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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
101

The development and utilization of assays to characterize populations of gaeumannomyces graminis

Thomas, Samantha Lynn 30 September 2004 (has links)
No description available.
102

Model, Design, and Control for Power Conversion in Wave Energy Converter System

Chen, Chien-An 29 June 2020 (has links)
Wave energy has great potential in energy harvesting, but due to its high system cost per electricity production, it is still in the pre-commercialization stage for grid connection. A wave energy converter (WEC) system that harvests energy through wave motion consists of a wave energy converter and a power take-off (PTO). A wave energy converter, usually a floating buoy, absorbs the hydrodynamic motion from wave and generates a mechanical oscillation. A power take-off (PTO) with mechanical transmission, which harvests the electrical energy through the mechanical energy, usually includes a transmission that converts linear motions from the buoy to rotational motions, an electromagnetic generator that produces electricity from a rotational shaft, and a power electronics converter that converts the ac electric power from the generator and charges the output dc battery or the ac grid. The models of the WEC system are usually oversimplified in a multi-physics study. A PTO model as an ideal actuator with 100 % efficiency will show a different frequency response than the real tested results and can make the controller design invalid. A conventional regular-wave circuit model shows discrepancies in power and force prediction in time-domain under irregular wave conditions. A model that can bring the multiple fields together, and provides an accurate prediction from irregular wave dynamics and non-ideal PTO mechanism is needed. A methodology that converts mechanical transmission equations into a circuit model is created. The equivalent circuits of mechanical components such as one-way clutches, gears, a ball screw, mechanical couplings, and generator are derived respectively to describe the dry frictions, viscous damping, and mechanical compliances in these components. The non-ideal efficiency and force of the PTO are predicted in electrical simulations by integrating these sub-circuit models. The circuit model is simplified, and its parameters are categorized as dc and ac unknowns. Using PTO with a mechanical-motion-rectifier (MMR) gearbox as an example, the dc and ac tests on the PTO are performed sequentially to extract two sets of parameters through linear regression or nonlinear curve fitting. The simulated efficiencies of 30 – 80% match well with experimental results. The model is validated through its prediction capability over 25 test conditions on input forces, output voltages, and efficiencies, with correlation coefficients R2 value of 0.9, 0.98, and 0.981, respectively. An equivalent circuit model of fluid-body dynamics for irregular waves, applicable to real ocean conditions with frequency-dependent radiation damping, is developed. Different from PTO modeling, the time-invariant circuit is created from a fourth-order RLC equivalent circuit through transfer function approximation in the frequency domain and Brune network. The circuit-based wave energy converter (WEC) model is verified by comparing the results with the predictions of a detailed model under irregular wave conditions in the time and frequency domains based on a point absorber type of WEC with a power take-off (PTO). The results show that the developed model gives an accurate dynamic prediction for a WEC under both regular and irregular conditions. Along with the PTO model, the circuit-based W2W model is completed for control and design optimization of the WEC system. Wave energy converter systems have faced various challenges such as reciprocal wave motion, high peak-to-average power ratio, and potential wave height from hundred-year storm conditions. These could lead to an overdesigned power take-off (PTO) of the system and significantly reduce the lifetime of the power electronics converter. The power ratio between the peak and the average power of the wave power converter is around 10 – 20 times. Power optimization is necessary to reduce the over design ratio of the power electronics converter. The design guideline that optimizes the power ratings for the power converter and the generator is introduced. The methodology is developed from the W2W circuit model taking the losses of the power converter and the generator into consideration. By optimizing the power limiting and field-weakening controls, the ratio from the average output power to the rated power of the power converter is reduced to 2.4 in the maximum wave condition, and 15 in the annual wave profile. A maximum energy control algorithm on the power electronics in wave energy application is developed to increase the total energy produced from the power converter in a wave energy converter (WEC) system. A 4-D damping and power leveling maps for maximum energy are built for the algorithm. The maps are based on the irregular W2W circuit model and reliability analysis on the IGBT module. From the yearly wave mission profile, the strategy is proved to increase energy by 16 times or increase the lifetime from 3 to 18 years in exchange for 6 % of average output power than the conventional maximum power algorithm. In conclusion, this work provides a new circuit-based perspective for co-designing the multi-disciplinary WEC system. The methodologies of circuit modeling can benefit the co-design process of other mechatronic power systems, such as electric vehicle or renewable energy system. The newly invented mechanical device – the mechanical motion rectifier, is understood thouroughly via the non-ideal electrical model. The commercialization of wave energy converter is driven forward through the reduction of the levelized cost of electricity (LCoE) which is made possible by increasing the energy production and optimizing the cost per output power of the generation and power conditioning stages. / Doctor of Philosophy / Wave energy, if all been harvested along the U.S. coastline, can power around 65% of the energy consumption in U.S.. Comparing to other renewable energy sources like solar or wind, ocean wave can provide up to 90% of steady uptime. With the high energy density (2-3 kW/m2), it can produce more energy with the same amount of installation area comparing to the energy density of wind turbine (0.6 kW/m2) and solar panel(0.2 kW/m2). The predictability of wave provides advantages like planning installation, power dispatching, and maintenance activities. Although with all these advantages, wave energy converter system is still in the research stage due to its high system cost per electricity production. One of the challenges that need to be solved is the irregularity from the wave motion that leads to high instantaneous peak power into the wave energy converter, which usually reaches up to 10 - 20 times of the average power. The high peak power will not only bring high mechanical/electrical stress but also result in an overrating design of the components in the system. Another obstacle that prevents the wave energy system from moving forward is the high testing cost from the validations in wave-energy-test sites or tank-test sites. A high-fidelity multi-disciplinary system model, including hydrodynamics, mechanical dynamics, electromagnetics, and power electronics, is needed to predict the behavior of the system and reduce the cost of design validation. This work provides a unified circuit-based perspective for co-designing the multi-disciplinary wave energy system. The efficiencies and mechanical dynamics of the system are accurately predicted via the non-ideal electrical model. These methodologies of circuit modeling can also benefit the co-design process of other mechatronic power systems, such as electric vehicles or renewable energy systems. The peak of the irregular power is controlled by the power-leveling and field-weakening control, and as a result, the overdesign ratio of the power converter reduces from 11.1 to 2.4. Through proper design of the converter's control algorithm, the total produce electric energy is increased by 15 times, as well as the lifetime of the power electronics extended from 3 years to 18 years. Therefore, the commercialization of wave energy converter is driven forward through the reduction of the levelized cost of electricity (LCoE), which is made possible by optimizing the component lifetime and the output energy utilizing the developed circuit-based wave-to-wire model.
103

Mechanical Motion Rectifier Based Single and Hybrid Input Marine Energy Harvester Analysis, Design and Basin Test Validation

Chen, Shuo 19 May 2021 (has links)
Point absorber style marine energy harvesters have been investigated based on their structure, energy harvesting efficiency, and reliability along with costs. However, due to the continuously varying ocean conditions and climates, the system usually suffers low power output and reliability from low input and high Peak to Average Ratio (PAR). Therefore, a Mechanical Motion Rectifier (MMR) based point absorber is introduced in this thesis to promote the harvesting efficiency and reduce the PAR by unifying the input rotation, and allow disengagement inside the gearbox during low power output phase. A 1:20 scale full system was then designed, prototyped, and tested based on the MMR. The bench test results show that the proposed MMR based point absorber could improve the energy conversion efficiency by 10 percent, which brings feasibility to the implementation. Traditional Wave Energy Converter(WEC) can only harvest ocean waves while ocean current is also one of the significant energy sources widely existing in ocean. In order to further increase the energy harvesting efficiency, one individual energy input source shows its limits. A vast majority of places around the world tends to co-exist both marine waves and current, and extracting energy from both sources could potentially increase the electric power output. Therefore, the Hybrid Wave and Current Energy Harvester (HWCEC) is introduced along with the hybrid gearbox. It is capable of harvesting energy from both ocean waves and current simultaneously so that the electric power output is significantly higher from a combined system. Tank test data shows 38-79 percent of electric power output promotion of an HWCEC compared to a regular WEC, and 70 percent reduced PAR in irregular wave condition. After that, system electric damping has been thoroughly investigated on both electrical side and mechanical side. The best power output corresponding electrical resistance is identical to the generator internal resistance while the best gear ratio of 3.5 is determined via both simulation and tank test. Furthermore, the system's PAR has been investigated by analyzing the trend of the peak occurrence. Tank test data shows the HWCEC's output power peak occurrence is at roughly 20 percent located at its PAR average. Therefore, the HWCEC system can promote energy harvesting efficiency to the combined system design, and improve its reliability from a significantly reduced peak to average ratio. It also gives HWCEC a large variety of deployable locations compared to a regular WEC under more marine environment. Furthermore, a new design of the Hybrid model, Hybrid LITE, is then developed, which not only features the HWCEC features, but also a lightweight, immersive and inflatable design for fast deployment and transportation. Since the system is built with an open water chassis, the overall system robustness is significantly improved since no water sealing is required on the powertrain compared to the HWCEC. / Master of Science / Ocean contains enormous amount of Marine Hydrokinetic (MHK) energy including ocean waves, tidal streams, and ocean current. Marine energy was investigated due to its continuous, massive and high-density hydrokinetic power output. In order to better serve the needs for ocean surface applications and take advantage of high energy density compared to other renewable energy sources, Wave Energy Converters (WEC) has been investigated, which harvests energy from the ocean wave. In the past years of study, it came to our attention that places such as the west coast of the U.S., northern Europe, and the Mediterranean area tend to have both abundant marine wave and current energy. Therefore, a new design of the Hybrid Wave and Current Energy Converter (HWCEC) is investigated for higher power output. In order to combine the energy sources from waves and current, a Hybrid Gearbox was selected to joint the power and unifies the motion from the wave for a higher efficiency. Simulations and 1:10 ratio co-existing wave and current basin test have been conducted for the HWCEC. By using the same system, single wave or current input are used as the baselines and the dual input HWCEC has demonstrated great benefit and potential. The electric damping and the gearbox ratio of the HWCEC are studied for the best power output in both simulation and tank test. The result shows that the HWCEC could promote up to 38-71 percent of electricity output in a regular wave condition, and 79 percent in irregular wave condition. The Peak to Average Ratio (PAR) is a key factor for system's mechanical reliability. The testing shows that the HWCEC can reduce 70 percent of the peak motion and contribute to the average, which is an indirect indicator of the system's better reliability. Furthermore, to align the needs of the design for real-life applications, The Hybrid LITE Converter idea was then developed for special deployment requirements for the future application of the Hybrid system. It has a novel open-system design with the implementation of a newly designed hybrid gearbox. This converter has the potential of promoting the reliability, deployability and weight reduction for easy transportation from its open system design compared to HWCEC. The system modeling could be done as future work varies from the changing deployment locations for higher electric power output.
104

Wiedererkennung ungefilterter und Fourier-gefilterter Schwarzweißmuster duch Honigbienen (Apis mellifera L.)

Efler, Daniela Margarete 02 July 2004 (has links)
Honigbienen (Apis mellifera L.) sind in der Lage mit ihren Komplexaugen visuelle Muster wahrzunehmen und die Musterinformation im Zentralen Nervensystem zu speichern und für Ähnlichkeitsbewertungen wieder abzurufen. Die vorliegende Arbeit zeigt klare Evidenz gegen eine ausschließliche Bewertung von Schwarzweißmustern mit Hilfe von Template-Matching-Mechanismen. Mit systematisch abgewandelten Dressurparadigmen trainierte Bienen bewerteten Muster unabhängig von der erfolgten Dressur stets bevorzugt gemäß eher grober Mustereigenschaften, wie zum Beispiel die Parameter "schwarzer Musterzentralbereich" und "Musterzerstreutheit". Veränderte man in einem weiteren Versuchansatz die Musterinformation der Schwarzweißmuster zudem gezielt durch geeignete Fourier-Filterung, zeigte sich, dass Bienen zur Musterdiskriminierung bereits die Frequenzinformation von 2 - 8 Schwingungen/Bildbreite genügte. Diese Unschärfe der bewerteten Bildinformation ließ sich nicht ausschließlich aus den optischen Eigenschaften des visuellen Apparates der Bienen ableiten. Videodokumentationen und Einzelbildanalyse des Flugverhaltens der Bienen vor den Mustern ergaben zudem keinerlei Hinweise für eine Nutzung des Flugverhaltens als Bewertungsgrundlage zur Musterdiskriminierung. Die erhaltenen Ergebnisse zur Musterdiskriminierung wurden vor dem Hintergrund eines ökonomischen Entscheidungsmodells für menschliches Verhalten, den Frugalheuristiken, diskutiert und Hinweise auf eine ökonomische Bewertungsstrategie der Bienen entsprechend einer Take-The-Best-Heuristik gefunden. / Honeybees (Apis mellifera L.) are able to perceive visual patterns through their compound eyes and store the visual information in the central nervous system for subsequent use in pattern discrimination tasks. This thesis provides clear evidence against the assumption that pattern discrimination relies exclusively on template matching mechanisms. Bees discriminated pairs of patterns preferential using extracted pattern parameters. Within this thesis the preferred parameters of the bees following the training paradigms were coarse parameters such as "black centre" and "pattern disruption". In experiments with Fourier filtered patterns the frequency information of the patterns were additionally reduced. The results showed that bees could discriminate patterns using only 2 - 8 cycles/pattern-width of the frequency information. The fuzziness of the exploited visual information could not be assigned to restrictions of the visual system of bees. Additional documentation and single picture analysis of the videotaped flight behaviour in front of the patterns provided no evidence for bees using their flight behaviour in order to enhance the pattern discrimination ability. Application of economic human decision models (frugal heuristics) to the behavioural results showed clues that bees'' decisions could be explained with the help of the Take-The-Best-heuristic.
105

Cláusula take or pay em contratos de longo prazo

Marquez, Rafael Batista 05 March 2018 (has links)
Submitted by Rafael Batista Marquez (rafaelbatistam@gmail.com) on 2018-05-02T23:14:38Z No. of bitstreams: 1 Dissertação_Cláusula take or pay em contratos de longo prazo_2018.pdf: 330267 bytes, checksum: c5bd1744b4cfab208102e4084d40c14b (MD5) / Rejected by Thais Oliveira (thais.oliveira@fgv.br), reason: Prezado Rafael, boa noite. Para que possamos aprovar seu trabalho, serão necessárias as seguintes alterações: - Em todas as páginas onde se encontram o título da sua Dissertação, deve ser com letra MAIÚSCULA; - A ficha catalográfica deve estar da maneira que foi enviada (incluindo as informações que estão fora do quadro); - A Banca Examinadora deve estar alinhada ao lado direito da página, (seguindo a linha do "texto?" e da data de aprovação), e também deve constar o campo de conhecimento (que deve estar na linha acima da data da aprovação); - Dedicatória centralizada. Qualquer dúvida, entre em contato. Obrigada. mestradoprofissional@fgv.br on 2018-05-04T00:01:59Z (GMT) / Submitted by Rafael Batista Marquez (rafaelbatistam@gmail.com) on 2018-05-07T15:07:57Z No. of bitstreams: 1 Dissertação_Cláusula take or pay em contratos de longo prazo_2018.pdf: 338022 bytes, checksum: b6ede93cff6eb6637717a848cf37ca06 (MD5) / Approved for entry into archive by Thais Oliveira (thais.oliveira@fgv.br) on 2018-05-08T23:53:27Z (GMT) No. of bitstreams: 1 Dissertação_Cláusula take or pay em contratos de longo prazo_2018.pdf: 338022 bytes, checksum: b6ede93cff6eb6637717a848cf37ca06 (MD5) / Approved for entry into archive by Suzane Guimarães (suzane.guimaraes@fgv.br) on 2018-05-09T12:33:15Z (GMT) No. of bitstreams: 1 Dissertação_Cláusula take or pay em contratos de longo prazo_2018.pdf: 338022 bytes, checksum: b6ede93cff6eb6637717a848cf37ca06 (MD5) / Made available in DSpace on 2018-05-09T12:33:16Z (GMT). No. of bitstreams: 1 Dissertação_Cláusula take or pay em contratos de longo prazo_2018.pdf: 338022 bytes, checksum: b6ede93cff6eb6637717a848cf37ca06 (MD5) Previous issue date: 2018-03-05 / O escopo deste trabalho consiste na análise do racional e do funcionamento da cláusula take or pay, largamente utilizada em contratos de longo prazo, usualmente em contratos de fornecimento. Para tanto, tratar da tipicidade (social) da cláusula take or pay mostrou-se necessário. Isso porque, abordou-se a qualificação e interpretação da obrigação decorrente da cláusula e a sua finalidade, tendo em vista a boa-fé objetiva e o dever de cooperação entre as partes. Indo além, abordou-se a natureza jurídica da cláusula take or pay, considerando a inafastável e necessária prefixação dos valores a serem pagos em caso de descumprimento da obrigação. Na sequência, analisou-se a aplicabilidade do artigo 413 do Código Civil. Por derradeiro e a fim de apresentar aspectos propositivos, abordou-se a importância do cuidado com a redação contratual, bem como algumas recomendações práticas sobre a cláusula take or pay, endereçando algumas preocupações quando do seu uso, ainda pouco amadurecido no Brasil. Assim, acredita-se que o presente estudo contribuirá para o desenvolvimento do uso da cláusula de forma previsível e respeitando a segurança jurídica almejada nas relações contratuais. / This work consists on the analysis of the rationale and practice of take or pay clause, widely applied in long-term contracts, usually in supply agreements. To do so, dealing with the typicity (social) of the take or pay clause was necessary. It was taken into account the qualification and interpretation of the obligation provided in the clause and its purpose, vis-à-vis the good faith principle and the cooperation duty between the parties. Beyond that, this study aimed to address the legal nature of take or pay clause, as the due values are pre-determined (liquidated damages) in case of default. In addition to that, for a comprehensive understanding, the study also evaluated the applicability of article 413 of the Brazilian Civil Code The study propositional approach focused on the importance of the contract wording and recommends some practical measures for the clause legal writing, which is still incipient in Brazil. Based on that, the author believes that this study may contribute to enable the development of the take or pay clause in a predictable manner respecting the legal safety in the contractual relations.
106

Analysis of the energy consumption of the powertrain and the auxiliary systems for battery-electric trucks / Analys av energiförbrukningen i drivlinan samt för hjälpsystemen för batterielektriska lastbilar

Song, Guanqiao January 2020 (has links)
The electrification of the truck is crucial to meet the strategic vision of the European Union (EU) to contribute to net-zero greenhouse gas emissions for all sectors of the economy and society. The battery-electric truck is very efficient to reduce the emissions and has also a lower Total Cost of Ownership (TCO) compared to diesel trucks. Thus, the energy consumption of the battery-electric truck needs to be analysed in detail, and the differences in the conventional powertrain, recuperation by regenerative braking during driving and charging during standing, need to be considered. This master thesis aims to analyse the energy consumption of the battery-electric truck during driving and standing charging. For driving cycle simulation the Vehicle Energy Consumption calculation TOol (VECTO) and MATLAB are used. Different variations, such as payload, rolling resistance, air drag, and Power Take Off (PTO), are considered in the driving cycle simulation. The driving cycle simulation is verified by calculating the energy balance and compared with the on-road test results. For the standing charging simulation, MATLAB is used to analyse the charging loss with different battery packs and charging speeds. The results are shown with the Sankey diagram and other illustrative tools. Seen from the simulation results, the usable energy of the battery pack is enough for the truck to complete the designed driving cycle. The main loss in the powertrain is the Power Electronic Converter (PEC) and the electric machine. To increase the range and reduce energy loss, using a higher efficiency PEC and electric machine is an efficient method. For the charging simulation, the current Combined Charging System (CCS) standard charging station can charge the battery-electric truck with adequate voltage and reasonable charging time. The main loss during the charging comes from the charging station. / Elektrificering av lastbilen är avgörande för att uppfylla Europeiska Unionens (EUs) strategiska vision att bidra till nettonollutsläpp av växthusgaser för alla sektorer i samhället. Den batterielektriska lastbilen är väldigt effektiv för att reducera utsläppen och är också mer ekonomisk med en lägre Total Cost of Ownership (TCO) jämfört med diesel lastbilar. Således behöver energiförbrukningen för den batterielektriska lastbilen analyseras i detalj, och skillnaderna i den konventionella drivlinan, återhämtning genom regenerativ bromsning under körning och laddning, måste övervägas. Detta examensarbete syftar till att analysera energiförbrukningen för den batterielektriska lastbilen under körning och laddning. För körcykelsimuleringar används the Vehicle Energy Consumption calculation TOol (VECTO) och MATLAB. Olika variationer, såsom nyttolast, rullmotstånd, luftmotstånd och Power Take Off (PTO), beaktas i körcykelsimuleringen. Körcykelsimuleringen verifieras genom att beräkna energibalansen som jämförs med experimentella testresultat utförda på väg. För laddningssimuleringen används MATLAB för att analysera laddningsförlusten med olika batteripaket och laddningshastigheter. Resultaten visas med Sankey diagram och andra illustrativa verktyg. Simuleringsresultaten visar att batteripaketets användbara energi är tillräckligt för att lastbilen ska kunna slutföra den planerade körcykeln. Den största förlusten i drivlinan är kopplat till the Power Electronic Converter (PEC) och den elektriska maskinen. För att öka räckvidden och minska energiförlusten är det ett effektivt sätt att en använda PEC och en elektrisk maskin med högre effektivitet. För laddningssimuleringen kan den nuvarande stationen med Combined Charging System (CCS) standard ladda batteriladdaren med tillräcklig spänning och med rimlig laddningstid. Huvudförlusten under laddningen kommer från laddstationen.
107

Simulation d'un réseau de neurones à l'aide de transistors SET

Trinh, Franck Ky January 2010 (has links)
Ce mémoire est le résultat d'une recherche purement exploratoire concernant la définition d'une application de réseaux de neurones à base de transistors monoélectroniques (Single-Electron Transistor, SET). Il dresse un portait de l'état de l'art actuel, et met de l'avant la possibilité d'associer les SET avec la technologie actuelle (Field Electron Transistor, FET). La raison de cette association est que les SET peuvent être perçus comme un moyen de changement de paradigme, c'est-à-dire remplacer une fonction CMOS occupant une grande place par un dispositif alternatif présentant de meilleures performances ou équivalentes. Par l'intermédiaire de leurs caractéristiques électriques peu ordinaires au synonyme de"l'effet de blocage de Coulomb", les SET ont le potentiel d'être exploités intelligemment afin de tirer profit sur la consommation énergétique essentiellement. Cette problématique est présentée comme une des propositions alternatives"Beyond CMOS" aux termes de la diminution géométrique des transistors FET à la lumière de l'ITRS. Cette recherche propose d'exposer des circuits électroniques de technologie MOS complétés à l'aide de SET (circuits hybrides) et de montrer que l'on est capable de les remplacer ou les compléter (partiellement) dans des architectures à réseau de neurones. Pour cela, des simulations sous logiciel Cadence Environnement permettront de valider le comportement des circuits sur plusieurs critères tels que la vitesse de réponse et la consommation énergétique, par exemple. En résultat, seront proposées deux architectures à réseaux de neurones de fonctions différentes : une architecture Winner-Take-All et un générateur de spikes en tension. La première étant inspirée d'une publication provenant de GUIMARAES et al., veut démontrer qu'à partir d'une architecture SET existante, il est envisageable de se l'approprier et de l'appliquer aux paramètres des SET du CRN[indice supérieur 2] augmentant donc nos chances de pouvoir les concevoir dans notre groupe de recherche. Le second axe est la simulation d'un circuit capable de générer des signaux à spikes sans perte d'information, ce qui requerrait un nombre considérable de transistors FET sans l'utilisation de SET, mettant donc en valeur la réduction de composants.
108

A Knowledge-based system framework for semantic enrichment and automated detailed design in the AEC projects

Aram, Shiva 08 June 2015 (has links)
Adoption of a streamlined BIM workflow throughout the AEC projects’ lifecycle will provide the project stakeholders with the rich information embedded in the parametric design models. Users can incorporate this rich information in various activities, improving efficiency and productivity of project activities and potentially enhancing accuracy and reducing errors and reworks. Two main challenges for such a streamlined information flow throughout the AEC projects that haven’t been sufficiently addressed by previous research efforts include lack of semantic interoperability and a large gap and misalignment of information between available BIM information provided by design activities and the required information for performing preconstruction and construction activities. This research effort proposes a framework for a knowledge-based system (KBS) that encapsulates domain experts’ knowledge and represents it through modularized rule set libraries as well as connected design automation and optimization solutions. The research attempts to provide a methodology for automatic semantic enrichment of design models as well as automated detailed design to fill the information gap between design and preconstruction project activities, streamlining BIM workflow and enhancing its value in the AEC projects.
109

Les processus individuels et organisationnels de construction de la santé au travail : prévention de la santé mentale au travail et analyse de dispositifs organisationnels / The individual and organizational processes in the construction of health in the workplace : prevention of mental health at work and analysis of organizational arrangements

Rouat, Sabrina 14 January 2010 (has links)
Cette thèse a pour objectif d’apporter des résultats pour la connaissance relative au processus d’intervention dans l’organisation en matière de prévention de la santé psychique au travail. Après avoir mis en lien les processus de construction de la santé au travail et pris connaissance des facteurs qui soutiennent la réussite des interventions de prévention primaire, l’analyse permet de questionner la correspondance possible entre ces deux champs de recherche. L’analyse de sept cas d’intervention apporte des éléments pour saisir les conditions qui favorisent la décision de changement de l’organisation. Le processus d’intervention est conçu comme un moyen de produire une dynamique de maturation organisationnelle sur la question de la santé psychique au travail et susceptible d’améliorer la coopération entre acteurs. Enfin, en interrogeant l’interaction entre l’individu et l’organisation, cette thèse analyse les logiques de recours à des formes d’aides pour des salariés en difficulté. Ce détour permet d’interroger les causes du non-recours à des dispositifs organisationnels de prévention et à identifier à quelles conditions ils peuvent être efficaces et utilisés. / We aim to contribute to the study of intervention process in the organization for mental health prevention in the workplace. We begin by linking the different health-building processes in the workplace. We then take into account the factors that support the success of primary prevention interventions. Our analysis then allows for exploration of possible relationship between these two research fields. Our examination of seven cases studies of prevention interventions brings elements of understanding to the conditions that best favour the decision to change an organization. The intervention process is designed as a way to produce a dynamic organizational maturation on the issue of mental health in the workplace, which is likely to improve cooperation between actors. Finally, by questioning interactions between the individual and the organization, this dissertation analyzes the logic behind the non-take-up strategies used by troubled employees. It allows us to examine why arrangements within an organization are not used and to identify under what conditions they can be efficient and well used.
110

Forma??o profissional na escola de enfermagem Wenceslau Braz : o ensino do cuidar em curso de gradua??o em enfermagem / Academic education at Wenceslau Braz Nursing School : taking care teaching in graduation course nursing

Hertel, Valdin?a Luiz 25 June 2003 (has links)
Made available in DSpace on 2016-04-04T18:32:59Z (GMT). No. of bitstreams: 1 Valdinea Luiz Hertel.pdf: 12672724 bytes, checksum: 3eabf9a00f013b0b7deca437261dff97 (MD5) Previous issue date: 2003-06-25 / The present work is in the research line Institutional Avaliation . Its purpose is to know taking care conceptions in Nursing, identify used strategies to the teaching of taking care, reflect on the responsibility of the discipline: Fundamental Semiology Notions in the construction of taking care in Nursing as weel to understanding the logical applied to Methodological resorts choice to the process of taking care teaching. The researched people were 15 academic teaching staff and professionals in Nursing at Wenceslau Braz Nursing School. We chose to congratulate the investigation, having as a theorical methodological support the quality approach in which one it was pointed the obtained data in mainly three categories to the elaborating analyses: Taking care conceptions in Nursing, Pedagogical principles of taking care teaching, The objective of the disciplines in professional Education. The results concerning to the teaching staff are divided among technical, humanist and changing views. The ones who defende humanistic conception keep valueing the the technical racionality. We got to the conclusion that we need to rescue in the Nursing School the Care Education centered in the human approach through the reorganization of the Pedagogical work. / Este trabalho est? inserido na Linha de Pesquisa Avalia??o Institucional . Teve como objetivos conhecer as concep??es de cuidar em Enfermagem, identificar as estrat?gias utilizadas para o ensino do cuidar, refletir sobre a responsabilidade da disciplina No??es Fundamentais de Semiologia na constru??o do cuidar em Enfermagem e, tamb?m, compreender a l?gica utilizada na escolha de recursos metodol?gicos para o processo do ensino do cuidar. Os sujeitos da pesquisa foram quinze docentes com forma??o acad?mica e profissional em Enfermagem da Escola de Enfermagem Wenceslau Braz. Optamos por privilegiar a investiga??o, tendo como suporte te?rico-metodol?gico a abordagem qualitativa, na qual delimitamos os dados obtidos em tr?s categorias constru?das a priori para elabora??o da an?lise: Concep??es de Cuidar em Enfermagem, Princ?pios Pedag?gicos no Ensino do Cuidar e o Papel das Disciplinas na Forma??o Profissional . Constatamos que quanto ? concep??o de cuidar em Enfermagem, os docentes encontram-se divididos entre a vis?o tecnicista, humanista e a de transi??o. Os que defendem a concep??o human?stica continuam valorizando a racionalidade t?cnica. Chegamos ? conclus?o de que precisamos resgatar na Enfermagem uma educa??o centrada na humaniza??o do cuidado, atrav?s da reorganiza??o do trabalho pedag?gico.

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