Results 1 to 10 of about 6,674,091 (311)

Beam Shaping in Laser Powder Bed Fusion: Péclet Number and Dynamic Simulation

Metals, 2022
A uniform distribution of power density (energy flux) in a stationary laser beam leads to a decrease in the overheating of the material in the center of the laser beam spot during laser powder bed fusion and a decrease in material losses due to its ...
Sergey N. Grigoriev, Andrey V. Gusarov, Alexander S. Metel, Tatiana V. Tarasova, Marina A. Volosova, Anna A. Okunkova, Andrey S. Gusev   +6 more
doaj   +1 more source

Surface Hardening of Machine Parts Using Nitriding and TiN Coating Deposition in Glow Discharge

Machines, 2020
Surface hardening of machine parts substantially improves their performance. The best results are obtained when combined hardening consists of surface nitriding and subsequent deposition of hard coatings.
Alexander Metel, Sergey Grigoriev, Yury Melnik, Marina Volosova, Enver Mustafaev   +4 more
doaj   +1 more source

High-efficiency dielectrophoretic ratchet

Physical Review E, 2012
Brownian ratchets enable the use of thermal motion in performing useful work. They typically employ spatial asymmetry to rectify nondirected external forces that drive the system out of equilibrium (cf. running marbles on a shaking washboard). The major application foreseen for Brownian ratchets is high-selectivity fractionation of particle or molecule
Germs, W.C., Roeling, E.M., IJzendoorn, van, L.J., Smalbrugge, B., Vries, de, T., Geluk, E.J., Janssen, R.A.J., Kemerink, M.   +7 more
openaire   +3 more sources

Effects of melanin from Sepiella Maindroni ink (MSMI) on the intestinal Microbiome of mice

BMC Microbiology, 2017
Background By the search for new natural compounds with beneficial health effects, cephalopod ink has been considered as an attempt to develop new drugs and functional foods, which is an especially active field in Asia, where cephalopods are a major ...
Hui Dong, Weiwei Song, Chunlin Wang, Changkao Mu, Ronghua Li   +4 more
doaj   +1 more source

Multi-Thoracolumbar Variations and NR6A1 Gene Polymorphisms Potentially Associated with Body Size and Carcass Traits of Dezhou Donkey

Animals, 2022
The number of thoracolumbar vertebrae is a quantitative trait positively correlated with the economic traits of livestock. More thoracolumbar vertebrae individuals could genetically be used to improve the livestock population, as more thoracolumbar ...
Ziwen Liu, Qican Gao, Tianqi Wang, Wenqiong Chai, Yandong Zhan, Faheem Akhtar, Zhenwei Zhang, Yuhua Li, Xiaoyuan Shi, Changfa Wang   +9 more
doaj   +1 more source

Micro/nano manufacturing aircraft surface with anti-icing and deicing performances: An overview

Nanotechnology Reviews, 2023
The aircraft surface is prone to icing when flying under windward conditions. It is required to protect the aircraft surface from icing for flight safety. The anti-/deicing performance of aircraft surface is affected by the surface morphology and surface
Long Chen, Jinghang Xu, Xichun Luo, Zhanqiang Liu, Bing Wang, Qinghua Song, Yukui Cai, Yi Wan, Xiangyu Gao, Chunlong Li   +9 more
doaj   +1 more source

Electrical Discharge Machining of Al₂O₃ Using Copper Tape and TiO₂ Powder-Mixed Water Medium

Technologies, 2022
Aluminum-based ceramics are used in industry to produce cutting tools that resist extreme mechanical and thermal load conditions during the machining of Ni-based and high-entropy alloys.
Sergey N. Grigoriev, Anna A. Okunkova, Marina A. Volosova, Khaled Hamdy, Alexander S. Metel   +4 more
doaj   +1 more source

High temperature thermoelectric efficiency in Ba8Ga16Ge30 [PDF]

, 2008
The high thermoelectric figure of merit (zT) of Ba8Ga16Ge30 makes it one of the best n-type materials for thermoelectric power generation. Here, we describe the synthesis and characterization of a Czochralski pulled single crystal of Ba8Ga16Ge30 and ...
Christensen, M., Iversen, B. B., Snyder, G. Jeffrey, Toberer, Eric S.   +3 more
core   +1 more source

High-Efficiency Power Amplifiers [PDF]

, 2018
Postprint (published version)
Velasco Quesada, Guillermo, Martínez García, Herminio, Conesa Roca, Alfons   +2 more
openaire   +2 more sources

A unified STR profiling system across multiple species with whole genome sequencing data

BMC Bioinformatics, 2019
Background Short tandem repeats (STRs) serve as genetic markers in forensic scenes due to their high polymorphism in eukaryotic genomes. A variety of STRs profiling systems have been developed for species including human, dog, cat, cattle, etc ...
Yilin Liu, Jiao Xu, Miaoxia Chen, Changfa Wang, Shuaicheng Li   +4 more
doaj   +1 more source