نتایج جستجو برای: microrelief
تعداد نتایج: 137 فیلتر نتایج به سال:
The object of research is the technological route machining an aluminum alloy casting. carried out based on basic principles functionally oriented design processes in manufacture products. main hypothesis study need for a systematic approach to effect cutting modes certain method provision quality parameters system (machine – device tool workpiece). In traditional automated systems preparation ...
The problem of global climate change is one the most important problems society. Such relevance due to fact that in climatic parameters has a significant impact on economic sphere, ecological situation, social and political life, construction industry. systems long been beyond doubt. In recent years, perceived threat warming, interest long-term interannual fluctuations increased significantly. ...
The appearance of a soil results from the interaction of its different constituents with incident light. Color and various other attributes of the appearance of soil are highly sensitive to the nature, proportion, particle size and morphology, and spatial association of its mineral and organic components. In fact, color has been used for more than 75 yr to obtain information about these soil pr...
surfaces may have the same roughness index but one surface may have the roughness on average spaced farThe measurement of the roughness of soil surfaces on centimeter ther apart on the surface. A more complete characterizascales is important to modeling local soil erodibility. An acoustic backscatter technique was examined for its ability to quantify the tion would describe not only vertical sc...
Due to its multifactorial nature, skin friction remains a multiphysics and multiscale phenomenon poorly understood despite its relevance for many biomedical and engineering applications (from superficial pressure ulcers, through shaving and cosmetics, to automotive safety and sports equipment). For example, it is unclear whether, and in which measure, the skin microscopic surface topography, in...
1993; Parsons et al., 1993; Reiners et al., 1994; Parsons and Keller, 1995). Land use changes, such as deforestation and reforestation, modify Re-establishing trees, especially fast-growing N-fixing not only the organisms inhabiting affected areas, but also abovespecies, in deforested grassland landscapes can reverse and belowground environments. Topography further influences local changes in s...
Fungi are ubiquitous in Arctic soils, where they function as symbionts and decomposers and may affect the carbon balance of terrestrial ecosystems subjected to climate change, and yet little is known about soil fungi at high latitudes. Here we review data from recent molecular studies to determine broad patterns in Arctic soil fungal ecology. The data indicate comparatively high fungal diversit...
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