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    题名 作者 年代 出处 被引量
1Treatability of volatile chlorinated hydrocarbon-contaminated soils of different textures along a vertical profile by mechanical soil aeration:A laboratory test显示文摘Mechanical soil aeration is a simple, effective, and low-cost soil remediation technology that is suitable for sites contaminated with volatile chlorinated hydrocarbons(VCHs). Conventionally, this technique is used to treat the mixed soil of a site without considering the diversity and treatability of different soils within the site. A laboratory test was conducted to evaluate the effectiveness of mechanical soil aeration for remediating soils of different textures(silty,clayey, and sandy soils) along a vertical profile at an abandoned chloro-alkali chemical site in China. The collected soils were artificially contaminated with chloroform(TCM) and trichloroethylene(TCE). Mechanical soil aeration was effective for remediating VCHs(removal efficiency > 98%). The volatilization process was described by an exponential kinetic function.In the early stage of treatment(0–7 hr), rapid contaminant volatilization followed a pseudofirst order kinetic model. VCH concentrations decreased to low levels and showed a tailing phenomenon with very slow contaminant release after 8 hr. Compared with silty and sandy soils, clayey soil has high organic-matter content, a large specific surface area, a high clay fraction, and a complex pore structure. These characteristics substantially influenced the removal process, making it less efficient, more time consuming, and consequently more expensive. Our findings provide a potential basis for optimizing soil remediation strategy in a cost-effective manner.Yan Ma Yi Shi Deyi Hou Xi Zhang Jiaqi Chen Zhifen Wang Zhu Xu Fasheng Li Xiaoming Du 2017Journal of Environmental Sciences2017,29,4:3
2Calculation and Regulation of Residual Stress Distributionfor Superhybrid Composites显示文摘The distribution of residual stresses of ARALL with different prestresses i5 calculated by finite element theory. A new method for regulating the residual stress, that is, introducing interim layer between aramid and Al layers. is given out. Applying prestress to the laminate has strong effects on the distribution of normal stress along the fiber direction. The interim layer in fiber direction presents a state with gradient distribution.Zhong, Weihong Cui, Deyu Gu, Zhifen Chen, Changqi Li, Hongyun 1999Journal of Materials Science & Technology1999,15,2:3
3Evaluation of triage strategies for high-risk human papillomavirus-positive women in cervical cancer screening:A multicenter randomized controlled trial in different resource settings in China显示文摘Objective:We aimed to evaluate the effectiveness of different triage strategies for high-risk human papillomavirus(hrHPV)-positive women in primary healthcare settings in China.Methods:This study was undertaken in 11 rural and 9 urban sites.Women aged 35-64 years old were enrolled.HrHPV-positive women were randomly allocated to liquid-based cytology(LBC),visual inspection with acetic acid and Lugol’s iodine(VIA/VILI)(rural only)triage,or directly referred to colposcopy(direct COLP).At 24 months,hrHPV testing,LBC and VIA/VILI were conducted for combined screening.Results:In rural sites,1,949 hrHPV-positive women were analyzed.A total of 852,218 and 480 women were randomly assigned to direct COLP,LBC and VIA/VILI.At baseline,colposcopy referral rates of LBC or VIA/VILI triage could be reduced by 70%-80%.LBC(n=3 and n=7)or VIA/VILI(n=8 and n=26)could significantly decrease the number of colposcopies needed to detect one cervical intraepithelial neoplasia(CIN)2 or worse and CIN3+compared with direct COLP(n=14 and n=23).For the 24-month cumulative detection rate of CIN2+,VIA/VILI triage was 0.50-fold compared with LBC triage and 0.46-fold with the direct COLP.When stratified by age,baseline LBC triage+performed best(P<0.001),peaking among women aged 35-44 years(Ptrend=0.002).In urban sites,1,728 women were hrHPV genotyping test positive.A total of 408,571 and 568women were randomly assigned to direct COLP for HPV16/18+,direct COLP for other hrHPV subtypes+,and LBC triage for other hrHPV subtypes+.LBC(n=12 and n=31)significantly decreased the number of colposcopies needed to detect one CIN2+and CIN3+compared with direct COLP(n=14 and n=44).HPV16/18+increased the 24-month cumulative detection rate of CIN2+(17.89%,P<0.001).Conclusions:LBC triage for hrHPV-positive women in rural settings and direct COLP for HPV16/18+women and LBC triage for other hrHPV subtype+women in urban settings might be feasible strategies.Le Dang Linghua Kong Yuqian Zhao Yi Dai Li Ma Lihui Wei Shulan Zhang Jihong Liu Mingrong Xi Long Chen Xianzhi Duan Qing Xiao Guzhalinuer Abulizi Guonan Zhang Ying Hong Qi Zhou Xing Xie Li Li Mayinuer Niyazi Zhifen Zhang Jiyu Tuo Yiling Ding Youlin Qiao Jinghe Lang 2022Chinese Journal of Cancer Research2022,34,5:2
4TiO 2 nanoparticles assembled on graphene oxide nanosheets with high photocatalytic activity for removal of pollutants显示文摘Guodong Jiang Zhifen Lin Chao Chen Lihua Zhu Qing Chang Nan Wang Wei Wei Heqing Tang 2011Carbon2011,,8:2
5Sufficient conditionsfor the existence of at least n or exactly n limit cycles forthe Lienard differential systems 显示文摘Chen Xiudong Uiber J Zhang Zhifen 2007Journal of DifferentialEquations2007,242,1:1
6Ecological Foot- print Accounting for Energy and Resource in China 显示文摘Bin Chen Guoqian Chen Zhifen Yang 2007Ener- gy Policy2007,44,8:1
7Audio sensing and modeling of arc dynamic characteristic during pulsed Al alloy GTAW process显示文摘Na Lv Yanling Xu Zhifen Zhang Jifeng Wang Bo Chen Shanben Chen 2013Sensor Review2013,,2:1
8Chemical Compositions and Antibacterial Activities of Essential Oils Extracted From Alpinia guilinensis Against Selected Foodborne Pathogens显示文摘Zhifen Chen Bi He Jian Zhou Daohang He Jingdan Deng Ronghua Zeng 2015Industrial Crops & Products2015,,:1
9TiO2 nanoparticles assembled on graphene oxide nanosheets with high photoeatalytic activity for removal of pollutants 显示文摘JIANG Guodong LIN Zhifen CHEN Chao 2011Carbon2011,49,8:1
10The temporal hierarchy of shelters: a hierarchical location model for earthquake-shelter planning显示文摘Zhifen Chen Xiang Chen Qiang Li Jin Chen 2013International Journal of Geographical Information Science2013,,8:1
11Love temperature synthesis of mg4 Nb2 O9 nanopowders by high energy ball-milling method 显示文摘Zhifen Liu Peng Chen Xiaoming 2010Journal of Alloys and Compounds2010,493,12:1
12Early results of a modified splenic hilar lymphadenectomy in laparoscopy-assisted total gastrectomy for gastric cancer with stage cT1-2: a case–control study显示文摘Guoxian Guan Weizhong Jiang Zhifen Chen Xing Liu Huishan Lu Xiangfu Zhang 2013Surgical Endoscopy2013,,6:1
13The temporal hierarchy of shelters: a hierarchical location model for earthquake-shelter planning 显示文摘Chen Zhifen Chen Xiang Li Qiang 2013International Journal of Geographical Information Science2013,27,8:1
14Potential mechanisms of non-suicidal self-injury(NSSI)in major depressive disorder:a systematic review显示文摘Background Non-suicidal self-injury(NSSI)is a frequent and prominent phenomenon in major depressive disorder(MDD).Even though its prevalence and risk factors are relatively well understood,the potential mechanisms of NSSI in MDD remain elusive.Aims To review present evidence related to the potential mechanisms of NSSI in MDD.Methods According to Preferred Reporting Items for Systematic Reviews and Meta-Analyses 2020 guidelines,articles for this systematic review were searched on Medline(through PubMed),Embase(through Elsevier),PsycINFO(through OVID)and Web of Science databases for English articles,as well as China National Knowledge Infrastructure(CNKI),SinoMed,Wanfang Data,and the Chongqing VIP Chinese Science and Technology Periodical(VIP)Databases for Chinese articles published from the date of inception to 2 August 2022.Two researchers(BW,HZ)independently screened studies based on inclusion and exclusion criteria and assessed their quality.Results A total of 25157 studies were searched.Only 25 of them were ultimately included,containing 3336 subjects(1535 patients with MDD and NSSI,1403 patients with MDD without NSSI and 398 HCs).Included studies were divided into 6 categories:psychosocial factors(11 studies),neuroimaging(8 studies),stress and hypothalamic-pituitary-adrenal(HPA)axis(2 studies),pain perception(1 study),electroencephalogram(EEG)(2 studies)and epigenetics(1 study).Conclusions This systematic review indicates that patients with MDD and NSSI might have specific psychosocial factors,aberrant brain functions and neurochemical metabolisms,HPA axis dysfunctions,abnormal pain perceptions and epigenetic alterations.Baichuan Wu Huifeng Zhang Jinghong Chen Jiaye Chen Zhifen Liu Yuqi Cheng Tifei Yuan Daihui Peng 2023General Psychiatry2023,36,4:0
15DISTINGUISHING BETWEEN HYPERPLASTIC AND ADENOMATOUS POLYPS AND NORMAL COLONIC MUCOSA BY USING MULTIPHOTON LASER SCANNING MICROSCOPY显示文摘Precisely distinguishing between hyperplastic and adenomatous polyps and normal human colonic mucosa at the cellular level is of great medical significance.In this work,multiphoton laserscarming microscopy(MPLSM)was used to obtain the high.-contrast images and the morpho-logical characteristics from normal colonic mucosa,hyperplastic polyps and tubular adenoma.Byintegrating the length and area measurement tools and computing tool,we quantified thedifference of crypt morphology and the alteration of nuclei in normal and diseased human colonicmucosa.Our results demonstrated that the morphology of crypts had an obvious tendency tocystic dilatation or elongated in hyperplastic polyps and tubular adenoma.The cont ent andnumber of mucin droplets of the scattered goblet cells had a piecemeal reduction in hyperplastic polyps and a large decrease in tubular adenoma The nuclei of epithelial cells might be elongated and pseudostratified,but overt dysplasia was absent in hyperplastic polyps.Nevertheless,thenuclei showed enlarged,crowded,stratified and a rod-like structure,with loss of polarity intubular adenoma.These results suggest that MPLSM has the capacity to distinguish betweenhyperplastic and adenomat ous polyps and normal human colonic mucosa at the celular level.HONGSHENG LI CHANGYIN FENG ZHIFEN CHEN YINGHONG YANG WEIZHONG JIANG SHUANGMU ZHUO XIAOQIN ZHU GUOXIAN GUAN JIANXIN CHEN 2014Journal of Innovative Optical Health Sciences2014,7,1:0
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