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202篇 您的检索式:作者名="Aleksandrova"
    题名 作者 年代 出处 被引量
1煤矸石中有价关键金属活化提取研究进展显示文摘煤矸石是煤炭开采洗选过程中的固体废弃物,是我国产储量最大的工业固废之一,回收利用其中潜在的矿产资源对实现我国绿色矿山建设及“双碳”目标达成意义重大。通过综合分析国内外现阶段煤矸石提取有价金属相关技术,系统阐述了“单一/复合活化-碱熔/酸浸”联合强化铝、铁等有价组分高效富集研究进展,重点分析了锂、稀土等微量关键金属的赋存状态及提取方法。针对煤矸石组分复杂且波动范围大、有价金属含量低等问题,可基于矿物特性采用相应选矿技术初步富集载体矿物,提升有价金属品位,进而开展铝、铁、锂、稀土等多种元素协同提取,实现煤矸石高附加值利用。康超 乔金鹏 杨胜超 彭超 付元鹏 刘斌 刘建荣 Tatiana Aleksandrova 段晨龙 2023化工学报2023,74,7:3
2Optimization of the Dressing Parameters in Cylindrical Grinding Based on a Generalized Utility Function显示文摘The existing studies, concerning the dressing process, focus on the major influence of the dressing conditions on the grinding response variables. However, the choice of the dressing conditions is often made, based on the experience of the qualified staff or using data from reference books. The optimal dressing parameters, which are only valid for the particular methods and dressing and grinding conditions, are also used. The paper presents a methodology for optimization of the dressing parameters in cylindrical grinding. The generalized utility function has been chosen as an optimization parameter. It is a complex indicator determining the economic, dynamic and manufacturing characteristics of the grinding process. The developed methodology is implemented for the dressing of aluminium oxide grinding wheels by using experimental diamond roller dressers with different grit sizes made of medium- and high-strength synthetic diamonds type АС32 and АС80. To solve the optimization problem, a model of the generalized utility function is created which reflects the complex impact of dressing parameters. The model is built based on the results from the conducted complex study and modeling of the grinding wheel lifetime, cutting ability, production rate and cutting forces during grinding. They are closely related to the dressing conditions(dressing speed ratio, radial in-feed of the diamond roller dresser and dress-out time), the diamond roller dresser grit size/grinding wheel grit size ratio, the type of synthetic diamonds and the direction of dressing. Some dressing parameters are determined for which the generalized utility function has a maximum and which guarantee an optimum combination of the following: the lifetime and cutting ability of the abrasive wheels, the tangential cutting force magnitude and the production rate of the grinding process. The results obtained prove the possibility of control and optimization of grinding by selecting particular dressing parameters.ALEKSANDROVA Irina 2016Chinese Journal of Mechanical Engineering2016,29,1:2
3Reaction of nitrofurazans with sulfur nucleophiles显示文摘Sheremeteev A B Mantseva E V Aleksandrova N S 1995Mendeleev Communication1995,,1:1
4Evaluation of progenitor cell cultures from human embryos for neurotransplantation显示文摘 Marey MV Aleksandrova MA 2002Dev Brain Res2002,134,:1
5Total and high-molecular weight adiponectin and risk of colorectal cancer: the European Prospective Investigation into Cancer and Nutrition Study显示文摘Krasimira Aleksandrova Heiner Boeing Mazda Jenab H.Bas Bueno-de-Mesquita Eugene Jansen Fr?nzel J.B. van Duijnhoven Veronika Fedirko Sabina Rinaldi Isabelle Romieu Elio Riboli Dora Romaguera Sabine Westphal Kim Overvad Anne Tj?nneland Marie Christine Boutr 2012Carcinogenesis2012,,6:1
6Permanent venovenous hemofihration in the complex therapy of se- vere acute pancreatitis显示文摘Aleksandrova IV I1 inskii ME Rei SI 2011Anesteziol Reanimatol2011,,3:1
7Characteristics of human neural stem cells in vitro and after transplantation into rat brain 显示文摘Aleksandrova MA Podgornyi OV Marei MV 2005Bull Exp Biol Med2005,139,1:1
8Brain natriuretic peptide for early di- agnosis of chronic heart failure in patients with preserved left ventricular ejection fraction显示文摘Aleksandrova EB Sidorenko BA 2012Kardiologiia2012,52,11:1
9Clinical value of soluble adhesion molecules in systemic scleroderma显示文摘Alekperov RT Timchenko AV Aleksandrova EN 2003Klin Med(Mosk)2003,81,10:1
10Sequence of venous blood flow alterations in patients after recently endured acute thrombosis of lower-limb deep veins based on the findings of ultrasonographic duplex scanning显示文摘Tarkovski AA Zudin AM Aleksandrova ES 2009Angiol Sosud Khir2009,15,2:1
11Abdominal obesity, weight gain during adulthood and risk of liver and biliary tract cancer in a European cohort显示文摘Sabrina Schlesinger Krasimira Aleksandrova Tobias Pischon Veronika Fedirko Mazda Jenab Elisabeth Trepo Paolo Boffetta Christina C. Dahm Kim Overvad Anne Tj?nneland Jytte Halkj?r Guy Fagherazzi Marie‐Christine Boutron‐Ruault Franck Carbonnel Rudolf Kaaks A 2012Int J Cancer2012,,3:1
12Elastic wave propagation in block medium under impulse loading显示文摘ALEKSANDROVA N I 2003Journal of Mining Science2003,39,6:1
13A new strategy for the functiona- ization of aminofurazans: The synthesis of 3-R-furazan-4-yl) dichloroimines显示文摘Sheremetev Aleksei B Aleksandrova Natal'ya S irudin Igor L 2003Mendeleev 2ommun2003,13,:1
14Modeling of wave propagation in block media显示文摘ALEKSANDROVA N I SHER E N 2004Journal of Mining Science2004,40,6:1
15Effects of body positions on respiratory muscle activation during maximal inspiratory maneuvers显示文摘Segizbaeva MO Pogodin MA Aleksandrova NP 2013Adv Exp Med Biol2013,756,:1
16Chronic heart failure in patients with arterialhypertension and ischemic heart desease: age and gender charac- teristics显示文摘Aleksandrova E B 2013Kardiologiia2013,53,7:1
17Characteristics of human neural stem cells in vitro and after transplantation into rat brain 显示文摘Aleksandrova MA Podgornyi OV Marei MV 2005Bull Exp Biol Med2005,139,1:1
18Metabolic syndrome and risks of colon and rectal cancer:theEuropean prospective investigation into cancer and nutrition study显示文摘Aleksandrova K Boeing H Jenab M 2011Cancer Prey ReS(Phila)2011,4,11:1
19Mathematical models for filling polymer shells with a real gas fuel显示文摘Aleksandrova I V Belolipetskiy A A 1999Laser and Particle Beams1999,17,4:1
20Development of human brain neural/progenitor cells transplantation into the brain of adult rats显示文摘Aleksandrova MA Poltavtseva RA Saburina ZN 2003Morfologlia2003,123,3:1
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