نتایج جستجو برای: crack deflection
تعداد نتایج: 34108 فیلتر نتایج به سال:
There are many ways that women support their use of crack cocaine, including sex-for-crack bartering and other forms of prostitution. Empirical studies conducted in the mid-1970s and in the mid-1980s in New York City, and in Chicago in the late 1980s to early 1990s are compared, analyzing similarities and differences between the contemporary crack-prostitution scene and previous prostitution sc...
In this study, fracture toughness of North American elk (Cervus elaphus canadensis) antler and bovine femur were measured using four-point bending tests on single-edge notched compact samples (ASTM C1421). Tests were conducted on crack growth directions longitudinal and transverse to the long axis of antler and bone in both dry and hydrated conditions to study the effects of fiber orientation a...
The effects of HfB₂ and HfN additions on the microstructures and mechanical properties of TiB₂-based ceramic tool materials were investigated. The results showed that the HfB₂ additive not only can inhibit the TiB₂ grain growth but can also change the morphology of some TiB₂ grains from bigger polygons to smaller polygons or longer ovals that are advantageous for forming a relatively fine micro...
Because of the awkward and somewhat irregular shape of the weidment, conventional methods [I] could not be adapted to the nondestructive measurement of GT A W edge weid penetration on clamshell-style catalytic converters and a special inspection system based on the eiectric current deflection method was developed. DC or low-frequency AC electric resistance measurements, also known as the Potent...
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