a water jet machining is an industrial tool capable of cutting a wide variety of materials using avery high-pressure jet of water, or a mixture of water and an abrasive substance. this paperaddresses the concept of the intelligent knowledge base system (ikbs) for optimization of productdesign and manufacturing process for water jet machining in computer based concurrentengineering environment. ...

A computational fluid dynamics (CFD) code has been combined with a genetic algorithm (GA) to perform a two-dimensional drag minimization on the base region of tractor trailers. Few studies have been conducted with CFD driven by a GA due to extensive run times and the general non autonomous characteristics of meshing a suitable CFD geometry. This study solves the two-dimensional Reynolds-average...

Abstract Solar power generation is related to climatic conditions, and its high cost low efficiency have become the main factors restricting development. Realizing maximum tracking of solar photovoltaic through electronic technology control an effective measure increase systems, reduce costs, improve energy conversion efficiency, widely promote technology. According illumination characteristics...

Endurance time (ET) method is a relatively new performance-based earthquake method for structural evaluation and design. In this method, the structure is subjected to a gradually intensifying accelorogram(s) and its performance is assessed based on the maximum time duration that it can meet the specified performance objectives. Using moment-resisting and braced frames which are rehabilitated by...