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浏览/检索结果: 共6条，第1-6条 帮助 限定条件 内容类型：会议论文     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Program topic: Combustion technologies examination of changing char reactivity with isothermal oxy-fuel combustion by a simplified atomistic simulation 会议论文 作者:  Xin, Haihui;  Wang, Chang'an;  Wang, Deming;  Mathews, Jonathan P. 收藏  |  浏览/下载：15/0  |  提交时间：2019/12/02 Atomistic simulations  Coal chars  Combustion technology  Number of carbon atoms  Oxyfuel combustion  Oxygen diffusion  Physical features  Reference material   Study on the difference between turfy soil and normal peat soil in China (EI CONFERENCE) 会议论文 2011 International Conference on Vibration, Structural Engineering and Measurement, ICVSEM2011, October 21, 2011 - October 23, 2011, Shanghai, China Yan L.; Nie L.; Xu K.; Su Z. D. 收藏  |  浏览/下载：29/0  |  提交时间：2013/03/25 As the special soil  turfy soil and peat soil in China contained some similar properties with high void ratio  high water content  high organic content  etc. But turfy soil also had properties which difference from peat soil. In this paper  based on the formation of the cause and geological environment and geomorphologic characteristics of geological in the quaternary  took the typical and widespread turfy soil and peat soil regions for example  systematically discussed the material composition and macroscopic and microcosmic structural features  put further research on the physical chemistry mechanical characteristics. Then the come to the conclusion that the essential reason for difference between turfy soil and peat soil were decomposition degree and organic content. The result that worse engineering properties such as higher the moisture content  porosity  compressibility  internal cohesion and the lower specific weight  consolidation coefficient and permeability were due to the lower decomposition degree and higher organic content of turfy soil than peat soil. It can provide reference to the practical projects of turfy soil to distinguish peat soil according to this characteristic. (2012) Trans Tech Publications.   Dynamic optimum design and analysis of cam wave generator for harmonic gear drive (EI CONFERENCE) 会议论文 2011 International Conference on Information and Automation, ICIA 2011, June 6, 2011 - June 8, 2011, Shenzhen, China Xiao Q.; Han X.; Jia H. 收藏  |  浏览/下载：15/0  |  提交时间：2013/03/25 Mathematical models of structural optimization were established for the cam wave generator  then a conceptual model  by integrally taking its static and dynamic performance into consideration  which satisfied the model acted by four concentrated forces  while the dynamic optimum design was carried out. The topology optimization of the cam wave generator was performed based on artificial material density method  was obtained. And the size optimization of the cam wave generator was also executed based on the zero-order method in software Ansys after setting up its parameterized model. The optimized results indicate that its final volume declines to 1284.217mm3 from its 1397.830mm3  which reduced by 42.18% than the original volume of cam (2221.224mm3). Simultaneously  the static analysis and modal analysis were implemented  and the results show that the static and dynamic performance complies with the design requirements  proving that the results of dynamic optimum design are reasonable. The optimized results in paper are realizable in engineering. And the study method provides not only a reference to decreasing design mass and lowering inertia of the cam wave generator  but also an important basis of lightweight design of harmonic gear drive. 2011 IEEE.   Effect of ECAP on the electrochemical behavior of chromium bronze 会议论文 作者:  Zhang, Ya Ni;  Xu, Chang Zheng;  Zheng, Mao Sheng;  Zhu, Jie Wu 收藏  |  浏览/下载：5/0  |  提交时间：2019/12/10 Chromium-bronze  Chromiun  Corrosion layers  Corrosion potentials  ECAP  Electrochemical behaviors  NaCl solution  Reference material  Three electrode cells  Ultra fine grain  X-Plane   Preparation and certification of Re-Os dating reference materials: Molybdenites HLP and JDC 会议论文 作者:  Du, AD;  Wu, SQ;  Sun, DZ;  Wang, SX;  Qu, WJ 收藏  |  浏览/下载：2/0  |  提交时间：2018/11/09 molybdenite, rheniurn, osmium, Re-Os dating, isotope dilution, certified reference material   Homogeneity evaluation of Chinese sugar carbon (CSC) standard for AMS C-14 measurement (CPCI-S收录) 会议论文 NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS 作者:  Xu, Xiaomei[1];  Shen, Chengde[2];  Stills, Aubrey K.[1] 收藏  |  浏览/下载：3/0  |  提交时间：2019/04/15 Chinese sugar carbon  Chinese sucrose charcoal  Consensus value  Radiocarbon reference material  C-14  AMS