding of politics beyond a relatively narrow conceptualization of the "political" through studying non-traditional discourses such as cinematic discourse. The aim of the study is to develop a systematic approach to film analysis to examine political nuance sin film. The method adopted in this research is Multi modal Discourse Analysis (MDA) focusing on embedding visuals, audio, and text in the film to examine how a political meaning can be conveyed through the interaction between those different modes. Drawing on the multi modal discourse analysis literature, different modalities will be studied to understand how those modes interact in the cinematic discourse. The film, "Cream of the Crop", is selected as an example to examine how political meanings in film can tackle the cinematic representation of the notion of social justice. This study contributes to the vast array of literature on the multi modal discourse analysis of films by focusing on political dynamics within them.
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Kou, Farong, Qiangqiang Jing, Chen Chen, and Jianghao Wu. "Endocrine Composite Skyhook-Groundhook Control of Electromagnetic Linear Hybrid Active Suspension." Shock and Vibration 2020 (February 29, 2020): 1–17. http://dx.doi.org/10.1155/2020/3402168.
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In order to effectively improve vehicle riding comfort, handling stability, and realize vibration energy recovery, a new kind of electromagnetic linear hybrid active suspension (EMLHAS) integrated with linear motor and solenoid valve shock absorber is put forward. Firstly, for the analysis of the suspension performance, a quarter dynamic model of EMLHAS is established. At the same time, the mathematical models of a linear motor, including the active state and energy-regenerative state, are found. The correctness of mathematical models for the linear motor in the active and energy-regenerative states is verified by means of characteristic tests. Moreover, the velocity characteristic tests of solenoid valve shock absorber are carried out to determine its mathematical polynomial model in the semiactive state. Then, a new kind of multimode endocrine composite skyhook-groundhook control strategy is proposed. The suspension motion is divided into four modes according to the driving conditions of the vehicle. An endocrine control with long feedback and short feedback is combined with the skyhook-groundhook control. The control laws of the skyhook-groundhook controller and endocrine controller are, respectively, designed. Finally, the simulation analysis of suspension dynamic performance and energy-regenerative characteristic is done. The results show the control effect of endocrine composite skyhook-groundhook control is better than that of skyhook-groundhook control, which improves vehicle riding comfort and handling stability. Moreover, part of vibration energy is recovered.
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Görlinger, Klaus, Hawra Almutawah, Fatimah Almutawaa, Maryam Alwabari, Zahra Alsultan, Jumanah Almajed, Mahmoud Alwabari, Maryam Alsultan, Duri Shahwar, and Khaled Ahmed Yassen. "The role of rotational thromboelastometry during the COVID-19 pandemic: a narrative review." Korean Journal of Anesthesiology 74, no. 2 (April 1, 2021): 91–102. http://dx.doi.org/10.4097/kja.21006.
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The coronavirus disease 2019 (COVID-19) pandemic is currently recognized as a global health crisis. This viral infection is frequently associated with hypercoagulability, with a high incidence of thromboembolic complications that can be fatal. In many situations, the standard coagulation tests (SCT) fail to detect this state of hypercoagulability in patients with COVID-19 since clotting times are either not or only mildly affected. The role of viscoelastic tests such as rotational thromboelastometry (ROTEM®) during this pandemic is explored in this review. COVID-19-associated coagulopathy, as measured using the rotational thromboelastometry parameters, can vary from hypercoagulability due to increased fibrin polymerization and decreased fibrinolysis to bleeding from hypocoagulability. The use of a multimodal diagnostic and monitoring approach, including both rotational thromboelastometry and SCT, such as plasma fibrinogen and D-dimer concentrations, is recommended. Rotational thromboelastometry provides comprehensive information about the full coagulation status of each patient and detects individual variations. Since COVID-19-associated coagulopathy is a very dynamic process, the phenotype can change during the course of infection and in response to anticoagulation therapy. Data from published literature provide evidence that the combination of rotational thromboelastometry and SCT analysis is helpful in detecting hemostasis issues, guiding anticoagulant therapy, and improving outcomes in COVID-19 patients. However, more research is needed to develop evidence-based guidelines and protocols.
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Peters, Judith C., Joel Reithler, Teresa Schuhmann, Tom de Graaf, Kâmil Uludağ, Rainer Goebel, and Alexander T. Sack. "On the feasibility of concurrent human TMS-EEG-fMRI measurements." Journal of Neurophysiology 109, no. 4 (February 15, 2013): 1214–27. http://dx.doi.org/10.1152/jn.00071.2012.
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Simultaneously combining the complementary assets of EEG, functional MRI (fMRI), and transcranial magnetic stimulation (TMS) within one experimental session provides synergetic results, offering insights into brain function that go beyond the scope of each method when used in isolation. The steady increase of concurrent EEG-fMRI, TMS-EEG, and TMS-fMRI studies further underlines the added value of such multimodal imaging approaches. Whereas concurrent EEG-fMRI enables monitoring of brain-wide network dynamics with high temporal and spatial resolution, the combination with TMS provides insights in causal interactions within these networks. Thus the simultaneous use of all three methods would allow studying fast, spatially accurate, and distributed causal interactions in the perturbed system and its functional relevance for intact behavior. Concurrent EEG-fMRI, TMS-EEG, and TMS-fMRI experiments are already technically challenging, and the three-way combination of TMS-EEG-fMRI might yield additional difficulties in terms of hardware strain or signal quality. The present study explored the feasibility of concurrent TMS-EEG-fMRI studies by performing safety and quality assurance tests based on phantom and human data combining existing commercially available hardware. Results revealed that combined TMS-EEG-fMRI measurements were technically feasible, safe in terms of induced temperature changes, allowed functional MRI acquisition with comparable image quality as during concurrent EEG-fMRI or TMS-fMRI, and provided artifact-free EEG before and from 300 ms after TMS pulse application. Based on these empirical findings, we discuss the conceptual benefits of this novel complementary approach to investigate the working human brain and list a number of precautions and caveats to be heeded when setting up such multimodal imaging facilities with current hardware.
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Benacchio, Tommaso, and Rupert Klein. "A Semi-Implicit Compressible Model for Atmospheric Flows with Seamless Access to Soundproof and Hydrostatic Dynamics." Monthly Weather Review 147, no. 11 (November 1, 2019): 4221–40. http://dx.doi.org/10.1175/mwr-d-19-0073.1.
Full textAbstract:
Abstract When written in conservation form for mass, momentum, and density-weighted potential temperature, and with Exner pressure in the momentum equation, the pseudoincompressible model and the hydrostatic model only differ from the full compressible equations by some additive terms. This structural proximity is transferred here to a numerical discretization providing seamless access to all three analytical models. The semi-implicit second-order scheme discretizes the rotating compressible equations by evolving full variables, and, optionally, with two auxiliary fields that facilitate the construction of an implicit pressure equation. Time steps are constrained by the advection speed only as a result. Borrowing ideas on forward-in-time differencing, the algorithm reframes the authors’ previously proposed schemes into a sequence of implicit midpoint step, advection step, and implicit trapezoidal step. Compared with existing approaches, results on benchmarks of nonhydrostatic- and hydrostatic-scale dynamics are competitive. The tests include a new planetary-scale gravity wave test that highlights the scheme’s ability to run with large time steps and to access multiple models. The advancement represents a sizeable step toward generalizing the authors’ acoustics-balanced initialization strategy to also cover the hydrostatic case in the framework of an all-scale blended multimodel solver.
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Rwigema, James, Hyo-Rim Choi, and TaeYong Kim. "A Differential Evolution Approach to Optimize Weights of Dynamic Time Warping for Multi-Sensor Based Gesture Recognition." Sensors 19, no. 5 (February 27, 2019): 1007. http://dx.doi.org/10.3390/s19051007.
Full textAbstract:
In this research, we present a differential evolution approach to optimize the weights of dynamic time warping for multi-sensory based gesture recognition. Mainly, we aimed to develop a robust gesture recognition method that can be used in various environments. Both a wearable inertial sensor and a depth camera (Kinect Sensor) were used as heterogeneous sensors to verify and collect the data. The proposed approach was used for the calculation of optimal weight values and different characteristic features of heterogeneous sensor data, while having different effects during gesture recognition. In this research, we studied 27 different actions to analyze the data. As finding the optimal value of the data from numerous sensors became more complex, a differential evolution approach was used during the fusion and optimization of the data. To verify the performance accuracy of the presented method in this study, a University of Texas at Dallas Multimodal Human Action Datasets (UTD-MHAD) from previous research was used. However, the average recognition rates presented by previous research using respective methods were still low, due to the complexity in the calculation of the optimal values of the acquired data from sensors, as well as the installation environment. Our contribution was based on a method that enabled us to adjust the number of depth cameras and combine this data with inertial sensors (multi-sensors in this study). We applied a differential evolution approach to calculate the optimal values of the added weights. The proposed method achieved an accuracy 10% higher than the previous research results using the same database, indicating a much improved accuracy rate of motion recognition.
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Sheval, V. V., and A. I. Kimyaev. "STRUCTURAL ANALYSIS OF ON-BOARD MULTIMODE AUTO TRACKING SYSTEM." Vestnik komp'iuternykh i informatsionnykh tekhnologii, no. 204 (June 2021): 3–11. http://dx.doi.org/10.14489/vkit.2021.06.pp.003-011.
Full textAbstract:
Two variants of two-channel structures of tracking systems has been introduced into consideration, which are sequentially used in two modes of operation of the on-board automatic tracking system. Taking into account the fact of quantization according to the level of signals for measuring the angles of mismatch of each of the channels, it is justified to use not one, but two different structures in the second auto-tracking mode. Using mathematical modeling, the expediency of increasing the number of two-channel structures from two to three, used in a single auto-tracking process according to the criterion of the provided dynamic accuracy, have been demonstrated. This paper presents a two-channel structures investigation for tracking systems operating in tracking mode of maneuverable targets, taking into account various systems of carrier operations. Considered multichannel complex control system (CCS) structure that include precise channel (PC) and coarse channel (CC). CC use the carrier and the flight control system (FCS) to make rude tracking. The PC function implemented by an optoelectronic device (OED) has placed in a traditional angular mechanical suspension, which act with high accuracy. Described three CCS operation modes classified by target mark fall inside or outside direction finder (DF) CC or PC field of view. At the capture mode can be used only information from the CC DF. At the complex control mode becomes possible to use information from both CC DF and PC DF. At the precision mode, it is advisable to use information only from the PC DF. Developed CCS functioning math model to check main points of this work. Math model makes possible to carry out simulation tests for each mode in a separate operation, as well as when they are integrated into a single complex automatic target tracking mode. Has been described efficiency factor as the total time of satisfactory accuracy relative to entire experiment time. On math model modes efficiency has compared to each other. As result precision mode have higher efficiency and capture mode lowest. As conclusion recommended use a precision mode to achieve higher accuracy at auto tracking tasks.
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Gervasio, Miriti, Abisaki Oloo Aono, and Nancy Kisala. "An Analysis of the Intertextuality of Social Media Discourse of Chuka University Students on WhatsApp Platforms." International Journal of Linguistics, Literature and Translation 4, no. 7 (July 30, 2021): 214–20. http://dx.doi.org/10.32996/ijllt.2021.4.7.22x.
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The earliest forms of the internet were developed in the 1960s whereas the first recognizable social media site was created in 1997. Since then, Social media has greatly influenced the way people communicate with one another and continues to gain popularity owing to the technological milestones made in the world of communication. As people communicate via social media interaction platforms, language naturally and inevitably experiences some changes. Therefore, there was a need to undertake a linguistic study to account for such changes and developments in language use. The main concern of this study was to analyze the university students’ social media discourse. The discourse analyzed sprung from the WhatsApp interaction platform. The WhatsApp groups utilized were those formed by Chuka University students in Tharaka Nithi County, Kenya. Particularly, the following objective guided the study: to demonstrate the intertextuality nature of social media discourse. The study employed a multimodal semiotic approach as the analytic tool. A descriptive research design and the qualitative technique were employed to analyze data. Both Snowball and purposive sampling procedures were used. Snowballing was used to establish the WhatsApp groups that were used by the students, while the purposive sampling procedure was used to selectively collect texts from WhatsApp groups. The texts that were purposively selected were those that demonstrated the intertextuality nature of social media discourse. The rationale for choosing WhatsApp was the fact that there was a paucity of linguistic studies based on this interaction platform despite its popularity. The study findings revealed that social media discourse exhibits intertextuality in which language is dexterously and creatively used. This study sheds light on language usage and its dynamics. It is hoped that it will enrich knowledge on Multimodality and Semiotic Theory.
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Piejko, Laura, Kamila Niewolak, Dariusz Fielek, Paula Pecyna, Dariusz Chełminiak, Paweł Zieliński, Karol Kobylarz, et al. "Medical Resort Treatment Extended with Modern Feedback Exercises Using Virtual Reality Improve Postural Control in Breast Cancer Survivors. Preliminary Study." Acta Balneologica 62, no. 2 (2020): 92–98. http://dx.doi.org/10.36740/abal202002104.
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Introduction: Women with breast cancer have an increasing chance of survival for many years. Multimodal, extremely effective but also aggressive treatment, often leads to disorders of neuromuscular excitability and physical fitness of the patients. Therefore, when planning the physiotherapy process of women treated for breast cancer, one should look for the most effective methods of improvement with broad neurostimulatory and neuromodulatory effects. In recent years, more and more attention has been paid to the possibilities of using virtual reality exercises in therapy. Aim: The study was to understand the impact of medical resort treatment extended with modern feedback exercises using virtual reality to improve postural control in breast cancer survivors. M aterial and Methods: A clinical, pilot, non-controlled study was conducted at the Solanki Medical Resort in Inowroclaw. 46 women aged 36 to 63 completed the study (mean 51.67 ± 6.62 years). The patients participated in spa therapy for 3 weeks. For basic medical treatment, to improve postural control, physical exercises using feedback based on virtual reality were introduced. Postural control tests performed on the stabilometric platform were used to assess the progress of therapy. Results: In the assessment of dynamic postural control, the length of the center of foot pressure (COP) movement path before the treatment was on average 278.28 cm (± 147.13) and after treatment shortened to 209.60 cm (± 86.49) which was statistically significant (p = 0.0083). In the assessment of static postural control, no statistically significant differences were found between the length of the COP pathway before treatment compared to the condition before treatment (p> 0.05). Conclusions: Medical treatment enriched with physical exercises using feedback based on virtual reality did not affect static postural control but contributed to the improvement of dynamic postural control. The results of the study should be confirmed in high-quality therapeutic experiments, including control groups.
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Капранов, Олександр. "The Framing of Dementia in Scientific Articles Published in ‘Alzheimer’s and Dementia’ in 2016." East European Journal of Psycholinguistics 3, no. 2 (December 22, 2016): 32–48. http://dx.doi.org/10.29038/eejpl.2016.3.2.kap.
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The present article involves a qualitative study of the framing of dementia in ‘Alzheimer’s and Dementia’, the Journal of the Alzheimer’s Association, published in 2016. The aim of this study is to elucidate how dementia is framed qualitatively in the corpus consisting of scientific articles involving dementia published in ‘Alzheimer’s and Dementia’. The results of the qualitative analysis indicate that dementia is represented in ‘Alzheimer’s and Dementia’ in 2016 as the frames associated with gender, age, costs, caregiver and care-recipients, disability and death, health policy, spatial orientation, medical condition, and ethnic groups. These findings are further discussed in the article.
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Бутакова, Лариса Олеговна. "COMMUNICATION BETWEEN THE STATE AND ELDERLY PEOPLE (THE STUDY OF THE SITES OF THE PENSION FUND OF THE RUSSIAN FEDERATION, THE PUBLIC ORGANIZATION “UNION OF PENSIONERS OF RUSSIA”, REGIONAL SOCIAL CENTER)." Tomsk state pedagogical university bulletin, no. 4(210) (July 27, 2020): 163–73. http://dx.doi.org/10.23951/1609-624x-2020-4-163-173.
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Введение. Проведен анализ особенностей структуры и смыслового содержания виртуальных порталов Пенсион ного фонда Российской Федерации (ПФ РФ), всероссийской общественной организа ции «Союз пенсионеров России» (СПР), сайта регионального социального центра как разновидностей институционального виртуального ресурса, осуществляющего типовую коммуникацию государства с населением разного возраста, в первую очередь пожилого. Цель статьи – описать дискурсивные, коммуникативные, структурные особенности официальных порталов государственных и общественных организаций, обращенных к пожилой части населения страны и региона, выявить способы организации коммуникации, характер общения с адресатом. Материал и методы. Общая методология исследования базируется на исследованиях лингвистов, психологов, психолингвистов в области речевых, психологических, когнитивных особенностей людей пожилого возраста, а также когнитивно-дискурсивных подходах к общению официальных структур и общественных организаций с разными слоями населения в виртуальной среде. Использовались структурный (контент) анализ сайта, коммуникативный анализ отдельных компонентов сайтов, прагмастилистический анализ фрагментов текстов, содержащихся в контенте сайта, жанровый анализ высказываний и фрагментов текстов. Результаты и обсуждение. Обнаружился разный объем гипертекстовых, мультимодальных, поликодовых структурных компонентов на фоне типичных для виртуальных объектов такого рода формы и содержания. Виртуальное пространство портала ПФ РФ имеет черты маркетинговой платформы, содержащей разделы, ориентированные на обратную связь с адресатом: личный кабинет гражданина, центр консультирования, пенсионный калькулятор; контент портала СПР соединяет маркетинговые, информирующие, воздействующие и интерактивные черты. Степень совмещения институционального официального, официально-делового, рекламного, ритуального, обыденного дискурсов также неодинакова, зависит от характера субъекта, функции и правообладателя виртуального объекта. Наибольшим объемом официального и официально-делового дискурсивного компонента, наименьшей величиной визуальных средств отличается портал ПФ РФ. Портал СПР в равной степени сочетает официально-деловой, правовой, публицистический и обыденный типы дискурса, оформленные в том числе с помощью статичных и динамичных инфографических компонентов. Портал регионального социального центра содержит компоненты правового, официально-делового, просветительского, публицистического типов дискурса (последний представлен номерами регионального периодического издания). Заключение. Структура, содержание контента, тип коммуникации порталов указывают на наличие не полностью совпадающих типов адресата. Адресат портала ПФ РФ – гендерно, профессионально, социально не определенное лицо пенсионного, предпенсионного возраста, заинтересованное в концептуально ограниченной информации; мобильное в когнитивном отношении, легко переходящее от обыденной концептуализации действительности к профильной, способное быстро адаптировать большой объем правовой информации, ориентирующееся в виртуальной среде, меняющее стилевые и коммуникативные регистры. Адресат портала СПР – гендерно, социально не определенный пенсионер, активный по отношению к общественной и государственной жизни России, имеющий широкие интересы, вовлеченный в занятия физкультурой и спортом, волонтерское движение. Адресат портала Бюджетного учреждения Омской области «Комплексный центр социального обслуживания населения Шербакульского района» – гендерно не определенный, социально не защищенный (пенсионер в том числе), территориально ограниченный член социума, активный по отношению к общественной жизни Омской области и района, имеющий широкие интересы, вовлеченный в занятия физкультурой и спортом, не сдающийся ни при каких обстоятельствах. Общим является наличие навыков свободного владения компьютером, умение ориентироваться в виртуальной среде либо осознание необходимости обучаться компьютерной грамоте. Introduction. The article analyzes the features of the structure and semantic content of the virtual portals of the Pension Fund of the Russian Federation, the All-Russian public organization “Union of Pensioners of Russia”, the portal of the regional social center as a kind of institutional virtual resource that provides typical communication between the state and people of different ages – primarily the elderly. The purpose of the article is to describe the discursive, communicative, structural features of the official portals of state and public organizations, addressed to the elderly population of the country and region, to identify ways of organizing communication, the nature of communication with the addressee. Material and methods. The general research methodology is based on studies of linguists, psychologists, psycholinguists in the field of speech, psychological, cognitive characteristics of elderly people, as well as cognitivediscursive approaches to communication between official structures and public organizations with different layers of the population in a virtual environment. We used structural (content) analysis of the site, communicative analysis of the individual components of the sites, pragma-style analysis of fragments of texts contained in the content of the site, genre analysis of statements and fragments of texts. Results and discussion. Portals have a different volume of hypertext, multimodal, polycode structural components against the background of typical forms and contents typical for virtual objects. The virtual space of the RF PF portal has the features of a marketing platform that contains sections oriented to feedback from the addressee and their implementation – a citizen’s personal account, counseling center, and pension calculator; The content of the portal of the joint venture of the Russian Federation combines marketing, informative, effective and interactive features. The degree of combination of institutional, official, business, advertising, ritual, everyday discourses is also different, depending on the nature of the subject, function and copyright holder of the virtual object. The largest volume of official and official-business discursive component, the smallest amount of visual means is distinguished by the RF PF portal, the portal of the Union of Pensioners of the Russian Federation equally combines officialbusiness, legal, journalistic and everyday types of discourse, designed also using static and dynamic infographic components; the portal of the regional social center contains components of legal, official-business, educational journalistic types of discourse (the latter is represented by the numbers of the regional periodical). Conclusion. The structure, content of website, type of communication of the portals indicate the presence of incompatible types of recipient. The addressee of the Pension Fund of the Russian Federation’s portal is a gender, professional, socially undefined person of retirement, pre-retirement age, interested in conceptually limited information; it’s mobile in a cognitive sense, easily transitioning from an ordinary conceptualization of reality to specialized, able to quickly adapt a large amount of legal information, orientated in a virtual environment, changing style and communicative registers. The addressee of the portal of the Union of Pensioners of the Russian Federation is a gender, socially undefined pensioner, active in relation to public and state life in Russia, having broad interests, involved in physical education and sports, and volunteer movement. The addressee of the portal of the Public Institution “Public Center for Social Policy of the Sherbakul Region” is a gender-undefined, socially unprotected (including pensioner), a geographically limited member of society, active in relation to the public life of the Omsk region, having broad interests, involved in physical education and sports not giving up under any circumstances. Common is the command of computer skills, the ability to navigate in a virtual environment or the awareness of the need to learn computer literacy. Common is the availability of computer skills, the ability to navigate in a virtual environment or the awareness of the need to acquire computer literacy.
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Waisberg, Ethan, Joshua Ong, Nasif Zaman, Sharif Amit Kamran, Andrew G. Lee, and Alireza Tavakkoli. "Head-Mounted Dynamic Visual Acuity for G-Transition Effects During Interplanetary Spaceflight: Technology Development and Results from an Early Validation Study." Aerospace Medicine and Human Performance 93, no. 11 (November 1, 2022): 800–805. http://dx.doi.org/10.3357/amhp.6092.2022.
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INTRODUCTION: Dynamic visual acuity (DVA) refers to the ability of the eye to discern detail in a moving object and plays an important role whenever rapid physical responses to environmental changes are required, such as while performing tasks onboard a space shuttle. A significant decrease in DVA has previously been noted after astronauts returned from long-duration spaceflight (0.75 eye chart lines, 24 h after returning from space). As part of a NASA-funded, head-mounted multimodal visual assessment system for monitoring vision changes in spaceflight, we elaborate upon the technical development and engineering of dynamic visual acuity assessments with virtual reality (VR) technology as the first step in assessing astronaut performance when undergoing G-transitional effects. We also report results from an early validation study comparing VR DVA assessment with traditional computer based DVA assessment.METHODS: Various VR/AR headsets have been utilized to implement DVA tests. These headsets include HTC Vive Pro Eye system. Epic’s game engine UnrealEngine 4 Version 4.24 was used to build the framework and SteamVR was used to experience virtual reality content. Eye tracking technology was used to maintain fixation of the participant. An early validation study with five participants was conducted comparing this technology versus traditional DVA with a laptop.RESULTS: The head-mounted technology developed for assessing DVA changes during G-transitions is fully functional. The results from the early validation study demonstrated that the two DVA tests (laptop-based and VR) indicated a strong association between both methods (Pearson correlation coefficient of 0.91). A Bland-Altman plot was employed to assess levels of agreement, with all data points falling within the limits of agreement.DISCUSSION: The results from this early validation study indicate that head-mounted DVA assessment performs similarly to traditional laptop-based methods and is a promising method for assessing DVA during spaceflight, particularly in G-transitions. Future studies are required for further assessment of validation and reliability of this technology. With its ease of use, accessibility, and portable design, VR DVA has the potential in the near-future to replace conventional methods of assessing DVA. The technology will likely be an important aspect to help monitor functionality and safety during interplanetary missions where astronauts are exposed to G-transitions.Waisberg E, Ong J, Zaman N, Kamran Sa, Lee AG, Tavakkoli A. Head-mounted dynamic visual acuity for G-transition effects during interplanetary spaceflight: technology development and results from an early validation study. Aerosp Med Hum Perform. 2022; 93(11):800–805.
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Koshkareva, Natalia V. "Synergism of Music and Word in Polyphonic Forms of Choral Works a Cappella by Modern Russian Composers." RUDN Journal of Language Studies, Semiotics and Semantics 13, no. 4 (December 27, 2022): 1110–21. http://dx.doi.org/10.22363/2313-2299-2022-13-4-1110-1121.
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The article is devoted to the consideration of a polyphonic choral composition as a polycode text, in which literary and musical texts as paralinguistic means contain heterogeneous information and add additional shades to the content of the score, i.e., the musical text as a whole. The novelty of the study lies in the fact that for the first time, synthesizing scientific achievements of linguistics and musicology, the polyphonic forms of a cappella choral works are analyzed as polycode texts. Due to the specifics of the choral art form as a musical and performing art, the nature of the perception of a musical text is multimodal. For performers who ‘decipher’ and ‘voice’ a musical notation, a musical text has one visual mode. For listeners, multimodality characterizes the practice of communication in terms of auditory, linguistic, spatial and visual resources, for example, the auditory mode when listening to a work without a visual range, or a polymodus complex when listening with a visual range. This refers to listening to music while simultaneously viewing the musical text of a work, observing the process of public performance, which in modern practice is often accompanied by a specially selected video sequence. The leading paradigm is the synergy of literary and textual sources and polyphonic form in works for a cappella choir by contemporary Russian composers. Based on the differentiation of the structure of a literary and textual source, the attribution of polyphonic forms of motet, madrigal, fugue and fugato is the subject of the work, while the goal is to form a research picture based on a close ‘polyphonic’ connection between word and music. In polyphonic analysis, it is important to determine the content of choral compositions and the composer’s method of dealing with the structure of a text source. A whole poem can be taken as the basis of a musical work (an example is the text-musical forms of motets and madrigals), one strophe, one line, one word (the analysis of fugato and fugue becomes the evidence base). An interesting case is the use as a text base of a polyphonic composition of individual syllables and phonemes (preludes and fugue-vocalizes) and a ‘silent’ performance - with a closed mouth. Thus, it is proved that the musical text is a complex multimodal complex in which the main information is conveyed by semiotically heterogeneous components. It is concluded that, on the one hand, a literary text influences the choice of a polyphonic form, on the other hand, it is often a static text that does not have an external plot development in the context of polyphonic dramaturgy and form and acquires internal dynamics of development to expand its semantic field.
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Raghavan, Ajay, and Carlos E. S. Cesnik. "3-D Elasticity-Based Modeling of Anisotropic Piezocomposite Transducers for Guided Wave Structural Health Monitoring." Journal of Vibration and Acoustics 129, no. 6 (February 8, 2007): 739–51. http://dx.doi.org/10.1115/1.2748776.
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Anisotropic piezocomposite transducers (APTs), such as macro fiber composites and active fiber composites, have great potential to be used as structurally integrated transducers for guided-wave (GW) structural health monitoring. Their main advantages over conventional monolithic piezoceramic wafer transducers are mechanical flexibility, curved surface conformability, power efficiency, their ability to excite focused GW fields, and their unidirectional sensing capability as a GW sensor. In this paper, models are developed to describe excitation of GW fields by APTs in isotropic structures. The configurations explored are plane Lamb-wave fields in beams with rectangular cross-section, axisymmetric GW fields in cylinders, and 3-D GW fields in plates. The dynamics of the substrate and transducer are assumed uncoupled. The actuator is modeled as causing shear traction at the edges of the actuator’s active area along the fiber direction. The sensor is modeled as sensing the average extensional strain over the active area along the fiber direction. The work is unique in that the formulation is based on 3-D elasticity, and no reduced-order structural assumptions are used. This is crucial to model multimodal GW propagation, especially at high frequencies. A formulation is also proposed to model the behavior of APTs as GW sensors. Finally, results from experimental tests to examine the validity of the models are discussed and the possible sources of error are examined in detail.
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Zhuang, Min, Jiahao Huang, and Chaohong Lee. "Entanglement-enhanced test proposal for local Lorentz-symmetry violation via spinor atoms." Quantum 6 (November 14, 2022): 859. http://dx.doi.org/10.22331/q-2022-11-14-859.
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Invariance under Lorentz transformations is fundamental to both the standard model and general relativity. Testing Lorentz-symmetry violation (LSV) via atomic systems attracts extensive interests in both theory and experiment. In several test proposals, the LSV violation effects are described as a local interaction and the corresponding test precision can asymptotically reach the Heisenberg limit via increasing quantum Fisher information (QFI), but the limited resolution of collective observables prevents the detection of large QFI. Here, we propose a multimode many-body quantum interferometry for testing the LSV parameter κ via an ensemble of spinor atoms. By employing an N-atom multimode GHZ state, the test precision can attain the Heisenberg limit Δκ∝1/(F2N) with the spin length F and the atom number N. We find a realistic observable (i.e. practical measurement process) to achieve the ultimate precision and analyze the LSV test via an experimentally accessible three-mode interferometry with Bose condensed spin-1 atoms for example. By selecting suitable input states and unitary recombination operation, the LSV parameter κ can be extracted via realizable population measurement. Especially, the measurement precision of the LSV parameter κ can beat the standard quantum limit and even approach the Heisenberg limit via spin mixing dynamics or driving through quantum phase transitions. Moreover, the scheme is robust against nonadiabatic effect and detection noise. Our test scheme may open up a feasible way for a drastic improvement of the LSV tests with atomic systems and provide an alternative application of multi-particle entangled states.
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Han, Yusheng. "Optimization and Simulation of Accounting Information Practice Model Assisted by Discrete Dynamic Events." Mathematical Problems in Engineering 2022 (May 21, 2022): 1–9. http://dx.doi.org/10.1155/2022/8208903.
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The performance function expressed by the expected value of the discrete event dynamic system usually does not have a closed analytical expression, so it can only be estimated by the Monte-Carlo method. The inherent limitations of the Monte-Carlo method (low simulation efficiency) and the complexity of the system bring a lot to the simulation optimization problem. A huge challenge has come. A reasonable combination of mathematical methods and computer simulation technology is an important direction to study the optimal design of DESD. On the basis of linear systems on maximal algebras, this article studies a class of multimodel systems on maximal algebras. This article presents a non-Markov DEDS time-synchronized parallel simulation algorithm and proves that the common random number method can maximize the simulation efficiency of an existing event-synchronized algorithm. We take advantage of the inherent parallelism of genetic algorithm, and combine the idea of parallel simulation and DEDS order optimization to give an optimization algorithm for discrete parameter space DEDS. This article discusses the relationship between ultimate control, internal control, and accounting information quality. This article analyzes the relationship between ultimate control right, internal control, and accounting information quality. We use the manipulated accruals calculated by the modified Jones model and the earnings response coefficient of the earnings-return model to measure the quality of accounting information, and analyze the impact of the ultimate control ratio and internal control level on the quality of accounting information. Based on the difference in the nature of the controller and the ratio of ultimate control rights, this article examines the difference in the effect of internal control on the quality of accounting information in companies with high and low ratios of ultimate control rights. The robustness tests of the two accounting information measurement models are carried out, respectively, and the results obtained are basically consistent with the empirical research conclusions. The situation is the most important to its own development. Among them, the asset turnover rate has a greater effect on the early warning of corporate financial crisis, and the status of the current asset turnover rate and the total asset turnover rate in the financial early warning is also crucial. This article studies the correlation between the overall level of internal control and the quality of accounting information, avoiding the one-sidedness caused by using a single index to measure the level of internal control.