Users who work together require adequate information about their environment—group awareness. In the CSCW literature several models and systems for group awareness have been presented. They basically capture information from the environment, process it, and present it to the users. In general, only the information per se is captured without capturing information about its context of origin. Fur...

Despite huge progress in information and communication technology it is often difficult to spontaneously contact persons who are at other locations. This is often due to the fact that important information about the persons at the other sites is missing. Users need to know if the potential communication or cooperation partners are present in the system, if they are available, how busy they are,...

This paper discusses the currency management mechanisms used in Deno, a replicated-object storage system designed for use in mobile and weakly-connected environments. Deno primarily differs from previous work in implementing an asynchronous weighted-voting scheme via epidemic information flow, and in committing updates in an entirely decentralized fashion, without requiring any server to have c...

     The aim of the present research was to study the effects of weak cation exchange resins, polacrilex with exchangeable H+ and polacrillin potassium and strong cation exchange resin sodium polystyrene sulfonate on water uptake behavior of ranitidine hydrochloride. Drug resin complexes (DRC) were prepared and evaluated for the percentage of moisture gain when placed in a humidity c...

 Environmental enrichment is one of the methods for improving fish growth performance. In the present trial, the effects of both light color and music on growth performance and survival of goldfish (Carassius auratus) (initial mean weight: 4.15±0.08 g) were investigated for 2 months. Two light color treatments (red light and white light) and three music treatments (M0: without music, M30:30 min...

automobile body plays crucial role in preventing the collision energy transfer in severe accidents to the passengers. if the collision energy is dissipated or saved in bumper or chassis, the amount of damage to the occupants would be minimized. using novel laminated panel (fiber metal laminate) in auto body, and considering the characteristics such as high energy absorption, strength, high dent...

Microwave-frequency signals are conveyed by using the Microstrip antennas. It is capable of dual and triple frequency operations and has light weight and low cost. Similarly, larger bandwidth can be achieved by Coplanar Waveguide (CPW) structure. Gain can be enhanced using the Defected Ground Structure (DGS). This paper presents the performance comparison of the design of a microstrip antenna a...

Industrial robot – manipulator is an irreplaceable device capable to execute the task of accurate and repeatable positioning of its end effector. In order to achieve this goal system rigidity is very important as well as installed power, capable for fast and reliable manipulation of both: its own weight and payload. Light weight arms, on the other hand, have very complex task. Ratio between sel...

................................................................................................................................................ III Acknowledgements ................................................................................................................................ V Publications ..........................................................................................

In this paper, we explain mechanisms for providing embedded network processors and other low-level programming environments with light-weight support for safe resource sharing. The solution consists of a host part, known as HOKES, and a network processor part, known as POKES. As common operating system concepts are considered to be too heavy-weight for this environment, we developed a system th...