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Nano Research 2025年第1期18卷 508-519页

作者： Ke jiang Zhi Chen ji Yu Chen Zheng Shan Huang Ming Wang Chongqing Key Laboratory of Soft-Matter Material Manufacturing School of Chemistry and Chemical EngineeringSouthwest UniversityChongqing 400715China School of Mechanics Civil Engineering and ArchitecturesNorthwestern Polytechnical UniversityXi’an 710072China jieyang Branch of Chemistry and Chemical Engineering Guangdong Laboratory(Rongjiang Laboratory) Jieyang 515200China

Herein,the electromagnetic shielding performance of surface concave-convex(SC)and zig-zag micro-arrays was studied by using a simulation prediction and a three-dimensional(3D)printing custom ***,surface stripe concaveconvex(SSC)and surface cylindrical concave-convex(SCC)micro-arrays with or without zig-zag micro-arrays are designed,and their shielding performance is simulated in multi-bands(C-,X-band).The multiwalled carbon nanotubes/polydimethylsiloxane composites(MWCNT/PDMS)with different SC structures and different electrical conductivity are molded in acrylonitrile-butadiene-styrene copolymer(ABS)molds which are printed by a 3D *** results show that the electromagnetic interference shielding effectiveness(EMI SE)of the samples can be enhanced by constructing the SC micro-arrays with zig-zag micro-arrays,and improving with the increase of conductivity and *** addition,the shielding mechanism of the SC-MWCNT/PDMS composites is investigated and discussed by an electromagnetic simulation.

关键词： surface micro-arrays electrical properties electromagnetic interference(EMI)shielding three-dimensional(3D)printing

逆行自体血预充对围术期临床结果影响的荟萃分析

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中国体外循环杂志 2014年第1期12卷 27-30页

作者：孙鹏吉冰洋孙燕华朱贤刘晋萍龙村中国医学科学院北京协和医学院阜外心血管病医院体外循环科北京100037

目的对逆行自体血预充(RAP)对围术期临床结果的影响进行荟萃分析。方法对PubMed、Embase、Cochrane Library、Google Scholar、万方、维普以及中国知网数据库中关于在成人患者中应用RAP的随机对照试验(RCT)进行全面检索,观察的临床指标... 详细信息

目的对逆行自体血预充(RAP)对围术期临床结果的影响进行荟萃分析。方法对PubMed、Embase、Cochrane Library、Google Scholar、万方、维普以及中国知网数据库中关于在成人患者中应用RAP的随机对照试验(RCT)进行全面检索,观察的临床指标包括体外循环(CPB)中最低红细胞比容(Hct)、术中输血的病例数、围术期输血的病例数、总的红细胞用量、术后24 h胸液引流量、拔管时间、ICU留观时间和总住院时间。结果共10篇RCT入选。RAP组与对照组比较,CPB中最低Hct(P0.05)无统计学差异,但因异质性较大(I2>50%),其临床效果无法评估。RAP组术中输血的患者数(P0.05)和ICU留观时间(P>0.05)无统计学差异。结论 RAP可显著减少成人患者围术期输血,其对患者预后的影响,较传统预充方法无统计学差异。

关键词：逆行自体血预充预充量输血临床结果体外循环

Synthesis and Crystal Structure of 4-Salicylimine-3, 5-bis(2-hydroxyphenyl)-1, 2, 4-triazole ji Bao-Minga

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Chinese Journal of Structural Chemistry 2002年第3期21卷 252-255页

作者： ji Bao-Ming DU Chen-Xia ZHU Yu WANG yang Department of Chemistry Luoyang Teacher's College Luoyang 471022 Department of Chemistry Zhengzhou University Zhengzhou 450052 School of Pharmacy Fudan University 上海 200032

The title compound, 4-salicylimine-3, 5-bis(2-hydroxyphenyl)-1, 2, 4-triazole, was obtained by the condensation reaction of 4-amino-3, 5-bis(2-hydroxyphenyl)-1, 2, 4-triazole with salicylaldehyde in methanol. The crystal structure (C21H16N4O3, Mr = 372.38) belongs to monoclinic system, space group P21/n with a = 10.507(2), b = 16.878(3), c = 11.199(2) ? = 110.86(3), V = 1855.9(6) ?, Z = 4, Dc = 1.333 g/cm3, F(000) = 776, (MoK? = 0.092 mm-1, R = 0.0552 and wR = 0.1095 for 1920 reflections ( I > 2.0(I) ). The analytical results of crystal structure show that there are two different non-covalent interactions in the compound. One is hydrogen bond, and the other p-p stacking interaction. These two types of non-covalent interactions play an important role in the packing of crystal.

关键词： triazole hydrogen bond crystal structure stacking interaction

威斯康星液和康斯特液与施尔生液心脏保存效果的系统评价

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中国体外循环杂志 2015年第3期13卷 154-160页

作者：李勇男郭莎莎刘刚袁媛吉冰洋郑哲王巍北京协和医学院中国医学科学院国家心血管病中心阜外医院体外循环科北京100037 兰州大学第二医院心外科兰州730000 北京协和医学院中国医学科学院国家心血管病中心阜外医院心外科北京100037

目的心脏移植中,心脏保存液有效地减轻供体心脏冷缺血保存期间的不利影响。但对威斯康星(UW)液、康斯特(HTK)液与施尔生(Celsior)液并无统一共识,本文就三种心脏保存液保存效果进行系统评价。方法系统检索PubMed、Embase、the Cochrane ... 详细信息

目的心脏移植中,心脏保存液有效地减轻供体心脏冷缺血保存期间的不利影响。但对威斯康星(UW)液、康斯特(HTK)液与施尔生(Celsior)液并无统一共识,本文就三种心脏保存液保存效果进行系统评价。方法系统检索PubMed、Embase、the Cochrane Library、the Centre for Evidence in Transplantationthe和International Clinical Trials Registry Platform文献数据库。采用患者术后生存率与供体心脏功能衰竭作为主要指标,采用院内死亡率作为次要指标。结果相比于Celsior液,UW液保存供体心脏后,患者术后30 d与90 d生存率较均较高(HR=1.16,95%CI=1.11-1.22,P<0.00001;RD=0.03,95%CI=0.01-0.05,P=0.002)。并且UW液保存供体心脏较少发生术后缺血性坏死(RD=-0.07,95%CI=-0.08--0.05,P<0.00001)。UW液保存后相比于HTK液也具有较高的术后生存率。供体心脏经HTK液与Celsior液保存后,术后移植物功能障碍发生率与院内死亡率均无统计学差异。结论心脏移植中,UW液在供体心脏冷缺血保存期间,保存效果优于Celsior液与HTK液,Celsior液和HTK液的保存效果并无明显差异。

关键词：心脏移植器官保存心脏保存液系统评价

Effects of L-arginine during ischemia-reperfusion injury in rat orthotopic liver transplantation

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World Journal of Gastroenterology 1998年第3期4卷 87-87页

作者： DIAO Tong jin 1, YAO Xiao Ping 2, ji bing 1, yang jia Mei 2, WU Meng Chao 2 and ZHANG Shao Geng 3 1Department of General Surgery, Chinese PLA 401 Navy Hospital, Qingdao 266071, Shandong Province, China 2Eastern Hospital of Hepa

AIM To investigate the functional of L arginine in grafted liver and lung during ischemia reperfusion injury (I RI) in rat orthotopic liver transplantation (OLT). METHODS Using a syngeneic Wistar rat orthotopic liver transplantation (OLT) model 66 rats were randomly divided into three groups ( n =11): L arginine (LA), nitric oxide inhibitor (L NAME, LN) and Lactated Ringer's (LR) solution. After 6 hours of preservation, orthotopic implantation of the donor liver was performed. RESULTS Serum nitric oxide and cGMP levels in the grafted liver tissues lowered immediately upon reperfusion in rat orthotopic liver transplantation. L arginine was used to supplement the nitric oxide synthesizing pathway (NOSP), which prolonged of the survival of the recipient with a one week survival of 20% for LR and 80% for LA liver ( n =6, 28 8d±36 6d, P <0 01 vs LR), and improved the hepatic function. Histopathology indicates that L arginine can maintain the integrity of hepatocytes, improve the hepatic regeneration and protect the lung from injury during cold hepatic I RI . In contrast, the grafted liver function and survival was inferior in all cases with inhibited nitric oxide production. Furthermore, histopathology revealed the intrahepatic thrombosis, more severe destruction of the grafted liver and lung tissues, and more severe inflammatory response of the recipient after inhibition of nitric oxide. CONCLUSION L arginine in a storage solution to supplementing NOSP can protect the grafted liver and the lungs from injury during ischemia reperfusion in orthotopic liver transplantation (OLT). The nitric oxide synthesizing pathway (NOSP) in liver transplantation may be a critical determinant of successful organ transplantation, thus providing a useful pharmacological approach to enhancing liver preservation.

关键词： orthotopic arginine

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微创体外循环心脏手术的麻醉处理

中国分子心脏病学杂志 2014年第3期14卷 917-920页

作者：杨丽静王古岩杜英杰李立环孙鹏吉冰洋郑哲中国医学科学院北京协和医学院国家心血管病中心心血管疾病国家重点实验室阜外心血管病医院麻醉科北京市100037 中国医学科学院北京协和医学院国家心血管病中心心血管疾病国家重点实验室阜外心血管病医院体外循环科北京市100037 中国医学科学院北京协和医学院国家心血管病中心心血管疾病国家重点实验室阜外心血管病医院心外科北京市100037

目的回顾性分析、总结微创体外循环心脏手术的麻醉管理要点,评估其安全性和有效性。方法我院从2012年7月至2012年8月连续进行该手术10例,包括8例冠状动脉旁路移植术,2例胸骨上段小切口行主动脉瓣置换术。手术在静吸复合全身麻醉及微创... 详细信息

目的回顾性分析、总结微创体外循环心脏手术的麻醉管理要点,评估其安全性和有效性。方法我院从2012年7月至2012年8月连续进行该手术10例,包括8例冠状动脉旁路移植术,2例胸骨上段小切口行主动脉瓣置换术。手术在静吸复合全身麻醉及微创体外循环下进行,术中常规行食道超声检查,并应用洗血球机行自体血液回收。转机前半量肝素化(200-240IU/kg),维持活化凝血时间(activated clotting time,ACT)在300秒以上。转机期间谨防进气,适当补液,维持合适的血容量和体外循环流量。结果全组患者均顺利出院,无术后并发症,无死亡。体外循环时间(93.7±19.9)min,阻断时间(54.8±18.5)min。术后机械通气时间(14±5.7)h,重症监护病房(intensive care unit,ICU)停留时间(39.3±19.4)h,24小时胸管引流量(424±156.2)mL。围术期仅1例输入血制品,为浓缩红细胞2单位。结论掌握微创体外循环的方法和原理,加强容量管理和体循环阻力的调控,谨防进气,是麻醉处理的关键。

关键词：微创体外循环心脏手术麻醉处理

玉米大豆间作对喀斯特区土壤理化性质及微生物碳代谢特征的影响

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作物学报 2025年第1期51卷 273-284页

作者：钱玉平宿兵兵高吉星阮粉花李亚伟茅林春滇西应用技术大学普洱茶学院云南普洱665000 兰州交通大学环境与市政工程学院甘肃兰州730070 甘肃省农业科学院作物研究所甘肃兰州730070 浙江大学生物系统工程与食品科学学院浙江杭州310000

为探明喀斯特区玉米大豆带状复合种植对土壤理化性质及微生物群落结构多样性的影响,本研究设置玉米大豆间作(MSI)、玉米单作(MM)和大豆单作(SM) 3种模式,采用Biolog-ECO微孔培养法,旨在揭示玉米大豆种植模式对土壤微生物碳源代谢活性、... 详细信息

为探明喀斯特区玉米大豆带状复合种植对土壤理化性质及微生物群落结构多样性的影响,本研究设置玉米大豆间作(MSI)、玉米单作(MM)和大豆单作(SM) 3种模式,采用Biolog-ECO微孔培养法,旨在揭示玉米大豆种植模式对土壤微生物碳源代谢活性、多样性以及土壤性质的影响及其机制。结果表明,与MM及SM相比, MSI土壤微生物群落丰富度指数(McIntoshindex)分别显著提高了11.90%和58.40%,平均颜色变化率(averagewellcolordevelopment, AWCD)分别显著增加了24.50%和80.10%,羧酸类、氨基酸类和酚酸类碳源的平均相对吸光度分别显著提高了34.50%、63.70%和61.80%;碳源代谢指纹图谱表明,MSI模式中土壤微生物通过提高衣康酸的代谢活性进而增加了对羧酸类碳源的利用,通过提高L-苯丙氨酸、L-苏氨酸和甘氨酰-L-谷氨酸的代谢活性从而增加了氨基酸类碳源利用,通过提高吐温40、吐温80和肝糖的代谢活性从而增加了对多聚类碳源的利用;同时, MSI处理土壤SOC分别较MM和SM显著提高8.50%和72.84%, NH_4~+-N和TN含量分别较SM处理显著增加46.70%和33.30%;主成分分析表明,提取的2个主成分解释了碳源利用总变异的79.69%,种植模式对碳源代谢的综合利用能力表现为MSI>MM>SM,其中MSI土壤微生物群落对羧酸类、氨基酸类和多聚类代谢利用能力最强;冗余分析则表明,显著影响碳源代谢利用的2个环境因子分别是TN (53.50%)和SOC (30.90%),其中TN促进了羧酸类和氨基酸类碳源的代谢利用, SOC加强了胺类和酚酸类碳源的利用。综上可见,玉米大豆间作模式土壤微生物碳代谢的偏好性主要由微生物群落结构多样性引起,同时又受土壤全氮和有机质含量的调控,表明微生物群落结构与土壤理化因子间的互作可能是大豆玉米复合种植增产增效的一个关键因素。

关键词：玉米大豆土壤微生物碳源代谢活性土壤理化性质 Biolog-ECO

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Preparations and characterizations of two MOFs constructed with hydroxylphenyl imidazole dicarboxylate

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Chinese Chemical Letters 2015年第9期26卷 1059-1064页

作者： ji-Feng Wang bing-bing Shi Gang Li College of Chemistry and Molecular Engineering Zhengzhou University

Using the hydrothermal reactions of Mn（Ⅱ） and Ba（Ⅱ） salts with 2-（3-hydroxylphenyl）-1H-imidazole-4,5-dicarboxylic acid（m-OHPhH3IDC）,two novel metal-organic frameworks,namely,{[Mn（mOHPhHIDC）（H2O）]2H2On（1） and {[Ba（m-OHPhH2IDC）2（H2O）3]-2H2O）n,（2） have been synthesized and structurally characterized by single-crystal X-ray crystallography,elemental analyses,and IR *** 1 features a novel non-interpenetrated three-dimensional（3,4）-connected network with one-dimensional open *** 2 exhibits a two-dimensional layered structure with rhombic *** role of the central metals in the formation of final architectures has been ***,luminescent and thermal properties of the two complexes have been studied.

关键词： Imidazole dicarboxylate Metal-organic frameworks Manganese Barium Property

Parameter estimation of the WMTD model

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Applied Mathematics(A Journal of Chinese Universities) 2009年第4期24卷 379-388页

作者： LUO ji QIU Hong-bing School of Mathematics and Statistics Zhejiang University of Finance and Economics Hangzhou 310018 China School of Finance and Statistics East China Normal University Shanghai 200241 China Department of Applied Mathematics Guangdong University of Technology Guangzhou 510006 China

The MTD （mixture transition distribution） model based on Weibull distribution （WMTD model） is proposed in this paper, which is aimed at its parameter estimation. An EM algorithm for estimation is given and shown to work well by some simulations. And bootstrap method is used to obtain confidence regions for the parameters. Finally, the results of a real example--predicting stock prices--show that the WMTD model proposed is able to capture the features of the data from thick-tailed distribution better than GMTD （mixture transition distribution） model.

关键词： Markov chain EM algorithm Weibull distribution bootstrap confidence region

Early warning model for slope debris flow initiation

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Journal of Mountain Science 2018年第6期15卷 1342-1353页

作者： LI Ming-li jiANG Yuan-jun yang Tao HUANG Qiang-bing QIAO jian-ping yang Zong-ji Key Laboratory of Mountain Hazards and Earth Surface Process of Chinese Academy of Sciences Institute of Mountain Hazards and EnvironmentChinese Academy of SciencesChengdu 610041China University of Chinese Academy of Sciences Beijing 100049China Chengdu Center of Hydrogeology and Engineering Geology of Sichuan Bureau of Geology&Mineral Resources Chengdu 610000China Department of Geological Engineering Chang'an UniversityXi'an 710054China

Early warning model of debris flow is important for providing local residents with reliable and accurate warning information to escape from debris flow hazards. This research studied the debris flow initiation in the Yindongzi gully in Dujiangyan City, Sichuan province, China with scaled-down model experiments. We set rainfall intensity and slope angle as dominating parameters and carried out 20 scaled-down model tests under artificial rainfall conditions. The experiments set four slope angles(32°, 34°, 37°, 42°) and five rainfall intensities(60 mm/h, 90 mm/h, 120 mm/h, 150 mm/h, and 180 mm/h) treatments. The characteristic variables in the experiments, such as, rainfall duration, pore water pressure, moisture content, surface inclination, and volume were monitored. The experimental results revealed the failure mode of loose slope material and the process of slope debris flow initiation, as well as the relationship between the surface deformation and the physical parameters of experimental model. A traditional rainfall intensity-duration early warning model(I-D model) was firstly established by using a mathematical regression analysis, and it was then improved into ISD model and ISM model(Here, I is rainfall Intensity, S is Slope angle, D is rainfall Duration, and M is Moisture content). The warning model can provide reliable early warning of slope debris flow initiation.

关键词： Slope debris flow Artificial rainfallmodel Early warning model Model experiment