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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

System Information Distribution in Massive MIMO Systems

Sörman, Simon January 2016 (has links)
The 5th generation mobile telecommunication system (5G) is currently being specified and developed, with large expectations on throughput and efficiency. While 4G and more specifically LTE might constitute a basis of the design of the network, there are some parts that should be improved. One thing to improve is the static signalling that occurs very frequently in a 4G network, of which system information such as synchronization signals, detection of network frequencies, operators, configurations etc. is a part. It has been shown that the static signalling requires both much energy and time-frequency resources. Since the system information is not intended for a single user it is always broadcast so that any user, and any amount of users can read it when needed. 5G will use a technique called massive MIMO, where the base station is equipped with a large number of antennas which can be used to direct signals in space, called beamforming. This thesis presents a new method for distribution of system information that can utilize the beamforming capabilities of massive MIMO. A simple model together with simulated user channel statistics from urban 4G scenarios are used to show that the new method outperforms the classical method of only broadcasting the information, with respect to time-frequency resources. Especially if there are high requirements on the latency of the system information, the new method results in a large gain.
2

Informační strategie firmy / Corporate Information Strategy

Bolehradská, Dunja January 2012 (has links)
This thesis offers an information strategy for a small-sized webdesign business. It examines the current state of its IS/IT, whilst evaluating its benefits in business procedures and processes. This thesis envisages an IT strategy that will significantly support increase in competitiveness on the market and accomplishment of the business goals of this firm. This strategy introduces various elements of the future information system and emphasises the importance of the choice of the right solutions. The essential part of master’s thesis are also theoretical resources.
3

Information quality assessment in e-learning systems

Alkhattabi, Mona Awad January 2010 (has links)
E-learning systems provide a promising solution as an information exchanging channel. Improved technology could mean faster and easier access to information but does not necessarily ensure the quality of this information. Therefore it is essential to develop valid and reliable methods of quality measurement and carry out careful information quality evaluations. Information quality frameworks are developed to measure the quality of information systems, generally from the designers' viewpoint. The recent proliferation of e-services, and e-learning particularly, raises the need for a new quality framework in the context of e-learning systems. The main contribution of this thesis is to propose a new information quality framework, with 14 information quality attributes grouped in three quality dimensions: intrinsic, contextual representation and accessibility. We report results based on original questionnaire data and factor analysis. Moreover, we validate the proposed framework using an empirical approach. We report our validation results on the basis of data collected from an original questionnaire and structural equation modeling (SEM) analysis, confirmatory factor analysis (CFA) in particular. However, it is difficult to measure information quality in an e-learning context because the concept of information quality is complex and it is expected that the measurements will be multidimensional in nature. Reliable measures need to be obtained in a systematic way, whilst considering the purpose of the measurement. Therefore, we start by adopting a Goal Question Metrics (GQM) approach to develop a set of quality metrics for the identified quality attributes within the proposed framework. We then define an assessment model and measurement scheme, based on a multi element analysis technique. The obtained results can be considered to be promising and positive, and revealed that the framework and assessment scheme could give good predictions for information quality within e-learning context. This research generates novel contributions as it proposes a solution to the problems raised from the absence of consensus regarding evaluation standards and methods for measuring information quality within an e-learning context. Also, it anticipates the feasibility of taking advantage of web mining techniques to automate the retrieval process of the information required for quality measurement. This assessment model is useful to e-learning systems designers, providers and users as it gives a comprehensive indication of the quality of information in such systems, and also facilitates the evaluation, allows comparisons and analysis of information quality.
4

CSSE document management system implementation and usability evaluation /

Wang, Chao, Gilbert, Juan E. January 2006 (has links) (PDF)
Thesis(M.S.)--Auburn University, 2006. / Abstract. Vita. Includes bibliographic references (p.70-72).
5

Avaliação de impactos de vizinhança gerados por supermercados em Ilha Solteira /

Fioroni, Márcio de Mattos. January 2011 (has links)
Orientador: José Augusto de Lollo / Banca: Dib Gebara / Banca: Waldir José Gaspar / Resumo: O Estudo de Impactos de Vizinhança pretende relatar, como o próprio nome diz, os impactos causados na vizinhança gerados por determinada mudança ocorrida nesta, geralmente a instalação de uma determinada empresa ou empreendimento. Com a criação da Lei 10.257/2001 (Brasil, 2001), estabeleceram-se diretrizes oficiais para tratarem deste problema, indicando quais empreendimentos e quais impactos deveriam ser analisados. Até este período não existia nenhum padrão definido para este estudo, ficando a cargo dos poderes municipais estabelecerem tais critérios. Esta dissertação propõe uma sistemática de trabalho para ser usada em estudos de impactos de vizinhança gerados por supermercados, usando Sistema de Informação Geográfica (SIG) como ferramenta de trabalho para apresentação de resultados, facilitando sua observação, análise e tomada de decisões. Outro objetivo é saber qual o tipo de influencia que o porte do empreendimento e da cidade exercem sobre estes impactos. Os resultados mostraram que o Sistema de Informações Geográficas (SIG) é uma ótima ferramenta para o armazenamento, o tratamento e a recuperação de dados de forma ágil e segura, assegurando uma ótima visualização espacial das informações colhidas no campo / Abstract: The study of impacts of Neighborhood want to report, as the name implies, the impacts caused in the neighbourhood are generated by this particular change occurred, usually the installation of a particular enterprise or venture. With the creation of law 10,257/2001 (Brazil, 2001), official guidelines were established to deal with this problem, indicating which endeavors and what impact should be analyzed. Until this period there was no default set for this study, getting the position of municipal powers to establish such criteria. This thesis proposes a systematic work to be used in studies of neighbourhood impacts generated by supermarkets, using geographic information system (GIS) as a working tool for presentation of results, facilitating your observation, analysis and decision-making. Another goal is to know what kind of influences that the size of the enterprise and the city are about these impacts. The results showed that the geographic information system (GIS) is a great tool for the storage, treatment and recovery of data in an agile and secure, ensuring a great spatial visualization of information collected in the field / Mestre
6

Gestão patrimonial: um estudo sobre o controle de material permanente na Universidade Federal do Maranhão / Asset management: a study on the control of permanent material at the Federal University of Maranhão

Figueredo, Francisco Carlos Marques 15 April 2015 (has links)
This study focuses on the financial management of movable property in the Center of Biological and Health Sciences (CCBS) of the Federal University of Maranhão (UFMA), according to Torres Junior (2003) the wealth management is to plan, organize, control, ensure, conserve and promote the best use of permanent materials available in the organization. This research aims to examine the criteria adopted in the processes of acquisition and disposal of permanent materials. Therefore, we discussed knowledge of the asset management regulations applied to heritage resources, information technology in public administration and sustainable logistics plan. This knowledge is grounded in the views of authors such as Davemport (1994), Moresi (2000), Francischini and Gurgel (2002), Cross (2003), Coutinho (2004), Silva, Ribeiro and Rodrigues (2004), Martins et AL (2007 ), Oliveira (2007), Pozo (2007), Bobsin and Lobler (2008), Carvalho Filho (2008), Gomes and Tortato (2010), Santos (2012), Meirelles (2012), Vinhais, Manso and Silva (2012) , Meza and Fijor (2013), among others. This case study is descriptive, exploratory and qualitative. Two questionnaires were applied to servers with the academic departments of the CCBS and Registration Division Asset respectively, and proceeded the analysis of existing documentation in the archives of the institution on the financial management which enabled the collection of data that were subsequently analyzed. The results show that the studied unit has been unable to efficiently manage its property, not given the precepts both the current legislation, as the organs of internal and external control. In one of the goals are some proposals for improvements, such as preparation of a manual of procedures based on current legislation, promote seminars on asset management. / O presente estudo trata sobre a gestão patrimonial de bens móveis no Centro de Ciências Biológicas e da Saúde (CCBS) da Universidade Federal do Maranhão (UFMA), segundo Torres Junior (2003) a administração patrimonial consiste em planejar, organizar, controlar, zelar, conservar e promover a melhor utilização dos materiais permanentes disponíveis na organização. A presente pesquisa tem como objetivo principal analisar os critérios adotados nos processos de aquisição e de descarte de materiais permanentes. Para tanto foram discutidos conhecimentos sobre a gestão patrimonial, legislação aplicada aos recursos patrimoniais, a tecnologia de informação na administração pública e o plano de logística sustentável. Esses conhecimentos estão alicerçados nas visões de autores como Davemport (1994), Moresi (2000), Francischini e Gurgel (2002), Cruz (2003), Coutinho (2004), Silva, Ribeiro e Rodrigues (2004), Martins et AL (2007), Oliveira (2007), Pozo (2007), Bobsin e Lobler (2008), Carvalho Filho (2008), Gomes e Tortato (2010), Santos (2012), Meirelles (2012), Vinhais, Manso e Silva (2012), Meza e Fijor (2013), dentre outros. Este estudo de caso é descritivo, exploratório e de natureza qualitativa. Foram aplicados dois questionários junto aos servidores dos departamentos acadêmicos do CCBS e da Divisão de Registro Patrimonial, respectivamente, e procedida a análise da documentação existente nos arquivos da instituição sobre a gestão patrimonial, que possibilitou a coleta de dados que posteriormente foram analisados. Os resultados revelam que a unidade pesquisada não vem conseguindo gerenciar de forma eficiente seus bens móveis, não atendendo ao que preceitua tanto a legislação vigente, quanto os órgãos de controle interno e externo. Em um dos objetivos são apresentadas algumas propostas de melhorias, tais como, elaboração de um manual de procedimentos baseado na legislação vigente, promover seminários sobre a gestão patrimonial.
7

Avaliação de impactos de vizinhança gerados por supermercados em Ilha Solteira

Fioroni, Márcio de Mattos [UNESP] 25 February 2011 (has links) (PDF)
Made available in DSpace on 2014-06-11T19:29:13Z (GMT). No. of bitstreams: 0 Previous issue date: 2011-02-25Bitstream added on 2014-06-13T18:58:45Z : No. of bitstreams: 1 fioroni_mm_me_ilha.pdf: 846438 bytes, checksum: 2a50f00fc9e3d2ae2c1a7776b98f20f8 (MD5) / O Estudo de Impactos de Vizinhança pretende relatar, como o próprio nome diz, os impactos causados na vizinhança gerados por determinada mudança ocorrida nesta, geralmente a instalação de uma determinada empresa ou empreendimento. Com a criação da Lei 10.257/2001 (Brasil, 2001), estabeleceram-se diretrizes oficiais para tratarem deste problema, indicando quais empreendimentos e quais impactos deveriam ser analisados. Até este período não existia nenhum padrão definido para este estudo, ficando a cargo dos poderes municipais estabelecerem tais critérios. Esta dissertação propõe uma sistemática de trabalho para ser usada em estudos de impactos de vizinhança gerados por supermercados, usando Sistema de Informação Geográfica (SIG) como ferramenta de trabalho para apresentação de resultados, facilitando sua observação, análise e tomada de decisões. Outro objetivo é saber qual o tipo de influencia que o porte do empreendimento e da cidade exercem sobre estes impactos. Os resultados mostraram que o Sistema de Informações Geográficas (SIG) é uma ótima ferramenta para o armazenamento, o tratamento e a recuperação de dados de forma ágil e segura, assegurando uma ótima visualização espacial das informações colhidas no campo / The study of impacts of Neighborhood want to report, as the name implies, the impacts caused in the neighbourhood are generated by this particular change occurred, usually the installation of a particular enterprise or venture. With the creation of law 10,257/2001 (Brazil, 2001), official guidelines were established to deal with this problem, indicating which endeavors and what impact should be analyzed. Until this period there was no default set for this study, getting the position of municipal powers to establish such criteria. This thesis proposes a systematic work to be used in studies of neighbourhood impacts generated by supermarkets, using geographic information system (GIS) as a working tool for presentation of results, facilitating your observation, analysis and decision-making. Another goal is to know what kind of influences that the size of the enterprise and the city are about these impacts. The results showed that the geographic information system (GIS) is a great tool for the storage, treatment and recovery of data in an agile and secure, ensuring a great spatial visualization of information collected in the field
8

Využitie informačného systému v personálnej agentúre / Use and analysis of information system in personnel agency

Šutáková, Lucia January 2010 (has links)
The information system is an important tool for optimizing and simplifying many operations and business processes, saving time and also money. Development of information technology is in constant activity, and is therefore not always easy to implement on time all the innovation. The number of pitfalls in the implementation and requirements grow with the development of IS / ICT market. This thesis aims to analyze the information system and the satisfaction of its users in the selected personnel agency through a survey and proposal for solving the deficiencies, which respondents have identified.
9

Posouzení informačního systému firmy a návrh změn / Information System Assessment and Proposal of ICT Modification

Kašpárek, David January 2018 (has links)
The Master's thesis is aimed at the analysis of the information system of VOŠ a SPŠ Žďár nad Sázavou and improvement proposal in the sphere of communication. The focus is on the processes related to the e-mail communication management and communication in general, be it outside or inside the organization. The thesis contains communication means proposal which should help to define appropriate IT support for the processes related to communication. Means of information security are mentioned on a basic level, risk assessment is included as well.
10

Posouzení informačního systému firmy a návrh změn / Information System Efectiveness Assessment and Proposal for ICT Modification

Zelenák, Tomáš January 2019 (has links)
The diploma thesis focuses on the assessment of the information system in the selected company. It analyzes the current state of the company and its equipment. Thesis includes proposals to minimize or eliminate identified deficiences and increase the level of work with information system, security and processes in company.

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