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Consumption of garlic and risk of colorectal cancer:An updated meta-analysis of prospective studies

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World Journal of Gastroenterology 2014年第41期20卷 15413-15422页

作者： ji-yi Hu yi-Wang Hu jiao-jiao Zhou Meng-Wen Zhang Dan Li Shu Zheng Cancer Institute Key Laboratory of Cancer Prevention and InterventionChina National Ministry of Educationthe Second Affiliated HospitalSchool of MedicineZhejiang University

AIM: To conduct an updated meta-analysis of prospective studies addressing the association between garlic consumption and colorectal cancer.

关键词： Colorectal cancer Garlic Garlic supplement Cancer prevention Meta-analysis

Using capillary electrophoresis mobility shift assay to study the interaction of CdTe quantum dots with bovine serum albumin

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Chinese Chemical Letters 2008年第6期19卷 707-710页

作者： Li Wen Shao Chao Qing Dong Xiang yi Huang ji Cun Ren College of Chemistry ＆ Chemical Engineering Shanghai Jiaotong University Shanghai 200240 China

In this work, the capillary electrophoresis mobility shift assay （CEMSA） was first adopted to study the interaction of protein with quantum dots （QDs）. In this study, bovine serum albumin （BSA） and CdTe QDs were used as model samples. We observed that BSA was facilely adsorbed to CdTe QDs surface, and the QD-BSA complex was formed by a 1：1 stoichiometric ratio. A value of 2.17 4-0.27 × 10^6 mol^-1 L^-1 （at 25 ℃） for the association constant was obtained by CEMSA.

关键词： CdTe quantum dots Bovine serum albumin Capillary electrophoresis mobility shift assay Interaction

Computed tomography diagnosed left ovarian venous thrombophlebitis after vaginal delivery:A case report

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World Journal of Clinical Cases 2023年第4期11卷 896-902页

作者： jin-jin Wang Chu-Chu Hui yi-Ding ji Wei Xu Department of Radiology The Ninth People’s Hospital of Suzhou CitySuzhou 215200Jiangsu ProvinceChina Department of Ultrasound The Ninth People’s Hospital of Suzhou CitySuzhou 215200Jiangsu ProvinceChina Department of Emergency Medicine The Ninth People’s Hospital of Suzhou CitySuzhou 215200Jiangsu ProvinceChina

BACKGROUND Postpartum ovarian vein thrombophlebitis(POVT)is a rare but serious postpartum complication that affects mostly postpartum women.A high index of suspicion is required when faced with sudden postpartum abdominal *** SUMMARY A 25-year-old healthy woman who accepted a vaginal delivery procedure suffered fever(temperature 39.6℃)one day after delivery,accompanied with left lower abdominal *** examination indicated mild tenderness in the left lower abdomen,accompanied with rebound *** patient was confirmed to have left ovarian venous thrombosis with inflammation after receiving a multidetector row computed tomography *** POVT is a rare and dangerous postpartum complication.A high index of suspicion is required for the occurrence of ovarian venous thrombosis when faced with postpartum abdominal pain and *** application of Doppler ultrasound,computed tomography,magnetic resonance imaging and other auxiliary examinations is conducive to timely and accurate diagnosis of POVT,thus reducing maternal mortality.

关键词： Ovarian venous thrombosis Postpartum Multi-detector row computed tomography Case report

A two-dimensional tetragonal structure of vanadium telluride

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Nano Research 2023年第5期16卷 7749-7755页

作者： Zizhao Liu Ye Tao Zhiqiang Cui yi ji Xuhan Zhou Peigen Li Yunwei Zhang Dingyong Zhong School of Physics Sun Yat-sen UniversityGuangzhou 510275China State Key Laboratory of Optoelectronic Materials and Technologies Sun Yat-sen UniversityGuangzhou 510275China

The family of vanadium chalcogenides with variable stoichiometry and abundant crystallographic structures are promising platforms for realizing exotic emergent ***,we report on a novel two-dimensional(2D)tetragonal structure of vanadium telluride(VTe)grown by molecular beam *** atomic structures and electronic properties are revealed by scanning tunneling microscopy and first-principles *** from the hexagonal or trigonal lattices of 2D VTe_(2),the 2D VTe with a V:Te ratio of 1:1 exhibits an uncommon square ***-zero differential conductivity at the Fermi energy detected by scanning tunneling spectroscopy reveals the metallic feature of ***,Friedel oscillations are observed near chiral point defects and domain walls,illustrating the itinerant nature of the electrons close to the Fermi *** firstprinciples structure searches identify a 2D body-centered cubic(bcc)-like structure with a favorable formation energy to be the candidate of the metallic phase of the tetragonal VTe obtained *** on our calculations the 2D bcc-like structure possesses a strong 2D antiferromagnetic *** work enriches the family of vanadium chalcogenides and provides a possible 2D antiferromagnetic material for fabricating advanced spintronic devices.

关键词： vanadium telluride molecular beam epitaxy scanning tunneling microscopy two-dimensional magnetism first-principles calculation

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含准Z源的双永磁电机驱动系统的研究及仿真

计算机仿真 2024年第7期41卷 195-199,206页

作者：李军军易吉良李中启湖南工业大学轨道交通学院湖南株洲412007

由于九开关逆变器通过共享模式,可减少电力电子器件数量,减小驱动装置的体积与重量,适用于双机驱动的应用场合。针对九开关逆变器双机驱动系统中单台电机电压利用率低的问题,研究了一种含准Z源的双永磁同步电机驱动系统。为了实现双机... 详细信息

由于九开关逆变器通过共享模式,可减少电力电子器件数量,减小驱动装置的体积与重量,适用于双机驱动的应用场合。针对九开关逆变器双机驱动系统中单台电机电压利用率低的问题,研究了一种含准Z源的双永磁同步电机驱动系统。为了实现双机驱动系统中每台电机的独立可控,研究了基于SVPWM调制的双机分时控制原理。为满足不同的工况,研究了永磁同步电机的恒转矩-弱磁控制策略,利用间接电压法对Z源电压进行控制,以维持Z源电压的稳定。搭建了含准Z源的双永磁同步驱动系统仿真模型,仿真结果表明,永磁同步电机和准Z源的控制策略行之有效,分时控制可实现双机驱动系统的独立可控,可满足工程应用的需求。

关键词：九开关逆变器源分时控制永磁同步电机

Fecal microbiota transplantation in the metabolic diseases:Current status and perspectives

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World Journal of Gastroenterology 2022年第23期28卷 2546-2560页

作者： Lie Zheng Yong-yi ji Xin-Li Wen Sheng-Lei Duan Department of Gastroenterology Shaanxi Hospital of Traditional Chinese MedicineXi’an 710003Shaanxi ProvinceChina Department of Neurology Xi’an Hospital of Traditional Chinese MedicineXi’an 710021Shaanxi ProvinceChina

With the development of microbiology and metabolomics,the relationship between the intestinal microbiome and intestinal diseases has been *** microbiota transplantation(FMT),as a new treatment method,can affect the course of many chronic diseases such as metabolic syndrome,malignant tumor,autoimmune disease and nervous system *** the mechanism of action of FMT is now well understood,there is some controversy in metabolic diseases,so its clinical application may be *** transplantation is recommended by clinical medical guidelines and consensus for the treatment of recurrent or refractory Clostridium difficile infection,and has been gradually promoted for the treatment of other intestinal and extraintestinal ***,the initial results are varied,suggesting that the heterogeneity of the donor stools may affect the efficacy of *** success of FMT depends on the microbial diversity and composition of donor ***,clinical trials may fail due to the selection of ineffective donors,and not to faulty indication selection for FMT.A new understanding is that FMT not only improves insulin sensitivity,but may also alter the natural course of type 1 diabetes by modulating *** this review,we focus on the main mechanisms and deficiencies of FMT,and explore the optimal design of FMT research,especially in the field of cardiometabolic diseases.

关键词： Fecal microbiota transplantation Metabolic diseases Inflammatory bowel disease Type 1 diabetes Metabolic syndrome

Determination of the liquidus and solidus temperatures of FeCrAl stainless steel

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International Journal of Minerals,Metallurgy and Materials 2015年第11期22卷 1141-1148页

作者： Zhi-biao Han jian-hua Liu Yang He Kang-wei Li yi-long ji jian Liu Research Institute of Metallurgy Engineering University of Science and Technology Beijing

The liquidus and solidus temperatures of FeCrAl stainless steel were determined by differential scanning calorimetry（DSC） at different heating rates. They were also calculated by Thermo-calc software and empirical formulae separately. The accuracy of calculation results was assessed by comparison with the corresponding DSC results. The liquidus temperatures calculated by empirical formulae, which exhibited a maximum deviation of 8.6℃ were more accurate than those calculated using Thermo-calc, which exhibited a maximum deviation of 12.11℃. On the basis of Thermo-calc calculations performed under the Scheil model, the solidus temperature could be well determined from solid fraction（fS） vs. temperature（t） curves at fS = 0.99. Furthermore, a theoretical analysis to determine the solidus temperature with this method was also provided.

关键词： ferritic stainless steel liquidus temperature solidus temperature differential scanning calorimetry

A comprehensive research on wear resistance of GH4169 superalloy in longitudinal-torsional ultrasonic vibration side milling with tool wear and surface quality

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Chinese Journal of Aeronautics 2024年第4期37卷 556-573页

作者： Baoqi CHANG Zhaoxi yi Fen ZHANG Lian DUAN ji-an DUAN School of Mechanical and Electrical Engineering Central South UniversityChangsha 410083China State Key Laboratory of High Performance and Complex Manufacturing Central South UniversityChangsha 410083China School of Physics and Electronics Central South UniversityChangsha 410083China

To improve the service and machining performance of the workpiece, the tool wear mechanisms, surface machining quality, and wear resistance in conventional side milling(CSM)and longitudinal-torsional ultrasonic vibration side milling(LTUVSM) of GH4169 superalloy at different cutting lengths are investigated systematically. Tool wear mechanisms are revealed and the correlation between machined surface quality with tool wear is analyzed correspondingly. Tool wear patterns mainly include adhesive wear, diffusion wear, abrasive wear, and chipping *** surface quality is achieved in LTUVSM due to a maximum reduction of flank wear bandwidth and wear rate by 71.9% and 71.5%, respectively, compared to CSM. The friction coefficient,initial wear stage time, and wear volume of dry sliding wear were measured to evaluate the workpiece wear resistance. The maximum reductions in friction coefficient and wear volume in LTUVSM are 18.2% and 15.8% compared to CSM. The regular ultrasonic vibration textures suppress the friction and the growth of contact nodes in the contact area, decreasing the degree of surface wear, which is demonstrated by a 38.8% increase in initial wear stage time compared to *** conclusion, the workpiece in LTUVSM exhibits higher wear resistance because of the improvement of tool wear and the guarantee of surface quality.

关键词： Dry sliding wear Surface quality Tool wear Ultrasonic vibration Wear resistance

新时代农林高职院校样板支部创建的探索与实践——以江苏农林职业技术学院农学园艺学院学生党支部为例

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教育教学论坛 2024年第30期 125-128页

作者：嵇怡杨淑莉杨宝林沈艳江苏农林职业技术学院茶与食品科技学院江苏句容212400 江苏农林职业技术学院农学园艺学院江苏句容212400

高校学生党支部是高校开展思想政治教育的重要阵地,也是落实立德树人根本任务的重要载体。开展新时代高校党建工作样板支部创建工作,有利于学校以点带面,对标争先,促进基层党组织全面提质,以高质量的党建引领高质量事业发展;有利于发挥... 详细信息

高校学生党支部是高校开展思想政治教育的重要阵地,也是落实立德树人根本任务的重要载体。开展新时代高校党建工作样板支部创建工作,有利于学校以点带面,对标争先,促进基层党组织全面提质,以高质量的党建引领高质量事业发展;有利于发挥党支部的战斗堡垒作用,团结凝聚师生。加强大学生样板党支部建设是高校落实组织育人的典型示范,有利于发挥学生党支部的战斗堡垒作用。以农林高职院校学生党支部为例,结合全国样板支部的培育要求,从样板支部的创建背景出发,提出农林高职院校样板支部的培育创建思路以及可供借鉴的经验启示。

关键词：样板支部学生党支部创建思路经验启示