• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 207
  • 57
  • 12
  • 4
  • 3
  • 3
  • 3
  • 2
  • 1
  • 1
  • 1
  • Tagged with
  • 312
  • 113
  • 107
  • 103
  • 91
  • 91
  • 91
  • 59
  • 55
  • 50
  • 48
  • 46
  • 41
  • 40
  • 40
  • 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.
161

Common Airborne Processing System (CAPS) 2.0: Data Reduction Software on a Personal Computer (PC)

Hunt, Trent W. 10 1900 (has links)
International Telemetering Conference Proceedings / October 27-30, 1997 / Riviera Hotel and Convention Center, Las Vegas, Nevada / CAPS 2.0 provides a flexible, PC-based tool for meeting evolving data reduction and analysis requirements while supporting standardization of instrumentation data processing. CAPS 2.0 will accept a variety of data types including raw instrumentation, binary, ASCII, and Internet protocol message data and will output Engineering Unit data to files, static or dynamic plots, and Internet protocol message exchange. Additionally, CAPS 2.0 will input and output data in accordance with the Digital Data Standard. CAPS 2.0 will accept multiple input sources of PCM, MIL-STD-1553, or DDS data to create an output for every Output Product Description and Dictionary grouping specified for a particular Session. All of this functionality is performed on a PC within the framework of the Microsoft Windows 95/NT graphical user interface.
162

Design of reinforced concrete deep beams for strength and serviceability

Birrcher, David Barra 01 June 2010 (has links)
Several reinforced concrete bent caps (deep beams) in Texas have developed significant diagonal cracks in service. The cracking in two bent caps was so extensive that costly retrofits were implemented to strengthen the structures. Strut-and-tie modeling is currently recommended in most U.S. design specifications for the design of reinforced concrete bent caps and deep beams. Designers have expressed concerns with the lack of clarity and serviceability-related considerations in strut-and-tie model design provisions. Due to concerns with strut-and-tie modeling design provisions and field problems of in-service bent caps, TxDOT Project 5253 was funded. Several tasks conducted within Project 5253 are addressed in this dissertation. The effects of minimum web reinforcement and member depth on the strength and serviceability behavior of deep beams are presented. The transition between deep beam shear capacity and sectional shear capacity near a shear-span-to-depth (a/d) ratio of 2 is addressed. A service-load shear check to limit diagonal cracking in service is outlined. Lastly, a simple chart that correlates the maximum width of diagonal cracks in a deep beam to its residual capacity is developed. To accomplish the objectives of Project 5253, thirty-seven tests were conducted on reinforced concrete beams with the following cross-sectional dimensions: 21”x23”, 21”x42”, 21”x44”, 21”x75”, and 36”x48.” The specimens were loaded with a/d ratios of 1.2, 1.85, and 2.5. The test specimens are among the largest reinforced concrete deep beams in the literature. To supplement the findings of the experimental program, a database of deep beam test results was compiled. Entries in the database that lacked sufficient information and that did not meet established cross-sectional size or web reinforcement criteria were filtered from the database. The use of the database in conjunction with the experimental program enabled each objective to be addressed from both broad and specific viewpoints. Several recommendations for improving the strength and serviceability design of deep beams are presented including a minimum web reinforcement requirement, provisions to ease the transition between calculated deep beam and sectional shear capacity, and a design check to limit diagonal cracking in service. / text
163

Effects of closure type on consumers' perception of wine quality

Jorgensen, Emily M. 12 August 2004 (has links)
Natural corks have long been used as wine closures. However, they are associated with causing multiple adverse effects to the wine they are attempting to preserve. Alternative closures such as synthetic corks and screw caps were developed in order to reduce and/or eliminate these problems. However, the major cause of concern regarding these closures is of consumers' acceptance. The effect of how three types of closures (Natural Cork, Synthetic Cork and Screw Cap) affected wine consumers' perceptions of the quality of wine was examined in this study. This project was divided into two experiments. The first experiment determined if frequent wine consumers could detect sensorial differences between the three closure types. The second experiment ascertained if and how regular wine consumers' perceptions were altered based on the type of closure with which the wine samples were bottled. It was determined that the wine consumers could not significantly detect a difference between any of the three closure type samples based only on sensory stimuli. The results from the second experiment found for the Chardonnay samples, the knowledge that the wine samples came from a natural cork or a synthetic cork did not significantly affect the liking, quality or purchase intent scores. However, when the panelists knew that the sample was bottled with a screw cap, they thought it was of lower quality, were less willing to buy a wine like the sample and they lowered the price they were willing to pay. For the Merlot samples, knowledge that the sample came from a natural cork caused the wine consumers to significantly increase both their opinions of the quality of the wine and the amount they were willing to pay for the wine. When they knew that the sample was bottled with a screw cap, they reduced the price they would pay for the wine. / Graduation date: 2005
164

Estado de la gestión administrativa del terapeuta constructivista cognitivo y caracterización clínica y sociodemográfica de los casos atendidos desde 2009 a 2013 en la clínica de atención psicológica (CAPs) de la Universidad de Chile / Revisión y análisis estadístico de fichas de pacientes atendidos

Melgarejo Hormazábal, Andrea P., Paredes González, David A. January 2014 (has links)
Psicólogo / El presente trabajo trata sobre la descripción del estado de la gestión administrativa del terapeuta Constructivista Cognitivo y la caracterización clínica y sociodemográfica de los casos atendidos por éstos entre 2009 y 2013 en la Clínica de Atención Psicológica (CAPs) de la Universidad de Chile, la cual consistió en el registro de un número determinado de categorías, a partir de la revisión de fichas de pacientes atendidos en este centro. Estas categorías permitieron medir estadísticamente las características clínicas y sociodemográficas de los casos atendidos en el CAPs y la labor administrativa de los terapeutas. La muestra estudiada está constituida entonces, por casos de pacientes atendidos por psicólogos Constructivistas Cognitivos, cuyos procesos psicoterapéuticos están cerrados, desde el año 2009 al 2013 y cuya edad supera los 18 años. En base a las categorías registradas, se pudo conocer el funcionamiento que ha tenido el modelo en el CAPs, generándose información valiosa que se podrá traducir en recomendaciones y decisiones concretas en la institución
165

A conceptual design of a Software Base Management System for the Computer Aided Prototyping System

Galik, Daniel 12 1900 (has links)
Approved for public release; distribution is unlimited / This thesis builds upon work previously done in the development of the Computer Aided Prototyping System (CAPS) and the Prototype System Description Language (PSDL), and presents a conceptual design for the Software Base Management System (SBMS) component of CAPS. The SBMS is the most critical component of CAPS as it will coordinate the retrieval and integration of Ada software modules. A robust SBMS that enables a software system designer to successfully retrieve reusable Ada components will expedite the prototype development process and enhance designer productivity. Implementation of the conceptual design will be the basis for further work in this area. (Ada is a registered trademark of the United States Government, Ada Joint Program Office.) / http://archive.org/details/conceptualdesign00gali / Lieutenant Commander, United States Navy
166

A Static Scheduler for critical timing constraints

Marlowe, Laura C. 12 1900 (has links)
Approved for public release; distribution is unlimited / The Computer Aided Prototyping System (CAPS) and the Prototype System Description Language (PSDL) represent a pioneering effort in the field of software development. The implementation of CAPS will enable software engineers to automatically validate design specifications and functional requirements early in the design of a software system through the development and execution of a prototype of the system under construction. Execution of the prototype is controlled by an Execution Support System (ESS) within the framework of CAPS. One of the critical elements of the ESS is the Static Scheduler which extracts critical timing constraints and precedence information about operators from the PSDL source that describes the prototype. The Static Scheduler then uses this information to determine whether a feasible schedule can be built, and if it can, constructs the schedule for operator execution within the prototype. / http://archive.org/details/staticschedulerf00marl / Lieutenant Commander, United States Navy
167

The Small Area Fair Market Rent System in the Richmond Region: An Evaluation of Current Voucher Concentration, Move to Opportunity Counseling, and Value Capture Planning

Bray, Catherine L 01 January 2016 (has links)
In June of 2015, the U.S. Department of Housing and Urban Development released an Advance Notice of Proposed Rulemaking to establish a more effective Fair Market Rent System using Small Area Fair Market Rents (SAFMRs) in the Housing Choice Voucher Program (HCVP) instead of the current 50th Percentile FMRs. The 50th Percentile FMR is currently in use in the Richmond, Virginia region, and the region is likely to be among early adopters of the new SAFMR System. This thesis assesses existing conditions that will affect implementation of the Small Area Fair Market Rent (SAFMR) System. First, it evaluates where voucher holders have located and concentrated with limited mobility counseling and without the SAFMR System intervention. Second, this evaluation assesses the theory of opportunity and targeting metrics currently in use by the local Move to Opportunity Program administered in the region, because the SAFMR System has a stated objective to enable voucher holders to de-concentrate from low opportunity areas. Finally, this evaluation assesses the SAFMR System’s potential for value capture, estimating total savings and a discrete number of potential new vouchers that may be created with those savings. This research attempts to answer these dimensions of SAFMR System implementation by evaluating key characteristics of current voucher holder concentration in the metropolitan region.
168

Análise experimental e numérica de blocos rígidos sobre duas estacas com pilares de seções quadradas e retangulares e diferentes taxas de armadura / Experimental and numerical analysis of rigid two-pile caps with square and retangular column and different rates of column reinforcement

Munhoz, Fabiana Stripari 25 September 2014 (has links)
Esta pesquisa realiza a análise do comportamento estrutural de blocos rígidos de concreto armado sobre duas estacas submetidos à ação de força vertical centrada, com pilares de seções quadradas e retangulares e diferentes taxas de armaduras de pilares. Nestes elementos utilizam-se o método das Bielas e Tirantes para o projeto estrutural, mas normalmente não se considera a influência da seção geométrica dos pilares e suas taxas de armadura no projeto do bloco. Apresenta-se um estudo experimental de doze modelos de blocos sobre duas estacas, na escala 1:2. Foi desenvolvida uma análise numérica tridimensional e não linear, pelo método dos elementos finitos, com o auxílio de um programa de computador. Com a análise experimental e numérica foi investigada a distribuição do fluxo das tensões principais de compressão e tração nos modelos e constataram-se diferenças na transmissão de forças para os blocos quando se altera a taxa de armadura e a seção transversal dos pilares. Esta constatação modifica o modelo de Biela e Tirante inicialmente adotado. As deformações em armaduras construtivas complementares também foram estudadas possibilitando o entendimento do modelo estrutural. Um modelo de Bielas e Tirantes para blocos sobre estaca com pilares alongados foi proposto. / This research presents an analysis of the rigid two-pile caps structural behavior. The models were subjected to force action centered and supported columns with different rate of armor and square and rectangular cross sections. These elements can be rigid or flexible, rigid pile-caps can be sized using the Method of Strut and Tie. In most cases the Method of Strut and Tie and the influence of column reinforcement are not considered in the pile-cap´s structural projects. This research presents an experimental investigation of two-pile caps with the objective of improve criteria structural projects. Twelve rigid two-pile caps were builded using 1:2 scaled models. Three-dimensional numerical analyses using software based on element finite method (FEM) were developed considering the reinforced concrete nonlinear behavior. Using results of experimental analysis and numerical analysis an investigation of the flow distribution of the principal stresses of compression and tension in the models was performed, differences in the transmission of forces to the pile-caps, when changing the reinforcement ratio and the cross section of the columns, were detected. The initial model of strut and tie may be modified due to results. The understanding of the structural model was also possible by analysis of the stirrups and upper constructive reinforcement stress-strain behavior. A strut and tie model for pile-caps with an elongated rectangular column was proposed.
169

Análise numérica e experimental de blocos de concreto armado sobre duas estacas submetidos à ação de força centrada e excêntrica / Numerical and experimental analysis of two pile caps submitted to the action of a load centered and eccentric

Delalibera, Rodrigo Gustavo 02 June 2006 (has links)
A pesquisa teve como objetivo analisar e discutir o comportamento de blocos de concreto armado sobre duas estacas submetidos à ação de força centrada e excêntrica. Desenvolveu-se uma análise numérica tridimensional não-linear de blocos de concreto armado sobre duas estacas. A análise numérica levou em consideração a fissuração do concreto e a influência das armaduras no comportamento estrutural dos blocos. Por meio da análise numérica, foi possível perceber o comportamento e a forma geométrica das bielas de compressão, com isso, obteve-se melhor entendimento do modelo de bielas (escoras) e tirantes aplicado a blocos de concreto armado sobre duas estacas. A geometria observada nos modelos numéricos analisados preliminarmente difere da usualmente sugerida por vários autores. Realizou-se investigação experimental de blocos, com o fim principal de observar, de modo mais abrangente, a geometria das bielas de compressão. A instrumentação foi posicionada nas faces dos blocos com extensômetros espaçados de modo a ocuparem boa parte da largura e, conseqüentemente, indicarem as suas geometrias. A análise experimental de blocos sobre duas estacas submetidos à ação de força excêntrica permitiu observar o comportamento das bielas e tirantes que diferem dos observados quando a força é centrada. Também foi analisada a eficiência dos ganchos das barras de aço que compõem os tirantes, verificando-se que os ganchos podem ser omitidos sem prejuízo da segurança estrutural dos blocos. Em função dos resultados obtidos por meio das análises experimental e numérica desenvolveram-se modelos de bielas e tirantes aplicados a blocos sobre duas estacas / The research had as objective to analyze and to argue about the behavior of two pile caps submitted to the action of a centered and eccentric load. A nonlinear three-dimensional numerical analysis of two pile caps was developed. The numerical analysis included the cracking and the influence of the reinforcement in the structural behavior of the pile caps. By the numerical analysis, it was possible to perceive the behavior and the geometric form of the strut, with this understand the model strut-and-tie applied to the two pile caps. The geometry observed in the numerical models analyzed at first differs from the usually suggested by some authors. This project realized experimental tests of piles caps to observe the geometry of the struts. The instrumentation was located in the faces of the pile caps with spaced strain-gages in order to occupy good part of the width and, consequently, indicate its geometry. The experimental analysis of two pile caps submitted to the eccentric load allowed the behavior observation of the strut and tie that differ from the one observed when the load was centered. Also the efficiency of the hooks of the reinforced bar was analyzed, therefore, in the experimental analysis of pile caps already developed, it was verified that the hooks can be omitted without damage of the structural security of the pile caps. For treating the procedure defined in the project, and taking advantage of the experimental analysis realized, it was understood that this requirement can be analyzed and that the results will bring benefits to the project. In function of the results obtained through the experimental and numeric analysis strut-and-tie models were developed to be applied in two pile caps
170

Indicadores psicossociais associados ao consumo de álcool e outras drogas por adolescentes

Cavalheiro, Herondina de Freitas January 2017 (has links)
O uso abusivo de álcool e drogas na adolescência acarreta graves consequências no desenvolvimento físico, psicológico e social. Os profissionais de saúde necessitam informações que possam ser úteis na elaboração de estratégias preventivas e terapêuticas mais eficazes. O objetivo do presente estudo foi traçar o perfil dos adolescentes em tratamento no CAPS AD do município de Bagé/RS, a partir de indicadores psicossociais que podem estar associados ao consumo de álcool e outras drogas. Os participantes foram os adolescentes com idades de 12 a 17, que frequentam o referido CAPS AD. Foram utilizados uma ficha sociodemográfica e os testes DUSI (Drug Use Screening Inventory) e IHSA (Inventário de Habilidades Sociais). As análises estatísticas descritivas e inferenciais foram feitas por meio do SPSS (versão 21). Dentre os principais resultados, destaca-se que os adolescentes atendidos no Ambulatório são, em sua maioria do sexo masculino; tem em média 15 anos e meio; na sua maioria moram com o pai e/ou mãe; apresentam diversos fatores de risco na família; são estudantes com defasagem escolar; tem amigos e apresentam um bom repertório de habilidades sociais; fazem uso elevado de tabaco e tem como droga preferida a maconha. / Drugs and alcohol abuse in adolescence leads to serious consequences in physical, psychological and social development. Healthcare professionals need information which might be useful in preparing more effective therapeutic and preventive strategies. This study aims to describe the profile of teenagers under treatment at CAPS AD in the city of Bagé, RS, based on psychosocial indicators which might be associated to alcohol and drugs consumption. The subjects in this study were 12 - to 17 -year old teenagers who attend the aforesaid CAPS AD. In order to do so, a socio-demographic record as well as DUSI (Drug Use Screening Inventory) and IHSA (Social Skills Inventory) were used. The descriptive and inferential statistics analyses were carried out through SPSS (version 21). Among the main results, the study showed that most teenagers attended to at the medical clinic are male; around 15 years of age; mosly live with the father and/or mother; show several risk factors in the family; lag behind at school; have friends and have a good repertory of social skills; are heavy smokers and their preferred drug is marijuana.

Page generated in 0.0526 seconds