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Dissertations / Theses on the topic 'Access technologies'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Qazi, Hasham Ud Din. "Comparative Study of Network Access Control Technologies." Thesis, Linköping University, Department of Computer and Information Science, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-8971.

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<p>This thesis presents a comparative study of four Network Access Control (NAC) technologies; Trusted Network Connect by the Trusted Computing group, Juniper Networks, Inc.’s Unified Access Control, Microsoft Corp.’s Network Access Protection, and Cisco Systems Inc.’s Network Admission Control. NAC is a vision, which utilizes existing solutions and new technologies to provide assurance that any device connecting to a network policy domain is authenticated and is subject to the network’s policy enforcement. Non-compliant devices are isolated until they have been brought back to a complaint sta

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2

Shahpari, Ali. "Next generation optical access networks : technologies and economics." Doctoral thesis, Universidade de Aveiro, 2015. http://hdl.handle.net/10773/14857.

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Doutoramento em Engenharia Eletrotécnica - Telecomunicações<br>The work presented herein, studies Next Generation Optical Access Networks (NG-OAN) economically (e.g. energy consumption) and technologically (e.g. rate, reach and dedicated/shared bandwidth). The work is divided into four main topics: energy efficiency in optical access architectures, novel spectrally efficient Long-Reach Passive Optical Networks (LR-PON), crosstalk impacts in heterogeneous and homogenous access networks and hybrid optical wireless transmissions. We investigate the impact of user profiles, optical distribution n

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3

Chen, Alex Qiang. "Automatic Web widgets prediction for Web 2.0 access technologies." Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/automatic-web-widgets-prediction-for-web-20-access-technologies(24e7a9d5-7e03-4fe3-a65e-4f4930a4f5c1).html.

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The World Wide Web (Web) has evolved from a collection of static pages that need reloading every time the content changes, into dynamic pages where parts of the page updates independently, without reloading it. As such, users are required to work with dynamic pages with components that react to events either from human interaction or machine automation. Often elderly and visually impaired users are the most disadvantaged when dealing with this form of interaction. Operating widgets require the user to have the conceptual design knowledge of the widget to complete the task. Users must have prio

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Haacker, Markus. "Economic growth in development : health, demographics, and access to technologies." Thesis, London School of Economics and Political Science (University of London), 2008. http://etheses.lse.ac.uk/2178/.

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The first substantive chapter (II) addresses the macroeconomic impact of HIV/AIDS, with reference to sub-Saharan Africa. The framework is designed to capture some interactions between the formal and the informal sector, and - reflecting open capital markets of many economies affected by HIV/AIDS - to address the implications of capital mobility. Additionally, our study is the first academic study of the growth impact of scaling up antiretroviral treatment. Allowing for capital mobility, our analysis returns a stronger impact of HIV/AIDS on output and income per capita than the corresponding cl

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Jamalipour, Abbas, Tadahiro Wada, Takaya Yamazato, and 敬也山里. "A Tutorial on Multiple Access Technologies for Beyond 3G Mobile Networks." IEEE, 2005. http://hdl.handle.net/2237/6614.

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6

Iqbal, M. "Access to assisted human reproductive technologies in the light of Islamic ethics." Thesis, University College London (University of London), 2013. http://discovery.ucl.ac.uk/1399055/.

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The purpose of this thesis is to evaluate the hypothesis that infertile Muslim couples living in secular societies or otherwise are unduly restricted in their approach in making use of the facilities now available through modern human reproductive technologies. This is mainly because of the unbending and categorical fixation of the early interpretations of Islamic allegorical verses of the Qur’an by Islamic jurists who remain steadfast in refusing to contemplate the present advanced nature of the changing world. To date, this unilaterally uncompromising attitude of Islamic jurists has not allo

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7

Novak, David C. "A Methodology for Characterization and Performance Analysis of Connection-Based Network Access Technologies." Diss., Virginia Tech, 2001. http://hdl.handle.net/10919/27236.

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Network administration has become more difficult as the number of Internet users has grown and customer usage patterns have changed over time. Rapidly increasing subscriber bases, data intensive applications (such as streaming audio and video), heavy Web browsing, and large file downloads require significant resources and may tax existing network bandwidth. Reliability and quality of service are becoming serious issues for service providers across the country. Due to the dynamic nature of the information technology (IT) sector in general, it is difficult to predict future network usage pattern

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8

Ashley, Paul. "Security technologies for intranet computing." Thesis, Queensland University of Technology, 1999.

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9

Ureche, Oana. "Static code analysis of data-driven applications through common lingua and the Semantic Web technologies." Thesis, Federation University Australia, 2015. http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/81548.

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Web applications have become increasingly popular due to their potential for businesses' high revenue gain through global reach. Along with these opportunities, also come challenges in terms of Web application security. The increased rise in the number of datadriven applications has also seen an increased rise in their systematic attacks. Cyberattacks exploit Web application vulnerabilities. Attack trends show a major increase in Web application vulnerabilities caused by improper implementation of information-flow control methods and they account for more than 50% of all Web application vulner

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10

Bulut, Mehmet Börühan. "Achieving Universal Access to Electricity through Decentralized Renewable Energy Technologies in Minas Gerais, Brazil." Thesis, KTH, Energi och klimatstudier, ECS, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-91944.

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Brazil started the Luz Para Todos (Light for all - LPT) program in 2003 aiming at universalization of electricity access in the country. The program uses three technological solutions to reach this goal: grid extension, decentralized power generation with isolated grids and stand-alone systems. This master thesis analyzes the role of decentralized renewable energy technologies in the Luz Para Todos program in the state of Minas Gerais. The factors that lead to the use of such technologies in the specific case of CEMIG (Energy Company of Minas Gerais) are considered. The study showed that regul

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11

Han, Wei. "Multi-core architectures with coarse-grained dynamically reconfigurable processors for broadband wireless access technologies." Thesis, University of Edinburgh, 2010. http://hdl.handle.net/1842/3812.

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Broadband Wireless Access technologies have significant market potential, especially the WiMAX protocol which can deliver data rates of tens of Mbps. Strong demand for high performance WiMAX solutions is forcing designers to seek help from multi-core processors that offer competitive advantages in terms of all performance metrics, such as speed, power and area. Through the provision of a degree of flexibility similar to that of a DSP and performance and power consumption advantages approaching that of an ASIC, coarse-grained dynamically reconfigurable processors are proving to be strong candid

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12

Ge, Feng. "Software Radio-Based Decentralized Dynamic Spectrum Access Networks: A Prototype Design and Enabling Technologies." Diss., Virginia Tech, 2009. http://hdl.handle.net/10919/29981.

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Dynamic spectrum access (DSA) wireless networks focus on using RF spectrum more efficiently and dynamically. Significant progress has been made during the past few years. For example, many measurements of current spectrum utilization are available. Theoretical analyses and computational simulations of DSA networks also abound. In sharp contrast, few network systems, particularly those with a decentralized structure, have been built even at a small scale to investigate the performance, behavior, and dynamics of DSA networks under different scenarios. This dissertation provides the theory, desig

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Wolfeld, Bruce R. 1963. "A case study in the deployment of digital access technologies : DSL vs. cable modems." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/9447.

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Thesis (S.M.M.O.T.)--Massachusetts Institute of Technology, Sloan School of Management, Management of Technology Program, 1999.<br>Includes bibliographical references.<br>From its start in the early 1900's, the communications business has been a regulated industry with little or no competition. The economic incentives to deploy new technological innovations were often overshadowed by the regulatory environment and a lack of competitive pressures. The 1982 divestiture of AT&T successfully created competition in the long distance market, however the local access market continued to operate as re

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Braun, Patrice. ".comUnity : A study on the adoption and diffusion of internet technologies in a regional tourism network." Thesis, University of Ballarat, 2003. http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/43051.

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This thesis describes the initiation and evolution of an action research project, which investigates the adoption and diffusion of Internet technologies in a regional Australian tourism network. The research evolved out of a portal development consultancy. The aim of the study was two-fold: to investigate the nature of the change process when a collaborative network seeks to adopt e-commerce; and to determine how the change process differed in the face of incremental change (adding some e-commerce solutions to the network), or radical change (changing the overall business model). The purpose o

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Grošelj, Darja. "Keeping up with technologies : revisiting the meaning and role of Internet access in digital inclusion." Thesis, University of Oxford, 2015. http://ora.ox.ac.uk/objects/uuid:5f5b5b31-2428-4723-b649-b3e8efd7356f.

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The ways people go online have been transformed by the emergence of new mobile Internet technologies. As modes of Internet access are becoming increasingly diverse, this thesis sets out to examine how various forms of access shape engagement with online resources. Inequalities in Internet access have been neglected in the "second-level digital divide" research, which has focused on differences in skills and usage. Thus, I argue that inequalities of access have to be revisited and their role in digital inclusion reassessed. To study individuals' arrangements of Internet-enabled devices and loca

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Caires, Bruno José de Sales Caires. "Transparent access to relational, autonomous and distributed databases using semantic web and service oriented technologies." Master's thesis, Universidade da Madeira, 2007. http://hdl.handle.net/10400.13/128.

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With the constant grow of enterprises and the need to share information across departments and business areas becomes more critical, companies are turning to integration to provide a method for interconnecting heterogeneous, distributed and autonomous systems. Whether the sales application needs to interface with the inventory application, the procurement application connect to an auction site, it seems that any application can be made better by integrating it with other applications. Integration between applications can face several troublesome due the fact that applications may not have

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Pareek, Kuldeep. "A STUDY OF A MULTI BAND ANTENNA’S PERFORMANCE FOR DIFFERENT FREQUENCIES AND RADIO ACCESS TECHNOLOGIES." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-204914.

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There has been and will be a constant development in the field of communication systems and telecommunication in the form of network designs, access technologies, and equipment. Today, most of the mobile users are in indoors environments such as buildings, metros, arenas etc. These users are becoming impossible to serve from outdoor base station antenna because of energy-effective building techniques, which have RF shielding properties. A solution to this is to move antenna closer to the users in the indoor environment. There is a need to find a cost effective and economical and environmental

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Bremner, Duncan James. "25 years of network access technologies : from voice to internet : the changing face of telecommunications." Thesis, University of Glasgow, 2015. http://theses.gla.ac.uk/6670/.

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This work contributes to knowledge in the field of semiconductor system architectures, circuit design and implementation, and communications protocols. The work starts by describing the challenges of interfacing legacy analogue subscriber loops to an electronic circuit contained within the Central Office (Telephone Exchange) building. It then moves on to describe the globalisation of the telecom network, the demand for software programmable devices to enable system customisation cost effectively, and the creation of circuit and system blocks to realise this. The work culminates in the applicat

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Braun, Patrice. ".comUnity : a study on the adoption and diffusion of internet technologies in a regional tourism network." University of Ballarat, 2003. http://archimedes.ballarat.edu.au:8080/vital/access/HandleResolver/1959.17/15657.

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This thesis describes the initiation and evolution of an action research project, which investigates the adoption and diffusion of Internet technologies in a regional Australian tourism network. The research evolved out of a portal development consultancy. The aim of the study was two-fold: to investigate the nature of the change process when a collaborative network seeks to adopt e-commerce; and to determine how the change process differed in the face of incremental change (adding some e-commerce solutions to the network), or radical change (changing the overall business model). The purpose o

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Tran, Thao, and Nathalie Tkauc. "Face recognition and speech recognition for access control." Thesis, Högskolan i Halmstad, Akademin för informationsteknologi, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-39776.

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This project is a collaboration with the company JayWay in Halmstad. In order to enter theoffice today, a tag-key is needed for the employees and a doorbell for the guests. If someonerings the doorbell, someone on the inside has to open the door manually which is consideredas a disturbance during work time. The purpose with the project is to minimize thedisturbances in the office. The goal with the project is to develop a system that uses facerecognition and speech-to-text to control the lock system for the entrance door. The components used for the project are two Raspberry Pi’s, a 7 inch LCD

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Ntetha, Mduduzi Aubrey. "The access, interaction, use and impact of information And communication technologies among civil servants In the Umhlathuze area: a social informatics study." Thesis, University of Zululand, 2010. http://hdl.handle.net/10530/551.

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A dissertation submitted in partial fulfilment of the Degree of Master of Library and Information Science (MLIS) in the Department of Library and Information Science at the University of Zululand, South Africa, 2010.<br>Social Informatics is the field of study concentrating on the social aspects of Information and Communication Technologies (ICT) utilisation with researchers in the field concentrating on aspects such as human interaction with ICTs, the effect of certain hardware and software on utilisation and the impact that the use of ICTs have on the daily lives of people in society

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22

Risner, Isabelle. "The integration of digital technologies into designer-maker practice : a study of access, attitudes and implications." Thesis, University of the Arts London, 2013. http://ualresearchonline.arts.ac.uk/8760/.

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This research is a focused investigation of the use of digital production technologies by UK designer-makers. The Critical and Contextual Review begins by examining what is known about the UK designer-maker sector. It considers how making practices relate to history and theories of craft, exploring meanings of key concepts such as ‘skill’ and ‘productive autonomy’. It reviews contemporary digital craft practice, identifying it as a genre and examines both digital economy and digital tool-use trends, relating to craft. The methodology Chapter 3 explains how the pragmatic philosophical approach

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Fagan, Dominique. "Using ICTs as a pedagogical resource to facilitate epistemological access in science with teacher education students." Thesis, UWC, 2020. http://hdl.handle.net/11394/7376.

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Philosophiae Doctor - PhD<br>The study aimed to investigate the kind of knowledge privileged when student teachers use Information Communication Technologies in facilitating learning in science subjects. The assumptions were that future student teachers, through their pedagogic practices, may either reproduce or interrupt educational inequalities. The ability to interrupt inequalities is conditioned by the manner in which these student teachers have been inducted into the field of teacher education and this process includes the ability to manipulate technological resources to facilitate episte

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Govindaraj, Rekha. "Emerging Non-Volatile Memory Technologies for Computing and Security." Scholar Commons, 2018. https://scholarcommons.usf.edu/etd/7674.

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With CMOS technology scaling reaching its limitations rigorous research of alternate and competent technologies is paramount to push the boundaries of computing. Spintronic and resistive memories have proven to be effective alternatives in terms of area, power and performance to CMOS because of their non-volatility, ability for logic computing and easy integration with CMOS. However, deeper investigations to understand their physical phenomenon and improve their properties such as writability, stability, reliability, endurance, uniformity with minimal device-device variations is necessary for

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Hellman, David. "Managing the Expectations of Voice-Controlled Access Solutions." Thesis, Umeå universitet, Institutionen för tillämpad fysik och elektronik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-161430.

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Voice is the primary tool of communication to a majority of people on earth. Humans are wired to process speech, meaning voice interaction require little cognitive effort. Advancements in voice technology over the last 20 years have seen an increased prevalence of voice-controlled applications. However, false expectations can potentially cause severe interaction deficiencies to many of these voice user interfaces. One of the many application areas being connected to voice is access solutions such as smart locks. With a fundamental value proposition of keeping people and their belongings safe a

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Li, Mingzhe. "Designing High-Performance Remote Memory Access for MPI and PGAS Models with Modern Networking Technologies on Heterogeneous Clusters." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1512070491037985.

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Sporrong, Klara. "Optimizing Accessibility in Music Streaming Services : Research on how to provide access to music for the visually impaired." Thesis, Umeå universitet, Institutionen för tillämpad fysik och elektronik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-136019.

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Accessibility is important in the development of digital products as well as in physical products. An accessible product enables all people to use it, whether they have a disability or not. This thesis focuses on accessibility for visually impaired people in a music streaming service on desktop. Many music streaming services for desktop are built with web technologies, including Spotify. The aim of this thesis was to evaluate the accessibility status of the Spo- tify desktop application as well as develop accessibility guidelines fo- cused on a music streaming service. A user test was performe

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Pielli, Chiara. "Channel Access in Wireless Networks: Protocol Design of Energy-Aware Schemes for the IoT and Analysis of Existing Technologies." Doctoral thesis, Università degli studi di Padova, 2018. http://hdl.handle.net/11577/3427305.

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The design of channel access policies has been an object of study since the deployment of the first wireless networks, as the Medium Access Control (MAC) layer is responsible for coordinating transmissions to a shared channel and plays a key role in the network performance. While the original target was the system throughput, over the years the focus switched to communication latency, Quality of Service (QoS) guarantees, energy consumption, spectrum efficiency, and any combination of such goals. The basic mechanisms to use a shared channel, such as ALOHA, TDMA- and FDMA-based policies, have b

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Hayman, Sarah. "Evaluation of Hand Augered Well Technologies' Capacity to Improve Access to Water in Coastal Ng[oumlaut]be Communities in Panama." Scholar Commons, 2014. https://scholarcommons.usf.edu/etd/5036.

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Amid the global efforts surrounding United Nations' Millennium Development Goal Target 7c to improve access to safe and sustainable drinking water among populations who lack this resource, it has become essential to monitor and evaluate progress. Development initiatives working to achieve improved drinking water access often introduce appropriate technologies designed to be sustainably owned and operated by populations in rural areas suffering from water related hardships. It is valuable to thoroughly examine the degree to which these technologies satisfy intended objectives and affect user ex

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Gerino, A. "MOBILE ASSISTIVE TECHNOLOGIES FOR PEOPLE WITH VISUAL IMPAIRMENT: SENSING AND CONVEYING INFORMATION TO SUPPORT ORIENTATION, MOBILITY AND ACCESS TO IMAGES." Doctoral thesis, Università degli Studi di Milano, 2017. http://hdl.handle.net/2434/476683.

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Smartphones are accessible to persons with visual impairment or blindness (VIB): screen reader technologies, integrated with mobile operating systems, enable non-visual interaction with the device. Also, features like GPS receivers, inertial sensors and cameras enable the development of Mobile Assistive Technologies (MATs) to support people with VIB. A preliminary analysis, conducted adopting an user-centric approach, highlighted some issues experienced by people with VIB in everyday activities from three main fields: orientation, mobility and access to images. Traditional approaches to addre

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Jovanovic, Natalija. "Bascules et registres non-volatiles à base de ReRAM en technologies CMOS avancées." Electronic Thesis or Diss., Paris, ENST, 2016. http://www.theses.fr/2016ENST0023.

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Les mémoires et l'éléments séquentiels non-volatiles peuvent améliorer l'efficacité énergétique des appareils à piles en éliminant la consommation statique tout en maintenant l'état du système.Parmi les nouvelles technologies NVM intégrées, ReRAMs se distinguent par un temps de programmation rapide, une structure simple, compatible avec la technologie CMOS et très bien scalable. Les flip-flops non-volatiles (NVFF) basées sur ReRAM ont été implémentées dans des nœuds CMOS de 90nm ou plus et souffrent de problèmes de fiabilité dans les nœuds plus petits, en raison de hautes tensions de programma

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Gandiwa, Tapiwa. "The use of information and communication technologies for accessing HIV and AIDS information by healthcare professionals in Zimbabwe." University of Western Cape, 2021. http://hdl.handle.net/11394/8487.

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Philosophiae Doctor - PhD<br>This study sought to investigate the information needs of selected HIV and AIDS health organisations in Zimbabwe with a view to proposing a framework for developing an information access platform. ICTs can play a pivotal role in improving access to HIV and AIDS information and in coordinating HIV and AIDS activities in Zimbabwe. However, the development of ICTs in Zimbabwe’s health sector has been haphazard and idiosyncratic to a plethora of HIV and AIDS organisations operating in Zimbabwe. This study proposes a framework for the development of ICTs for accessing H

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Joshi, Mukta Gajanan. "Access to credit by hawkers what is missing? Theory and evidence from India /." Connect to resource, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1127223640.

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Thesis (Ph. D.)--Ohio State University, 2005.<br>Title from first page of PDF file. Document formatted into pages; contains xii, 196 p.; also includes graphics (some col.). Includes bibliographical references (p. 188-196). Available online via OhioLINK's ETD Center

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Garro, Crevillén Eduardo. "Advanced Layered Divsion Multiplexing Technologies for Next-Gen Broadcast." Doctoral thesis, Universitat Politècnica de València, 2018. http://hdl.handle.net/10251/105559.

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Desde comienzos del siglo XXI, los sistemas de radiodifusión terrestre han sido culpados de un uso ineficiente del espectro asignado. Para aumentar la eficiencia espectral, los organismos de estandarización de TV digital comenzaron a desarrollar la evolución técnica de los sistemas de TDT de primera generación. Entre otros, uno de los objetivos principales de los sistemas de TDT de próxima generación (DVB-T2 y ATSC 3.0) es proporcionar simultáneamente servicios de TV a dispositivos móviles y fijos. El principal inconveniente de esta entrega simultánea son los diferentes requisitos de cada cond

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Horikawa, Tsuyoshi. "A study of advanced integrated semiconductor device and process technologies for data storage and transmission." 京都大学 (Kyoto University), 2016. http://hdl.handle.net/2433/215222.

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Aborawi, Ahmed. "L'usage des technologies de l'information et de la communication par les professeurs des universités lybiennes : le cas des archives ouvertes et des périodiques électroniques sur le web." Thesis, Université Grenoble Alpes (ComUE), 2016. http://www.theses.fr/2016GREAL018.

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Cette étude analyse l'accueil et l'usage par les professeurs des universités libyennes des périodiques électroniques et des archives ouvertes. Ainsi, elle a pour objectif d'identifier la relation entre, d’un côté, l’usage des périodiques électroniques et des archives ouvertes et, de l’autre, certains facteurs déterminants des conditions sociodémographiques comme le sexe, le domaine de recherche, l’âge et les années d’exercice.Cela se situe dans un contexte particulier à un pays arabe, pays en voie de développement dont l’environnement sociopolitique constitue, à notre sens, une véritable contr

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Mushtaq, Rizwan. "Essays on access to finance, financial literacy and development." Thesis, Paris 1, 2017. http://www.theses.fr/2017PA01E049/document.

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L’objectif de cette thèse est d’examiner à la fois les dimensions de l’offre et de la demande relatives à l’inclusion financière. Cette recherche présente un ensemble complet de preuves empiriques concernant l’accès aux services financiers, aux niveaux macro et micro-économiques. Le troisième chapitre fournit une exploration de cette hypothèse essentielle. En utilisant des données structurelles par pays, il montre les effets de l’inclusion financière sur la réduction de la pauvreté et des inégalités. En outre, il montre les effets bénéfiques des nouvelles technologies sur l’extension de l’incl

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Egede, Hephzibah. "The social stigmatisation of involuntary childless women in Sub-Saharan Africa : the gender empowerment and justice case for cheaper access to assisted reproductive technologies?" Thesis, Cardiff University, 2015. http://orca.cf.ac.uk/91231/.

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This thesis considers the social stigmatisation of involuntary childlessness in Sub-Saharan Africa. It explores the socio-legal issues that arise when involuntary childlessness is given a gendered meaning and how this contributes to the social stigmatisation of involuntarily childless women in this developing region. The social stigmatisation of involuntarily childless women in Sub-Saharan Africa has been widely documented in the social science literature. This body of literature on the gendered meaning of infertility and its impact on involuntary childless women has helped to change attitudes

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Rashid, Ahmed Tareq. "Inclusive Capitalism and Bottom of the Pyramid Approaches to Development: The Case of Information and Communication Technologies Fostering 'Inclusion' in Developing Countries." Thesis, Université d'Ottawa / University of Ottawa, 2017. http://hdl.handle.net/10393/36599.

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With the increasingly salient role of business in development, the bottom of the pyramid (BOP) approach is sparking great interest in multinational corporations, donor agencies, and academic circles. The BOP proposition holds that profit-generating enterprise-based ventures – typically led by multinational corporations – can reduce poverty and improve the standard of living by offering goods and services to the poor or integrating them in the value chain. BOP as a development strategy is predicated on the “inclusion” of the poor into market to enable them to reap the benefits of greater wealt

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Mokhfi, Atika. "Étude d'un dispositif d'enseignement à distance en libre accès sur le web : une approche didactique du travail enseignant dans le supérieur : le cas du dispositif Thermoptim-UNIT à l’école MINES ParisTech." Thesis, Aix-Marseille, 2016. http://www.theses.fr/2016AIXM3005.

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La thèse porte aussi bien sur les portails de ressources en accès libre sur le Web et l’introduction des technologies en éducation. Elle s’appuie sur une approche anthropologique du didactique qui s’intéresse à la diffusion des connaissances dans la société et qui offre un cadre de référence à l’analyse du fonctionnement de systèmes didactiques instrumentés par les technologies. Notre étude porte sur le dispositif Thermoptim-UNIT et son portail de ressources pédagogiques numériques diffusées en libre accès sur le Web. Pour étudier les effets de l’introduction de ce dispositif dans l’enseigneme

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Henry, Jean-Baptiste. "Contribution à l'étude expérimentale des résistances d'accès dans les transistors de dimensions deca-nanométrique des technologies CMOS FD-SOI." Thesis, Université Grenoble Alpes (ComUE), 2018. http://www.theses.fr/2018GREAT039/document.

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La réduction des dimensions des transistors à effet de champ MOS a depuis quelques années ralenti à cause de l'émergence de facteurs parasites tels que la résistance d'accès. En effet, la miniaturisation du canal s'est accompagnée par une diminution de sa résistance tandis que celle des zones d'accès à la frontière avec le canal est restée constante ou a augmenté. L'objectif de cette thèse a été de mettre en place une méthodologie de caractérisation électrique prenant en compte cette composante parasite longtemps considérée négligeable dans le milieu industriel.Dans un premier chapitre, le fon

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Pujari, Swarna. "A framework to develop an interactive web database for delivery of water resources field data over the internet." [Tampa, Fla.] : University of South Florida, 2005. http://purl.fcla.edu/fcla/etd/SFE0001272.

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Booth, Benjamin Keith Willoughby. "An investigation of museum data storage and access technologies including case studies on archaeological records at the National Maritime Museum and visitor information at the Science Museum." Thesis, University College London (University of London), 1996. http://discovery.ucl.ac.uk/1317527/.

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This dissertation investigates the technology for storage and access to data in museums, focusing on requirements for collections management and the information needs of visitors. The various components of museum information systems, including data structures and terminology, recording media, computer software and hardware, manual systems, and management procedures are comprehensively examined through case studies at the National Maritime and Science Museums. The first case study describes and assesses manual and computer based techniques developed for the storage and retrieval of records in t

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Bachar, Idriss Saleh. "Approches d'évaluation de l'accès universel et stratégies d’optimisation : Application au cas de l' Afrique centrale." Thesis, Limoges, 2016. http://www.theses.fr/2016LIMO0098/document.

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Cette thèse aborde de façon systémique l’analyse de la situation des TICs en Afrique Centrale, elle identifie les problématiques liées à l’accès universel et étudie les politiques d’harmonisation des TICs. Cette analyse conduit alors à proposer une cartographie cible intégrée permettant de réduire la fracture numérique. Non seulement les différentes technologies optiques et radio large bande sont mises à contribution mais décrites en vue de relater les notions de base permettant d’appréhender les avantages et inconvénients de chaque technologie. Ceci a permis par la suite de proposer une démar

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Zelinková, Vlasta. "Optické kabeláže - srovnání." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2012. http://www.nusl.cz/ntk/nusl-219481.

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The thesis is focused on an analysis of mounting and cable laying fiber optic lines. The first chapter includes an analysis is made comparing parameters fiber and copper cabling, mainly in terms of access networks. This part specifies the various transmission media and access networks that are operated on them. Attention is focused on the transmission rate and its possible impact, provided the capacity and other important values. This section also demands site maintenance, service, or any failure on the routes of these networks. With this goal in the second chapter was created several designs

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Ankarali, Zekeriyya Esat. "Physical Layer Algorithms for Reliability and Spectral Efficiency in Wireless Communications." Scholar Commons, 2017. http://scholarcommons.usf.edu/etd/6996.

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Support of many different services, approximately 1000x increase of current data rates, ultra-reliability, low latency and energy/cost efficiency are among the demands from upcoming 5G standard. In order to meet them, researchers investigate various potential technologies involving different network layers and discuss their trade-offs for possible 5G scenarios. Waveform design is a critical part of these efforts and various alternatives have been heavily discussed over the last few years. Besides that, wireless technology is expected to be deployed in many critical appl

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Simon, Gaël. "Introduction des technologies de multiplexage en longueur d'onde dense dans les futures générations de réseaux d'accès optique." Electronic Thesis or Diss., Paris, ENST, 2016. http://www.theses.fr/2016ENST0076.

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Initialement poussées par le marché résidentiel, les évolutions du réseau d’accès optique sont aujourd’hui également stimulées par l’expansion du réseau mobile. Comme le montre le premier chapitre de ce document, l’introduction d’un multiplexage en longueur d’onde dense constitue l’une des solutions privilégiées pour permettre la montée en débit dans les réseaux d’accès optique. Dans cette thèse, l’impact de l’introduction du multiplexage en longueur d’onde dense est étudié sous trois axes :• Une prochaine étape de l’évolution des technologies pour les réseaux d’accès passerait par une hybrida

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Teles, Fernando Henrique Almeida. "WIMAX: perspectiva de mudança nas tecnologias de acesso." Master's thesis, Instituto Superior de Economia e Gestão, 2007. http://hdl.handle.net/10400.5/2313.

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Mestrado em Gestão de Sistemas de Informação<br>O aparecimento de uma inovação tecnológica, para os operadores de redes de telecomunicações, não é novidade. Mas, quando essa tecnologia representa uma ameaça ao negócio tradicional dos operadores incumbentes ou de outros bem estabelecidos no mercado, deve procurar estabelecer-se uma perspectiva objectiva dessa mesma tecnologia. O objectivo deste trabalho é estudar a tecnologia WiMAX, enquanto alternativa às tecnologias tradicionais da rede de acesso. Nesse sentido, serão utilizadas diversas metodologias que irão permitir a comparação do WiMAX co

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Aldrovandi, Andrea. "O acesso às tecnologias reprodutivas: garantias e limites jurídicos." reponame:Repositório Institucional da UCS, 2006. https://repositorio.ucs.br/handle/11338/150.

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O presente estudo trata das garantias e limites jurídicos ao acesso às técnicas de reprodução humana assistida no Brasil. As tecnologias reprodutivas podem ser utilizadas em benefício do indivíduo que pretende gerar um filho, com o objetivo de prevenção de doenças e para realizar o projeto parental, constituindo método disponível para o planejamento da vida reprodutiva. Diante disso, o seu acesso encontra guarida no direito à saúde, e nos direitos sexuais e reprodutivos, que foram inseridos em nosso ordenamento por meio da previsão constitucional do direito ao planejamento familiar, reconhecen

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Simon, Gaël. "Introduction des technologies de multiplexage en longueur d'onde dense dans les futures générations de réseaux d'accès optique." Thesis, Paris, ENST, 2016. http://www.theses.fr/2016ENST0076/document.

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Abstract:

Initialement poussées par le marché résidentiel, les évolutions du réseau d’accès optique sont aujourd’hui également stimulées par l’expansion du réseau mobile. Comme le montre le premier chapitre de ce document, l’introduction d’un multiplexage en longueur d’onde dense constitue l’une des solutions privilégiées pour permettre la montée en débit dans les réseaux d’accès optique. Dans cette thèse, l’impact de l’introduction du multiplexage en longueur d’onde dense est étudié sous trois axes :• Une prochaine étape de l’évolution des technologies pour les réseaux d’accès passerait par une hybrida

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