This paper discusses the design of hydrodynamically scaled models of offshore structures subjected to wave loading. A considerable amount of engineering design and analysis is required to ensure the high performance of a model/dynamometer system, especially when dealing with large scale models (for example, 1:40). The system is designed to be as rigid as possible so that the dynamometer measure...

The throttle mechanism, a regulatory technique of engine output, is accompanied by loss some energy. effect intake air throttling on the performance and emissions multi-cylinder spark ignition gasoline was experimentally investigated. coupled to hydraulic dynamometer equipped with customized cooling system for both dynamometer. Experimental tests were performed various speeds air-fuel ratios at...

Wire rope used in cable logging, where a series of cables facilitate the extraction timber on steep terrain, experiences high tensions that must be managed to ensure safety. Innovations change practices over time and double-hitch carriages, which allow trees extracted horizontally, are recent example. This makes it feasible harvest across terrain with limited deflection, increases recovery biom...

We aimed to study the safety and efficacy of the cystoscopy-assisted nonrefluxing ureteral reimplantation technique using submucosal tunneling during laparoscopic ureteroneocystostomy (UNC) with a psoas hitch in patients with distal ureter stricture after gynecologic surgery. We reviewed six female patients who underwent gynecological surgeries. All patients showed persistent postoperative dist...

The Untied States Department of Energy is engaged in the research, development and deployment of PHEV technology through the “Advanced Vehicle Testing Activity.” In this program, data has been collected from a Prius PHEV converted by Hymotion using industry standard dynamometer testing procedures and from in-use operation of fleets. Differences in fuel-only consumption rates observed in the on-...

OBJECTIVE The objective was to determine the reliability of a portable forearm strength hydraulic dynamometer with a doorknob handle and assess its validity compared with a Cybex 6000 (Cybex International, Inc., Medway, MA) isometric torque assessment. METHOD Eighteen volunteers (with a total of 30 forearms) participated in this one-session methodological study to determine the intra- and int...

This paper addresses the problem of electronic emulation of both linear and nonlinear mechanical loads using a vector-controlled induction machine dynamometer. It is shown that a basic emulation scheme where the dynamometer torque demand is derived from the inverse dynamics of the emulated load is not generally viable, especially if the emulated load is part of a closed-loop speed control syste...