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45.529  Articles
1 of 4.554 pages  |  10  records  |  more records»
Based on an analysis of the working principles of the hydraulic variable pitch system of a wind turbine, a novel Petri net model and reliability evaluation method are proposed. First, Petri net theory is adopted to build a model for each discrete state of... see more

Seepage failure in the form of piping can strongly influence the stability of block-in-matrix-soils (bimsoils), as well as weaken and affect the performance of bimsoil structures. The multiple-factor evaluation and optimization play a crucial role in cont... see more

Performance evaluations of three coconut cracking devices was carried out and its results compared with the conventional (hand cracking technique) of hitting on hard surface. The three devices include a punch-split device, an impact-split device and hydra... see more

Nondestructive measurements and evaluation has great significance in various domains of science, engineering and technology. The ob- jective of this research is to investigate the anisotropic behavior in a sandstone sample from non-invasive tests using La... see more

At present times, in the context of rising fuel and energy prices the energy saving is very actual phenomenon. A better building insulation and the replacement of large transparent constructions will significantly reduce heat loss of the building. The hyd... see more

Enhanced heat transfer surfaces allow more energy-efficient, compact and lightweight heat exchangers. Within this study, a method for comparing different types of enhancement and different geometries with multiple objectives is developed in order to evalu... see more

ResumenEn este artículo se presenta una experiencia educativa basada en la combinación de la clase inversa y el aprendizaje experiencial en los siguientes temas: hidrología e irrigación. Se han desarrollado herramientas multimedia alojadas en la plataform... see more

This paper presents the design of a highly efficient pneumatic motor system. The air engine is currently the most generally used device to convert potential energy of compressed air into mechanical energy. However, the efficiency of the air engines is too... see more

In the last few decades, urban flooding has been considered a serious and unavoidable problem for many cities worldwide. Climate change and rapid urbanization have contributed significantly to the increase in flood risk. To reduce the risk of floods, gree... see more

1 of 4.554 pages  |  10  records  |  more records»