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Journal of Central South University 2021年第6期28卷 1724-1736页

作者： GUO yu-xia ZHAO Yong-hui WANG sheng-wei FENG Guo-rui ZHANG yu-jiang RAN Hong-yu College of Mining Engineering Taiyuan University of TechnologyTaiyuan 030024China Shanxi Province Research Centre of Green Mining Engineering Technology Taiyuan 030024China

Residual coal pillars play an important role in mining the adjacent coal seam safely,managing the gobs and maintaining the stability of abandoned coal *** height to diameter ratio(H/D)affects the stability of residual coal *** this study,uniaxial compressive tests of coal specimens with five H/D(2.0,1.5,1.0,0.8 and 0.6)were performed,and the stress,strain and acoustic emission(AE)were *** show that the uniaxial compressive strength(UCS)and peak strain increase with H/D *** empirical equation is proposed to calculate the UCS based on the H/*** AE activities during coal failure process can be separated into four *** span of quiet period and rapid decline period shorten with H/D *** smaller the H/D is,the more complicated the failure characteristics of coal will *** failure form of coal with H/D of 2.0,1.5,and 1.0 is primarily shear failure,while splitting failure along the axial direction is the mainly mode when H/D is 0.8 or *** initiation,expansion,aggregation and connection of micro-cracks can be reflected by the real-time spatial evolution of AE event points.

关键词： residual coal pillar height to diameter ratio uniaxial compression acoustic emission micro-crack evolution

Galectin-1 prolongs survival of mouse liver allografts from Flt3L-pretreated donors

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Galectin-1 prolongs survival of mouse liver allografts from ...

Ductopenia and cirrhosis in a 32-year-old woman with progressive familial intrahepatic cholestasis type 3: A case report and review of the literature

2012中国器官移植大会

作者： yuFu Ye,sheng Yan,Guoping Jiang,Lin Zhou,Haiyang Xie,Xiaojun Xie,Xiaobo yu,yuan ding,Shusen Zheng 浙江大学医学院附属第一医院肝胆胰外科卫生部多器官联合移植研究重点实验室

【Background J Liver allografts are spontaneously accepted across MHC barriers in *** mechanisms underlying this phenomenon remain poorly ***-1,an endogenous lectin expressed in lymphoid organs,plays a pivital role in maintaining central and peripheral *** study was to investigate the role of galectin-1 inspontaneous tolerance of liver allografts in mice,and to evaluate the therapeutic effects of galectin-1 on liver allograft rejection induced by donor Flt3 Lpretreatment.

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World Journal of Gastroenterology 2018年第41期24卷 4716-4720页

作者： You-Wen Tan Hai-Lei Ji Zhong-Hua Lu Guo-Hong Ge Li Sun Xin-Bei Zhou Jian-Hui sheng yu-Hua Gong Department of Hepatology The Third Hospital of Zhenjiang Affiliated Jiangsu University Department of Liver Disease Wuxi No.5 People’s Hospital Affiliated to Jiangnan University

Progressive familial intrahepatic cholestasis type 3 is caused by a mutation in the ATP-binding cassette, subfamily B, member 4 (ABCB4) gene encoding multidrug resistance protein 3. A 32-year-old woman with a history of acute hepatitis at age 9 years was found to have jaundice during pregnancy in 2008, and was diagnosed as having intrahepatic cholestasis of pregnancy. In 2009, she underwent cholecystectomy for gallstones and chronic cholecystitis. However, itching and jaundice did not resolve postoperatively. She was admitted to our hospital with fatigue, jaundice, and a recently elevated γ-glutamyl transpeptidase level. Liver biopsy led to the diagnosis of biliary cirrhosis with ductopenia. Genetic testing revealed a pathogenic heterozygous mutation, ex13 c.1531G > A (p.A511 T), in the ABCB4 gene. Her father did not carry the mutation, but her mother's brother carried the heterozygous mutation. We made a definitivediagnosis of familial intrahepatic cholestasis type 3. He symptoms and liver function improved after 3 mo o treatment with ursodeoxycholic acid.

关键词： Cirrhosis Progressive familial intrahepatic cholestasis type 3 Case report

Splitting Behaviour of Implanted MeV Au^(+)Ions in LiB_(3)O_(5)

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Chinese Physics Letters 2000年第1期17卷 40-42页

作者： WANG Ke-ming SHI Bo-rong Nelson Cue LU Fei WANG Feng-xiang XIE Zhao-xia SHEN ding-yu LIU Yao-gang Department of Physics Shandong UniversityJiJnan 250100 Department of Physics Hong Kong University of Science and TechnologyHong Kong Laboratory of Heavy Ion Physics Peking UniversityBeijing 100871 Institute of Crystal Materials Shandong UniversityJi'nan 250100

The diffusion behaviour of 1.0 and 2.0MeV Au^(+)implanted into LiB_(3)O_(5)single crystal has been studied by the Rutherford backscattering of 2.1 MeV He *** was performed at temperatures of 600,700,and 800℃each for 30 *** results show that the diffusion behaviour is quite different in two *** LiB_(3)O_(5),the depth distribution of the 1.0MeV Au is nearly Gaussian and becomes bimodal after annealing at 800℃for 30 *** in the case of 2.0 MeV,the depth distribution of as implanted Au^(+)in LiB_(3)O_(5)has splitting *** 800℃for 30 min annealing,there is no obvious diffusion *** precise interpretation is needed.

关键词： diffusion annealing behaviour

A M?ssbauer investigation of nano-NiFe alloy/expanded graphite for electromagnetic shielding

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Nuclear Science and Techniques 2016年第6期27卷 155-160页

作者： Wei Liu yu-An Huang Lai Wei Ya Zhai Rui-Li Zhang Tao Tang Run-sheng Huang School of Physics Nanjing UniversityNanjing 210093China Department of Material Engineering Nanjing Institute of TechnologyNanjing 211167China Department of Physics Southeast UniversityNanjing 211102China

A new material is prepared by impregnating the expanded graphite(EG) into ethanol solutions of metal acetate and then drying and reducing it in *** contains the EG and the nanoparticles of the magnetic Ni–Fe alloy for the electromagnetic *** morphology,phase structure,magnetic properties,and electromagnetic shielding effectiveness(SE) are investigated in our *** shows that the morphology,the phase structure,and the magnetic property of the composite can be modified by altering the Ni content in the alloy ***,the SE can be enhanced to 54–70 d B at low frequencies(300 kHz–10 MHz) by dispersing the magnetic nanoparticles onto EG.

关键词：电磁屏蔽效能膨胀石墨纳米颗粒铁合金 NiFe 磁性纳米粒子金纳米粒子磁性能

Synthesis of thiol-functionalized TiO_2 nanocomposite and photocatalytic degradation for PAH under visible light irradiation

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Chinese Chemical Letters 2009年第11期20卷 1366-1370页

作者： Long Liu Jia Hui Kou Da Meng Guo Jing Yang Hong Lin Liu Hong Xia yu sheng Chu Ke Ren Jiang Ying Wang Zhi Gang Zou Eco-materials and Renewable Energy Research Center (ERERC) National Laboratory of Solid State Microstructures Nanjing University Nanjing 210093 China School of Chemistry and Chemical Engineering Nanjing University Nanjing 210093 China School of Environment Nanjing University Nanjing 210093 China

In this paper, a thiol-functionalized nanophotocatalyst MPTES/TiO2 was first synthesized by one-pot method using P123 as a template. X-ray diffraction confirms the complete anatase crystalline of thiol-functionalized TiO2, N2 adsorption-desorption isotherm demonstrated that these materials possess high surface area and mesoporous structure. The results of XPS show that MPTES has been successfully polymerized in mesoporous structured TiO2. The photodegradation of phenanthrene （PHE） was investigated under visible light irradiation （λ 〉 420 nm） to evaluate the photocatalytic activity of these materials. Based the experiment results of GC-Mass analysis, a possible mechanism was proposed.

关键词： Thiol-functionalized TiO2 Photocatalysis Degradation

Severe congenital hemolytic anemia caused by a novel compound heterozygous PKLR gene mutation in a Chinese boy

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Chinese Medical Journal 2019年第1期132卷 92-95页

作者： Peng-Peng Liu Hu-Qing ding Shen-Zhen Huang sheng-Yong Yang Ting Liu Department of Hematology Hematologic Research LaboratoryWest China Hospital of Sichuan University.ChengduSichuan 610041China Sichuan Hua Xi Kindstar Medical Diagnostic Centre ChengduSichuan 610000China State Key Laboratory of Cancer Biotherapy Sichuan UniversityChengduSichuan 610041China

To the Editor:Congenital hemolytic anemia (CHA) can be caused by the defect of any component in red blood cell (RBC),including hemoglobinopathies,membrane and cytoskeleton defects,and metabolic enzymopathies *** it is... 详细信息

关键词： Chinese boy PKLR gene mutation Severe congenital hemolytic anemia

改良Weibull参数法评估药物平均溶出曲线的相似度

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中国药学杂志 2016年第21期51卷 1880-1885页

作者：耿东升丁利新疆军区联勤部药品仪器检验所乌鲁木齐830063 乌鲁木齐市友谊医院乌鲁木齐830049

目的探索应用改良Weibull拟合参数法评估药物平均溶出/释放曲线的相似度。方法选取3种代表药品,使用光纤药物溶出度实时测定仪,分别在线监测各批药品参比与受试制剂随时间变化的药物累积溶出/释放百分率,计算各药品参比与受试制剂不同... 详细信息

目的探索应用改良Weibull拟合参数法评估药物平均溶出/释放曲线的相似度。方法选取3种代表药品,使用光纤药物溶出度实时测定仪,分别在线监测各批药品参比与受试制剂随时间变化的药物累积溶出/释放百分率,计算各药品参比与受试制剂不同时刻药物平均累积溶出/释放百分率并描绘药物溶出/释放曲线;采用改良Weibull模型拟合时间-药物平均累积溶出/释放百分率数据,并提取拟合参数c、Ti、b、a及其95%的置信区间。观察受试与参比或参照制剂实际平均溶出曲线的变异,以及采用改良Weibull拟合参数法评估受试与参比或参照制剂平均溶出曲线的相似度。结果实验用缓释制剂的药物平均累积释放百分率经改良Weibull模型拟合后,受试与参比或参照制剂相应的拟合参数无明显差异,两条溶出曲线相似度很高;实验用非修饰制剂,无论受试与参比制剂的剂型是否相同,它们的药物平均累积释放百分率经改良Weibull模型拟合后,受试与参比或参照制剂相应的拟合参数均存在不同程度的差异,受试与参比或参照制剂的溶出曲线相似度较低。结论采用改良Weibull拟合参数法评估药物平均溶出/释放曲线的相似度,拟合优度好,可以量化。

关键词：药物平均溶出曲线改良Weibull模型拟合参数相似度

P波段SAR射频干扰信号分析及抑制方法研究

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宇航学报 2012年第6期33卷 788-795页

作者：丁斌梁兴东向茂生中国科学院电子学研究所北京100190 中国科学院研究生院北京100049

分析了实测P波段SAR静默接收数据,研究了模拟电视信号的频谱特性。针对P波段SAR回波中的模拟电视干扰信号,提出了一种新的干扰抑制方法。通过在时域拼接多个脉冲的回波数据增加模拟电视信号的观测时间以提高频率分辨率,进而在距离频域... 详细信息

分析了实测P波段SAR静默接收数据,研究了模拟电视信号的频谱特性。针对P波段SAR回波中的模拟电视干扰信号,提出了一种新的干扰抑制方法。通过在时域拼接多个脉冲的回波数据增加模拟电视信号的观测时间以提高频率分辨率,进而在距离频域对其准确识别。根据模拟电视信号的频谱特征,在距离频域构造滤波器组滤除模拟电视信号的离散谱线,保留了谱线间SAR回波信号的频谱分量。实际回波数据的成像处理结果验证了方法的有效性。

关键词： P波段合成孔径雷达干扰抑制模拟电视信号射频干扰信号

Nickel Complexes with Non-innocent Ligands as Highly Active Electrocatalysts for Hydrogen Evolution

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Chinese Journal of Chemistry 2018年第12期36卷 1161-1164页

作者： Zhixin Chen Tao Wang Tingting Sun Zhiyong Chen Tian sheng yu-Hao Hong Zi-Ang Nan Jun Zhu Zhi-You Zhou Haiping Xia Shi-Gang Sun Collaborative Innovation Center of Chemistry for Energy Materials State Key Laboratory for Physical Chemistry of Solid SurfacesCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamenFujian 361005China

Rational design of a molecular catalyst for a hydrogen evolution reaction (HER) with both high rates and low overpotential remains a challenge. Here we report a series of Ni‐based catalysts incorporating non‐innocent ligands and aimed at reduction of the overpotential by reserving electrons in the ligand, which could decouple the correlation between metal center reduction and metal hydride formation. The third‐order rate constant of our catalysts can be increased by 2 orders of magnitude without increase of overpotential by altering the substituents in the imide since the electronic effect of substituents can change the kinetics of metal hydride formation dramatically. Furthermore, constructing a proton shuttle in the ligand further improves the activity. The catalyst with both of these features can catalyze HER at a turnover frequency of 2572 s –1 with low concentrations of acid and an extremely high third‐order rate constant of 2.7×10 6 M –2 ·s –1 at a low overpotential.

关键词： hydrogen evolution molecular electrocatalysis non‐innocent ligand electrochemistry homogeneous catalysis N ligands