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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.
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Showing 891 to 900 of 936 (0.02 seconds)| 891 |
OpenBSD Hardware Sensors — Environmental Monitoring and Fan ControlMurenin, Constantine Aleksandrovich 18 May 2010 (has links)
This thesis discusses the motivation, origin, history, design guidelines, API, the device drivers and userland utilities of the hardware sensors framework available in OpenBSD. The framework spans multiple utilities in the base system and the ports tree, is utilised by over 75 drivers, and is considered to be a distinctive and ready-to-use feature that sets OpenBSD apart from many other operating systems, and in its root is inseparable from the OpenBSD experience.
The present framework, however, is missing the functionality that would allow the user to interface with the fan-controlling part of the hardware monitors. We therefore discuss the topic of fan control and introduce sysctl-based interfacing with the fan-controlling capabilities of microprocessor system hardware monitors. The discussed prototype implementation reduces the noise and power-consumption characteristics in fans of personal computers, especially of those PCs that are designed from off-the-shelf components. We further argue that our prototype is easier, more intuitive and robust compared to solutions available elsewhere.
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| 892 |
WORKSHOP "MOBILITÄT"Anders, Jörg 12 June 2001 (has links)
Gemeinsamer Workshop von Universitaetsrechenzentrum und Professur "Rechnernetze und verteilte Systeme" der Fakultaet fuer Informatik der TU Chemnitz.
Workshop-Thema: Mobilitaet
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| 893 |
Three essays on industrial organizationTran, Du Vinh 28 August 2008 (has links)
Not available / text
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| 894 |
Three essays on industrial organizationTran, Du Vinh, 1977- 18 August 2011 (has links)
Not available / text
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| 895 |
OpenBSD Hardware Sensors — Environmental Monitoring and Fan ControlMurenin, Constantine Aleksandrovich 18 May 2010 (has links)
This thesis discusses the motivation, origin, history, design guidelines, API, the device drivers and userland utilities of the hardware sensors framework available in OpenBSD. The framework spans multiple utilities in the base system and the ports tree, is utilised by over 75 drivers, and is considered to be a distinctive and ready-to-use feature that sets OpenBSD apart from many other operating systems, and in its root is inseparable from the OpenBSD experience.
The present framework, however, is missing the functionality that would allow the user to interface with the fan-controlling part of the hardware monitors. We therefore discuss the topic of fan control and introduce sysctl-based interfacing with the fan-controlling capabilities of microprocessor system hardware monitors. The discussed prototype implementation reduces the noise and power-consumption characteristics in fans of personal computers, especially of those PCs that are designed from off-the-shelf components. We further argue that our prototype is easier, more intuitive and robust compared to solutions available elsewhere.
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| 896 |
從實踐中體現： 匯聚而生一個多元文化「Hackerspace」社群 / Embodied in Practice: The Emergence of a Multicultural Hackerspace Community高敏功, Kao, Eli Unknown Date (has links)
從實踐中體現： 匯聚而生一個多元文化「Hackerspace」社群 / Hackerspaces are open and public workshops where participants pro-actively engage with technology in a social context. From origins in 1990s Germany, the global propagation of hackerspaces has been grassroots, decentralized, and extra-institutional. How does a new hackerspace emerge? What are some key social processes at work within a hackerspace and how are they conditioned by a multilingual, multicultural setting? What roles do values and ideology play? The present study addresses these questions through immersion in the social world of a hackerspace in Taipei, Taiwan. Participant observation and in-depth interview data were analyzed using grounded theory techniques. The results emphasize that initial organizing depends on catalysts and relevant prior experience may be crucial. Local conditions in the form of a multicultural, multilingual environment are shown to affect social processes, sometimes as a source of friction. Ideological and political concerns do not seem salient to Taipei Hackerspace participants generally, though values implicit in practices present alternatives to institutional conventions. In addition, four primary processes are proposed: “Project-ing,” Sharing, “Making it one’s own,” and Negotiating. Finally, support is given to the concept of a transferable hackerspace model that is adapted to local conditions. The values and principles observed—sharing and openness norms, “do-ocracy”, ad hoc organizing, resistance to rules and hierarchy—can be traced to various influences in hackerspaces’ historical development, particularly the open source movement, and serve to optimize hacking potential while fostering a heterogeneous community network.
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| 897 |
Chemnitzer Linux-Tage 2010Demierre, Andéol, Eggers, Monika, Garbe, Anselm R., Groß, Thomas, Jaenisch, Volker, Jung, Marco, Knopper, Klaus, Lang, Jens, Luithardt, Wolfram, Noble, Howard, Obst, Marcus, Pucklitzsch, Thomas, Schlittermann, Heiko, Schumacher, Stefan, Seidel, Philipp, Spillner, Josef, Tang, Kang, Walle, Bernhard, Wetzel, Ulrich 16 April 2010 (has links) (PDF)
Die Chemnitzer Linux-Tage fanden am 13. und 14. März 2010 auf dem
Campus der Technischen Universität Chemnitz statt. Neben den Präsentationen
im Foyer zogen vor allem die Vorträge über 2500 Besucher zur 12. Auflage
der Veranstaltung.
Der Band vereint den Inhalt von 15 Hauptvorträgen und die Abstrakts von
76 weiteren Beiträgen und stellt damit einen Überblick über das weit
gefächerte Programm der Veranstaltung dar. / The Chemnitz Linux Days took place at the campus of the Chemnitz University
of Technology. Besides the presentations at the foyer the lectures were
first of all attractive for more than 2.500 visitors.
This volume contains the content of 15 main lectures and abstracts of 76
further talks and hence gives a survey of the broadly based program
of this event.
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| 898 |
Fast Low Memory T-Transform: string complexity in linear time and space with applications to Android app store security.Rebenich, Niko 27 April 2012 (has links)
This thesis presents flott, the Fast Low Memory T-Transform, the currently fastest and most memory efficient linear time and space algorithm available to compute the string complexity measure T-complexity. The flott algorithm uses 64.3% less memory and in our experiments runs asymptotically 20% faster than its predecessor. A full C-implementation is provided and published under the Apache Licence 2.0. From the flott algorithm two deterministic information measures are derived and applied to Android app store security. The derived measures are the normalized T-complexity distance and the instantaneous T-complexity rate which are used to detect, locate, and visualize unusual information changes in Android applications. The information measures introduced present a novel, scalable approach to assist with the detection of malware in app stores. / Graduate
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| 899 |
應用開放源碼WebGIS於社區資源管理之研究 / Application of open source WebGIS in community resources management單勇恩 Unknown Date (has links)
國內許多社區擁有豐富的自然及人文資源，為了有效促進經濟發展與促使遊客了解社區環境資源，部分組織體系較完整的社區，已陸續展開社區發展規劃工作，鼓勵社區民眾共同參與社區林業經營與環境資源管理等工作。對於社區資源管理方面，如何將社區內各項資源進行有效地規劃與適當地呈現，以及與其他不同社區之間的資源資料整合，皆為當前主要面臨的課題之一。為考量社區的經濟條件限制，本研究利用低成本的開放源碼(Open Source)軟體如Django和QGIS (Quantum GIS)，及網路上提供的免費軟體Google Earth，搭配空間資訊科技輔助資料蒐集，建構出社區資源之地理空間資料庫，並建立一套完整的網際網路地理資訊系統WebGIS (Web-based GIS)平台，提供使用者可經由操作網頁方式進行資料分享、管理及分析等服務。並結合MapServer、Google Maps API (Application Programming Interface)、Openlayers API與JavaScript設計動態網頁，讓社區和一般使用者可以透過地圖互動方式與相關地理資料的多樣化呈現以了解社區之各項資源，且促使社區管理者更有效進行資源規劃及提高生態旅遊之效益；同時融入公眾參與地理資訊系統(Public Participation Geographic Information Systems, PPGIS)的理念，鼓勵共同參與資源管理，於網站上加入討論與分享機制，進而擴大居民參與社區資源規劃討論的空間。研究成果顯示，利用GPS軌跡記錄器可於低成本的條件下，幫助環境資源等資料的收集；本研究舉辦數次的教育訓練以及觀察社區居民的學習情形，證實利用WebGIS平台的簡易操作，能促使社區中不同的使用者願意分享各自擁有的資料，發揮自發性地理資訊(Volunteered geographic information, VGI)的精神。且藉由公眾參與的方式，將能獲得更多不同來源的圖資或社區資源相關資料，以強化系統的資料庫內容。此外，透過各種豐富圖資瀏覽與空間分析工具，更有利於社區資源管理與決策分析之應用。 / Many local communities have a wealth of natural and humanistic resources. In order to effectively promote economic development and let more tourists know the environmental resources of the community, some more well-organized communities have launched community development planning to encourage local people to participate in community forestry and environmental resources management work. For community resources management, the most important issue is how to manage and present various community resources effectively, and to integrate resource data collected by different communities. Considering the economic constraint of community, this study used low-cost open source software such as Django and QGIS (Quantum GIS), and free software such as Google Earth, and spatial information technologies to collect data and establish geospatial database of community resources. Moreover, a WebGIS (Web-based GIS) platform was built to provide users with various services including data sharing, management, and analysis. By combining MapServer, Google Maps API (Application Programming Interface), Openlayers API, and JavaScript dynamic web pages, the system let users understand the resources of the community through a diverse display of interactive electronic maps and related geographic information. It also enables the community manager to carry out resource planning more effectively, and promotes benefits of ecotourism. In addition, the system incorporates the concept of PPGIS (Public Participation Geographic Information Systems) by adding functionalities of discussion and information sharing so as to encourage public involvement in resource management, and facilitate residents to participate in the discussion of resource planning. The results show that, GPS tracking devices can assist in collecting community resources data with low cost and high efficiency. By observing the activities of community residents after several training workshops, this research proves that WebGIS platform can facilitate different users of the community to voluntarily share their own data, which conforms to the spirit of VGI (Volunteered geographic information). With public participation, the geodatabase can effectively incorporate more data about the community resources from different sources. Furthermore, the geodatabase and spatial analysis tools will be helpful for decision-making on community resources management.
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Resource Centre Sites: The New Gatekeepers of the Web?Bruns, Axel Unknown Date (has links)
This thesis introduces and analyses the emerging Website genre of Resource Centre Sites. RCSs are sites which combine news, rumours and background information as well as community discussion and commentary on their chosen topic, and frequently serve as a first point of entry for readers interested in learning more about the field. They also offer spaces for virtual communities of specialists or enthusiasts to emerge, who in the process and as a product of their interaction on these sites collate detailed resource collections and hyperlink directories for their fields of interest. Therefore, Resource Centre Sites significantly involve their users as content contributors and producers, turning them into what is here termed produsers of the site. Aiming to evaluate all the content relevant to their field that is becoming available online, and to coopt or at least link to this information from the news and resources collection that is a central part of the RCS, Resource Centre Site produsers engage in an adaptation of both traditional journalistic gatekeeping methodologies and librarianly resource collection approaches to the Web environment: in the absence of gates to keep online, they have become gatewatchers, observing the publication of news and information in other sources and publicising its existence through their own sites. Their operation is studied here through a number of case studies of major existing Resource Centre Sites from various fields of interest. These sites are analysed both based on their available Web content, and using background information obtained in a series of email interviews with RCS creators. In combination, this offers insights into the operating philosophies of sites and site editors, and provides an opportunity to assess to what extent these ideas have been translated into everyday practice. Chapter 1 provides an overview of past and current theoretical views of the Web in an effort to evaluate their suitability for the current study. Older approaches positing an abstract ideal form of hypertext are rejected in favour of a direct engagement with the World Wide Web as the now dominant mode of hypertextuality. Chapter 2 outlines the principles of gatewatching in contrast to traditional methods of evaluating news and information as they exist in journalistic media and archival institutions, and investigates the effects such gatewatching practices may have on editors and users. Chapter 3 describes the overall characteristics of Resource Centre Sites as a genre of Web publications. It notes the special role site users play in the operation of such sites (in their new role as produsers), and distinguishes the RCS genre from similar Website models such as portals and cybermediaries. Chapter 4 observes the everyday operation of such Websites in practice, using case studies of major existing Resource Centre Sites including Slashdot, MediaChannel and CountingDown, and interviews with their creators. (These interviews are included in full in the Appendix.) This analysis works with both a synchronic view to the variety of topics existing Resource Centre Sites are able to address, and a diachronic view to the evolution of proto-RCSs (such as enthusiast community or online advocacy sites) into fully-featured Resource Centre Sites. Finally, based on this analysis, Chapter 5 is then able to point out some of the implications and effects that increasing use of this media form may have on its users and the network of news and information publications on- and offline, and to indicate the potential for further developments of the site genre.
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