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The 4th International Postgraduates Seminar on Refractories Held Successfully in Wuhan University of Science and Technology

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China's Refractories 2021年第3期30卷 49-50页

作者： Dong, Keqin liu, jing Lyu, Yong Gu, Huazhi Li, Yawei Department of Science and Technology of Hubei Province China Wuhan University of Science and Technology China Postgraduate Department China Materials and Metallurgy Department China The State Key Laboratory of Refractories and Metallurgy China

The 4thInternational Postgraduates,Seminar on Refractories was held from July 12 to 13,2021,in Wuhan University of Science and Technology,*** to the influence of global COVID-19 pandemic situation,the postgraduates,seminar combined online and offline *** seminar was drganized by Wuhan University of Science nd Technology (China),Montanuniversitaet Leoben (Austria) and Technische Universitaet Bergakademie Freiberg (Germany).*** Yawei,*** Harmuth,

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Crystal structure of a novel non-Pfam protein PF2046 solved using low resolution B-factor sharpening and multi-crystal averaging methods

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Protein & Cell 2010年第5期1卷 453-458页

作者： jing Su Yang Li Neil Shaw Weihong Zhou Min Zhang Hao Xu Bi-Cheng Wang Zhi-Jie liu National Laboratory of Biomacromolecules Institute of BiophysicsChinese Academy of SciencesBeijing 100101China College of Life Sciences Nankai UniversityTianjin 300071China School of Life Sciences Anhui UniversityHefei 230039China Department of Biochemistry and Molecular Biology University of GeorgiaAtlantaGA 30605USA

Sometimes crystals cannot diffract X-rays beyond 3.0Åresolution due to the intrinsic flexibility associated with the *** resolution diffraction data not only pose a challenge to structure determination,but also hamper interpretation of mechanistic *** of a 25.6 kDa non-Pfam,hypothetical protein,PF2046,diffracted X-rays to 3.38Åresolution.A combination of SeMet derived heavy atom positions with multiple cycles of B-factor sharpening,multi-crystal averaging,restrained refinement followed by manual inspection of electron density and model building resulted in a final model with a R value of 23.5(R_(free)=24.7).The asymmetric unit was large and consisted of six molecules arranged as a homodimer of *** of the structure revealed the presence of a RNA binding domain suggesting a role for PF2046 in the processing of nucleic acids.

关键词： low resolution diffraction PF2046 Bfactor sharpening a homodimer of trimers

Clinical online nomogram for predicting prognosis in recurrent hepatolithiasis after biliary surgery:A multicenter,retrospective study

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World Journal of Gastroenterology 2022年第7期28卷 715-731页

作者： Tian Pu Jiang-Ming Chen zi-Han Li Dong Jiang Qi Guo Ang-Qing Li Ming Cai zi-Xiang Chen Kun Xie Yi-Jun Zhao Cheng Wang Hui Hou Zheng Lu Xiao-Ping Geng Fu-Bao liu Department of General Surgery The First Affiliated Hospital of Anhui Medical UniversityHefei 230022Anhui ProvinceChina Department of General Surgery The First Affiliated Hospital of the University of Science and Technology of ChinaHefei 230001Anhui ProvinceChina Department of General Surgery The Second Affiliated Hospital of Anhui Medical UniversityHefei 230022Anhui ProvinceChina Department of General Surgery The First Affiliated Hospital of Bengbu Medical CollegeBengbu 233030Anhui ProvinceChina

BACKGROUND Methods for predicting the prognosis of patients undergoing surgery for recurrent hepatolithiasis after biliary surgery are currently *** To establish a nomogram to predict the prognosis of patients with recurrent hepatolithiasis after biliary *** In this multicenter,retrospective study,data of consecutive patients in four large medical centers who underwent surgery for recurrent hepatolithiasis after biliary surgery were retrospectively *** constructed a nomogram to predict the prognosis of recurrent hepatolithiasis in a training cohort of 299 patients,following which we independently tested the nomogram in an external validation cohort of 142 ***,we used the concordance index(C-index),calibration,area under curve,decision curve analysis,clinical impact curves,and visual fit indices to evaluate the accuracy of the *** Multiple previous surgeries[2 surgeries:Odds ratio(95%confidence interval),1.451(0.719-2.932);3 surgeries:4.573(2.015-10.378);≥4 surgeries:5.741(1.347-24.470)],bilateral hepatolithiasis[1.965(1.039-3.717)],absence of immediate clearance[2.398(1.304-4.409)],neutrophil-to-lymphocyte ratio≥2.462[1.915(1.099-3.337)],and albumin-to-globulin ratio≤1.5[1.949(1.056-3.595)]were found to be independent factors influencing the *** nomogram constructed on the basis of these variables showed good reliability in the training(C-index:0.748)and validation(C-index:0.743)*** with predictions using traditional classification models,those using our nomogram showed better agreement with actual observations in the calibration curve for the probability of endpoints and the receiver operating characteristic *** and clinical impact curves showed a larger net benefit of the *** The nomogram developed in this study demonstrated superior performance and discriminative power compared to the three traditional *** is easy to use,highly accurate,an

关键词： Gallstones Reoperation Risk factors Nomogram Prognosis Model

Groundwater regime and calculation of yield response in North China Plain: a case study of Luancheng County in Hebei Province

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Journal of Geographical Sciences 2002年第2期12卷 94-102页

作者： Jia Jin-sheng Yu jing-jie liu Chang-ming Institute of Geographic Sciences and Natural Resources Research CAS Beijing China

The groundwater table has been declining at a rate of 0.65 m/yr in Luancheng County since large scale groundwater extraction carried out in the 1960s. The drop of precipitation, substantial increase in agricultural output, variations of crop planting structure and construction of water conservancy projects in the headwater area all tie up with the decline of the groundwater table. On the basis of analyzing the hydrogeological conditions and the water resources utilization of Luancheng County, a three-dimensional groundwater flow model was developed to simulate the county抯 groundwater flow through finite-difference method using Visual Modflow software. We divide the research field into four parts after analyzing the hydrogeological condition. Based on parameter calibration and adjustment using measured data, the hydraulic conductivity and specific yield were simulated. Using the calibrated model, we analyze the agricultural water saving potentiality and its influence on the groundwater. The results are as follows: (1) if we decrease the amount of water extracted by 0.14×108 m3, the average groundwater table of the five observation wells in December will rise by 0.33 m; (2) if we decrease the water by 0.29×108 m3, the average groundwater table of the five observation wells in December will rise by 0.64 m; and (3) if we increase the water by 0.29×108 m3, the average groundwater table of the five observation wells in December will decline by 0.45 m. So we can draw a conclusion that controlling the agricultural water use is an important way to prevent the decline of groundwater table.

关键词： groundwater table Visual Modflow zonation of the hydrogeological parameters groundwater simulation model groundwater exploitation

Knockout of OsSPL10 confers enhanced glufosinate resistance in rice

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Plant Communications 2024年第2期5卷 7-10页

作者： Jin-Qiu Xia Qin-Yu Liang Da-Yu He Zheng-Yi Zhang Jie Wu jing Zhang Ping-Xia Zhao zi-Sheng Zhang Cheng-Bin Xiang Division of Life Sciences and Medicine Division of Molecular&Cell BiophysicsHefei National Science Center for Physical Sciences at the MicroscaleUniversity of Science and Technology of ChinaThe Innovation Academy of Seed DesignChinese Academy of SciencesHefeiAnhui Province 230027China

Dear Editor,Rice(Oryza sativa L.)is one of the world’s major food crops,feeding more than half of the global *** reduce labor and production costs,direct seeding is becoming popular for rice cultivation,but weeds have become a serious problem(Jin et al.,2022).Chemical herbicides are one of the most effective ways to control ***,the development of herbicide-resistant rice has great significance for modern rice production.

关键词： crops population. weed

Structural elucidation of sex pheromone components of the Geometridae Semiothisa cinerearia(Bremer et Grey)in China

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Chinese Journal of Chemistry 1993年第3期11卷 251-256页

作者： LI,Zheng-Ming YAO,En-Yun liu,Tian-Lin liu,zi-Ping WANG,Su-Hua Elemento-Organic Chemistry Institute,Nankai University,Tianjin 300071ZHU,Hai-Qing ZHAO,Gang REN,zi-Li Department of Biology,Nankai University,Tianjin 300071 1Elemento-Organic Chemistry Institute Nankai University Tionjin 3000712Department of Biology Nankai University Tianjin 300071

An extract from the female sex gland of Semiothisa cinerearia attracted conspecific males in field tests.A major active component was isolated from the extract and identified by GC-MS,GC-IR and microchemical reactions as cis-3,4-cpoxy-(Z,Z)-6,9-heptadecadiene,which showed strong EAG *** minor yet important component was identified as (Z,Z,Z)-3,6,9-heptadecatriene.

关键词： Bremer et Grey)in China Structural elucidation of sex pheromone components of the Geometridae Semiothisa cinerearia

A liquid loading prediction method of gas pipeline based on machine learning

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Petroleum Science 2022年第6期19卷 3004-3015页

作者： Bing-Yuan Hong Sheng-Nan liu Xiao-Ping Li Di Fan Shuai-Peng Ji Si-Hang Chen Cui-Cui Li jing Gong National-Local Joint Engineering Laboratory of Harbor Oil&Gas Storage and Transportation Technology/Zhejiang Provincial Key Laboratory of Petrochemical Pollution Control School of Petrochemical Engineering and EnvironmentZhejiang Ocean UniversityZhoushan316022China National Engineering Laboratory for Pipeline Safety/MOE Key Laboratory of Petroleum Engineering/Beijing Key Laboratory of Urban Oil and Gas Distribution Technology China University of Petroleum-BeijingBeijing102249China China Huadian Group Energy Co. Ltd.North China BranchTianjin300280China China Petroleum Engineering&Construction Corp Beijing100120China

The liquid loading is one of the most frequently encountered phenomena in the transportation of gas pipeline,reducing the transmission efficiency and threatening the flow ***,most of the traditional mechanism models are semi-empirical models,and have to be resolved under different working conditions with complex calculation *** development of big data technology and artificial intelligence provides the possibility to establish data-driven *** paper aims to establish a liquid loading prediction model for natural gas pipeline with high generalization ability based on machine ***,according to the characteristics of actual gas pipeline,a variety of reasonable combinations of working conditions such as different gas velocity,pipe diameters,water contents and outlet pressures were set,and multiple undulating pipeline topography with different elevation differences was *** a large number of simulations were performed by simulator OLGA to obtain the data required for machine *** data preprocessing,six supervised learning algorithms,including support vector machine(SVM),decision tree(DT),random forest(RF),artificial neural network(ANN),plain Bayesian classification(NBC),and K nearest neighbor algorithm(KNN),were compared to evaluate the performance of liquid loading ***,the RF and KNN with better performance were selected for parameter tuning and then used to the actual pipeline for liquid loading location *** with OLGA simulation,the established data-driven model not only improves calculation efficiency and reduces workload,but also can provide technical support for gas pipeline flow assurance.

关键词： Liquid loading Data-driven method Machine learning Gas pipeline Multiphase flow

A quantitative attribute-based benchmark methodology for single-target visual tracking

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Frontiers of Information Technology & Electronic Engineering 2020年第3期21卷 405-422页

作者： Wen-jing KANG Chang liu Gong-liang liu School of Information Science and Engineering Harbin Institute of TechnologyWeihai 264209China School of Electrical and Electronic Engineering Nanyang Technological UniversitySingapore 639798Singapore

In the past several years,various visual object tracking benchmarks have been proposed,and some of them have been used widely in numerous recently proposed ***,most of the discussions focus on the overall performance,and cannot describe the strengths and weaknesses of the trackers in ***,several benchmark measures that are often used in tests lack convincing *** this paper,12 frame-wise visual attributes that reflect different aspects of the characteristics of image sequences are collated,and a normalized quantitative formulaic definition has been given to each of them for the first *** on these definitions,we propose two novel test methodologies,a correlation-based test and a weight-based test,which can provide a more intuitive and easier demonstration of the trackers’performance for each *** these methods have been applied to the raw results from one of the most famous tracking challenges,the Video Object Tracking(VOT)Challenge *** the tests,most trackers did not perform well when the size of the target changed rapidly or intensely,and even the advanced deep learning based trackers did not perfectly solve the *** scale of the targets was not considered in the calculation of the center location error;however,in a practical test,the center location error is still sensitive to the targets’changes in size.

关键词： Visual tracking Performance evaluation Visual attributes Computer vision

天舒胶囊联合氟桂利嗪治疗前庭性偏头痛的疗效观察

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现代药物与临床 2022年第1期37卷 70-74页

作者：周子靖天津市第三中心医院分院天津300250 天津中医药大学天津301617

目的探讨天舒胶囊联合氟桂利嗪治疗前庭性偏头痛的临床效果。方法选取2019年1月—2021年6月天津市第三中心医院分院中医科诊治的120例前庭性偏头痛患者,按随机数字表法分为对照组和治疗组,每组各60例。对照组患者口服盐酸氟桂利嗪胶囊,1... 详细信息

目的探讨天舒胶囊联合氟桂利嗪治疗前庭性偏头痛的临床效果。方法选取2019年1月—2021年6月天津市第三中心医院分院中医科诊治的120例前庭性偏头痛患者,按随机数字表法分为对照组和治疗组,每组各60例。对照组患者口服盐酸氟桂利嗪胶囊,10 mg/次,1次/d。治疗组在对照组基础上口服天舒胶囊,4粒/次,3次/d。两组疗程均为12周,随访期为8周。观察两组的临床疗效,比较两组眩晕视觉模拟评分(VAS)、临床症状、眩晕障碍量表(DHI)和脑血流速度。结果治疗后,治疗组明显改善率是73.3%,明显高于对照组的33.3%(P<0.05)。治疗后,两组VAS评分均显著降低,眩晕平均每月发作次数与持续时间均显著减少(P<0.05);治疗后,治疗组VAS评分和临床症状改善均优于对照组(P<0.05)。治疗后,两组躯体评分、情绪评分、功能评分及DHI总分均显著降低(P<0.05);治疗后,治疗组DHI评分显著低于对照组(P<0.05)。治疗后,两组大脑椎动脉(VA)和基底动脉(BA)的平均血流速度均显著降低(P<0.05);治疗后,治疗组VA和BA的平均血流速度均低于对照组(P<0.05)。结论天舒胶囊联合氟桂利嗪治疗前庭性偏头痛疗效良好,可改善临床症状,缩减发作频率及发作时间,在躯体及情绪维度提升患者生活质量,值得临床推广。

关键词：天舒胶囊盐酸氟桂利嗪胶囊前庭性偏头痛临床症状眩晕障碍量表脑血流速度