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The human posture prediction model is one of the most important and fundamental components in digital human models. The direct optimization-based method has recently gained more attention due to its ability to give greater insights, compared to other approaches, as how and why humans assume a certain pose. However, one longstanding problem of this method is how to determine the cost function weights...
Triboelectric nanogenerator (TEG) as a novel energy harvester has received a great attention since 2011, although the influence of hygroscopicity of triboelectric materials is still lacking. In this paper, we have focused on the effect of hygroscopicity on the output power from the TEG. It was found that under the same mechanical excitation, the output power of the TEG fabricated with hygroscopic...
This paper studies the method of extracting two-dimensional terrain profile of the earth great circle from the Shuttle Radar Topography Mission (SRTM) data for the arbitrary wave propagation path, uses the bilinear interpolation method to obtain the elevation value of the arbitrary location on the terrain profile, and compares the result with the result of the GIS software to verify the correctness...
Non-uniform mesh technology of parabolic equation method is introduced to solve the radio wave propagation problems in forest more efficiently. The simulation errors of radio wave propagation in forest with different uniform grids are analyzed first. The results indicate that fine grid in forest area is necessary to ensure the simulation accuracy. As typical scenes for simulation are usually forest...
This paper is devoted to the study of an embedding method for semi definite programming problems using Extended Lagrange-Slater dual (ELSD) and its Lagrangian dual. A theorem proved by de Clerk et al. in 1996 is revisited. A new proof is provided utilizing a result regarding the weak feasibility of a conic linear programming problem.
Anatase TiO2 nanocrystals with the specific surface area ranged from 100 to 220 m2/g were prepared by the hydrothermal treatment of anatase TiO2 sols at the temperature of 110??C and above. When TiO2 sols with a lower content of TiO2 and at a relatively high pH value were hydrothermal treated, the dispersible and nanorod-like TiO2 nanocrystals were formed via the oriented attachment. The nanorod-like...
Microfluidic reactors with a design of steep temperature step or in microwave irradiation were utilized for preparation of LaF3/LaPO4: Ce, Tb nanocrystals using diethylene glycol (DEG) or ethylene glycol (EG) as solvent. Microfluidic reactor in special designs could separate the nucleation and growth of crystallization for shape-control and better bio-properties. The monodisperse and water-soluble...
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