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Chinese Physics B 2019年第1期28卷 171-177页

作者： y M Lu C Li X H Chen S Han P J Cao F Jia y X Zeng X K Liu w y xu w J Liu D L Zhu College of Materials Science and Engineering Shenzhen Key Laboratory of Special Functional MaterialsShenzhen Engineering Laboratory for Advanced Technology of CeramicsGuangdong Research Center for Interfacial Engineering of Functional MaterialsShenzhen UniversityShenzhen 518060China

Gallium oxide(Ga_2O_3) thin films were deposited on a-Al2O3(1120) substrates by pulsed laser deposition(PLD) with different oxygen pressures at 650?C. By reducing the oxygen pressure, mixed-phase Ga_2O_3 films with α and β phases can be obtained, and on the basis of this, mixed-phase Ga_2O_3 thin film solar-blind photodetectors(SBPDs) were *** the responsivities of the mixed-phase Ga_2O_3 SBPDs and the single β-Ga_2O_3 SBPDs at a bias voltage of 25 V,it is found that the former has a maximum responsivity of approximately 12 A/w, which is approximately two orders of magnitude larger than that of the latter. This result shows that the mixed-phase structure of Ga_2O_3 thin films can be used to prepare high-responsivity SBPDs. Moreover, the cause of this phenomenon was investigated, which will provide a feasible way to improve the responsivity of Ga_2O_3 thin film SBPDs.

关键词： Ga2O3 mixed-phase solar-blind photodetector pulsed laser deposition

The magnetic local time distribution of ring current during the geomagnetic storm

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The magnetic local time distribution of ring current during ...

Solar wind dependence of energy coupling between solar wind and magnetosphere during intense northward IMFs

中国科学院地质与地球物理研究所2013年度（第13届）学术年会

作者： X.D.Zhao A.M.Du w.y.xu Institute of Geology and Geophysics Chinese Academy of Sciences Institute of Geophysics China Earthquake Administration

The magnetic local time distribution of the ring current during 879 geomagnetic storms(identified by SyMH < -30 nT) in the 23rd solar cycle(1996-2006) was investigated by using 23 mid-low latitude ground-based *** sto... 详细信息

The magnetic local time distribution of the ring current during 879 geomagnetic storms(identified by SyMH ycle(1996-2006) was investigated by using 23 mid-low latitude ground-based *** storms are divided into eight different classes with a step of 20 nT for the statistical *** each class,the dusk side events,for which the H component minimum located in the dusk sector is mostly corresponding to the UT of minimum SyMH index,are about 59.5% of the total *** the noon side events are about 20.0%,the night side events are about 18.7%, and the dawn side events are about 1.8%.The H component distributions with MLT indicate that the magnetic field disturbance during the magnetic storm events is not only related to the symmetrical ring current,but also to the other current,mainly the partial current.A further statistical study of the dusk side events shows that both the symmetric and partial ring currents enhance accompanied by the increase in the storm class during the main *** the partial ring current makes a greater contribution to the main phase of the *** to the interplanetary parameters,the distinction of the solar wind velocity V is more obvious than the interplanetary magnetic field B for the dusk side events in different *** comparisons between dusk side and other side events in the same class indicate that besides the solar wind velocity V,the interplanetary magnetic field B also affects on the disturbance of ring current on the ground in MLT.

关键词： Ring current Storm Magnetic local time Magnetic field

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Solar wind dependence of energy coupling between solar wind ...

SCHIZOPHRENIA DIAGNOSTIC CRITERIA: COMPARISONS AND ANALySES

中国科学院地质与地球物理研究所2013年度（第13届）学术年会

作者： H.Luo G.X.Chen A.M.Du w.y.xu Beijing National Observatory of Space Environment Institute of Geology and GeophysicsChinese Academy of Sciences

we statistically study the solar wind dependence of the magnetospheric activities during intense northward interplanetary magnetic fields(IMFs) events(Bz > 10 nT,last over 3 h).It was found that the energy coupling between solar wind and magnetosphere during intense northward IMFs was mainly controlled by solar wind velocity and IMF clock angle(θ).A northward IMF coupling function was derived based on the dimensional analysis and quantitative analysis of the solar wind parameters and the geomagnetic *** was shown that whenθ>～45°,the energy input increases obviously asθ*** importantly,it was also found that the relative importance between the viscous interaction and the IMF |By| effect in controlling the energy input into the magnetosphere during intense northward IMFs mainly depends on IMF clock *** viscous interaction will outweigh the IMF |By| effect in the northward IMF events with 0 ward IMF events withθ>～75°,the IMF \By\ effect may be more important than the viscous interaction.

关键词： Energy coupling Northward interplanetary magnetic field Viscous interaction IMF |By| effect

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中华医学杂志(英文版) 1988年第10期101卷 775-775页

作者： F C yao M Kang w y xu S S Xing Third People's Hospital Huaiyin City Jiangsu

In l00 schizophrenic inpatients diagnosed by CMA criteria (1984), the clinical manifestations were compared to the schizophrenia diagnostic criteria proposed by Bleuler, Schneider, Carpenter, St. Louis Feiglmer, Taylor, Spitzer, DSM-III, xu you-xin, etc. The advantages and disadvantages of these criteria were evaluated. , we suggest that the diagnostic criteria for schizophrenia should be improved. The modified CMA criteria for schizophrenia is valuable for clinical reference but requires further improvement of its validity and reliability.

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IMMUNOLOGICAL STUDIES ON THROMBOANGIITIS OBLITERANS

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中华医学杂志(英文版) 1989年第2期102卷 136-136页

作者： P Zheng P B Fu w C wang w y xu X M Tang M ye Z R Chen Department of Surgery Ruijin Hospital Second Medical University Shanghai Institute of Immunology epartment of Surgery Ruijin Hospital Second Medical University Electronic Microscopy Laboratory Shanghai Second Medical University Pediatric Immunology Laboratory Ruijin Hospital Shanghai Second Medical University Department of Pathology Ruijin Hospital Shanghai Second Medical University Shanghai

Using humoral immunity (γ-globulin 18 cases, IgG, IgA, IgM each 30 cases, CH50, C3, C4 each 29 cases and CIC 31 cases), cellular immunity (E-RFC 68 cases, As 30 cases, SmIg, SmIgG each 18 cases, IMIT 30 cases) and immunopathological manifestations (light microscope, fluorescence microscope, transmitted electron microscope each 7 cases) as indices, we studied the immunological changes of "progressing", "remittent" and "stabilized" groups of patients with thromboangiitis obliterans (TAO) in different stages. Humoral immunity indicated that γ-globulin, immune complex and IgG were all increased; cellular immunity indicated that the rate of T cells and suppressor cells was declined, while that of B cells was elevated. Immunopathologically, under light microscope all the layers of involved vessels were infiltrated with neutrophils, lymphocytes and monocytes; under flourescene and electron microscope, immune complexes were found in the involved vessel walls. Our preliminary results suggest that TAO is an autoimmune disease relevant to antigen-antibody complex.

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Aquaporin-4-IgG-seropositive neuromyelitis optica spectrum disorders:progress of experimental models based on disease pathogenesis

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Neural Regeneration Research 2025年第2期20卷 354-365页

作者： Li xu Huiming xu Changyong Tang Department of Neurology The Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhouGuangdong ProvinceChina

Neuromyelitis optica spectrum disorders are neuroinflammatory demyelinating disorders that lead to permanent visual loss and motor *** date,no effective treatment exists as the exact causative mechanism remains ***,experimental models of neuromyelitis optica spectrum disorders are essential for exploring its pathogenesis and in screening for therapeutic *** most patients with neuromyelitis optica spectrum disorders are seropositive for IgG autoantibodies against aquaporin-4,which is highly expressed on the membrane of astrocyte endfeet,most current experimental models are based on aquaporin-4-IgG that initially targets *** experimental models have successfully simulated many pathological features of neuromyelitis optica spectrum disorders,such as aquaporin-4 loss,astrocytopathy,granulocyte and macrophage infiltration,complement activation,demyelination,and neuronal loss;however,they do not fully capture the pathological process of human neuromyelitis optica spectrum *** this review,we summarize the currently known pathogenic mechanisms and the development of associated experimental models in vitro,ex vivo,and in vivo for neuromyelitis optica spectrum disorders,suggest potential pathogenic mechanisms for further investigation,and provide guidance on experimental model *** addition,this review summarizes the latest information on pathologies and therapies for neuromyelitis optica spectrum disorders based on experimental models of aquaporin-4-IgG-seropositive neuromyelitis optica spectrum disorders,offering further therapeutic targets and a theoretical basis for clinical trials.

关键词： aquaporin-4 experimental model neuromyelitis optica spectrum disorder pathogenesis

Dependence of the IMF sector structure on the solar dipole tilt angle

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Dependence of the IMF sector structure on the solar dipole t...

Mitophagy in acute central nervous system injuries:regulatory mechanisms and therapeutic potentials

中国科学院地质与地球物理研究所2008学术年会

作者： A.M.Du,w.y.xu,and X.S.Feng 1 Institute of Geology and Geophysics,Chinese Academy of Sciences, Beijing,China. 2 State Key Laboratory for Space weather,Chinese Academy of Sciences,Beijing,China.

[1]The quasiperiodic variations of the interplanetary magnetic field(IMF) sector structure at the ACE satellite(L1) are investigated using power spectrum *** appears that the two-sector structure of the IMF dominates during the solar maximum, lasting 3 years from 2000 through 2003,and the four-sector structure dominates during the solar activity minimum.A possible explanation is introduced for this phenomenon in which the IMF sector structures vary with the tilt angle of the heliospheric current sheet (HCS) with respect to the solar rotation *** the solar activity maximum,the HCS is perpendicular to the ecliptic *** the spacecrafts at L1 point are expected to pass through the HCS only twice in one solar rotation,which gives rise to the observed two-sector structure of the *** the other hand,during the solar activity minimum,the HCS is nearly parallel to the ecliptic plane,and the polarity of IMF Bx changes several times in one solar rotation due to the wavy nature of the HCS, which may lead to the observed four-sector structure.

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Neural Regeneration Research 2025年第9期20卷 2437-2453页

作者： Siyi xu Junqiu Jia Rui Mao Xiang Cao yun xu Department of Neurology Nanjing Drum Tower HospitalClinical College of Jiangsu UniversityNanjingJiangsu ProvinceChina Department of Neurology Nanjing Drum Tower HospitalChinese Academy of Medical Science&Peking Union Medical CollegeNanjingJiangsu ProvinceChina Department of Neurology Nanjing Drum Tower HospitalAffiliated Hospital of Medical SchoolNanjing UniversityNanjingJiangsu ProvinceChina State Key Laboratory of Pharmaceutical Biotechnology and Institute of Translational Medicine for Brain Critical Diseases Nanjing UniversityNanjingJiangsu ProvinceChina Jiangsu Key Laboratory for Molecular Medicine Medical School of Nanjing UniversityNanjingJiangsu ProvinceChina Nanjing Neurology Medical Center NanjingJiangsu ProvinceChina

Acute central nervous system injuries,including ischemic stro ke,intracerebral hemorrhage,subarachnoid hemorrhage,traumatic brain injury,and spinal co rd injury,are a major global health *** optimal therapies and improving the long-term neurological functions of patients with acute central nervous system injuries are urgent *** are susceptible to damage after acute central nervous system injury,and this leads to the release of toxic levels of reactive oxygen species,which induce cell ***,a selective form of autophagy,is crucial in eliminating redundant or damaged mitochondria during these *** evidence has highlighted the significant role of mitophagy in acute central nervous system *** this review,we provide a comprehensive overview of the process,classification,and related mechanisms of *** also highlight the recent developments in research into the role of mitophagy in various acute central nervous system injuries and drug therapies that regulate *** the final section of this review,we emphasize the potential for treating these disorders by focusing on mitophagy and suggest future research paths in this area.

关键词： autophagy intracerebral hemorrhage ischemic stroke mitochondria mitochondrial biogenesis mitochondrial quality control mitophagy spinal cord injury subarachnoid hemorrhage traumatic brain injury

Inspires effective alternatives to backpropagation:predictive coding helps understand and build learning

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Neural Regeneration Research 2025年第11期20卷 3215-3216页

作者： Zhenghua xu Miao yu yuhang Song School of Health Sciences and Biomedical Engineering Hebei University of TechnologyTianjinChina Department of Computer Science University of OxfordOxfordUK

Artificial neural networks are capable of machine learning by simulating the hiera rchical structure of the human *** enable learning by brain and machine,it is essential to accurately identify and correct the prediction errors,referred to as credit assignment(Lillicrap et al.,2020).It is critical to develop artificial intelligence by understanding how the brain deals with credit assignment in neuroscience.

关键词： assignment learning enable

Copper-catalyzed C–H bond functionalization enabled by programmed alternating current

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Science China Chemistry 2025年第01期 10-11页

作者： Zhoumei Tan Kun xu Chengchu Zeng Beijing Key Laboratory of Environmental and Viral Oncology College of Chemistry and Life Science Beijing University of Technology

Synthetic electrochemistry has been selected as one of the Top Ten Emerging Technologies in Chemistry in 2023 by International Union of Pure and Applied Chemistry (IUPAC)[1]. It has emerged as a sustainable platform for organic synthesis and has exhibited a wide range of applications from academia to industry [2]. However, electrosynthesis has been predominantly performed by using direct current (DC).

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