Relevant bibliographies by topics / LD. Computers

Academic literature on the topic 'LD. Computers'

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Published: 10 March 2023

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Journal articles on the topic "LD. Computers"

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Feller, Sebastian. "Recent developments in HCI." Language and Dialogue 2, no. 3 (December 14, 2012): 465–78. http://dx.doi.org/10.1075/ld.2.3.08fel.

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In this article I critically discuss four studies in the area of Human–Computer Interaction (HCI) research. The focus is on distinct dimensions of culture including both verbal and para-verbal behavior in communication. My discussion is grounded in Weigand’s (2010) theory of dialogic action games (DAG), a pragma-linguistic theory which is based on a view of language as language action. The main question is whether or not the presented research leads in a direction towards making computers believable dialog partners.
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Torgesen, Joseph K., and Theodore A. Barker. "Computers as Aids in the Prevention and Remediation of Reading Disabilities." Learning Disability Quarterly 18, no. 2 (May 1995): 76–87. http://dx.doi.org/10.2307/1511196.

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This article provides examples of ways that computer-assisted instruction can help children with learning disabilities (LD) learn to read more effectively. Computer-assisted instruction and practice in reading is fit within an instructional model for LD children that recognizes their special needs for assistance in acquiring accurate and fluent word identification skills. The theory that reading disabilities are phonologically based is discussed as a context for focusing instruction on alphabetic reading skills. Computer programs that provide training in phonological awareness, specific context-free word identification skills, and reading of connected text are described, and preliminary evidence about their instructional effectiveness is presented.
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Berninger, Virginia W., Robert D. Abbott, Amy Augsburger, and Noelia Garcia. "Comparison of Pen and Keyboard Transcription Modes in Children with and without Learning Disabilities." Learning Disability Quarterly 32, no. 3 (August 2009): 123–41. http://dx.doi.org/10.2307/27740364.

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Fourth graders with learning disabilities in transcription (handwriting and spelling), LD-TD, and without LD-TD (non-LD), were compared on three writing tasks (letters, sentences, and essays), which differed by level of language, when writing by pen and by keyboard. The two groups did not differ significantly in Verbal IQ but did in handwriting, spelling, and composing achievement. Although LD-TD and non-LD groups did not differ in total time for producing letters by pen or keyboard, both groups took longer to compose sentences and essays by keyboard than by pen. Students in both groups tended to show the same pattern of results for amount written as a larger sample of typically developing fourth graders who composed longer essays by pen. Results for that sample, which also included typically developing second and sixth graders, showed that effects of transcription mode vary with level of language and within level of language by grade level for letters and sentences. However, consistently from second to fourth to sixth grade, children wrote longer essays with faster word production rate by pen than by keyboard. In addition, fourth and sixth graders wrote more complete sentences when writing by pen than by keyboard, and this relative advantage for sentence composing in text was not affected by spelling ability. Implications of the results for using computers for accommodations or specialized instruction for students with LD-TD are discussed.
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ITO, N., and G. A. KOHRING. "CLUSTER VS. SINGLE-SPIN ALGORITHMS—WHICH ARE MORE EFFICIENT?" International Journal of Modern Physics C 05, no. 01 (February 1994): 1–14. http://dx.doi.org/10.1142/s0129183194000027.

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A comparison between single-cluster and single-spin algorithms is made for the Ising model in 2 and 3 dimensions. We compare the amount of computer time needed to achieve a given level of statistical accuracy, rather than the speed in terms of site updates per second or the dynamical critical exponents. Our main result is that the cluster algorithms become more efficient when the system size, Ld, exceeds, L~70–300 for d=2 and l~80–200 for d=3. The exact value of the crossover is dependent upon the computer being used. The lower end of the crossover range is typical of workstations while the higher end is typical of vector computers. Hence, even for workstations, the system sizes needed for efficient use of the cluster algorithm is relatively large.
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Scherer Bassani, Patrícia, Carla Reis, and Pedro Henrique Petry de Faria. "Ambientes colaborativos para a produção e o compartilhamento de atividades de aprendizagem: análise dos ambientes WebCollage, LDshake e ILDE." RENOTE 17, no. 3 (January 13, 2020): 1–10. http://dx.doi.org/10.22456/1679-1916.99232.

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Learning Design (LD) ou Design da Aprendizagem é uma área de pesquisa que tem por objetivo tornar mais explícito o processo de desenvolvimento de atividades de aprendizagem com o uso de tecnologias digitais, fomentando o uso de estratégias e de ferramentas para o registro e o compartilhamento dessas atividades. Este estudo, de abordagem qualitativa, teve como objetivo analisar ferramentas para representar e compartilhar atividades de aprendizagem. A pesquisa foi organizada em duas etapas: a) revisão de literatura, para identificar ambientes citados em artigos científicos publicados no periódico Computers & Education entre 2010-2019; b) a análise desses ambientes por meio da observação on-line. Resultados mostram que WebCollage e LDShake foram os ambientes mais citados. Entretanto, eles foram integrados a uma plataforma completa chamada Integrated Learning Design Environment (ILDE).
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Lee, Bae-Kyu. "Multi-channel LD - Driver designed for CTP(computer to plate)." Journal of the Korea Institute of Information and Communication Engineering 19, no. 3 (March 31, 2015): 667–73. http://dx.doi.org/10.6109/jkiice.2015.19.3.667.

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Bayneva, Irina I., and Nikolay E. Vorozheikin. "Features of Computer Design of LED Optical Systems." Light & Engineering, no. 03-2022 (June 2022): 69–74. http://dx.doi.org/10.33383/2022-026.

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The paper considers the problems of computer simulation of modern lighting devices (LD) based on light emitting diodes (LED) and their optical systems (OS). LED OS provides developers with sufficient opportunities to implement a variety of problems of modern lighting. In the market of competing products, it is often necessary to calculate and manufacture LED optics for specific lighting problems, the main of which is the formation of a given distribution of illuminance over the surface of an object. It is shown that the most demanded services in LED lighting engineering are the development of LED optics according to the customer’s specifications, lighting engineering testing of a modelled product, development of 3D models for further production. The main stage in the context of such design is the calculation and simulation of the OS. The results of this process are basically determined by the complex of luminous, thermal, and functional characteristics of LD. The development of modern LED LD is inseparably linked with the use of specialized software. Modern technologies and approaches, CASE-tools in the design of the LD, the main requirements for the LD models, integrated complex AllFusion Modelling Suite are considered. Functional diagrams of the process of designing the LD have been developed. 3D models of single and block lenses and reflectors of various designs have been developed in the computer-aided design system KOMPAS‑3D. For given LED properties, selected materials, and ray tracing conditions the light distribution of LED modules was obtained and analysed in TracePro software. Acceptable results have been obtained, that is why this approach can be recommended for prototyping and studying the characteristics of experimental samples of LED modules and LD.
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Li, Qin, Fu Bao Li, and Zhong Ke Li. "Study on Centering Technology of Two Large-Scale Rotating Machinery Coupling Shaft Axis." Advanced Materials Research 550-553 (July 2012): 3108–12. http://dx.doi.org/10.4028/www.scientific.net/amr.550-553.3108.

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This paper studies the centering accuracy of two large-scale rotating machinery coupling shaft. Laser LD and position sensitive sensors PSD are used to measure and adjust the centering of two shaft coupling, through the analysis of LD-double-PSD-angle prism, LD-double-PSD-plane mirror of the double LD-double-PSD, dual-LD-double PSD centering program, it established a double LD-double -PSD system mathematical model, and the computer simulations to get good results. Based on the theoretical results, the two axes large-scale rotating machinery LD-link LD-double-PSD centering system has been studied and designed.
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Lundin, Barbro. "Dialogue features in football articles over a period of fifty years." Language and Dialogue 3, no. 3 (November 22, 2013): 403–21. http://dx.doi.org/10.1075/ld.3.3.04lun.

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In this diachronic study of dialogic features in football, articles from three different sports events have been focused: The World Cups 1958, 1974 and the Euro Cup 2004. This period of almost 50 years distinguishes itself as a time period when new channels for communication have emerged: television, Internet, computer-mediated communication. This has made it possible to bridge the gulf between the communicators. Dialogue features such as questions, directives, addressing the readers with you (second person singular) and using an inclusive we are numerous in the football articles studied. The articles show an increasing tendency to address the readers with you in the articles from Euro 2004. Moreover, the sports writers refer to given responses from readers in the articles from 2004.
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Loughlin, J. F., P. M. Krijnen, G. Jablonsky, F. Y. Leung, and A. R. Henderson. "Diagnostic efficiency of four lactate dehydrogenase isoenzyme-1 ratios in serum after myocardial infarction." Clinical Chemistry 34, no. 10 (October 1, 1988): 1960–65. http://dx.doi.org/10.1093/clinchem/34.10.1960.

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Abstract We compared the diagnostic efficacy of the ratios LD-1/LD-2, LD-1/LD-3, LD-1/LD-4, and LD-1/LD-5 in 69 documented cases of myocardial infarction. We used 149 patients with congestive heart failure and 67 patients with nonmyocardial infarct as controls. We used a computer program to produce receiver-operating characteristic curves, decision threshold plots, and likelihood ratios for these LD ratios at 6-h intervals up to 108 h after the onset of chest pain or hospital admission. All ratios in the myocardial infarction cases peaked around 36 h after the onset of chest pain, while those for the nonmyocardial and congestive cardiac failure cases did not change over the 108-h period. In all patients with infarctions, LD-1/LD-4 and LD-1/LD-5 increased by 1.7 times (when LD-1 was less than 40%) and 3.4 times (when LD-1 was greater than 40%), respectively, over control values. Optimum decision threshold values were obtained at 13-24 h (LD-1/LD-5), 31-36 h (LD-1/LD-4 and LD-1/LD-3), and 55-60 h (LD-1/LD-2) after onset of symptoms. The highest likelihood ratio was obtained with the LD-1/LD-4 ratio; therefore, we suggest that this is a better diagnostic test for myocardial infarction than LD-1/LD-2.
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Dissertations / Theses on the topic "LD. Computers"

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Ordentlich, Erik. "Low delay-code excited linear predictive (LD-CELP) coding of wide band speech at 32kbits/sec." Thesis, Massachusetts Institute of Technology, 1990. http://hdl.handle.net/1721.1/14029.

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Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1990.
Includes bibliographical references (leaves 131-132).
by Erik Ordentlich.
M.S.
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Luo, Yi. "Ultra-Wideband Transceiver with Error Correction for Cortical Interfaces in NanometerCMOS Process." DigitalCommons@USU, 2017. https://digitalcommons.usu.edu/etd/5859.

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This dissertation reports a high-speed wideband wireless transmission solution for the tight power constraints of cortical interface application. The proposed system deploysImpulse Radio Ultra-wideband (IR-UWB) technique to achieve very high-rate communication. However, impulse radio signals suffer from significant attenuation within the body,and power limitations force the use of very low-power receiver circuits which introduce additional noise and jitter. Moreover, the coils’ self-resonance has to be suppressed to minimize the pulse distortion and inter-symbol interference, adding significant attenuation. To compensate these losses, an Error correction code (ECC) layer is added for functioning reliably to the system. The performance evaluation is made by modeling a pair of physically fabricated coils, and the results show that the ECC is essential to obtain the system’s reliability. Furthermore, the gm/ID methodology, which is based on the complete exploration ofall inversion regions that the transistors are biased, is studied and explored for optimizingthe system at the circuit-level. Specific focuses are on the RF blocks: the low noise am-plifier (LNA) and the injection-locked voltage controlled oscillator (IL-VCO). Through the analytical deduction of the circuit’s features as the function of the gm/ID for each transistor, it is possible to select the optimum operating region for the circuit to achieve the target specification. Other circuit blocks, including the phase shifter, frequency divider,mixer, etc. are also described and analyzed. The prototype is fabricated in a 65-nm CMOS(Complementary Metal-Oxide-Semiconductor) process.
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Rarivomanana, Jens A. "Système CADOC : génération fonctionnelle de test pour les circuits complexes." Phd thesis, Grenoble INPG, 1985. http://tel.archives-ouvertes.fr/tel-00319028.

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Le système CADOC est un outil de conception assisté pour circuits VLSI, basé sur le langage CADOC-LD. Présentation du langage CADOC-LD en tenant compte de l'étude du langage de description de matériel CHDL. Application à partir du langage CADOC-LD basée sur les techniques d'exécution symbolique temporisée et de l'intelligence artificielle
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Al-Hasani, Firas Ali Jawad. "Multiple Constant Multiplication Optimization Using Common Subexpression Elimination and Redundant Numbers." Thesis, University of Canterbury. Electrical and Computer Engineering, 2014. http://hdl.handle.net/10092/9054.

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The multiple constant multiplication (MCM) operation is a fundamental operation in digital signal processing (DSP) and digital image processing (DIP). Examples of the MCM are in finite impulse response (FIR) and infinite impulse response (IIR) filters, matrix multiplication, and transforms. The aim of this work is minimizing the complexity of the MCM operation using common subexpression elimination (CSE) technique and redundant number representations. The CSE technique searches and eliminates common digit patterns (subexpressions) among MCM coefficients. More common subexpressions can be found by representing the MCM coefficients using redundant number representations. A CSE algorithm is proposed that works on a type of redundant numbers called the zero-dominant set (ZDS). The ZDS is an extension over the representations of minimum number of non-zero digits called minimum Hamming weight (MHW). Using the ZDS improves CSE algorithms' performance as compared with using the MHW representations. The disadvantage of using the ZDS is it increases the possibility of overlapping patterns (digit collisions). In this case, one or more digits are shared between a number of patterns. Eliminating a pattern results in losing other patterns because of eliminating the common digits. A pattern preservation algorithm (PPA) is developed to resolve the overlapping patterns in the representations. A tree and graph encoders are proposed to generate a larger space of number representations. The algorithms generate redundant representations of a value for a given digit set, radix, and wordlength. The tree encoder is modified to search for common subexpressions simultaneously with generating of the representation tree. A complexity measure is proposed to compare between the subexpressions at each node. The algorithm terminates generating the rest of the representation tree when it finds subexpressions with maximum sharing. This reduces the search space while minimizes the hardware complexity. A combinatoric model of the MCM problem is proposed in this work. The model is obtained by enumerating all the possible solutions of the MCM that resemble a graph called the demand graph. Arc routing on this graph gives the solutions of the MCM problem. A similar arc routing is found in the capacitated arc routing such as the winter salting problem. Ant colony optimization (ACO) meta-heuristics is proposed to traverse the demand graph. The ACO is simulated on a PC using Python programming language. This is to verify the model correctness and the work of the ACO. A parallel simulation of the ACO is carried out on a multi-core super computer using C++ boost graph library.
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Tahamtan, Iman. "A qualitative study on the use of personal digital assistants and smartphones among interns and residents of Hazrat Rasool Akram and Imam-Khomeini hospitals." Thesis, 2011. http://eprints.rclis.org/19843/1/expliring%20pda%20usage.pdf.

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Introduction Handheld computers such as Personal Digital Assistants (PDAs) and smartphones are playing an increasing role to improve healthcare services by making information available at the point of care. The aim of the present study was to investigate how medical interns and residents retrieve information when using handheld devices. Furthermore, This study investigates the benefits and barriers of using handheld computers in clinical activities, and factors affecting adoption handheld computers among medical interns and residents. Methodology We conducted this qualitative study, using a semi-structured interview protocol. We selected the subjects of the study, using the purposive snowball sampling method. We carried out in-depth interviews with 21 medical interns and residents from May through September 2011. NVivo Software was use to codify and analyze the data. Findings Participants usually used PDAs and smartphones for web search, personal information management and communication in daily activities. They also used handheld computers for searching medical databases and drug references, reading electronic books and web search. Participants believed that usefulness, ease of use, education, organizational factors, individual features, social influences, observability, compatibility and job characteristics were the main factors affecting the adoption of these devices in medical settings. It was found that the most important benefits of using handheld computers included easy access and instant delivery of health information, medical errors reduction, access to evidence based and up-to-date medical information, portability, improving clinical decision makings and treatment quality. Three limitation categories of usage were also identified upon data analysis: Limitations related to handheld computers, individual barriers, and external limitations. Conclusion Significant development and effective changes are taking place in the field of medicine by the emergence of handheld computers in clinical settings; but in developing countries like Iran it is in its childhood period and needs more attention. It is important to use supportive tools like mobile technologies in healthcare organizations for better patient care. Healthcare managers and policy makers can use findings of current study for a better integration of handheld computers in medical settings. They can apply encouraging factors in hospitals, medical centers and clinics to make mobile technologies as popular devices among healthcare professionals.
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Hassan-Montero, Yusef. "Visualización de Información Persona-Ordenador: Propuesta algorítmica para la ordenación espacial de grafos." Thesis, 2010. http://eprints.rclis.org/3789/1/tesis_yusef_hassan.pdf.

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El presente trabajo afronta la problemática del acceso a la información tomando como objeto de estudio una de sus formas: la visualización mediada por interfaces gráficas. Para ello se aproxima un marco teórico para el análisis del factor humano en visualización de información, tomando como contexto disciplinar la Interacción Persona-Ordenador; se propone un marco metodológico general para el diseño y evaluación de interfaces gráficas de visualización; y se propone y evalúa un procedimiento algorítmico para la ordenación espacial de grafos. Los experimentos realizados demuestran que el procedimiento algorítmico propuesto es el que mejor relación eficacia-eficiencia presenta de entre los comparados, y confirman la influencia que en la usabilidad visual de la representación tienen los criterios heurísticos empleados en su evaluación.
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Barrios, Bernal Carmen Sofía. "Estudio de necesidades de información de los estudiantes de bachillerato (jornada mañana) del Colegio Técnico Palermo respecto a la biblioteca institucional." Thesis, 2017. http://eprints.rclis.org/31043/1/Tesis%20-%20Carmen%20Sofia%20Barrios%20.pdf.

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The research addresses a study of the information needs of high school students (day tomorrow) of the Technical College of Palermo. To achieve this, the theoretical concepts of the school library were approached from the UNESCO / IFLA manifestation for the school library, the possibility of characterizing the school library from history, function, services and others. Likewise, the state of the art of the publications of the studies of the school libraries in Colombia and Latin America was identified, thanks to the revision it has been possible to identify methodologies of this type of studies that served as reference of the investigation. Subsequently, from the theoretical framework of the user studies it was possible to model the methodology of the research. Finally, after the implementation of the users' study, an analysis of the results was carried out to characterize the information needs of high school students, based on this information, the conclusions and recommendations were presented where the proposals for the Strengthening of information services of the library using information and communication technologies (ICT).
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Vassallo, Salvatore. "Frammenti semantici. Riflessioni su descrizioni archivistiche e web semantico: Il caso dell’archivio Giovanni Testori." Thesis, 2010. http://eprints.rclis.org/17365/1/tesisolofronte.pdf.

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This doctoral thesis is about the possibility to put archival data (for example archival descriptions, authority records and so on) directly into semantic web, particularly using a technology called “Topic Maps”. Topic Maps are an ISO standard quite similar to RDF. To show that it's possible to express archival data directly into semantic web, I translated all archival standards (such ISAD, ISAAR, ISDIAH, ISDF) into Topic Maps Constraint Language schemas. TMCL is a standard of the Topic Maps family. What it's important is that you can declare constraints and inference rules to ensure that a topic map holding archival data is compliant to archival standards. So, once shown that is possible expressing archival data into semantic web, which is the main advantage? I think that we can find three advantages in this approach: you can build flexible and extensible information systems you can create import and export as linked data you can merge data of different areas (for example you can merge archival authority records and librarian authority records) For that aim I also created crosswalks between different standards. For example I mapped FRAD with ISAAR. For import and export I created some XSL-T stylesheets to convert EAC and EAD to Topic Maps and I released them as opensource on google code. Lastly I proposed a strong idea to develop flexible information systems (for example a software to manage a digital library or an archival information system such the archival system for national archives). In those systems data wouldn't be stored in a database, but directly in RDF triples or, why not, in a topic map. This allows to extend or change the system without a database change (so you can add or change a descriptive field without touch the database).
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Books on the topic "LD. Computers"

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The Icelandic Language In The Digital Age Slensk Tunga Stafrnni Ld. Springer, 2012.

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Book chapters on the topic "LD. Computers"

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Berlanga, Adriana J., Francisco J. García, and Jorge Carabias. "Authoring Adaptive Learning Designs Using IMS LD." In Lecture Notes in Computer Science, 31–40. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/11768012_5.

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König, Florian, and Alexandros Paramythis. "Adaptive Collaboration Scripting with IMS LD." In Intelligent Adaptation and Personalization Techniques in Computer-Supported Collaborative Learning, 47–84. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-28586-8_3.

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Jurado, Francisco, Miguel A. Redondo, and Manuel Ortega. "Specifying Collaborative Tasks of a CSCL Environment with IMS-LD." In Lecture Notes in Computer Science, 311–17. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/11863649_38.

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Li, Jing-quan, Da-chuan Chen, Jing-yuan Shi, and Si-ming He. "LD-Pumped Nd: YAG All-Solid-State Blue Laser." In Recent Advances in Computer Science and Information Engineering, 641–46. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-25778-0_90.

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Derntl, Michael, Petru Nicolaescu, Bezunesh Terkik, and Ralf Klamma. "SynC-LD: Synchronous Collaborative IMS Learning Design Authoring on the Web." In Lecture Notes in Computer Science, 540–43. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-40814-4_53.

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Bernstein, Abraham. "Semantic Web/LD at a Crossroads: Into the Garbage Can or To Theory?" In Lecture Notes in Computer Science, 1. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-30284-8_1.

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Mihindukulasooriya, Nandana, Raúl García-Castro, and Asunción Gómez-Pérez. "LD Sniffer: A Quality Assessment Tool for Measuring the Accessibility of Linked Data." In Lecture Notes in Computer Science, 149–52. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-58694-6_20.

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El Faddouli, Nour-eddine, Brahim El Falaki, Mohammed Khalidi Idrissi, and Samir Bennani. "Design an Adaptive Competency-Based Learning Web Service According to IMS-LD Standard." In Communications in Computer and Information Science, 37–47. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-27337-7_5.

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Car, Nicholas J., Alex Ip, and Kelsey Druken. "netCDF-LD SKOS: Demonstrating Linked Data Vocabulary Use Within netCDF-Compliant Files." In Environmental Software Systems. Computer Science for Environmental Protection, 329–37. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-89935-0_27.

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Magnisalis, Ioannis, and Stavros Demetriadis. "Extending IMS-LD Capabilities: A Review, a Proposed Framework and Implementation Cases." In Intelligent Adaptation and Personalization Techniques in Computer-Supported Collaborative Learning, 85–108. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-28586-8_4.

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Conference papers on the topic "LD. Computers"

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Wen, Weidong, Zhonglu Wang, Jianbo Liu, Chen Chen, and Ni Li. "LD-Parser." In ISCSIC 2019: 2019 3rd International Symposium on Computer Science and Intelligent Control. New York, NY, USA: ACM, 2019. http://dx.doi.org/10.1145/3386164.3389101.

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Vaduva, Janalexandru, Raduemanuel Chiscariu, Ioana Culic, Iuliamaria Florea, and Razvan Rughinis. "ADREM: SYSTEM CALL BASED INTRUSION DETECTION FRAMEWORK." In eLSE 2019. Carol I National Defence University Publishing House, 2019. http://dx.doi.org/10.12753/2066-026x-19-021.

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We are living in an era where computers govern the educational process. The market is flooded with puzzles, games, quizzes or other kinds of applications destined to help teachers explain different concepts and to enable students to practice their skills and test the knowledge. For all these systems, be them computers, server or embedded devices, the internet connection is the essential aspect. As a result, we have children and students working with devices that are exposed to the highest degree of security issues and threats. Attacks are continuously evolving, becoming more flexible, adaptable and hard to detect, and leaving children and students vulnerable to malicious software that can either collect sensitive information about them or expose them to inappropriate content. Because of this, it is only natural that security solutions became of significant importance for the tech educational industry. Computers, servers and embedded devices are exposed to the highest degree of security issues and threats since the internet became an essential need. Attacks are continuously evolving, becoming more flexible, adaptable and hard to detect. This made only natural the shift towards adaptive security oriented solutions. One of the security those solutions is represented by anomaly based intrusion detection techniques. Anomaly based intrusion detection systems build a baseline of normal behavior. For a Linux based operating system, which represents a great percent of the platforms used in education, this is accomplished by monitoring a given process or sets of processes. Any significant deviation from the baseline model is flagged as malicious activity. This paper proposes a framework for intrusion detection using system call traces captured from services running on a container. The work done is based on The Australian Defence Force Academy Linux Dataset, more well-known as ADFA-LD. The analysis is done taking into consideration the temporal allocation of the system calls. The classification module is based on supervised machine learning techniques. To test the accuracy of the framework, a case study involving a database application running under a Linux container is analyzed. The results together with the proposed framework implementation are described in details.
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Elsayed, Kareem Ibrahim, and Mohamed Shaheen Elgamel. "Web of Things Interoperability Using JSON-LD." In 2020 30th International Conference on Computer Theory and Applications (ICCTA). IEEE, 2020. http://dx.doi.org/10.1109/iccta52020.2020.9477674.

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Chen, Hailin, Zuping Zhang, and Jing Xia. "A hybrid algorithm for LD tagSNPs selection." In 2012 7th International Conference on Computer Science & Education (ICCSE 2012). IEEE, 2012. http://dx.doi.org/10.1109/iccse.2012.6295284.

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Marino, Marco, Silvio Del Giudice, Fabio Chiappa, and Giuseppe Giunta. "Advanced Leak Detection Applications for Pipeline Integrity Management Using Vibroacoustic Technology." In ADIPEC. SPE, 2022. http://dx.doi.org/10.2118/210951-ms.

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Abstract The paper addresses the integrity monitoring of critical infrastructures as fluid filled transportation pipelines by developing a pilot full scale application of Advanced Leak Detection (ALD) monitoring system. The objective of the ALD system is to improve performances with respect to single separate LD system, in different scenarios in terms of sensitivity, localization accuracy, and robustness. Three Leak Detection methods have been evaluated which rely on different physical principles, though independent, and could interact with one another through cross-links data at core level. The Advanced Leak Detection system has been developed over an already existing technological platform based on vibroacoustic sensing, which includes flowmeters, pressure sensors, and accelerometers using acquisition units distributed along the pipeline routing, and processing computers with software suite. Leak Detection sub-systems are based on i) Advanced Negative Pressure Wave for detection and localization of fluid transients; ii) RTTM-Compensated Mass Balance for detection of imbalance in the fluid mass transportation; iii) Acoustic Noise for detection and localization of existing or slow-opening leaks. The integration of different Leak Detection sub-systems can take place at various levels: cross-check of measurements, cross-link of computed fluid-dynamic quantities, merge of alarms associated to the same physical event. The Advanced Leak Detection pilot system has been deployed and validated on liquid fuel transportation pipeline 40 km long, managed by Eni SpA in North Italy. Several controlled spill-tests (i.e., with distinct size, area, shape), including spillages simulating both short-duration and slow-opening cracks, have been performed in both pumping and shut-in operational conditions to calibrate the ALD system and to assess the performances. The amount of spilled product has been measured for each test by means of a calibrated weight scale. The ALD system proved to be able to detect and localize both quick and slow-opening leaks with a good sensitivity, specificity, and precision. In addition, Leak Detection alarms contain estimates of outflow rate and hole size: accuracy and alarm response time are assessed in the paper. In conclusion, the ALD system has been validated on fuel transportation pipeline by Eni as compliant with the technical requirements and is currently deployed in operations. The novelty of the pilot ALD system lies in the integration of Leak Detection methods at the core level, that allow to exchange information, calibration and synergically contribute to provide robust, sensitive, accurate and informative Leak Detection alarms.
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Li, Jingquan, Jingyuan Shi, Changli Qiu, Wei Quan, and Siming He. "LD Longitudinally Pumped Nd:YAG 946nm Lasers Optimization Analysis." In 2nd International Conference on Computer and Information Applications (ICCIA 2012). Paris, France: Atlantis Press, 2012. http://dx.doi.org/10.2991/iccia.2012.192.

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Cheney, Drew A., and Jennifer R. Lukes. "Comparison of Atomistic and Continuum Methods for Calculating Ballistic Phonon Transmission in Nanoscale Waveguides." In ASME 2012 Third International Conference on Micro/Nanoscale Heat and Mass Transfer. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/mnhmt2012-75264.

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We compare two methods for the calculation of mode dependent ballistic phonon transmission in nanoscale waveguides. The first method is based on continuum acoustic waveguide theory and uses an eigenmode expansion to solve for phonon transmission coefficients. The second method is an atomistic, lattice dynamics (LD)-molecular dynamics (MD) hybrid that uses LD computed mode shapes to excite guided phonon wavepackets in a nonequilibrium MD simulation and calculates phonon transmission from the final distribution of system energy. The two methods are compared for a planar waveguide with a t-stub irregularity, a geometry which has been proposed for the tuning of phonon transmission and nanostructure thermal conductance. Our comparison highlights advantages and disadvantages of the two methods and illustrates regimes when atomistic effects are prominent and continuum approaches are not appropriate.
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Sun, Zongjian, Tomasz Jannson, Joe Ingold, and Joe Oleksa. "Inter-LAN WDM single-fiber bridge for multimedia communication." In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1991. http://dx.doi.org/10.1364/oam.1991.thmm8.

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We propose a novel inter-Lan communication architecture based on multi-mode fiber optics and wavelength division multiplexers (WDMs), in the form of an inter-Lan WDM single-fiber bridge for multi-media communication. The new passive fiber optic system consists of a pair of multi-mode WDMs connected through (1–10 km) multi-mode (62.5/125 µm) single fiber with multiwavelength (3–6) multi-longitudinal mode (MLM) and single-longitudinal mode (SLM) laser diodes (LDs), and avalanche photodiode (APD) receivers. It has been demonstrated that the speed of the MLM-LD 780 nm channel is limited only by the fiber’s multi-mode dispersion (~500 MHz • 1 km). Thus, it can be used for RGB-video transmission. For example, while the SLM-LD channels (750 nm, 810 nm, 840 nm) are used for voice, computer data, and sensor-reporting systems, respectively, because of the APD receivers, the power margin is extended by at least 10 dB. This provides a higher bandwidth and longer distance communication than currently available fiber optic multi-mode links. In this communication, we present experimental results demonstrating transmission capabilities of the WDM system. An inter-Lan medium distance (1–10 km) WDM (wavelength division multiplexing) multimode (62.5/125 µm) (RGB-video, voice, computer-data. sensor-data) single-fiber bridge multimedia communication system is presented.
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Dadkhah, Mahboubeh, Mohsen Kahani, Samad Paydar, and Behshid Behkamal. "Extending FUM-LD framework by including an academic data model." In 2011 International eConference on Computer and Knowledge Engineering (ICCKE). IEEE, 2011. http://dx.doi.org/10.1109/iccke.2011.6413361.

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Wu, Caixia, Bo Pang, Wang Qiushi, and Yizhuo Zhang. "The experimental study on 808nm LD end-pumped Nd:YVO4 laser." In 2016 International Symposium on Advances in Electrical, Electronics and Computer Engineering. Paris, France: Atlantis Press, 2016. http://dx.doi.org/10.2991/isaeece-16.2016.18.

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Reports on the topic "LD. Computers"

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Nelson, Gena, Angela Crawford, and Jessica Hunt. A Systematic Review of Research Syntheses for Students with Mathematics Learning Disabilities and Difficulties. Boise State University, Albertsons Library, January 2022. http://dx.doi.org/10.18122/sped.143.boisestate.

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The purpose of this document is to provide readers with the coding protocol that authors used to code 36 research syntheses (including meta-analyses, evidence-based reviews, and quantitative systematic reviews) focused on mathematics interventions for students with learning disabilities (LD), mathematics learning disabilities (MLD), and mathematics difficulties (MD). The purpose of the systematic review of mathematics intervention syntheses was to identify patterns and gaps in content areas, instructional strategies, effect sizes, and definitions of LD, MLD, and MD. We searched the literature for research syntheses published between 2000 and 2020 and used rigorous inclusion criteria in our literature review process. We evaluated 36 syntheses that included 836 studies with 32,495 participants. We coded each synthesis for variables across seven categories including: publication codes (authors, year, journal), inclusion and exclusion criteria, content area focus, instructional strategy focus, sample size, methodological information, and results. The mean interrater reliability across all codes using this coding protocol was 90.3%. Although each synthesis stated a focus on LD, MLD, or MD, very few students with LD or MLD were included, and authors’ operational definitions of disability and risk varied. Syntheses predominantly focused on word problem solving, fractions, computer- assisted learning, and schema-based instruction. Syntheses reported wide variation in effectiveness, content areas, and instructional strategies. Finally, our results indicate the majority of syntheses report achievement outcomes, but very few syntheses report on other outcomes (e.g., social validity, strategy use). We discuss how the results of this comprehensive review can guide researchers in expanding the knowledge base on mathematics interventions. The systematic review that results from this coding process is accepted for publication and in press at Learning Disabilities Research and Practice.
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