In this paper, we investigate the efficiency of various strategies for subdividing polynomial triangular surface patches. We give a simple algorithm performing a regular subdivision in four calls to the standard de Casteljau algorithm (in its subdivision version). A naive version uses twelve calls. We also show that any method for obtaining a regular subdivision using the standard de Casteljau ...

A high-pressure silicon infiltration technique was applied to sinter diamond–SiC composites with different diamond crystal sizes. Composite samples were sintered at pressure 8 GPa and temperature 2170 K. The structure of composites was studied by evaluating x-ray diffraction peak profiles using Fourier coefficients of ab initio theoretical size and strain profiles. The composite samples have pr...

Using classical molecular dynamics with a more reliable reactive LCBOPII potential, we have performed a detailed study on the direct graphite-to-diamond phase transition. Our results reveal a new so-called "wave-like buckling and slipping" mechanism, which controls the transformation from hexagonal graphite to cubic diamond. Based on this mechanism, we have explained how polycrystalline cubic d...

Mineralogical structures of carbon phases within the ureilite North West Africa 4742, a recent find, are investigated at various scales by high-resolution transmission electron microscopy (HRTEM), Raman microspectrometry and X-ray diffraction. Ureilites are the most carbon-rich of all meteorites, containing up to 6 wt.% carbon. Diamond, graphite and so-called “amorphous carbon” are typically de...

2014 Infinite periodic minimal surfaces are constructed from complex functions, which are simply related to the orientation of flat points on the surface. Two tetragonal families of surfaces are generated, which are shown to reduce in special cases to classical minimal surfaces : the cubic diamond surface (D surface) and the Scherk surface. In all cases the construction algorithm for the comple...

Diamond Eye is a new image mining system that enables users (scientists) to locate and catalog objects of interest in large image collections. This system provides a platform-independent interface to novel image mining algorithms, as well as computational and database resources that allow scientists to browse, annotate, and search through images and analyze the resulting object catalogs. The Di...

Submit Manuscript | http://medcraveonline.com Abbreviations: EPZS: Enhanced Predictive Zonal Search; ME: Motion Estimation; FS: Full Search; MC: Motion Compensation; BMA: Block Matching Algorithm; SA: Search Area; SAD: Sum of Absolute Difference; AVC: Advanced Video Coder; DS: Diamond Search; ES: Exhaustive Search; MVFAST: Motion Vector Field Adaptive Search Technique; PMVFAST: Predictive Motio...

A Scalable Multi-attribute Range Query Approach on Cluster-Based Hybrid Overlays p. 136 Satellite Image Structure Analysis with the GRID Technologies p. 146 A Dynamic File Maintenance Scheme with Bayesian Network for Data Grids p. 152 Simulations and Modeling High Performance Computation for Large Eddy Simulation p. 163 ARPP: Ant Colony Algorithm Based Resource Performance Prediction Model p. 1...

Iron nanoparticles were employed to induce the synthesis of diamond on molybdenum, silicon, and quartz substrates. Diamond films were grown using conventional conditions for diamond synthesis by hot filament chemical vapor deposition, except that dispersed iron oxide nanoparticles replaced the seeding. X-ray diffraction, visible, and ultraviolet Raman Spectroscopy, energy-filtered transmission ...

The effective chemical modification and self-assembly of diamond-based hierarchical composite materials are of key importance for a broad range of diamond applications. Herein, we report the preparation of novel core-shell diamond-based nanocomposites for dye adsorption toward wastewater treatment through a layer-by-layer (LbL) assembled strategy. The synthesis of the reported composites began ...