Results 11 to 20 of about 2,165,490 (292)

New approaches to casting hypereutectic Al-Si alloys to achieve simultaneous refinement of primary silicon and modification of eutectic silicon [PDF]

open access: yes, 2013
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel UniversityHypereutectic Al-Si alloys are of increasing interest for applications that require a combination of light weight and high wear resistance, such as pistons ...
Al-Helal, Kawther
core   +7 more sources

Rolling contact fatigue of silicon nitride. [PDF]

open access: yes
Silicon Nitride has traditionally been used as rolling contact bearing material owing to its superior performance compared to bearing steels. Its successful application as a bearing element has led to the development of Silicon Nitride in other rolling ...
Wang, W.
core   +9 more sources

Silicon Nanocrystals for Silicon Photonics [PDF]

open access: yes, 2007
In the absence of suitable methods for integrating traditional semiconductor optoelectronic materials in CMOS microelectronic fabrication processes, nanostructured silicon has been actively explored as an alternative light emitter for silicon photonics ...
Walters, Robert Joseph
core   +1 more source

Design and evaluation of an energy storage system for helicopters

open access: yesThe Journal of Engineering, 2019
This paper presents the design and evaluation of an energy storage system (ESS) for helicopters with the aim to recover the kinetic energy in the rotor available after landing and to be able to control the 270 V DC bus voltage during load disturbances. A
Christian Klumpner, Mohamed Rashed
doaj   +1 more source

High-frequency current source converter for a direct drive powertrain in a wave energy converter

open access: yesThe Journal of Engineering, 2019
Wave energy converters (WECs) generally use a mechanical solution such as hydraulics or gearing to optimise the extraction of energy from the incoming waves prior to converting it into electrical energy via a high-speed rotating generator.
Stephen P. McDonald   +2 more
doaj   +1 more source

Water molecules on the liquid superlubricity interfaces achieved by phosphoric acid solution

open access: yesBiosurface and Biotribology, 2018
The superlubricity mechanism of phospholipid molecules on biological surfaces and interfaces has been receiving much attention. Since the superlubricity can be achieved with a phosphoric acid aqueous solution, the interaction of the phosphate group with ...
Yuan Gao   +4 more
doaj   +1 more source

Enhanced thermal conductivity of epoxy composites with core-shell SiC@SiO(2) nanowires

open access: yesHigh Voltage, 2017
Electronic packaging materials and thermal interface materials (TIMs) are widely used in thermal management. In this study, the epoxy composites with core-shell structure SiC@SiO(2) nanowires (SiC@SiO(2) NWs) as fillers could effectively enhance the ...
Dianyu Shen   +15 more
doaj   +1 more source

The effect of active forms of silicon on the biomass of agricultural crops during their growth period on technogenically altered soils of the Nikopol Manganese Ore Basin

open access: yesBiosystems Diversity, 2017
The problem of recovery of technogenically affected soils remains unsolved. Silicon which moves in the “soil – plant” system has been insufficiently studied, though this element takes part in many processes.
І. V. Wagner, V. І. Chorna
doaj   +1 more source

Searching and studying the “Siliceous springs” of Jizzakh and the role of such springs in improving human health (Uzbekistan) [PDF]

open access: yesE3S Web of Conferences
The research involves the search and study of springs with silicon compounds in Jizzakh region. 401 spring water samples in the region were checked for the presence of silicon compounds.
Tashpulatova S.A.   +4 more
doaj   +1 more source

Zur Chemie der siliciumorganischen Verbindungen

open access: yesCHIMIA, 1962
After briefly outlining the history of the chemistry of organo-silicon compounds this paper reports the formation of cyclic siliconmethylene compounds.
G. Fritz
doaj   +1 more source

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