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Magnetic properties of L1_0 FePt thin film influenced by recoverable strains stemmed from the polarization of Pb(Mg_(1/3)Nb_(2/3))O_3–PbTiO_3 substrate

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Chinese Physics B 2018年第7期27卷 515-520页

作者： Li-Wang Liu Cheng-chao hu Ye-Chuan Xu Hou-Bing huang Jiang-Wei Cao Linyun Liang Wei-Feng Rao Department of Materials Physics and IEMMNanjing University of Information Science and TechnologyNanfing 210044China College of Materials Science and Engineering Liaocheng UniversityLiaocheng 252059China Department of Physics University of Science and Technology BeijingBeijing 100083China Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education Lanzhou UniversityLanzhou 730000China Mathematics and Computer Science Division Argonne National LaboratoryArgonneIllinois 60439USA

The magnetic properties and magnetization reversible processes of Llo FePt （3 nm）/Pb（Mg1/3Nb2/3）O3-PbTiO3 （PMN-PT） heterostructure were investigated by using the phase field model. The simulation results show that the magnetic coercivities and magnetic domains evolution in the Llo FePt thin film are significantly influenced by the compressive strains stemming from the polarization of single crystal PMN-PT substrate under an applied electric field. It is found that the magnetic coercivities increase with increasing of the compressive strain. A large compressive strain is beneficial to aligning the magnetic moments along the out-of-plane direction and to the enhancement of perpendicular magnetic anisotropy. The variations of magnetic energy densities show that when compressive strains are different at the magnetization reversible processes, the magnetic anisotropy energies and the magnetic exchange energies firstly increase and then decrease, the negative demagnetization energy peaks appear at coercivities fields, and the magnetoelastic energies are invariable at large external magnetic field with the energy maximum appearing at coercivities fields. The variations of the magnetoelastic energies bring about the perpendicular magnetic anisotropy so that the magnetoelastic energy is lower at the large external magnetic fields, whereas the appearance of magnetoelastic energy peaks is due to the magnetization-altered direction from the normal direction of the plane of the Llo FePt thin film at coercivities fields.

关键词： FePt strain magnetoelastic energy phase field

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Dynamic stress concentrations in thick plates with two holes based on refined theory

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Applied Mathematics and Mechanics(English Edition) 2014年第12期35卷 1591-1606页

作者：周传平胡超 F.MA 刘殿魁 School of Mechanical Engineering Hangzhou Dianzi University College of Civil Science and Engineering Yangzhou University College of Engineering University of CaliforniaBerkeley 94720 U.S.A. College of Aerospace and Civil Engineering Harbin Engineering University

Based on complex variables and conformal mapping, the elastic wave scat- tering and dynamic stress concentrations in the plates with two holes are studied by the refined dynamic equation of plate bending. The problem to be solved is changed to a set of infinite algebraic equations by an orthogonM function expansion method. As examples, under free boundary conditions, the numerical results of the dynamic moment concen- tration factors in the plates with two circular holes are computed. The results indicate that the parameters such as the incident wave number, the thickness of plates, and the spacing between holes have great effects on the dynamic stress distributions. The results are accurate because the refined equation is derived without any engineering hypothese.

关键词： refined vibration equation complex variable and conformal mappingmethod two holes elastic wave scattering and dynamic stress concentrations thick plate

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A PCA-Based Internet Delay Space Dividing Algorithm

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China Communications 2019年第4期16卷 172-185页

作者： Zhanfeng Wang Guang Cheng huaping Cao Ming Chen chao hu Li Han School of Computer Science and Engineering Southeast University Nanjing Lake Bell Information Technology Co. Ltd. school of cyber science ang engineering Southeast University National Computer Network Emergency Response Technique Team/Coordination Center of China Army Egineering University of PLA College of Comannd Control Engineering

It's a hot issue to improve the accuracy of network coordinate systems(NCS). By analyzing the error source of NCSes, it's emphasized that guaranteeing the low dimensionality of embedding datasets is the principle on the designing of NCSes. Based on this observation, a PCA based Internet delay space dividing algorithm(IDSD-PCA) is proposed. Beginning at choosing an optimized sub dataset randomly, IDSD-PCA partitions the Internet delay dataset into several sub datasets with low dimensionality by iterations. After the partition, the whole delay dataset and sub datasets are embedded into a hierarchical NCS. The experimental results show that with this framework both the metric space based models and the non-metric space based models can predict the end-to-end delays more accurately.

关键词： Internet delay space end-to-end delay low dimensionality network coordinate system

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Genetic Prion Disease:Insight from the Features and Experience of China National Surveillance for Creutzfeldt-Jakob Disease

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Neuroscience Bulletin 2021年第11期37卷 1570-1582页

作者： Qi Shi Cao Chen Kang Xiao Wei Zhou Li-Ping Gao Dong-Dong Chen Yue-Zhang Wu Yuan Wang chao hu Chen Gao Xiao-Ping Dong State Key Laboratory for Infectious Disease Prevention and Control Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases(Zhejiang University)National Institute for Viral Disease Control and PreventionChinese Center for Disease Control and PreventionBeijing102206China Center for Global Public Health Chinese Center for Disease Control and PreventionBeijing102206China Center for Biosafety Mega-Science Chinese Academy of SciencesWuhan430064China China Academy of Chinese Medical Sciences Beijing100700China

human genetic prion diseases(gPrDs)are directly associated with mutations and insertions in the PRNP(Prion Protein)*** collected and analyzed the data of 218 Chinese gPrD patients identified between Jan 2006 and June *** different subtypes were identified and gPrDs accounted for 10.9%of all diagnosed PrDs within the same *** subtypes of gPrDs showed a degree of geographic *** age at onset of Chinese gPrDs peaked in the 50–59 year ***–Sträussler–Scheinker syndrome(GSS)and fatal familial insomnia(FFI)cases usually displayed clinical symptoms earlier than genetic Creutzfeldt–Jakob disease(gCJD)patients with point mutations.A family history was more frequently recalled in P105L GSS and D178N FFI patients than T188K and E200K *** of the E196A gCJD patients reported a family *** gCJD cases with point mutations always developed clinical manifestations typical of sporadic CJD(sCJD).EEG examination was not sensitive for ***-associated abnormalities on MRI were found in high proportions of GSS and gCJD *** 14-3-3 positivity was frequently detected in gCJD *** CSF tau was found in more than half of FFI and T188K gCJD cases,and an even higher proportion of E196A and E200K gCJD patients.63.6%of P105L GSS cases showed a positive reaction in cerebrospinal fluid *** and FFI cases had longer durations than most subtypes of *** is one of the largest studies of gPrDs in East Asians,and the illness profile of Chinese gPrDs is clearly *** high proportions of T188K and E196A occur among Chinese gPrDs;these mutations are rarely reported in Caucasians and Japanese.

关键词： Genetic prion disease Mutation Surveillance Creutzfeldt-Jakob disease Gerstmann-Sträussler-Scheinker syndrome Fatal familial insomnia

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中国新兴木刻运动的南洋回响——新加坡20世纪五六十年代的木刻版画研究

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美术 2021年第11期647卷 18-24页

作者：胡超广州美术学院

中国新兴木刻传统于20世纪30年代起开始影响新加坡。在这一影响下,五六十年代新加坡出现了木刻版画创作的繁荣,主要创作者来自南洋美专及赤道艺术研究会,用木刻反抗殖民、关爱劳工阶层、抗议社会不公、反映当地生活,体现了鲜明的社会现... 详细信息

中国新兴木刻传统于20世纪30年代起开始影响新加坡。在这一影响下,五六十年代新加坡出现了木刻版画创作的繁荣,主要创作者来自南洋美专及赤道艺术研究会,用木刻反抗殖民、关爱劳工阶层、抗议社会不公、反映当地生活,体现了鲜明的社会现实主义艺术思想。新加坡因此成为新兴木刻运动在海外产生最大影响的地区,研究这段少为人知的历史,可以从世界视野中考察中国木刻版画的传播和发展,更好地认识新兴木刻运动的生命力。

关键词：海外华人艺术现实主义木刻赤道艺术研究会

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对外贸易与收入不平等——基于我国的经验研究

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国际贸易问题 2008年第3期 22-27页

作者：胡超广西民族大学商学院

本文采用我国1985-2005年的时间序列数据,就对外贸易与收入不平等的关系进行了实证研究。发现对外贸易与收入不平等是一种倒"U"形的关系。1985-2004年对外贸易拉大了我国的收入不平等,之后则缩小了收入不平等。在此基础上,分析了对外贸... 详细信息

本文采用我国1985-2005年的时间序列数据,就对外贸易与收入不平等的关系进行了实证研究。发现对外贸易与收入不平等是一种倒"U"形的关系。1985-2004年对外贸易拉大了我国的收入不平等,之后则缩小了收入不平等。在此基础上,分析了对外贸易与收入不平等成倒"U"形关系的成因,并就今后发展对外贸易与缩小收入不平等提出了相关建议。

关键词：对外贸易收入不平等倒“U”形

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Immune characteristics analysis reveals two key inflammatory factors correlated to the expressions of SARS-CoV-2 S1-specific antibodies

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Genes & Diseases 2022年第2期9卷 522-530页

作者： Shenglong Li Wang Wang Tingting Li Xiaojian Han chao hu Yingming Wang Meiying Shen Li Du Yaru Nai Jianwei Wang Aishun Jin Department of Immunology College of Basic MedicineChongqing Medical UniversityChongqing 400016PR China Chongqing Key Laboratory of Basic and Translational Research of Tumor Immunology Chongqing Medical UniversityChongqing 400016PR China Department of Breast Surgery Harbin Medical University Cancer HospitalHarbin 150081PR China

The pandemic of COVID-19 caused by SARS-CoV-2 has made serious threats to the public *** have been considered as promising therapeutics for the prevention and treatment of *** far,effectors that can influence the sustainability of SARS-CoV-2 specific antibodies in COVID-19 patients are still *** this paper,we attempted to find potential key factors correlated with SARS-CoV-2 specific *** analysis with the peripheral blood mononuclear cells(PBMCs)revealed proportional changes of immune cell subsets in COVID-19 convalescent patients,including a substantial decrease of monocytes and evident increase of dendritic cells(DCs).Moreover,we found that the gene expressions of chemokines associated with monocyte/macrophage were significantly up-regulated during the COVID-19 recovery *** importantly,we found a set of 27 immune genes corresponding to a comparatively lower amount of SARS-CoV-2 specific antibodies,and identified two hub genes,IL1βand IL6,the protein expressions of which exhibited negative correlation with the immunoglobulin G(IgG)levels in COVID-19 convalescent *** addition,we found that high expressions of these 2 hub genes during the convalescent stage were negatively associated with the plasma cell marker *** study presented two key inflammatory factors correlated to the low level of SARS-CoV-2 specific antibodies,which indicated the potential regulatory process of plasmatic antibodies levels in some COVID-19 convalescent patients.

关键词： Antibodies Convalescent stage COVID-19 Cytokines IL1b and IL6

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Peripheral BDNF Regulates Somatosensory–Sympathetic Coupling in Brachial Plexus Avulsion-Induced Neuropathic Pain

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Neuroscience Bulletin 2023年第12期39卷 1789-1806页

作者： Hang Xian huan Guo Yuan-Ying Liu Jian-Lei Zhang Wen-chao hu Ming-Jun Yu Rui Zhao Rou-Gang Xie Hang Zhang Rui Cong Department of Orthopedics Xijing HospitalThe Air Force Medical UniversityXi’an710032China Pain and Related Diseases Research Laboratory Medical College of Shantou UniversityShantou515041China School of Life Science and Research Center for Resource Peptide Drugs Shaanxi Engineering and Technological Research Center for Conversation and Utilization of Regional Biological ResourcesYanan UniversityYanan716000China Department of Neurobiology School of Basic MedicineThe Air Force Medical UniversityXi’an710032China The Sixth Regiment School of Basic MedicineThe Air Force Medical UniversityXi’an710032China The Tenth Squadron of the Third Regiment School of Basic MedicineThe Air Force Medical UniversityXi’an710032China

Brachial plexus avulsion(BPA)is a combined injury involving the central and peripheral nervous *** with BPA often experience severe neuropathic pain(NP)in the affected *** is insensitive to the existing treatments,which makes it a challenge to researchers and *** evidence shows that a BPA-induced pain state is often accompanied by sympathetic nervous dysfunction,which suggests that the excitation state of the sympathetic nervous system is correlated with the existence of ***,the mechanism of how somatosensory neural crosstalk with the sympathetic nerve at the peripheral level remains *** this study,through using a novel BPA C7 root avulsion mouse model,we found that the expression of BDNF and its receptor TrκB in the DRGs of the BPA mice increased,and the markers of sympathetic nervous system activity includingα1 andα2 adrenergic receptors(α1-AR andα2-AR)also increased after *** phenomenon of superexcitation of the sympathetic nervous system,including hypothermia and edema of the affected extremity,was also observed in BPA mice by using CatWalk gait analysis,an infrared thermometer,and an edema *** knockdown of BDNF in DRGs not only reversed the mechanical allodynia but also alleviated the hypothermia and edema of the affected extremity in BPA ***,intraperitoneal injection of adrenergic receptor inhibitors decreased neuronal excitability in patch clamp recording and reversed the mechanical allodynia of BPA *** another branch experiment,we also found the elevated expression of BDNF,TrκB,TH,α1-AR,andα2-AR in DRG tissues from BPA patients compared with normal human DRGs through western blot and *** results revealed that peripheral BDNF is a key molecule in the regulation of somatosensory-sympathetic coupling in BPA-induced *** study also opens a novel analgesic target(BDNF)in the treatment of this pain with fewer complications,which has great potential for clinica

关键词： Brachial plexus avulsion Neuropathic pain Sympathetic nervous system Brain-derived neurotrophic factor Peripheral sensitization Mechanical allodynia

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佑顺寺关公殿:藏传佛教最早的关公崇拜探源

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中国藏学 2023年第3期 150-159,217-218页

作者：胡超广州美术学院新美术馆学研究中心广州510006

既有研究认为,关公信仰正式进入藏传佛教体系始于乾隆时期,并和雍和宫改建有关。文章指出,康熙年间敕建的辽宁省朝阳市佑顺寺,始建时即有关公殿并保存至今,表明关公崇拜正式进入藏传佛教体系不晚于佑顺寺落成的1707年。文章梳理佑顺寺... 详细信息

既有研究认为,关公信仰正式进入藏传佛教体系始于乾隆时期,并和雍和宫改建有关。文章指出,康熙年间敕建的辽宁省朝阳市佑顺寺,始建时即有关公殿并保存至今,表明关公崇拜正式进入藏传佛教体系不晚于佑顺寺落成的1707年。文章梳理佑顺寺藏传佛教石雕、朝阳市地方志和清末海外汉学家在佑顺寺的研究记录,表明佑顺寺从规划到传承,始终是藏传佛教在东北地区重要的传经和藏经寺庙。朝阳市位于东北、漠南和京畿地区交界,地处清朝统治北方地区的核心位置,北京白塔寺的主持喇嘛卓尔济负责筹建佑顺寺并担任首任主持,在此前后,朝阳也成为藏传佛教经文译为蒙古文的重要地区,后世乾隆等历代清朝皇帝往返盛京(沈阳)途中也都在佑顺寺驻留,这些都反映了佑顺寺在清朝敕建藏传佛教寺庙体系中的重要地位和作用。清朝通过佑顺寺等敕建藏传佛教寺庙的布局,在蒙古、东北地区和京畿地区建立起藏传佛教体系的多个节点,正反映了清朝将藏传佛教“国教化”和“王朝化”的思路。而佑顺寺中专门建成的关公殿,体现着清朝借助藏传佛教来管理国家,吸收不同民族和地区文化的特点,也反映了藏传佛教的开放和包容。

关键词：藏传佛教关公佑顺寺

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新山游神纳入国家非遗对马来西亚华人社会的影响

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世界民族 2022年第3期 84-93页

作者：胡超广州美术学院新美术馆学研究中心 510006

马来西亚新山市的“游神”,从华人民俗成为国家非遗,反映了华人作为当地“华族”的身份被广泛接纳。但是,作为华族身份的符号,游神“上升”为国家文化遗产之后也面临着新的挑战:如何保留华人独特的民族文化身份,如何避免民族文化符号被... 详细信息

马来西亚新山市的“游神”,从华人民俗成为国家非遗,反映了华人作为当地“华族”的身份被广泛接纳。但是,作为华族身份的符号,游神“上升”为国家文化遗产之后也面临着新的挑战:如何保留华人独特的民族文化身份,如何避免民族文化符号被消解进而损害民族的凝聚力和认同,以及最终削弱游神作为少数民族的抗衡力量等。这一新变化对华人身份认同的影响,表现在政府的介入、商业化增强、民族文化色彩减弱、以及民俗活动的文化内涵改变等多个方面。新山游神面临的挑战反映出文化传承和民族身份认同之间的关系,有助于认识海外华人社群发展的新形势。

关键词：马来西亚非物质文化遗产游神华人身份国民身份

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