Dortmund, University, Diss., 2002 (Nicht für den Austausch).

Thesis (M.S.)--Rochester Institute of Technology, 1992. / Includes bibliographical references (leaf 53).

Zugl.: Rostock, Univ., Diss., 2009

With characteristics such as small size, low weight and low power consumption, Bluetooth wireless technology provides efficient communication ability for pocket size devices, for which power consumption is critical. Built-in security features may serve as substitute for application level security. Bluetooth Service Discovery Protocol (SDP) provides information of availability and characteristics of services in the RF proximity. In this work, a VNC service is set up for Bluetooth wireless network and performance tests are made. A VNC server provides virtual consoles for VNC clients across different platforms. VNC has little computing power requirement on client side, fitting the profiles of most Bluetooth devices. Access can be limited to a particular window and its children windows; the function of the particular window can be advertised with SDP. The use of VNC is extended from a remote console only to a "platform" for services in general.

Thesis (M.S.)--Rochester Institute of Technology, 1990. / Typescript. Includes bibliographical references.

This study investigates classroom graffiti by U.S. college students. The data analyzed were collected in nine classrooms randomly selected from two buildings at a major land grant university. In all, 1,758 examples of identifiable pieces of graffiti were collected and analyzed from 419 desktops. Using data supplied by the University Registrar, the types of students who attended classes in these classrooms by major, gender, and class composition are correlated with the quantity and quality of desktop graffiti found. These graffiti are analyzed in order to gauge what some of the pressing issues are for students, and are useful in informing the university of what issues are most important to those students who engage in this activity. The findings suggest a strong interest in four main areas: sex, the University, drugs, and Greek organizations. One pattern that stands out is the large amount of sexual graffiti an anti-homosexual nature. A larger amount of graffiti appears in the liberal arts building compared to the engineering building. Student major and gender, as well as professor's gender, do not appear to be correlated with either amount or content of the graffiti studied. Instead, it is suggested that the course being taught and the room in which the class is held may be more strongly correlated with the amount and content of the graffiti found on classroom desktops. Notable in its absence is virtually any student graffiti of a racist nature. / Master of Science

This initial, descriptive study addressed the primary research question "What is a profile of desktop publishing use in Indiana Corporations with 250 or more employees?" The problem that led to the study was the lack of information on the topic, and as an aid to business people in evaluating the advantages and disadvantages of desktop publishing. The information compiled from the random telephone survey was intended to help put into perspective what systems and software were appropriate for certain public relations projects.A random telephone survey of 240 Indiana corporations was conducted in March 1988.The data gathered showed that only 31 of the 240 corporations contacted (13 percent) were using desktop publishing. Several conclusions could be drawn. There was a lack of understanding of the capabilities of desktop publishing among many of those contacted as well as a lack of money to purchase a system and time to train a user. The quality of output capability in desktop publishing at the time of the study was lower than most respondents wanted.A profile of the 31 corporations (13 percent) using desktop publishing would typify them as manufacturing companies who have used desktop publishing one year or less and have an average publications budget of $120,949. They are using desktop publishing to produce newsletters primarily. They did not have a knowledge of desktop publishing before purchasing the system, but would recommend its use to others. They cite increased control and time savings as the biggest benefits of owning and using desktop publishing, with an average time savings of 30%. They typically use the Macintosh computer with Pagemaker and Microsoft Word software. The manager using the system has been in his position five years or less (83.9%) and has an average age of 34. The maximum age among these managers was 47 years old.A profile of the non-users would read as follows: Of the 240 Indiana corporations with 250 or more employees surveyed, 152 (63.3 percent) did not use desktop publishing. The average publications budget at these companies was $103,058. Most of the non-users were manufacturing corporations. Their managers in charge of publications had been in their position five years or less (66.4%). The average age for those managers was 40, with the maximum being 64 years old. While the publication they produced most was the newsletter, they cited the following reasons for not using desktop publishing: saw no cost benefits for their publications and did not think the output quality was high enough. / Department of Journalism

Thesis (PhD)-Open University. BLDSC no.DX186512.

No description available.

Made available in DSpace on 2016-06-02T19:06:15Z (GMT). No. of bitstreams: 1 6233.pdf: 2978713 bytes, checksum: bacd196ac56a6f20318345d645546b83 (MD5) Previous issue date: 2014-02-25 / A server cluster connected to the Internet can support virtual desktops in a virtual computing environment. Each user can have his/her own virtual desktop, accessed through the Internet by means of devices such as laptop, PC, notebook, tablet or smartphone. The benefits of desktop virtualization include the possibility of improving utilization of computational resources such as processor, memory, disk and network; a more efficient management; centralized backup, and remote accessibility independently on the user location. Education institutions have traditionally used local desktops for use of faculty, administrative and technical staffs, as well as for their students. Managing these desktops requires a technical staff to take care of installation, configuration, updating and maintaining in a personalized manner, according to each user profile. In this manner, administration is costly and inefficient. Several companies increasingly adopted virtual desktops delivered by an infrastructure of centralized servers, while education institutions are late in this process. The diversity of applications used by different areas of teaching create demand for studies to better understand the performance of virtual desktop infrastructure. The purpose of this study is to evaluate virtual desktop infrastructure from the perspective of user quality of experience. To accomplish this, a virtual desktop infrastructure have been deployed at UFSCAR, and a set of experiments were carried out at our labs employing five different applications. To evaluate the influence of the networking quality of service on the user experience, we produced 5 scenarios with different communication latencies. Finally, we also executed experiments to evaluate the demand for computational resources (e.g., processor, memory, I/O, and network) as more virtual desktops are spawned. This experiment can provide important information for future capacity planning. / Um conjunto de servidores conectados à Internet pode prover desktops virtuais em um ambiente virtual de computação. Cada usuário pode ter seu próprio desktop virtual, acessando através da Internet por meio de dispositivos como um computador comum ou dispositivos moveis, como um notebook, tablet ou celular. Dentre os benefícios da virtualização de desktops, incluem-se a melhoria na utilização dos recursos de computacionais como processador, memória, disco e rede, a redução de custos para a administração dos recurso (que passa a atuar de forma centralizada e mais eficiente), backup centralizado e possibilidade de acesso remoto, onde quer que o usuário esteja. Muitas empresas já vem adotando o uso de desktops virtuais no ambiente de trabalho dos seus funcionários e colaboradores. Entre¬tanto, as instituições de ensino tradicionalmente utilizam desktops locais, tanto para uso do corpo docente, corpo administrativo e técnico, como também para os seus alunos. Como o tema e bem pouco explorado no ambiente de universidades e instituições de ensino superior, o presente trabalho tem como objetivo principal responder algumas questões sobre a utilização de desktops virtuais. O que se pode esperar em termos da qualidade de experiência dos usuários de desktops virtuais em função de sua execução remota? Quais aplicações típicas apresentam maior ou menor degradação em termos de qualidade de experiência a medida que alguns parâmetros da rede (como por exemplo a latência) se degradam? Qual e o consumo de recursos (processador, memória, E/S e rede) para a execução de desktops virtuais? Como principais contribuições, este trabalho apresenta uma avaliação experimental de uma infraestrutura de desktops virtuais implementada na Secretaria de Informática da UFSCar. Foram realizados experimentos para avaliar a qualidade de experiência do usuário com um conjunto de cinco aplicações típicas de um laboratório de ensino da universidade. Foram testados seis níveis de qualidade de serviço da rede para medir o seu impacto na qualidade de experiência dos usuários. Também foram feitos testes variando-se a quantidade de desktops virtuais executando simultaneamente para verificar o consumo de recursos, que servirá de base para um futuro planejamento de capacidade.