Weike Su | Semantic Scholar
9/5/2005 · Fast, solvent-free asymmetric alkynylation of prochiral sp3 C–H bonds in a ball mill for the preparation of optically active tetrahydroisoquinoline derivatives Jingbo Yu , Z. Li , Kanyan Jia , Zhijiang Jiang , Menglu Liu , Weike Su
Zhi-Jiang JIANG | PhD Candidate | M.Sc. | Zhejiang
Zhi-Jiang Jiang Wei-Ke Su Construction of 3-vinylindoles (3) and β,β-diindolyl propionates (4) through solvent-free C-H functionalization has been explored under high-speed ball-milling conditions.
Rhodium(III)‐Catalyzed Amidation of Unactivated C(sp3) H
Nitrogenation by direct functionalization of C H bonds represents an important strategy for constructing C N bonds. Rhodium(III)‐catalyzed direct amidation of unactivated C(sp 3) H bonds is rare, especially under mild reaction conditions. Herein, a broad scope of C(sp 3) H bonds are amidated under rhodium catalysis in high efficiency using 3‐substituted 1,4,2‐dioxazol‐5‐ones as the
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General issues of FEM in backward ball spinning of thin
Corresponding author: JIANG Shu-yong; Tel: +86-451-82589468; E-mail: [email protected] JIANG Shu-yong, et al/Trans. Nonferrous Met. Soc. China 17(2007) 795 3 Basis of finite element formulation For rigid-plastic materials, the function (p is constructed as follows:
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Finite element simulation of ball spinning of NiTi shape
Mar 01, · The feed ratio of the balls is 0.8 mm/r, and the diameter of balls is 10 mm. The tubular blank with a length of 15 mm, an inner diameter of 10 mm and a wall thickness of 1 mm is used as finite element model. The wall thickness reduction per pass is 0.3 mm. The stroke of the ball is determined as 7.8 mm.
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Unexpected Solvent-Free Cycloadditions of 1,3
Aug 19, · Synthesis of Molecular Nanostructures by Multicomponent Condensation Reactions in a Ball Mill. Journal of the American Chemical Society , 131 (9) , 3154-3155. DOI: 10.1021/ja809279s.
Two-Dimensional Material-Based Heterostructures for
The successful development of 2D material-based heterostructures for rechargeable batteries has attracted worldwide attention due to their unique physical and chemical properties. In this review, Hu et al. summarize the synthetic methods, specific applications, and future research opportunities for 2D material-based heterostructures for advanced rechargeable batteries.
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High-Energy Ball Milling | ScienceDirect
It involves the use of a high energy ball mill to initiate chemical reactions and structural changes. High energy ball milling: Mechanochemical processing of nanopowders reviews the latest techniques in mechanochemistry and how they can be applied to the synthesis and processing of various high-tech materials.
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N- versus O-Arylation of Aminoalcohols: Orthogonal
Two complementary protocols for copper-catalyzed arylation of aminoalcohols were developed. Selective N-arylation was accomplished at room temperature using 2-isobutyrylcyclohexanone (a β-diketone) as supporting ligand, while selective O-arylation required the use of 3,4,7,8-tetramethylphenanthroline at 80−110 °C. Systematic examination of the reaction scope revealed that high levels of
Enhanced ferroelectricity in relaxor [equation] ceramics
10/24/ · Acknowledgements. This work was supported by the National Key Research and Development Program of China (Grant No. 2017YFA0403502), the Joint Funds of the National Natural Science Foundation of China and the Chinese Academy of Sciences’ Large-Scale Scientific Facility (Grant No. U1832115), and Key Research Program of Frontier Sciences, CAS (QYZDB-SSW-SLH015).
Different Types Grinding Mills - Jaw Crusher / Ball Mill
Grinding Mills And Their Types Ispatguru . Apr 09 different grinding machines are usually named as mills for example rod mills ball mills and attrition mills because of the name verb milling is also been used as a synonym for grinding milling sometimes also known as fine grinding pulverizing or comminution is the process of reducing materials to a powder of fine or very fine size
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Suppressing Heavy Metal Leaching through Ball Milling of
Ball milling is investigated as a method of reducing the leaching concentration (often termed stablilization) of heavy metals in municipal solid waste incineration (MSWI) fly ash. Three heavy metals (Cu, Cr, Pb) loose much of their solubility in leachate by treating fly ash in a planetary ball mill, in which collisions between balls and fly ash drive various physical processes, as well as
PDF - aim.shu.edu.cn
Key words: Tungsten carbide, Meso-scale milling, Polycrystalline diamond (PCD) end mill, Cutting force, Surface roughness, Tool wear. Cite this article. Wei Zhao, Asif Iqbal, Ding Fang, Ning He, Qi Yang. Experimental study on the meso-scale milling of tungsten carbide WC-17.5Co with PCD end mills[J]. Advances in Manufacturing, , 8(2): 230
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