Dissertations / Theses: 'Notes de service'

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Tripp, Tonya R. "Understanding the Use of Video Analysis Tools to Facilitate Reflection among Preservice Teachers." BYU ScholarsArchive, 2009. https://scholarsarchive.byu.edu/etd/2030.

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Research states that reflection is the foundation for improved teaching (Dewey, 1933). As a result, educators have used many methods to facilitate teacher reflections. Some of these methods include keeping reflective journals, conducting peer teaching sessions, providing written feedback, giving lesson critiques, conducting action research projects, and using reflective conferences (Cook, Young & Evenson, 2001). As video has become more accessible, educators have also become interested in using video analysis tools to facilitate teacher reflections. However, very little has been published on how the use of video analysis tools influences teacher reflections. If reflection is the foundation for improved teaching, it is important for educators and researchers to understand how the use of these tools impacts teacher reflections. Therefore, the focus of this study was to understand the experience of a supervisor and student teacher as they used a video analysis tool to reflect on teaching. The researcher included thick descriptions of participants' experiences, so researchers and educators interested in using video analysis tools to facilitate reflection will be able to transfer the findings to their individual circumstances. This study compared a student teacher's experience reflecting with a video analysis tool to her experience participating in her department's traditional reflection method, which was a post-lesson conference with her supervisor. The researcher investigated how these reflection methods influenced the student teacher's ability to collect data about her teaching, make judgments about her teaching, design intervention plans for future teaching situations, and evaluate her intervention plans. The participants indicated that both video analysis and the traditional reflection method were beneficial for reflection. Although both methods were beneficial, the student teacher felt that using video analysis to reflect was more useful than the department's traditional reflection method for helping her understand the changes she wanted to make in her teaching. The student teacher felt that video analysis was more useful than the traditional reflection method because it allowed her to notice things that she did not remember or attend to during her lesson, it helped her focus her reflections on specific aspects of her teaching, and the video clips provided evidence to support her discussions with her supervisor.

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Figueiredo, Rafael Saraiva. "Name service for accessing personal services from Web servers." Master's thesis, Universidade de Aveiro, 2015. http://hdl.handle.net/10773/18566.

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Mestrado em Engenharia de Computadores e Telemática
O propósito desta tese teve como base o desenvolvimento de um mecanismo que permitisse que servidores Web (ou serviços) descobrissem e usassem serviços Web que executam localmente em relação aos clientes Web (serviços pessoais). Para conseguir isto, desenvolvemos uma solução que permita a um servidor de nomes local a descoberta de serviçoos pessoais (i.e., resolver nomes para referências para serviços) e uma solução que permita aos servidores Web a possibilidade de invocar esses serviços pessoas usando as referências obtidas. A comunicação entre os servidores Web e o servidor de nomes local ou os serviços pessoais e mediada pelo cliente Web local (um navegador) usando um novo mecanismo de redireção HTTP.
HTTP, Web service, personal service, Broker, browser, HTTP redirection, name server. The purpose of this thesis was to devise a mechanism to allow Web servers (or services) to nd out and use other Web services running locally to Web clients (personal services). To do so, we had to create a solution for having a local name server to nd out personal services (i.e., resolve names to service handles) and a solution for allowing Web servers to invoke personal services given those handles. The communication between the Web servers and the local name server or the personal services is mediated by the Web client (a browser) using a new HTTP redirection mechanism.

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van, Wyk David. "The effects of micro data centres for multi-service access nodes on latency and services." Diss., University of Pretoria, 2017. http://hdl.handle.net/2263/61342.

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Latency is becoming a significant factor in many Internet applications such as P2P sharing and online gaming. Coupled with the fact that an increasing number of people are using online services for backup and replication purposes and it is clear that congestion increases exponentially on the network. One of the ways in which the latency problem can be solved is to remove core network congestion or to limit it in such a way that it does not pose a problem. In South Africa, Telkom rolled out MSAN cabinets as part of their Fibre-to-the-curb (FTTC) upgrades. This created an unique opportunity to provide new services, like BaRaaS, by implementing micro data centres within the MSAN to reduce congestion on the core network. It is important to have background knowledge on what exactly latency is and what causes it on a network. It is also essential to have an understanding of how congestion (and thus latency) can be avoided on a network. The background literature covered helps to determine which tools are available to do this, as well as to highlight any possible gaps that exist for new congestion control mechanisms. A simulation study was performed to determine whether implementing micro data centres inside the MSAN will in fact reduce latency. Simulations must be done as realistically as possible to ensure that the results can be correlated to a real-world problem. Two different simulations were performed to model the behaviour of the network when backup and replication data is sent to the Internet and when it is sent to a local MSAN. In both models the core network throughput as well as the Round Trip Times (RTTs) from the client to the Internet and the MSAN cabinets, were recorded. The RTT results were then used to determine whether latency had been reduced. Once it was established that micro data centres will indeed help in reducing congestion and latency on the network, the design of a storage server, for inclusion inside the MSAN cabinet, was done. A cost benefit analysis was also performed to ensure that the project will be financially viable in the long term. The cost analysis took into account all the costs associated with the project and then expanded them over a certain period of time to determine initial expenses. Extra information was then taken into consideration to determine the possible income per year as well as extra expenditure. It was found that the inclusion of a micro data centre reduces latency on the core network due to the removal of large backup data traffic from the core network, which reduces congestion and improves latency. From the Cost Benefit Analysis (CBA) it was found that the BaRaaS service is viable from a subscription point of view. Finally, the relevant conclusions with regard to the effects of data centres in MSAN cabinets on latency and services were drawn.
Vertraagtyd word 'n belangrike faktor in baie Internet toepassings soos P2P-deel en aanlyn-speletjies. Gekoppel met die feit dat 'n toenemende getal mense internetdienste gebruik vir rugsteun en replisering, word opeenhoping in die datanetwerk eksponensieel verhoog. Een van die maniere waarop die vertraagtydsprobleem opgelos kan word, is om opeenhoping in die kern-datanetwerk te verwyder of om dit op so 'n manier te beperk dat dit nie 'n probleem veroorsaak nie. In Suid Afrika het Telkom MSAN-kaste uitgerol as deel van hulle "Fibre-to-the-Curb" (FTTC) opgraderings. Dit het 'n unieke geleentheid geskep om nuwe dienste te skep, soos BaRaaS, deur mikro-datasentrums in die MSAN-kas te implementeer om opeenhoping in die kernnetwerk te verminder. Dit is belangrik om agtergrondkennis te hê van presies wat vertraagtyd is en waardeur dit op die netwerk veroorsaak word. Dit is ook belangrik om 'n begrip te hê van hoe opeenhoping (en dus vertraagtyd) op die netwerk vermy kan word. Die agtergrondsliteratuur wat gedek is help om te bepaal watter instrumente beskikbaar is, asook om moontlikhede na vore te bring vir nuwe meganismes om opeenhoping te beheer. 'n Simulasiestudie is uitgevoer om vas te stel of die insluiting van datasentrums in die MSAN-kaste inderdaad 'n verskil sal maak aan die vertraagtyd in die datanetwerk. Twee simulasies is uitgevoer om die gedrag van die netwerk te modelleer wanneer rugsteun- en repliseringsdata na onderskeidelik die Internet en die plaaslike MSAN gestuur word. In altwee is die deurset van die kernnetwerk sowel as die sogenaamde Round Trip Times (RTTs) van die kliënt na die Internet en die MSAN-kaste aangeteken. Die RTTs-resultate sal gebruik word om te bepaal of vertraagtyd verminder is. Nadat dit bepaal is dat mikro-datasentrums wel die opeenhoping in die netwerk sal verminder, is die ontwerp van 'n stoorbediener gedoen, vir insluiting in die MSAN-kas. 'n Koste-ontleding neem alle koste wat met die projek verband hou in ag en versprei dit dan oor 'n bepaalde tydperk om die aanvanklike kostes te bepaal. Verdere inligting word voorts in ag geneem om die moontlike inkomste per jaar sowel as addisionele uitgawes te bepaal. Daar is bevind dat die insluiting van 'n mikro-datasentrum vertraagtyd verminder deur groot rugsteen-dataverkeer van die kernnetwerk af te verwyder. Die koste-ontleding het gewys dat uit 'n subskripsie-oogpunt, die BaRaaS diens lewensvatbaar is. Uiteindelik word relevante gevoltrekkings gemaak oor die effek van datasentrums in MSAN-kaste op vertraagtyd en dienste.
Dissertation (MEng)--University of Pretoria, 2017.
Electrical, Electronic and Computer Engineering
MEng
Unrestricted

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Kridler, Jamie Branam. "Vision 2042: Notes Toward a Radical Order Transformed." Digital Commons @ East Tennessee State University, 2010. https://dc.etsu.edu/etsu-works/5880.

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Kallab, Vojtěch. "Nástavba informačního systému Notes pro mobilní zařízení." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2015. http://www.nusl.cz/ntk/nusl-225117.

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The main aim of this diploma´s thesis is the devise and the implementation of the extension of information system for mobile phones. The target is to make it easy to get the needed information even when the user is not present in the company and make recieving and working with information effective. In the first part there are described methods and processes which form the theoretical part of this thesis. The second part is related to the analysis of the current state of this company. This part is the basis for the third part which is the real devise for a new solution.

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King, Rebecca Jane. "Integration of audit into an outpatient asthma clinic : the transition from traditional to computerised medical notes." Thesis, Keele University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.297318.

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Hagemeier, Nicholas E., and Erin L. Hankins. "The Note-Taking Service: Perceptions of Service Implementation in a College of Pharmacy." Digital Commons @ East Tennessee State University, 2012. https://dc.etsu.edu/etsu-works/1463.

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Objectives: To assess student perceptions of a student-initiated note-taking service (NTS) upon implementation of a NTS in the first professional year of the Doctor of Pharmacy curriculum in a college of pharmacy. Method: A survey instrument assessing perceptions of a NTS was developed and administered to first professional year students (N = 75, 92.6% response rate) prior to the conclusion of the first semester in which the student-initiated service was implemented. Topics addressed in the survey instrument included: service quality, perceived impact on course attendance, grades and student-faculty interaction, willingness to pay for services, and percent of time devoted to study materials, including NTS notes. Non-parametric tests were employed to examine student perceptions across demographic characteristics. Results: 41% of respondents indicated they use the NTS. Approximately 38% of respondents perceived the NTS would increase learning and positively influence grades. Overall, the students were divided in their perceptions with large percentages agreeing and disagreeing with a majority of instrument items. Males were more likely to use the service in P2 and P3 years (p = 0.002), more willing to pay for the service (p = 0.013), and less likely to take their own notes (p = 0.002). Students who used the service estimated lower semester GPAs than those who did not (p = 0.025). Implications: This exploratory study indicated significant variation in student perceptions regarding the NTS. Future research is warranted to better understand both positive and negative aspects of service implementation, particularly as they relate to student learning.

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Valderas, Núñez Darwin Abdon. "Integration of sensor nodes with IMS." Thesis, KTH, Kommunikationssystem, CoS, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-91678.

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The number of users adopting cellular system technologies over the past years has been enormous. This rapid adoption is not comparable in any other technology. Additionally, this has meant that these users have (at least some of the time) the possibility of connectivity to others and to remote services (advanced data and voice services, such as video conferences, mobile TV, navigation, and location services). Increasingly there is no longer a clear boundary between the wide area cellular network and Internet services, as the wide area cellular network is evolving from circuit switched based technologies to an IP based system; hence these wide area cellular systems are simply becoming part of the Internet. This evolution has become a challenge for the telecommunication operators, who have been used to completely controlling their network services and billing. In an attempt to maintain this traditional role for telecommunication operators, telecommunication vendors have introduced the IP Multimedia Subsystem (IMS). A system designed to enable telecommunication operators to be able to bill the user for all of the different services accessed through the wide area cellular network. The goal of such a system is to prevent the telecommunication operators from becoming a "bit pipe" (i.e., simply providing "commodity priced" connectivity). Another relevant change that has direct impact upon this project is the role of mobile handsets as gateways between sensor networks and other networks (especially the wide area cellular networks or Internet). This has lead to integrated solutions, such as the smart house concept, mobile health monitoring, and others. This thesis project is a collaboration between Ericsson Research and SUUNTO, in which we have implemented a system for monitoring a user’s heart rate via IMS. The system (has a special focus on sports activities, but it could easily be adapted for health care) is based on internetworking sensor networks, specifically a heart rate belt that transmits data wirelessly, with the IMS network through a mobile phone or a PC. The implemented service runs on top of the SIP Presence service. This project examines two alternatives. The first is a mobile scenario, in which a person is jogging outdoors, in this setting the sensor node communicates via the person’s mobile phone, through the IMS network to a monitoring application. The second scenario is more fixed; such as a gym environment, where the sensor node communicates with a personal computer which in turn publishes the data via IMS. Once the data has been published to the Presence and group management sever, an application server subscribed to the athlete’s Presence service will be notified. The people interested in viewing this data will be able to see it through any web-browser. It will even be possible to archive, and download the data for later use by other applications. The system is not optimized yet for a truly real-time communication, as the Presence service does not offer this as other technologies (RTP, SRTP or XMPP) do. There is a big delay difference between the mobile and the fixed solution. We can say that the fixed solution is almost a real-time system for transmitting low frequency data as heart rate information. This project is a first approach to a final high performance system.
Antalet användare som har fått tillgång till mobiltelefon under de senaste åren har varit enorm. Detta snabbt antagande är inte jämförbar med någon annan teknik. Dessutom innebär också detta att dessa användare har (åtminstone ibland) möjligheten till anslutning till andra och till avlägsna tjänster (avancerad data-och taltjänster, t.ex. videokonferenser, mobil TV, navigation och lokaliseringstjänster). Idags läget finns det inte längre en tydlig gräns mellan cellulära nätet och Internettjänster. Efter cellulära nätets utveckling från kretskopplad teknik till ett IP-baserat system, så håller dom cellulära systemem på att bli en del av Internet. Denna utveckling har blivit en utmaning för telekommunikationsföretag, som har varit vana att helt kontrollera sina nättjänster och fakturering. I ett försök att bevara denna traditionella roll för telekommunikationsföretag, har telekom-leverantörer infört IP Multimedia Subsystem (IMS). Ett system som syftar på att kunna göra telekommunikationsföretagen kapabla till att debitera användaren för alla dem olika tjänsterna som han har tillgång till via deras cellulära nät. Målet med ett sådant system är att förhindra telekommunikationsföretagen från att bli en "bit pipe" (dvs bara ge prissatt konnektivitet). En annan betydelsefull förändring som har direkt inverkan på detta projekt är den roll som mobiltelefoner kan utföra som gateways mellan sensornätverk och cellulära nät eller Internet. Detta har påverkat flera integrerade lösningar, såsom smarta hus begrepp, mobil hälsoövervakning och andra. Denna examensarbetes projekt är ett samarbete mellan Ericsson Research och Suunto, där vi har implementerat ett system för övervakning av en användares hjärtslag genom IMS. Systemet (har en särskild inriktning på sport, men det kan lätt anpassas för hälso-och sjukvård) är baserad på Internetworking sensornätverk, särskilt en hjärtfrekvens bälte som överför data trådlöst till en mobiltelefon eller en dator, som sedan skickar ut datan via IMS-nätverket. Tjänsten genomförs ovan på SIP Presence service. Projektet undersöker två alternativ. Den första är en mobil scenario; exempelvis där en person joggar utomhus, vid ett sådant tillfälle kommunicerar sensorn noden genom personens mobiltelefon, via IMS-nätverk med en övervaknings application. Det andra scenariot är mer statiskt och ger inte samma rörlighet, denna lösning passar bättre in på gym activiteter eller liknande. I denna implementering kommunicerar sensorn noden med en persondator som i sin tur publicerar uppgifterna via IMS. När uppgifterna har publicerats hos Presence and group management (PGM) servern. En applikations server som är uppskriven på att få friidrottarens närvaro tjänst kommer att meddelas. De människor som intresserade av att se denna data kommer att kunna göra det via någon webbläsare. Det kommer även att vara möjligt att arkivera och hämta datan för senare en användning men andra tillämpningar. Systemet är inte optimerad ännu för en verkligt realtid, eftersom Presence service inte erbjuder detta ännu som andra tekniker (RTP, SRTP eller XMPP) gör. Det finns en stor fördröjning skillnad mellan den mobila och fasta lösningen. Vi kan säga att den fasta lösningen är nästan ett realtids-system för överföring av lågfrekventa uppgifter som hjärtslag information. Detta projekt är en första strategi för en slutlig högpresterande system.

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Tuesta, Madueño Arturo, and Chiroque Roberto Polo. "Notes to the Tax System of Public Works of Infrastructure and Public Services Concessions." Derecho & Sociedad, 2015. http://repositorio.pucp.edu.pe/index/handle/123456789/119109.

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In this report, the main Income Tax aspects related to the concessions of public infrastructure and of public services regulated by Supreme Decrete N° 059-96-PCM are analyzed. Hence, the applicable rules for investments made by the concessionaires and the treatment of self- sustained and co-financed concessions will be examined. To conclude this report, legislative changes that, in opinion of the authors would help provide greater security to the current regime on benefit of the Peruvian State and the investors, are suggested.
En este artículo se analiza el tratamiento para fines del Impuesto a la Renta de las concesiones de obras públicas de infraestructura y de servicios públicos regulados por el Decreto Supremo N° 059-96-PCM, que rige la entrega de las referidas concesiones. Así, se examina el régimen aplicable a las inversiones realizadas por los concesionarios, el tratamiento de las concesiones auto-sostenibles y las concesiones cofinanciadas. Para culminar este artículo, se proponen cambios legislativos que, en opinión de los autores, ayudarían a dotar de mayor seguridad al régimen actual en beneficio del Estado peruano y de los inversionistas.

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Lo, Chu-Ling. "The impact of note-taking in counseling." Diss., University of Iowa, 2013. https://ir.uiowa.edu/etd/2569.

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The purpose of this study was to discover the impact of counselors' note-taking on their interview recall, clinical judgment, and general judgment of clients. The notes taken by the subjects were analyzed to discover the role that notes play in the counseling process. Thirteen master's students in the Rehabilitation Counseling program were recruited as participants. The results indicate that counselors' note-taking does not enhance their ability to recall but reviewing complete notes does. In addition, counselors' capability of clinical judgment is not different whether they take notes and review, take notes but do not review, do not take notes, or review complete notes. There is no evidence showing that note-taking helps or impedes counselors from making accurate clinical judgment. The qualitative analysis of the notes indicates that subjects do not take notes with observable organization and enough content. Thus, the result suggests that counselors do not spend much cognitive effort on taking notes and do not utilize note-taking as a strategy to manage information. Moreover, when subjects refrain from taking notes, they can perform on recall and clinical judgment as well as when they take notes in the session and when they review complete notes. Thus, it is suggested that novice counselors would be better off not taking notes if they cannot take complete notes. However, there is also some evidence suggesting that counselors may perceive the client differently when they do not take notes in the session. The results suggest that counselor educators can develop strategies for counselors-in-training to create complete notes. Future research can recruit experienced counselors as participants for comparison.

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Orre, Carl Johan. "Using Technologies with Care : Notes on Technology Assimilation Processes in Home Care." Doctoral thesis, Umeå : Department of Informatics, Umeå University, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-22443.

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Huapaya, Tapia Ramón. "Notas sobre el Concepto Jurídico del Servicio Público en nuestro Ordenamiento Legal." Derecho & Sociedad, 2015. http://repositorio.pucp.edu.pe/index/handle/123456789/118143.

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Huapaya, Tapia Ramón. "Notas sobre el Concepto Jurídico del Servicio Público en nuestro Ordenamiento Legal." Pontificia Universidad Católica del Perú (PUCP), 2011. http://hdl.handle.net/10757/604686.

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Bodamer, Stefan. "Verfahren zur relativen Dienstgütedifferenzierung in IP-Netzknoten = Mechanisms for relative quality of service differentiation in IP network nodes /." Stuttgart : Inst. für Kommunikationsnetze und Rechnersysteme, 2004. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=012935052&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.

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Linhares, Edjane Maria Vale. "A viol?ncia nossa de cada fam?lia: notas sobre a viol?ncia intrafamiliar contra a crian?a." Universidade Federal do Rio Grande do Norte, 2004. http://repositorio.ufrn.br:8080/jspui/handle/123456789/17889.

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Made available in DSpace on 2014-12-17T15:46:21Z (GMT). No. of bitstreams: 1 EdjaneMVL.pdf: 339432 bytes, checksum: ffec700923ba593843216b4b77b1bccd (MD5) Previous issue date: 2004-11-26
Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior
This study, done in a master program, evaluated the thematic regarding the domestic physical violence against children. The data was obtained through the SOS children program from Natal municipality. The used methodology involved either recorded date as well as an interview done with a professional who had been working on the SOS program for more than ten years. The study emphasizes violent situations where children were involved, in particular, beaten by their parents. Our goal was to understand the domestic violence phenomena against children, using as parameter the social context where the families were inserted
Este estudo ? o resultado da pesquisa de mestrado, cuja tem?tica aborda a quest?o da viol?ncia intrafamiliar contra a crian?a. Atrav?s do programa SOS Crian?a, localizado no munic?pio de Natal, foi realizada uma pesquisa documental e de campo, com ?nfase nas situa??es de viol?ncia f?sica contra crian?as, em especial, o espancamento praticado por seus pais. O referido trabalho teve como subs?dio, uma pesquisa bibliogr?fica e a pr?pria experi?ncia da mestranda, educadora social h? 10 anos no referido programa. A inten??o deste estudo ? compreender como se processa a reprodu??o do fen?meno da viol?ncia intrafamiliar contra a crian?a, tendo como par?metro o contexto social em que se inserem as fam?lias estudadas

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Rodriguez, J., X. Koudouridis, M. Gelabert, M. Tayyab, R. Bassoli, F. H. P. Fitzek, R. Torre, et al. "Secure Virtual Mobile Small Cells: A Stepping Stone Towards 6G." IEEE, 2001. http://hdl.handle.net/10454/18488.

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Yes
As 5th Generation research reaches the twilight, the research community must go beyond 5G and look towards the 2030 connectivity landscape, namely 6G. In this context, this work takes a step towards the 6G vision by proposing a next generation communication platform, which aims to extend the rigid coverage area of fixed deployment networks by considering virtual mobile small cells (MSC) that are created on demand. Relying on emerging computing paradigms such as NFV (Network Function Virtualization) and SDN (Software Defined Networking), these cells can harness radio and networking capability locally reducing protocol signalling latency and overhead. These MSCs constitute an intelligent pool of networking resources that can collaborate to form a wireless network of MSCs providing a communication platform for localized, ubiquitous and reliable connectivity. The technology enablers for implementing the MSC concept are also addressed in terms of virtualization, lightweight wireless security, and energy efficient RF. The benefits of the MSC architecture towards reliable and efficient cell-offloading are demonstrated as a use-case.
This project has received funding from the European Union´s H2020 research and innovation program under grant agreement H2020-MCSAITN- 2016-SECRET 722424 [2].

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Rodriguez, J., X. Koudouridis, M. Gelabert, M. Tayyab, R. Bassoli, F. H. P. Fitzek, R. Torre, et al. "Secure Virtual Mobile Small Cells: A Stepping Stone Towards 6G." IEEE, 2021. http://hdl.handle.net/10454/18488.

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Yes
As 5th Generation research reaches the twilight, the research community must go beyond 5G and look towards the 2030 connectivity landscape, namely 6G. In this context, this work takes a step towards the 6G vision by proposing a next generation communication platform, which aims to extend the rigid coverage area of fixed deployment networks by considering virtual mobile small cells (MSC) that are created on demand. Relying on emerging computing paradigms such as NFV (Network Function Virtualization) and SDN (Software Defined Networking), these cells can harness radio and networking capability locally reducing protocol signalling latency and overhead. These MSCs constitute an intelligent pool of networking resources that can collaborate to form a wireless network of MSCs providing a communication platform for localized, ubiquitous and reliable connectivity. The technology enablers for implementing the MSC concept are also addressed in terms of virtualization, lightweight wireless security, and energy efficient RF. The benefits of the MSC architecture towards reliable and efficient cell-offloading are demonstrated as a use-case.
This project has received funding from the European Union´s H2020 research and innovation program under grant agreement H2020-MCSAITN- 2016-SECRET 722424 [2].

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Dridi, Khaled. "Spécification du protocole MAC pour les réseaux IEEE 802.11e à différentiation de services sous contrainte de mobilité." Thesis, Paris Est, 2011. http://www.theses.fr/2011PEST1016/document.

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Cette thèse a pour objectif de proposer de nouvelles approches d'ordonnancement, de coopération et de gestion de la mobilité dans les réseaux sans fil de type IEEE 802.11. Le maintien de la qualité de service (QoS), au niveau MAC, représente la caractéristique fondamentale de ces approches. L'analyse des mécanismes existants nous a conduits à retenir le protocole EDCF, supportant la QoS, comme une base de travail pour l'ensemble de nos propositions. Dans le but de pallier certaines faiblesses du standard 802.11, une nouvelle architecture à base de multi-ordonnanceurs HCF-T, est proposée. Les performances obtenues sont exprimées en termes de gestion du trafic, de maintien du débit, d'élimination de collisions et de réduction de la charge du réseau. Ensuite, un schéma coopératif est présenté et analysé. Il comporte une étude de deux protocoles de relayage AAF et DAF ainsi qu'une évaluation d'un ensemble de techniques de combinaison au niveau du récepteur. Concernant la problématique de la mobilité, nous avons retenu et analysé un scénario prenant en considération les différentes situations rencontrées dans un modèle réel. Un algorithme de résolution multi-couvertures est proposé afin de traiter l'accès dans les zones de recouvrement. Cette étude a mené à distinguer trois régimes de mobilité : faible, moyen et fort. Les performances sont évaluées en fonction des métriques MAC et pour chaque mode de mobilité, un schéma de synthèse est établi
This thesis proposes a new approach relating to the packets scheduling algorithm, the cooperation scheme and the nodes' mobility for IEEE 802.11 wireless network family. Considering the QoS delivery process at the MAC level consists the main feature of the proposal research study. The analysis of the current mechanisms leads to keep the protocol EDCF as the basic model for our work platform. In order to overcome the weakness of the earlier 802.11 standard, a new model based on multi-scheduler algorithm, called HCF-T, is proposed. The achieved performances are summarized following several criteria: traffic control, throughput improving, collisions avoidance, and network load decreasing. Furthermore, in the way of getting better results according to the PHY layer, we presented and analyzed a model of cooperative diversity scheme. It included a couple of relaying protocols AAF and DAF supported by a set of combining techniques to backup the signal at the receiver. To support node's mobility within EDCF, we built-up a model of WLAN which able to track node motion and control the access as in real condition. In the case of overlapping APs ranges, we developed a Multi-coverage algorithm aiming to carry out the session associations. As a result, three levels (Low, Medium, and High) of node's speed are discerned. Finally, EDCF has been implemented on various static and dynamic scenarios. The performances, based on the main MAC-layer metrics, such as throughput, End-2-End delay, and jitter, have been classified and comprehensively evaluated

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Arantes, Rodrigo Caetano. "A longevidade na metrópole de São Paulo pelas notas de falecimento no Jornal da Tarde (2004-2005)." Pontifícia Universidade Católica de São Paulo, 2007. https://tede2.pucsp.br/handle/handle/12522.

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Made available in DSpace on 2016-04-27T18:47:24Z (GMT). No. of bitstreams: 1 Rodrigo Caetano Arantes.pdf: 3142450 bytes, checksum: 05a3dd7c5176efac1de30a0664e0f859 (MD5) Previous issue date: 2007-07-05
This dissertation is the study of longevity in the metropolitan area of São Paulo / Brazil, by the analysis of the obituaries on Jornal da Tarde, a local paper. The 665 obituaries were analyzed throughout the periods of June, July and August of 2004 and 2005. The goal was to verify the longevity of the elderly residents of the metropolitan area of São Paulo and the aspects contained in the obituaries like: age range of the elderly, marital status, gender prevalence (feminine or masculine), if the elderly left their families and families left by the elderly. Utilized the SPSS (version11.0) to deal with statistics of data, because of the use of multiple choice questions, through a questioner, elaborated from the obituary clippings. The results obtained showed a greater range of age for the feminine gender, of 87,4 years of age with the deviation standard of 8,6 years and, for the masculine gender of 82.1 years with deviation standard of 9 years. In relation to the marital status a big majority of the elderly was in the category of widows and the men in the category of being married/living together. In the marital status without a partner (single, widow, separated/divorced), a bigger frequency of the feminine gender was observed and with a partner (married/living together), a bigger frequency of the masculine gender was noticed. Another significant association was encountered in relation to the marital status, given that the obituaries of the elderly without partners concentrated in the biggest age ranges and with partners in the smallest age ranges. It was not encountered significant association with relation to the families left and type of family left. The process to increase longevity in Brazil can be evidenced by obituaries of the elderly. The longevity is a current phenomenon in the country and it is determined by the highest age reached by the elderly. This process has major predominance in the female gender, being called by feminism of old age
Esta dissertação é o estudo da longevidade na metrópole de São Paulo / Brasil, pela análise das notas de falecimento no Jornal da Tarde, um jornal local. Foram analisadas 665 notas de falecimento nos períodos de junho, julho e agosto de 2004 e 2005. Objetivou-se verificar a longevidade dos idosos moradores da metrópole de São Paulo e aspectos contidos nas notas de falecimento, como: faixa etária dos idosos, estado civil, prevalência de sexo (feminino ou masculino), se o idoso deixou familiares e familiares deixados pelo idoso. Utilizou-se o SPSS (versão 11.0) para tratamento estatístico dos dados, pois se trabalhou com perguntas fechadas, por meio de um questionário, elaboradas a partir dos próprios recortes de notas de falecimento. Os resultados obtidos mostram uma média de idade maior para o sexo feminino, de 87,4 anos com desvio padrão de 8,6 anos e, para o sexo masculino de 82,1 anos com desvio padrão de 9 anos. Em relação ao estado civil a grande maioria das idosas se enquadrava na categoria de viúvas e os homens na categoria de casados / vive junto. No estado marital sem companheiro (solteiro, viúvo, separado / divorciado) a maior freqüência foi verificada no sexo feminino e com companheiro (casado / vive junto) no sexo masculino. Houve ainda resultado significante em relação ao estado marital, sendo que o falecimento de idosos sem companheiros se concentrou em faixas etárias maiores e com companheiros em faixas etárias menores. Não foi encontrada associação significativa com relação aos familiares deixados e tipo de familiar deixado. O processo do aumento da longevidade no Brasil pode ser evidenciado pelas notas de falecimento de idosos. A longevidade é um fenômeno atual no país e é determinada pelo tempo de vida maior alcançado pelos idosos. Esse processo tem maior predominância no sexo feminino, sendo chamado de feminização da velhice

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Abidoye, Ademola Philip. "Energy optimization for wireless sensor networks using hierarchical routing techniques." University of the Western Cape, 2015. http://hdl.handle.net/11394/7064.

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Philosophiae Doctor - PhD
Wireless sensor networks (WSNs) have become a popular research area that is widely gaining the attraction from both the research and the practitioner communities due to their wide area of applications. These applications include real-time sensing for audio delivery, imaging, video streaming, and remote monitoring with positive impact in many fields such as precision agriculture, ubiquitous healthcare, environment protection, smart cities and many other fields. While WSNs are aimed to constantly handle more intricate functions such as intelligent computation, automatic transmissions, and in-network processing, such capabilities are constrained by their limited processing capability and memory footprint as well as the need for the sensor batteries to be cautiously consumed in order to extend their lifetime. This thesis revisits the issue of the energy efficiency in sensor networks by proposing a novel clustering approach for routing the sensor readings in wireless sensor networks. The main contribution of this dissertation is to 1) propose corrective measures to the traditional energy model adopted in current sensor networks simulations that erroneously discount both the role played by each node, the sensor node capability and fabric and 2) apply these measures to a novel hierarchical routing architecture aiming at maximizing sensor networks lifetime. We propose three energy models for sensor network: a) a service-aware model that account for the specific role played by each node in a sensor network b) a sensor-aware model and c) load-balancing energy model that accounts for the sensor node fabric and its energy footprint. These two models are complemented by a load balancing model structured to balance energy consumption on the network of cluster heads that forms the backbone for any cluster-based hierarchical sensor network. We present two novel approaches for clustering the nodes of a hierarchical sensor network: a) a distanceaware clustering where nodes are clustered based on their distance and the residual energy and b) a service-aware clustering where the nodes of a sensor network are clustered according to their service offered to the network and their residual energy. These approaches are implemented into a family of routing protocols referred to as EOCIT (Energy Optimization using Clustering Techniques) which combines sensor node energy location and service awareness to achieve good network performance. Finally, building upon the Ant Colony Optimization System (ACS), Multipath Routing protocol based on Ant Colony Optimization approach for Wireless Sensor Networks (MRACO) is proposed as a novel multipath routing protocol that finds energy efficient routing paths for sensor readings dissemination from the cluster heads to the sink/base station of a hierarchical sensor network. Our simulation results reveal the relative efficiency of the newly proposed approaches compared to selected related routing protocols in terms of sensor network lifetime maximization.

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Gómez, Domínguez Pablo. "La Corporació Catalana de Mitjans Audiovisuals (CCMA) davant els reptes de la transformació digital (2014-2018): audiències, rutines professionals i noves tendències a Televisió de Catalunya (TVC) i Catalunya Ràdio." Doctoral thesis, Universitat Pompeu Fabra, 2019. http://hdl.handle.net/10803/668175.

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La recerca analitza les principals transformacions digitals de la CCMA (TVC i Catalunya Ràdio) pel que fa a l’evolució de la seva audiència (lineal, digital i social), les rutines professionals dels gestors digitals i socials d’ambdós mitjans entre 2014 i 2018 i les oportunitats de futur per a la corporació. Per a l'anàlisi s'ha disposat una metodologia que combina l'explotació quantitativa de totes les dades d'audiència disponibles per als àmbits especificats, així com el desenvolupament i l'aplicació de matrius d'anàlisi pròpies, l'explotació qualitativa a través d'entrevista en profunditat als gestors digitals de TVC i de Catalunya Ràdio i l'enquesta prospectiva a experts estatals i nacionals en el sector de la comunicació. Aquesta metodologia, amb l'excepció del panell d'experts, s'ha aplicat a una mostra representativa de 34 programes de TVC i de Catalunya Ràdio. Les conclusions revelen que la CCMA adreça constantment els reptes que es deriven d’una estructura audiovisual en constant canvi. Tot i això, els resultats plantegen importants reptes per als seus mitjans quant a l’envelliment del perfil de públic a tots els àmbits i per a la majoria de programes examinats. D’altra banda, la necessitat de plantejar estratègies digitals que tinguin en compte una transformació accelerada de les rutines professionals on trobem un procés complex de transició entre la cultura professional lineal i digital. Finalment, els experts consultats consideren que la corporació encara pot assolir el seu màxim potencial a l’àmbit digital, tot i que són conscients que les circumstàncies actuals plantegen obstacles per a revertir les tendències de consum i modificar l’estructura professionals segons les necessitats que es van detectar.
This research analyzes the main digital transformations of CCMA (TVC and Catalunya Ràdio) related to the evolution of its audience (linear, digital and social), the digital and social managers’ professional routines of each media between 2014 and 2018, and the future challenges fort this public corporation. For the analysis, we set a methodology that combines a quantitative exploitation of all available audience data for each environment, the development and application of our own matrix, a qualitative analysis through an in-depth interview (digital and social managers) and a prospective survey to national and state experts in the communication sector. All this methodology, except for the expert panel, have been applied to a representative sample of 34 TVC and Catalunya Ràdio programs. The findings reveal that the CCMA steadfastly addresses the challenges that arise from a constantly changing audiovisual market. However, the results present important challenges for their media regarding the aging of the public profile in all areas and for most examined programs. On the other hand, the need to formulate digital strategies that consider an accelerated transformation of professional routines where we find a complex process of transition between linear and digital professional culture. Finally, the experts consider that the Corporation can still reach its maximum potential in the digital field, although they are aware that the current circumstances pose obstacles to reverse the tendencies of consumption and to change the state of the professional structure that we have detected.

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Maccha, Valle Elizabeth Honorata. "Relación que existe entre el nivel de conocimiento y la práctica de las enfermeras del servicio de emergencias de adultos respecto al uso del registro de notas de enfermería del Servicio de Emergencias de Adultos del Hospital Nacional Guillermo Almenara Irigoyen. Noviembre -diciembre 2006, enero-marzo del 2007." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2008. https://hdl.handle.net/20.500.12672/12638.

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El documento digital no refiere asesor
Determina la relación que existe entre el nivel de conocimiento y la práctica de las enfermeras del servicio de Emergencia respecto al uso de un registro de notas de enfermería y como objetivos específicos plantea identificar el nivel de conocimiento de las enfermeras del servicio de Emergencias de adultos respecto al uso del registro de notas de enfermería, así como también identificar la práctica de las enfermeras del servicio de emergencias de adultos respecto al uso del registro de notas de enfermería. Para ello, se utilizó la investigación cuantitativa donde se hizo un esfuerza por excelencia en investigación y requiere disciplina, ajuste detallado y una estricta minuciosidad que requiere un control que implica la imposición de normas, la cual pude ser cuantificable; por parte del investigador para disminuir la posibilidad de error y por lo tanto aumentar la probabilidad de que los resultados del estudio sean un reflejo preciso de la realidad. El tipo es descriptivo, que investigó y describió la evaluación del uso del registro de las anotaciones de enfermería como un instrumento de registros de enfermería en el servicio de emergencias de adultos. El nivel fue de Primer nivel (descriptivo) y de acuerdo a las variables es prospectivo ya que recolectó datos en un determinado tiempo con el propósito de que éste estudio pueda ser base para estudios posteriores. La población estuvo conformada por 40 enfermeros asistenciales que laboran en el servicio de emergencia del Hospital Nacional Guillermo Almenara Irigoyen y 80 registros de anotaciones de enfermería. La técnica fue la encuesta y el instrumento el cuestionario estructurado y la otra técnica fue la observación y el instrumento fue la lista de chequeo.
Trabajo académico

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Martínez, Lizama Carlos. "Las nuevas empresas internacionales de servicios intensivos en conocimiento: un estudio cualitativo multinivel de la influencia del entorno institucional, el capital humano y su modelo de negocio." Doctoral thesis, Universitat Autònoma de Barcelona, 2017. http://hdl.handle.net/10803/458017.

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La presente Tesis se centra en el desarrollo e internacionalización de las nuevas empresas internacionales (NEI) de servicios intensivos en conocimiento, con el objetivo principal de obtener una mejor comprensión de los factores que inciden en su desarrollo. La investigación se lleva a cabo mediante una metodología cualitativa basada en el estudio de casos. El análisis de los factores institucionales externos y el análisis de las características de los fundadores se realizan mediante el diseño de investigación de casos múltiples desde el enfoque de la Teoría Económico Institucional en el capítulo 3 y, de la Teoría del Capital Humano en el capítulo 4 respectivamente. En el capítulo 5 se realiza el análisis del modelo de negocio de una NEI de servicios intensivos en conocimiento siguiendo el diseño de caso único, considerando el enfoque de la lógica de la efectuación en el proceso de toma de decisiones. Los principales hallazgos de esta investigación muestran la incidencia que tienen los factores institucionales externos en el desarrollo de las NEI de servicios intensivos en conocimiento, sobre todo en la red relacional de las mismas. Además, el capital humano de sus fundadores y gestores juega un papel determinante, debido a que en este tipo de empresas el conocimiento acumulado es fuente determinante para la generación de ventajas competitivas. Por último, el análisis del modelo de negocio muestra a través de la interdependencia entre las elecciones y consecuencias, que tanto el enfoque de la lógica de la efectuación como de la causación deben ser complementarios en el proceso de la toma de decisiones. En general, la presente tesis tiene implicaciones teóricas y prácticas. Desde el punto de vista teórico, contribuye a la generación de conocimiento en determinados aspectos en este incipiente campo de investigación, y se avanza en las teorías y enfoques utilizados como marcos de referencia válidos en este particular contexto. Los resultados obtenidos pueden ser de gran utilidad a nivel de políticas gubernamentales y en la praxis en el entorno empresarial, ya que se genera la evidencia suficiente para que se considere a las empresas de servicios intensivos en conocimiento, como un segmento de la economía que ha de liderar el desarrollo de los países en el marco internacional.
The following doctoral dissertation is focused on the development and internationalization of International New Ventures (INV), with a main target to achieve a better comprehension of the factors that influence their development. The investigation is carried out by a qualitative methodology based on the study of several firm cases. The analysis of the institutional external factors as well as of the characteristics of their founders is performed by investigating the pattern of multiple cases from the Institutional Economic Theory in chapter 3, and from the Human Capital Theory in the chapter 4. The chapter 5 is carried out through an analysis of a business model of a knowledge-intensive INV providing business services by designing a single case, considering the effectuation logic in the process of decision making. The principal findings of this investigation demonstrate the influence of the external institutional factors on the development of the INV in the knowledge-intensive business services context, especially in their relational network. Furthermore, it proves that human capital of their founders and managers plays an important role, given that in this kind of ventures the knowledge is a determinant source for the generation of competitive advantages. And finally, the analysis of the business model of an international new venture in terms of the interdependence between decisions and consequences reveals that the logic of the effectuation as well as causation are complementary in the decision-making process. In general, the following thesis presents both theoretical and practical implications. From the theoretical point of view, it contributes to the formation of new knowledge in this emerging research field, and also provides advancement of theories and approaches used within this particular context. The achieved results may be of a valuable utility for policy-makers as well as business environment, given it provides sufficient evidence, especially for knowledge-intensive business services, to be considered as a segment of the economy which should take a lead in the development of countries in the international arena.

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Pires, Luis Paulo Gon?alves. "Alta disponibilidade: uma abordagem com DNS e Proxy Reverso em Multi-Cloud." Pontif?cia Universidade Cat?lica de Campinas, 2016. http://tede.bibliotecadigital.puc-campinas.edu.br:8080/jspui/handle/tede/904.

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Submitted by SBI Biblioteca Digital (sbi.bibliotecadigital@puc-campinas.edu.br) on 2017-02-01T13:15:39Z No. of bitstreams: 1 LUIS PAULO GONCALVES PIRES.pdf: 3166033 bytes, checksum: 043d546bf3a8212c07798369bfcc2f7f (MD5)
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Pontif?cia Universidade Cat?lica de Campinas ? PUC Campinas
While there is considerable enthusiasm for the migration of on-premise data centers to cloud computing services, there is still some concern about the availability of these same services. This is due, for example, to historical incidents such as that in 2011, when a crash on Amazon's servers caused sites of several of its customers to go down for almost 36 hours. In view of this, it becomes necessary to develop strategies to guarantee the availability offered by the providers. In the present work, a solution is proposed, which implements high availability in Multi-Cloud environments, through the distribution of DNS access and the use of reverse proxy. A financial analysis was also carried out, taking into account market values in Cloud Computing services, which showed that the proposed solution may even be advantageous with respect to the traditional one. Specifically, a Multi-Cloud system, consisting of two Clouds with 99.90% availability each, provides total availability of 99.999%, and it costs 34% less than a single Cloud with 99.95% availability. The simulation results, obtained in a virtualized environment, using two Clouds, with availability of 99.49% and 99.43%, showed a system availability of 99.9971%. In this way, using Multi-Cloud systems it is possible to obtain high availability systems, from lower availability Clouds, according to user?s needs, besides saving with provider services costs.
A despeito de haver consider?vel entusiasmo quanto ? migra??o de data-centers on-primese para servi?os de Cloud Computing, ainda existe certo receio no que se refere ? disponibilidade destes mesmos servi?os. Isso se deve, por exemplo, a incidentes hist?ricos como o ocorrido em 2011, quando uma falha nos servidores da Amazon fez com que sites de v?rios de seus clientes ficassem fora do ar por quase 36 horas. Em vista disso, torna-se necess?rio desenvolver estrat?gias para garantir a disponibilidade oferecida pelos provedores. No presente trabalho, descreve-se uma solu??o que implementa alta disponibilidade em ambientes Multi-Cloud, mediante a distribui??o de acesso por DNS e a utiliza??o de proxy reverso. Realizou-se tamb?m uma an?lise financeira, levando-se em conta valores de mercado em servi?os de Cloud Computing, o que mostrou que a solu??o proposta pode ser mesmo vantajosa com a rela??o ? solu??o tradicional. Especificamente, um sistema Multi-Cloud, composto por duas Clouds com disponibilidade de 99,90%, que prov? disponibilidade total de 99,999%, custa 34% menos do que uma ?nica Cloud com disponibilidade de 99,95%. Os resultados de simula??o, obtidos em ambiente virtualizado, utilizando-se duas Clouds, com disponibilidades de 99,49% e 99,43%, alcan?aram disponibilidade 99,9971%. Desta forma, utilizando-se sistemas Multi-Cloud ? poss?vel se obter sistemas de alta disponibilidade, de acordo necessidade do usu?rio, a partir de Clouds de mais baixa disponibilidade, al?m de ser poss?vel economizar com os custos dos servi?os do provedor.

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Frini, Marouane. "Diagnostic des engrenages à base des indicateurs géométriques des signaux électriques triphasés." Thesis, Lyon, 2018. http://www.theses.fr/2018LYSES052.

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Bien qu’ils soient largement utilisés dans le domaine, les mesures vibratoires classiques présentent plusieurs limites. A la base, l’analyse vibratoire ne peut identifier qu’environ 60% des défauts qui peuvent survenir dans les machines. Cependant, les principaux inconvénients des mesures de la vibration sont l’accès difficile au système de transmission afin d’y placer le capteur ainsi que le coût conséquent de la mise en œuvre. Ceci résulte en des problèmes de sensibilité relatifs à la position de l’installation et ceux de difficulté pour distinguer la source de vibration à cause de la diversité des excitations mécaniques qui existent dans l’environnement industriel.Par conséquent, l’analyse des signatures du courant électrique des moteurs s’impose comme une alternative prometteuse à l’analyse vibratoire et a donc fait l’objet d’une attention grandissante au cours des dernières années. En effet, l’analyse des signatures électriques a l’avantage d’être une méthode techniquement accessible, non-intrusive au système et peu coûteuse. Les techniques basées sur le courant et la tension ne requièrent que les mesures électriques du moteur qui sont souvent déjà surveillées pour le contrôle et la protection des machines électriques. Ce processus a été principalement utilisé pour la détection des défauts de moteur tels que la rupture de barres du rotor et les défauts d’excentricité ainsi que les défauts de roulements. En revanche, très peu de recherches concernent la détection des défauts en utilisant l’analyse du courant. En outre, les signaux électriques triphasés sont caractérisés par des représentations géométriques particulières liées à leur forme d’onde qui peuvent servir en tant qu’indicateurs différents offrant des informations supplémentaires. Parmi ces indicateurs géométriques, les transformées de Park et de Concordia modélisent les composantes électriques dans un repère bidimensionnel et toute déviation par rapport à la représentation d’origine indique l’apparition d’un dysfonctionnement. Aussi, les équations différentielles de Frenet-Serret représentent la trajectoire du signal dans un espace euclidien tridimensionnel et indiquent ainsi tout changement dans l’état du système. Bien qu’ils aient été utilisés pour les défauts de roulements, ces indicateurs n’ont pas été appliqués dans la détection des défauts d’engrenages en utilisant l’analyse des signatures des courants électriques. D’où l’idée novatrice de combiner ces indicateurs avec des techniques de traitement de signal, ainsi que des techniques de classification pour le diagnostic des engrenages en utilisant l’analyse des signatures de courant et de tension du moteur électrique.Ainsi, dans ce travail, on propose une nouvelle approche pour le diagnostic des défauts d’engrenages en utilisant l’analyse des courants et des tensions électriques du stator de la machine et ceci en se basant sur un ensemble d’indicateurs géométriques (Transformées de Park et de Concordia ainsi que les propriétés du repère Frenet-Serret). Ces indicateurs font partie d’une bibliothèque de signatures de défauts qui a été construite et qui comprend également les indicateurs classiques utilisés pour un large éventail de défauts. Ainsi, un algorithme combine les acquisitions expérimentales des signaux électriques à des méthodes de traitement de signal avancées (décomposition modale empirique,…). Ensuite, celui-ci sélectionne les indicateurs les plus pertinents au sein de la bibliothèque en se basant sur les algorithmes de sélection de paramètres (sélection séquentielle rétrograde et analyse des composantes principales). Enfin, cette sélection est utilisée pour la classification non-supervisée (K-moyennes) pour la distinction entre l’état sain et l’état défaillant
Although they are widely used, classical vibration measurements have several limitations. Vibration analysis can only identify about 60% of the defects that may occur in mechanical systems. However, the main drawbacks of vibration measurements are the difficult access to the transmission system in order to place the sensor as well as the consequent cost of implementation. This results in sensitivity problems relative to the position of the installation and the difficulty to distinguish the source of vibration because of the diversity of mechanical excitations that exist in the industrial environment.Hence, the Motor Current Signatures Analysis (M.C.S.A.) represents a promising alternative to the vibration analysis and has therefore been the subject of increasing attention in recent years. Indeed, the analysis of electrical signatures has the advantage of being a technically accessible method as well as inexpensive and non-intrusive to the system. Techniques based on currents and voltages only require the motor’s electrical measurements which are often already supervised for the purposes of the control and the protection of the electrical machines. This process was mainly used for the detection of motors faults such as rotor bars breakage and eccentricity faults as well as bearings defects. On the other hand, very little research has been focused on gear faults detection using the current analysis. In addition, three-phase electrical signals are characterized by specific geometric representations related to their waveforms and they can serve as different indicators providing additional information. Among these geometric indicators, the Park and Concordia transforms model the electrical components in a two-dimensional coordinate system and any deviation from the original representation indicates the apparition of a malfunction. Moreover, the differential equations of Frenet-Serret represent the trajectory of the signal in a three-dimensional euclidean space and thus indicate any changes in the state of the system. Although they have been previously used for bearing defects, these indicators have not been applied in the detection of gear defects using the analysis of electrical current signatures. Hence, the innovative idea of combining these indicators with signal processing techniques, as well as classification techniques for gears diagnosis using the three-phase motor’s electrical current signatures analysis is established.Hence, in this work, a new approach is proposed for gear faults diagnosis using the motor currents analysis, based on a set of geometric indicators (Park and Concordia transforms as well as the properties of the Frenet-Serret frame). These indicators are part of a specifically built fault signatures library and which also includes the classical indicators used for a wide range of faults. Thus, a proposed estimation algorithm combines experimental measurements of electrical signals with advanced signal processing methods (Empirical Mode Decomposition, ...). Next, it selects the most relevant indicators within the library based on feature selection algorithms (Sequential Backward Selection and Principal Component Analysis). Finally, this selection is combined with non-supervised classification (K-means) for the distinction between the healthy state and faulty states. It was finally validated with a an additional experimental configuration in different cases with gear faults, bearing faults and combined faults with various load levels

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Wang, Szu-Yen, and 王思雁. "A CDA-Conformed Operation Notes Implementation Platform Based on Service-Oriented Architecture." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/3v8fp8.

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碩士
靜宜大學
資訊管理學系研究所
97
It is a surgeon’s responsibility and routine job to write an operation notes to describe important operational details after completing an operation. Conventional operation notes are written in narrative and are hardly to be analyzed for medical researches. It will take tremendous manpower to computerize miscellaneous operation notes for every surgery departments one by one. It may also take a surgery department a lot of waiting time to revise some electronic operation notes owing to the backlog of the computer department. Obviously, no standard is followed and difficulty exists in exchanging theses documents. In this study, a web-based operation notes implementation platform based on Service-Oriented Architecture will be proposed and implemented. The system will provide three major functions, named template designer, content editor, and notes generator. Using the template designer, a surgery department may set up the structured template of an operation note simply by choosing the needed system services which are equivalent to data modules of the operation note, and requires attributes of each service which are stemmed from HL7 CDA R2 standards. Invoking the content editor, a physician may enter structured contents of an operation note after selecting the appropriate template. The entered structured contents will be stored in a clinical database for subsequent analysis. The notes generator is used to generate, review and print a formal operation note after its contents are completely entered. The SOA-based operation notes implementation platform will greatly reduce the cost of individually developing and maintaining systems of miscellaneous operation notes for each surgery department. Meanwhile, the released operation notes, which are conformed to HL7 CDA standard, are most suitable for exchanging among hospitals.

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Isman-Brümmer, Hande. "Neuorganisation von Unternehmensstrukturen im Zuge von verstärkt dezentralisierten Arbeitsvorgängen : unter besonderer Berücksichtigung des Personalwesens in einem Großunternehmen /." 1996. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=008002838&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.

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Chen, Yi-Hung, and 陳奕宏. "Design Data Mining Module for Lotus Notes - Using Web Services Technique." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/n73k95.

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碩士
國立虎尾科技大學
資訊管理研究所
98
Today, many business implement information systems to assist processing. With internet communication technology has become popular as well as providing communication and work procedure for each department in different time. The information system has been recorded much valuable business information with time. We can use data mining and analysis to find the helpful information for business. In Taiwan, most of business applied Lotus Domino/Notes to be a platform for intranet communication. Because of the advantages of Lotus Domino/Notes, such as flexible develop, perfect communication, and security. Lotus Domino/Notes is welcome of business to build a collaboration platform. This thesis has presented a data mining modules (decision tree and associate rules) using JAVA. The modules are integrated in Lotus Domino/Notes through web services. Then the Object Linking and Embedding (OLE) is used to further present a graphical result on Lotus Domino/Notes. This thesis is subject to implement data mining modules rapidly in existing Lotus Domino/Notes system of business, and adds the ability of data analysis.

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Lefebvre, Geoffrey. "Early-demultiplexing techniques for quality of service in serving GPRS support nodes." Thesis, 2002. http://hdl.handle.net/2429/12128.

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The General Packet Radio Service(GPRS) is a wireless data service that sits on top of the existing GSM infrastructure. It provides access to the Internet and packet based billing. It is often referred as a 2.5G system and is designed to evolve to UMTS(3G). The Serving GPRS Support Node(SGSN) is one of two new nodes added to the GSM infrastructure to support GPRS. Its role is to route data to users in its geographical area and provide user mobility, access control and security. We have studied a SGSN from a system point of view, looking at how it interacts with the operating system. We have found that a SGSN implemented as a user level process will not be able to properly support Quality of Service(QoS). We have looked at three QoS parameters: throughput, delay and precedence and have found that a SGSN will not be able to maintain guaranteed services based on those parameters when heavily loaded. This behavior is due to the fact that operating systems are unaware of the QoS requirements of incoming traffic and are therefore unable to properly queue incoming packets. We have designed and built a SGSN where the incoming traffic flow is demultiplexed on arrival. The QoS requirements of incoming packets are identified before they are queued. Packets can now be classified and queued properly. Our results show that our Early Demultiplexing SGSN(ED-SGSN) provides large improvements. The ED-SGSN is able to maintain service guarantees in terms of throughput, delay and precedence even under serious loads.

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Lan, Chien-Yuan, and 藍堅元. "The Dispositions of Service Nodes for Taiwanese Air Freight Forwarder in Mainland China." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/97419858567700007223.

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碩士
長榮大學
航運管理研究所
95
Recently, Taiwanese air freight forwarders have developed their service nodes in Mainland China to cope with the movement of Taiwanese factories. However, how to dispose service nodes, including marketing nodes and operation nodes, more efficiently is a big issue Taiwanese air freight forwarders facing due to the large scale of Mainland China. This paper makes use of regression analysis to analyze the correlation between the distribution of marketing nodes and that of Taiwanese factories. Furthermore, a mathematical model, the facility location problem, is developed to help air freight forwarders to upgrade some marketing nodes as operation nodes to enhance their internal operation network to move cargoes more efficiently. The case study shows that the distribution of marketing nodes and that of Taiwanese factories is significantly correlated by the regression analysis, and some of marketing nodes should be upgraded to operation nodes when there are more cargoes increased or higher level of service needed with the mathematical model.

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Shadpour, Borzoo. "Broke service : a self-organized approach to servicing broke nodes in ad-hoc networks." 2004. http://link.library.utoronto.ca/eir/EIRdetail.cfm?Resources__ID=95043&T=F.

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Rajogpalan, Santosh. "Ensuring quality of service in ad-hoc wireless networks using the concept of active nodes." Thesis, 2002. http://hdl.handle.net/1957/30318.

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The problem of ensuring Quality of Service (QoS) on a TCP/IP based fixed-infrastructure network has been well studied and several working proposals exist. An allied problem is that of ensuring QoS on an ad-hoc wireless network, where the requirements are similar, but the operating conditions are different enough to warrant this problem to be dealt with separately and extensively. The QoS reservation and management schemes which work on a fixed infrastructure network perform poorly in ad-hoc wireless networks, mainly because of the difficulty in reserving bandwidth on a contention-based medium, and problems which arise from the possible motion of the hosts and the variability of the quality of the connection. This thesis is a proposal to use the concept of active nodes to set up and maintain QoS. Active nodes are nodes which can execute code on behalf on other remote applications. An algorithm for using active nodes to set up and maintain QoS parameters is proposed, and the use of buffer reservation schemes in reserving bandwidth is explained. The proposal is implemented on the network simulator NS-2, and we study the uses and limitations of this proposal, with specific reference to the performance under different operating conditions.
Graduation date: 2003

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33

Lee, Yi-Ting, and 李宜亭. "FORECASTING MODELS FOR SERVICE REQUIREMENTS OF NETWORK NODES, USING MRU, AR-PST, SMA AND WMA." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/62226966365004465748.

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碩士
大同大學
通訊工程研究所
97
Number of incoming or outgoing packets of a normally operated and regularly visited Internet server is usually a periodical time series. This pattern is also observed in this experiment. Obviously, the amount of users decides the required availability of an Internet server. The Availability is actually a function of number of nodes in a clustered Internet server. In other words, the amount of users of an Internet server decides the least required number of nodes in a clustered system. This thesis is to find an optimal number of required nodes according to the predicted requests. The result is also affects the required power consumption of cooling system of this clustered system. Four different prediction models have been implemented and evaluated in this thesis. These four models are MRU (Most Recently Used) algorithm, AR-PST (Autoregressive Prediction Suffix Tree) algorithm, SMA (Simple Moving Average) and WMA (Weighted Moving Average). SMA, WMA and MRU gave a lower error rate in their forecasts. SMA and WMA are designed for predicting the amount of a certain type. On the other hand, MRU and AR-PST are able to predict the occurring order of observing elements. SMA, WMA and MRU are able to reach 90% and even higher accurate rate, while after an appropriate parameter adjustment, accurate rate of AR-PST can be improved from 60% to 90%.

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Huang, Baoqi. "Localization and its performance in wireless sensor networks." Phd thesis, 2012. http://hdl.handle.net/1885/150816.

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Wireless sensor networks (WSNs) have been considered as a promising tool for many location dependent applications including area surveillance, search and rescue, mobile tracking and navigation, and so on. The geographic location information of nodes is requested by most applications of WSNs, and is also critical for improving the management of WSNs, such as topology control, packet routing, security, etc. Therefore, sensor localization, which is the process of identifying the locations of sensor nodes in a wireless sensor network (WSN), plays an important role in all those systems. Inspired by physical models and performance measures commonly adopted in the literature, this work studies sensor localization with emphasis on its performance, which is a challenging problem due to the extremely limited resources available at each low-cost sensor node and complicated mechanisms for achieving sensor localization in WSNs. Based on the Cramer-Rao lower bound (CRLB), the first part of this work analyzes from a novel perspective the performance of single-hop sensor localization, where each sensor node directly measures distances or angles from anchor nodes at known locations to locate itself. That is, differently from the existing work, a random node geometry is considered by assuming that anchor locations are random variables, and the distribution, mean and standard deviation of a resulting random metric for the localization performance are then carefully investigated. Such an analysis provides a statistical view on the localization performance and assists to comprehensively understand sensor localization. In multi-hop sensor localization, by contrast, not every sensor node is capable of directly measuring a sufficient number of distances from anchor nodes to locate itself, so that both localization and relevant performance analyses become enormously complicated. Therein, a crucial problem arises, viz. error propagation, which is still not well understood. The second patt of this work deals with the performance of range-based multi-hop sensor localization in one-dimensional WSNs based on a CRLB analysis, and analytically obtains the fundamental behavior of the localization performance and properties of error propagation. Flowing from this, the third part of this work focuses on the error propagation problem in the two-dimensional case, and identifies the relationship among the localization error statistics of a sensor node, the hop count from this sensor node to anchor nodes, the sensor density and the variance of distance measurement errors, which is greatly helpful for effectively designing and deploying WSNs. The final part of this work proposes a connectivity-based distance estimation method which helps to substantially improve the quality of connectivity-based sensor localization in static dense WSNs. This method employs a maximumlikelihood estimator (MLE) to estimate the distance between two adjacent nodes from their local connectivity information, namely the numbers of their common and non-common immediate neighbors. In addition, the performance of this method is thoroughly examined and its advantages are confirmed by testing it based on measurement data from a real environment as well as applying it in connectivity-based sensor localization.

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Tsai, Shiou-Jing, and 蔡銹靜. "A Study on the Characteristics of Self-service, Customer Value and Continuance Intention：An Empirical Study of the Website Platform Badminton Note." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/sq49pa.

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碩士
亞洲大學
休閒與遊憩管理學系碩士在職專班
104
The purpose of this thesis is primarily to explore the characteristics of self-service, the relevance of customer value and their willingness of continuing using by applying the website platform Badminton Note. The target population of this research was the disabled who attend the Rating Program held by t the website platform Badminton Note in 2015. Data were collected through surveys and the study sample comprised 400 respondents. After the eliminations, our sample consists of 368 with good responding rate (92%). This research analyzed and tested by SPSS22.0 statistical software, and obtained the following conclusions: First, there is a significant impact influence on the customer ease of perception and the customer value on the website platform Badminton Note. Second, there is a significant impact influence on the customer perceived usefulness and the customer value on the website platform Badminton Note. Third, there is a significant impact influence on the customer cost down and the customer value on the website platform Badminton Note. Fourth, there is a significant impact influence on the customer value and on the website platform Badminton Note. Fifth, there is a significant impact influence on the customer’s ease of perception and value on the website platform Badminton Note. Finally, it recommended that a comprehensive discussion according to the results, and the future research direction for Project executor.

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Morales, Loayza Sandra Carmela. "Calidad de las notas de enfermería en la Unidad de Cuidados Intensivos - Hospital Regional Moquegua año 2011." Thesis, 2013. http://tesis.unjbg.edu.pe:8080/handle/unjbg/147.

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El presente estudio intitulado “Calidad de las Notas de Enfermería en la Unidad de Cuidados Intensivos - Hospital Regional Moquegua I semestre año 2011” de tipo cuantitativo, prospectivo, de corte transversal; su objetivo fue determinar la calidad de las notas de enfermería en la unidad de cuidados intensivos de los profesionales de enfermería hospitalaria. La población estuvo conformada por 64 historias clínicas correspondientes al I semestre, se aplicó una Lista de cotejo, a través de observación directa y evaluación. El análisis y procesamiento de los datos se hizo en el software SPSS versión 20, estadística descriptiva, se realizó pruebas de confiabilidad utilizando el alfa de Cronbach y coeficiente de correlación. Se llegó a las conclusiones: Las notas de enfermería presentan un porcentaje significativo de regular calidad con un 54,7%. El 79,7% tienen una regular calidad en cuanto a su dimensión estructura y el 96,9% de las notas de enfermería estudiadas tienen mala calidad en cuanto a su dimensión contenido (PAE).

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TSAI, MING-JUI, and 蔡明叡. "Explorative Research of the Relationship between Service Failure on Customer’s perceived Equality, trust and Purchase Intention: The Case of the SAMSUNG Note 7." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/23s9gr.

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碩士
正修科技大學
經營管理研究所
105
The purpose of this study is to explore the trust effect among the perceived equity and repurchase intention of service failure after compensating remedy for Samsung Note7 battery explosion event. 200 effect questionnaires was conducted and further 3 interview were followed to explore the remedy initiatives influence on relationship among trust, perceived equity and repurchase intention. The result shows remedy initiatives will compensate the perceived fairness, and further positively significantly influence trust for SAMSUNG brand and repurchase intention.

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Li, Jian. "Immunological parameters and small tumor deposits in sentinel and non-sentinel lymph nodes of breast cancer patients /." 2005. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=014952975&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.

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39

Sengpiehl, Carsten. "Towards the development of a holistic planning framework for a Logistics City-Cluster: a multinational modified Delphi study." Thesis, 2010. https://vuir.vu.edu.au/16357/.

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Macroeconomic competition between regions and countries has intensified dramatically in recent years, and as a result, selection of a favourable location and organisation of a logistics node plays an important role in determining a region’s ability to participate in emergent globalisation opportunities. Global connectivity of an area and its related industries, together with their ability to retain and further develop a ‘competitive advantage’, requires a significant review of the way in which a region interfaces with the rest of the world. The Logistics City-Cluster concept, which is one of the latest manifestations of a logistics node, is believed to be a suitable strategy to address these changes. However, whilst the Logistics City-Cluster is accepted by industry as a viable and unique concept, the nature of composition, characteristics and impact is still fragmented and very limited. The continued growth of this new strategy has made it imperative to develop a coherent knowledge base, ensuring future orderly development. Hence, this research was twofold: first, it sought to contribute to the theoretical knowledge of the common enabling elements of a Logistics City-Cluster and of their core influential factors; and secondly to explore the underlying assumptions that sustainable regional growth can be provided by such a concept.

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Dissertations / Theses on the topic 'Notes de service'

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