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钛基锡锑阳极电化学氧化去除水中的四环素

环境工程学报 2018年第1期12卷 57-64页

作者：智丹王建兵周云惠汪东亮龚妍熹嵇玉仙张峰源王维一中国矿业大学(北京)化学与环境工程学院北京100083

以钛基锡锑电极为阳极,研究了电化学氧化技术对水中四环素的去除效果。考察了电流密度(5~25 mA·cm^(-2))、极板间距(5~25 mm)、四环素初始浓度(5~100 mg·L^(-1))和电解质种类(NaClO_4、Na_2SO_4和NaNO_3)对四环素电化学降解效率的影... 详细信息

以钛基锡锑电极为阳极,研究了电化学氧化技术对水中四环素的去除效果。考察了电流密度(5~25 mA·cm^(-2))、极板间距(5~25 mm)、四环素初始浓度(5~100 mg·L^(-1))和电解质种类(NaClO_4、Na_2SO_4和NaNO_3)对四环素电化学降解效率的影响。研究表明:钛基锡锑电极电化学降解四环素反应符合一级反应动力学规律(R^2>0.95);四环素降解效率随电流密度增大而增大,当电流密度大于15 mA·cm^(-2)时,四环素的降解反应受传质控制;四环素降解效率随极板间距增大而减小,在传质控制条件下,反应速率与极板间距成反比;初始浓度小于20 mg·L^(-1)时,受传质影响,四环素降解效率基本不随初始浓度变化,当初始浓度大于20 mg·L^(-1)时,四环素降解效率随初始浓度增大而减小;Na_2SO_4为电化学降解水中四环素较合适的电解质。

关键词：四环素电化学氧化钛基锡锑电极反应动力学

大黄牡丹汤加味对结直肠癌术后患者肠道菌群及Th1/Th2型细胞因子的影响

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新中医 2023年第20期55卷 25-30页

作者：林庆国王天明季玉贤严万能舟山医院浙江舟山316000 克拉玛依市独山子人民医院新疆克拉玛依833699

目的:观察大黄牡丹汤加味对结直肠癌(CRC)湿热蕴结证术后患者肠道菌群及Th1/Th2型细胞因子的影响。方法:选取96例CRC湿热蕴结证患者,按随机数字表法分为观察组和对照组各48例。2组均行腹腔镜CRC手术,对照组术后给予常规化疗治疗,观察组... 详细信息

目的:观察大黄牡丹汤加味对结直肠癌(CRC)湿热蕴结证术后患者肠道菌群及Th1/Th2型细胞因子的影响。方法:选取96例CRC湿热蕴结证患者,按随机数字表法分为观察组和对照组各48例。2组均行腹腔镜CRC手术,对照组术后给予常规化疗治疗,观察组在对照组基础上给予大黄牡丹汤加味治疗。14 d为1个化疗周期,2组均治疗2个化疗周期。比较2组肠道菌群指标、免疫功能指标、Th1/Th2型细胞因子水平及不良反应发生率。结果:治疗后,2组粪肠球菌、双歧杆菌、乳酸杆菌数量均较治疗前降低(P<0.05),观察组粪肠球菌、双歧杆菌、乳酸杆菌数量均高于对照组(P<0.05)。2组大肠杆菌数量均较治疗前升高(P<0.05),观察组大肠杆菌数量低于对照组(P<0.05)。2组CD3^(+)、CD4^(+)水平及CD4^(+)/CD8^(+)值均较治疗前降低(P<0.05),观察组CD3^(+)、CD4^(+)水平及CD4^(+)/CD8^(+)值均高于对照组(P<0.05)。2组血清白细胞介素(IL)-2、干扰素(INF)-γ水平均较治疗前升高(P<0.05),观察组血清IL-2、INF-γ水平均高于对照组(P<0.05)。2组血清IL-10、IL-6水平均较治疗前降低(P<0.05),观察组血清IL-10、IL-6水平均低于对照组(P<0.05)。观察组不良反应发生率10.42%,低于对照组27.08%(P<0.05)。结论:CRC湿热蕴结证术后应用大黄牡丹汤加味治疗,能改善患者肠道菌群分布,促进机体免疫功能恢复,调节Th1/Th2型细胞因子水平,减少不良反应发生。

关键词：结直肠癌腹腔镜术后湿热蕴结证大黄牡丹汤肠道菌群免疫功能 Th1细胞 Th2细胞

Development and technology status of energy storage in depleted gas reservoirs

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International Journal of Coal Science & Technology 2024年第2期11卷 198-221页

作者： jifang Wan Yangqing Sun yuxian He Wendong ji jingcui Li Liangliang jiang Maria Jose Jurado China Energy Digital Technology Group Co. Ltd.Beijing 100044China School of Mechanical Engineering Yangtze UniversityJingzhou 434023China Department of Chemical and Petroleum Engineering The University of CalgaryCalgaryAlbertaCanada Geosciences Barcelona CSIC Spanish National Research Council08028 BarcelonaSpain

Utilizing energy storage in depleted oil and gas reservoirs can improve productivity while reducing power costs and is one of the best ways to achieve synergistic development of"Carbon Peak–Carbon Neutral"and"Underground Resource Utiliza-tion".Starting from the development of Compressed Air Energy Storage(CAES)technology,the site selection of CAES in depleted gas and oil reservoirs,the evolution mechanism of reservoir dynamic sealing,and the high-flow CAES and injection technology are *** focuses on analyzing the characteristics,key equipment,reservoir construction,application scenarios and cost analysis of CAES projects,and sorting out the technical key points and existing *** devel-opment trend of CAES technology is proposed,and the future development path is scrutinized to provide reference for the research of CAES projects in depleted oil and gas reservoirs.

关键词： Depleted gas reservoirs Technology and development Siting analysis Safety evaluation Compressed air energy storage

Reproductive tissue-specific translatome of a rice thermo-sensitive genic male sterile line

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Journal of Genetics and Genomics 2022年第7期49卷 624-635页

作者： Wei Liu jing Sun ji Li Chunyan Liu Fuyan Si Bin Yan Zhen Wang Xianwei Song Yuanzhu Yang yuxian Zhu Xiaofeng Cao College of Life Sciences Wuhan UniversityWuhanHubei 430072China State Key Laboratory of Plant Genomics and National Center for Plant Gene Research Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing 100101China Department of Rice Breeding Hunan Yahua Seed Scientific Research InstituteChangshaHunan 410119China Institute for Advanced Studies Wuhan UniversityWuhanHubei 430072China

Translational regulation,especially tissue-or cell type-specific gene regulation,plays essential roles in plant growth and ***-sensitive genic male sterile(TGMS)lines have been widely used for hybrid breeding in rice(Oryza sativa).However,little is known about translational regulation during reproductive stage in TGMS ***,we use translating ribosome affinity purification(TRAP)combined with RNA sequencing to investigate the reproductive tissue-specific translatome of TGMS rice expressing FLAG-tagged ribosomal protein L18(RPL18)from the germline-specific promoter MEIOSIS ARRESTED AT LEPTOTENE1(MEL1).Differentially expressed genes at the transcriptional and translational levels are enriched in pollen and anther-related formation and development *** contain a number of genes reported to be involved in tapetum programmed cell death(PCD)and lipid metabolism during pollen development and anther dehiscence in rice,including several encoding transcription factors and key enzymes,as well as several long non-coding RNAs(lnc RNAs)that potentially affect tapetum and pollenrelated genes in male *** study represents the comprehensive reproductive tissue-specific characterization of the translatome in TGMS *** results contribute to our understanding of the molecular basis of sterility in TGMS rice and will facilitate further genetic manipulation of TGMS rice in two-line breeding systems.

关键词： TGMS rice Translatome MEL1 Reproductive tissue Translating ribosome affinity purification(TRAP) Fertility alternation

Activity-Dependent Phosphorylation of CDKL5 at Serine 407 Regulates Synaptogenesis and Plasticity

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Neuroscience Bulletin 2023年第9期39卷 1454-1458页

作者： Mengying jiang Qiwu Xu Can Yang Dan Li ji-Wei Liu yuxian Zhang Yong-Chuan Zhu Zhi-Qi Xiong Institute of Neuroscience State Key Laboratory of NeuroscienceCAS Center for Excellence in Brain Science and Intelligence TechnologyChinese Academy of SciencesShanghai200031China University of Chinese Academy of Sciences Beijing100049China Shanghai Mental Health Center Shanghai Jiao Tong University School of MedicineShanghai200030China Shanghai Center for Brain Science and Brain-Inspired Intelligence Technology Shanghai201210China School of Life Science and Technology ShanghaiTech UniversityShanghai201210China

Dear Editor,The X-linked gene cyclin-dependent kinase-like 5(CDKL5)encodes a serine/threonine kinase that is associated with CDKL5-deficiency disorder(CDD),a severe developmental and epileptic encephalopathy characterized by early-onset seizures,gross developmental delay,and motor disabilities[1].The expression of CDKL5 is highly enriched in the brain and is significantly induced during postnatal development[2].

关键词： seizures enriched CDK

Micro powder injection molding of boron carbide components with SiC-Al_(2)O_(3)-Y_(2)O_(3)sintering additives

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Chinese Journal of Aeronautics 2022年第5期35卷 429-440页

作者： Changrui WANG Zhiyou LI Wei TIAN yuxian LI Lina TANG Qilong PANG Minghe CHEN National Key Laboratory of Science and Technology on Helicopter Transmission Nanjing University of Aeronautics and AstronauticsNanjing 210016China ji’nan Technician College Jinan 250000China Shanghai Aerospace Equipments Manufacturer Co.Ltd. Shanghai 200245China College of Mechanical and Electrical Engineering Nanjing Forestry UniversityNanjing 210037China

Sintering additives and micro-powder injection molding offer an effective method to densify boron carbide(B_(4)C)and make B_(4)C components with complex *** adjusting the proportion of three kinds of powders(SiC,Al_(2)O_(3)and Y_(2)O_(3)),four kinds of sintering additives were *** feedstock uniformity,debinding behavior,phase composition and microstructure of micro injection molded B_(4)C components with different sintering additives were *** results showed that the defects such as lattice distortion and vacancy were introduced into ball milling,which increase the surface energy and benefit subsequent sintering *** feedstock had good uniformity and rheology that met the requirements of micro powder injection *** debinding,B_(4)C components had enough strength and showed certain sintering *** addition of sintering additives was beneficial to densification and sintering temperature *** addition of sintering additives formed a second phase in the B_(4)C crystal and at the grain boundary of B_(4)C crystal,which changed the fracture mode from transgranular fracture to mixed fracture mechanism with transgranular fracture.

关键词： Composite materials Fracture Injection molding Microstructure Phase composition

Microstructures of metallic film and diamond growth from Fe-Ni-C system

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Chinese Science Bulletin 2002年第15期47卷 1258-1262页

作者： XU Bin LI Musen YIN Longwei CUI jianjun LIU yuxian GONG jianhong College of Materials Science and Engineering Shandong UniversityJi’nan 250061China Department of Materials Science and Engineering Shandong Institute of Architecture and Engineering

The microstructures of metallic film surrounding diamond have been systemically studied using the transmission electron microscopy (TEM) and the atom force microscopy (AFM). The film can be divided into three layers (inner layer near diamond, external layer near graphite and middle layer). The graphite cannot be directly transformed into diamond in the film at HTHP: there exists a parallelrelationship between (111) of γ-(Fe,Ni) and (110) of Fe3C in the inner layer; the sawtooth-like step morphology found by AFM on the film is similar to that of corresponding diamond surface. A new model for diamond growth at HPHT is proposed from the parallel relationship and sawtooth-like step morphology. It is believed that Fe3C may be a transitional phase in the course of diamond growth, γ-(Fe,Ni) in the inner layer can absorb carbon atom groups with lamella structure from Fe3C, and then the carbon groups stack on growing diamond.

关键词： synthetic diamond high temperature and high pressure metallic film TEM AFM.

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纳米金属材料宏观弹性模量的数值模拟研究

机械强度 2007年第1期29卷 16-19页

作者：邸玉贤计欣华李林安秦玉文陈金龙天津大学机械工程学院力学系天津300072

将分子动力学模拟方法与连续体的有限元模拟技术相结合,进行“复合有限元”方法的探索与研究。首先,将纳米金属材料看作由晶粒、晶界、三叉晶界组成的复合材料,基体是具有不规则原子结构的界面相,夹杂是具有理想晶格的晶粒相,用有限元... 详细信息

将分子动力学模拟方法与连续体的有限元模拟技术相结合,进行“复合有限元”方法的探索与研究。首先,将纳米金属材料看作由晶粒、晶界、三叉晶界组成的复合材料,基体是具有不规则原子结构的界面相,夹杂是具有理想晶格的晶粒相,用有限元源程序自动生成系统fepg软件模拟材料的宏观弹性模量,并进一步调整晶粒尺寸,研究晶粒尺寸对材料宏观弹性模量的影响。研究结果表明,随着晶粒尺寸的减小,晶界、孔洞等所占的体积比增大,材料的弹性模量也随之下降。

关键词：纳米金属材料分子动力学有限元数值模拟弹性模量

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从历史、文学到影像:虞姬形象的多媒介重构

电影评介 2020年第7期 49-52页

作者：郭玉贤广西师范大学漓江学院

虞姬作为一个历史人物,初载于史籍时便带上了浓厚的文学色彩:追随霸王项羽、自刎于垓下。因此,其传统形象本身就承载了英雄末路与儿女情长、时代剧变与个人悲剧、生产亦或毁灭等常见文学主题的张力。在近代,其形象又被赋予男权与女性主... 详细信息

虞姬作为一个历史人物,初载于史籍时便带上了浓厚的文学色彩:追随霸王项羽、自刎于垓下。因此,其传统形象本身就承载了英雄末路与儿女情长、时代剧变与个人悲剧、生产亦或毁灭等常见文学主题的张力。在近代,其形象又被赋予男权与女性主义的反思等维度。而这些来自历史和文学的形象,最终在现代视听媒介中不断被刻写与重构,形成了今天历史与现实、真实与虚构相交织的虞姬形象。

关键词：文学主题虞姬文学色彩个人悲剧女性主义真实与虚构视听媒介儿女情长