共搜索到2012条信息，每页显示10条信息，共202页。用时：0小时0分0秒600毫秒
......
aluminate liquor, the ultrasonic induced hydroxyl free radicals was detected by electron spin resonance(ESR) spectroscopy using DMPO (5, 5-dimethyl-1-pyrroline-N-oxide) as a spin trap. The relationship... is longer than 10min. Key words: sodium aluminate liquor; ·OH free radicals; ultrasound; electron spin resonance 用超声波处理铝酸钠溶液可以使其种分反应速率提高, 分解时间缩短, 并使种分产品氢氧化铝晶体中2μm以下的粒子数增加[1-3], 但对超声强化铝酸钠溶液种分过......
Trans. Nonferrous Met. Soc. China 22(2012) 3003-3011 Structural and optical properties of nano-spin coated sol-gel porous TiO2 films M. M. El-NAHASS1, M. H. ALI2, A. El-DENGLAWEY3,4 1. Physics... films, 174, 195, and 229 nm, were deposited onto quartz substrates by spin coated sol-gel method. The prepared films were characterized by nano-crystalline structure with different crystallite sizes......
......
Effects of Annealing Temperature on the Structural,Optical,and Electrical Properties of ZnO Thin Films Grown on n-Si<100>Substrates by the Sol–Gel Spin Coating MethodAniruddh Bahadur Yadav...">The effects of annealing temperature on the sol–gel-derived ZnO thin films deposited on n-Sh100 i substrates by sol–gel spin coating method have been studied in this paper.The structural,optical......
potential and the knock intensity were analyzed after the engine was improved into Atkinson cycle. Firstly, three means were studied and modeled. (1) Delay intake valve timing by variable valve timing (VVT); (2) Increase intake duration to 350° with delaying intake valve timing by VVT; (3) Add geometry compress ratio from 10 to 12 on top of the second method. The results demonstrate that the third......
; 文章编号:1672-7207(2015)08-2850-07 Lateral carrying characteristics of new externally pressurized spherical air bearings WANG Fusheng1, BAO Gang2, ZHANG Lin1 (1. School of Mechatronics Engineering... pressurized spherical air bearing is affected by the axial force and lateral force at the same time. It is necessary to study the lateral carrying characteristics of bearings. A CFD-based analysis was performed......
; 文章编号:1672-7207(2008)02-0405-05 Analysis of critical load for lateral buckling of beam WEN Ying, ZENG Qing-yuan (School of Civil and Architectural Engineering, Central South University, Changsha 410075, China) Abstract: The physical meaning of lateral flexural-torsional equilibrium equations was simple that the external bending moments and twisting forces should balance......
magnetization; curie temperature; spin reorientation; [全文内容正在添加中] ......
: The traditional stability analysis method of geogrid reinforced slopes does not consider the effect of lateral swelling, so it is not applicable to reinforced expansive soil slopes. This paper reports a new stability analysis method for geogrid reinforced expansive soil slopes. The additional pullout force of the free zone due to the lateral swelling and the anti-pullout safety factor of each geogrid......
