نتایج جستجو برای: silicon

تعداد نتایج: 81367  

2007
John E. Bowers Hyundai Park Alexander W. Fang Ying-hao Kuo Richard Jones Oded Cohen Mario J. Paniccia

Silicon evanescent lasers and amplifiers have been demonstrated utilizing low temperature wafer bonding technology. This approach enables the creation of high performance, small footprint active devices on silicon for photonic integrated circuits. Introduction Photonic integration has progressed greatly in realizing various functions for optical interconnects as well as long haul communication ...

Journal: :international journal of nano dimension 0
f. alfeel department of physics, science faculty, damascus university, syria. f. awad department of physics, science faculty, damascus university, syria. i. alghoraibi department of physics, science faculty, damascus university, syria. f. qamar department of physics, science faculty, damascus university, syria.

porous silicon samples were prepared by electrochemical etching method for different etching times. the structural properties of porous silicon (ps) samples were determined from the atomic force microscopy (afm) measurements. the surface mean root square roughness (σ rms) changes as function of porosity were studied, and the influence of etching time on porosity and roughness was studied too. u...

Journal: :Journal of nanoscience and nanotechnology 2008
Sharon M King Shweta Chaure Satheesh Krishnamurthy Werner J Blau Alan Colli Andrea C Ferrari

The optical properties of four different silicon nanowire structures were investigated. Two of the samples consisted of spheres of nanocrystalline silicon en-capsulated by silicon oxide nanowires, with other two consisting of crystalline silicon nanowires coated by silicon oxide shells. The nanostructures produced by oxide assisted growth consisted of spheres of crystalline silicon encapsulated...

2015

Since 1987, a commercial silicon compiler has been used in class projects by the majority of students. This paper describes the course philosophy and content.C-to-Silicon Compiler is the first high. Cadence C-to-Silicon Compiler high-level synthesis enables hardware. 1689 1213 SADMPDF.A silicon compiler is a software system that takes a users specifications and automatically generates an integr...

2015
In Hyuk Son Jong Hwan Park Soonchul Kwon Seongyong Park Mark H Rümmeli Alicja Bachmatiuk Hyun Jae Song Junhwan Ku Jang Wook Choi Jae-Man Choi Seok-Gwang Doo Hyuk Chang

Silicon is receiving discernable attention as an active material for next generation lithium-ion battery anodes because of its unparalleled gravimetric capacity. However, the large volume change of silicon over charge-discharge cycles weakens its competitiveness in the volumetric energy density and cycle life. Here we report direct graphene growth over silicon nanoparticles without silicon carb...

2004
Naofumi Ohtsu Tetsuya Ashino Katsuhiko Asami

Silicon contamination adsorbed on pure Titanium plate during soaking test in Hanks’ balanced saline solution (HBSS) and distilled water was investigated. Amounts of silicon eluted from various materials of vessels were determined by inductively coupled plasma atomic emission spectrometry (ICP-AES). The amounts of silicon deposited on the surface of pure titanium plates after soaking were evalua...

2015
Ravin Jugdaohsingh Katharina Kessler Barbara Messner Martin Stoiber Liliana D Pedro Heinrich Schima Günther Laufer Jonathan J Powell David Bernhard

Background: Dietary silicon has been positively linked with vascular health and protection against atherosclerotic plaque formation, but the mechanism of action is unclear. Objectives:We investigated the effect of dietary silicon on 1) serum and aorta silicon concentrations, 2) the development of aortic lesions and serum lipid concentrations, and 3) the structural and biomechanic properties of ...

Journal: :The Journal of nutrition 2015
Ravin Jugdaohsingh Katharina Kessler Barbara Messner Martin Stoiber Liliana D Pedro Heinrich Schima Günther Laufer Jonathan J Powell David Bernhard

BACKGROUND Dietary silicon has been positively linked with vascular health and protection against atherosclerotic plaque formation, but the mechanism of action is unclear. OBJECTIVES We investigated the effect of dietary silicon on 1) serum and aorta silicon concentrations, 2) the development of aortic lesions and serum lipid concentrations, and 3) the structural and biomechanic properties of...

Journal: :Optics express 2013
Qing Li Ali A Eftekhar Majid Sodagar Zhixuan Xia Amir H Atabaki Ali Adibi

We demonstrate a vertical integration of high-Q silicon nitride microresonators into the silicon-on-insulator platform for applications at the telecommunication wavelengths. Low-loss silicon nitride films with a thickness of 400 nm are successfully grown, enabling compact silicon nitride microresonators with ultra-high intrinsic Qs (~ 6 × 10(6) for 60 μm radius and ~ 2 × 10(7) for 240 μm radius...

1999

In this proposal we seek to establish a porous silicon based etching process in the WTC microfabrication laboratory. The new process will allow us to etch high aspect ratio holes through a wafer. Holes like these are important for decreasing the dead volume of connections between micro and macro systems and for increasing the complexity of micro-fluidic systems. At the present time, the minimum...

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