Orientador: Eurípedes Guilherme de Oliveira Nóbrega / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica / Made available in DSpace on 2018-08-18T19:29:48Z (GMT). No. of bitstreams: 1 Manzano_RonaldoSergioNovaes_M.pdf: 3919621 bytes, checksum: 3ecae7cafc0760b1cbe75718579f45ef (MD5) Previous issue date: 2011 / Resumo: O objetivo deste trabalho é criar uma metodologia que monitore e detecte em tempo real as falhas, seja de processo seja de instrumentos, em uma coluna de destilação. Para tanto, foi utilizado um sistema de inferência nebulosa com um sistema de análise de confiabilidade de instrumentos a partir dos diagnósticos disponibilizados na rede industrial Fieldbus Foundation®. O resultado é uma simples, prática e ao mesmo tempo poderosa ferramenta que permite aos operadores analisarem e identificarem falhas e todas as suas causas prováveis, permitindo-lhes assim tomar ações preventivas e/ou corretivas mais rapidamente e com maior assertividade. Essa metodologia foi desenvolvida em VBA Excel® com interface amigável e gráfica. Para cada falha detectada é detalhada sua causa raiz (pode ser mais de uma), ação a ser tomada e é dada uma indicação percentual de intensidade de falha, facilitando a priorização das ações de manutenção / Abstract: The objective is to create a methodology for to monitor and to detect faults in real time, as for process as for instruments in a distillation column. For this, we used a fuzzy inference system with another instruments reliability analysis system from the diagnostics available in the Fieldbus Foundation® industrial network. The result is a simple, practical and yet powerful tool that allows the operators to analyze and to identify faults and their possible causes, thus allowing them to take preventive and / or corrective actions more quickly and with greater assertiveness. This methodology was developed in Excel® VBA with friendly interface and graphics. For each fault detected is detailed their root-cause (may be more than one is possible), the actions to take and so, it's given a percentage indication of failure intensity, facilitating the prioritization for maintenance's actions / Mestrado / Mecanica dos Sólidos e Projeto Mecanico / Mestre em Engenharia Mecânica

International Telemetering Conference Proceedings / October 25-28, 1993 / Riviera Hotel and Convention Center, Las Vegas, Nevada / As technology progresses we are faced with ever increasing volumes and rates of raw and processed telemetry data along with digitized high resolution video and the less demanding areas of video conferencing, voice communications and general LAN-based data communications. The distribution of all this data has traditionally been accomplished by solutions designed to each particular data type. With the advent of Asynchronous Transfer Modes or ATM, a single technology now exists for providing an integrated solution to distributing these diverse data types. This allows an integrated set of switches, transmission equipment and fiber optics to provide multi-session connection speeds of 622 Megabits per second. ATM allows for the integration of many of the most widely used and emerging low, medium and high speed communications standards. These include SONET, FDDI, Broadband ISDN, Cell Relay, DS-3, Token Ring and Ethernet LANs. However, ATM is also very well suited to handle unique data formats and speeds, as is often the case with telemetry data. Additionally, ATM is the only data communications technology in recent times to be embraced by both the computer and telecommunications industries. Thus, ATM is a single solution for connectivity within a test center, across a test range, or between ranges. ATM can be implemented in an evolutionary manner as the needs develop. This means the rate of capital investment can be gradual and older technologies can be replaced slowly as they become the communications bottlenecks. However, success of this evolution requires some planning now. This paper provides an overview of ATM, its application to test ranges and telemetry distribution. A road map is laid out which can guide the evolutionary changeover from today's technologies to a full ATM communications infrastructure. Special applications such as the support of high performance multimedia workstations are presented.

Le partenariat dans le domaine de la santé et des services sociaux s’impose pour répondre aux besoins de plus en plus complexes des populations vulnérables et il est important de l’évaluer pour soutenir les partenaires dans l’amélioration de leurs pratiques. Ce mémoire présente les résultats d’une étude qualitative visant à évaluer la qualité du partenariat du Rond-Point, un centre de services intégrés pour femmes enceintes et parents toxicomanes et leurs jeunes enfants âgés de 0 à 5 ans. Nous avons rencontré 19 professionnels (intervenants et gestionnaires) en entrevues semi-structurées pour comprendre en profondeur leur expérience. Les réponses des participants ont fait l’objet d’une analyse de contenu. Les conditions facilitant ou entravant la mise en œuvre du projet se rapportent aux quatre dimensions suivantes : (1) la mobilisation des partenaires ; (2) la nature du projet et son fonctionnement (éléments de gouvernance) ; (3) le travail conjoint des partenaires auprès des familles ; et (4) les enjeux socio-politiques. L’étude met en évidence des éléments déterminants dans le développement puis la réussite d’un projet en partenariat. Plusieurs facteurs rendent difficile le travail des personnes rencontrées et nous explorons plus précisément l’importance de bien planifier la mise en œuvre et les défis liés à la communication et au leadership partagé. / Partnerships are needed in the field of health and social services to meet the complex needs of vulnerable populations. It is important to evaluate these partnerships to support partners in improving their practice. This qualitative study assessed the quality of the partnership of the Rond-Point, an integrated service center for pregnant women and parents with substance use disorder symptoms and their young children aged 0-5 years. We conducted semi-structured in-depth interviews with 19 respondents (practitioners and managers) to explore their perceptions regarding their inter-agency collaboration. Participants’ responses were examined using descriptive content analysis. Conditions facilitating or hindering implementation of the partnership included the following dimensions: (1) partners’ participation and engagement; (2) organisational functioning; (3) cooperation between organisations; and (4) socio-political issues. This study highlights critical elements to consider for the success of this partnership. Participants reported a number of barriers to effective collaboration; in particular, we discuss the importance of engaging in serious preplanning, and the challenges with communication and shared leadership.

Since the emergence of the Asynchronous Transfer Mode ( A TM ) concept, various switching architectures have been proposed. The multistage interconnection networks have been proposed for the switching architecture under the A TM environment. In this thesis, we propose a new model for the performance analysis of an A TM switching fabric based on single-buffered Banyan network. In this model, we use a three-state, i.e., "empty", "new" and "blocked" Markov chain model to describe the behavior of the buffer within a switching element. In addition to traditional statistical analysis including throughput and delay, we also examine the delay variation. Performance results show that the proposed model is more accurate in describing the switch behavior under uniform traffic environment in comparison with the "two-state" Markov chain model developed by Jenq, et. al.[4] [6] . Based on the "three-state" model, we study a packet priority scheme which gives the blocked packet higher priority to be routed forward during contention. It is found that the standard deviation of the network delay is reduced by about 30%.

Στην παρούσα διπλωματική εργασία μελετάται έλεγχος της λειτουργίας ενός πλήθους διαφορετικών τεχνολογιών δικτύου, όπως το Ψηφιακό Δίκτυο Ενοποιημένων Υπηρεσιών (Integrated Services Digital Network, ISDN), ο ψηφιακός βρόχος συνδρομητή (Digital Subscriber Loop), οι τεχνολογίες SHDSL,VDSL κ.α. Αφότου έγινε μια εκτενής περιγραφή των περισσότερων τύπων δικτύων και διεξοδική μελέτη των λειτουργιών τους, προσδιορίστηκαν οι τεχνολογίες δικτύου που είναι εφικτό να μελετηθούν στα πλαίσια ενός εργαστηριακού μαθήματος. Για την επίτευξη του στόχου αυτού δη-μιουργήθηκαν μια σειρά εργαστηριακών ασκήσεων που βοηθούν στην κατανόηση τόσο των συγκεκριμένων τεχνολογιών (και των μεταξύ τους διαφορών) όσο και των πολυάριθμων ελέγχων που είναι δυνατό να διεξαχθούν για την παρακολούθηση και συντήρηση των συγκεκριμένων δικτύων. Εν κατακλείδι η εργασία αποτελεί ένα χρήσιμο εργαλείο για τη μελέτη των πιο σημαντικών τεχνολογιών δικτύου. / This diploma thesis examines the monitoring of the functions, of many network technologies such as the Integrated Services Digital Network (ISDN), the Digital Subscriber Loop (DSL), the SHDSL, VDSL technologies and more. After an extensive reference of the most network types and a comprehensive study of their functions, it has been determined which of those is possible to be examined as a part of lab course. In order for this goal to be achieved, it has been created a set of laboratory exercises that help in the understanding of these network technologies, the differences between them and the multiple tests that can be conducted for the monitoring and maintenance of those networks. In conclusion this diploma thesis is useful tool in the study of the most important network technologies.

Orientador: Ivanil Sebastião Bonatti / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Eletrica e de Eletrica / Made available in DSpace on 2018-08-05T15:37:17Z (GMT). No. of bitstreams: 1 Marques_MarcelodeOliveira_M.pdf: 450626 bytes, checksum: fa1f72472e4929bcf614ccd0a37ab18b (MD5) Previous issue date: 2005 / Resumo: O dimensionamento de enlace sem fio das redes de telecomunicação com integração de voz e de dados é abordado nesse trabalho. Foram desenvolvidos procedimentos de análise e síntese para os dois modelos de filas considerados: modelos markovianos; e modelos com prioridade, sem e com preempção. Esquemas com ou sem compartilhamento de recursos e com buffer finito e infinito foram considerados. Comparações numéricas foram feitas para os modelos utilizados, bem como, os resultados obtidos no dimensionamento do enlace foram submetidos a condições de sobrecarga do tráfego de voz e de dados de forma a analisar o comportamento dos parâmetros de qualidade de serviço especificados / Abstract: The dimensioning of telecommunications network wireless link, with voice and data integration, is presented in this paper. Analysis and synthesis procedures were developed considering Markovian and priority models (with or without preemption). Schemes with or without resources sharing and finite and infinite buffer were considered. The selected models were numerically compared and the results of the dimensioning were submitted to simulations of traffic overload conditions in order to analyze the quality of service parameters behavior / Mestrado / Telecomunicações e Telemática / Mestre em Engenharia Elétrica

Introduction: The field of implementation science provides the variables adoption and reach, which can be used to evaluate aspects to access, a primary incitement for integrated care. This study compared two integrated models: In Year 1, behavioral health consultants worked collaboratively with pediatricians to provide brief on-the-spot consultations to patients with behavioral concerns, and in Year 2, a structured, evidence-based treatment (EBT), the Family Check-Up, was developed to be delivered in conjunction with the existing collaborative model. Method: A chart review revealed the number of children who (a) attended a 4- to 5-year-old well-visit, (B) were screened, (c) were identified as having behavior problems, (d) were referred, and (e) accessed the services. Outcomes were calculated as percentages of children with behavioral concerns who were referred to (adoption) and received (reach) the services in each year. Results: Key findings were that (a) physician referrals increased when an EBT was added, but (b) patients had better first-session contact with the brief approach than the EBT, which few patients completed. Discussion: Results underscore the utility of measuring adoption and reach as partial indicators of access to services. These are accessible variables, collected in every practice that can be measured routinely in the context of quality improvement and, ideally, reported in studies as a way to disseminate knowledge about how to build behavioral health technology into primary care. Future research should strive for more rigor in measuring adoption and reach, and consider including a number of other implementation outcomes.

This diploma thesis deals with computer networks which play a key role in present society. More and more demands are placed on these networks (especially on quality of services and throughput) because of fast-growing developement of services such as voice and video real-time transmissions. All the packets in typical Ethernet networks are equal. Therefore it is sometimes impossible for the application to maintain required throughput speed of a network. For this case it is useful to take some mechanisms into the consideration. These mechanisms (sometimes called QoS) are able to distinguish different types of transmissions and traffic, analyze them and then prioritize them according to some pre-defined set of rules. The most famous mechanisms are Integrated Services and Differentiated Services. The implementation of Differentiated Services is the goal of this thesis.

Orientador: Michel Daoud Yacoub / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Elétrica e de Computação / Made available in DSpace on 2018-08-27T09:49:57Z (GMT). No. of bitstreams: 1 Silveira_LorenoMenezesda_M.pdf: 2626161 bytes, checksum: b80454b10dc90baf554cb0f37c6ba67e (MD5) Previous issue date: 2015 / Resumo: Esta dissertação apresenta uma visão da evolução das redes de telecomunicações objetivando o atendimento dos parâmetros da Qualidade de Serviço de redes IP aos requisitos de qualidade de voz das redes telefônicas de circuitos comutados. Gera também uma série de resultados úteis para planejar a introdução de novas tecnologias e de Redes de Nova Geração (NGN) para serviços de voz. Entre os resultados, introduz uma metodologia de planejamento de rede com base na experiência do autor na área. A aplicação desta metodologia é descrita em um caso de estudo sobre a introdução do serviço de voz através de uma rede IP existente. Analisa parâmetros de qualidade de serviço, requisitos de qualidade de voz e, finalmente, calcula a taxa de transferência de fluxo de dados adicional devido ao tráfego de voz. Os cálculos são baseados em um modelo de dimensionamento implementado em uma planilha do Excel. Apesar de não mostrado neste trabalho, os resultados provaram sua efetividade e consistência com a implantação de uma prestadora específica e com o comportamento subsequente da rede em cidades relevantes, como São Paulo, Rio de Janeiro e Belo Horizontes. A dissertação também apresenta modelos de dimensionamento para o tráfego de sinalização: Sistema de Sinalização Nº 7 (ISUP - Rede Digital de Serviços Integrados e BICC - Portador de Controle de chamada Independent) para uso em redes TDM (Time Division Multiplex), ATM (Asynchronous Transfer Mode) ou NGN, explorando estes modelos de aplicação para o protocolo H.248 com possível extensão a SIP, ambos usados no contexto NGN / Abstract: This dissertation provides an overview of telecommunication networks evolution in the light of compliance of IP networks Quality of Service¿s parameters with Public Switched Telephone Networks (PSTN) voice quality requirements. It also delivers a number of new results useful for planning and designing the introduction of new technologies as well as Next Generation Networks (NGN), to provide voice services. Among the results, it introduces a network planning methodology based on the author's experience in this area. The application of such methodology is depicted in a study case concerning the introduction of the voice service over an existing IP network. It analyzes Quality of Service parameters, voice quality requirements and, finally, it calculates the additional data flow throughput due to the voice traffic. The calculations are based on a dimensioning model implemented in an excel spreadsheet. Although not being shown here, the results have been proved effective and consistent with a specific carrier deployment and subsequent network behavior in relevant cities like São, Paulo, Rio de Janeiro and Belo Horizonte. This work also presents a dimensioning model for signaling traffic: Signalling System Nº 7 (ISUP ¿ Integrated Services Digital Networks and BICC - Bearer Independent Call Control) for use in TDM (Time Division Multiplex), ATM (Asynchronous Transfer Mode) or NGN networks. Furthermore, it exploits the application of the dimensioning model to H.248 protocol, suggesting how to extend it to SIP, both used in the NGN context / Mestrado / Telecomunicações e Telemática / Mestre em Engenharia Elétrica

The growth of Asynchronous Transfer Mode (ATM) was considered to be the ideal carrier of the high bandwidth applications like video on demand and multimedia e-learning. ATM emerged commercially in the beginning of the 1990's. It was designed to provide a different quality of service at a speed up 100 Gbps for both real time and non real time application. The turn of the 90's saw a variety of technologies being developed. This project analyzes these technologies, compares them to the Asynchronous Transfer Mode and assesses the future of ATM.