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Preparation of electrolytic copper powders with high current efficiency enhanced by super gravity field and its mechanism WANG Ming-yong(王明涌)1, 2, WANG Zhi(王 志)1, GUO Zhan-cheng(郭占成)1, 3 1... of Ecological and Recycle Metallurgy, University of Science and Technology Beijing, Beijing 100083, China Received 6 July 2009; accepted 18 January 2010 Abstract: Super gravity field was employed......
Trans. Nonferrous Met. Soc. China 22(2012) 958-963 Si purification by solidification of Al-Si melt with super gravity LI Jing-wei1, GUO Zhan-cheng1, TANG Hui-qing1, WANG Zhi2, SUN Shi-tong1 1. State... silicon by solidification of hypereutectic Al-Si melt with super gravity as an intensified separation way was carried out. The results indicate that the refined silicon grains are successfully enriched......
electrodeposition,the morphology and mechanical properties of deposits were studied in a super gravity field.Predictions in a microgravity field were also presented based on the obtained experimental... in the super gravity field has finer grain sizes and denser and smoother surfaces.The roughness reduces from 48.3 to 4.9 nm with the increase of the G value from 10-4 to 354.Meanwhile,mechanical tests......
Ti对Super Dyma镀锌合金凝固组织的影响李凯良,涂浩,刘亚,吴长军,苏旭平,王建华常州大学江苏省光伏科学与工程协同创新中心江苏省材料表面科学与技术重点实验室摘 要:以Al-10Ti中间合金的形式将Ti元素加入到Super Dyma镀锌合金中,制备了Ti含量分别为0.1%,0.3%和0.5%(质量分数)的Super Dyma镀锌合金金相样品,采用扫描电子显微镜(SEM)研究了Ti元素添加量对Super Dyma镀锌合金凝固组织的影响,利用能谱仪(EDS)分析了Ti元素在这些镀锌合金组织中的分布规律,使用X射线衍射(XRD)分析了不同Ti含量的Super Dyma镀锌合金中的相组成,采用差热分析法(DTA)测定了不同Ti含量的Super Dyma镀锌合金中富铝相的开始凝固温度.实验结果表明......
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基于Super Map的矿图数字化和管理系统 李化敏1,熊祖强1 (1.焦作工学院) 摘要:矿图是管理矿山企业和指导生产的重要依据,只有将矿图变成数字信息即矿图数字化,才能顺应新时期下信息化矿山建设的需要,才能为矿山企业提供快速,准确的决策依据.本文简略地介绍了基于Super Map的矿图数字化和管理系统的主要结构和功能. 关键词:Super Map 矿图数字化 管理系统; [全文内容正在添加中] ......
Trans. Nonferrous Met. Soc. China 20(2010) s981-s987 Semi-solid gravity sand casting using gas induced semi-solid process T. CHUCHEEP1, R. BURAPA3, S. JANUDOM1, S. WISUTMETHANGOON2, J..., such as gravity sand casting, has not been widely studied even though it may help reduce porosity defects and offer a better casting yield. A semi-solid gravity sand casting process using the Gas......
J. Cent. South Univ. (2016) 23: 1767-1777 DOI: 10.1007/s11771-016-3230-x Joint inversion of gravity and multiple components of tensor gravity data LU Guang-yin(鲁光银)1, CAO Shu-jin(曹书锦)1, 2, 3, ZHU Zi.... The results show that the algorithm proposed is feasible and effective. Key words: hyper-parameter regularization; full gravity gradient tensor; preconditioned matrix; Occam’s inversion; focusing......
A Study on Medium Temperature Chemical Vapor Deposition (MT-CVD) Technology and Super Coating Materials LI Jian-ping1,ZENG Xiang-cai1,MA Wen-cun1,GAO Jian1 (1.Chengdu Tool Institute, Chengdu 610051... gas flow quantity on structures and properties of TiCN coating layers were investigated. The super coating mechanis mand structures were analyzed. The new coating processing parameters and properties......
快速super twisting算法及其在飞翼布局无人机姿态控制上的应用谭健1,周洲1,祝小平2,许晓平11. 西北工业大学无人机特种技术重点实验室2. 西北工业大学无人机研究所摘 要:通过在super twisting算法中增加线性项,提出一种快速super twisting算法,并采用Lyapunov方法证明了受扰快速super twisting算法具有比受扰super twisting算法更优良的收敛特性.将该算法应用于存在干扰的飞翼布局无人机姿态控制,设计快速super twisting观测器以实现对干扰的快速估计和补偿.仿真结果表明,在相同的控制器参数下,相比super twisting观测器,快速super twisting观测器的收敛速度更快,可提高姿态控制系统的鲁棒性.关......