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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.
11

Global Family Networking for the Elderly : Evaluation and Redesign of ModernFamilies.net

Vanhauer, Marleen January 2009 (has links)
<p>This paper, the corresponding wireframe documentation including the functional prototype and flowchart document the evaluation and redesign of the beta version of the social networking platform ModernFamilies.net. In order to reveal possible usability flaws for people of different generations, in particular the elderly, a user-centered design approach including an expert review, diary studies and interviews were conducted. The findings reflected the need for consistency and feedback in general. For young children, the concept of the site appeared to behard to grasp. Experienced users found the access and management of relatives cumbersome. Most importantly, the elderly, novice computer users had a hard time getting started with the site on their own because they did not have access to a PC nor internet at their home. The latter and the fact, that some issues might never be solved by traditional usability testing because the user just feels overwhelmed by the vast amount of communication features he is faced with today calls for alternative, more intelligent, ambient interfaces. However, we came to the conclusion that although evaluation of such new technologies with elderly people is not alwayseasy, it is best to be conducted in the participants home or a similar environment.</p> / AGNES
12

Intern materialhantering på Fläkt Woods AB / Internal material handling at Fläkt Woods AB

Severinsson, Marcus, Karlsson, Andreas January 2012 (has links)
Intern materialhantering är ett ofta bortglömt område inom logistik, ett ämnesområde som annars i takt med den snabba och globala utvecklingen har fått ökad uppmärksamhet de senaste åren. I detta examensarbete studeras den interna materialhanteringen på Fläkt Woods ABs fabrik i Jönköping begränsat till flödet mellan godsmottagning och slutmontering. Syftet med fallstudien är att undersöka vilka problem som finns med den nuvarande interna materialhanteringen samt ge förbättringsförslag för hur den skulle kunna utvecklas för att minimera antalet produktionstopp orsakade av materialbrist. Studien har en abduktiv ansats där datainsamling genom dokumentation, observationer och intervjuer ligger till grund för en flödeskartläggning av tre produktgrupper som företaget bedömt vara mest intressanta att studera. Utifrån flödet identifieras möjliga problem och med hjälp av ett analytiskt ramverk klassificeras dessa för att urskilja de problem som leder till produktionsstopp. Studien visar att dessa handlar om att komponenter av någon anledning är felaktiga/skadade, lagras in/plockas på ett felaktigt sätt eller att det sker felaktigheter vid godsmottagning med avseende på registrering och sortering. Genomförda litteraturstudier ligger till grund för ett teoretiskt ramverk innehållande principer som bör tas i beaktning vid arbetet med intern materialhantering. Ramverket är en utgångspunkt för de förbättringsförslag som tas fram för att lösa de problem som bedöms orsaka produktionsstopp. Övergripande sett hamnar förbättrings­­förslagen inom tre skilda områden. Det första området berör problem orsakade av mänskliga faktorer vilka kan minimeras genom ökad motivation, produktkunskap och helhets­förståelse. Område nummer två täcker fysisk förflyttning av material samt registrering av detta i affärssystemet vilket bör ske på ett standardiserat och mer säkert sätt. Det tredje området innefattar ett behov av utökad mätning och uppföljning av de problem som uppstår i flödet för att få ökad kontroll över vad som sker. Studenterna rekommenderar företaget att, förutom att implementera föreslagna förbättringar, också studera det teoretiska ramverket för att kunna tillämpa detta på ytterligare problem som studien har identifierat men som ligger utanför studiens omfång. / Internal material handling is an area within logistics that receive little attention. Logistics on the other hand has received increased attention in recent years due to the fast and global growth of markets. The aim for this report is to study the internal material handling at Fläkt Woods AB’s factory in Jönköping, Sweden. The study is limited to include activities from receiving goods until the start of final assembly. The purpose with this case study is to identify potential problem within the current setup of the internal material handling system and provide suggestions for improvements in order to minimize downtime in production caused by lack of material. Based on an abductive approach, the data collection performed via documents, observations and interviews lays the foundation for the compilation of a number of flowcharts. These flowcharts describe the flow for three separate product groups which the company previously has identified as most interesting to map. With the flowcharts as a starting point potential problems are identified and, with the use of an own-composed analytical framework, also classified in order to sort out problems that are likely to cause downtime in production. The study states that these problems originate from damaged/defective components, incorrect storing/picking or occur due to errors when recording and sorting newly arrived goods. Literature studies are the basis for a theoretical framework containing a number of principles that should be taken into consideration when handling material internally. This framework is the base on which the presented suggestions for improvements rely. The suggestions can be divided into three separate areas. Problems caused by human factors can be minimized by increased motivation, increased knowledge and a more comprehensive view within the workforce. All kinds of physical movement along with registration in the ERP-system should be conducted in a more standardized and secure way. A need of increased measuring and monitoring has also become evident in order to increase control over different types of undesirable events. Beside implementing the proposed suggestions for improvement the students also advice the company to study the theoretical framework in order to be able to apply it on other problems. This study identifies quite a few other problems, but due to the scope of the study they are not further analyzed.
13

Identificação de métodos para descoberta de novos princípios ativos com atividade antienvelhecimento / Identification methods for the discovery of new active ingredients with anti-aging activity

Ribeiro, Simone de Almeida January 2013 (has links)
Made available in DSpace on 2016-06-23T12:15:52Z (GMT). No. of bitstreams: 2 11.pdf: 1171017 bytes, checksum: fd87d6f92747562e0cca8362bb88c606 (MD5) license.txt: 1748 bytes, checksum: 8a4605be74aa9ea9d79846c1fba20a33 (MD5) Previous issue date: 2013 / Made available in DSpace on 2016-07-05T22:38:00Z (GMT). No. of bitstreams: 3 11.pdf.txt: 125000 bytes, checksum: 5a305744c1238f1b48f95a04d4ce0cd8 (MD5) license.txt: 1748 bytes, checksum: 8a4605be74aa9ea9d79846c1fba20a33 (MD5) 11.pdf: 1171017 bytes, checksum: fd87d6f92747562e0cca8362bb88c606 (MD5) Previous issue date: 2013 / Fundação Oswaldo Cruz. Instituto de Tecnologia em Fármacos/Farmanguinhos. Rio de Janeiro, RJ, Brasil. / Atualmente um ser humano vive mais tempo do que há 100 anos, porém sob forte estresse e em um meio ambiente altamente poluído. Essa nova realidade fez aumentar a incidência de doenças como câncer e doenças crônico-degenerativas. Em contrapartida as indústrias farmacêuticas e cosméticas buscaram alternativas para o tratamento dessas novas doenças e para melhora do bem-estar e aparência da população, respectivamente. No entanto, especialistas da área dermatológica chamam a atenção para o uso indiscriminado dos produtos cosméticos, principalmente devido ao marketing exagerado visando à venda destes produtos. Sendo assim, é importante que tanto a eficácia, assim como a segurança desses produtos seja avaliada. Devido a razões científicas e éticas, determinar esses testes in vitro se tornou um objetivo essencial e fundamental em todo o mundo. O presente trabalho tem como objetivo avaliar os métodos descritos na literatura para descoberta de princípios ativos com atividade antienvelhecimento visando o desenvolvimento de cosmecêuticos, levando-se em consideração a avaliação de segurança e eficácia das substâncias testadas. Métodos in vitro foram selecionados em revistas indexadas, patentes e legislação nacional vigente. Por ser uma classe recente, a legislação que regulamenta o registro de cosmecêuticos com atividade antienvelhecimento não existe. Observamos ainda, uma grande quantidade de métodos onde é possível avaliar a eficácia de substâncias quanto sua atividade hidratante, antirrugas, despigmentante, fotoprotetora, anti-inflamatória e antiflacidez. Com isso, podemos concluir que mesmo com a escassez de legislação para regulamentar cosmecêuticos, existem técnicas descritas na literatura, validadas ou não, que estão de acordo com os princípios dos três Rs de Russel e Burch, e são úteis para avaliar a atividade antienvelhecimento de princípios ativos. / Nowadays the humans live longer than 100 years ago, but under severe stress and in a highly polluted environment. This new reality has increased the incidence of diseases such as cancer and chronic degenerative diseases. In contrast to pharmaceutical and cosmetic industries sought alternatives to treat these new diseases and improved well-being and appearance of the population, respectively. However, specialists in dermatology draw attention to the widespread use of cosmetic products, mainly due to marketing hype aimed at selling these products. Therefore, it is important that both the effectiveness and safety of these products are evaluated. Due to scientific and ethical reasons, these tests determine in vitro has become an essential objective and fundamental worldwide. This study aims to evaluate the methods described in the literature for discovery of active ingredients with anti-aging activity aimed at developing cosmeceuticals, taking into account the evaluation of safety and efficacy of the tested substances. In vitro methods were selected in refereed journals, patents and current national legislation. Because it is a recent class, the legislation governing the registration of cosmeceuticals in antiaging activity does not exist. We also observed a large quantity of methods in which you can evaluate the effectiveness of substances as their activity moisturizer, wrinkle, depigmentation, sunscreen, anti-inflammatory and anti-sagging. With this, we can conclude that even with the lack of legislation to regulate cosmeceuticals, are described in the literature, validated or not, that is in accordance with the principles of the “three Rs” of Russell and Burch, and is useful to evaluate the activity anti-aging active ingredients.
14

Řízení kvality ve vybrané firmě / Quality management in company

FROULA, Stanislav January 2018 (has links)
The thesis deals with the analysis of quality management system in a selected organization and with tasks assigned by the organization's quality manager. The company is Aspera, spol. s r.o., specifically its metal manufacturing centre Aspera Technology in České Budějovice. The thesis is divided into a theoretical and a practical part. The theoretical part is based on study of scientific literature and focuses on quality definition, history of quality management, quality management system principles and concepts and quality management tools, especially process flowchart, Pareto diagram and FMEA. The practical part describes the company, its manufacturing centre and its quality management system. The next part deals with the three assigned tasks. First, designated company processes are described and visualized in the form of flowcharts. Second, weak points and risks of these processes are analysed using FMEA and corrective actions are recommended. Third, the most significant internal defects are identified using Pareto chart and cost analysis. At the end of the thesis some suggestions for improvement are provided. The suggestions were observed during an internship in the company and should enhance the quality management system and help the overall operation of the company processes.
15

Generátor biologických průběhů / Biological Signal Generator

Kadeřábek, Jan January 2010 (has links)
This semestral thesis describes signal EKG, it’s origin, evaluation and device for his generation. After identification with standard course of EKG signal, was such as signal created in program language Matlab. It’s consisting of 10 sinus courses, where each of them has it’s own frequence, start phase and amplitude. Each of this part of EKG signal is beat frequence variant. Rates of it’s durations and sizes were fixed from medicin literature. Such as created program were rewritten to program language C and is basic of main program, which control signal processor. Finally was propoused preparation, which will be generated this signal. Outcome of this thesis is teoretic treatise about signal EKG, created program for generation of this course include part control and machine doing realization of biological courses.
16

Processamento mínimo de laranja \'Pera\': tipo de corte, sanitização, centrifugação e atmosfera modificada / Minimal processing of Pera orange: cut type, sanitation, centrifugation and modified atmosphere

Iuamoto, Marcia Yuriko 24 April 2009 (has links)
O processo de urbanização e modernização da sociedade exige mudanças nos hábitos alimentares. A demanda por produtos de maior valor agregado e com alta qualidade é crescente. Neste cenário, o mercado de frutas minimamente processadas tem grande potencial de crescimento. O processamento mínimo de laranjas se justifica devido à dificuldade do descascamento e ao odor deixado nas mãos neste procedimento. Estudos de descascamento de laranja Pêra (Citrus sinensis L. Osbeck) pelo uso de tratamento hidrotérmico já foram realizados na ESALQ e mostraram grande potencial do uso desta técnica no processamento mínimo desta fruta. O objetivo deste trabalho foi determinar um fluxograma para o processamento mínimo da laranja Pêra e a influência da atmosfera modificada passiva na qualidade do produto, visando obter um produto conveniente com alta qualidade microbiológica e sensorial. Primeiramente foi determinado o melhor tipo de corte. Os frutos foram processados, armazenados a 5ºC por 12 dias, e avaliados quanto ao extravasamento de suco, qualidade físico-química e aparência a cada três dias. O corte em tiras foi o que apresentou melhor aceitação na análise de aparência. Após a determinação do tipo de corte, foi estudada a influência da sanitização e da centrifugação na qualidade do produto. A sanitização mostrou-se necessária para obter um produto com alta qualidade microbiológica. A centrifugação por 5 a 10 segundos foi eficiente para reduzir a quantidade de água no fundo das bandejas, sem prejudicar a aparência do produto final. Na última etapa foram estudadas tecnologias de embalagem e a influência da temperatura na qualidade físico-química, microbiológica, sensorial e nas concentrações de acetaldeído e de etanol da laranja Pêra minimamente processada. A tecnologia de embalagem apresentou pouca influência sob a qualidade da laranja minimamente processada. A laranja Pêra é viável para o processamento mínimo, desde que seja mantida a cadeia de frio. / The process of urbanization and modernization of society requires changes in food habits. Demand for products of higher added value and high quality is increasing. In this scene, the market for fresh cut fruit has great growth potential. The minimal processing of oranges is justified on the difficulty of peeling and the smell left in the hands in this procedure. Studies of orange Pêra (Citrus sinensis L. Osbeck) peeling by using hydrothermal treatment were made in ESALQ and showed great potential use of this technique in minimal processing of fruit. The objective was to determine a flowchart for the minimal processing of Pêra orange and the influence of passive modified atmosphere in the product quality in order to obtain a product with high sensory and microbiological quality. Firstly the best type of cutting was determined. The fruits were processed, stored at 5º C for 12 days and assessed for leakage of juice, physical-chemical quality and appearance every three days. The cut in strips was the best acceptance in the analysis of appearance. After determining the type of cut, the influence of sanitation and centrifugation in quality of the product was studied. The sanitation was shown to be necessary to obtain a product with high microbiological quality. Centrifugation for 5 to 10 seconds was effective in reducing the amount of water in the bottom of the trays, without harming the appearance of the final product. Finally packaging technologies were studied and the influence of temperature on the physical-chemical quality, microbiological, sensory and concentrations of acetaldehyde and ethanol in fresh cut Pêra orange. The technology of packaging had little influence on the quality of minimally processed orange. The Pêra orange is usable for the minimal processing, provided it is maintained the cold chain.
17

Desenvolvimento de uma metodologia de interpretação de análise de gases dissolvidos em óleo para transformadores de potência usando lógica Fuzzy / Development of a methodology of analysis and interpretation of oil dissolved gas in power transformers using Fuzzy logic and its implementation in graphic software

Silva, Tiago Henrique Vivas e 25 May 2017 (has links)
Submitted by JÚLIO HEBER SILVA (julioheber@yahoo.com.br) on 2017-07-21T17:52:36Z No. of bitstreams: 2 Dissertação - Tiago Henrique Vivas e Silva - 2017.pdf: 5148275 bytes, checksum: 451ab8d12dacefd5609d711aa1677179 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2017-07-24T11:16:07Z (GMT) No. of bitstreams: 2 Dissertação - Tiago Henrique Vivas e Silva - 2017.pdf: 5148275 bytes, checksum: 451ab8d12dacefd5609d711aa1677179 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Made available in DSpace on 2017-07-24T11:16:08Z (GMT). No. of bitstreams: 2 Dissertação - Tiago Henrique Vivas e Silva - 2017.pdf: 5148275 bytes, checksum: 451ab8d12dacefd5609d711aa1677179 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2017-05-25 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES / This work have its main theme on the maintenance in Power Transformers in energy substations. Power Transformers have great importance in power transmission and distribution systems. In addition to being essential to perform the transformation between diferent levels of electrical voltage from generation to consumption, the cost of these equipments represents a considerable part of the investment in the system. A failure in a transformer can compromise the supply of electricity to an entire region of the city, which represents a lack of billing and fines to the power distribution company, as well as the repair costs of the equipment that failed. In this dissertation one of the main techniques used to diagnose power transformers using the Dissolved Gas Analysis (DGA) are discussed, as well as the use of Fuzzy Logic in conjunction with the diferente analysis techniques. The differential of this work is the development of a computational tool that allows the grafical visualization of diagnosis evolution for each equipment over time and provides a final result by a flowchart that considers all diagnosis of the traditional techniques approached with application of Fuzzy Logic. The result obtained is the development of a software that implements the proposed methodology and graphically presents the diagnostics of each equipment present in the company’s database. The software allows the analysis of the current operational state of the equipment and his evolution over time, subsidizing the decision of the maintenance professional regarding maintenance in the equipment. / Este trabalho tem como tema central o planejamento da manutenção em transformadores de potência em subestações. Os transformadores de potência têm uma grande importância nos sistemas de transmissão e distribuição de energia elétrica. Além de serem essenciais para efetuar a transformação entre os diferentes níveis de tensão elétrica ao longo do sistema desde a geração até o consumo, o valor destes equipamentos representa uma parcela considerável do investimento das concessionárias no sistema. Uma falha em um transformador de potência pode comprometer o fornecimento de energia elétrica para uma região inteira da cidade, o que representa falta de faturamento e multas para a concessionária, além dos próprios custos de reparação do equipamento que falhou. Nesta dissertação é abordada uma das principais técnicas utilizadas para diagnósticos de transformadores de potência: a Análise de Gases Dissolvidos (AGD), bem como a utilização da lógica Fuzzy em conjunto com os diferentes métodos de análise desta técnica. O diferencial deste trabalho está no desenvolvimento de uma ferramenta computacional que permite a visualização gráfica da evolução do diagnóstico de cada equipamento ao longo do tempo e fornece um resultado final através de um fluxograma que considera os diagnósticos de todas as técnicas tradicionais abordadas com a aplicação da lógica Fuzzy. O resultado obtido é o desenvolvimento de um software que implementa a metodologia proposta e apresenta, de forma gráfica, os diagnósticos de cada equipamento presente no banco de dados da empresa. O software permite a análise do atual estado operacional do equipamento e a evolução deste diagnóstico ao longo do tempo, subsidiando a tomada de decisão do profissional da manutenção quanto às manutenções no equipamento.
18

Värdeflödesanalys : ett första steg mot lean produktutveckling / Value Steam Mapping : a first step towards lean product development

Brattlöw, Johan, Forsberg, Adam January 2005 (has links)
<p>Detta examensarbete har utförts vid Ekonomiska institutionen på Linköpings tekniska högskola. Uppdragsgivare har varit Kongsberg Automotive AB och Saab Training Systems AB. Syftet med detta arbete har varit att undersöka om värdeflödesanalys inom produktutveckling kan hjälpa företag att effektivisera utvecklingen av produkter. Metoden för värdeflödesanalys som vi valt att prova har tagits fram av MIT. Arbetets syfte var att pröva denna metod, detta gjordes genom att utföra två studier. Modellen föreskriver att en kartläggning görs i tre steg: först genom ett ganttschema, därefter flödesschema och till sist en DSM. Datainsamlingen är gjord med hjälp av intervjuer och en enkät, enligt Millards rekommendation. Med hjälp av metoden och stöd av litteratur kartlades och analyserades flödet. Bland annat framkom följande åtgärdsförslag: Tydligare ansvarsområden och klara rutiner Utför FEM-beräkning mer parallellt med konstruktionsarbetet Tydligarepull event för att klargöra varje aktivitets syfte. Vi kan konstatera att resultaten av värdeflödesanalysen har tagits väl emot av företagen, både när det gäller kartläggning och åtgärdsförslag. Detta leder oss fram till vår slutsats att modellen har varit till hjälp för företagen och därmed får anses fungera.</p>
19

Värdeflödesanalys : ett första steg mot lean produktutveckling / Value Steam Mapping : a first step towards lean product development

Brattlöw, Johan, Forsberg, Adam January 2005 (has links)
Detta examensarbete har utförts vid Ekonomiska institutionen på Linköpings tekniska högskola. Uppdragsgivare har varit Kongsberg Automotive AB och Saab Training Systems AB. Syftet med detta arbete har varit att undersöka om värdeflödesanalys inom produktutveckling kan hjälpa företag att effektivisera utvecklingen av produkter. Metoden för värdeflödesanalys som vi valt att prova har tagits fram av MIT. Arbetets syfte var att pröva denna metod, detta gjordes genom att utföra två studier. Modellen föreskriver att en kartläggning görs i tre steg: först genom ett ganttschema, därefter flödesschema och till sist en DSM. Datainsamlingen är gjord med hjälp av intervjuer och en enkät, enligt Millards rekommendation. Med hjälp av metoden och stöd av litteratur kartlades och analyserades flödet. Bland annat framkom följande åtgärdsförslag: Tydligare ansvarsområden och klara rutiner Utför FEM-beräkning mer parallellt med konstruktionsarbetet Tydligarepull event för att klargöra varje aktivitets syfte. Vi kan konstatera att resultaten av värdeflödesanalysen har tagits väl emot av företagen, både när det gäller kartläggning och åtgärdsförslag. Detta leder oss fram till vår slutsats att modellen har varit till hjälp för företagen och därmed får anses fungera.
20

Mapeamento e gestão de processos aplicados na pró-reitoria de infraestrutura da universidade federal de Santa Maria / Mapping and management processes used in infrastructure dean of federal university of Santa Maria

Schlosser, Andreia Lucila da Costa 29 April 2014 (has links)
In the current scenario, competitiveness is increasing, the globalization and technological innovations have brought many changes for organizations, requiring hem to evaluate for world production of assets and services standards. Educational institutions do not differ from this context due to the fact that they are engaged in adopting new practices to improve their services. In this context, observing the dayby- day organizational reality of the secretary of maintenance s coordination of a Public Institution of Higher Education, it has been found that too much information are lost when transferring the information from a group (handoffs) to another by the fact that it has not being recorded, provoking difficulties when executing many activities. This way, the present study has tried to analyze the way the processes occur in the secretary of maintenance s coordination of Pro-Rectory of Infrastructure and the way they can be simplified and/or improved, aiming the standardization and higher organizational efficiency. This study has pointed out the necessity of standardization, apart from automation in the process, aiming the improvement in services provided by this organizational department. In this sense, as the main result of this study is a Handbook of processes and routine for the secretary of maintenance s coordination of Pro-Rectory of Infrastructure of Federal University of Santa Maria/RS. / No atual cenário a competitividade se mostra cada vez mais crescente, a globalização e as inovações tecnológicas trouxeram diversas mudanças para as organizações. Exigindo, principalmente, que as mesmas evoluam para os padrões mundiais de produção de bens e serviços. As instituições de ensino não fogem a esse contexto, pois estão engajadas na adoção de novas práticas de melhoria contínua de seus serviços. Dentro deste contexto, observando a realidade do dia-adia organizacional da secretaria da coordenadoria de manutenção de uma Instituição Pública de Ensino Superior, verificou-se que muitas informações se perdem quando da transferência de uma transação de um grupo (handoffs) para outro por não se apresentarem devidamente registradas, o que acarreta dificuldades na execução das atividades. Assim, buscou-se analisar no presente estudo, a forma em que ocorrem os processos na secretaria da coordenadoria de manutenção da Pró- Reitoria de Infraestrutura, e como podem ser simplificados e/ou melhorados, visando a garantir: a padronização e o aumento da sua eficiência organizacional. O estudo apontou claramente para a necessidade de padronização, além de alguma automatização dos processos, tendo em vista a melhoria da qualidade dos serviços prestados por esta unidade organizacional. Neste sentido, apresenta-se como resultado principal deste trabalho o Manual de processos e rotinas para a secretaria da coordenadoria de manutenção da Pró-Reitoria de Infraestrutura da Universidade Federal de Santa Maria/RS.

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