Performability Evaluation of CASMA/CD and CASMA/DCR Protocols under Transient Fault Conditions

Center for Advanced Studies in Measurement and Assessment CASMA Technical

Performability of a token bus network under transient fault conditions

Local area networks are representative of a growing class of distributed systems which demand more sophisticated methods and tools to evaluate system behavior in the presence of faults. In particular, since they are likely to exhibit degradable performance, the concept of performability can provide more re ned assessments of their ability to perform under fault and error conditions. This paper ...

Can Real-Time Local Area Network Protocols Be Made Robust?

This paper proposes a formal definition of the robustness property which, we believe, developers of future real-time (RT) local area network (LAN) protocols must aim to realize. A s a demonstration of the utility of this definition, the Carrier Sense Mult iple Access with Deterministic Collision Resolution (CSMA/DCR) protocol is then analyzed for its robustness and an extension of the CSMA/DCR ...

Dimensions of human ejaculated spermatozoa in Papanicolaou-stained seminal and swim-up smears obtained from the Integrated Semen Analysis System (ISAS(®)).

Objective measurements are required for computer-aided sperm morphometric analysis (CASMA) machines to distinguish normal from abnormal sperm heads. The morphometric characteristics of spermatozoa in 72 samples of semen and of spermatozoa from 72 other semen samples after swim-up were quantified by the semi-automated Integrated Sperm Analysis System (ISAS) computer-aided system, which measured ...

Performability Evaluation of Networked Storage Systems Using N-SPEK

This paper introduces a new benchmark tool for evaluating performance and availability (performability) of networked storage systems, specifically storage area network (SAN) that is intended for providing block-level data storage with high performance and availability. The new benchmark tool, named N-SPEK (Networked-Storage Performability Evaluation Kernel module), consists of a controller, sev...