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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.
21

Mitteilungen des URZ 2/2011

Clauß, Matthias, Heik, Andreas, Richter, Frank, Riedel, Wolfgang 20 June 2011 (has links)
Informationen für URZ-Nutzer, in dieser Ausgabe speziell zur Umstellung der Systemsoftware zentral administrierter Computer sowie zu Sicherheitsfragen für Webserver und E-Mail:o Windows7 am Campus der TUC o Active Directory Dienste o Scientific Linux 6 am Campus der TUC o Poolnutzung im Wintersemester 2011/12 o Sichere Geheimnisse für Webanwendungen auf zentralen Webservern o E-Mail-Bearbeitung sichern - ein Drama in mehreren Akten o Kurzinformationen: - Compute- und Referenz-Server für SL 6 - Windows Server 2008 R2 im Pilotbetrieb - Portal zur Beschaffung von Standard-PC-Technik - Renovierung Computerpools - Azubis im URZ - Facettierung im WebOPAC der UB o Software-News:
22

Data-Grey-BoxWeb Services in Data-Centric Environments

Lehner, Wolfgang, Habich, Dirk, Preissler, Steffen, Richly, Sebastian, Assmann, Uwe, Grasselt, Mike, Maier, Albert 27 May 2022 (has links)
In data-centric environments, for example, in the field of scientific computing, the transmission of large amount of structured data to Web services is required. In service-oriented environments (SOA), the Simple Object Access Protocol (SOAP) is commonly used as the main transport protocol. However, the resulting 'by value' data transmission approach is not efficiently applicable in data-centric environments. One challenging bottleneck of SOAP arises from the XML serialization and deserialization when processing large SOAP messages. In this paper, we present an extended Web service framework which explicitly considers the data aspects of functional Web services. Aside from the possibility to integrate specialized data transfer methods in SOA, this framework allows the efficient and scalable data handling and processing within Web services. In this case, we combine the advantages of the functional perspective (SOA) and the data perspective to efficiently support data-centric environments.
23

Web server pro vestavěné aplikace / Web Server for Embedded Applications

Pirkl, Tomáš January 2007 (has links)
This work discuses Embedded Ethernet systems. Embedded Webserver Platform is designed. This design embrace microkontroler, Ethernet driver, and external SRAM. It includes implementation on PCB with MMC interface and software implementation of MMC driver and FAT file system. Reference model ISO/OSI, reference model TCP/IP, Ethernet and UDP, TCP, IP, HTTP protocol is presented.
24

Client-Server Communications Efficiency in GIS/NIS Applications : An evaluation of communications protocols and serialization formats / Kommunikationseffektivitet mellan klient och server i GIS/NIS-applikationer : En utvärdering av kommunikationsprotokoll och serialiseringsformat

Klingestedt, Kashmir January 2018 (has links)
Geographic Information Systems and Network Information Systems are important tools for our society, used for handling geographic spatial data and large information networks. It is therefore important to make sure such tools are of high quality. GIS/NIS applications typically deal with a lot of data, possibly resulting in heavy loads of network traffic. This work aims to evaluate two different communications protocols and serialization formats for client-server communications efficiency in GIS/NIS applications. Specifically, these are HTTP/1.1, HTTP/2, Java Object Serialization and Google's Protocol Buffers. They were each implemented directly into a commercial GIS/NIS environment and evaluated by measuring two signature server calls in the system. Metrics that were examined are call duration, HTTP overhead size and HTTP payload size. The results suggest that HTTP/2 and Google's Protocol Buffers outperform HTTP/1.1 and Java Object Serialization respectively. An 87% decrease in HTTP overhead size was achieved when switching from HTTP/1.1 to HTTP/2. The HTTP payload size is also shown to decrease with the use of Protocol Buffers rather than Java Object Serialization, especially for communications where data consist of many different object types. Concerning call duration, the results suggest that the choice of communications protocol is more significant than the choice of serialization format for communications containing little data, while the opposite is true for communications containing much data. / Geografiska informationssystem och nätverksinformationssystem är viktiga redskap för vårt samhälle, vilka används för hantering av geografisk data och stora informationsnätverk. Det är därför viktigt att se till att sådana system är av hög kvalitet. GIS/NIS-applikationer behandlar vanligtvis stora mängder data, vilket kan resultera i mycket nätverkstrafik. I det här arbetet utvärderas två olika kommunikationsprotokoll och serialiseringsformat för kommunikationseffektivitet mellan klient och server i GIS/NIS-applikationer. Specifikt är dessa HTTP/1.1, HTTP/2, Java Objektserialisering och Googles Protocol Buffers. De implementerades var och en i en kommersiell GIS/NIS-miljö och utvärderades genom mätningar av två signaturanrop i systemet. De aspekter som observerades är kommunikationstiden, mängden HTTP-overhead och mängden HTTP-payload. Resultaten tyder på att HTTP/2 och Googles Protocol Buffers presterar bättre än HTTP/1.1 respektive Java Objektserialisering. En 87% minskning av mängden HTTP overhead uppnåddes då HTTP/1.1 ersattes med HTTP/2. En minskning av mängden HTTP payload observeras också med användning av Protocol Buffers snarare än Java Objektserialisering, särskilt för kommunikationer där data innehåller många olika objekttyper. Gällande kommunikationstiden tyder resultaten på att valet av kommunikationsprotokoll påverkar mer än valet av serialiseringsformat för kommunikationer med små mängder data, medan motsatsen gäller för kommunikationer med mycket data.
25

Workshop: INFRASTRUKTUR DER ¨DIGITALEN UNIVERSIAET¨

Huebner, Uwe 09 August 2000 (has links)
Gemeinsamer Workshop von Universitaetsrechenzentrum und Professur Rechnernetze und verteilte Systeme (Fakultaet fuer Informatik) der TU Chemnitz. Workshop-Thema: Infrastruktur der ¨Digitalen Universitaet¨
26

Workshop: INFRASTRUKTUR DER ¨DIGITALEN UNIVERSIAET¨

09 August 2000 (has links)
Gemeinsamer Workshop von Universitaetsrechenzentrum und Professur Rechnernetze und verteilte Systeme (Fakultaet fuer Informatik) der TU Chemnitz. Workshop-Thema: Infrastruktur der ¨Digitalen Universitaet¨

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