近些年来,随着计算机的计算能力和存储能力的飞速发展,科学计算的规模越来越大,在气象、生物技术、 油藏模拟、核技术等领域,用于计算的网格已达到百万、千万乃至数十亿,计算的数据结果也已达到 GB 乃至 TB 大小。而和计算、存储技术的飞速发展相比,由于受材料、电子等工艺的限制,计算机的显示尺寸的发展相对滞 后。如何能够快速、准确的表现海量数据已经成为一个亟需解决的问题。它不仅包括如何以更大的屏幕来显示数 据,还包括如何以更快的速度来处理数据。 使用并行计算技术的大屏幕显示是解决上述问题一个很好的途径。采用多个显示设备取代原来的单个显示设 备使得显示屏幕增大为相应的倍数;各个显示设备由单独的计算机进行驱动,计算任务的分担使得显示速度也大 大提高。 除了在科学计算方面的应用外,大屏幕显示作为一种“半沉浸式”的虚拟环境,在虚拟战场、视频会议、公 共场合演示等方面也有着广泛的应用。 大屏幕显示技...

Sorghum is something of an unknown in the Western diet. Originating in Africa, it is widely grown in dry regions because of its drought tolerance and is a staple grain for many people. In the southern US, it is also grown but almost exclusively for livestock fodder. However, it has recently seen an explosion of interest because of the presence of compounds thought to have anti-cancer properties...

25 Mycotoxins are toxigenic metabolites of fungi. They occur worldwide and are a potential risk to humans and animals when feeds and cereals are contaminated. Their importance and occurrence have been recognised for over 30 years. Following the eating of contaminated foods and feeds, so called mycotoxicoses are observed in animals. These intoxications should be differentiated from mycoses, whic...

Semantic Web reasoning systems are confronted with the task to process growing amounts of distributed, dynamic resources. This thesis presents a novel way of approaching the challenge by RDF graph traversal, exploiting the advantages of swarm intelligence. The nature-inspired and index-free methodology is realised by self-organising swarms of autonomous, light-weight entities that traverse RDF ...

Title: Risk Identification in Offshore Outsourcing of Services in Small and Medium sized Enterprises Authors: Oleksandra Volianska & Christian Schulz Supervisor: Andrea Fried, PD Dr. Background: Development of technologies and worldwide reductions of trade barriers during the last decades increased competition and the need to offer high-quality products and services for a reasonable price. Part...

PUBLISHED BY THE IEEE COMPUTER SOCIETY ■ 1540-7993/03/$17.00 © 2003 IEEE ■ IEEE SECURITY & PRIVACY 17 A fundamental goal of information security is to design computer systems that prevent the unauthorized disclosure of confidential information. There are many ways to assure this information privacy. One of the oldest and most common techniques is physical isolation: keeping confidential data on...