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This study aims to develop a complete methodology for assessing flammability hazards of typical fuels (ie, transformer oil, hydraulic oil, gear oil, and lubricating grease) used in a wind turbine nacelle by combining different experimental techniques such as thermogravimetric analysis and cone calorimetry. Pyrolysis properties (onset temperature, temperature of maximum mass loss rate, and mass residue)...
Global optimization oriented energy control algorithms can improve fuel economy of HEV for certain driving cycle. But it can't be used for the other driving cycles. This paper built a adaptive energy control strategy based on driving cycle recognition. Through driving cycle and microtrip studying, analysis was made on characteristic parameters of driving cycles, based on which, ten parameters oriented...
For the complex calculation and analysis problems existing in the liquid ammonia tank leakage and gas diffusion simulation, by selecting appropriate gas diffusion model and writing a program to simulate and analyze the spread of dangerous gas, This article could draw the ammonia diffusion concentration distribution, and the hazardous areas of ammonia diffusion could be divided accurately and rapidly,...
The fires bring huge loss every year, a large number of firefighters and victims are seriously injured in fires and many of them even lost their lives. The aim of this work is to study on the thermal safety and discomfort of human body in fire environment using modeling and CFD methods. A transient multi-node human thermal model is developed for improving the simulation of thermoregulation in serious...
Analyzed the forms of movement of missile actuator based on spatial RSSR linkage mechanism. To achieve synchronic output of each axis, applied the multi-body dynamic application ADAMS to realize its parametric modeling and optimization, finally got the appropriate parameters to satisfy the performance. Then, researched the parameters affection to synchronic performance completed the initial design...
We consider the bounded batch scheduling problem to minimize total completion time for jobs with release dates and identical processing time under tree precedence constraints. We give the first polynomial-time approximation scheme (PTAS) for the problem.
The paper presents an improved optimal location choice in a network. The location choice model considers not only the maximum distances between the vertices but also the sum of the whole cost, which is a common problem in our society.
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