Results 61 to 70 of about 2,165,490 (292)

Synthesis of articular cartilage-inspired branched polyelectrolyte polymer for enhanced lubrication

Biosurface and Biotribology, 2020
The superlubrication property of articular cartilage is attributed to the hydration lubrication mechanism. This involves the complexation of biomacromolecules with phosphatidylcholine lipids to form a lubricating boundary layer on the surface.
Yixin Wang, Li Wan, Yulong Sun, Hongyu Zhang   +3 more
doaj   +1 more source

Materials‐Driven Additive Manufacturing for Electrical Machines: Qualification‐Oriented Design Beyond Geometric Freedom

Advanced Engineering Materials, EarlyView.
This perspective reframes additive manufacturing for electrical machines as a qualification‐limited materials and architecture design problem. It links process–structure–property–performance relationships to magnetic, conducting, dielectric, and thermal property windows, highlighting where AM can enable segmented magnetic circuits, permanent magnet ...
Dénes Fodor, Loránd Szabó
wiley   +1 more source

Comparative evaluation on friction and wear characteristics of SiC, Si(3)N(4), Al(2)O(3), and ZrO(2) sliding against PEEK composite for seawater hydraulic axial piston pumps

The Journal of Engineering, 2018
Comparative investigation on friction and wear properties of SiC, Si(3)N(4), Al(2)O(3), and ZrO(2) lubricated with seawater was carried out on a ring-on-ring contacted tribological test apparatus, and their worn surfaces were observed by an ultra-depth ...
Zhenhua Zhang, Lijie Yang, Xiangyang Wu, Chunping Li, Fei Wang   +4 more
doaj   +1 more source

Cryogenic Deformation Behavior of TiAl and Insights Into Embrittlement After High‐Temperature Exposure Combined With Secondary Ion Mass Spectroscopy of Near Surface Chemistry

Advanced Engineering Materials, EarlyView.
Near‐surface deuterium enrichment profiles for different microstructural types of TiAl after exposure at 700 °C in a heavy water‐containing environment. The deuterium levels are significantly higher than expected from natural occurrence, indicating that the heavy water dissociated during the exposure treatment and entered the specimens.
Jonathan D. H. Paul, Alexander Welle, Dirk Matthiessen, Michael Oehring, Fritz Appel, Florian Pyczak   +5 more
wiley   +1 more source

Nonlinearities in silicon optical fibers [PDF]

, 2011
The nonlinear propagation characteristics in a hydrogenated amorphous silicon core optical fiber are investigated to demonstrate ultra-fast all-optical switching by cross-absorption ...
Day, T.D., Peacock, A.C., J. V. Badding, Sazio, P.J.A., P. J. A. Sazio, N. Healy, Watts, R.T., R. T. Watts, Sparks, J.R., Slavík, R., R. Slavík, A. C. Peacock, J. R. Sparks, Mehta, P., Healy, N., Badding, J.V., P. Mehta, T. D. Day   +17 more
core   +1 more source

Uniform Luminescence at Breakdown in 4H-SiC 4°-Off (0001) p–n Diodes Terminated With an Asymmetrically Spaced Floating-Field Ring

IEEE Journal of the Electron Devices Society, 2015
Conventional floating-field rings, which are used to reduce the peak electric field at the periphery of power devices, cause nonuniform avalanche multiplication when applied to planar junctions formed on 4H-SiC substrates misoriented from (0001) toward ...
Kazuhiro Mochizuki, Norifumi Kameshiro, Hiroyuki Matsushima, Hiroyuki Okino, Renichi Yamada   +4 more
doaj   +1 more source

All‐in‐One Analog AI Hardware: On‐Chip Training and Inference with Conductive‐Metal‐Oxide/HfOx ReRAM Devices

Advanced Functional Materials, EarlyView.
An all‐in‐one analog AI accelerator is presented, enabling on‐chip training, weight retention, and long‐term inference acceleration. It leverages a BEOL‐integrated CMO/HfOx ReRAM array with low‐voltage operation (<1.5 V), multi‐bit capability over 32 states, low programming noise (10 nS), and near‐ideal weight transfer.
Donato Francesco Falcone, Victoria Clerico, Wooseok Choi, Tommaso Stecconi, Folkert Horst, Laura Bégon‐Lours, Matteo Galetta, Antonio La Porta, Nikhil Garg, Fabien Alibart, Bert Jan Offrein, Valeria Bragaglia   +11 more
wiley   +1 more source

Photoluminescence enhancement of porous silicon by organic cyano compounds

, 1998
A pronounced photoluminescence enhancement on chemically oxidized porous silicon was induced by a series of organic cyano compounds including 1,2-dicyanoethylene (CE), 1,3-dicyanobenzene (1,3-CB), 1,4-dicyanobenzene (1,4-CB), 1-cyanonaphthalene (1-CN ...
Xiao XR, Zhang ZZ, Wang ZP, Yin F, Li XP, Cao Y, Xiao XR,Chinese Acad Sci,Inst Photog Chem,Beijing 100101,Peoples R China., Li GH, Zhang BW   +8 more
core  

Dielectric properties of epoxy silica and boron nitride nanocomposites and moisture/temperature influences

IET Nanodielectrics, 2018
The epoxy resin was filled with nano-BN, surface treated, and untreated nano-SiO(2). Measurements of dielectric spectroscopy cover the range of frequency from 10^−2 to 10^5 Hz and will relate to the hydration of samples.
Dayuan Qiang, Yan Wang, George Chen, Thomas Andritsch   +3 more
doaj   +1 more source

Silicon content, physical and chemical properties of soils of the Khmelnytsky region of Ukraine

Вісник Київського національного університету імені Тараса Шевченка. Серія Геологія, 2020
Silicon plays the significant role in the growth and development of plants, their resistance to stress conditions. However, there is limited research on the content of various forms of silicon in soils, the relationship with soil cations, which is ...
O. Тоnkha, O. Bykova, O. Pikovska, I. Fedosiy, O. Menshov, A. Shepel   +5 more
doaj   +1 more source