The Handoff delay is one of the major problems in Wireless Network (WLN) that needs to be solved in order to allow time-critical and real-time applications run continuously during handoff. We have developed a fast handoff scheme called NodeScan (or MobileScan) to provide a novel use of channel scanning latency by employing open system authentication. This scheme comprises two steps: firstly a c...

THIS PAPER DESCRIBES THE SOFTWARE ARCHITECTURE OF A SYSTEM DESIGNED IN RESPONSE TO THE HEALTH DEVELOPMENT POTENTIAL OF TWO CONCOMITANT TRENDS IN POOR COUNTRIES: i) The rapid expansion of community health worker deployment, now estimated to involve over a million workers in Africa and Asia, and ii) the global proliferation of mobile technology coverage and use. Known as the Mobile Technology for...

This paper reports on a practical implementation of a context mediator for the fixed income securities industry. We describe industry circumstances and the data and calculation services (DCS) mediator developed and deployed in the early 1990s. The mediator was designed as an interpretive engine controlled by a static declarative knowledge structure and client preference data. In addition to het...

While structural symmetry is a prevailing feature of homo-oligomeric proteins, asymmetry provides unique mechanistic opportunities. We present the crystal structure of full-length TRAP1, the mitochondrial Hsp90 molecular chaperone, in a catalytically active closed state. The TRAP1 homodimer adopts a distinct, asymmetric conformation, where one protomer is reconfigured via a helix swap at the mi...

Many practical information extraction systems use simple taxonomies for mapping extracted strings to client-specific concept codes. In such taxonomies, concepts are defined as groups of semantically similar words and phrases. For the mapping to be accurate, a new client-specific taxonomy – usually nothing more than a set of concept codes, each with a single description – needs to be enriched wi...

The requirements approval method is necessary to ensure that the system requirements have been identified in right way and the understanding between the contractor and the client exist. During research conducted is identified that most of the scholars have been working for the requirements definition during the meeting with the client, even they started to initiate the validation by checking wh...

Continuous media (CM) applications require Quality of Service (QoS) guarantees from the disk, as well as from the CPU and network. Their requirements can often be expressed in terms of data rates, which are portable descriptions of resource needs. QoS-aware disk schedulers need an accurate predictor of their clients’ resource usage in order to perform admission control and limit the effect of m...

Automated verification of software built from data abstraction is rendered difficult by reference behavior both in the client code and implementation code. In the client code, object encapsulation through component development in modern programming languages remains a problem, because clients can violate the abstraction boundary by accessing object internals through aliased object references. I...

A key requirement for enabling collaboration between distributed (wired and wireless) clients in a networked environment, with heterogeneous and dynamic capabilities, is an underlying information and QoS management protocol that can adapt on-the-fly based on the local system and client state, so as to maintain effective information sharing. This paper presents the design, implementation and eva...

We describe an algorithmic framework for lossless compression of route descriptions. This is useful for hybrid route planning where routes are computed by a server and then transmitted to a client device in a car using some mobile radio communication where bandwidth may be low. Compressed routes are represented by only a few via nodes which are the connection points when the route is decomposed...