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Chinese Journal of Chemistry 2023年第7期41卷 805-813页

作者： Yanping Song kuan Yin Yongjie chen Bei Zhao Yong Zhang Xuehua Zhu dan Yuan Yingming Yao Key Laboratory of Organic Synthesis of Jiangsu Province State and Local Joint Engineering Laboratory for Novel Functional Polymeric MaterialsCollege of ChemistryChemical Engineering&Materials ScienceDushu Lake CampusSoochow UniversitySuzhouJiangsu215123 China Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis SuzhouJiangsu215123 China Suzhou Industrial Park Institute of Services and Outsourcing SuzhouJiangsu215123 China School of Chemistry and Life Science Suzhou University of Science and TechnologySuzhouJiangsu215009 China

Comprehensive Summary Four heterometallic rare earth(Ⅲ)-cobalt(Ⅱ)complexes(rare earth=Y(1),Sm(2),Nd(3),La(4))stabilized by an o-phenylenediamine-bridged tris(phenolato)ligand(L)have been synthesized and *** these tetranuclear complexes,one polydentate L coordinates to one rare earth(Ⅲ)ion,and one cobalt(Ⅱ)ion,respectively,while two rare earth ions are bridged by four acetate *** complexes were applied in the copolymerization of cyclohexene oxide and CO_(2),which showed good activity(TON up to 440)and high poly(cyclohexene carbonate)selectivity(>99%).Kinetic studies determined the equation as rate=k[CHO]1[CO_(2)]0[initiator]1,which proves a first-order dependence on initiator concentrations and implies a synergistic mechanism with rare earth and cobalt ions cooperating in epoxide ring-opening and chain propagation.

关键词： Carbon dioxide Rare earth metal Heterometallic complexes Poly(cyclohexene carbonate) Crystal structure

Microstructures and mechanical properties of Cu/Al compound materials during thermal cycle

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Rare Metals 2022年第11期41卷 3911-3918页

作者： Bing Wang Ping Liu Xin-kuan Liu Zi-Yan Wang Yan-Yan Wang Xiao-Hong chen Xiao-Zhi Liu School of Materials Science and Engineering University of Shanghai for Science and TechnologyShanghai200093China Automobiles Science and Technology(Shanghai)Co. LtdShanghai200433China

Cu/Al compound materials,named as copperclad aluminum bus bars,are widely used in heat dissipation of modern *** thermal cycle tests were conducted at 200,250 and 300℃for different cycle times,*** of thermal cycle temperatures and thermal cycle times on micro structures and mechanical properties of the interface were *** results show that the width of bonding layer and bond strength are significantly affected by thermal cycle temperatures and ***,the variety or the quantity of intermediate compounds is scarcely ***_(2)Cu,Cu_(9) Al_(4)and CuAl were identified on the *** the increase in cycle times,grains of the material grew ***,grains of the interface grew up more apparently than those of Cu and *** knowledge may be applied in the establishment of service condition and quality evaluation of material.

关键词： Copper-clad aluminum bus bars Thermal cycle Interface Bonding Microstructure Intermetallic

Global sensitivity analysis of the AquaCrop model for winter wheat under different water treatments based on the extended Fourier amplitude sensitivity test

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Journal of Integrative Agriculture 2017年第11期16卷 2444-2458页

作者： XING Hui-min XU Xin-gang LI Zhen-hai chen Yi-jin FENG Hai-kuan YANG Gui-jun chen Zhao-xia College of Geoscience and Surveying Engineering China University of Mining & Technology (Beijing) Beijing 100083 P.R. China National Engineering Research Center for Information Technology in Agriculture Beijing 100097 P.R. China Key Laboratory of Agri-informatics Ministry of Agriculture Beijing 100097 P.R. China Beijing Engineering Research Center of Agricultural Internet of Things Beijing 100097 P.R. China

Sensitivity analysis （SA） is an effective tool for studying crop models; it is an important link in model localization and plays an important role in crop model calibration and application. The objectives were to （i） determine influential and non-influential parameters with respect to above ground biomass （AGB）, canopy cover （CC）, and grain yield of winter wheat in the Beijing area based on the AquaCrop model under different water treatments （rainfall, normal irrigation, and over-irrigation）; and （ii） generate an AquaCrop model that can be used in the Beijing area by setting non-influential parameters to fixed values and adjusting influential parameters according to the SA results. In this study, field experiments were conducted during the 2012-2013,2013-2014, and 2014-2015 winter wheat growing seasons at the National Precision Agriculture Demonstration Research Base in Beijing, China. The extended Fourier amplitude sensitivity test （EFAST） method was used to perform SA of the AquaCrop model using 42 crop parameters, in order to verify the SA results, data from the 2013-2014 growing season were used to calibrate the AquaCrop model, and data from 2012-2013 and 2014-2015 growing seasons were val- idated. For AGB and yield of winter wheat, the total order sensitivity analysis had more sensitive parameters than the first order sensitivity analysis. For the AGB time-series, parameter sensitivity was changed under different water treatments; in comparison with the non-stressful conditions （normal irrigation and over-irrigation）, there were more sensitive parameters under water stress （rainfall）, while root development parameters were more sensitive. For CC with time-series and yield, there were more sensitive parameters under water stress than under no water stress. Two parameters sets were selected to calibrate the AquaCrop model, one group of parameters were under water stress, and the others were under no water stress, there were two more sensitive parameters （growing

关键词： winter wheat AquaCrop model sensitivity analysis EFAST method sensitive parameter

Esophagogastroduodenoscopy with conscious sedation does not interfere with catheter-based 24-h pH monitoring

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World Journal of Gastroenterology 2013年第11期19卷 1805-1810页

作者： Yung-kuan Tsou Jau-Min Lien Chin-Kuo chen cheng-Hui Lin Hsing-Yu chen Mu-Shien Lee Department of Gastroenterology and Hepatology Chang Gung Memorial HospitalChang Gung University College of MedicineTaoyuan 333Taiwan Department of Otolaryngology Chang Gung Memorial HospitalChang Gung University College of MedicineTaoyuan 333Taiwan Center for Traditional Chinese Medicine Chang Gung Memorial HospitalChang Gung University College of MedicineTaoyuan 333Taiwan

AIM:To investigate the impact of esophagogastroduodenoscopy with conscious sedation on the subsequent 24-h catheter-based pH ***:Fifty patients with extra-esophageal symptoms of gastroesophageal reflux disease undergoing ambulatory dual-probe 24-h pH monitoring were enrolled from March 2010 to August *** of the data were collected prospectively and analyzed ***-six patients(72%,group A) underwent pH monitoring shortly after esophagogastroduodenoscopy(EGD) with conscious sedation,and 14 patients(28%,group B) underwent pH monitoring without conscious *** 24-h pH data from two time periods were analyzed:the first 4 h(Period Ⅰ) and the remaining time of the study(Period Ⅱ).RESULTS:The mean age of the patients was 49.6 ± 12.5 years;20 patients(40%) were *** baseline data,including age,sex,body mass index,reflux esophagitis,the Reflux Symptom Index,and the Reflux Findings Score,were comparable between the two *** percentage of total time with a pH dation does not interfere with the results of subsequent 24-h pH monitoring in patients with extra-esophageal

关键词： Esophagogastroduodenoscopy Conscious sedation pH monitoring Gastroesophageal reflux disease Extraesophageal symptoms

IL-29 promoted obesity-induced inflammation and insulin resistance

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Cellular & Molecular Immunology 2020年第4期17卷 369-379页

作者： Tian-Yu Lin Chiao-Juno Chiu chen-Hsiang kuan Fang-Hsu chen Yin-chen Shen Chih-Hsing Wu Yu-Hsiang Hsu Institute of Clinical Medicine College of MedicineNational Cheng Kung UniversityTainanTaiwanChina Graduate Institute of Clinical Medicine College of MedicineNational Taiwan UniversityTaipeiTaiwanChina Division of Plastic Surgery Department of SurgeryNational Taiwan University HospitalTaipeiTaiwanChina Department of Family Medicine National Cheng Kung University HospitalCollege of MedicineNational Cheng Kung UniversityTainanTaiwanChina Clinical Medicine Research Center National Cheng Kung University HospitalCollege of MedicineNational Cheng Kung UniversityTainanTaiwanChina

Adipocyte-macrophage crosstalk plays a critical role to regulate adipose tissue microenvironment and cause chronic inflammation in the pathogenesis of ***-29(IL-29),a member of type 3 interferon family,plays a role in host defenses against microbes,however,little is known about its role in metabolic *** explored the function of IL-29 in the pathogenesis of obesity-induced inflammation and insulin *** found that serum IL-29 level was significantly higher in obese ***-29 upregulated IL-1β,IL-8,and monocyte chemoattractant protein-1(MCP-1)expression and decreased glucose uptake and insulin sensitivity in human Simpson-Golabi-Behmel syndrome(SGBS)adipocytes through reducing glucose transporter 4(GLUT4)and AKT *** addition,IL-29 promoted monocyte/macrophage *** of IL-29 could reduce inflammatory cytokine production in macrophage-adipocyte coculture system,which mimic an obese *** vivo,IL-29 reduced insulin sensitivity and increased the number of peritoneal macrophages in high-fat diet(HFD)-induced obese ***-29 increased M1/M2 macrophage ratio and enhanced MCP-1 expression in adipose tissues of HFD ***,we have identified a critical role of IL-29 in obesity-induced inflammation and insulin resistance,and we conclude that IL-29 may be a novel candidate target for treating obesity and insulin resistance in patients with metabolic disorders.

关键词： cytokine insulin resistance inflammation obesity

Risk of critical limb ischemia in long-term uterine cancer survivors:A population-based study

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World Journal of Clinical Cases 2022年第36期10卷 13293-13303页

作者： Min-Chi chen Jung-Jung Chang Miao-Fen chen Ting-Yao Wang Cih-En Huang kuan-Der Lee Chao-Yu chen Department of Public Health Chang Gung UniversityTaoyuan 333Taiwan Department of Obstetrics and Gynecology Chang Gung Memorial HospitalChiayi 612Taiwan Division of Cardiovascular Disease Department of Internal MedicineChang Gung Memorial HospitalChiayi 612Taiwan Department of Radiation Oncology Change Gung Memorial HospitalLinkouTaoyuan 333Taiwan Division of Hematology and Oncology Department of Internal MedicineChang Gung Memorial HospitalChiayi 612Taiwan Graduate Institute of Clinical Medical Sciences College of MedicineChang Gung UniversityTaoyuan 333Taiwan Department of Medicine Taipei Medical University HospitalTaipei 100Taiwan Department of Medical Research Taichung Veterans General HospitalTaichung 407Taiwan Department of Post-Baccalaureate Medicine College of MedicineNational Chung Hsing UniversityTaichung 402Taiwan Department of Early Childhood Care and Education Shu-Zen Junior College of Medicine and ManagementKaohsiung 821Taiwan

BACKGROUND The risk of critical limb ischemia(CLI)which causes ischemic pain or ischemic loss in the arteries of the lower extremities in long-term uterine cancer(UC)survivors remains unclear,especially in Asian patients,who are younger at the diagnosis of UC than their Western *** To conduct a nationwide population-based study to assess the risk of CLI in UC long-term *** UC survivors,defined as those who survived for longer than 5 years after the diagnosis,were identified and matched at a 1:4 ratio with normal *** Cox models were used to assess the risk of *** From 2000 to 2005,1889 UC survivors who received surgery alone or surgery combined with radiotherapy(RT)were classified into younger(onset age65 years,aHR=2.48,P=0.011),had hypertension(aHR=2.18,P=0.008)or received HRT(aHR=3.52,P=0.020)were at a higher risk of *** In this nationwide study,we found that the risk factors associated with CLI were similar in both cohorts except for adjuvant RT that was negligible in the younger group,but positive in the older *** the survivors,hypertension,advanced age,and HRT were more hazardous than *** prevention should include CLI as a late complication in UC survivorship programs.

关键词： Uterine cancer Critical limb ischemia Radiotherapy Survivorship

Formation of Large Bipolarons

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Chinese Physics Letters 1997年第8期14卷 601-604页

作者： chen Qing-hu REN Yu-hang JIAO Zheng-kuan ZHANG Qi-rui Department of Physics Zhejiang UniversityHangzhou 310027

A variational approach is presented to calculate the ground-state energy of large bipolarons in two and three *** values of the critical coupling constantαc above which the bipolaron is stable and the critical ratio of dielectric constantsηc below which the bipolaron is stable are approximately *** is found that the stability region of bipolarons in the(l/α,η)-plane becomes larger with decreasing dimensionality.

关键词： critical dimensionality constants

Failure mechanism and influencing factors of cement sheath integrity under alternating pressure

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Petroleum Science 2023年第4期20卷 2413-2427页

作者： kuan-Hai Deng Nian-Tao Zhou Yuan-Hua Lin Yan-Xian Wu Jie chen Chang Shu Peng-Fei Xie State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation(Southwest Petroleum University) ChengduSichuan610500China Engineering Technology Research Institute PetroChina Xinjiang Oilfield CompanyKaramayXinjiang834000China CNPC Xibu Drilling Engineering Company Limited UrumqiXinjiang830000China Engineering Technology Research Institute PetroChina Southwest Oil&Gas Field CompanyChengduSichuan610066China

The failure of cement sheath integrity can be easily caused by alternating pressure during large-scale multistage hydraulic fracturing in shale-gas *** elastic-plastic mechanical model of casing-cement sheath-formation(CSF)system under alternating pressure is established based on the Mohr-Coulomb criterion and thick-walled cylinder theory,and it has been solved by MATLAB programming combining global optimization algorithm with Global *** failure mechanism of cement sheath integrity is investigated,by which it can be seen that the formation of interface debonding is mainly related to the plastic strain accumulation,and there is a risk of interface debonding under alternating pressure,once the cement sheath enters plasticity whether in shallow or deep well *** matching relationship between the mechanical parameters(elastic modulus and Poisson's ratio)of cement sheath and its integrity failure under alternating pressure in whole well sections is studied,by which it has been found there is a“critical range”in the Poisson's ratio of cement *** the Poisson's ratio is below the“critical range”,there is a positive correlation between the yield internal pressure of cement sheath(SYP)and its elastic ***,when the Poisson's ratio is above the“critical range”,there is a negative *** elastic modulus of cement sheath is closely related to its Poisson's ratio,and restricts each *** and reasonable matching between mechanical parameters of cement sheath and CSF system under different working conditions can not only reduce the cost,but also protect the cement sheath integrity.

关键词： Casing-cement sheath-formation system Mechanical model Matching relationship Cement sheath integrity Critical range Mechanical parameters

Toughening Poly(lactic acid) with Imidazolium-based Elastomeric Ionomers

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Chinese Journal of Polymer Science 2018年第12期36卷 1342-1352页

作者： Lu chen kuan Hu Si-Ting Sun Hai Jiang Dong Huang Kun-Yu Zhang Li Pan Yue-Sheng Li Tianjin Key Laboratory of Composite and Functional Materials School of Materials Science and Engineering Tianjin University Tianjin 300350 China School of Chemical Engineering and Technology Tianjin University Tianjin 300350 China Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 300072 China

Imidazolium-based elastomeric ionomers （i-BIIR） were facilely synthesized by ionically modified brominated poly（isobutylene-co-isoprene）（BIIR） with different alkyl chain imidazole and thoroughly explored as novel toughening agents for poly（lactic acid）（PLA）. The miscibility, thermal behavior, phase morphology and mechanical property of ionomers and blends were investigated through dynamic mechanical analyses （DMA）, differential scanning calorimetry （DSC）, scanning electron microscopy （SEM）, tensile and impact testing. DMA and SEM results showed that better compatibility between the PLA and i-BIIR was achieved compared to the PLA/unmodified BIIR elastomer. A remarkable improvement in ductility with an optimum elongation at break up to 235% was achieved for the PLA/i-BIIR blends with 1-dodecylimidazole alkyl chain （i-BIIR-12）, more than 10 times higher than that of pure PLA. The impact strengths of PLA were enhanced from 1.9 kJ/m2 to 4.1 k J/m2 for the PLA/10 wt% i-BIIR-12 blend. Toughening mechanism had been established by systematical analysis of the compatibility, intermolecular interaction and phase structures of the blends. Interracial cavitations initiated massive shear yielding of the PLA matrix owing to a suitable interfacial adhesion which played a key role in the enormous toughening effect in these blends. We believed that introducing imidazolium group into the BIIR elastomer was vital for the formation of a suitable interfacial adhesion.

关键词： Imidazolium-based ionomer Poly(lactic acid) Brominated poly(isobutylene-co-isoprene) Toughening Blend

Is anoplasty superior to scar revision surgery for posthemorrhoidectomy anal stenosis?Six years of experience

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World Journal of Clinical Cases 2022年第22期10卷 7698-7707页

作者： Yu-Tse Weng kuan-Jung Chu kuan-Hsun Lin Chun-Kai Chang Jung-cheng Kang Chao-Yang chen Je-Ming Hu Ta-Wei Pu Division of Plastic and Reconstructive Surgery Department of SurgeryTri-Service General HospitalNational Defense Medical CenterTaipei 114Taiwan National Defense Medical Center Taipei 114Taiwan Division of Thoracic Surgery Department of SurgeryTri-Service General HospitalNational Defense Medical CenterTaipei 114Taiwan Division of Plastic and Reconstructive Surgery Department of SurgeryZuoying BranchKaohsiung Armed Forces General HospitalKaohsiung 813Taiwan Division of Colon and Rectal Surgery Department of SurgeryTaiwan Adventist HospitalTaipei 105Taiwan Division of Colon and Rectal Surgery Department of SurgeryTri-Service General HospitalNational Defense Medical CenterTaipei 114Taiwan Division of Colon and Rectal Surgery Department of SurgerySongshan branchTri-Service General HospitalNational Defense Medical CenterTaipei 105Taiwan

BACKGROUND Anal stenosis is a rare but frustrating condition that usually occurs as a complication of *** severity of anal stenosis can be classified into three categories:mild,moderate,and *** are two main surgical treatments for this condition:scar revision surgery and anoplasty;however,no studies have compared these two approaches,and it remains unclear which is preferrable for stenoses of different *** To compare the outcomes of scar revision surgery and double diamond-shaped flap *** Patients with mild,moderate,or severe anal stenosis following hemorrhoidectomy procedures who were treated with either scar revision surgery or double diamond-shaped flap anoplasty at our institution between January 2010 and December 2015 were investigated and *** severity of stenosis was determined via anal examination performed digitally or using a Hill-Ferguson *** explored patient characteristics included age,sex,preoperative severity of anal stenosis,preoperative symptoms,and preoperative adjuvant therapy;moreover,their postoperative quality of life was measured using a 10-point *** underwent proctologic follow-up examinations one,two,and four weeks after *** We analyzed 60 consecutive patients,including 36 men(60%)and 24 women(40%).The mean operative time for scar revision surgery was significantly shorter than that for double diamondshaped flap anoplasty(10.14±2.31[range:7-15]min vs 21.62±4.68[range:15-31]min;P<0.001).The average of length of hospital stay was also significantly shorter after scar revision surgery than after anoplasty(2.1±0.3 vs 2.9±0.4 d;P<0.001).Postoperative satisfaction was categorized into four groups:45 patients(75%)reported excellent satisfaction(scores of 8-10),13(21.7%)reported good satisfaction(scores of 6-7),two(3.3%)had no change in satisfaction(scores of 3-5),and none(0%)had scores indicating poor satisfaction(1-2).As such,most patients were satisfied wi

关键词： Anal canal Anoplasty Scar revision Stenosis Surgery-induced tissue adhesions Surgical flaps