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Effect of fluidity on the manufacturing of open cell magnesium alloy foams

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Journal of Magnesium and Alloys 2016年第1期4卷 1-7页

作者： Xue-Zheng yue Koichi Kitazono Xue-Jie yue bo-Young Hur Graduate School of System Design Tokyo Metropolitan UniversityTokyo 191-0065Japan Department of Architectural Engineering Xinxiang UniversityXinxiang 453000China Gyeongsang National University 501Jinju-daeroJinjuGyeongnamRepublic of Korea

The effect of fluidity on open cell AZ31 metal foam samples fabricated using a solid state space holder method was *** was fabricated by plaster powder and perlite *** were sieved which compacted layer by layer in casting *** which made by granules were then heated to 200℃,300℃,400℃,500℃ under a rough(mechanical)vacuum before pressure infiltration with AZ31 Mg *** were infiltrated using vacuum pressure values range of 8-14 *** conditions of pressure and temperature were performed in order to get different fluidity on manufacturer of open cell AZ31 metal foam specimen *** is found that the fluidity plays significant role to determine the open cell AZ31 alloy *** fluidity is affected by preheat temperature and infiltration vacuum *** macrostructure,the distribution of the pores,microstructure,infiltration length,and porosity were investigated.

关键词： Magnesium alloy Fluidity Open cell Vacuum

Synthesis and Properties of Magnetic Nanoparticles

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Journal of Materials Science & Technology 2006年第5期22卷 659-663页

作者： Sixin LI Jiancheng ZHANG yue SHEN bo NI Jingang ZHANG College of Materials Science and Engineering Shanghai University Shanghai 200072China

The uniform mesoporous SBA-15 consisting of SiO2 with long-range channels Offers an excellent host material to synthesize or assemble the magnetic nanocomposites, such as Fe, Ni. In this paper, highly dispersed and uniform iron nanoparticles were incorporated into the pore channels of SBA-15 through a newly developed strategy in which some kinds of coupling agents were used to entrap the nanoparticles into the silica framework. The X-ray diffraction （XRD）, fourier transmission infrared spectroscopy （FTIR）, high-resolution transmission electronic microscopy （HRTEM） and energy dispersive X-ray spectroscopy （EDX） were performed to further identify the successful incorporation and grafting of iron. Compared with other ordinary non-assembled magnetic nanoparticles, the assembled Fe nanoparticles with the diameter even in the size range of 5～6 nm still have better magnetic properties.

关键词： Mesoporous materials Nanoparticle Magnetic properties

Structural Synthesis of Parallel Mechanisms with High Rotational Capability

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Chinese Journal of Mechanical Engineering 2018年第4期31卷 73-83页

作者： Xiao-Dong Jin yue-Fa Fang Sheng Guo Hai-bo Qu School of Mechanical Electronic and Control EngineeringBeijing

Most parallel mechanisms(PMs) encountered today have a common disadvantage, i.e., their low rotational *** order to develop PMs with high rotational capability, a family of novel manipulators with one or two dimensional rotations is proposed. The planar one-rotational one-translational(1 R1 T) and one-rotational two-translational(1 R2 T)PMs evolved from the crank-and-rocker mechanism(CRM) are presented by means of Lie group theory. A spatial 2 R1 T PM and a 2 R parallel moving platform with bifurcated large-angle rotations are proposed by orthogonal combination of the RRRR limbs. According to the product principle of the displacement group theory, a hybrid 2 R3 T mechanism in possession of bifurcated motion is obtained by connecting the 2 R parallel moving platform with a parallel part, which is constructed by four 3 T1 R kinematic chains. The presented manipulators possess high rotational capability. The proposed research enriches the family of spatial mechanisms and the construction method provides an instruction to design more complex mechanisms.

关键词： Parallel mechanism Rotational capability Lie group theory Bifurcated motion Hybrid mechanism

Rational SU(3) Gaudin Model

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Communications in Theoretical Physics 2001年第2期36卷 139-144页

作者： Cao Jun-Peng Hou bo-Yu yue Rui-Hong Institute of Modern Physics Northwest University Xi'an 710069 China

The Hamiltonians of the SU(3) Gaudin model are constructed based on the nonrelativistic limit of the SU(3) chain. After the quantum determinant being well defined, the eigenvectors and eigenvalues of the Hamiltonians of the SU(3) Gaudin model are given. These results can be generalized to any number of constituting spins (SU( N) ).

关键词：量子力学 SU(3)群自旋链

A V_(2)O_(3)@N-C cathode material for aqueous zinc-ion batteries with boosted zinc-ion storage performance

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Rare Metals 2022年第5期41卷 1605-1615页

作者： Huai-Zheng Ren Jian Zhang bo Wang Hao Luo Fan Jin Tian-Ren Zhang An Ding bo-Wen cong Dian-Long Wang MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage State Key Laboratory of Urban Water Resource and EnvironmentSchool of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbin 150001China Tianneng Group Changxing 313100China

The discontinuity of new types of clean energy,such as wind power and solar cells, has promoted the development of large-scale energy storage systems(EES).Rechargeable aqueous zinc-ion batteries(ZIBs) have received extensive attention due to their inherent safety and low cost. At this stage, the performance of ZIBs is still limited by cathode materials. In this work, we have constructed a ZIBs cathode material-V_(2)O_(3)@N–C, through surface coating and N atom doping. The N-doped carbon coating endows V_(2)O_(3)@N–C with excellent structural stability and enhances its electrical conductivity. As a result,V_(2)O_(3)@N–C cathode delivers exceptional reversible of Zn^(2+) intercalation/deintercalation. The fabricated Zn/V_(2)O_(3)@N–C batteries exhibit high capacity of 274.6 mAh·g^(-1) at 5 A·g^(-1) and excellent capacity retention of 94% after 2000 cycles. The reversible intercalation/deintercalation of Zn^(2+) in the V_(2)O_(3)@N–C cathode is proved by ex-situ testing methods. It is believed that this work should inject new vitality into the development of ZIBs cathode.

关键词： Zinc-ion batteries V_(2)O_(3)@N-C cathode Structural design Carbon layer N atom doping

Reducing Subspaces of Toeplitz Operators Induced by a Class of Non-analytic Monomials over the Unit Ball

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Acta Mathematica Sinica,English Series 2024年第7期40卷 1767-1777页

作者： Yan yue SHI bo ZHANG Xu TANG Yu Feng LU School of Mathematical Sciences Ocean University of ChinaQingdao 266100P.R.China School of Mathematics and Information Sciences Yantai UniversityYantai 264005P.R.China School of Mathematical Sciences Space Engineering UniversityBeijing 101416P.R.China School of Mathematical Sciences Dalian University of TechnologyDalian 116024P.R.China

In this paper,we describe the minimal reducing subspaces of Toeplitz operators induced by non-analytic monomials on the weighted Bergman spaces and Dirichlet spaces over the unit ball B_(2).It is proved that each minimal reducing subspace M is finite dimensional,and if dim M≥3,then M is induced by a ***,the structure of commutant algebra v(T_(w)N_(z)N):={M^(*)_(w)NM_(z)N,M^(*)_(z)NM_(w)N}′is determined by N and the two dimensional minimal reducing subspaces of(T_(w)N_(z)*** also give some interesting examples.

关键词： Reducing subspace operator-weighted shifts Toeplitz operator von Neumann algebra

Curcumin in gastric cancer treatment:A commentary on mechanistic insights and future directions

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World Journal of Gastrointestinal Oncology 2025年第1期17卷 265-267页

作者： Xin-yue Wei Wen-bo Cao Sai-Jun Mo Zhi-Yan Sun Department of Pathophysiology School of Basic Medical SciencesZhengzhou UniversityZhengzhou 450001Henan ProvinceChina School of Basic Medical Science Zhengzhou UniversityZhengzhou 450001Henan ProvinceChina Department of Basic Science of Oncology School of Basic Medical SciencesZhengzhou UniversityZhengzhou 450001Henan ProvinceChina Department of Special Service No.988 Hospital of the Joint Service Support Force of PLAZhengzhou 450042Henan ProvinceChina

The study by Yang et al presents a comprehensive investigation into the thera-peutic potential of curcumin for gastric cancer(GC).Using network pharma-cology,the researchers identified 48 curcumin-related genes,31 of which overlap with GC *** genes,including ESR1,EGFR,CYP3A4,MAPK14,CYP1A2,and CYP2B6,are linked to poor survival in GC *** docking con-firmed strong binding affinity of curcumin to these *** vitro experiments demonstrated that curcumin effectively inhibits the growth and proliferation of BGC-823,suggesting its therapeutic potential in GC through multiple targets and pathways.

关键词： Curcumin Gastric cancer Network pharmacology Mechanism of action In vitro experiments

Load balance in hierarchical routing network

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The Journal of China Universities of Posts and Telecommunications 2009年第6期16卷 72-77页

作者： HUA Yi-qiang LIU Ai-bo LU yue-ming LI Hui JI yue-feng Key Laboratory of Information Photonics and Optical Communications Ministry of Education Beijing University of Posts and Telecommunications Beijing 100876 China Cisco Systems Inc. China Beijing 100022 China

In this article,the problem of load balance in hierarchical routing network is *** conventional shortest path first（SPF） algorithm over aggregated topology in hierarchical routing network may result in worse routing performance,a traffic sharing path selection algorithm and a variable weight scheme are put forward for hierarchical routing network,which can equilibrate the utilities of link resources and reduce the blocking probability of connections with the improvement on *** are conducted to evaluate proposed variable weight and traffics balance（VWTB） algorithm,which combines traffic sharing and variable *** the simulation results,it can be found that the proposed VWTB algorithm can balance the traffics and equilibrate the utilities of link resources significantly.

关键词： hierarchical routing load balance variable weight traffic sharing

Chemical compositions of sulfides in the porphyry Cu ores,Yangla Cu deposit,Yunnan,China:implication for ore genesis

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Acta Geochimica 2020年第6期39卷 947-972页

作者： Xinfu Wang bo Li Zuopeng Xiang Yan yue Guo Tang Faculty of Land and Resource Engineering Kunming University of Science and TechnologyKunming 650093China Kunming Prospecting Design Institute of China Nonferrous Metals Industry Co. LtdKunming 650051China

The Yangla Cu deposit is the largest ore deposit in the Jinshajiang polymetallic metallogenic belt,northwest Yunnan,*** is no consensus on the genesis of the ore deposit owing to the limited studies on the chemical compositions of *** study used an electron probe micro-analyzer to constrain the chemical compositions of pyrite,chalcopyrite,molybdenite,and sphalerite in the porphyry Cu ore of the Yangla Cu deposit and compared them with the chemical compositions of sulfides in the skarn Cu *** trace element contents and their occurrences were used to estimate the metallogenic temperature and infer the genesis of the Yangla *** results show that the sulfides in the porphyry Cu ores have variations of ore element concentrations relative to their theoretical *** is depleted in S but elevated in Fe;chalcopyrite is depleted in Cu,Fe,and S;and molybdenite and sphalerite are enriched in S whilst depleted in Mo and *** concentrations of the main metallogenic elements Cu,Fe,Mo,Zn,and S in the porphyry are generally lower than those in skarn,suggesting that the porphyry ore was formed in a moderate to moderate-high temperature metallogenic *** formation time may also be slightly later than that of the skarn Cu *** such as As,Co,***,Zn,Mo,Cd,and Ni mainly exist as isomorphic replacements and mineral inclusions in the sulfides of both porphyry and skarn Cu *** trace element features of sulfides in the two ore bodies show that the Yangla Cu deposit may be a composite super imposed ore deposit,and让s formation has undergone the process of exhalative-sedimentary to skarnporphyry mineralization.

关键词： Sulfides Trace elements Chemical composition Yangla Cu deposit Yunnan