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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

Software Decommutation and Integration

Guadiana, Juan, Benitez, Jesus, Pasillas, Roger 10 1900 (has links)
ITC/USA 2005 Conference Proceedings / The Forty-First Annual International Telemetering Conference and Technical Exhibition / October 24-27, 2005 / Riviera Hotel & Convention Center, Las Vegas, Nevada / The Telemetry Data Center (TDC) at White Sands Missile Range (WSMR), New Mexico recently targeted analog best source selectors for replacement along with their associated signal handling equipments. The commercial selectors available offered no better performance, so TDC engineers circulated a "White Paper" on real time correlation based compositing. Within two years a Correlating Source Selector (CSS) was fielded successfully. The CSS’s bridging feature unexpectedly opened the door to a ubiqituous software decommutator (decom) that has catalyzed a complete “make-over” of the entire TDC architecture. Hardware and software interaction in a decom is different with the CSS. While performing its correlation tasks the CSS is able to provide raw data over TCP/IP directly to the end application. The CSS places the data in computer friendly frame aligned form and the decommutation may be performed in software. The converse is similarly simple, a data file maybe transferred to the CSS for commutation into PCM. This white paper describes the morphing of software decommutation into a commodity, integrated into each end device, be it graphics display, Disk or Chart recorder. The result is an interesting consolidation that spawns a new functionally integrated Telemetry Data Center ( iTDC). This integrated Display Decom (iDD) concept has been demonstrated on Apple G5 RISC computers.
102

Telemetry Recorders and Disruptive Technologies

Kortick, David 10 1900 (has links)
ITC/USA 2009 Conference Proceedings / The Forty-Fifth Annual International Telemetering Conference and Technical Exhibition / October 26-29, 2009 / Riviera Hotel & Convention Center, Las Vegas, Nevada / Telemetry data recorders are not immune to the effects that a number of disruptive technologies have had on the telemetry industry. Data recorder designs today make use of data buses, storage types and graphical user interfaces that are constantly evolving based on the advances of personal computer and consumer electronics technologies. Many of these recorders use embedded designs that integrate disruptive technologies such as PCI Express for realtime data and signal processing, SATA interfaces for data storage and touchscreen technologies to provide an intuitive operator interface. Solid state drives also play a larger role in the latest recorder designs. This paper will explore the effects of these technologies on the latest telemetry recorders in terms of the benefits to the users, cost of implementation, obsolescence management, and integration considerations. The implications of early adoption of disruptive technologies will also be reviewed.
103

Computed Tomography Perfusion Imaging In Acute Ischemic Stroke: Do The Benefits Outweigh The Costs?

Willows, Brooke 25 May 2017 (has links)
A Thesis submitted to The University of Arizona College of Medicine - Phoenix in partial fulfillment of the requirements for the Degree of Doctor of Medicine. / Current stroke imaging protocol at Barrow Neurological Institute calls for a noncontrast computed tomography (NCCT), a computed tomography angiography (CTA), and a computed tomography perfusion (CTP) at the time of presentation to the emergency department (ED), and follow up imaging includes magnetic resonance diffusion weighted imaging (MR‐DWI). This information is used to determine the appropriateness and safety of tissue plasminogen activator (tPA) administration. Previous studies have shown the risk for post‐tPA hemorrhagic conversion rises significantly as the size of the infarct core increases. Thus, it is of great importance to have an accurate method of measuring core infarct size in patients presenting with acute ischemic stroke. The purpose of our study is to determine if CTP correctly identifies the infarct core and if post‐tPA hemorrhagic conversion is related to the size of the infarct core and/or the accuracy of CTP in identifying the infarct core. The ultimate goal is to improve patient outcomes by decreasing the morbidity and mortality associated with tPA administration. This study is a retrospective chart review of all patients who presented to the ED during a one year period with signs and symptoms of acute ischemic stroke who then subsequently received tPA. Imaging was also reviewed, including the NCCT, CTA, CTP, and MRDWI for each patient. In this study, MR‐DWI is used as the gold standard for determining the presence or absence of an infarct core. CTP and MR‐DWI are in agreement of the presence of an infarct core in 7 patients, or 10 percent of the time. Similarly, CTP and MR‐DWI are in agreement of the absence of an infarct core in 31 patients, or 44 percent of the time. In the other 32 patients, CTP and MR‐DWI are in disagreement. The percent correlation between CTP and MR‐DWI was found to be 24 percent with a p‐value < 0.05. As for post‐tPA hemorrhagic conversion, 12 percent of patients had hemorrhagic conversion, and when the hemorrhage rate was compared to the size of the infarct core, the odds of post‐tPA hemorrhagic conversion were 56 times higher in the group of patients with infarct cores larger than one‐third of a vascular territory than in patients with smaller infarct cores with a p‐value < 0.001. Although no significant correlation was found between the accuracy of CTP data and the rate of post‐tPA hemorrhagic conversion, patients with concordant CTP and MR data had a 46% lower likelihood of post‐tPA hemorrhagic conversion than did patients with contradictory CTP and MR‐DWI data. Conclusion: Because patients with infarct cores larger than one‐third of a vascular territory are 56 times more likely to hemorrhage than patients with smaller infarct cores and CTP is less accurate than MR‐DWI in identifying the infarct core in patients presenting with acute ischemic stroke, CTP studies should not be part of the acute stroke imaging protocol. Another imaging modality, such as MR‐DWI, may be preferential in the setting of acute ischemic stroke to identify the infarct core.
104

Retrospective Analysis of Injuries Sustained In Vehicle Front‐ and Back‐Overs in a Level I Pediatric Trauma Center

Bendall, William Bryson 26 May 2017 (has links)
A Thesis submitted to The University of Arizona College of Medicine - Phoenix in partial fulfillment of the requirements for the Degree of Doctor of Medicine. / Motor vehicle accidents involving pedestrians are some of the most common and lethal forms of injury for children in the United States. Among younger children, a common mechanism of action for severe trauma is when a vehicle runs over the child in a forward or backward motion at low speed resulting in a blunt crush injury. This typically occurs in non‐traffic settings including driveways, sidewalks, and roadways. Such incidents have been referred to in many different ways in the literature but for the purposes of this paper will be referred to as low speed vehicle run‐overs. This is a retrospective chart review carried out at Phoenix Children’s Hospital in affiliation with the University of Arizona College of Medicine‐Phoenix that categorizes and examines the injuries sustained by patients involved in low speed vehicle runovers occurring between December 2007 and August 2013. Fifty‐five pediatric patients were included with a median age of 24 months and 6 of these patients were fatally injured. Internal injuries were common overall and significantly more common in children ≤24months. Over half of the cohort sustained fractures, with a 24% incidence of skull fractures. All fatalities were the result of traumatic brain injury. Twenty percent of victims required operative intervention. It was concluded that the severity of these types of incidents varies from minimal to life threatening and best care requires close and thorough evaluation by the trauma and emergency department teams.
105

Analýza a aplikace projektového managementu na automatizovaném zpracování telefonních účtů / Analysis and application of project management on automated processing of telephone bills

Shtukar, Natallia January 2010 (has links)
Analysis of the "Automated processing of telephone bills" in a large consulting firm. Use of project management methods: logical framework, analysis of stakeholders, responsibility matrix, milestones chart, PERT analysis.The main objective it to develop the concept, in which it will be better to handle projects in the consulting company in the future. The information for the purposes of this thesis were collected using the method of guided interviews with leading professionals in the company and using the online questionnaire.
106

Statistical Consulting at Draper Laboratory

Richard, Noelle M. 27 August 2014 (has links)
"This Master’s capstone was conducted in conjunction with Draper Laboratory, a non-profit research and development organization in Cambridge, Massachusetts. During a three month period, the author worked for the Microfabrication Department, assisting with projects related to statistics and quality control. The author gained real-world experience in data collection and analysis, and learned a new statistical software. Statistical methods covered in this report include regression analysis, control charts and capability, Gage R & R studies, and basic exploratory data analysis."
107

Centralisering av personalplanering : En fallstudie om effektivisering och processtyrning / Centralization of staff planning : Case study on streamlining and process control

Eriksson, Nina January 2019 (has links)
Keolis conducts public transport on behalf of municipalities around the country. Through locally adapted and sustainable city traffic, Keolis creates value for travelers, society and owners. The company has been wholly owned by the international public transport group Keolis since the autumn of 2010. Keolis is located in Jönköping County, Örebro County, Stockholm County, Västra Götaland, Värmland, Östergötland and Dalarna. The company's working method focuses on putting the traveler's needs in focus, which is to offer the solution that is best for travelers and the environment, regardless of the type of traffic. One step in the company's journey was in 2017 a decision to centralize the personnel planning department to be able to increase steering towards set goals and saving resources. Process and flow activity are two interwoven pillars for successful efficiency improvement work. It is in the process that flow activity arises. In order to streamline flow activity, we need to understand the process The starting point for the project is a preliminary study conducted at the company earlier 2019. The preliminary study analyzed the flow process "preparing the traffic day" within the personnel planning department for the Stockholm area and identified improvement areas ahead of upcoming in-depth analysis that takes place in this work. An action plan for identifying and prioritizing improvement areas at the department is presented. The conclusion states the importance of introducing methodological working methods to enable continuous improvements. Based on the identified areas of improvement, the study is designed to answer the question of what improvement should be prioritize and in what order should the organization implement improvements. The implementation would accrue in working methods and approach to gradually streamline the department after centralization Subsequently, an action plan for identifying and prioritizing improvement areas at the department is presented. The conclusion states the importance of introducing methodological working methods to be able to work with continuous improvements. In the near future, leveling out workflow is necessary for stabilizing the process and providing the opportunity to reach the system limit. There are good chances to further develop the department by changing perspectives on the distribution and introducing new working flows. Improvements to these areas will lead to the gradual fulfillment of the initial goal of centralization in the form of a standard approach and increased productivity and profitability. / Keolis bedriver kollektivtrafik på uppdrag av kommuner runt om i landet. Genom lokalt anpassad och hållbar stadstrafik skapar Keolis värde för resenärerna, samhället och ägarna. Företaget ägs sedan hösten 2010 till 100 procent av den internationella kollektivtrafikskoncernen Keolis. Keolis finns i Jönköpings län, Örebro län, Stockholms län, Västra Götaland, Värmland, Östergötland och Dalarna.  Företagets arbetssätt fokuserar på att sätta resenärens behov i fokus, vilket är att erbjuda den lösning som är bäst för resenärer och miljön, oavsett trafikslag. Ett steg i företagets resa blev under 2017 ett beslut om att centralisera avdelningen personalplanerare för att kunna öka styrningen mot uppsatta mål och uppnå besparing av resurser. Process och flödesaktivitet är två sammanflätade grundpelare för ett lyckat effektiviseringsarbete. Det är i processen som flödesaktivitet uppstår; för att effektivisera flödesaktivitet behöver det finnas förståelse för processen.  Hos Keolis Sverige AB analyseras flödesprocessen ”förbereda trafikdagen” inom avdelningen personalplanering för Stockholmsområdet. Processen ska handla om planering och bemanning av personal för en trafikdag. Målet med denna uppsats har varit att kartlägga dagens flödesschema, analysera problemområden samt ta fram förbättringsförslag. En analys av flödesschema för processen har genomförts, där medarbetare från avdelningen personalplanerare samt trafikområden har varit involverade. Detta för att fånga upp möjliga förbättringar samt skapa en delaktighet inför framtida förändringar. Examensarbetet har avgränsats till att endast analysera Stockholmsområdet. Baserat på de identifierade förbättringsområdena har studien utformats för att besvara frågeställningen om vad organisationen bör prioritera och i vilken ordning organisationen bör genomföra förbättringar i arbetssätt och metoder för att gradvis effektivisera avdelningen efter centralisering. Utgångspunkten för examensarbetet är en förstudie utförd hos företaget tidigare samma år. Förstudien analyserade flödesprocessen ”förbereda trafikdagen” inom avdelningen personalplanering för Stockholmsområdet och identifierade förbättringsområden inför kommande fördjupad analys, vilken har skett i detta arbete.  En handlingsplan för att identifiera och prioritera förbättringsområden hos avdelningen presenteras. Slutsatsen visar vikten av att införa metodiska arbetssätt för att kunna jobba med ständiga förbättringar. I närtid är att jämna ut arbetsflöde nödvändigt för att stabilisera processen och ge möjlighet till att uppnå systemgränsen. Det finns goda chanser till att utveckla avdelningen ytterligare genom att ändra perspektiv på fördelningen och införa nya arbetssätt och fördelningar bland personalplanerare. Förbättringar av dessa områden kommer att leda till gradvis uppfyllelse av det ursprungliga målet för centraliseringen i form av ett enhetligt arbetssätt samt ökad produktivitet och lönsamhet.
108

Proposta de método para desenvolvimento de produtos de moda a partir de técnicas manuais e resíduos de malharia circular de algodão / Methold to develop new garments based on handmade techniques and cotton circular waste

Bertoluci, Cristiane Eloisa 18 September 2018 (has links)
Em contrapartida ao fast fashion está o slow fashion, uma busca pela retomada dos meios de produção da cadeia têxtil, da valorização das técnicas tradicionais de criação e desenvolvimento e da desasceleração do consumo. Parte deste movimento incentiva a volta ao aprendizado de técnicas manuais de tecimento, como, por exemplo, o tricô, o crochê, a costura em máquinas domésticas, o tear e até a fiação. O presente trabalho tem como objetivo investigar e experimentar soluções ambientalmente sustentáveis para resíduos de malharia circular de algodão, utilizando técnicas manuais de tecimento, como o tricô e a matriz morfológica de Zwicky para desenvolver novos produtos de moda. Como matérias-primas principais foram utilizados resíduos de malha de três fontes: compra de novelos de produtores que trabalham diretamente com empresas que descartam as oréolas de malhas circulares; tecidos defeituosos descartados por empresas; peças descartadas por consumidores. A proposta para o desenvolvimento de novos produtos a partir de reuso de materiais, utilizou os seguintes métodos: o brainstorming, a matriz morfológica e o método de Pugh. Para a elaboração desse trabalho, foi feito um estudo bibliográfico da cadeira têxtil para compreender em quais momentos são gerados resíduos de malharia circular e como eles podem ser aproveitados para a elaboração do experimento deste estudo. Para direcionar ao ambientalmente sustentável, conceitos de sustentabilidade aplicados ao design e à moda, assim como conceitos de reciclagem, também foram estudados. A visão sobre técnicas manuais de tecimento e como estão inseridas no contexto atual de criatividade foi subsídio teórico para justificar a utilização do tricô para a experimentação e criação de peças de vestuário e acessórios. A geração de uma matriz morfológica de Fritz Zwicky foi a base metodológica para desenvolver novos produtos. O peso da matéria-prima resultou em produtos pesados para o uso em vestuário, mas aceitáveis para acessórios / Slow fashion opposes fast fashion as a search of reassuming the fashion productions means, valuing traditional handcrafts and slowing down consuming. This work aims to investigate and experiment environmentally sustainable solutions for circular knit waste, using handmade techniques like knitting and Zwickys morphological chart to develop new creative fashion garments. The works starts with a bibliographic study research on textile chain to understand in what circumstances the development of circular knit generates waste and how it can be used for this experiment. To base the study on environmentally sustainable solutions, a base study on fashion and design sustainability concept, as well as recycling, was also made. Handmade textiles, like knitting, and the creative view of handcrafts nowadays were also studied to justify it as a creative mean of experimentation for garments and accessories. Zwickys morphological chart generation was the methodological mean of developing new products. The use of circular knit waste to develop new products resulted in heavy garments, but it was well seen as a new yarn for handmade accessories
109

Metodologia de padronização de uma célula de fabricação e de montagem, integrando ferramentas de produção enxuta / Standardization methodology of production and assembly cell, combining lean manufacturing tools

Perin, Pedro Claudinei 25 August 2005 (has links)
Este trabalho propõe criar uma metodologia para a padronização de atividades de células de manufatura e de montagem. A metodologia compreende a seleção de algumas ferramentas de produção enxuta e de uma aplicação das mesmas. O desenvolvimento da metodologia ocorre em conjunto com a aplicação, caracterizando desta forma uma pesquisa-ação, uma vez que conceitos e ferramentas são revisados e adequados durante as aplicações. A metodologia é baseada no evento kaizen e sua aplicação tem duração de dois meses. O evento kaizen é utilizado na primeira semana e as demais semanas são dedicadas para acompanhamento das ações de melhorias. As duas últimas semanas são dedicadas à avaliação de resultados. Publicações na literatura científica relacionadas à padronização são poucas, por esta razão pode-se afirmar que este trabalho tem uma contribuição academicamente relevante com o tema e que empresas podem conhecer os requisitos básicos para aplicação da metodologia, podendo explorar seus benefícios. Um dos passos importante da metodologia é a definição das melhores práticas. A participação dos operadores na validação da distribuição das atividades para cada operador e na definição do ritmo de produção é um dos requisitos para o sucesso da implementação. Um processo padronizado permite distinguir uma situação normal de uma anormal. Desta forma ações corretivas podem ser definidas e implementadas. Esta metodologia apresenta um método simples para definição da capacidade instalada e de utilização de operador e máquina de uma célula de manufatura. A aplicação acontece em uma empresa de autopeça. Durante a aplicação, conceitos de manufatura enxuta são disseminados e as pessoas são instigadas a encontrar os desperdícios dentro do processo a ser padronizado. Esta metodologia é resultado de mais de quatorze aplicações e uma delas é utilizada neste trabalho para descrever a metodologia de padronização. / This research proposes to build a methodology for standardization activities of a manufacturing process. The methodology consists of a selection of tools from lean manufacturing systems and of application method. The development of this methodology occurred in parallel with his application, when conceptions and tools are revised and adapted. The standardization methodology is based on kaizen event and whole application takes two months. The kaizen event is used at the first week, when the bets practice are defined and implemented. The rest of the schedule is used for follow up and improvement action implementation. The two last week are dedicated for results analyzes. At science literature, publications about manufacturing activities standardization are not much available. Considered that, it might affirm this research has academic contributions for the theme and organization can find some basic requirement for standardization work application. One of the important phases of the methodology is to define the best practice. The labor participation is one of the requirements for implementation successes. Their participation at the validation of task operator distribution and cycle time definition, ensure the maintenance of standardized work. A standardize process enable distinguish one normal condition of abnormal one. Then corrective action can be defined and implemented. This methodology presents a simple method to define the real install capacity andthe labor and machine utilization of the manufacturing cells. The application occurs at assembly supplier company. During the application, lean manufacturing concepts are disseminated and the people are instigated to find the waste into the process. This methodology is result of more than fourteen applications and one of then is used in this dissertation to describe the methodology.
110

Carta de zoneamento para seleção de áreas frente a instalação de aterros sanitários no município de São Carlos-SP, escala 1:50.000 / Favorable areas for waste sanitary landfills: 1:50,000 scale zoning chart of São Carlos region, SP, Brazil

Muro, Marcos Domingues 22 September 2000 (has links)
Sempre houve uma preocupação com relação a disposição final do lixo, tanto nas grandes como nas pequenas cidades. Este trabalho consiste em analisar áreas para uma disposição adequada de aterros sanitários no Município de São Carlos. O Município de São Carlos, localizado no Estado de São Paulo, apresenta uma área de 1.151 km2 e conta com uma população de aproximadamente 180.000 habitantes. Está assentado sobre as Formações geológicas: Pirambóia, Botucatu, Serra Geral, Itaqueri, que são recobertas por materiais inconsolidados retrabalhados; o Botucatu constitui um grande manancial de águas de subsuperfície. Algumas áreas devem ser protegidas, visto que constituem zonas de recarga de aqüíferos. A metodologia Leite (1995) foi usada neste trabalho para a escolha dos atributos e análise dos resultados. Os principais atributos considerados foram: bacias hidrográficas, declividade, poços profundos, precipitação pluviométrica, substrato rochoso, mineralogia, espessura de materiais inconsolidados, landforms, distâncias do centro urbano, existência de outros aterros; esses atributos foram associados às informações geotécnicas analisadas em laboratório. Estas informações, permitiram avaliar as áreas mais favoráveis para a disposição de resíduos e a produção da Carta de Zoneamento em escala 1:50.000. / The final disposal of waste has always been a matter of trouble in big or small urban centers. This work presents the results acquired during the application of engineering geological mapping techniques in the evaluation of favorable areas for the development of waste sanitary landfills in São Carlos region. São Carlos region is located in the center State of São Paulo, Brazil, has an area of 1,151 km2 and a population 180,000. It\'s geology is characterized by the Pirambóia, Botucatu, Serra Geral and Itaqueri formations, which are covered by residual and reworked unconsolidated materiais; Botucatu represent large aquifer. The methodology from LEITE (1995) was used in this work, both for choosing the attributes or analyzing the results. The main considered attributes were the drainage basins, slope dips, rainfall, underlying rocks, thickness of unconsolidated materials, landforms, distance from the urban center and the occurrence of other landfills; these attributes were associated to laboratorial test informations. These informations, as a whole, led to an evaluation of the most favorable areas for waste disposal and the elaboration of a 1:50,000 scale zoning chart.

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