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Acta Geochimica 2024年第4期43卷 707-718页

作者： jun-xiao Ma Guang-shu Yang Yong-feng Yan xiao-Fei Xu Yun-hua Ren Hui Zhao xiao-jun zheng Yuan Qin Faculty of Land Resources Engineering Kunming University of Science and TechnologyKunming 650093China Geological Team 306 of Yunnan Non-Ferrous Metals Geological Bureau Kunming 650217China Yunnan Provincial Bureau of Non-Ferrous Geology Kunming 650051China

The Dahongshan Group,situated at the southwestern margin of the Yangtze Block,represents a geological unit characterized by relatively high-grade metamorphism in the *** paper investigates the garnet-biotite schist from the Laochanghe Formation of the Dahongshan Group,employing an integrated approach that includes petrological analysis,phase equilibrium modeling,and zircon U-Pb *** schist is mainly composed of garnet,biotite,plagioclase,quartz,rutile,and *** equilibrium modeling revealed the peak metamorphic conditions of 8-9 kbar and 635-675°*** further integrating the prograde metamorphic profile of garnet and geothermobarometric results,a clockwise P-T metamorphic evolution path is constructed,which includes an increase in temperature and pressure during the prograde ***-ICP-MS zircon U-Pb dating and zircon Ti thermometry constrains the post-peak metamorphic age of 831.2±7.2 *** with previously reported results,it is revealed that the southwestern margin of the Yangtze Block experienced a large-scale regional metamorphism during the Neoproterozoic(890-750 Ma),which is related to the collisional orogenic *** may be associated with the late-stage assembly of the Rodinia supercontinent or with local compression and subduction processes during the breakup of the Rodinia supercontinent.

关键词： Southwestern Yangtze Block Dahongshan Group Phase equilibrium modeling Zircon U-Pb dating Neoproterozoic metamorphism

Synthesis and Crystal Structure of N-[4-(4-Methyl-phenylsulfamoyl)-phenyl]- 4-methyl-1,2,3-thiadiazole-5-carboxamide

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Chinese Journal of Structural Chemistry 2007年第5期26卷 501-504页

作者： WANG Jian-Guo xiao Yong-jun Li zheng-Ming SONG Hai-Bin （Elemento-organic Chemistry hlstitute State Key Laboratory ofElemento-organic Chemistry Nankai University Tianjin 300071 China

The crystal structure of the title compound （C17H16N4O3S2, Mr = 388.46） has been determined by single-crystal X-ray diffraction. The crystal belongs to monoclinic, space group P21/c with a = 13.688（2）, b = 16.704（3）, c = 8.3308（12）A, β = 99.474（6）°, V = 1878.8（5） A^3, Mr = 388.46, Z = 4, Dc = 1.373 g/cm3, μ = 0.308 mm^–1, F（000） = 808, R = 0.0389 and wR = 0.0917. X-ray analysis reveals that the crystal structure involves intermolecular N–H…O and N–H…N hydrogen bonds, which link the molecules into a layer parallel to the ac plane.

关键词： X-ray diffraction crystal structure synthesis

Registering Different DBMSs to Panorama with CORBA

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Wuhan University Journal of Natural Sciences 2001年第Z1期6卷 423-431页

作者： Sarem Mudar, Li Rui\|xuan, xiao Wei\|jun, Lu zheng\|ding School of Computer Science, Huazhong University of Science and Technology,Wuhan 430074, China School of Computer Science Huazhong University of Science and Technology Wuhan China

Recently, there is an increasing use of CORBA implementation in developing multidatabase systems. MIND and Panorama are some of the examples of multidatabase prototypes that have been implemented on the top of CORBA compliant namely ObjectBroker and VisiBroker respectively. They both aim to achieve interoperability among Oracle, Sybase and other different DBMSs through the registration of these DBMSs to them using CORBA. This registration to a CORBA based multidatabase system offers an advanced way in achieving *** first introduce Panorama multidatabase system and discuss the basic implementation decisions in registering different DBMSs using the CORBA compliant ORB, namely VisiBroker to this system. Then, it aims to discuss the method we've used in registering different DBMSs to our designed multidatabase system Panorama. A detailed discussion about the registration of Oracle8 and Sybase is given. And finally, a conclusion and the future work for this system have been given.

关键词： heterogeneity CORBA interoperability multidatabase system

Hole density dependent magnetic structure and anisotropy in Fe-pnictide superconductor

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Chinese Physics B 2023年第9期32卷 463-467页

作者：岳远放黄忠兵黎欢明星郑晓军 College of Science Guilin University of TechnologyGuilin 541004China Key Laboratory of Low-dimensional Structural Physics and Application Education Department of Guangxi Zhuang Autonomous RegionGuilin 541004China Faculty of Physics Hubei UniversityWuhan 430062China

The competition between different magnetic structures in hole-doped Fe-pnicitides is explored based on an extended five-orbital Hubbard model including long-range Coulomb *** results show that the stabilized magnetic structure evolves with increasing hole doping ***,the stripe antiferromagnetic phase dominates at zero doping,while magnetic structures with more antiferromagnetic linking numbers such as the staggered tetramer,staggered trimer,and staggered dimer phases become energetically favorable as the hole density *** a certain doping level,energy degeneracy of different magnetic structures appears,indicating strong magnetic frustration and magnetic fluctuations in the *** suggest that the magnetic competition induced by the hole doping may explain the fast decrease of the Neel temperature TNand the moderately suppressed magnetic moment in the hole doped ***,our results show a sign reversal of the kinetic energy anisotropy as the magnetic ground state evolves,which may be the mechanism behind the puzzling sign reversal of the in-plane resistivity anisotropy in hole-doped Fe-pnicitides.

关键词： iron-pnictide superconductors magnetic structure resistivity anisotropy

图像配准中方向场正则化模型的适定性和收敛性

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数学学报（中文版） 2021年第3期64卷 385-404页

作者：郑晓俊郇中丹刘君海南师范大学初等教育学院海口571158 北京师范大学数学科学学院北京100875

图像配准是图像处理的一个重要方面.方向场正则化模型是现有配准方法中效果相对突出的模型.然而它仍然无法正确对齐所有感兴趣的区域.因此,本文从理论角度研究方向场正则化模型,希望寻找模型设计可能存在的问题.由于模型中有一个直接变... 详细信息

图像配准是图像处理的一个重要方面.方向场正则化模型是现有配准方法中效果相对突出的模型.然而它仍然无法正确对齐所有感兴趣的区域.因此,本文从理论角度研究方向场正则化模型,希望寻找模型设计可能存在的问题.由于模型中有一个直接变量和一个由直接变量通过常微初值问题确定的间接变量,所以它是数学上的一类新颖的正则化模型.方向场正则化模型定义为min_(v){α||v||_(H)^(2)+ρ(T(y^(v)(τ)),S)},其中T和S分别是模板图像和参考图像,y^(v)(τ):x■y^(v)(τ;0,x)是由初值问题dy/ds=v(s,y),y(0)=x的解y^(v)(s;0,x)定义的变换,ρ是相似性泛函,α>0是正则化参数,H是希尔伯特空间.本文首先证明了方向场正则化模型有稳定解,然后证明了其收敛性.结合y^(v)(τ)与v的收敛关系和正则化问题的经典理论可得上述结论.然而,在现有理论下,ρ,S和T需满足较强的条件.本文通过充分利用y^(v)(τ)的性质,提出了关于ρ,S和T的相对弱的条件.此外,我们还验证了配准常用的3个相似性泛函都满足所提条件.

关键词：方向场正则化模型存在性稳定性收敛性图像配准

Marginal living donor in kidney transplantation： experience in a Chinese single center

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Chinese Medical Journal 2013年第15期126卷 2810-2814页

作者： LI Gang WANG Yun-peng MA Lu-lin ZHANG Jing ZHANG Hong-xian HUANG Yi HOU xiao-fei xiao Chun-lei ZHAO Lei WANG Guo-liang TIAN xiao-jun QIU Min zheng Yi Peking Univ Hosp 3 Dept Urol Beijing 100191 Peoples R China Navy Gen Hosp Dept Special Med Beijing 100048 Peoples R China

Background Living donor kidney transplantation is becoming popular in China, whereas, in clinical situations, some kidney donors may be sub-optimal, namely marginal living donor. The present study aimed to evaluate the safety and efficacy of marginal living donor kidney transplantation in a Chinese single center. Methods Between January 2001 and December 2009, 888 kidney transplantations were performed in our center; 149 were living donor kidney transplantations. The living donors and recipients were followed up regularly after the operation. Of the living donors, 30 donors were marginal, who were older than 60 years or suffered from kidney anomaly or some benign diseases. Among the non-marginal living kidney transplantations, 58 donors and recipients had complete peri- operative and follow-up data. We compared the marginal and non-marginal living donor kidney transplantations with regard to donor age, follow-up period, donor＇s serum creatinine at the last follow-up, recipient＇s serum creatinine at the last follow-up, and graft survival at the last follow-up. Results The mean age of donors in the marginal and non-marginal living donors were （55＋9）（37-66） and （43＋12）（30- 59） years. The mean follow-up times of the marginal and non-marginal groups were （26.4＋13.4） months and （28.8＋14.8） months. The donor and recipient serum creatinine levels at the last follow-up were （1.16＋0.20） mg/dl and （1.30＋0.24） mg/dl in the marginal group, and （1.12＋0.32） mg/dl and （1.34＋0.32） mg/dl in the non-marginal group. Three recipients in the marginal group and five recipients in the non-marginal group had acute rejection episodes during the first year. Actuarial 3-year graft survival was 96.7% in the marginal group and 100% in the non-marginal group. No significant differences were detected between the two groups with regard to these data. Conclusion Utilization of highly selective marginal living donors can be a safe, feasible, and effective way for the treatment of patients with end

关键词： kidney transplantation marginal non-marginal living donor

Effect of cholesterol metabolism on hepatolithiasis

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World Journal of Gastroenterology 2025年第1期31卷 157-162页

作者： Lin zheng Zi-Yu Ye jun-Ji Ma Department of Gastroenterology The Second Hospital of Hebei Medical UniversityHebei Key Laboratory of GastroenterologyHebei Institute of GastroenterologyHebei Clinical Research Center for Digestive DiseasesNo.215 Heping West RoadShijiazhuang 050000Hebei ProvinceChina

Surgical intervention is currently the primary treatment for hepatolithiasis;how-ever,some patients still experience residual stones and high recurrence rates after *** metabolism seems to play an important role in hepatoli-thiasis pathogenesis.A high cholesterol diet is one of the significant reasons for the increasing incidence of ***,regular diet and appropriate medical intervention are crucial measures to prevent hepatolithiasis and reduce recurrence rate after *** dietary cholesterol and drugs that increase cholesterol stone solubility are key therapeutic approaches in treating *** article discusses the cholesterol metabolic pathways related to the pathogenesis of hepatolithiasis,as well as food intake and targeted therapeutic drugs.

关键词： Hepatolithiasis Cholesterol metabolism High-fat diet 3-hydroxy-3-methylglutaryl-coenzyme A reductase Interlobular bile duct

Clinical outcomes and immune reconstitution in 103 advanced AIDS patients undergoing 12-month highly active antiretroviral therapy

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Chinese Medical Journal 2006年第20期119卷 1677-1682页

作者： DAI Yi QIU Zhi-feng LI Tai-sheng HAN Yang ZUO Ling-yan XIE Jing MA xiao-jun LIU zheng-yin WANG Ai-xia Department of Infectious Diseases Peking Union Medical College Hospital Chinese Academy of Medical Sciences ＆ Peking Union Medical College Beijing 100730 China

Background Highly active antiretroviral therapy （HAART） produces profound suppression of HIV replication, substantial increase in CD4^＋ T cells, and partial reconstitution of the immune system. However, the numbers of subjects were small in previous Chinese studies. This study evaluated the efficacy and side effects of HAART in Chinese advanced AIDS patients.Methods One hundred and three antiretroviral drug naive AIDS patients were enrolled in this study and were divided into two groups by their baseline CD4^＋ count：〈 100 cells/μl or ≥ 100 cells/μl. Clinical, virological and immunological outcomes were monitored at baseline and at 1, 3, 6, 9 and 12 months during the course of treatment with HAART.Results One patient died and another was lost from the follow-up. For the remaining 101 HIV/AIDS patients at the 12th month during the HAART, the plasma viral load （VL） was reduced to （3.2±0.7） lg copies/ml, the CD4^＋ count increased to （168 ±51） cells/μl [among which the naive phenotype （CD45RA^＋CD62L^＋） increased to （49 ±27） cells/μl and the memory phenotype （CD45RA^-） increased to （119 ±55） cells/μl], and the percentage of CD4^＋CD28^＋ cells increased. At the same time, there was a significant reduction of CD8^＋ T cell activation. In the 69 patients with the baseline CD4^＋ count 〈100 cells/μl, 37 had a VL 〈50 copies/ml; while in the 34 patients with the baseline CD4^＋ count ≥ 100 cells/μl, 25 had a VL 〈50 copies/ml, the difference between the two groups was statistically significant. The CD4^＋ T cell count showed a two-phase increase during HAART and a significant positive correlation was shown between the change of CD4^＋ count and plasma VL. Over 12 months of HAART, 10 patients had gastrointestinal side effects, 13 peripheral neuritis, 7 hepatic lesions, 8 hematological side effects, 8 skin rashes, 10 lipodystrophy and 1 renal calculus.Conclusions Immune reconstitution as well as the significantly improved clinical outcomes is observed in Chinese advanced AIDS pat

关键词： acquired immunodeficiency syndrome antiretroviral therapy, highly active CD4 lymphocyte count immune reconstitution adverse effects

Actuator Fault Detection for Sampled-Data Systems in H_∞ Setting

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Journal of Shanghai Jiaotong university(Science) 2005年第2期10卷 131-134页

作者：杨晓军翁正新田作华 Dept. of Automation Shanghai Jiaotong Univ. Shanghai 200030 China

Actuator fault detection for sampled-data systems was investigated from the viewpoint of jump systems. With the aid of a prior frequency information on fault, such a problem is converted to an augmented H_∞ filtering problem. A simple state-space approach is then proposed to deal with sampled-data actuator fault detection problem. Compared with the existed approaches, the proposed approach allows parameters of the sampled-data system being time-varying with consideration of measurement noise.

关键词： sampled-data systems fault detection actuator Riccati equation

抑郁模型大鼠脑和心肌组织中一氧化氮一氧化氮合酶水平测定分析

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中华行为医学与脑科学杂志 2009年第7期18卷 589-590页

作者：肖正军王艺明扬州大学医学院附属扬州五台山医院心理科扬州225003 贵阳医学院附属医院心理科

目的检测抑郁模型大鼠脑和心肌组织中一氧化氮（NO）和一氧化氮合酶（NOS）水平，探讨抑郁模型大鼠脑和心肌组织损伤的可能机制。方法采用慢性轻度不可预见性的应激结合孤养制备抑郁模型，采用敞箱实验和糖水消耗实验观察大鼠行为改变... 详细信息

目的检测抑郁模型大鼠脑和心肌组织中一氧化氮（NO）和一氧化氮合酶（NOS）水平，探讨抑郁模型大鼠脑和心肌组织损伤的可能机制。方法采用慢性轻度不可预见性的应激结合孤养制备抑郁模型，采用敞箱实验和糖水消耗实验观察大鼠行为改变，以分光光度法检测大鼠脑和心肌组织中NO和NOS的水平。结果抑郁模型大鼠与正常对照组相比较，脑和心肌组织中NO[脑（8．97±2．22）μmol／g prot，（1．86±1．28）μmol／g prot；心肌（9．67±1．53）μmol／g prot，（2．67±1．08）μmol／g prot]和NOS[脑（9．50±1．89）U／mg prot，（2．3l±0．97）U／mg prot；心肌（11．20±1．47）U／mg prot，（2．53±0．97）U／mg prot]水平均显著增加，差异具有显著性（均P〈0．01）。结论抑郁模型大鼠脑和心肌组织中NO和NOS水平显著增加，并可能参与了抑郁模型大鼠脑和心肌组织的损伤。

关键词：抑郁脑心肌一氧化氮一氧化氮合酶