Tesis sobre el tema "VLRE"
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Hillen, Francis. "Improved method for VLE data reduction". Thesis, University of Strathclyde, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.248601.
Texto completoBharadwaj, Hari Krishna. "CO2 Separation Using Regenerable Magnesium Solutions Dissolution, Kinectics and VLSE Studies". University of Cincinnati / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1352485483.
Texto completoSaraiva, Catarina Ribeiro. "VLE and activity coefficients of ionic liquids + water systems". Master's thesis, Universidade de Aveiro, 2014. http://hdl.handle.net/10773/14508.
Texto completoThe industrial progress is a phenomenon more and more present worldwide, where it is possible to observe an increasing demand for innovation, which therefore results in competitiveness and growth. A consequence of this innovation is the discovery of a novel type of compounds such as: the ionic liquids. These have attracted a high interest in the recent years due to its characteristics, namely: low vapour pressure, good thermal stability, etc. This new class of compounds has a large range of applications, for instance in cooling absorption. The industrial application of ionic liquids (ILs) requires the knowledge of their termophysical properties, their phase behaviour and of their mixtures. This work addresses the study of those thermodynamic properties of water + ionic liquids systems using the state equation soft-SAFT EoS, the ILs under study are: 1-butyl-3-methyli midazolium trifluoromethanesulfunate, 1-butyl-3-methylimidazolium tosylate, 1-butyl-3-methylimidazolium trifluoroacetate, 1-butyl-3-ethylimidazolium methanesulfunate, 1-butyl-3-methylimidazolium bromide, 1-butyl-3-methylimidazolium chloride and 1-butyl-3-methylimidazolium thiocyanate. This work also addresses the description of water activities in ionic liquids. The study began by starting to define the appropriate association scheme of each ionic liquid, then molecular parameters for each compound were regressed using density data at atmospheric pressure, always trying to find the parameter set with the lowest error in the density description. Then it was initiated the vapour-liquid equilibria study of binary systems composed by water + ionic liquid, this study was made for seven mixtures, composed by the ILs previous mentioned and for three different pressure values, namely : 0.1 MPa, 0.07 MPa and 0.05 MPa. Finally, it was started the water activities coefficients study, of the seven systems in order to select the best pair water + IL that best satisfies the application referred above.
A evolução industrial é um fenómeno cada vez mais presente a nível mundial, onde se observa uma elevada procura pela inovação, que se traduz em competitividade e em crescimento. Uma consequência desta inovação está relacionada com a descoberta de um novo tipo de compostos: os líquidos iónicos. Estes têm despertado um elevado interesse nos últimos anos devido às suas características, nomeadamente, baixa pressão de vapor, boa estabilidade térmica etc. Esta nova classe de compostos tem uma vasta gama de aplicações, como por exemplo na área de absorventes para refrigeração. A aplicação industrial dos líquidos iónicos requer o conhecimento das suas propriedades termofísicas e do comportamento do seu equilíbrio de fases. Este trabalho foca-se, pela primeira vez, no estudo dessas propriedades termodinâmicas de sistemas líquidos iónicos (ILs) + água com a equação de estado soft-SAFT (Statistical Associating Fluid Theory). Os ILs em estudo são: trifluorometanosulfonato de 1-butil-3-metilimidazólio, tiocianato de 1-butil-3-metilimidazólio, trifluoroacetato de 1-butil-3-metilimidazólio, metanosulfanato de 1-butil-3-metilimidazólio, cloreto de 1-butil-3-metilimidazólio, brometo de 1-butil-3-metilimidazólio e tiocianato de 1-butil-3-metilimidazólio. Neste estudo começou-se por definir esquemas associativos apropriados para cada um dos líquidos iónicos, de seguida com base nos esquemas atribuídos e utilizando dados de densidade à pressão atmosférica otimizaram-se os parâmetros moleculares característicos a cada composto, com o menor erro possível na descrição da densidade. De seguida passou-se ao estudo do equilíbrio líquido-vapor de sistemas binários compostos por água + líquido iónico, este estudo foi efetuado para sete misturas, compostas pelos ILs anteriormente apresentados e para 3 valores de pressão distintos, nomeadamente: 0.01 MPa, 0.07 MPa e 0.05 MPa. Por fim, passou-se ao estudo dos coeficientes de atividade da água de cada uma das misturas de forma a selecionar o sistema água + IL que melhor satisfaça as exigências da aplicação inicialmente referida.
Nosbisch, Leanna Kei De Silva Aravinda Manu. "Antigenic variation at the vlsE locus of the lyme disease spirochete, Borrelia burgdorferi". Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2006. http://dc.lib.unc.edu/u?/etd,522.
Texto completoTitle from electronic title page (viewed Oct. 10, 2007). "... in partial fulfillment of the requirements for the degree of Master of Science in the Department of Microbiology and Immunology." Discipline: Microbiology and Immunology; Department/School: Medicine.
Aldaej, Abdulaziz A. "An enhanced semantic VLE based on schema.org and social media". Thesis, University of Surrey, 2015. http://epubs.surrey.ac.uk/807070/.
Texto completoStamoulos, Marios Nikolaos. "Provision of better VLE learner support with a Question Answering System". Thesis, University of Sunderland, 2016. http://sure.sunderland.ac.uk/6818/.
Texto completoWindarp, Josefin. "Usability and learning potential of virtual learning environments which applies spaced repetition : A case study on sharplet.com". Thesis, KTH, Skolan för teknikvetenskaplig kommunikation och lärande (ECE), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-179138.
Texto completoPossani, Luiz Felipe Kusler. "Correlação simultânea de IDAC, VLE e LLE com o modelo F-SAC". reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2014. http://hdl.handle.net/10183/107500.
Texto completoIn this work, the F-SAC model (Functional -Segment Activity Coefficient) has been revised and extended in order to simultaneously represent activity coefficient at infinite dilution (IDAC), liquid-liquid equilibrium (LLE) and vapor-liquid equilibrium (VLE), in a wide range of temperature. Originally, the F- SAC model was calibrated essentially with IDAC experimental data for several mixtures. In the present work, the possibility of also taking into account LLE was investigated. For this study, two sets of industrially interesting mixtures were selected : hydrocarbons (alkanes, cycloalkanes, alkenes, cycloalkenes and aromatics) + n-formylmorpholine (NFM) and hydrocarbons + water. Modifications were suggested in the equation that computes the interaction energy for each contact between two segments: (i) inspired by the typical behavior observed in the isobaric expansion of liquids, a new parameter has been proposed in order to reduce the (small) systematic error with the temperature for non-associating systems; (ii) for associating mixtures, a similar equation was proposed to represent the temperature dependence of the hydrogen bond energy between two segments. In the parameterization of the model, 1130 LLE experimental points were used, for 105 binary and 16 ternary systems, along with 815 IDAC experimental points, resulting in a new parameter table. A total of 42 parameters for groups and subgroups were calibrated. The F-SAC results were compared, whenever possible, with different versions of the UNIFAC model, freely available in the literature. The proposed model was able to correlate most of the IDAC and LLE data. For IDAC data, absolute average deviations were 0.139 and 0.608 ln units using F-SAC and UNIFAC(PSRK), respectively. Similar deviations were observed for LLE data. Finally, F-SAC was used to represent VLE data for aromatics + NFM systems. The absolute relative deviations were 0.038 and 0.082 in the bubble pressure calculations for F-SAC and UNIFAC(PSRK), respectively. The VLE results indicate a strong predictive ability of the suggested model, since no VLE data was used in the parameter estimation procedure. The results also indicate that the F-SAC model can be used to represent, simultaneously, IDAC, LLE and VLE for associating and non-associating mixtures, with a single set of parameters.
Bin, Fryan Latefa. "Good practice framework for virtual learning environment in higher education". Thesis, Brunel University, 2015. http://bura.brunel.ac.uk/handle/2438/13812.
Texto completoAbus, Eren Deniz. "3D Structural and Geophysical Investigation of the Vlore-Elbasan Tectonic Lineament in the Albanide Orogenic Belt, Albania". Miami University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=miami1432140759.
Texto completoGuerra, André. "Modeling Mild Thermal Cracking of Heavy Crude Oil and Bitumen with VLE Calculations". Thesis, Université d'Ottawa / University of Ottawa, 2018. http://hdl.handle.net/10393/38003.
Texto completoNagel, Felicitas. "Charakterisierung der zellulären und humoralen Immunantwort auf VlsE im Vergleich zu anderen Borrelienproteinen bei Kindern mit Lyme-Borreliose". Diss., lmu, 2006. http://nbn-resolving.de/urn:nbn:de:bvb:19-59495.
Texto completoGreenwood, Stephen Richard. "Learning out of the box : perceptions and use of a VLE at an HE institution". Thesis, University of Bristol, 2005. http://hdl.handle.net/1983/84f59394-9134-4115-952a-5b90c20bbc41.
Texto completoSubramanian, Shanthi Sridhar. "An Extended Iterative Location Management Schema for Load-Balancing in a Cellular Network". Digital Archive @ GSU, 2005. http://digitalarchive.gsu.edu/cs_theses/6.
Texto completoChoi, Byeonggoo. "Eocene tectonic controls on reservoir distribution in VLE 196, Block V, Lamar Field, Maracaibo Basin, Venezuela". Texas A&M University, 2005. http://hdl.handle.net/1969.1/4426.
Texto completoMcEnery, Michael. "Emerging practices in a post primary school : challenges and opportunities when working with a Virtual Learning Environment (VLE)". Thesis, Queen's University Belfast, 2015. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.680436.
Texto completoFerreira, Jerino Queiroz. "Ambientes virtuais no ensino superior de química: uso, aceitação e possibilidades de aprendizagem em uma disciplina de comunicação científica". Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/75/75132/tde-10032010-094742/.
Texto completoCurrently there are several Virtual Learning Environments (VLEs) available on the web to support traditional and distance learning, but still there are a few investigations devoted to study the use and acceptance of such environments by the students. In this work, the VLE named Cursos on-Line (CoL), developed and coordinated by the LARC (Laboratório de Arquitetura e Redes de Computadores do Departamento de Computação e Sistemas Digitais da Escola Politécnica da Universidade de São Paulo), was adapted to be applied in a scientific communication course offered to freshman students in an undergraduate chemistry course at the University of São Paulo. The VLE included the following elements: content modules with textual descriptions of the concepts discussed in the course, links to the web that provide access to the major electronic databases, online forum, message system, glossary, chat, and a database of homework questions. The use and acceptance of the VLE by the students were investigated based on the concepts of Technology Acceptance Model. The professor responsible for the course, two teaching assistants, and 61 undergraduate chemistry students participated as subjects in the research. All navigation for each subject was recorded and the messages to the online forum were automatically archived by the list host computer. Throughout the study, the messages were analyzed based on a model of qualitative criteria for content analysis on online discussion developed by Henri. Along the semester, the VLE was accessed 989 times and a total of 705 messages were posted to the forum. The VLE expanded communication and teaching opportunities in the course. The findings of the study suggest that the appeal of the user interface, the presence of appropriate search options and the availability of sufficient relevant information are critical factors of the VLE\'s acceptance.
Stranieri, Giovanni. "La construction des paysages agraires dans la Pouille médiévale : ressources, pouvoirs et territoires de I'Italie sud-orientale (Vle-XVe siècles)". Paris, EHESS, 2015. http://www.theses.fr/2015EHES0134.
Texto completoThis research focuses on the territories of Méridional Apulia in the Middle Ages. A diachronic inquiry was carried out on the transformation of agrarian landscapes in a 401 km² zone, East of Taranto, encompassing the fields, the agrarian margins and settlement vestiges. Digs have accounted for the archaeological value of tall, drystone walls (paretoni) as sedimentary contexts and territory markers. The émergence of an économie basin centred on Manduria appeared from the 5th century B. C. E. From that time on, the nature of the substratum has been orienting the settlement location and the agricultural choices, though différent settlement patterns and agrarian Systems have been replacing each other since then. Thus, Taranto and Brindisi oriented the distribution of space towards the openings linked to the world-economy specifie to the Late Antique period. Later, in the 8th century, the changes affecting the road network illustrated the central role played by Oria, which became a strategie pole in Longobardian Apulia, in terms of resource draining. The city ruled over the Brindisi plain and demarcated its territorial limits towards Taranto. In the 9th century, together with the Byzantine reconquest, there emerged a dense network of rural settlement; as regards olive production, its expansion has been attested by anthracology. In the Late Middle Ages, while Oria lost its fame, the Mandurian basin fed the fluxes deriving from Taranto and Lecce, which, together with Brindisi, became the new poles of a region that marked the frontier with Latin Europe. Towards the end of the period, successive social changes led to the predominance of latifondo and agro-town model
Ellaway, Rachel Helen. "Evaluating a virtual learning environment in medical education". Thesis, University of Edinburgh, 2006. http://hdl.handle.net/1842/885.
Texto completoAldubaibi, Safa Ali S. "Understanding lecturers' pedagogic practices and perspectives in regard to blackboard utilisation in Saudi and Australian universities". Thesis, Queensland University of Technology, 2018. https://eprints.qut.edu.au/122986/1/Safa%20Ali%20S_Aldubaibi_Thesis.pdf.
Texto completoMaraška, Artūras. "Paskirstytų duomenų surinkimo ir apdorojimo technologijos". Master's thesis, Lithuanian Academic Libraries Network (LABT), 2009. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2009~D_20090831_153918-62754.
Texto completoTerm WIKI defines ideas and basis for data collection and management, necessary and mandatory methods required to ensure quality of collectible data. The purpose of this master work is analysis of existing solutions of data collecting and analysis systems in order to create a new unique WIKI community based system for price and other information (related to products on the market) analysis. System target – build up user manageable knowledge base for recognition of changes in the market, fast, easy and cheapest products information withdraw. It gives an overview of the best data collection approaches structure, techniques and logic, data analysis and collection methods (based on the system target), also proposes created model and defines means and tools, for model creation and realization.
Alghamdi, Turki Mohammed K. "Policy-based runtime tracking for e-learning environments". Thesis, De Montfort University, 2013. http://hdl.handle.net/2086/8237.
Texto completoArzuman, Sadun. "3-D structural and seismic stratigraphic interpretation of the Guasare-Misoa Interval, VLE 196 Area, Block V, Lamar Field, Lake Maracaibo, Venezuela". Texas A&M University, 2002. http://hdl.handle.net/1969/557.
Texto completoKandi, Kamala M. "IMPACT OF VIRTUAL LEARNING ENVIRONMENT (VLE): A TECHNOLOGICAL APPROACH TO GENETICS TEACHING ON HIGH SCHOOL STUDENTS' CONTENT KNOWLEDGE, SELF-EFFICACY AND CAREER GOAL ASPIRATIONS". Diss., Temple University Libraries, 2013. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/224957.
Texto completoEd.D.
This study examines the effect of a technology-based instructional tool `Geniverse' on the content knowledge gains, Science Self-Efficacy, Technology Self-Efficacy, and Career Goal Aspirations among 283 high school learners. The study was conducted in four urban high schools, two of which have achieved Adequate Yearly Progress (AYP) and two have not. Students in both types of schools were taught genetics either through Geniverse, a virtual learning environment or Dragon genetics, a paper-pencil activity embedded in traditional instructional method. Results indicated that students in all schools increased their knowledge of genetics using either type of instructional approach. Students who were taught using Geniverse demonstrated an advantage for genetics knowledge although the effect was small. These increases were more pronounced in the schools that had been meeting the AYP goal. The other significant effect for Geniverse was that students in the technology-enhanced classrooms increased in science Self-Efficacy while students in the non-technology enhanced classrooms decreased. In addition, students from Non-AYP schools showed an improvement in Science and Technology Self-Efficacy; however the effects were small. The implications of these results for the future use of technology-enriched classrooms were discussed.
Temple University--Theses
Upadhyayula, Anant K. "Sorption of organic vapors by copolymers of poly (styrene-butadiene) using a piezoelectric microbalance". [Tampa, Fla.] : University of South Florida, 2005. http://purl.fcla.edu/fcla/etd/SFE0001139.
Texto completoFarina, Renata Mirella. "Contribuições do ambiente virtual de aprendizagem para o desenvolvimento de competências do engenheiro de produção utilizando o PBL". Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/18/18140/tde-23092008-150021/.
Texto completoThe traditional teaching method in the production engineer formation is inadequate to promote the development of their necessary competencies. The information society environment requires team working, quickly problems solving in a collaborative network, and keeping up with the technology innovation in the industrial plants and in the organizations management. This dissertation proposes an improvement of the professional competencies development in the production engineering teaching with the aid of a Virtual Learning Environment (VLE) - MOODLE and the PBL methodology (Problem Based Learning). The library searching methodology will be used when applying PBL into various courses. A prototype will also be applied with both tools in the Information System subject matter included in the production engineering graduation course. The purpose is to validate the proposal following the dissertation presentation.
Makhafola, Lesego. "The use of a Virtual Learning Environment (VLE) to embed library information services in a Blended Learning Environment (BLE) : a University of Pretoria Engineering study". Diss., University of Pretoria, 2018. http://hdl.handle.net/2263/69124.
Texto completoMini Dissertation (MIT)--University of Pretoria, 2018.
Information Science
MIT
Unrestricted
Lombard, James Edward. "Thermodynamic modelling of hydrocarbon-chains and light-weight supercritical solvents". Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/96844.
Texto completoENGLISH ABSTRACT: Long-chain hydrocarbons are of value to numerous lucrative industries. Due to the low volatility and close melting and boiling points of these solutes, traditional fractionation methods lack the required selectivity for separation and cause thermal degradation of the product. This project investigates the feasibility of Supercritical Fluid Extraction (SFE) for processing these systems, with the primary objective of modelling the high-pressure vapour-liquid equilibrium (VLE) properties of hydrocarbon solutes with a light-weight solvent using a semiempirical equation of state (EOS). Pure component vapour pressures and saturated liquid volumes are also investigated. A thorough investigation into the phase behaviour of the n-alkanes, 1-alcohols, carboxylic acids and esters in light weight supercritical solvents CO2, ethane and propane revealed that the solute structure and temperature largely influence the solute solubility and process feasibility. Good selectivity amongst the various solutes was observed for all three solvents, but very high pressures were required for complete miscibility using CO2 (exceeding 30 MPa). The quadrapole moment of CO2 further leads to complexities in phase behaviour such as temperature and density inversions (CO2/alkanes and CO2/alcohols) and 3-phase regions within the operating range. Simple linear trends in pressure vs. carbon number and temperature were observed for all the considered series using ethane and propane and these solvents were thus selected for conducting the modelling for this study. A thorough review of semi-emperical EOS models from literature revealed that the simple cubic equations of state (CEOSs) provide a promising modelling approach for SFE applications due to their simplicity, flexibility and reliability. The simple Peng-Robinson (PR) and Soave-Redlich-Kwong (SRK) EOSs provide good correlation of vapour pressure (%AAD below 5 %) for all the series over a large carbon number range (up to nC20), provided a two parameter alpha function is used. A 3rd parameter in the volume dependence for Patel-Teja (PT) EOS provides considerable improvement over the PR and SRK EOSs for satureate liquid volume correlations of the non-polar solutes (alkanes and esters), but offers virtually no advantage for the more polar alcohols and acids. The CEOSs therefore suffer clear limitations in simultaneous representation of these saturation properties (vapour pressure and liquid molar volume) for the systems of interest. Good correlations of high pressure binary VLE data were obtained using CEOSs available in the Aspen Plus ® simulator (% AAD in P, T and X2 generally below 1 % and ranging from 4 to 12 % for Y2 for all series) provided that two binary interaction parameters (BIPs) are used in the model mixing rules, irrespective of the model used. Aspen Plus ® was further validated as a reliable thermodynamic tool by comparing model fits using the RK-ASPEN model with parameters obtained from the Aspen Plus ® data regression routine and computational methods used in self-developed MATLAB software. Very similar results were obtained for both computational methods, which encourages the use of Aspen Plus ® for process modelling in SFE applications. A statistical sensitivity analysis into the relative effect and interactions between 6 modelling factors in applying the CEOSs revealed that the mixing rules, temperature and solute structure had the largest effect on the correlation of the high pressure VLE, with the pure component limit having negligible effect once BIPs are fitted to data. A significant interaction was, however, observed between the pure component model and the solute structure and temperature, which suggest that accurate correlation of mixture VLE does not solely rely on appropriate mixing rule selection, but also the pure model. Binary interaction parameters (BIPs) in model mixing rules were found to become intercorrelated when more than one are used, greatly impeding the development of generalized correlations. BIPs were also found to be sensitive to the pure component limit (alpha function and pure constants used), the temperature, the combining rules used and possibly the fluid density. These factors should all be taken into account systematically for developing generalized correlations which therefore fell outside the scope of this study. Recommendations were, however, made on how the MATLAB software developed in this study can be used to both expand the size of the statistical analysis already conducted into relevant modelling factors and to develop new generalized correlations for BIPs and new mixing rules.
AFRIKAANSE OPSOMMING: Lang-ketting koolwaterstowwe is van waarde in talle winsgewende industriële toepassings. Vanweë die lae vlugbaarheiden ooreenstemmende kook- en smeltpunte van hierdie molekules, toon tradisionele fraktioneringsmetodes nie die nodige selektiwiteit vir ekstraksie nie en veroorsaak bonop termiese degradering van die produk. Hierdie projek ondersoek dus die lewensvatbaarheid van superkritiese ekstraksie vir die prosesering van hierdie sisteme, met primêre fokus op die modellering van die hoë-druk damp-vloeistof ewewig eienskappe van koolwaterstowwe opgelos in ‘n lae-massa oplosmiddel met gebruik van ‘n semi-empiriese toestandsvergelyking. Suiwer-komponent dampdrukke en versadigde vloeistof volumes word ook ondersoek. ‘n Deeglike ondersoek na die fasegedrag van die n-alkane, 1-alkohole, korboksiel-sure asook esters in lae-massa superkritiese oplosmidds CO2, etaan en propaan toon dat die struktuur van die opgeloste stof en die temperatuur ‘n groot invloed het op die oplosbaarheid en proses lewensvatbaarheid. Goeie selektiwiteit tussen die verskillende koolwaterstowwe was waargeneem vir al drie oplosmiddels, alhoewel baie hoë drukke nodig was vir totale vermenging van die fases in CO2 (hoër as 30 MPa). Die quadrupool moment van CO2 veroorsaak verder ongewenste kompleksiteite in fase gedrag soos temperatuuren digtheid inversies (CO2/alkane en CO2/alkohole) en 3-fase-gebiede in die bedryfs-kondisies. Eenvoudige lineêre tendense in druk tenoor die koolstofnommer van die opgeloste stof asook die temperatuur was waargeneem vir al die ondersoekte koolwaterstof reekse in etaan en propaan en hierdie oplosmiddels was dus gekies vir die modellering vir hierdie studie. 'n Deeglike oorsig van semi-empiriese toestandsvergelykings uit die literatuur het getoon dat die eenvoudige kubiese toestandsvergelykings ‘n belowende modelleringsbenadering bied vir superkritiese ekstraksie toepassings vanweë hul eenvoudigeid, buigsaamheid enbetroubaarheid. Die eenvoudige Peng-Robinson (PR) en Soave-Redlich-Kwong (SRK) toestandsvergelykings bied goeie korrelasie van suiwer dampdruk (foute laer as 5 %) vir alle koolwaterstowwe oor ‘n groot koolstofnommer gebied (tot by nC20), met die voorwaarde dat ‘n 2 parameter alpha funksie gebruik word. ‘n 3rde parameter in die volume afhanklikheid van die Patel-Teja (PT) toestandsvergelyking bied ‘n beduidende verbetering in die passing van die versadigde vloeistof volume vir die nie-polêre koolwaterstowwe (n-alkane en die esters), maar bied geen voordeel vir die meer polêre alkohole en karkoksiel sure nie. Die kubiese modelle toon dus duidelike beperkings vir die gelyktydige voorstelling van hierdie versadigingde eienskappe (dampdruk en vloeistof volume) vir die sisteme van belang. Goeie korrelasie van hoë druk binêre damp-vloeistof ewewig data was verkry deur gebruik van die kubiese toestandsvergelykings beskikbaar inAspen Plus ® (fout in P, T en X2 tipies laer as 1 % en van 4 tot 12 % vir Y2 vir alle sisteme), met die voorwaarde dat 2 binêre interaksie parameters gebuik word in die model mengreëls, onafhanklik van die model. Aspen Plus ® was verder bekraktig as ‘n betroubare termodinamiese hulpmiddel deur model passings te vergelyk met die RK-ASPEN model tussen gevalle waar parameters verkry is deur die beskikbare regressie metode in Aspen Plus ® en metodes gebruik in self-ontwikkelde MATLAB sagteware. Eenderse resultate was verkry vir beide berekeningsmetodes, wat die gebruik van Aspen Plus ® vir prosesmodellering in superkritiese ekstrasie toepassings aanmoedig. ‘n Satistiese sensitiwiteits analise op die relatiewe effek en interaksies tussen 6 modelleringsfaktore in die toepassing van die kubiese toestandsvergelykings het gevind dat die mengreëls, temperatuur en die stuktuur van die opgeloste stof die grootste effek op die korrelasie van hoë druk binêre damp-vloeistof ewewig het, met ‘n weglaatbare effek vandie suiwerkomponent limiet waargeneem sodra binêre interaksie parameters gepas is aan data. ‘n Beduidende interaksie was wel waargeneem tussen die suiwerkomponent model en die struktuur van die opgeloste stof asook die temperatuur, wat daarop dui dat akurate korrelasie van mengsel damp-vloeistof ewewig nie slegs afhanklink is van ‘n gepaste keuse van mengreëls nie, maar ook die suiwer-komponent model. Binêre interaksie parameters in die model mengreëls ondergaan inter-korrelasie wanneer meer as een interaksie parameter gebruik word, wat die ontwikkeling van algemeen toepaslike korrelasies grotendeels belemmer. Binêre interaksie parameters was ook bevind om sensitief te wees tot die suiwer component limiet (alpha funksie en suiwer konstantes wat gebruik is), die temperatuur, die kombineringsreëls en moontlik die vloeistof digtheid. Hierdie faktore moet dus almal sistematies in ag geneem word wanneer algemeen toepaslike korrelasies ontwikkel word, wat dus buite die omvang van die huidge studie val. Aanbevelings was wel gemaak vir hoe die MATLAB sagteware ontwikkel vir hierdie studie gebruik kan word om beide die betaande statistiese analise uit te brei, asook nuwe korrelasies vir binêre interaksies parameters en nuwe mengreëls te ontwikkel.
Gerber, Renan Pereira. "Novo modelo de coeficiente de atividade : F-SAC". reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2012. http://hdl.handle.net/10183/96494.
Texto completoAt present, at least for engineering purposes, the most successful predictive models for activity coefficients are those based on functional groups, such as UNIFAC and its variants. While these models require large amounts of experimental data, the ones based on COSMO-RS require the calibration of a small set of universal parameters. However, the resolution required by engineering tasks, such as the optimization of separation systems, is higher than that obtained by COSMO-RS models. Thus, in this work a novel Functional-Segment Activity Coefficient (F-SAC) model is proposed. This new model is also based on the concept of functional groups, but the interaction energy between groups comes from the COSMO-RS theory. In this study, we considered only mixtures where there is no formation of hydrogen bonds or when they could be assumed negligible. Then, only three parameters were required to describe each functional group. In principle, once the parameters for each functional group are properly calibrated, they should work to describe the interactions with any other group. This is the main advantage of the proposed model, the number of model parameters grows linearly with the number of functional groups, whereas in UNIFAC the number of interaction parameters exhibit quadratic growth with respect to the number of groups. For the experimental database of infinite dilution activity coefficients considered, the correlation of F-SAC have shown a mean absolute error of 0.07 ln-unit. The UNIFAC (Do) and COSMO-SAC models presented errors of 0.12 and 0.21, respectively. F-SAC was also evaluated for more than 1000 binary mixtures of solute in ionic liquid with data available in the literature. Again, the model have shown good correlation to the experimental data, with mean absolute error of 0.17 ln-unit, similar to the performance with the organic mixtures. The predictive strength of the model was assessed by using vaporliquid equilibrium data not considered in the model fitting process. Very good agreement with experimental data was possible over the entire composition range, as well as in the prediction of azeotropes. These results demonstrate the potential of the proposed method.
Flôres, Guilherme Braganholo. "Inclusão de um termo de dispersão no modelo F-SAC". reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2016. http://hdl.handle.net/10183/142745.
Texto completoThe recently introduced F–SAC (Functional–Segment Activity Coefficient) model combines the group contribution idea with a COSMO–RS surface contacting theory. This model has a reduced dependency on binary interaction parameters when compared to classical UNIFAC type models and improved accuracy when compared with COSMO based models. In the present work a modified F–SAC formulation is proposed for including dispersive interactions. For testing the modification, experimental data of alkanes, cycloalkanes, alkenes aromatics and perfluorocarbons were considered. The proposed model was able to correlate pure compound enthalpies of vaporization, not considered in previous versions of the model. Since the heat capacity of liquids is closely related to the enthalpies of vaporization, the model also can predict pure compound heat capacity of liquids. Regarding mixture infinite dilution activity coefficient and vapor–liquid equilibrium data, the modified model maintained the good performance of the original model, also similar to other competing models such as UNIFAC variants. Additionally, the modified model now can compute consistent values for the excess enthalpy and entropy for systems where the interactions are mainly dispersive. For these systems, most activity coefficient models predict zero excess enthalpies, counterbalancing that with distorted excess entropies.
Beerline, Nora. "Negotiating Space: Exploring the Rhetorical Potential of Open Source Software". University of Dayton / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1304015386.
Texto completoSchneider, Rafael. "Aprimoramento do modelo F-SAC para aplicação na descrição de líquidos iônicos". reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2018. http://hdl.handle.net/10183/183234.
Texto completoIonic Liquids are one of the most promising fields to revolutionize chemistry in the 21st century. In general, they show properties like negligible vapor pressure, high thermal stability, wide liquid existence turn them interesting for applications as solvents for extraction, as reactional and catalytic media. These properties allow a reduction in industrial effluent production, making them eligible green solvents. Recent inteerest expanded the number of anions and cations available to compose Ionic. This great diversity enhances the industrial application potential of Ionic Liquids, while increases the workload needed for obtaining properties of these new substances needed for industrial project. Predictive methods can used to avoid the demand of experiments to obtain these properties. Purely predictive methods, as COSMO-RS, are usually not accurate enough for industrial use. Models use experimental data from mixtures for parameter estimation like UNIFAC (Do) and F-SAC, are predominant in the industry. Activity coefficient models like these allow the solving of phase equilibria and other thermodynamic properties. This work aimed at developing the F-SAC model for Ionic Liquids. Based on previous works, the already existing parameters for Ionic Liquid groups were reestimated and new cation and anion groups were added. In addition, the first vapor-liquid equilibrium curves for mixtures containing Ionic Liquids were created for the F-SAC model. For 1-alkyl-3-ethyl-imidazoliums, an overall R2 of 0.9794 and AAD of 0.1721 for 1514 mixtures was obtained, superior to UNIFAC (Do) values. For pyridinium and pyrrolidinium, F-SAC achieved, respectively, R2 of 0.9281 and 0.9837 and AAD of 0.2749 and 0.0962. With this work is possible to form 24 different base Ionic Liquids with 33 estimated electrostatic parameters and 22 geometric parameters with F-SAC. For the same purpose, UNIFAC (Do) would need 180 binary parameters and 23 individual parameters – all estimated. For this particular case the F-SAC model needed to estimate only 27% of the parameter number UNIFAC (Do) needed.
Bolldén, Karin. "Online teaching practices : Sociomaterial matters in higher education settings". Doctoral thesis, Linköpings universitet, Pedagogik och vuxnas lärande, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-117275.
Texto completoSyftet med föreliggande studie var att beskriva och analysera undervisningspraktiker online i svensk högre utbildningskontext. Studien har en onlineetnografisk ansats och baseras på empiriska data av undervisningen i två kurser på universitetsnivå. Studien stödjer sig främst på observationsdata men även intervjuer och dokumentstudier ligger som grund för analysen. Empiriska data har analyserats med ett praktikteoretiskt perspektiv – ett perspektiv inom sociomateriell teoribildning. Resultatet visar att undervisning online kännetecknas av en förkroppsligad sociomateriell praktik. Lärarkroppen kan förstås som både multipel och tätt sammanvävd med teknologi. Vidare används lärarkroppen i undervisningssituationen för att reducera komplexitet men även för att, tillsammans med annan materialitet, prefigurera vad det är för typ av undervisning som kommer att utspela sig. Vidare kan lärarinterventioner i onlinemiljöer förstås som relationella till både tekniken (det vill säga det virtuellt materiella arrangemanget) och lärares göranden och säganden (det vill säga undervisningspraktiken). Lärarinterventioner syftar till att göra arrangemanget begripligt för studenterna. Studien visar att lärarinterventionerna arrangerar både studenter och informations- och kommunikationsteknologi (IKT) i syfte att få dem att fungera som en undervisningspraktik. Den undervisningspraktik som uppstår är inte given på förhand utan emergent. Den karaktäriseras av ett samspel mellan virtuell materialitet och social praktik där asymmetriska relationer mellan lärare och IKT råder.
Ghaith, Omar. "The impact of blended learning on female student-teachers in Kuwait". Thesis, Brunel University, 2013. http://bura.brunel.ac.uk/handle/2438/7628.
Texto completoRazavi, Seyed Mostafa. "CROSS-PLATFORM FORCE FIELD DEVELOPMENT BASED ON FORCE-SMOOTHED POTENTIAL MODELS". University of Akron / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=akron1590770530909963.
Texto completoCastillo-Chumpitaz, Karolayn Angélica y Gargurevich Sandra Gutiérrez. "El aprendizaje colaborativo en la educación de intérpretes a través de un VLE: perspectivas de los docentes y estudiantes de la UPC durante el periodo de enseñanza completamente remota". Bachelor's thesis, Universidad Peruana de Ciencias Aplicadas (UPC), 2021. http://hdl.handle.net/10757/656984.
Texto completoDue to its interdisciplinary nature, remote interpreting training has been studied from different theoretical and applied approaches in the past two decades. Research topics range from analyzing instructors’ and learners’ perspectives as members of a long-distance learning community to evaluating the effectiveness of tailored virtual learning environments (VLEs) in the development of interpreter’s skills. Findings reveal that socio-constructivist educational models such as student-centered environments and collaborative learning are not losing ground in virtual classes—in some cases they are even boosted by new technologies. Some regions in the world made the big technological leap into e-learning for the first time in 2020, amidst the COVID-19 pandemic and extended sanitary restrictions for on-site education. In this particular study’s case, the undergraduate program for Professional Translation and Interpreting (TIP) at Universidad Peruana de Ciencias Aplicadas (UPC), the transition to fully-remote interpreting training demanded a fast adaptation of the previously non-core VLE to one capable of enabling students to accomplish their courses’ learning objectives and teachers to replicate UPC teaching approaches. Through several personal interviews, this qualitative study looks into seven teachers’ experiences on the process of adapting one VLE to replicate, among other things, collaborative learning in each of the four interpreting courses in the TIP program during 2020. Through two separate focus groups, this paper also explores the perspective of fifteen students regarding the VLE and collaborative learning during the fully-remote education period.
Trabajo de investigación
Klima, Tobias C. y Andreas S. Braeuer. "Vapor-liquid-equilibria of fuel-nitrogen systems at engine-like conditions measured with Raman spectroscopy in micro capillaries". Elsevier, 2018. https://publish.fid-move.qucosa.de/id/qucosa%3A73221.
Texto completoRådemar, Joakim. "Concerning the transition of learning : A case study of the LMS and e-learning situation at university department level". Thesis, Uppsala universitet, Institutionen för informatik och media, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-295831.
Texto completoFerrarini, Fabrício. "Um banco de dados de perfis sigma aberto e extensível". reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2017. http://hdl.handle.net/10183/163424.
Texto completoCOSMO-based activity coefficient models are widely used to predict non-ideality in mixtures. They require only pure substance properties, such as the -profile, a representation of the screening charge density along the molecular surface. The present work aims to create and freely distribute a -profile database which can be easily extended by the community using the free GAMESS quantum chemistry (QC) package. Different combinations of QC methods and basis sets were tested in the calculation of the -profiles, aiming to define an efficient approach to create the database. The accuracy of COSMO-SAC predictions using these -profiles was evaluated by comparison with experimental infinite dilution activity coefficients and phase equilibrium diagrams. Among the studied alternatives, the Hartree-Fock method with the 6-311G(d,p) basis set led to results with a good balance between accuracy and computational cost. Our database was created using this approach, and it is already available to be used and extended by the community without requiring any commercial software.
Schneewele, Manuel. "Implantation d'un E.N.T. dans l'enseignement secondaire, analyse et modélisation des usages : le cas lorrain". Thesis, Université de Lorraine, 2012. http://www.theses.fr/2012LORR0116/document.
Texto completoThe implementation, by local collectivity, of a VLE (Virtual Learning Environment) in secondary schools and high school is not without consequences for the educational community daily activities. Our study aims to understand emerging uses by carry out a decomposition of the appropriation process. It also responds to an institutional command whose aim is turned toward the promotion and stimulation of the utilisation of this type of tool. Therefore, our objective is to create a model to understand which are VLE users and how is managed the transition between uses prescribed by the creators and observed behaviors.For its concretization, our model is built on a set of preliminary work.- The operating frame study based on interviews with prescribers and the analysis of the Lorraine VLE project specification chart.- The use frame study, on one hand, through uses counter measures from the CDC (Caisse des Dépôts group), on the other hand, by questionnaires upon which functions we report first uses and social representation of a VLE and his book-texts by students, teachers and parents.The model pattern, supported by a robust literature, is called: DAME (Dynamic Acceptance Model for Education). It was applied to a population of 3,100 students, 774 parents, 617 teachers and 44 staff members of school life.The results show in a first step, the importance given to "usefulness" and "usability" perceptions. To promote the adoption of a VLA, and therefore its acceptability in the daily teaching activities, it's crucial that its handling and its added value were associated with its use are fully perceived. In a second step, it seems necessary to take into account, the social network of the user, what we call in our model "social pressure", students and staff of school life being particularly responsive to it. In a third step, we observe that tool properties can generate what we designate by "instrumental pressure" which retroactively impact on previous variables. Due to repeated use, addiction to ENT may be installed when it becomes essential for the quality of his professional or learning activity, which is notably the case for two functionalities: text-book and information space. Nevertheless, our model shows that other factors can be able to explain uses; therefore, new research prospects can be expected. Finally, it seems clear, on the basis of our various surveys, that the main beneficiaries of VLE are mainly parents and students. But if both show strong interest for its use, they are confronted to the resistance of some teachers denouncing an overwork and an excessive transparency of uploaded information
Vaira, Žilvinas. "Besimokančiojo modelio vaizdavimas virtualioje mokymo(si) aplinkoje". Master's thesis, Lithuanian Academic Libraries Network (LABT), 2007. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2007~D_20070816_144839-75878.
Texto completoIn adaptive systems adaptation to learner is defined by collection of data about learner, collected data analysis and learning environment adaptation to learners needs. Looking forward to this goal it is necessary to select such logging data, which can be used to make conclusions in a system level. Such data should be acceptable to system, interactive and easy to collect. Data used can be various, starting from click time of the link ending with eye look direction angle. Such system can provide data transformations and depending on purpose, give suggestions. Using necessary tools depict useful information, reacting to results. Most of currently build systems are only in prototype stage or are used for unsophisticated process. Most of them are one subject systems. In this work we address a possibility of student model’s depiction in a VLE, when student participate in one or more than one distance course.
Jurka, Vidmantas. "Tiksliesiems mokslams skirtų testavimo sistemų tyrimas". Master's thesis, Lithuanian Academic Libraries Network (LABT), 2010. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20100830_094429-98522.
Texto completoInformation technologies are becoming ever more an integral part of the learning process. It has become accepted that learning about information technologies should be transformed to learning with information technologies expanding traditional teaching methods with the methods for teaching information technologies. That should help to coordinate and apply new teaching methods more effectively. Having conducted a questionnaire of teachers of exact sciences (chemistry, physics, informatics and mathematics), it has been determined what percentage of teachers use information technologies for student testing, what software is used, and what functionality for the software is needed. After analyzing the survey data the software most often used for testing students and its missing functionality have been determined. The modules extending the virtual learning environment Moodle for testing students in exact sciences have been written and tested: the Moodle program code has been modified by including an HTML editor for the answers to testing system questions; the filter cTeX for entering chemical formulas and three-dimensional molecule models has been written, and a new type of question for testing the Pascal programming language has been created.
Binkis, Mikas. "Scenarijų panaudojimas mokymosi sistemose". Master's thesis, Lithuanian Academic Libraries Network (LABT), 2007. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2007~D_20070111_010919-40719.
Texto completoKulpa, Cínthia Costa. "Sistemática para o desenvolvimento de diretrizes no design de interfaces gráficas em tablet PCs voltadas a usuários típicos". reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2017. http://hdl.handle.net/10183/163912.
Texto completoThe evolution of mobile technologies has significantly broadened the digital inclusion possibility for persons with general disabilities, by providing interaction with no space and time barrier constraints. Among these new technologies, the Tablet PCs are currently deemed the most widely implemented mobile technology in teaching institutions worldwide due to their wide capacity of interactivity, flexibility, mobility, browsing through Virtual Learning Environments (VLEs), and accessibility to different user profiles However, most Low Vision (LV) users have faced difficulties to browse through VLEs by means of this technology and must resort to Assistive Technologies aimed at blind persons. Although the guidelines employed for the construction of those Graphic User Interfaces (GUIs) are founded on the precepts of W3C and Universal Design, this fact may harm their condition, generate frustration and, consequently, result in their digital exclusion. This way, the objective of this research is to improve the VLE usability conditions on Tablet PCs through a structured systematic to provide guidelines capable of instructing developers to create GUIs with LV users in mind. The methodology employed is based on the VLE Moodle as the scenery used for the case study, was carried out in three stages and included Web experts as well as LV users, leading to the development of the systematic. As an end result of its validation, there is a Guidelines Guide aimed at the construction of GUIs that are accessible to LV users on Tablet PCs. It has been concluded that this systematic allows developers to group up and conceive their own recommendations in the form of a guidelines guide that are capable of instructing them in incrementing interfaces specifically aimed at a defined typical users regardless of the established scenery of use. This way, it would reflect as an access guarantee and quality for those users, and allow for improvements to the project implementation process by developers.
Gazawi, Ayman. "EVALUATING COSMO-RS FOR VAPOR LIQUID EQUILIBRIUM AND TURBOMOLE FOR IDEAL GAS PROPERTIES". University of Akron / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=akron1196731182.
Texto completoPeretti, Andrà Prado. "POJAVA: Ambiente Virtual de Aprendizagem para a Web 2.0". Universidade Federal do CearÃ, 2008. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=3952.
Texto completoApesar das vÃrias opÃÃes de ambientes virtuais de aprendizagem no cenÃrio educacional, hà pouco resultado nas aÃÃes que ensejam uma maior motivaÃÃo e envolvimento dos alunos numa utilizaÃÃo mais eficiente destes. Os ambientes virtuais de aprendizado tÃm se apresentado com configuraÃÃes semelhantes no decorrer dos anos. Como forma de envolver os alunos, e buscar resultados mais efetivos nestes ambientes, à introduzida neste trabalho, uma nova arquitetura de ambiente virtual de aprendizagem, baseado nas tecnologias web 2.0 no sentido da personalizaÃÃo em massa. Em um contexto educacional a personalizaÃÃo em massa à um conceito onde o prÃprio usuÃrio tem maior autonomia na decisÃo da forma e conteÃdo do seu ambiente. Jà o termo web 2.0 refere-se as novas aplicaÃÃes web que proporcionam uma rica experiÃncia ao usuÃrio, com recursos de Ãudio, vÃdeo e principalmente diversas possibilidades de interaÃÃo, enxergando o usuÃrio como parte integrante do sistema, muitas vezes atà como o principal criador da informaÃÃo. Neste trabalho foi definido um modelo de arquitetura, com o objetivo de mostrar possÃveis aplicaÃÃes pedagÃgicas com essas novas tecnologias, bem como uma definiÃÃo de requisitos baseado na engenharia de software. Analisaram-se ferramentas e recursos que devem compor este novo ambiente para web 2.0 e com mÃltiplas possibilidades de personalizaÃÃo, das fontes de informaÃÃo aos aplicativos, como tambÃm os fatores que fazem essas tecnologias propÃcias à prÃtica educacional, como tambÃm questÃes relativas ao comportamento do aluno. TambÃm foram analisados trabalhos que apresentavam propostas relacionadas e exemplos destas tecnologias na web atual. Novas formas de comunicar e aprender desafiam as instituiÃÃes de ensino, um ambiente baseado nestes conceitos nÃo à constituÃdo apenas de novas tecnologias, mas sim de uma quebra de paradigma para um ambiente de aprendizagem com menor nÃvel de controle, onde o aluno possui maior liberdade e domÃnio da informaÃÃo.
Though several options of virtual learning environments in the educational scenario there is a few result in actions wich crave greater motivation and involvement of the students in a use more efficient of these. The virtual learning environments have been presented with similar settings over the years. Used as a way to involve the students and reach more effective results in these environments is introduced in this paper a new architecture of virtual learning environments based on Web 2.0 technologies towards mass customization. Considering an educational context the mass customization is a concept where the user has more autonomy in deciding about the form and the content of his own environment. Already the term Web 2.0 refers to the new web applications that provide a great experience to the user with resources of audio, video and mainly many possibilities of interaction. The user is viewed as part of the system and even the main creator of the information. An architecture model was defined in order to show possible pedagogical applications with these new technologies as well as a definition of requirements based on software engineering. Tools and resources were analysed and they must compose this new environment for web 2.0 with multiple possibilities for customization from the sources of information to applications, as well as the factors that make these technologies conducive to educational practice, questions related to the behavior of the student and some analyses of other studies that showed proposals and examples of these technologies on the todayÂs web. New ways to communicate and learn defy the institutions of education, an environment based on these concepts is not composed only of new technology but even about a breach of paradigm to a learning environment with lower level of control where the student has more freedom and field of information.
Escobar, Patrícia Mussi. "A escala comum de valores em grupos de aprendizagem de espanhol como língua estrangeira (E/LE) como sistemas adaptativos complexos". Universidade Federal de Pelotas, 2013. http://repositorio.ufpel.edu.br/handle/ri/2160.
Texto completoThe research was developed based on the thesis of Vetromille-Castro (2007), in which collaboration and autonomy were considered values that fostered interaction and maintained the cohesion and emergency of the group. However, Vetromille-Castro considered that there were other values besides collaboration and autonomy which were shared among co-valorizing individuals (Piaget, 1973). It is precisely on this hypothesis that we developed this work. In this research we studied the interactive process in a group of trainee teachers of Spanish as a Foreign Language (SFL) in virtual learning environment forums. We analyzed the posts of 30 students, the e-learning tutor and two researchers from one of the support centers in four forums of the discipline of Spanish III in a teacher development course in a federal university in southern Brazil in a distance learning modality. The results were obtained by descriptive analysis of a qualitative nature and of a virtual ethnographic interpretation (HINE, 2004). In the interactions we confirmed the hypothesis that there were other values at stake in qualitative changes. In addition to collaboration and autonomy, we identified other values that were common among individuals in the groups, which behaved as complex adaptive (sub)systems (SAC) in each of the four studied forums, also considered as a SAC. Taking into consideration Schwartz s (1992) propositions, we have identified exchanges of mutual benefit (PIAGET, 1973) in each group that was formed in the forums, on a map of values of common scales around values such as equality, friendship, responsibility, creativity, solidarity, among others, besides those already noticed in previous work, namely collaboration and autonomy.
A pesquisa é construída com base na tese de Vetromille-Castro (2007), na qual foi constatado que a colaboração e autonomia foram os valores que fomentaram a interação e mantiveram a coesão e emergência do grupo estudado. Entretanto, Vetromille-Castro considerou que havia outros valores, além da colaboração e da autonomia, que foram compartilhados entre os sujeitos covalorizantes (PIAGET, 1973). E é justamente a partir dessa hipótese que desenvolvemos este trabalho. Na presente pesquisa, estudamos o processo interativo em um grupo de professores em formação de Língua Espanhola como Língua Estrangeira (E/LE) nos fóruns de um ambiente virtual de aprendizagem. Analisamos as postagens de 30 alunos, da professora tutora a distância e das duas professoras pesquisadoras de um polo em quatro fóruns da disciplina de língua espanhola III de uma licenciatura em uma universidade federal no sul do Brasil, na modalidade a distância. Os resultados foram obtidos mediante a análise descritiva, de natureza qualitativa e de interpretação etnográfica virtual (HINE, 2004). Nas interações confirmamos a hipótese de que havia outros valores em jogo nas trocas qualitativas, pois identificamos, além da colaboração e da autonomia, outros valores que eram comuns entre os indivíduos dos grupos, os quais se comportaram como um (sub)sistema adaptativo complexo (SAC) em cada um dos quatro fóruns estudados, também considerados como um SAC. A partir de Schwartz (1992), identificamos, no mapa de valores das escalas comuns de cada grupo que se formou nos fóruns, trocas de benefício recíproco (PIAGET,1973) em torno de valores, como igualdade, amizade, responsabilidade, criatividade, solidariedade, dentre outros, além daqueles já percebidos em pesquisa anterior, a saber, colaboração e autonomia.
Santos, Alexandre. "Processo de implementação de Ambiente Virtual de Aprendizagem (AVA) para disciplina Matemática Financeira na modalidade semipresencial EaD na instituição FAMOSP". Pontifícia Universidade Católica de São Paulo, 2016. https://tede2.pucsp.br/handle/handle/19582.
Texto completoMade available in DSpace on 2017-01-10T11:26:58Z (GMT). No. of bitstreams: 1 Alexandre Santos.pdf: 664590 bytes, checksum: e1be3898431dc1079b103d240badbd0a (MD5) Previous issue date: 2016-12-06
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES
Distance education (DE) is a topic that has been successfully growing on a national level, and because of that, it offers the opportunity to most people entering higher education by flexibility and mobility that this model provides. The objective of this study was to analyze some insights about Educational Designer in implementing the 20% of presentials disciplines to distance mode. In addition to addressing the theoretical aspects of the Educational Design, because in this new educational context arises the importance of the Educational Design, whose main characteristic is to be articulator between the direction of the institution, faculty and student body and being involved with the planning, development and use of educational resources, methods, techniques and activities to promote the teaching and learning according to the guidelines of the education program. The Financial Mathematics in FAMOPS It is the focus of the implementation of the online course, presenting the tools used by the Educational Designer applied within the Moodle, being synchronous and asynchronous, helps to monitor learning and encourage participation in individual and group activities
Como a EAD tem crescido muito no âmbito nacional, oferece-se a oportunidade de diversas pessoas ingressarem no ensino superior, pela flexibilidade e mobilidade que esse modelo proporciona. Esta dissertação relata o trabalho do Designer Educacional na implementação dos 20% das disciplinas na modalidade a distância. Além de abordar os aspectos teóricos sobre o Design Educacional, descreve o processo de implementação de conteúdo disciplinar, por meio do uso de recursos de designer. Além disso, neste novo contexto educacional o trabalho ressalta a importância da gestão do designer, cuja principal finalidade é articular com a direção da instituição, corpo docente e o corpo discente, além de estar envolvido com o planejamento, o desenvolvimento e a utilização de recursos educacionais, métodos, técnicas e atividades a fim de promover o processo de ensino e aprendizagem de acordo com as diretrizes do projeto pedagógico. A disciplina de Matemática Financeira na FAMOSP é o foco da implementação do curso online. A pesquisa descreve as ferramentas utilizadas pelo Designer Educacional aplicadas dentro do Moodle, ou seja, do ambiente virtual de aprendizagem para planejar e construir atividades síncronas e assíncronas, permitindo o auxilio e acompanhamento da aprendizagem. Em conclusão, o trabalho pode evidenciar a necessidade de revisão do modelo a distância e dos procedimentos de planejamento adotados, tendo em vista as descobertas que emergiram na análise da narrativa do autor
Chang, Chinhong Lim. "Faculty Perceptions and Utilization of a Learning Management System in Higher Education". Ohio University / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1210864179.
Texto completoMoraes, Marcelo Jorge de. "Aplicação de recursos de ambiente virtual de aprendizagem em curso de biologia do ensino médio". Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/81/81133/tde-20072011-152717/.
Texto completoThis work refers to the use of a Virtual Learning Environment (VLE) for a biology course in attendance for senior high school students. This study was developed with three different groups in the years of 2008, 2009 and 2010, at a private school in São Paulo, Brazil. The objective of this study was to test the hypothesis that students within this context specially used the VLE as a source of studying documents. Another objective was to verify the possibilities of establishing effective interactions through forum participation This study can be classified as an action research due to its methodological characteristics. The sources of information were VLE log data, students evaluation questionnaires and interviews. For interaction analysis, a Henri models adaptation was used (HENRI apud MCKENZIE and MURPHY, 2000). The results endorse the initial hypothesis the students look for studying sources at the virtual environment. In relation to forum use, few students demonstrate effective interaction and some possible teacher mediations that could enrich this interaction were tested. The elements that are related to low forum participation are discussed. Some perspectives driven from this study are brought at the end of the work.