Relevant bibliographies by topics / 49N90

Academic literature on the topic '49N90'

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Published: 13 July 2024

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Journal articles on the topic "49N90"

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Waibel, Astrid, and German J. Krieglsteiner. "Rezension von: Krieglsteiner, German J. (Hrsg.), Ständerpilze: Blätterpilze I ..." Schwäbische Heimat 54, no. 1 (April 21, 2023): 120–21. http://dx.doi.org/10.53458/sh.v54i1.6081.

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German J. Krieglsteiner (Hrsg.): Die Großpilze Baden-Württembergs, Band 3. Verlag Eugen Ulmer Stuttgart 2001. 634 Seiten mit 297 Farbfotos und 388 Verbreitungskarten. Gebunden € 49,90. ISBN 3-8001-3536-1Martin Nebel und Georg Philippi (Hrsg.): Die Moose Baden-Württembergs, Band 1. Verlag Eugen Ulmer Stuttgart 2000. 512 Seiten mit 153 Farbfotos und 295 Verbreitungskarten. Gebunden € 49,90. ISBN 3-8001-3527-2; Band 2, 2001: 529 Seiten mit 159 Farbfotos und 322 Verbreitungskarten. Gebunden € 49,90. ISBN 3-8001-3530-X
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Knödler, Stefan, and Bernhard Fischer. "Rezension von: Fischer, Bernhard, Johann Friedrich Cotta." Zeitschrift für Württembergische Landesgeschichte 75 (March 7, 2022): 502–4. http://dx.doi.org/10.53458/zwlg.v75i.2053.

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Langner, Bernd, and Wolfgang Pehnt. "Rezension von: Pehnt, Wolfgang, Deutsche Architektur seit 1900." Schwäbische Heimat 58, no. 4 (August 24, 2022): 480–81. http://dx.doi.org/10.53458/sh.v58i4.3737.

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Bidlingmaier, Rolf, and Julian Hanschke. "Rezension von: Julian Hanschke: Schloss Heidelberg. Architektur und Baugeschichte." Zeitschrift für Württembergische Landesgeschichte 78 (January 18, 2022): 467–69. http://dx.doi.org/10.53458/zwlg.v78i.1493.

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Julian Hanschke, Schloss Heidelberg. Architektur und Baugeschichte, Karlsruhe: Institut für Baugeschichte – Karlsruher Institut für Technologie 22016. 496 S. mit 551 Abb. ISBN 978-3-00-050927-8. € 49,90
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Steinbach, Peter, and Janosch Steuwer. "Rezension von: Steuwer, Janosch, „Ein Drittes Reich, wie ich es auffasse“." Zeitschrift für Württembergische Landesgeschichte 77 (February 17, 2022): 485–89. http://dx.doi.org/10.53458/zwlg.v77i.1786.

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Janosch Steuwer, „Ein Drittes Reich, wie ich es auffasse“. Politik, Gesellschaft und privates Leben in Tagebüchern 1933 – 1939, Göttingen: Wallstein Verlag 2017. 611 S. ISBN 978-3-8353-3003-0. Geb. € 49,90
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Krüger, Jürgen, and Ulrike Kalbaum. "Rezension von: Kalbaum, Ulrike, Romanische Türstürze und Tympana in Südwestdeutschland." Zeitschrift für Württembergische Landesgeschichte 72 (April 6, 2022): 568–69. http://dx.doi.org/10.53458/zwlg.v72i.2417.

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Ulrike Kalbaum: Romanische Türstürze und Tympana in Südwestdeutschland. Studien zu ihrer Form, Funktion und Ikonographie (Studien zur Kunst am Oberrhein, Band 5). Münster: Waxmann 2011. 575 S. ISBN 978-3-8309-2407-4. € 49,90
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Mseba, Admire. "Book Review: Femke Brandt and Grasian Mkodzongi (Eds.), Land Reform Revisited: Democracy, State Making and Agrarian Transformation in Post-Apartheid South Africa." Insight on Africa 11, no. 1 (January 2019): 131–34. http://dx.doi.org/10.1177/0975087818805885.

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Femke Brandt and Grasian Mkodzongi (Eds.), Land Reform Revisited: Democracy, State Making and Agrarian Transformation in Post-Apartheid South Africa. Leiden: Brill, 2018, pp. Iii + 288, ₹49.90/USD 59.00, Paperback, ISBN 978-90-04-36210-9.
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Walczak, Marcin. "Paul Copan – Ronald K. Tacelli (red.), Zmartwychwstanie Jezusa: fakt czy fikcja? Debata Williama Lane’a Craiga i Gerda Lüdemanna (Warszawa: Fundacja Prodoteo 2023)." Verbum Vitae 41, no. 4 (December 19, 2023): 1121–30. http://dx.doi.org/10.31743/vv.16356.

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Recenzja książki: Paul Copan – Ronald K. Tacelli (red.), Zmartwychwstanie Jezusa: fakt czy fikcja? Debata Williama Lane’a Craiga i Gerda Lüdemanna (tł. A. Czwojdrak; Warszawa: Fundacja Prodoteo 2023). Ss. 240. 49,90 PLN. ISBN: 978-83-67634-08-3.
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Langner, Bernd, and Gert Kähler. "Rezension von: Kähler, Gert (Hrsg.), Villen und Landhäuser des Kaiserreichs in Baden und Württemberg." Schwäbische Heimat 57, no. 3 (October 11, 2022): 351–52. http://dx.doi.org/10.53458/sh.v57i3.4112.

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Gert Kähler (Hrsg.): Villen und Landhäuser des Kaiserreichs in Baden und Württemberg. Mit Fotos von Erhard Hehl. Deutsche Verlagsanstalt München 2006. 272 Seiten mit über 300 Farbfotografien, historischen Fotos, Plänen und Skizzen. € 49,90. ISBN 3-421-05895-4
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Eberl, Immo, and Mario Müller. "Rezension von: Müller, Mario (Hrsg.), Kurfürst Albrecht Achilles (1414–1486)." Zeitschrift für Württembergische Landesgeschichte 75 (March 7, 2022): 492–94. http://dx.doi.org/10.53458/zwlg.v75i.2047.

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Mario Müller (Hg.), Kurfürst Albrecht Achilles (1414 – 1486), Kurfürst von Brandenburg, Burggraf von Nürnberg (Jahrbuch des Historischen Vereins für Mittelfranken, Bd. 102), Selbstverlag des Historischen Vereins für Mittelfranken Ansbach 2014. XIV, 713 S., 31 s/w Abb., 1 farb. Abb. € 49,90
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Dissertations / Theses on the topic "49N90"

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Oozeer, Muhammad Yaasiin. "On the occurrence and transport of biomass burning haze in south-southeast Asia using observation data and computational methods." Thesis, University of Nottingham, 2018. http://eprints.nottingham.ac.uk/49090/.

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Biomass-burning haze (BBH) is an environmental concern which has a tremendous impact on human health and the economy in Southeast Asia (SEA). One of the worst haze events to ever hit Peninsular Malaysia occurred in June 2013 due to smoke from Riau, Central Sumatra. While biomass-burning in the region is common, the early occurrence of a haze episode of this magnitude is uncharacteristic of the seasonality of extreme fire events which usually occur between August and October in the Maritime Continent (MC). Previous studies on the June 2013 event mostly include statistical studies of the impacts of haze on air quality and health. Therefore, this study aims to investigate the phenomenology of this peculiar haze event and its underlying meteorological forcing agents. The aerosol and meteorological environment during the event is examined using the Moderate Resolution Imaging Spectroradiometer (MODIS) active fire hotspot detections and aerosol optical thickness (AOT) retrievals, satellite based precipitation retrievals and meteorological indices. Particular attention is given to El Niño Southern Oscillation (ENSO) and Madden-Julian Oscillation (MJO) conditions since these phenomena influence inter-annual and intra-seasonal fire-activity, respectively, as well as the influence of tropical cyclones (TC) over the South China Sea. The above datasets are then supported by a WRF-Chem nested simulation to provide a comprehensive picture of the event’s meteorology and aerosol transport phenomenology. Indeed, while the use of weather models to study BBH has become more popular, more modelling efforts need to be put into studying the June 2013 haze event to identify the mechanisms of long range transport of haze. A set of 13 sensitivity simulations are run to determine the physics settings which best represent the meteorology over the model domain during the June 2013 haze episode. The physics options used in the sensitivity simulations are selected based on previous WRF physics sensitivity studies and work which include WRF simulations with domains over Asia and SEA. In particular, the microphysics, cumulus parameterisation and planetary boundary layer (PBL) schemes are looked into to obtain the best agreement to observation data. The output from the sensitivity simulations are evaluated with satellite based precipitation retrievals and ground station data over Malaysia. The simulations run with the Lin microphysics scheme, Betts-Miller-Janjić (BMJ) cumulus parameterisation scheme and Mellor-Yamada-Janjić (MYJ) planetary boundary layer scheme performed best overall. These best settings, based on the sensitivity studies, are then used in the numerical simulations which are evaluated with satellite and ground station data. The evaluation shows that model produces similar patterns and magnitudes of AOT and successfully captures the variations in smoke plume height when compared to MODIS AOD and Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) aerosol extinction profile datasets. The analysis of the time series ENSO conditions and MODIS fire count show that while extreme fire events are more characteristic of El Niño years, the MODIS fire count over the MC in June for the years 2001–2015 was highest in 2013 when neutral conditions prevailed. Although, the mean daily precipitation for June 2013 was below average for June for the years 2003–2015. In addition, the highest ratio of 0.89 of fire count for SPM to MC for any month for the period 2001–2015 was recorded in June 2013. An early and active TC season, which could have been the result of a strong transiting MJO, occurred in June 2013. The results show that the combined induced subsidence and flow enhancement due to TC Bebinca and the dry phases of the strong MJO event contributed to the event. The simulations further show that downward vertical motion of at least 6 cm s-1 prevailed over Sumatra on 22 June when TC Bebinca was most intense, while upward vertical motion reaching at least 9 cm s-1 prevailed over the same region before TC Bebinca on 17 June. Indeed, smoke sources were concentrated under this particular region of subsidence, where surface PM2.5 concentrations reached at least 1000 μg m-3 on 22 June. Vertical cross-sections across the model domain also show that subsidence during phase 6 of the MJO prevailed over Sumatra. Intense and early TC seasons over the Western North Pacific can therefore be an indication of the occurrence of early and extreme haze events over the MC. The numerical simulations are also used to study the convective mechanisms which are responsible for uplifting biomass-burning haze in the troposphere. These mechanisms over Sumatra and Peninsular Malaysia are under-studied and their physical mechanisms remain unclear. The PM2.5 mass concentration, vertical wind speed plots at different levels and vertical cross-sections of major smoke plumes are analysed and the corresponding convective mechanisms identified. Three main convective mechanisms are identified, namely, orographic motion over the Barisan Mountains of Indonesia, morning convergence over the strait of Malacca and orographic motion over Peninsular Malaysia. Results show that smoke is lifted to heights of at least 10 km in the atmosphere due to orographic lifting over Peninsular Malaysia while the average plume height increased to higher than 2 km as TC Bebinca subsided, due to the resulting decrease in subsidence. The identified mechanisms are able to uplift the biomass-burning emissions to the upper troposphere and this could have significant long-range transport and global climatic effects.
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Murphy, Linda Mary. "Reflection and the distance language learner." Thesis, Open University, 2002. http://oro.open.ac.uk/49390/.

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This research examines the role of critical reflection in learning theories and the relationship between Kolb's learning cycle and notions of the 'good' language learner, the deep approach to learning and autonomous learning in the context of adult, part-time, distance language learning. This group of learners is under-represented in the research literature. The research takes an exploratory-interpretative approach. Open University Language students had been invited by their tutors to use materials based on Kolb's learning cycle, designed to encourage critical reflection in order to enhance learning. In-depth interviews explored the experience of users and non-users. Course materials were examined for evidence of encouragement and support for critical reflection and autonomy. The research aimed to establish what OU language learners do to develop productive and receptive language skills and the extent to which they demonstrate capacities of critical reflection and autonomy. It examined the extent to which these capacities were developed via course materials and assignments and the impact of the style and pace of study. It considered whether these capacities could be enhanced by the project materials, as well as the influence of tutors' expectations and approaches. The majority of interviewees exhibited considerable functional activity except in writing skills. They demonstrated characteristics of the 'good' language learner, elements of a deep approach and features of autonomous learning. This contrasted with a surface approach to coursework and assignments, brought about by excessive workload and the controlled, anxiety-provoking nature of assessment. Analysis of assignments also suggested they were likely to evoke a surface approach. Course materials advocated reflection, self-assessment and self-evaluation, but did not support this via teaching or practice and offered few decision-making opportunities. Students exercised the capacity for critical reflection and autonomy to varying degrees. Those who had used the proj ect materials appeared more likely to make decisions about their learning, and set specific goals. The project materials were judged a straightforward framework for reflection. Tutors were positive about the materials but appeared to give little attention to critical reflection. Their concerns about time constraints and student workload may have confirmed student perceptions and discouraged use of the project materials. The research suggests broadening the notion of the 'good' language learner. It proposes more explicit development of learning strategies and the capacity for critical reflection within course materials and tutorials, and giving more attention to the nature and impact of assessment in order to foster 'active', deep, autonomous learning.
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Rumbelow, Judith. "Experiencing NVQs : a qualitative study of the experiences of secretarial/clerical staff at the Open University working on Customer Service NVQs." Thesis, Open University, 2005. http://oro.open.ac.uk/49290/.

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Pedrielli, Luca. "Oxymoron,progetto di un grattacielo direzionale a Shenzhen, Cina applicazione della Soft Kill Option (SKO) nella progettazione architettonica." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amslaurea.unibo.it/4990/.

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Lo scopo della tesi è quello di affrontare la progettazione con un approccio,quanto più attuale e per certi versi avanguardista, chiamato Parametric design (progettazione parametrica), accoppiato efficacemente col concetto di Arte generativa (in questo caso Architettura). Già nel 1957 Luigi Moretti affrontò il tema dell’architettura parametrico-generativa fondando l’IRMOU (Istituto per la Ricerca Matematica e Operativa applicata all'Urbanistica) e oggi è una mentalità molto diffusa nei più grandi studi del mondo. Il tema non è solo tecnologico o informatico strumentale, ma è proprio un modo di pensare e immaginare il possibile, costruito o naturale che sia. E’ un modo di vivere la propria creatività. L’aggettivo “generativa” è legato al fatto che l’arte in esame è generata seguendo regole preimpostate e ben definite dal progettista, coerentemente agli obiettivi e alle finalità del progetto. L’evoluzione delle stesse, seguendo relazioni molto semplici, può dar vita a risultati sorprendenti e inaspettati, dotati di una notevole complessità che però, se letta nell’insieme, è perfettamente in armonia con l’idea progettuale di partenza. Il fascino di questa materia è il legame entusiasmante che crea tra architettura, ingegneria, poesia, filosofia, matematica, biologia, fisica, pittura ecc ecc. Questo perché i concetti di evoluzione, di relazione e di generazione appartengono a tutto ciò che ci circonda, e quindi alla concezione umana di vita. E’ possibile in questo modo permeare il costrutto progettuale con principi e regole oggettivamente riconoscibili e apprezzabili dallo spettatore perché instrisi di una forte veridicità processuale. Il titolo "Oxymoron" è la traduzione inglese della figura retorica ossimoro,la quale è strettamente connessa all’ispirazione progettuale: proviene dall’indagine approfondita di processi evolutivi (distruttivi in questo caso) caratterizzanti realtà naturali che, esplorate con sempre più accuratezza, determinano morfologie e forme aventi profonde radici strutturali. La distruzione che crea lo spazio. La genesi stessa della forma segue predominanti algoritmi matematici governati e corretti da variabili di diversa natura che definiscono l'enviroment di influenze interagenti ed agenti sul campione di studio. In questo caso la ricerca è focalizzata su processi erosivi fisici e chimici, di agenti esterni (quali vento e sali rispettivamente) ,di cui materiali inorganici, quali minerali e aggregati degli stessi (rocce), sono soggetti. In particolare, l’interesse è approfondito su fenomeni apparentemente emergenti dei tafoni e dei cosiddetti Micro canyon. A tal scopo si sfrutterà un metodo di soft kill option (SKO) di ottimizzazione topologica (optimization topology) attraverso gli strumenti informatici più idonei quali software di modellazione parametrica e di calcolo computazionale. La sperimentazione sta proprio nell'utilizzare uno strumento concepito per uno scopo, con un'ottica strettamente ingegneristica, per un'altra meta, ossia ricavare e ottenere se possibile un metodo di lavoro o anche solo un processo generativo tale da riprodurre o simulare casi e situazioni riscontrabili in natura negli eventi soggetti a erosione. Il tutto coerente con le regole che stanno alla base della genesi degli stessi. Il parallelismo tra singolarità naturale e architettura risiede nella generazione degli spazi e nella combinazione di questi. L’ambizioso obiettivo è quello di innescare un ciclo generativo, che messo in comunicazione diretta con un contesto variegato ed eterogeneo, dia vita a una soluzione progettuale dall'alto contenuto morfologico e spaziale.
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Atueyi, Kene Chukwu. "Implementing management information systems in the National Health Service." Thesis, Sheffield Hallam University, 1991. http://shura.shu.ac.uk/4990/.

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As a discipline Management Information System (MIS) is relatively new. Its short history has been characterised with epistemological dialectism. The current conflict and debate about MIS inquiry is broadly between the advocates of the social systems and technical systems perspectives. Few authors have made positive contributions toward clarifying the meaning and nature of MIS, and the appropriate design framework for MIS development. This thesis adds to their effort by using a MIS designed and implemented through action research at the North Western Regional Health Authority. There are seven Chapters in this thesis. Chapters One and Two examine the nature of the problem addressed by this research; the project history, ontological assumptions and research strategy. Chapter Three examines the debate, nature and conflicting views about MIS. It defines the theoretical problem addressed by this thesis and proposes a new concept of MIS. The theoretical problems are dealt with in Chapter Four. In Chapter Five the application of the theoretical concepts developed in Chapter Four is demonstrated in the design of MIS. Chapter Six relates some of the findings of this thesis to the work of other authors. It also examines the problem of human inquiry and the suitability of action research for MIS research. The main findings of this research summarised in Chapter Seven provide a new perspective of MIS as a purposeful system; the taxonomy of purposeful systems; primary context and secondary context of MIS; context analysis and context evaluation of MIS.
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Jensen, Alexander Soenderup. "The struggle for language : John's Gospel as a witness to the development of the early Christian language of faith." Thesis, Durham University, 1997. http://etheses.dur.ac.uk/4990/.

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This thesis attempts to develop an approach to the New Testament which does justice to the New Testament as both sacred scripture of Christianity and historical human document. Based on the Lutheran and German Existentialist hermeneutical tradition language is viewed as the bearer of meaning rather than as a pointer to meaning which is to be found behind the text. This approach is relevant for the discussion of neo-Barthian as well as post-modem hermeneutics. It demands a consistent application of historical criticism, leading to a hermeneutical theology rather than the ruling of theology over against biblical interpretation. The first main part of the thesis is dedicated to the development of a theological theory of language. The thesis starts with an assessment of the Barth-Bultmann debate, where the underlying differences in their respective theories of language are analysed. It proceeds to a critical discussion of Rudolf Bultmann's hermeneutical theory, in the course of which Bultmann's theology and hermeneutics are identified as leading to a theocentric personalism. In addition, his hermeneutics are found to have important deficits in the underlying theory of language namely to ignore the role language plays as the bearer of meaning. In order to develop a theological theory of language which is based on the assumption that language is the bearer of meaning while avoiding Bultmann's shortcomings, the argument will follow the further development of existentialist hermeneutics and enter a discussion with the later Heidegger, Gadamer and Ricoeur. As a result, the concept of Christianity as Struggle for Language will be introduced. Here, Christianity and the New Testament in particular is understood as the continuing endeavour to translate the Christian kerygma so that it is meaningful in present discourse. The second part of the thesis is dedicated to the application of the main thesis to selected texts from John's Gospel, namely the hymn underlying the prologue John 1:1-18, the Nicodemus-discourse John 3:1-21 and the final prayer John 17.
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Baah, Emmanuel Mensah. "Analysis of data on spontaneous reports of adverse events associated with drugs." Thesis, University of Glasgow, 2014. http://theses.gla.ac.uk/4990/.

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Some adverse drug reactions (ADRs) are not detected before marketing approval is given because clinical trials are not suited for their detection, for various reasons [5, 23]. Drug regulatory bodies therefore weigh the potential benefits of a drug against the harms and allow drugs to be marketed if felt that the potential benefits far outweigh the harms [26,48]. Associated adverse events are subsequently monitored through various means including reports submitted by health professionals and the general public in what is commonly referred to as spontaneous reporting system (SRS) [19, 23, 69]. The resulting database contains thousands of adverse event reports which must be assessed by expert panels to see if they are bona fide adverse drug reactions, but which are not easy to manage by virtue of the volume [6]. This thesis documents work aimed at developing a statistical model for assisting in the identification of bona fide drug side-effects using data from the United States of America’s Food and Drugs Administration’s (FDA) Spontaneous Reporting System (otherwise known as the Adverse Event Reporting System (AERS)) [28]. Four hierarchical models based on the Conway-Maxwell-Poisson (CMP) distribution [43,78] were explored and one of them was identified as the most suitable for modeling the data. It compares favourably with the Gamma Poisson Shrinker (GPS) of DuMouchel [19] but takes a dimmer view of drug and adverse event pairs with very small observed and expected count than the GPS. Two results are presented in this thesis; the first one, from a preliminary analysis, presented in Chapter 2, shows that problems such as missing values for age and sex that militate against the optimal use of SRS data, enumerated in the literature, remain. The second results, presented in Chapter 5, concern the main focus of the research mentioned in the previous paragraph.
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Dagiloke, I. F. "Computer aided process parameter selection for high speed machining." Thesis, Liverpool John Moores University, 1995. http://researchonline.ljmu.ac.uk/4990/.

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Massari, Saverio Francesco <1980&gt. "La Comunità Energetica del Sud Est Europa quale fattore di stabilità nell’area Balcanica." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2012. http://amsdottorato.unibo.it/4990/.

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Il lavoro cerca di valutare il possibile ruolo della Comunità Energetica del Sud Est Europa quale fattore di stabilita’ nell’area Balcanica. Il Trattato fondativo della Comunita’ assegna a questa l’obiettivo di condurre una cooperazione in campo energetico al fine diffondere istituzioni e normative condivise, quali elementi di superamento del conflitto: tuttavia, sono molti gli ostacoli posti su questo cammino sia di natura interna alla regione che esterna, per l’influenza di fattori e poteri internazionali interessati all’area. Il processo di transizione in molti dei paesi del quadrante non e’ ancora concluso e molti sono i nodi politici successivi ai processi di disgregazione della Federazione Jugoslava ancora presenti e non risolti. I progetti di corridoi energetici portati avanti dall’Unione Europea, Stati Uniti e Russia, concentrano sui Balcani un interesse sempre alto e tali attenzioni potrebbero influire sui processi d’area e sulle scelte politiche da compiersi. Sullo sfondo di tutto cio’ un altro importante fattore contribuisce alle dinamiche in corso: la crisi economica ha fatto sentire la sua presenza anche nella regione balcanica e questo crea importanti squilibri che devono essere valutati alla luce di processi di cooperazione quale quello della Comunita’ Energetica.
The aim of my thesis is to evaluate the possible role of the Energy Community South East Europe as a factor of stability in the Balkans. The founding Treaty gives to the Community the goal to create and improve the cooperation in energy field to promote shared norms and institutions, as elements to overcome the conflict period: however, there are many obstacles on this path since domestic and external factors, due to the influence of international powers interested in the area. Many Countries in the region have not concluded the transition process yet and there are many political problems following the processes of disintegration of the Federal Republic of Yugoslavia. On the other hand, the European Union, United States and Russia, energy corridor projects planned in the region are focusing on the Balkans important interests on geo political point of view. These dynamics could affect the processes and policy choices in the area. The background of the whole scenario is another important factor that is contributing to the dynamics in progress: the economic crisis has shown its presence even in the Balkan region and this creates significant imbalances that need to be evaluated on the light of processes of cooperation such as the Energy Community .
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Pereira, Marlene Gomes. "Caracterização do óleo de sementes de maracujá doce (Passiflora alata Curtis) e de maracujá azedo (Passiflora edulis f. flavicarpa) obtido por diferentes métodos de extração." reponame:Repositório Institucional da UFPR, 2017. http://hdl.handle.net/1884/49390.

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Orientadora : Prof. Dr. Marcos L. Corazza
Coorientadora : Profª Drª Agnes de Paula Scheer
Tese (doutorado) - Universidade Federal do Paraná, Setor de Tecnologia, Programa de Pós-Graduação em Engenharia de Alimentos. Defesa: Curitiba, 25/08/2017
Inclui referências : f. 98-118
Resumo: No Brasil, parte da produção de maracujá cultivado sob o sistema orgânico é utilizado por algumas indústrias para a fabricação de sucos e geleias. Este processamento gera resíduos, como as sementes, que são subutilizadas. Devido ao interesse em identificar um melhor aproveitamento dessas sementes e da escassez de pesquisas sobre o uso do propano no estado subcrítico na extração de óleos de fontes vegetais, este estudo teve como objetivo avaliar o potencial da tecnologia subcrítica utilizando o propano comprimido na recuperação do óleo de sementes de maracujá doce (Passiflora alata Curtis) e de maracujá azedo (P. edulis f. flavicarpa) orgânicos e comparar os rendimentos e a qualidade dos óleos obtidos por essa tecnologia com as técnicas de extração em Soxhlet utilizando n-hexano e etanol como solventes e com a extração assistida por ultrassom utilizando etanol como solvente. A extração com propano comprimido foi realizada em escala piloto, nas seguintes combinações de pressão e temperatura: 2 MPa-30 °C, 2 MPa-60 °C e 8 MPa-30 °C, por 180 minutos. Testes preliminares foram feitos para identificar os parâmetros de processo que proporcionassem o maior rendimento para a extração assistida por ultrassom e os resultados indicaram a razão de semente:solvente (m/v) de 1:50 e a temperatura de 60 °C como sendo as melhores condições de processo. Foram obtidas imagens de microscopia eletrônica de varredura (MEV) das sementes antes e após os processos de extração. Foram realizadas análises para a caracterização físico-química, do perfil dos ácidos graxos, da estabilidade térmica, além da identificação de tocoferóis e da análise da atividade antioxidante e antimicrobiana dos óleos. Os maiores rendimentos foram de 28,33% e 26,12% para o óleo de sementes de maracujá doce e azedo orgânicos, respectivamente, utilizando a extração em Soxhlet com n-hexano. Entre as técnicas não convencionais, a extração com propano comprimido resultou nos maiores rendimentos, de 24,68% para o óleo de sementes de maracujá azedo orgânico obtido a 8 MPa e 30 °C e 23,68% para o óleo de sementes de maracujá doce orgânico obtido a 2 MPa e 60 °C. As imagens de MEV demonstraram o intenso efeito das extrações utilizando Soxhlet com n-hexano e com propano comprimido sobre as células oleosas das sementes, o que permitiu maior liberação de óleo dessas estruturas, resultando em alto rendimento de extração. As características físico-químicas dos óleos atendem a legislação vigente e são compatíveis com as de outros óleos vegetais comestíveis. Os óleos são ricos em ácidos graxos poli-insaturados, sendo o ácido linoleico predominante e presente em quantidade significativamente maior no maracujá doce (maior valor de 72,89%, obtido a 8 MPa-30 °C). As extrações com propano comprimido a 30 °C e pressão de 2 e 8 MPa proporcionaram porcentagens maiores de ácidos graxos poli-insaturados nos óleos em relação aos outros métodos. Foram identificados os homólogos ?-, ?- e ?-tocoferol em todos os óleos estudados. Os óleos apresentaram alta estabilidade térmica até 300 °C. Todos os óleos apresentaram atividade antioxidante bem como inibiram o crescimento dos microrganismos Escherichia coli, Salmonella enteritidis, Staphylococcus aureus e Bacillus cereus. Palavras-chave: Extração subcrítica. Propano comprimido. Extração assistida por ultrassom. Semente de maracujá. Passiflora alata Curtis. Cultivo orgânico.
Abstract: In Brazil, part of the passion fruit cultivated under the organic system is used by some industries to manufacture juices and jellies. This processing generates residues, such as seeds, which are underutilized. Due to the interest in identify a better use of these seeds and the scarce researches on the use of compressed (subcritical) propane in the extraction of oils from vegetable sources, the aim of this study was to evaluate the potentialities of subcritical compressed propane technology to recover the oil from sweet (Passiflora alata Curtis) and yellow (P. edulis f. flavicarpa) passion fruit seeds and compare the results with Soxhlet extraction method using n-hexane and ethanol as solvents and ultrasound-assisted extraction using ethanol as solvent. The extraction with compressed propane was conducted in pilot scale in the following pressures and temperatures combination: 2 MPa-30 °C, 2 MPa-60 °C and 8 MPa-30 °C, for 180 minutes. Preliminary tests were done to identify process parameters that provided the highest yield for ultrasound-assisted extraction and the results indicated the ratio of 1:50 (seed:solvent; m/v) and the temperature of 60 °C as the best process conditions. Scanning electron microscopy (SEM) images were obtained from seeds before and after extraction processes. Analysis were carried out to identify the physico-chemical characterization, fatty acid profile, thermal stability, tocopherol content, antioxidant and antimicrobial activity of the oils. The higher extraction yields were of 28.33% and 26.12% to the oils of organic P. alata and P. edulis, respectively, using Soxhlet extraction method with n-hexane. Among the unconventional techniques, extraction with compressed propane resulted in the highest yields, with 24.68% at 8 MPa-30 °C (organic P. edulis seed oil) and 23.68% at 2 MPa-60 °C (organic P. alata Curtis seed oil). SEM images demonstrated the intense effect of extractions using Soxhlet with n-hexane and with compressed propane on the oil-bearing cells of the seeds, which allowed greater oil release from these structures, resulting in high extraction yield. Regarding the physico-chemical characteristics of the oils, the results comply with the current legislation and are compatible with those of edible vegetable oils. The oils are rich in polyunsaturated fatty acids, with linoleic acid being predominant and present in significantly greater amounts in sweet passion fruit seed oil (higher value of 72.88% obtained at 8 MPa and 30 °C). The extraction with compressed propane at 30 °C and 2 and 8 MPa provided higher percentage of unsaturated fatty acids than other methods. The homologues ?-, ?- and ?-tocopherol were identified in all the oils studied. The oils presented high thermal stability up to 300 °C. All the oils presented antioxidant activity as well as inhibited the growth of the microorganisms Escherichia coli, Salmonella enteritidis, Staphylococcus aureus and Bacillus cereus. Keywords: Subcritical fluid extraction. Compressed propane. Ultrasound-assisted extraction. Passion fruit seed. Passiflora alata Curtis. Organic farming.
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Books on the topic "49N90"

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United States. Congress. House. Committee on Rules. Providing for the consideration of H.R. 4990: Report (to accompany H. Res. 447). [Washington, D.C.?: U.S. G.P.O., 1992.

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United States. Congress. House. Committee on Appropriations. Rescinding certain budget authority, and for other purposes: Report (to accompany H.R. 4990). [Washington, D.C.?: U.S. G.P.O., 1992.

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Congress, U. S. Rescinding certain budget authority, and for other purposes: Conference report (to accompany H.R. 4990). [Washington, D.C.?: U.S. G.P.O., 1992.

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Palang, Hannes, Helen Sooväli, and Anu Printsmann, eds. Seasonal Landscapes. Dordrecht: Springer Netherlands, 2007. http://dx.doi.org/10.1007/1-4020-4990-0.

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Gaïti, Dominique, ed. Network Control and Engineering for QoS, Security and Mobility, IV. Boston, MA: Springer US, 2007. http://dx.doi.org/10.1007/978-0-387-49690-0.

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Cánovas, Francisco M., Ulrich Lüttge, and Rainer Matyssek, eds. Progress in Botany Vol. 78. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-49490-6.

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Mertins, Hans-Christoph, and Markus Gilbert. Prüfungstrainer Experimentalphysik. Berlin, Heidelberg: Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-49690-9.

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Fischlin, Marc, and Jean-Sébastien Coron, eds. Advances in Cryptology – EUROCRYPT 2016. Berlin, Heidelberg: Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-49890-3.

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Nicolson, Donald J. Academic Conferences as Neoliberal Commodities. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-49190-5.

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Maglogiannis, Ilias, Lazaros Iliadis, and Elias Pimenidis, eds. Artificial Intelligence Applications and Innovations. AIAI 2020 IFIP WG 12.5 International Workshops. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-49190-1.

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Book chapters on the topic "49N90"

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Claval, Paul, and Inès Aguiar de Freitas. "Seasonality in Brazil: Rain, Mud and Drought." In Seasonal Landscapes, 61–83. Dordrecht: Springer Netherlands, 2007. http://dx.doi.org/10.1007/1-4020-4990-0_3.

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Nicolson, Donald J. "Welcome." In Academic Conferences as Neoliberal Commodities, 1–9. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-49190-5_1.

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Nicolson, Donald J. "Opening Keynote." In Academic Conferences as Neoliberal Commodities, 11–20. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-49190-5_2.

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Nicolson, Donald J. "Parallel Session One: Case Studies." In Academic Conferences as Neoliberal Commodities, 21–35. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-49190-5_3.

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Nicolson, Donald J. "Parallel Session Two: Interviews." In Academic Conferences as Neoliberal Commodities, 37–58. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-49190-5_4.

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Nicolson, Donald J. "Closing Keynote." In Academic Conferences as Neoliberal Commodities, 59–66. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-49190-5_5.

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Nicolson, Donald J. "Conference Abstract Book." In Academic Conferences as Neoliberal Commodities, 67–68. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-49190-5_6.

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Theodoropoulou, Eleni, Ioanna Mesogiti, George Lyberopoulos, George Kalfas, Christos Vagionas, Nikos Pleros, Annachiara Pagano, et al. "A Framework to Support the 5G Densification." In Artificial Intelligence Applications and Innovations. AIAI 2020 IFIP WG 12.5 International Workshops, 3–14. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-49190-1_1.

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Kostopoulos, Alexandros, Ioannis P. Chochliouros, Constantinos Patsakis, Miltos Anastasiadis, and Alessandro Guarino. "Protocol Deployment for Employing Honeypot-as-a-Service." In Artificial Intelligence Applications and Innovations. AIAI 2020 IFIP WG 12.5 International Workshops, 105–15. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-49190-1_10.

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Mavroeidakos, Theodoros, and Vasilis Chaldeakis. "Threat Landscape of Next Generation IoT-Enabled Smart Grids." In Artificial Intelligence Applications and Innovations. AIAI 2020 IFIP WG 12.5 International Workshops, 116–27. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-49190-1_11.

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Conference papers on the topic "49N90"

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Cho, Min Soon, Hernan G. Vasquez, Hee Dong Han, Sunila Pradeep, Rajesh Rupaimoole, Behrouz Zand, Michael Kroll, Anil K. Sood, and Vahid Afshar-Kharghan. "Abstract 4990: Complement promotes growth of ovarian cancer." In Proceedings: AACR 104th Annual Meeting 2013; Apr 6-10, 2013; Washington, DC. American Association for Cancer Research, 2013. http://dx.doi.org/10.1158/1538-7445.am2013-4990.

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Ganesh, Karuna, Harihar Basnet, Kevin P. O'Rourke, Ashley M. Laughney, Lan He, Eduard Batlle, Scott W. Lowe, Dana Pe'er, Jinru Shia, and Joan Massague. "Abstract 4990: Regenerative origin of colorectal metastasis stem cells." In Proceedings: AACR Annual Meeting 2018; April 14-18, 2018; Chicago, IL. American Association for Cancer Research, 2018. http://dx.doi.org/10.1158/1538-7445.am2018-4990.

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Acilar, Ali, and Øystein Sæbø. "Why do Students not Choose to Study Information Systems? A Survey Study in Norway." In InSITE 2022: Informing Science + IT Education Conferences. Informing Science Institute, 2022. http://dx.doi.org/10.28945/4990.

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Aim/Purpose: The aim of this study is to explore why students do not choose to study In-formation Systems. Background Demand for information technology (IT) and information systems (IS) employees and managers has been increased, with the widespread use of information technologies. IT skills shortage is a concern for industries and higher education institutions. The findings of this study can help understanding why students do not choose to study Information Systems. Methodology: This study used an online survey for data collection. The survey link was emailed to 609 undergraduate students at the University of Agder in Kristian-sand, Norway. 62 useable responses were used for analysis. Descriptive statistics, chi-square test, and t-test were used for data analysis. Contribution: This study provides the results of a survey exploring why students do not choose to study Information Systems at a Norwegian university. Findings: The most indicated reason by the respondents for not choosing to study Information Systems was “little or no knowledge about IS”, followed by “lack of interest in the IS field.” Job availability was identified as the most motivating factor for the participant students in choosing to study their pro-grams at the university. The participants of this study did not consider In-formation Systems as easy to study. Recommendations for Practitioners: Candidate students should be given sufficient information about Information Systems study program and how it differs from other IT-related study pro-grams should be explained well. There is a need to better promote Information Systems study programs to candidate students. Future Research: Future studies should explore the factors impacting enrolment to Information Systems study programs with larger sample sizes and in different universities. Qualitative studies can help a deeper understanding of students’ career decisions. Future studies can also consider comparative studies in different countries.
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Chen, Chen, Keith Lovegrove, H. Pirouz Kavehpour, and Adrienne S. Lavine. "Design of an Ammonia Synthesis System for Producing Supercritical Steam in the Context of Thermochemical Energy Storage." In ASME 2015 Power Conference collocated with the ASME 2015 9th International Conference on Energy Sustainability, the ASME 2015 13th International Conference on Fuel Cell Science, Engineering and Technology, and the ASME 2015 Nuclear Forum. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/power2015-49190.

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Concentrating solar power plants typically incorporate thermal energy storage, e.g. molten salt tanks. The broad category of thermochemical energy storage, in which energy is stored in chemical bonds, has the advantage of higher energy density as compared to sensible energy storage. In the ammonia-based thermal energy storage system, ammonia is dissociated endothermically as it absorbs solar energy during the daytime. The stored energy can be released on demand (for electricity generation) when the supercritical hydrogen and nitrogen react exothermically to synthesize ammonia. Using ammonia as a thermochemical storage system was validated at Australian National University (ANU), but ammonia synthesis has not yet been shown to reach temperatures consistent with the highest performance modern power blocks such as a supercritical steam Rankine cycle requiring steam to be heated to ∼650°C. This paper explores the preliminary design of an ammonia synthesis system that is intended to heat steam from 350°C to 650°C under pressure of 26 MPa. A two-dimensional pseudo-homogeneous model for packed bed reactors previously used at ANU is adopted to simulate the ammonia synthesis reactor. The reaction kinetics are modeled using the Temkin-Pyzhev reaction rate equation. The model is extended by accounting for convection in the steam to predict the behavior of the proposed synthesis reactor. A parametric investigation is performed and the results show that heat transfer plays the predominant role in improving reactor performance.
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Gouttebroze, C., F. Louf, and L. Champaney. "Reduced Models for the Active Vibration Control of Light Structures." In ASME 2008 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/detc2008-49090.

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The vibration control of mechanical structures is an important issue for the preservation of their structural integrity, especially in the case of light structures such as electronic cards aboard flying vehicles. One of the most effective methods in this domain is active vibration control, which requires an observation of the structure and an adequate command. Therefore, one must use a satisfactory numerical model of the structure. One way of achieving such a model consists in improving a given initial model. The governing principle of the updating method used in this paper, based on the modified constitutive relation error principle [1, 2], consists in dividing the equations of the problem into two groups: a reliable group and an unreliable group. Then, among the mechanical fields which verify the equations of the reliable group exactly, one seeks the field which minimizes a norm containing the residuals of the unreliable group and some distance between the observed experimental data and the numerical results. Like many other widely used updating techniques [3, 4], this is an optimization-based method whose objective function has a very high calculation cost. In-flight updating requires rapid calculations; therefore, the cost function must be approximated. In order to do that, we use vector spaces over a field of truncated rational functions of multiple variables. Tensor manipulations on such vector spaces lead to very-low-cost, rational objective functions. Furthermore, this technique enables one to calculate the gradient and higher-order derivatives of the cost function very inexpensively, leading to very efficient minimization algorithms. In this paper, we illustrate the method by updating a beam. This is a simple problem, but one which is representative of the updating of electronic cards. The beam is instrumented with piezoelectric sensors and actuators, which are taken into account in the numerical model. The experimental data are simulated by applying perturbations to the stiffness, damping and/or mass parameters in the beam itself, in the piezoelectric components or at the boundaries.
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Achiche, Sofiane, and Saeema Ahmed. "Mapping Shape Geometry and Emotions Using Fuzzy Logic." In ASME 2008 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/detc2008-49290.

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An important aspect of artifact/product design is defining the aesthetic and emotional value. The success of a product is not only dependent on it’s functionality but also on the emotional value that it creates to its user. However, if several designers are faced with a task to create an object that would evoke a certain emotion (aggressive, soft, heavy, friendly, etc.) each would most likely interpret the emotion with a different set of geometric features and shapes. In this paper the authors propose an approach to formalize the relationship between geometric information of a 3D object and the intended emotion using fuzzy logic. To achieve this; 3D objects (shapes) created by design engineering students to match a set of words/emotions were analyzed. The authors identified geometric information as inputs of the fuzzy model and developed a set of fuzzy if/then rules to map the relationships between the fuzzy sets on each input premise and the output premise. In our case the output premise of the fuzzy logic model is the level of belonging to the design context (emotion). An evaluation of how users perceived the shapes was conducted to validate the fuzzy logic model and showed a high correlation between the fuzzy logic model and user perception.
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Siddique, Zahed, and Rajeshwar Reddy Adupala. "Evaluation of Product Family Architectures From Multiple Perspectives." In ASME 2008 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/detc2008-49590.

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Specifying components in a product platform and family architecture to support product varieties can be a challenging task for companies. Especially when various viewpoints have to be considered, which include product variety, materials, manufacturing complexity, assembly complexity, average component count commonality, assembly sequence, and late point differentiation. In order to identify or select a product platform and family configuration, evaluation of alternative configurations need to be performed. In this paper several product family evaluation criteria are presented for configuration evaluation. The application of product family configuration evaluation and a design approach is demonstrated using a Computer Mouse family.
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Mendrok, Krzysztof, Piotr Kurowski, and Tadeusz Uhl. "Operational Forces Identification From Helicopter Model In-Flight Data With Use of Inverted Regressive Parametric Models." In ASME 2008 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/detc2008-49790.

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The paper presents an attempt to identify forces acting on the control unit of a helicopter model during flight. The helicopter model will, according to the project assumptions, operate as an inspection robot i.e. it will autonomously fly in selected regions and monitor them with an embedded camera. It could be used for visual inspection of high masts or chimneys. Autonomous flying requires a sophisticated control system. The control unit is placed in an additional box hung under the fuselage. One of the stages of the unit development was examination of in-flight forces acting on the box and if it was necessary, a vibroinsulation selection. For this reason, an experiment was conducted. During the test, forces in the box suspension and accelerations in selected locations of the object were recorded. Having both, forces and responses in the form of vibrations accelerations, enabled to verify a force identification procedure. It is a procedure based on regressive parametric models inversion. The paper presents this method’s description and an attempt to apply it to the described forces identification.
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Rodriguez-Leal, Ernesto, Jian S. Dai, and Gordon R. Pennock. "A Centralized 5-RSP Parallel Mechanism." In ASME 2008 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/detc2008-49890.

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This paper presents a new class of parallel mechanism which is constructed with a 5-limb RSP architecture. To provide insight into the geometry and the position analysis of this mechanism, the paper presents closed-form solutions to the inverse and forward kinematic problems. Then the Kutzbach mobility criterion is used to show that the platform of the 5-RSP mechanism has a single degree of freedom. A mobility analysis based on the reciprocal constraint and motion sets of screws shows that the platform exhibits a screw motion, that is, a translation along and a rotation about the screw axis. The ratio of the translation to the rotation (referred to as the instantaneous pitch of the screw) is shown to be a function of the platform position. The screw axis is perpendicular to the base of the mechanism for all positions of the platform and passes through the centroids of the base and the platform. The attractive features of centralization are the simple design, and the wide range of possibilities for the pitch of the screw motion of the platform. Finally, the paper presents geometrical conditions that result in the pure translation of the platform; i.e., the rotational degree-of-freedom is eliminated.
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Pinnell, Margaret, Rebecca Blust, Jayne Brahler, and Margy Stevens. "Making Connections Between Service and Engineering in K-12 Education." In ASME 2008 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/detc2008-49990.

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This paper will summarize the findings obtained through the work of a National Science Foundation (NSF) sponsored grant entitled, “Making Connections: Resources for K-12 Service-learning and Experiential Learning in STEM Disciplines.” The objective of this grant was to encourage K-12 educators to incorporate service-learning into the science and math curriculum by providing an easy-to-use resource. It was hoped that the use of service-learning in the science and math curriculum would help promote the entry of women and minorities into the Science, Technology, Engineering and Mathematics (STEM) fields, increase the potential pool of engineers and scientists in the United States, contribute to the development of STEM educators and enhance cultural sensitivity, ethics and social responsibility in future STEM workers. The methodology used to develop, assess and refine the web based resource will be discussed. Additionally, the research design and inferential statistics used to assess the impact of service-learning on K-12 students’ perceptions of STEM careers will be presented.
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