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Multifunctional interstitial-carbon-doped FeCoNiCu high entropy alloys with excellent electromagnetic-wave absorption performance

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Journal of Materials Science & Technology 2022年第18期113卷 61-70页

作者： Jianping Yang Linwen Jiang zhonghao liu Zhuo Tang Anhua Wu State Key Laboratory Base of Novel Functional Materials and Preparation Science Key Laboratory of Photoelectric Detection Materials and Devices of Zhejiang ProvinceNingbo UniversityNingbo 315211China Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology CAS Key Laboratory of Magnetic Materials and DevicesNingbo Institute of Materials Technology&EngineeringChinese Academy of SciencesNingbo 315201China Shanghai Institute of Ceramics Chinese Academy of SciencesShanghai 201800China

Electromagnetic-wave absorbing(EMA)materials that have efficient absorption performances,great me-chanical properties and chemical stability are rare and yet essential for communication security and ***,flaky interstitial-carbon-doped FeCoNiCu high entropy alloys(HEAs)as novel EMA ma-terials were successfully prepared by high-energy ball-milling ***-carbon doping as a modulating approach impacted the phase forming,morphology and electromagnetic properties of Fe-CoNiCu *** matching was significantly optimized via tuning interstitial carbon *** carbon-doped FeCoNiCu HEAs with appropriate carbon contents delivered superior EMA performance compared with other HEAs EMA *** reflection loss as low as-61.1 dB in the Ku band,broad effective absorption bandwidth of 5.1 GHz was achieved for FeCoNiCuC_(0.04).Moreover,the carbon-doped FeCoNiCu HEAs exhibited excellent mechanical hardness and chemical *** work not only suggests that interstitial-carbon doping is an available approach to tuning electromagnetic properties of HEAs,but also presents carbon-doped FeCoNiCu HEAs as promising EMA materials for civilian and mili-tary due to the efficient absorption,broad bandwidth,great durability and stability.

关键词： Microwave absorption High entropy alloys FeCoNiCu Carbon-doping Impedance match

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Crocetin Potentiates Neurite Growth in Hippocampal Neurons and Facilitates Functional Recovery in Rats with Spinal Cord Injury

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Neuroscience Bulletin 2017年第6期33卷 695-702页

作者： Xiqian Wang Xiejia Jiao zhonghao liu Yixin Li Orthopaedics Department The Second Hospital of Shandong UniversityJinan 250012China Imaging Department The Second Hospital of Shandong UniversityJinan 250012China

Crocetin is an ingredient of traditional Chinese medicine and has therapeutic potential in various diseases due to its pharmacological properties, such as neuroprotection, anti-oxidative stress, and anti-inflammation. These properties might benefit the treatment of spinal cord *** the present study, we tested the effect of crocetin on neurite growth and sensorimotor dysfunction in a rat model of spinal cord injury. We evaluated the viability of cultured hippocampal neurons with tetrazolium dye and lactate dehydrogenase assays, visualized neurites and axons with antibody staining, and monitored motor and sensorimotor functions in rats with spinal cord injury using the Basso,Beattie, and Bresnahan assay and the contact plantar placement test, respectively, and measured cytokine expression using enzyme-linked immuno-absorbent *** found that crocetin（1） did not alter the viability of cultured hippocampal neurons;（2） accelerated neurite growth with preference for the longest process in individual hippocampal neurons;（3） reversed the inhibition of neurite growth by chondroitin sulfate proteoglycan and Nogo A;（4） facilitated the recovery of motor and sensorimotor functions after spinal cord injury; and（5） did not inhibit pro-inflammatory responses, but restored the innervation of the descending 5-HT system in injured spinalcord. Crocetin promotes neurite growth and facilitates the recovery of motor and sensorimotor functions after spinal cord injury, likely through repairing neuronal connections.

关键词： Crocetin Spinal cord injury Hippocampal neurons Inflammation

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Electronic structure of LaIrIn5and f-electron character in its related Ce-115 compounds

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Science China(Physics,Mechanics & Astronomy) 2020年第11期63卷 90-97页

作者： Rui Zhou XueBing Luo ZhaoFeng Ding Lei Shu XingYu Ji ZiHao Zhu YaoBo Huang DaWei Shen ZhengTai liu zhonghao liu Yun Zhang QiuYun Chen Science and Technology on Surface Physics and Chemistry Laboratory Mianyang 621908China Department of Engineering Physics Tsinghua UniversityBeijing 100084China State Key Laboratory of Surface Physics and Department of Physics Fudan UniversityShanghai 200433China Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201204China Center of Excellence in Superconducting Electronics State Key Laboratory of Functional Materials for InformaticsShanghai Institute of Microsystem and Information TechnologyChinese Academy of SciencesShanghai 200050China

LaIrIn5 is a reference compound of the heavy-fermion superconductor *** lack of f electrons in LaIrIn5 indicates that there should not be any f electron participating in the construction of its Fermi *** the electronic structure comparison between LaIrIn5 and LaIrIn5 provides a good platform to study the properties of f *** angle-resolved photoemission spectroscopy(ARPES)measurements and density functional theory(DFT)calculations are performed to study the electronic structures of LaIrIn5 and *** find the valence band structures of the two materials are similar to each other,except for the absence of f bands in *** analyzing the Fermi crossings of the three conduction bands of the two materials quantitatively,we find the volumes of the electron pocketsαandβaround the M′point become larger from LaIrIn5 to LaIrIn5,while the hole pocketγaround theΓ′point becomes *** with the calculation results,we confirm that this is mainly originated from the f-electron contribution,while the lattice-constant difference between LaIrIn5 and LaIrIn5 only has a finite *** also give a summary of the f-electron character in its related Ce-115 heavy fermion *** results may be essential for the complete microscopic understanding of the 115 compounds and the related heavy-fermion systems.

关键词： ARPES DFT heavy fermion LaIrIn5

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CRYOGENIC MECHANICAL BEHAVIOUR OF MARAGING STEEL CONTAINING HYDROGEN

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Acta Metallurgica Sinica(English Letters) 1991年第1期4卷 47-54页

作者： liu zhonghao CHEN Lian Institute of Metal Research,Academia Sinica,Shenyang,China

Within the range of 77 to 295 K,the strength and plastieity of 18Ni maraging steel increase with decreasing temperature and decrease with increasing hydrogen *** susceptibility to hydrogen embrittlement of the maraged specimens is superior to solid solution *** dislocations after plastically deforming will tangle into dislocation cells which reduce thermselves in size as the temperature decreases,and coarsen as the hydrogen content in- *** cryogenie deformation twin was *** tensile fracture surfaces of the solu- tion and maraged specimens containing 5.90 ppm hydrogen under 295 to 223 K are revealed as quasi-cleavage and intergranular features respectively and as transgranular ones under other experimental *** influence of hydrogen on the mechanical behaviour of steel and the mechanism of hydrogen induced deformation and fracture are discussed. Research Assistant, Institute of Metal Research,Academia Sinica, Shenyang 110015,China

关键词： maraging steel fracture hydrogen embrittlement cryogenic property

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Experimental observation of multiple topological nodal structure in LaSb_(2)

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Science China(Physics,Mechanics & Astronomy) 2024年第4期67卷 138-145页

作者： Yuxi Qiao Fuyi Wang Huaiqiang Wang Zicheng Tao Zhicheng Jiang Zhengtai liu Soohyun Cho Fayuan Zhang Qingkai Meng Wei Xia Yichen Yang Zhe Huang Jishan liu zhonghao liu Zengwei Zhu Shan Qiao Yanfeng Guo Haijun Zhang Dawei Shen State Key Laboratory of Functional Materials for Informatics Shanghai Institute of Microsystem and Information TechnologyChinese Academy of SciencesShanghai 200050China National Synchrotron Radiation Laboratory and School of Nuclear Science and TechnologyUniversity of Science and Technology of ChinaHefei 230026China National Laboratory of Solid State Microstructures School of PhysicsNanjing UniversityNanjing 210093China School of Physics and Technology Nanjing Normal UniversityNanjing 210023China School of Physical Science and Technology ShanghaiTech UniversityShanghai 201210China Shanghai Synchrotron Radiation Facility Shanghai Advanced Research InstituteChinese Academy of SciencesShanghai 201210China Shenzhen Institute for Quantum Science and Engineering Southern University of Science and TechnologyShenzhen 518055China Wuhan National High Magnetic Field Center and School of Physics Huazhong University of Science and TechnologyWuhan 430074China ShanghaiTech Laboratory for Topological Physics ShanghaiTech UniversityShanghai 201210China Institute of High-Pressure Physics School of Physical Science and Technology Ningbo UniversityNingbo 315211China Collaborative Innovation Center of Advanced Microstructures Nanjing UniversityNanjing 210093China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China

Unconventional fermions in the immensely studied topological semimetals are the source for rich exotic topological ***,using symmetry analysis and first-principles calculations,we propose the coexistence of multiple topological nodal structure in LaSb_(2),including topological nodal surfaces,nodal lines and in particular eightfold degenerate nodal points,which have been scarcely observed in a single ***,utilizing angle-resolved photoemission spectroscopy,we confirm the existence of nodal surfaces and eightfold degenerate nodal points in LaSb_(2).The intriguing multiple topological nodal structure might play a crucial role in giving rise to the large linear *** work renews the insights into the exotic topological phenomena in LaSb_(2).

关键词： eightfold degenerate points multiple topological nodal structure angle-resolved photoemission spectroscopy linear unsaturated magnetoresistance

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Photoemission Spectroscopic Evidence of Multiple Dirac Cones in Superconducting BaSn_(3)

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Chinese Physics Letters 2021年第10期38卷 43-48页

作者： Zhe Huang Xianbiao Shi Gaoning Zhang Zhengtai liu Soohyun Cho Zhicheng Jiang zhonghao liu Jishan liu Yichen Yang Wei Xia Weiwei Zhao Yanfeng Guo Dawei Shen Center for Excellence in Superconducting Electronics State Key Laboratory of Functional Materials for InformaticsShanghai Institute of Microsystem and Information TechnologyChinese Academy of SciencesShanghai 200050China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China School of Physical Science and Technology Shanghai Tech UniversityUniversityShanghai 201210 State Key Laboratory of Advanced Welding and Joining Harbin Institute of TechnologyShenzhen 518055China Flexible Printed Electronics Technology Center Harbin Institute of TechnologyShenzhen 518055China Shanghai Tech Laboratory for Topological Physics Shanghai Tech UniversityShanghai 201210China

Signatures of topological superconductivity(TSC)in superconducting materials with topological nontrivial states prompt intensive researches *** high-resolution angle-resolved photoemission spectroscopy and first-principles calculations,we demonstrate multiple Dirac fermions and surface states in superconductor BaSn_(3) with a critical transition temperature of about 4.4 *** predict and then unveil the existence of two pairs of type-Ⅰtopological Dirac fermions residing on the rotational ***-ⅡDirac fermions protected by screw axis are confirmed in the same *** calculation for the spin helical texture of the observed surface states originating from the Dirac fermions gives an opportunity for realization of TSC in one single *** multiple Dirac fermions and topological surface states,the intrinsic superconductor BaSn_(3) is expected to be a new platform for further investigation of topological quantum materials as well as TSC.

关键词： material topological Dirac

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Quantization of the band at the surface of charge density wave material 2H-TaSe_(2)

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Chinese Physics B 2021年第4期30卷 106-112页

作者： Man Li Nan Xu Jianfeng Zhang Rui Lou Ming Shi Lijun Li Hechang Lei Cedomir Petrovic zhonghao liu Kai liu Yaobo Huang Shancai Wang Department of Physics and Beijing Key Laboratory of Opto-electronic Functional Materials&Micro-nano Devices Renmin University of ChinaBeijing 100872China Shanghai Synchrotron Radiation Facility Shanghai Institute of Applied PhysicsChinese Academy of SciencesShanghai 201204China Institute of Advanced Studies Wuhan UniversityWuhan 430072China Swiss Light Source Paul Scherrer InstituteCH-5232 VilligenSwitzerland Chongqing Technology and Busineee University Chongqing 400067China Condensed Matter Physics and Materials Science Department Brookhaven National LaboratoryUptonNY 11973USA State Key Laboratory of Functional Materials for Informatics and Center for Excellence in Superconducting Electronics SIMITChinese Academy of SciencesShanghai 200050China

By using angle-resolvea photoemission spectroscopy(ARPES) combined with the first-principies electronic structure calculations,we report the quantized states at the surface of a single crystal 2 H-TaSe_(2).We have observed sub-bands of quantized states at the three-dimensional Brillouin zone center due to a highly dispersive band with light effective mass along k_(z) *** quantized sub-bands shift upward towards E_(F) while the bulk band at Γ shifts downward with the decrease of temperature across charge density wave(CDW) *** band shifts could be intimately related to the *** neither the two-dimensional Fermi-surface nesting nor purely strong electron-phonon coupling can explain the mechanism of CDW in 2 H-TaSe_(2),our experiment may ignite the interest in understanding the CDW mechanism in this family.

关键词： angle-resolved photoemission spectroscopy transition metal dichalcogenide TaSe_(2)

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计算机辅助规划设计助力精准种植与长期稳定

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口腔医学研究 2021年第9期37卷 775-779页

作者：柳忠豪滨州医学院附属烟台市口腔医院口腔种植科山东烟台264000

随着影像技术及计算机技术的不断发展,口腔种植医疗也正经历一场数字化革命,发展为包括数字化信息采集、计算机辅助虚拟三维种植手术规划、数字化引导种植外科和数字化修复等多种数字化技术在内的综合诊疗方式,数字化的临床程序使得种... 详细信息

随着影像技术及计算机技术的不断发展,口腔种植医疗也正经历一场数字化革命,发展为包括数字化信息采集、计算机辅助虚拟三维种植手术规划、数字化引导种植外科和数字化修复等多种数字化技术在内的综合诊疗方式,数字化的临床程序使得种植诊疗更加规范、种植修复实施更加精准,必将极大降低了种植修复并发症的发生,提升种植修复长期稳定的功能与美学效果。笔者将围绕数字化信息采集、种植修复前美学分析、种植外科辅助规划、种植体支持的修复体设计等计算机辅助种植规划与设计方面进行概述。

关键词：牙种植计算机辅助设计数字化技术美学分析设计

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Topological surface states in quasi-two-dimensional magnetic kagome metal EuTi_(3)Bi_(4)

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Science Bulletin 2024年第20期69卷 3192-3196页

作者： Zhicheng Jiang Tongrui Li Jian Yuan Zhengtai liu Zhipeng Cao Soohyun Cho Mingfang Shu Yichen Yang Zhikai Li Jiayu liu Jianyang Ding zhonghao liu Jishan liu Jie Ma Zhe Sun Xiangang Wan Yanfeng Guo Dawei Shen Donglai Feng National Synchrotron Radiation Laboratory University of Science and Technology of ChinaHefei 230026China Shanghai Synchrotron Radiation Facility Shanghai Advanced Research InstituteChinese Academy of SciencesShanghai 201210China School of Physical Science and Technology ShanghaiTech UniversityShanghai 201210China National Synchrotron Radiation Laboratory and School of Nuclear Science and Technology University of Science and Technology of ChinaHefei 230026China e5 National Laboratory of Solid State Microstructures School of PhysicsCollaborative Innovation Center of Advanced MicrostructuresNanjing UniversityNanjing 210093China f 6Key Laboratory of Artificial Structures and Quantum Control(Ministry of Education) Shenyang National Laboratory for Materials ScienceSchool of Physics and AstronomyShanghai Jiao Tong UniversityShanghai 200240China g7 Institute of High-Pressure Physics and School of Physical Science and Technology Ningbo UniversityNingbo 315211China h 8ShanghaiTech Laboratory for Topological Physics ShanghaiTech UniversityShanghai 201210China i9New Cornerstone Science Laboratory University of Science and Technology of ChinaHefei 230026China j 10Collaborative Innovation Center of Advanced Microstructures Nanjing UniversityNanjing 210093China k 11National Key Laboratory of Materials for Integrated Circuits Shanghai Institute of Microsystem and Information Technology(SIMIT)Chinese Academy of SciencesShanghai 200050China

In solids,the reservation of symmetries defines the types of topological invariants that classify various topological quantum materials[1–3].Among them,the time-reversal symmetry(TRS)is the most fundamental,which plays key role in topological helical edge or surface ***,breaking TRS in topological materials typically gives rise to unexpected exotic states,such as magnetic Weyl semimetals,quantum anomalous Hall insulators,and axion insulators.

关键词： topological quantum magnetic

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RIBONUCLEASE ACTIVITY OF DUNALIELLA SALINA(CHLOROPHYTA)UNDER HYPEROSMOTIC SHOCKS

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南京大学学报(自然科学) 1998年第2期 7-9页

作者： Lu Shan△ Zhang Xiaoning Xia zhonghao liu Zhili(Department of Biological Science and Technology,Nanjing University,210093,Nanjing,PRC)

ＲＩＢＯＮＵＣＬＥＡＳＥＡＣＴＩＶＩＴＹＯＦＤＵＮＡＬＩＥＬＬＡＳＡＬＩＮＡ（ＣＨＬＯＲＯＰＨＹＴＡ）ＵＮＤＥＲＨＹＰＥＲＯＳＭＯＴＩＣＳＨＯＣＫＳＬｕＳｈａｎ△ＺｈａｎｇＸｉａｏｎｉｎｇＸｉａＺｈｏｎｇｈａｏＬｉｕ... 详细信息

ＲＩＢＯＮＵＣＬＥＡＳＥＡＣＴＩＶＩＴＹＯＦＤＵＮＡＬＩＥＬＬＡＳＡＬＩＮＡ（ＣＨＬＯＲＯＰＨＹＴＡ）ＵＮＤＥＲＨＹＰＥＲＯＳＭＯＴＩＣＳＨＯＣＫＳＬｕＳｈａｎ△ＺｈａｎｇＸｉａｏｎｉｎｇＸｉａＺｈｏｎｇｈａｏＬｉｕＺｈｉｌｉ（Ｄｅｐａｒｔｍｅｎｔｏ...

关键词： Dunaliella salina glycerol hyperosmotic shock RNaseClassificcation Index X321

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