Amorphous boron carbide (B4C) thin films are by far the most popular form for neutron converting layers in 10B-based detectors, which a rising trend detector technologies response to increasing scarcity and price of 3He, standard material detection. The microstructure B4C is closely related important properties, e.g. density adhesion, layers, eventually affect detection efficiency long-term sta...

Abstract The surface topography of diamond coatings strongly affects properties such as adhesion, friction, wear, and biocompatibility. However, the understanding multi-scale topography, its effect on properties, has been hindered by conventional measurement methods, which capture only a single length scale. Here, four different polycrystalline are characterized using transmission electron micr...

In 1998, a typhoon struck before rice harvesting in Japan, and the unpolished rice was found to be stained brown. Samples were collected and analyzed for the presence of trichothecenes using GC/MS. The mycotoxins deoxynivalenol (DON), fusarenon-X (Fus.-X) and nivalenol (NIV) were detected and confirmed with GC/MS. The quantity of trichothecenes was determined using GC-ECD. To our knowledge, thi...

Once upon a time there was a struggling young California band. Its music was too loud and its image too unpolished for MTV. Its social and political messages were a little too disturbing for radio. But it built a passionate following among underground-rock fans by touring relentlessly, staying true to its message and encouraging fans to record its live shows and distribute bootlegged tapes as w...

abstract statement of the problem: surface roughness is a key factor in the aesthetics of restorative dentistry as it can determine the clinical quality and success of restorative materials. the chemical process of dissolution in the presence of mechanical forces can accelerate the surface roughness of tooth-coloured restorative materials. objectives: to determine the degree of surface roughnes...

OBJECTIVE To evaluate the effect of four commercially available denture adhesives (DAs) on surface roughness of two chemically different denture base materials. MATERIALS AND METHODS Fifty specimens of heat-cured polymethyl methacrylate, and another fifty specimens of light-cured urethane dimethacrylate were divided into five groups (n = 10), each was immersed in four prepared DAs (Corega Sup...

According to Stedman's Medical Dictionary, a vitamin is 'one of a group of organic substances, present in minute amounts in natural foodstuffs, that are essential to normal metabolism.' As defined, vitamins are present in very small quantities in most foods and it is this fact that leads to the manufacture of vitamin supplements for dogs, cats, and people. Not only are vitamins naturally presen...

During a series of experiments designed to study mineral metabolism on rice diets (Cullumbine, Basnayake, LeMottee & Wickramanayake, 1950), it was also found possible to estimate the nitrogen content of the food and excreta for the group of twelve subjects and so to determine whether there were any differences in the nitrogen metabolism of subjects when eating diets first high in unpolished ric...

Social Protection Discussion Papers are not formal publications of the World Bank. They present preliminary and unpolished results of analysis that are circulated to encourage discussion and comment; citation and the use of such a paper should take account of its provisional character. The findings, interpretations, and conclusions expressed in this paper are entirely those of the author(s) and...