Trevor Schroeder

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Server scalability is more important than ever in today's client/server dominated network environments. Recently, researchers have begun to consider cluster-based computers using commodity hardware as an alternative to expensive specialized hardware for building scalable Web servers. In this paper, we present performance results comparing two cluster-based(More)
— Server responsiveness and scalability are more important than ever in today's client/server dominated network environments. Recently , researchers have begun to consider cluster-based computers using commodity hardware as an alternative to expensive specialized hardware for building scalable Web servers. In this paper, we present performance results(More)
Server responsiveness and availability are more important than ever in today's client/server dominated network environments. Recently, researchers have begun to consider cluster-based computers using commodity hardware as an alternative to expensive specialized hardware for building scalable Web servers. In this paper, we present performance results(More)
Variable-reluctance devices sense variations in flux linkage while semiconductors read variations in local flux density. The authors show how recognizing this fundamental difference leads to markedly different sensor design approaches, and propose new configurations with improved performance. The analysis of the sensors is based on a general theory(More)
In response to OEM demands for more durable cylinder block and head materials, Tupy has developed process capability for series production of compacted graphite iron (CGI). Prototype CGI block and head castings have provided 90% increase in tensile strength and 40% increase in elastic modulus relative to the production gray iron castings. The present paper(More)
Position sensors based on the detection of magnetic flux densities by Hall sensors or magnetoresistors are used in automotive applications for crankshaft and camshaft position sensing, which is needed for engine control. The paper identifies the limitations of traditional designs, which introduce an angular error between the position signal pulse and the(More)
An air-flow meter, developed primarily for the measurement of air intake into an internal combustion engine, is described. The well-known process of corona ion deflection in a gas flow together with proper electrode geometry and a detection scheme provides the conceptual basis for a humidity-insensitive ionic air-flow sensor. Output characteristics of the(More)
The exponential growth of the Internet, cou led with the increasing populari of dynamically generated content on the WorlJWide Web, has created the nee2 for more and faster Web servers capable of serving the over 100 million Internet users. Server clustering has emerged as a promising technique to build scalable Web servers. In this article we examine the(More)