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Microstructure Evoluti.n and nanomechanical Behavior of Micro-Area in Molten Pool of Selective Laser Melting(CoCrni)_(82)Al_(9)ti_(9)High-Entropy Alloy

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Acta Metallurgica Sinica(English Letters) 2024年第6期37卷 1019-1033页

作者： Hong-Wei Zhang Li-Wei Lan zhe-Yu Yang Chang-Chun Li Wen-Xian Wang College of Materials Science and Engineering Taiyuan University of TechnologyTaiyuan030024China Ministry of Educati.n Key Laboratory of Interface Science and Engineering in Advanced MaterialsTaiyuan University of TechnologyTaiyuan030024China Shanxi-zhejiang University new Materials and Chemical Research Institute Taiyuan030032China

In this work,the phase evoluti.n mechanism and nanomechanical properties of(CoCrni))(82)Al_(9)ti_(9)high-entropy alloy(HEA)prepared by selective laser melting(SLM)in the molten pool were *** HEA contains multiple primary elements and undergoes high-temperature gradient and rapid cooling during *** leads to significant inhomogeneity of nano-scale microstructure characteristics and instability of *** optimizing process parameters,the microstructure evoluti.n at the optimal parameter volume energy density of 440 J/mm^(3)was studied.A phase transiti.n from BCC to FCC occurred in the melt *** the micro-area of the melt pool results in a temperature rise and the combusti.n-induced loss of Al ***,the ni element content increases significantly outside the melt *** process enhances the phase stability of FCC and facilitates phase ***,rapid cooling leads to the formati.n of distinctive ultrafine equiaxial crystals inside the melt pool,accompanied by the generati.n of intracrystalline needle-like nano-scale *** the melt pool,the accumulati.n of energy results in the formati.n of coarse ***,the nano-hardness inside the molten pool is remarkably high at 11.79 GPa,while the outside the molten pool is reduced to 9.58 *** the fracture toughness outside the melt pool also *** with inside the melt pool,the residual stress outside the melt pool changed from compressive to tensile stress and decreased from 603.28 to 322.84 MPa.

关键词： High-entropy alloys Selective laser melting Microstructure evoluti.n nanoindentati.n

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Deciphering the Shared and Specific Drug Resistance Mechanisms of Anaplastic Lymphoma Kinase via Binding Free Energy Computati.n

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Research 2024年第1期2023卷 663-674页

作者： Yang Yu zhe Wang Lingling Wang Qinghua Wang Rongfan Tang Sutong Xiang Qirui Deng tingjun Hou Huiyong Sun Department of Medicinal Chemistry China Pharmaceutical UniversityNanjing 210009JiangsuP.R.China Innovati.n Institute for Artificial Intelligence in Medicine of zhejiang University College of Pharmaceutical SciencesZhejiang UniversityHangzhou 310058ZhejiangP.R.China

Anaplastic lymphoma kinase(ALK),a tyrosine receptor kinase,has been proven to be associated with the occurrence of numerous *** there have been already at least 3 generati.ns of ALK inhibitors approved by FDA or in clinical trials,the occurrence of various mutati.ns seriously attenuates the effectiveness of the ***,most of the drug resistance mechanisms still remain ***,it is necessary to reveal the bottom reasons of the drug resistance mechanisms caused by the *** this work,on the basis of verifying the accuracy of 2 main kinds of binding free energy calculati.n methodologies[end-point method of Molecular Mechanics with Poisson-Boltzmann/Generalized Born and Surface Area(MM/PB(GB)SA)and alchemical method of Thermodynamic Integrati.n(ti)],we performed a systematic analysis on the ALK systems to explore the underlying shared and specific drug resistance mechanisms,covering the one-drug-multiple-mutati.n and multiple-drug-onemutati.n cases.

关键词： drugs Anaplastic clinical

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开关投切过程建模及其在配网故障诊断算法测试中的应用

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上海交通大学学报 2024年第9期58卷 1381-1389页

作者：薛贵挺刘哲韩兆儒石访王倜王晓国网北京市电力公司海淀供电公司山东大学电气工程学院

配电网故障诊断是确定故障位置、提高故障处理效率和降低停电损失的重要手段.目前，在故障诊断算法设计与测试过程中较少考虑开关操作等干扰的影响，造成算法在实际应用中易误动、用户体验差.针对配电网开关分闸的暂态过程进行详细分析... 详细信息

配电网故障诊断是确定故障位置、提高故障处理效率和降低停电损失的重要手段.目前，在故障诊断算法设计与测试过程中较少考虑开关操作等干扰的影响，造成算法在实际应用中易误动、用户体验差.针对配电网开关分闸的暂态过程进行详细分析，结合Mayr与Helmer模型对开关投切过程建模，并在PSCAD中生成仿真波形与现场操作过程暂态波形进行对比分析.在模型精准性检验基础上，构建了包含开关操作过程的配电网典型故障算例；与现有常用模型相比，所提模型可以仿真生成贴近现场开关投切过程的扰动数据，可用于故障诊断算法的可靠性检验.最后通过结果分析，对优化故障诊断算法和测试流程提出了针对性建议.

关键词：配电网开关投切电弧模型故障诊断

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nanodiamond/ti_(3)C_(2) MXene-coated quartz crystal microbalance humidity sensor with high sensitivity and high quality factor

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Rare Metals 2024年第6期43卷 2719-2729页

作者： Yao Yao Qiao Chen Yan-Qi Li Xian-He Huang Wei-Wei Ling zhe-MiaoXie Jia-QiWang Chang-Ming Chen College of Communicati.n Engineering Chengdu University of Information TechnologyChengdu 610225China School of Automati.n Chongqing University of Posts and TelecommunicationsChongqing 400065China School of Automati.n Engineering University of Electronic Science and Technology of ChinaChengdu 611731China Advanced Micro-/nano-Devices Lab Department of Systems Design EngineeringUniversity of WaterlooWaterlooON N2L 3GlCanada

To address the challenge of achieving both high sensitivity and a high quality factor in quartz crystal microbalance(QCM)humidity sensors,a nanodiamond(nD)/ti_(3)C_(2)MXene composite-coated QCM humidity sensor was *** material characteristics of nD,ti_(3)C_(2)MXene,and nD/ti_(3)C_(2)MXene composite were analyzed by transmission electron microscopy(TEM)and Fourier transform infrared(FtiR)*** experimental results demonstrated that the hydrophilic nD nanoparticles coated on ti_(3)C_(2) MXene nanosheet prevented the self-stacking of ti_(3)C_(2)MXene and enhanced the sensitivity of ti_(3)C_(2) MXene-based QCM humidity ***,the high mechanical modulus of ti_(3)C_(2) MXene material helped nD/ti_(3)C_(2)MXene composite-coated QCM humidity sensor to achieve a high quality factor(>20,000).nD/ti_(3)C_(2)MXene compositecoated QCM humidity sensor exhibited a sensitivity of 82.45 Hz/%RH,a humidity hysteresis of 1.1%RH,fast response/recovery times,acceptable repeatability,and good stability from 11.3%RH to 97.3%*** response mechanism of nD/ti_(3)C_(2) MXene composite-coated QCM humidity sensor was analyzed in combinati.n with a bi-exponential kinetic adsorpti.n ***,the potential applicati.n of nD/ti_(3)C_(2)MXene composite-coated QCM humidity sensor was demonstrated through its frequency response to wooden blocks with different moisture contents.

关键词： Humidity sensor Quartz crystal microbalance nanodiamond ti_(3)C_(2)MXene High quality factor

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Anisotropic magnetism and band evoluti.n induced by ferromagnetic phase transiti.n in titanium-based kagome ferromagnet Smti_3Bi_4

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Science China(Physics,Mechanics & Astronomy) 2024年第6期67卷 137-145页

作者： zhe zheng Long Chen Xuecong Ji Ying Zhou Gexing Qu Mingzhe Hu Yaobo Huang Hongming Weng ti.n Qian Gang Wang Beijing nati.nal Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China School of Physics and Engineering Henan University of Science and TechnologyLuoyang 471023China Shanghai Synchrotron Radiati.n Facility Shanghai Advanced Research InstituteChinese Academy of SciencesShanghai 201210China Songshan Lake Materials Laboratory Dongguan 523808China CAS Center for Excellence in Topological Quantum Computati.n Chinese Academy of SciencesBeijing 100190China

Kagome magnets with diverse topological quantum responses are crucial for next-generati.n topological *** anisotropic magnetism and band evoluti.n induced by ferromagnetic phase transiti.n(FMPT)is reported in a newly discovered titanium-based kagome ferromagnet Sm ti3Bi4,which features a distorted ti kagome lattice and Sm atomic zig-zag ***-dependent resistivity,heat capacity,and magnetic susceptibility reveal a ferromagnetic ordering temperature Tc of23.2 K.A large magnetic anisotropy,observed by applying the magnetic field along three crystallographic axes,identifies the b axis as the easy ***-resolved photoemission spectroscopy with first-principles calculati.ns unveils the characteristic kagome motif,including the Dirac point at the Fermi level and multiple van Hove ***,a band splitting and gap closing attributed to FMPT is observed,originating from the exchange coupling between Sm 4 f local moments and itinerant electrons of the kagome ti atoms,as well as the time-reversal symmetry breaking induced by the long-range ferromagnetic *** the large in-plane magnetizati.n and the evoluti.n of electronic structure under the influence of ferromagnetic ordering,such materials promise to be a new platform for exploring the intricate electronic properties and magnetic phases based on the kagome lattice.

关键词： kagome lattice anisotropic magnetism band splitting ferromagnetic phase transiti.n ARPES

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Optical modificati.n of nonlinear crystals for quasi-parametric chirped-pulse amplificati.n

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Fundamental Research 2024年第1期4卷 43-50页

作者： Qian Lin Jingui Ma zhe Yin Peng Yuan Jing Wang Guoqiang Xie Liejia Qian Key Laboratory for Laser Plasmas(MOE) Collaborative Innovation Center of IFSASchool of Physics and AstronomyShanghai Jiao Tong UniversityShanghai 200240China Tsung-Dao Lee Institute Shanghai Jiao Tong UniversityShanghai 200240China

Quasi-parametric chirped-pulse amplificati.n(QPCPA),which features a theoretical peak power much higher than those obtained with ti:sapphire laser or optical parametric chirped-pulse amplificati.n,is promising for future ultra-intense *** doped rare-earth ion used for idler dissipati.n is critical for effective QPCPA,but is usually not compatible with traditi.nal *** far,only one dissipative crystal of Sm^(3+)-doped yttrium calcium oxyborate has been grown and *** we introduce optical means to modify traditi.nal crystals for QPCPA *** theoretically demonstrate two dissipati.n schemes by idler frequency doubling and sum-frequency generati.n with an additi.nal *** contrast to absorpti.n dissipati.n,the proposed nonlinear dissipati.ns ensure not only high signal efficiency but also high small-signal *** demonstrated ability to optically modify crystals will facilitate the wide applicati.n of QPCPA.

关键词： Quasi-parametric amplifier Second-harmonic generati.n Sum-frequency generati.n Back conversion Idler dissipati.n

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Boron-doped high-entropy oxide toward high-rate and long-cycle layered cathodes for wide-temperature sodium-ion batteries

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Journal of Energy Chemistry 2024年第8期95卷 577-587,I0012页

作者： Yuzhen Dang zhe Xu Yurong Wu Runguo zheng Zhiyuan Wang Xiaopin Lin Yanguo Liu zheng-Yao Li Kai Sun Dongfeng Chen Dan Wang School of Materials Science and Engineering Northeastern UniversityShenyang 110819LiaoningChina School of Resources and Materials Northeastern University at QinhuangdaoQinhuangdao 066004HebeiChina Key Laboratory of Dielectric and Electrolyte Functi.nal Material Hebei Province Qinhuangdao 066004HebeiChina neutron Scattering Laboratory Department of Nuclear PhysicsChina Institute of Atomic EnergyBeijing 102413China

03-type layered metal oxides hold great promise for sodium-ion batteries cathodes owing to their energy density ***,the severe irreversible phase transiti.n and sluggish na^(+)diffusion kinetics pose significant challenges to achieve high-performance layered ***,a boron-doped03-type high entropy oxide na(Fe_(0.2)Co_(0.15)Cu_(0.05)ni_(0.2)Mn_(0.2)ti_(0.2))B_(0.02)O_(2)(nFCCnMT-B_(0.02))is designed and the covalent B-O bonds with high entropy configurati.n ensure a robust layered *** obtained cathode nFCCnMT-B_(0.02)exhibits impressive cycling performance(capacity retenti.n of 95%and 82%after100 cycles and 300 cycles at 1 and 10 C,respectively)and outstanding rate capability(capacity of 83 mAh g^(-1)at 10 C).Furthermore,the nFCCnMT-B_(0.02)demonstrates a superior wide-temperature performance,maintaining the same capacity level(113,4 mAh g^(-1)@-20℃,121 mAh g^(-1)@25℃,and 119 mAh g^(-1)@60℃)and superior cycle stability(90%capacity retenti.n after 100 cycles at 1 C at-20℃).The high-entropy configurati.n design with boron doping strategy contributes to the excellent sodium-ion storage *** high-entropy configurati.n design effectively suppresses irreversible phase transiti.ns accompanied by small volume changes(ΔV=0.65 A3).B ions doping expands the na layer distance and enlarges the P3 phase region,thereby enhancing na^(+)diffusion *** work offers valuable insights into design of high-performance layered cathodes for sodium-ion batteries operating across a wide temperature.

关键词： High entropy oxide Born substituti.n Phase transiti.n na~+diffusion kinetics Sodium-ion batteries

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A recyclable method for titanium extracti.n and oxygen evoluti.n from ti-bearing slags

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Fundamental Research 2024年第1期4卷 86-94页

作者： zhenghao Pu Wei Wang zhe Wang Mingyin Kou Yiwa Luo Jianbang Ge Xin Tao Mingyong Wang Shuqiang Jiao State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China School of Metallurgical and Ecological Engineering University of Science and Technology BeijingBeijing 100083China Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) Zhuhai 519080China

Despite its existence for more than 80 years,the titanium industry is still challenged by massive carbon emissions,high producti.n costs,and large resource *** than one hundred million tons of ti-bearing blast furnace slag(TB-slag)has been discarded in China because of the difficulty of reutilizati.n,which requires efficient titanium extracti.n and recovery *** paper describes a low-cost,carbon-emission-free method for ti extracti.n and oxygen evoluti.n via molten oxide electrolysis(MOE)vacuum *** a comprehensive analysis of the binding energies and activities of liquid metals,the highlights of our study are as follows.1)Sb has the best preferential depositi.n of ti among a series of high-ti-affinitive liquid metal cathodes(Cu,ni,Pb,Sn,and Sb).2)The Ir anode was first used in TB-slag with IrO_(2) formed on its surface to protect it from further corrosion.3)An alloy containing ti and Ca can be obtained by MOE,and ti and Ca metals can be refined by further vacuum distillati.n.4)A closed loop is formed in the overall process owing to the recyclable Sb cathode and continuous feeding of TB-slag into the *** simple,low-cost,and environmentally friendly method can realize the efficient utilizati.n of ti resources and achieve carbon neutrality.

关键词： titanium Molten oxide electrolysis Inert anodeLiquid cathode Depolarizati.n

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Intensity correlati.n properties of x-ray beams split with Laue diffracti.n

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Chinese Physics B 2024年第1期33卷 379-383页

作者：赵昌哲司尚禹张海鹏薛莲李中亮肖体乔 Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China University of Chinese Academy of Sciences Beijing 100049China Shanghai Synchrotron Radiati.n Facility Shanghai Advanced Research InstituteChinese Academy of SciencesShanghai 201204China

Beam splitting is one of the main approaches to achieving x-ray ghost imaging, and the intensity correlati.n between diffracti.n beam and transmission beam will directly affect the imaging quality. In this paper, we investigate the intensity correlati.n between the split x-ray beams by Laue diffracti.n of stress-free crystal. The analysis based on the dynamical theory of x-ray diffracti.n indicates that the spatial resoluti.n of diffracti.n image and transmission image are reduced due to the positi.n shift of the exit beam. In the experimental setup, a stress-free crystal with a thickness of hundredmicrometers-level is used for beam splitting. The crystal is in a non-dispersive configurati.n equipped with a double-crystal monochromator to ensure that the dimension of the diffracti.n beam and transmission beam are consistent. A correlati.n coefficient of 0.92 is achieved experimentally and the high signal-to-noise ratio of the x-ray ghost imaging is *** of this paper demonstrate that the developed beam splitter of Laue crystal has the potential in the efficient data acquisiti.n of x-ray ghost imaging.

关键词： x-ray ghost imaging beam splitting with Laue diffracti.n intensity correlati.n dynamical theory of x-ray diffracti.n

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王船山的“体”概念--对宋明道学“道体”论的重构

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社会科学战线 2024年第2期344卷 34-49页

作者：吴震复旦大学哲学学院上海200433

宋明道学的“道体”被认为是与“今所谓本体意同”的真正本体论。程颐始以“道体”来解释“子在川上曰”,并以“与道为体”论述“道体”,朱子认为其“体”字为“体质”义,而非体用之体,即非体用论意义上与“用”相对的“本体”义。与此... 详细信息

宋明道学的“道体”被认为是与“今所谓本体意同”的真正本体论。程颐始以“道体”来解释“子在川上曰”,并以“与道为体”论述“道体”,朱子认为其“体”字为“体质”义,而非体用之体,即非体用论意义上与“用”相对的“本体”义。与此相应,朱子认为《中庸》“体物不遗”的体物也不过是“物之体”的意思。王船山延续了程朱的道体论,亦强调“体”即形体义。然船山基于其气学立场,认为道体无非是道之体,强调“道体自流行于天下”这一宇宙论形态的道体流行观。对船山而言,道之体即阴阳,也就是阴阳为道之体,故道与阴阳(器)构成了世界的整体结构。然而道与器并非分属形上形下,亦非两种“异体”,相反,道器构成“交与为体”的一体关系。重要的是,在道器结构中,器为基体,道为属性,因而只可说“道者器之道”,却不能说器者“道之器”。这是由于世界的实在性唯在于“器”,故曰“天下惟器”。总之,船山哲学通过对宋明道学“道体”论的重新诠释,建构了“形形皆有”“体用胥有”的气实在论,而这一理论特质印证了张岱年所说的中国哲学本体论肯定“万有众象同属实在”的论断。

关键词：与道为体体物不遗道体流行交与为体气实在论

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