Ray casting has become a fundamental step in many graphics algorithms es pecially in the area of global illumination Examples include using rays to calculate form factors for traditional radiosity track energy in particle tracing and trace possible transport paths in path tracing The appeal of ray casting is that it o ers a exible and intuitive way to query visibility within a scene and we expe...

The aggregation and morphology within the photoactive layer is of considerable significance to boost power-conversion efficiency (PCE) organic solar cells (OSCs). Herein, heating-induced control nonfullerene acceptor BTP-eC7 during sequential casting was demonstrated. large aggregates can be significantly reduced by hot solution on D18 fibrillar layer, further eliminated heated substrate, leadi...

Preparing dry specimens from liquid samples for XRF analysis avoids introducing caustic or hazardous liquids into the instrument. Several modifications were made to a dried residue specimen preparation method for quantifying gallium in plutonium metal in order to improve the method accuracy and precision. Ion exchange chromatography was utilized to remove the plutonium prior to casting the drie...

The purpose of this study was to investigate the correlation between corrosion resistance and surface composition of an experimental Ti-20 mass% Cr casting alloy in a saline solution containing fluoride. The alloy had a greater resistance to corrosion in a fluoride-containing saline solution than did commercially pure titanium. However, with confirmed dissolution of titanium and chromium, it me...

The rate of solidification affects the microstructure, quality and mechanical properties of the castings. The analysis of heat transfer in centrifugal casting is very complex due to rapid solidification, rotating mould, opaque mould and high temperature. As the grain size is directly depending on the rate of solidification of the casting, based on grain size the rate of solidification of the ce...

background: in addition to gas pollutants, many chemicals and air pollutants are in the form of particulate matter. particulate matter consists of a complex mixture of variable sized particles and physicochemical composition. these particles mainly contain minerals including fe, al, ca, k, cu, ti, mn, ni, v and their size, chemical composition and concentration are important to assess the exten...

In the present paper a review for the experimental and finite element analysis techniques is adopted for gravity die casting. Experimental Data taken for Solidification of gravity die Casting is modeled and meshed initially then validation is followed by comparing the experimental and modeled results. This helps to optimize the design criteria for gravity die cast part. To overcome the problem ...

The puprose of this study was to evaluate retention force of conical double crowns in two material connections: gold casting alloy/gold casting alloy and gold casting alloy/gold electroforming alloy. 12 crown pairs of both material connections with the cone angles of 2°, 4° and 6° were made. Experiment of 10.000 in-and-out cycles was performed using a new device which allows the retentive force...