共搜索到8552条信息,每页显示10条信息,共856页。用时:0小时0分0秒953毫秒
......
J. Cent. South Univ. (2021) 28: 747-759 DOI: https://doi.org/10.1007/s11771-021-4642-9 Moving target detection based on improved ghost suppression and adaptive visual background extraction LIU Ling... background extraction algorithm (ViBe) uses the first frame image to initialize the background model, which can easily introduce the "ghost". Because ViBe uses the fixed segmentation threshold......
Situation and Developing Trend of Rare-Earth Countercurrent Extraction Processes Control 杨辉1,柴天佑1 (1.Research Center of Automation, Northeastern University,Shenyang,110004,China;2.School of Electronics and Electrical Engineering,East China Jiaotong University,Nanchang,330013,China) Abstract:On the basis of the description of the rare-earth countercurrent extraction process, the on-line......
Alkaline extraction characteristics of steelmaking slag batch in NH4Cl solution under environmental pressureZHANG Hui-ning(张慧宁)1, 2, XU An-jun(徐安军)1, 2, HE Dong-feng(贺东风)1, 2, CUI Jian(崔健)3(1. State... Beijing,Beijing 100083, China;3. Ningbo Iron and Steel Co, Ltd., Ningbo 315000, China)Abstract:In order to obtain better carbonation effect, extraction behavior of slag batch is necessary to study......
Solvent extraction of copper and ammonia from ammoniacal solutions using sterically hindered β-diketone HU Hui-ping(胡慧萍), LIU Chun-xuan(刘春轩), HAN Xue-tao(韩雪涛), LIANG Qi-wen(梁啟文), CHEN Qi-yuan(陈启元) School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China Received 13 November 2009; accepted 2 March 2010 Abstract: Extraction of copper and ammonia from Cu2......
STUDY ON GREY FORECASTING MODEL OF COPPER EXTRACTION RATE WITH BIOLEACHING OF PRIMARY SULFIDE ORE H.C. Jiang1,B.H. Yang1,A.X. Wu2,Y. Xi3,X.S. Chen1 (1.School of Resources & Safety, Central South..., China) Abstract:A model GM (grey model) (1,1) for forecasting the rate of copper extraction during the bioleaching of primary sulphide ore was established on the basis of the mathematical theory......
NaOH溶液浓度2 mol/L,碱溶液与多金属料液固比为10:1,浸出时间120 min条件下,考察浸出温度对金属浸出率的影响,实验结果如图2所示. 图2 浸出温度对金属浸出率的影响 Fig. 2 Effect of leaching temperature on leaching efficiency of metals 由图2可知,随着浸出温度升高,Al的浸出率变化不大... on leaching efficiency of metals 由图3可以看出,随着浸出时间增加,Al的浸出率变化基本保持不变,浸出率均在90%以上;在考察的时间范围内,Zn的浸出率随着时间延长而不断增加,当浸出时间较短时,Zn的浸出率较低,在浸出时间小于30 min时,其浸出率低于15%,Pb,Sn,Cu浸出率较低,基本不溶解.这说明可以在浸出时间较短的范围内,将Al从电路板中选择性分离出来,如图3所示,在反应......
......
J. Cent. South Univ. (2016) 23: 570-580 DOI: 10.1007/s11771-016-3104-2 Design and application of electric oil pump in automatic transmission for efficiency improvement and start–stop function LIU...: For the purpose of improving efficiency and realizing start–stop function, an electric oil pump (EOP) is integrated into an 8-speed automatic transmission (AT). A mathematical model is built......
%. The efficiency of extraction of boron (EEB) of the slow cooled boron-rich slag decreased from 86.46% to 59.52% synchronously. Na2CO3 had obviously negative effect on melting separation of the composite pellet... efficiency [10]. However, the extraction property of boron element of the boron-rich slag is the most important in the utilization of ludwigite. The iron and slag melting separation of the ludwigite/coal......