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Science China(Physics,Mechanics & Astronomy) 2014年第12期57卷 2246-2250页

作者： ZHANG Jun xiang JIANG Qi Chang LIU Chao ZHANG Xin Sheng LIU jin Hong The State Key Laboratory of Quantum Optics and Quantum Optics Devices Institute of Opto-Electronics Shanxi University

We experimentally demonstrate the propagation of light pulse from subluminal to superluminal light based on quantum coher- ence in a degenerate two-level atomic system in a Cs vapor cell. It is shown that the group velocity of light pulse can be switched from subluminal to superluminal propagation via changing the coupling field from a traveling wave to a standing wave, while can also be continuously manipulated by varying the intensity of two waves superposed to form a standing wave. The observed maximum delay and advance times are about 0.45 and 0.54 μs, corresponding to the group velocity of v8 = 168 km/s and ve =-138 krrt/s, respectively. This investigation may have the practical applications of devices for optical tunable delay lines, optical switching and optical buffering.

关键词： group velocity subluminal superluminal quantum coherence standing wave

Improved anticorrosion performance of mixed valence Mnmodified ZnO dilute magnetic solid solution with multilevel selfassembled network structure

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Nano Research 2022年第7期15卷 6590-6600页

作者： Yi-xiang Chen Dan Zhou Xiao-Jiao Guo Xiu Yang Si-Rui Zhao Yi Lu jin-Ku Liu Key Laboratory for Advanced Materials School of Chemistry and Molecular EngineeringEast China University of Science and TechnologyShanghai 200237China Material Corrosion and Protection Key Laboratory of Sichuan ProvinceZigong 643000China

The design and performance prediction of efficient anticorrosion materials is a work full of value,novelty,and *** this work,from the perspective of nanostructure and composition,ZnO-based dilute magnetic solid solution(DMSs)with hydrophobic micronano network structure was synthesized through the self-induced effect of raw materials,the impact-resistant network structure,complex micro-channels,and densely nested layers resisted electrolyte ***,the doping of mixed valence Mn element endowed the solid solution with dilute magnetic properties,so the Lorentz force from micromagnetic field changed the movement path of electrons produced by the anode reaction to improve the corrosion inhibition ability of the protective *** the synergy of morphology and magnetism,the corrosion resistance of the DMSs materials was 555.4%and 173.8%higher than that of epoxy resin and ZnO shielding layer,***,a valuable phenomenon was found that the photocatalytic property of DMSs materials was positively correlated with their corrosive *** conclusion,this research provided a novel design idea for new high-efficiency anticorrosion materials.

关键词： Mn-modified ZnO dilute magnetic solid solution network nanostructure anticorrosion functional nanomaterials

Landscape structure and land uese on county level in northeastern Yunnan Province of China——a case study of Huize County

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Journal of Environmental Sciences 2000年第3期12卷 355-360页

作者： WANG jin\|liang, NI Shao\|xiang (College of Geographical Science, Nanjing Normal University, Nanjing 210097, China) 南京师范大学江苏南京 2 1 0 0 97

Taking Huize County as an example, the paper analyzed the landscape structure(landscape element structure, landscape type structure, landscape spatial structure, landscape succession structure) and the relations between landscape structure and land use. It was pointed out that the agriculture should be developed in harmony with the landscape structure in the study area.

关键词： landscape structure land use agriculture Yunnan Province China

New-onset hyperglycemia immediately after liver transplantation:A national survey from China Liver Transplant Registry

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Hepatobiliary & Pancreatic Diseases International 2018年第4期17卷 310-315页

作者： Qing-Hong Ke Hai-Tao Huang Qi Ling Ji-Min Liu Si-Yi Dong xiang-xiang He Wen-jin Zhang Shu-Sen Zheng Department of Hepatobiliary Pancreatic Surgery First Affiliated HospitalZhejiang University School of MedicineHangzhou 310003China Key Laboratory of Combined Multi-Organ Transplantation Ministry of Public HealthHangzhou 310003China Department of Pathology and Molecular Medicine Faculty of Health SciencesMcMaster UniversityHamiltonON L8S 4L8Canada China Liver Transplant Registry Hangzhou 310003China

Background: New-onset hyperglycemia(NOH) is a common phenomenon after liver transplantation(LT),but its impact on clinical outcomes has not yet been fully assessed. We aimed to evaluate the etiology and prognosis of NOH within 1 month after ***: The data of 3339 adult patients who underwent primary LT from donation after citizen death between January 2010 and June 2016 were extracted from China Liver Transplant Registry database and analyzed. NOH was defined as fasting blood glucose ≥7.0 mmol/L confirmed on at least two occasions within the first post-transplant month with or without hypoglycemic ***: Of 3339 liver recipients, 1416(42.4%) developed NOH. Recipients with NOH had higher incidence of post-transplant complications such as graft and kidney failure, infection, biliary stricture, cholangitis,and tumor recurrence in a glucose concentration-dependent manner as compared to non-NOH recipients(P 10 min, cold ischemic time >10 h, anhepatic time >60 min, recipient model for end-stage liver disease score >30, moderate ascites and corticosteroid usage(P < 0.05). Liver enzymes(alanine aminotransferase and gammaglutamyltranspeptidase) on post-transplant day 7 significantly correlated with NOH(P < 0.001).Conclusions: NOH leads to increased morbidity and mortality in liver recipients. Close surveillance and tight control of blood glucose are desiderated immediately following LT particularly in those with delayed graft function and receiving corticosteroid. Strategic targeting graft ischemic injury may help maintain glucose homeostasis.

关键词： New-onset hyperglycemia Liver transplantation Surveillance Ischemic injury Homeostasis

Direct synthesis of imines by 9-azabicyclo-[3,3,1]nonan-N-oxyl/KOH-catalyzed aerobic oxidative coupling of alcohols and amines

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Chinese Chemical Letters 2018年第8期29卷 1269-1272页

作者： Yan Wan Jia-Qi Ma Chao Hong Mei-Chao Li Li-Qun jin Xin-Quan Hu Bao-xiang Hu wei-Min Mo Nan Sun Zhen-Lu Shen College of Chemical Engineering Zhejiang University of Technology

A simple and efficient method for preparation of imines by the oxidative coupling of benzyl alcohols with aromatic amines or aliphatic amines was developed. The reaction was catalyzed by 9-azabicyclo[3.3.1]nonan-N-oxyl（ABNO）/KOH with air as the economic and green oxidant. Under the optimal reaction conditions, a variety of imines were obtained in 80%-96% isolated yields.

关键词： Imines Benzyl alcohols Amines ABNO Air

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硫芥与活性硫醇化合物加合特性的分析研究

分析化学 2024年第7期52卷 995-1008页

作者：张梦瑶蔡金龙龚梦强徐斌吴剑峰吴海霞谢剑炜河北科技大学化学与制药工程学院军事医学研究院国家安全特需药品全国重点实验室北京工业大学环境与生命学部

硫芥是一类具有高反应活性的化学战剂，可造成多靶点损伤和糜烂，但其毒性及损伤机制至今尚未完全明确。本研究采用微量定向合成方法制备了8种芥子气类似物，并采用超高效液相色谱-高分辨质谱联用（UPLC-MS/HRMS）技术和高效液相色谱-... 详细信息

硫芥是一类具有高反应活性的化学战剂，可造成多靶点损伤和糜烂，但其毒性及损伤机制至今尚未完全明确。本研究采用微量定向合成方法制备了8种芥子气类似物，并采用超高效液相色谱-高分辨质谱联用（UPLC-MS/HRMS）技术和高效液相色谱-三重四极杆质谱联用（HPLC-MS/MS）技术考察了其分别在孵育液、血浆和细胞等基质中，与谷胱甘肽（GSH）、半胱氨酸（Cys）和N-乙酰半胱氨酸（NAC）形成加合物的速率与丰度差异。结果表明，在孵育液中，硫芥均可与这3种硫醇分子发生加合反应；在血浆基质中，Cys与硫芥加合物的含量高于GSH与硫芥加合物的含量，而NAC与硫芥的加合物的种类较少，这可能是由于NAC的含量较低或质谱响应差所导致；在染毒细胞基质中，GSH与硫芥加合物的含量高于Cys与硫芥加合物的含量，其原因是这3种硫醇分子的自身反应活性以及血浆和细胞中硫醇分子含量均存在显著差异。

关键词：硫芥加合物谷胱甘肽半胱氨酸 N-乙酰半胱氨酸

来源：博看期刊

Three-dimensional computed tomography reconstruction diagnosed digestive tract perforation and acute peritonitis caused by Monopterus albus:A case report

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World Journal of Gastrointestinal Surgery 2023年第10期15卷 2351-2356页

作者： jin-Han Yang jin-Ying Lan An-Yuan Lin wei-Biao Huang jin-Yuan Liao Department of Radiology Guiping People’s HospitalGuigang 537200Guangxi Zhuang Autonomous RegionChina Department of Radiology The First Affiliated Hospital of Guangxi Medical UniversityNanning 530021Guangxi Zhuang Autonomous RegionChina

BACKGROUND Few reports have described living foreign bodies in the human *** current manuscript demonstrates that computed tomography(CT)is an effective tool for accurate preoperative evaluation of living foreign bodies in *** threedimensional(3D)reconstruction technology could clearly display anatomical structures,lesions and adjacent organs,improving diagnostic accuracy and guiding the surgical decision-making *** SUMMARY Herein we describe a 68-year-old man diagnosed with digestive tract perforation and acute peritonitis caused by a foreign body of Monopterus *** patient pre-sented to the emergency department with complaints of dull abdominal pain,profuse sweating and a pale complexion during work.A Monopterus albus had entered the patient’s body through the anus two hours *** hospitalization,the 3D reconstruction technology revealed a perforation of the middle rectum complicated with acute peritonitis and showed a clear and complete Monopterus albus bone morphology in the abdominal and pelvic cavities,with the Monopterus albus biting the *** examination detected a large(diameter of about 1.5 cm)perforation in the *** could be seen that a Monopterus albus had completely entered the abdominal cavity and had tightly bitten the mesentery of the small *** the operation,the dead Monopterus albus was taken *** The current manuscript demonstrates that CT is an effective tool for accurate preoperative evaluation of living foreign bodies in clinic.

关键词： Digestive tract perforation Acute peritonitis Monopterus albus Three-dimensional computed tomography reconstruction Case report

*** Synthesis of （Aza）indolines via Dehydrogenative [3＋2] Annulatnon： Application to Total Synthesis of （±）-Hinckdentme At

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Chinese Journal of Chemistry 2018年第10期36卷 909-915页

作者： Zhong-wei Hou Hong Yan jin-Shuai Song Hai-Chao Xu State Key Laboratory of Physical Chemistry of Solid Surfaces Key Laboratory of Chemical Biology of Fujian Province iChEM and College of Chemistry and Chemical Engineering Xiamen University Xiamen Fujian 361005 China Fujian Institute of Research on Structure of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 China

An electrochemical synthesis of functionalized （aza）indolines through dehydrogenative [3＋2] annulation of arylamines with tethered alkenes has been developed. Previous reported syntheses through similar inter- and intramolecular annulation reactions required noble-metal catalysts and are mostly limited to terminal alkenes or 1,3-dienes. The electrosynthesis employs the easily available and inexpensive ferrocene as the molecular catalyst and is compatible with di-, tri- and even tetrasubstituted alkenes to construct indolines as well as the more challenging azaindolines. Employing the newly developed electrosynthesis as a key step, the total synthesis of marine alkaloid （＋）-hinckdentine A has been achieved in 12 steps （longest linear sequence） from commercially available materials.

关键词： electrochemistry indoline radical annulation hinckdentine A

Copper Promoted Au/ZnO-CuO Catalysts for Low Temperature Water-gas Shift Reaction

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Chemical Research in Chinese Universities 2006年第1期22卷 99-102页

作者： LIAN Hong-lei JIA Ming-jun PAN wei-cheng ZHANG Wen-xiang JIANG Da-zhen College of Chemistry Jilin University Changchun 130023 P. R. China School of Chemical Engineering Zhengzhou University Zhengzhou 450002 P. R. China

Various copper promoted Au/ZnO-CuO catalysts with different atomic ratios of Cu to Zn prepared by means of co-precipitation were tested for the low temperature water-gas shift（WGS） reaction. The catalytic activity of the catalyst depends largely on the ratio of Cu to Zn. The addition of an appropriate amount of copper can considerably improve both the catalytic activity and the stability of the catalyst in comparison with those of copper-free Au/ZnO cata- lysts. The enhanced reducibility of copper oxide in the Au/ZnO-CuO ternary-component catalysts, which was confirmed by H2-TPR, may be related to the high activity and stability of the catalyst for the low temperature WGS reaction.

关键词： Water-gas shift reaction ZnO CuO Gold

Detection of plasmid-mediated IMP-1 metallo-β-lactamase and quinolone resistance determinants in an ertapenem-resistant Enterobacter cloacae isolate

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2009年第5期10卷 348-354页

作者： Li-rong CHEN Hong-wei ZHOU Jia-chang CAI Rong ZHANG Gong-xiang CHEN Clinical Laboratory Center the Second Affiliated Hospital School of Medicine Zhejiang University Hangzhou 310009 China Cancer Institute Zhejiang University Hangzhou 310009 China

Objective： To investigate the mechanism of carbapenem resistance and the occurrence ofplasmid-mediated quinolone resistance determinants qnr and aac（6＇）-Ib-cr in a clinical isolate of Enterobacter cloacae. Methods： An ertapenem-resistant E. cloacae ZY106, which was isolated from liquor puris of a female gastric cancer patient in a Chinese hospital, was investigated. Antibiotic susceptibilities were determined by agar dilution method. Conjugation experiments, isoelectric focusing, polymerase chain reaction （PCR）, and DNA sequence analyses of plasmid-mediated carbapenemases and quinolone resistance determinants were preformed to confirm the genotype. Outer membrane proteins （OMPs） were examined by urea-sodium dodecyl sulfate- polyacrylamide gel electrophoresis （Urea-SDS-PAGE）. Results： Minimum inhibitory concentrations （MICs） of imipenem, mer- openem, and ertapenem for ZY 106 were 2, 4, and 16 pg/ml, respectively. Conjugation studies with Escherichia coli resulted in the transfer of significantly reduced carbapenem susceptibility. ZY106 produced IMP-1 metallo-β-lactamase and CTX-M-3 extended-spectrum β-1actamase, and E. coli transconjugant produced IMP-1. Plasrnid-mediated quinolone resistance determinant qnrS1 was detected in ZY106. Transfer of the qnrSl-encoding-plasmid into E. coli by conjugation resulted in intermediate resistance to ciprofloxacin in E. coli transconjugant. Urea-SDS-PAGE analysis of OMPs showed that ZYI06 lacked an OMP of approximately 38 kDa. Conclusion： It is the first IMP-l-producing Enterobacteriaceae in China and the first report of a clinical isolate that harbors both blalMP and qnrS genes as well. The blalMP-1, blaCTX-M-3, and qnrS1 are encoded at three different plasmids. IMP-1 combined with the loss of an OMP possibly resulted in ertapenem resistance and reduced imipenem and mero- penern susceptibility in E. cloacae.

关键词： Antibiotic resistance Carbapenem Enterobacteriaceae Outer membrane proteins (OMPs)