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Lithium (Li) ion cells suffer from significant performance degradation at sub-zero temperatures. This paper presents a Predictive Control based technique that exploits the increased internal resistance of Li-ion cells to improve the power capability of Li-ion cells operating at sub-zero temperatures. The current is shaped as bi-directional pulses to minimize total energy discharge and adverse side...
Parallel file systems suffer performance degradation of small files generated by many workloads. We provide the systematic analysis of the small files problem from aspects of both parallel file system architecture and workload characteristics. Based on the analysis, we discuss the deficiencies of current optimizations and propose several open questions and possible research directions to address the...
This paper proposes a reliability management method for new electronics development under fast time-to-market requirements. We approach the reliability growth across the product life cycle from design, manufacturing, assembly, and field operation in the context of distributed manufacturing paradigm. The management method consists of three modules including corrective actions, reliability prediction,...
Oracle provides several options to aid performance, such as partitioning large tables, using materialized views, storing plan outlines, and many others. This chapter examines how DBAs can use these techniques to aid developers' efforts to increase the efficiency of their application code. This chapter introduces the SQL Tuning Advisor to help you tune SQL statements. You can then use the recommendations...
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