نتایج جستجو برای: نانوذرات sic

تعداد نتایج: 20422  

2015
Hesham A. Bakarman

Multiple User Interference (MUI) considers the primary problem in Optical Code-Division Multiple Access (OCDMA), which resulting from the overlapping among the users. In this article we aim to mitigate this problem by studying an interference cancellation scheme called successive interference cancellation (SIC) scheme. This scheme will be tested on two different detection schemes, spectral ampl...

Journal: :British journal of industrial medicine 1993
J Bruch B Rehn W Song E Gono W Malkusch

Silicon carbide (SiC) dust and other dusts for comparison were injected intratracheally at a high dose (50 mg) into rats and the response of the lungs and the lymph nodes was studied after an appropriate experimental period. The indices studied were: histological changes in the lung and lymph nodes, organ weights, the formation of collagenous fibres, and the appearance of quartz typical areas. ...

Journal: :The Journal of chemical physics 2006
Oleg A Vydrov Gustavo E Scuseria John P Perdew Adrienn Ruzsinszky Gábor I Csonka

Semilocal density functional approximations (DFAs) for the exchange-correlation energy suffer from self-interaction error, which is believed to be the cause of many of the failures of common DFAs, such as poor description of charge transfer and transition states of chemical reactions. The standard self-interaction correction (SIC) of Perdew and Zunger mends some of these failures but spoils suc...

2008
Leon M. Tolbert Hui Zhang Burak Ozpineci Madhu S. Chinthavali

The advantages that silicon carbide (SiC) based power electronic devices offer are being realized by using prototype or experimental devices in many different power applications ranging from medium voltage to high voltage or for high temperature or high switching frequency applications. The main advantages of using SiC-based devices are reduced thermal management requirements and smaller passiv...

Journal: :J. Electronic Testing 1996
Ioannis Voyiatzis Antonis M. Paschalis Dimitris Nikolos Constantin Halatsis

Single Input Change (SIC) testing has been proposed for robust path delay fault testing. In this letter a new Built-In Self Test (BIST) method for SIC vector generation is presented. The proposed method compares favourably to the previously proposed methods for SIC pattern generation with respect to hardware overhead and time required for completion of the test.

Journal: :Journal of nanoscience and nanotechnology 2010
Ryongjin Kim Weiping Qin Guodong Wei Goufeng Wang Lili Wang Daisheng Zhang Kezhi Zheng

A new simple and cheap method to grow large scale SiC-SiO2 nanocables on catalyzed Si substrate directly is presented. The method is based on the thermal decomposition of methanol. The grown nanocables consisted of crystalline 3C-SiC and amorphous SiO2. A simple etching and oxidation process was used to analyze the contribution of SiC and SiO2 components to photoluminescence.

Journal: :Optics letters 2013
Xiyuan Lu Jonathan Y Lee Philip X-L Feng Qiang Lin

We demonstrate a silicon carbide (SiC) microdisk resonator with an intrinsic optical quality factor of 6.19×10(3), fabricated on the 3C-SiC-on-Si platform. We characterize the temperature dependence of the cavity resonance and obtain a thermo-optic coefficient of 2.92×10(-5)/K for 3C-SiC. Our simulations show that the device exhibits great potential for cavity optomechanical applications.

Journal: :Chemical communications 2015
Yingdan Jia Yanhui Wang Liang Dong Junjie Huang Yan Zhang Jing Su Jianbing Zang

A novel noble metal-free catalyst, with nitrogen-doped amorphous carbon and titanium nitride particles supported on SiC (NC-TiN/SiC), was synthesized. The NC-TiN/SiC catalyst exhibited excellent oxygen reduction reaction activities as well as superior stability and methanol tolerance. The catalytic activities were attributed to the synergistic effect of TiN and NC.

2011
Abubakr M Idris Rafea EE Elgorashe

BACKGROUND Sequential injection chromatography (SIC) is a new alternative separation technology. It has some advantages over high performance liquid chromatography (HPLC) regarding simplicity, inexpensiveness, portability, ease of use, maintenance requirement and operation time. In contrast, SIC has had suffered from some limitations. RESULTS The current work involves four achievements. (a) O...

2013
Chul Huh Bong Kyu Kim Byoung-Jun Park Eun-Hye Jang Sang-Hyeob Kim

We report an enhancement in light emission efficiency of Si nanocrystal (NC) light-emitting diodes (LEDs) by employing 5.5 periods of SiCN/SiC superlattices (SLs). SiCN and SiC layers in SiCN/SiC SLs were designed by considering the optical bandgap to induce the uniform electron sheet parallel to the SL planes. The electrical property of Si NC LED with SiCN/SiC SLs was improved. In addition, li...

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