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International Journal of Coal Science & Technology 2018年第4期5卷 508-518页

作者： Kai Zhang jiajun Yang Yuning ji Yu Xia School of Chemistry and Environment China University of Mining and Technology (Beijing)Beijing 100083China

Heavy metal (loid)(HM) accumulation in the soil and the HM spatiotemporal distribution have important implication for soil pollution prevention and remediation. The present study investigated the concentrations and spatiotemporal distributions of lead (Pb), mercury (Hg), cadmium (Cd), chromium (Cr) and arsenic (As) in the topsoil of a coal chemical plant in Ningxia Aulonomous region (Ningxia), China. Topsoil samples (/?= 153) were obtained using the checkerboard method, and the HM concentrations were determined. The soil residual rates of the five HMs were measured with leaching experinients and were applied in a soil environmental capacity model to predict the quarHitiHive variation of the HM concentrations. The predicted results were employed to estimate the HM spatiotemporal distribution within 2() years with the Kriging technique. The number of sampling sites, where all five HM concentratio ns exceed their corresponding background values in Ningxia, would be increased from 0 to 90% within 1() years of the plant operation. In addition, Pb and Cd were distributed along the traffic routes. Mercury and As were distributed near fuel gas emission vents. Chromium was mainly accumulated in slag dumps. The study may provide the theoretical and practical foun d at ion for future HM pollution control in coal chemical plants.

关键词： Coal chemical plant Soil Heavy metal(loid) Kriging Simulation prediction

Cooperative Dynamics in Lattice-Embedded Scale-Free Networks

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Communications in Theoretical Physics 2009年第9期52卷 411-415页

作者： SHANG Li-Hui ZHANG Ming-ji YANG Yan-Qing Department of Control Science and Engineering University of Shanghai for Science and Technology Shanghai 200093China

We investigate cooperative behaviors of lattice-embedded scale-free networking agents in the prisoner'sdilemma game model by employing two initial strategy distribution mechanisms,which are specific distribution to themost connected sites (hubs) and random *** study indicates that the game dynamics crucially dependson the underlying spatial network structure with different strategy distribution *** cooperators' specificdistribution contributes to an enhanced level of cooperation in the system compared with random one,and cooperationis robust to cooperators' specific distribution but fragile to defectors' specific ***,unlike the specificcase,increasing heterogeneity of network does not always favor the emergence of cooperation under random ***,we study the geographical effects and find that the graphically constrained network structure tends toimprove the evolution of cooperation in random case and in specific one for a large temptation to defect.

关键词： geographical networks prisoner's dilemma cooperation heterogeneity

U-Pb zircon age for the Daohugou Biota at Ningcheng of Inner Mongolia and comments on related issues

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Chinese Science Bulletin 2006年第21期51卷 2634-2644页

作者： LIU Yongqing LIU Yanxue ji Shu'an YANG Zhiqing Institute of Geology Chinese Academy of Geological Sciences Beijing 100037 China Key Laboratory of Insect Evolution and Environmental Changes Capital Normal University Beijing 100037 China Beijing SHRIMP Center Beijing 100037 China

SHRIMP U-Pb zircon dating was carried out for the Daohugou Biota near Ningcheng of Inner Mongolia and for lavas overlying or underlying sala-mander-bearing strata at Reshuitang in Lingyuan of West Liaoning. The results suggest that the Dao- hugou Biota occurred at an interval from 168 Ma to 164―152 Ma. Both the Daohugou Biota and the salamander-bearing fossil assemblage are the same biota and thus developed from 168 to 152 Ma, i.e. from late Middle Jurassic to the early Late Jurassic. The Daohugou Biota-bearing rocks, resting on the jiulongshan Formation in disconformity and being overlain in unconformity by Late Jurassic Tuchengzi Formation and Early Cretaceous rocks containing the Jehol Biota, are mainly composed of volcanic-sedi- mentary rocks in a normal sequence. It is recom- mended that the Daohugou Biota and the related stratigraphy should be correlated with the Tiaojishan Formation (Lanqi Formation in West Liaoning) or its synchronous rocks. It is suggested that the Dao- hugou Biota and the Jehol Biota would be neither taken into one biota nor considered as the earliest elements of the Jehol Biota. The Daohugou Biota and the related rocks and the Yixian Formation were respectively formed in different periods of volcanic-sedimentary tectonics.

关键词：生物群 U-Pb锆石定年内蒙古火山岩火蜥蜴

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甘孜—玉树断裂当江段晚第四纪滑动速率

地球物理学报 2017年第10期60卷 3872-3888页

作者：吴继文黄学猛谢富仁中国地震局地壳动力学重点实验室中国地震局地壳应力研究所北京100085 中国地质科学院岩溶地质研究所桂林541004

甘孜—玉树断裂带是青藏高原中东部的一条大型左旋走滑断裂带,同时也是羌塘地体和巴颜喀拉地体的重要地质边界.当江断裂位于甘孜—玉树断裂带的西北段,沿线发育当江荣、当江和哲达等一系列串珠状第四纪断层谷地.通过遥感影像解译和数字... 详细信息

甘孜—玉树断裂带是青藏高原中东部的一条大型左旋走滑断裂带,同时也是羌塘地体和巴颜喀拉地体的重要地质边界.当江断裂位于甘孜—玉树断裂带的西北段,沿线发育当江荣、当江和哲达等一系列串珠状第四纪断层谷地.通过遥感影像解译和数字高程地形模型(DEM)数据分析,结合野外构造地貌调查,以及断错地貌面的光释光年代测定,发现断裂沿线冲沟、河流阶地和洪积扇等断错地貌发育,反映了该断裂晚第四纪左旋走滑活动性强烈.该断裂最新活动时代为全新世晚期,距今约3.04 ka.当江断裂晚更新世以来的左旋滑动速率为7±3mm·a^(-1).研究结果为该区的地震危险性分析和高原东北部的运动学特征探讨提供了基础资料.

关键词：晚第四纪滑动速率运动学特征当江断裂甘孜-玉树断裂带青藏高原

Recovery from a biliary stricture of a common bile duct ligature injury:A case report

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World Journal of Clinical Cases 2020年第16期8卷 3567-3572页

作者： Zhe Fan ji-Yong Pan Ye-Wei Zhang Department of General Surgery the Third People’s Hospital of DalianDalian Medical UniversityDalian 116033Liaoning ProvinceChina Department of General Surgery Zhongda HospitalSchool of MedicineSoutheast UniversityNanjing 210009Jiangsu ProvinceChina

BACKGROUND Cholecystectomy is a common elective procedure for cholecystic diseases,including cholecystitis and *** bile duct injury is a major complication in both open and laparoscopic cholecystectomy(LC).The number of cholecystectomies performed has increased due to popularization and application of the laparoscopic technique,which has led to an increase in the number of bile duct *** SUMMARY A 65-year-old man presented to the General Surgery Department with a complaint of repeated right upper quadrant pain for 2 years that had worsened over the previous *** patient had a history of gallstones and hypertension.A LC was performed;it was found that a biliary stricture of 53 h duration was caused by a ligature injury of the common bile duct during the *** laparoscopic exploration was performed,and the stricture was *** LC is a common surgical procedure,but if a complication occurs,it is important for the surgeon to consider another exploratory surgery.

关键词： Biliary stricture Common bile duct injury Laparoscopic Cholecystectomy Case report Recovery

SYNTHESIS，CHARACTERIZATION　AND　CATALYTIC　ACTIVITY　OF　NEW　LAYERED　MICROPOROUS　MATERIALS－ZnAl　ANIONIC　CLAY　PILLARED　BY　GaW9Z3

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Chinese Journal of Catalysis 1995年第5期 349-350页

作者： Zhang,ji-yu Yu,Xin-wu Zhang,Shu-yun Hu,Chang-wen liang,Zhao-jun and Wang,En-bo(Department of Chemistry, Northeast Normal University, Changchun 130024)

ＳＹＮＴＨＥＳＩＳ，ＣＨＡＲＡＣＴＥＲＩＺＡＴＩＯＮ　ＡＮＤ　ＣＡＴＡＬＹＴＩＣ　ＡＣＴＩＶＩＴＹ　ＯＦ　ＮＥＷ　ＬＡＹＥＲＥＤ　ＭＩＣＲＯＰＯＲＯＵＳ　ＭＡＴＥＲＩＡＬＳ－ＺｎＡｌ　ＡＮＩＯＮＩＣ　ＣＬＡＹ　ＰＩＬ... 详细信息

ＳＹＮＴＨＥＳＩＳ，ＣＨＡＲＡＣＴＥＲＩＺＡＴＩＯＮ　ＡＮＤ　ＣＡＴＡＬＹＴＩＣ　ＡＣＴＩＶＩＴＹ　ＯＦ　ＮＥＷ　ＬＡＹＥＲＥＤ　ＭＩＣＲＯＰＯＲＯＵＳ　ＭＡＴＥＲＩＡＬＳ－ＺｎＡｌ　ＡＮＩＯＮＩＣ　ＣＬＡＹ　ＰＩＬＬＡＲＥＤ　ＢＹ　ＧａＷ９Ｚ３Ｓ...

关键词： anionic clay trisubstituted heteropolyanion transition metal intercalation catalytic esterification

The Predictability of Ocean Environments that Contributed to the 2020/21 Extreme Cold Events in China:2020/21 La Niña and 2020 Arctic Sea Ice Loss

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Advances in Atmospheric Sciences 2022年第4期39卷 658-675页

作者： Fei ZHENG ji-Ping LIU Xiang-Hui FANG Mi-Rong SONG Chao-Yuan YANG Yuan YUAN Ke-Xin LI ji WANG jiang ZHU International Center for Climate and Environment Science(ICCES) Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters Nanjing University of Information Science&TechnologyNanjing 210044China Department of Atmospheric and Environmental Sciences University at Albany State University of New YorkAlbanyNY 12222USA Department of Atmospheric and Oceanic Sciences&Institute of Atmospheric Sciences Fudan UniversityShanghai 200438China State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics(LASG) Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China School of Atmospheric Sciences Sun Yat-sen UniversityZhuhai 519082China National Climate Center Beijing 100081China University of Chinese Academy of Sciences Beijing 100049China Beijing Municipal Climate Center Beijing 100089China

Several consecutive extreme cold events impacted China during the first half of winter 2020/21,breaking the low-temperature records in many *** to make accurate climate predictions of extreme cold events is still an urgent *** synergistic effect of the warm Arctic and cold tropical Pacific has been demonstrated to intensify the intrusions of cold air from polar regions into middle-high latitudes,further influencing the cold conditions in ***,climate models failed to predict these two ocean environments at expected lead *** seasonal climate forecasts only predicted the 2020/21 La Niña after the signal had already become apparent and significantly underestimated the observed Arctic sea ice loss in autumn 2020 with a 1-2 month *** this work,the corresponding physical factors that may help improve the accuracy of seasonal climate predictions are further *** the 2020/21 La Niña prediction,through sensitivity experiments involving different atmospheric-oceanic initial conditions,the predominant southeasterly wind anomalies over the equatorial Pacific in spring of 2020 are diagnosed to play an irreplaceable role in triggering this cold event.A reasonable inclusion of atmospheric surface winds into the initialization will help the model predict La Niña development from the early spring of *** predicting the Arctic sea ice loss in autumn 2020,an anomalously cyclonic circulation from the central Arctic Ocean predicted by the model,which swept abnormally hot air over Siberia into the Arctic Ocean,is recognized as an important contributor to successfully predicting the minimum Arctic sea ice extent.

关键词： extreme cold event predictability La Niña Arctic sea ice loss

Construction of attenuated Salmonella typhimurium Strain expressing Helicobacter pyloriconservative region of adhesin antigen and its immunogenicity

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World Journal of Gastroenterology 2004年第17期10卷 2498-2502页

作者： YangBai Ya-LiZhang ji-DeWang Zhao-ShanZhang Dian-YuanZhou PLAInstituteforDigestiveMedicine NanfangHospitaltheFirstMilitaryMedicalUniversityGuangzhou510515GuangdongProvinceChina InstituteofBiotechnology AcademyofMilitaryMedicalSciencesBeijing100071China

AIM: To construct a non-resistant and attenuated Salmonella typhimurium ( S. typhimurium) strain which expresses conservative region of adhesion AB of Helicobacter pylori(Hpylon) and evaluate its ***: The AB gene amplified by PCR was inserted into the expression vector pYA248 containing asd gene and through two transformations introduced into the delta Cya1 delta Crp1 delta Asd attenuated Salmonella typhimurium strain, constructing balanced lethal attenuated Salmonella typhimurium strains X4072 (pYA248-AB). Bridged ELISA method was used to measure the expression of AB antigen in sonicate and culture supematant. According to the method described by Meacock, stability of the recombinant was evaluated. Semi-lethal capacity test was used to evaluate the safety of recombinant. The immunogenicity of recombinant was evaluated with animal ***: The attenuated S. typhimurium X4072 (pYA248-AB) which expresses AB was successfully ***, bridged ELISA assay showed that the content of AB in recombinant X4072 (pYA248- AB) culture supematant was higher than that was in thallus lytic liquor. And after recombinant X4072 (pYA248- AB) was cultured for 100 generations without selection pressure, bhe entire recombinant bacteria selected randomly could grow, and the AB antigen was defected positive by ELISA. The growth curve of the recombinant bacteria showed that the growth states of X4072 (pYA248) and X4072 (pYA248-AB) were basically consistent. The survival rate of C57BL/6 was still 100%, at 30 d after mice taking X4072 (pYA248-AB) 1.0×l0^10 cfu orally. Oral immunization of mice with X4072 (pYA248-AB) induced a specific immune ***: In vitro recombinant plasmid appears to be stable and experiments on animals showed that the recombinant strains were safe and immunogenic in vitro,which providing a new live oral vaccine candidate for protection and care of H pylori infection.

关键词：沙门氏菌属盲肠疾病疲劳反应哈比特属幽门菌附着因子保守治疗抗原免疫原性消化系统

Field monitoring of wheat seedling stage with hyperspectral imaging

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International Journal of Agricultural and Biological Engineering 2016年第5期9卷 143-148页

作者： Wu Qiong Wang Cheng Fang jingjing ji jianwei College of Information and Electrical Engineering Shenyang Agricultural UniversityShenyang 1008611China Beijing Research Center of Intelligent Equipment for Agriculture Beijing 100097China

Nutrient elements such as chlorophyll,nitrogen and water at the seedling stage are important key factors that could influence growth,development and even the final yield of *** this study,the spectral data of canopy and single wheat plant leaves at seedling stage were acquired in field by using ASD non-imaging hyperspectrometer and imaging spectrometer respectively to establish prediction models for monitoring the growth at the seedling stage of *** to the comparative analysis of models results built through partial least square algorithm(PLS),it was found that the models built using spectral data of canopy based on ASD non-imaging hyperspectrometer and imaging spectrometer both had low precision,which was possibly caused by background such as soil;while the model established from single wheat plant leaves based on the imaging spectrometer had a better *** last,the PLS model was established for chlorophyll SPAD value of wheat seedling leaves based on imaging spectrometry and its correlation coefficient R reached 0.8836,and the correlation coefficient R of the relevant model for nitrogen content was 0.8520,suggesting that the superiority of location monitoring of growth at seedling stage of wheat based on hyperspectral imaging is significant.

关键词： wheat seedling monitoring ASD hyperspectral imaging partial least squares

Differences in Incubation Length and Hatchling Morphology among Five Species of Oviparous Phrynocephalus Lizards (Agamidae) from China

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Asian Herpetological Research 2013年第4期4卷 225-232页

作者： Zheng WANG Li MA Min SHAO Xiang ji College of Forest Resources and Environment Nanjing Forestry University jiangsu Key Laboratory for Biodiversity and Biotechnology College of Life Sciences Nanjing Normal University Hangzhou Key Laboratory for Animal Adaptation and Evolution School of Life Sciences Hangzhou Normal University

We incubated eggs of five Phrynocephalus species （P. albolineatus, P. axillaries, P. grumgrzimailoi, P. helioscopus and P. przewalskii） at three constant temperatures （24℃, 28℃ and 32℃） to examine differences in incubation length and hatchling morphology among species and among temperature treatments. We combined data from this study with those reported previously for P. frontalis and P. versicolor to examine whether embryonic stage at laying is a causal factor for interspecific variation in incubation length, and whether the phylogenetic relationship inferred from hatchling morphology is consistent with the relationship based on mitochondrial DNA data. Mean values for incubation length differed among the five species studied herein and, in all these five species, incubation length decreased at a decreasing rate as temperature increased. In none of the five species did hatchling size （snout-vent length and body mass） and other morphological variables differ among the three temperature treatments. The seven oviparous Phrynocephalus lizards found in China differ from each other in hatchling morphology, and embryonic stage at laying is a causal factor of inter- and intra-specific variation in incubation length. The phylogenetic relationship inferred from hatchling morphology is not always consistent with the currently known relationship based on mitochondrial DNA data. Data from this study and those reported previously allow the conclusion that any Phrynocephalus species may have its unique position along the axis defined by hatchling morphology.

关键词： Agamidae Phrynocephalus lizards oviparous species egg incubation incubation length hatchling morphology