检索结果-南通市图书馆

Modular Lie Superalgebras of H-type

在线全文

学校读者我要写书评

暂无评论

Acta Mathematicae Applicatae Sinica 2004年第4期 683-694页

作者： yong zheng {2. department of mathematics,harbin normal University,harbin 150080,P.R.china

In this article the Z-graded transitive modular Lie superalgebra -1 Li,whose repre-sentation of Lin Lis isomorphic to the natural representation of osp(L),is determined.

关键词： Modular Lie superalgebra Divided power algebra Exterior algebra Flag

The source of lithium in Lakkor Co Salt Lake on Qinghai-Tibet Plateau,china:evidence from hydrochemical characteristics and boron isotope

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Acta Geochimica 2024年第5期43卷 933-946页

作者： zheng Yan Li Bin Kai Li Mao-yong He Xue Qin {2. Jiang Di Zhou department of Geoscience and Technology Taiyuan University of TechnologyYingzexi StreetTaiyuan 030024Shanxi ProvinceChina State Key Laboratory of Loess and Quaternary Geology Institute of Earth EnvironmentChinese Academy of SciencesXi’an 710061China Qinghai Provincial Key Laboratory of Geology and Environment of Salt Lakes Qinghai Institute of Salt LakesChinese Academy of SciencesXining 810008QinghaiChina School of Earth Science and Resources Chang’an UniversityXi’an 710000ShaanxiChina Qinghai normal University Academy of Plateau Science and SustainabilityXining 810016China

The availability of lithium resources is of great significance for the development of modern technologies,as well as for civil and military *** Qinghai-Tibet Plateau is a region known for its abundance of lithium-rich salt ***,the specific origin of lithium in these lakes is still unknown,which hinders the advancement of the lithium resource business in this *** research this issue,this study involved the collection of 2. samples from Lakkor Co Salt Lake on Qinghai-Tibet Plateau,encompassing samples of surface brine,cold springs,fresh lakes,and recharge *** composition of anions and cations in these samples was ***,the analysis extensivelyutilizedthePiperthree-linediagram,Gibbs model,and ion proportion *** findings of this study indicate that as the moves from the recharge water system to salt lake,there is a transition in water type from strong carbonate to moderate carbonate and weak carbonate,as well as Na *** research based on a similar source of both lithium and boron,utilized ion correlation analysis and boron isotope study in the Lakkor Co area,and analyzed the source and transporting process of *** main origin of lithium in Lakkor Co is the dissolution of lithiumrich rocks,recharge water systems,and deep hydrothermal *** findings are highly significant in enhancing the foundational data of lithium-rich brine resources in the Qinghai-Tibet Plateau and are beneficial for assessing the future development of such deposits.

关键词： Lithium Hydrochemical Li-rich Salt lake Boron isotope

Refining the Factors Affecting N_(2.O Emissions from Upland Soils with and without Nitrogen Fertilizer Application at a Global Scale

在线全文

学校读者我要写书评

暂无评论

Advances in Atmospheric Sciences 2024年第9期41卷 1804-1820页

作者： wenqian JIANG Siqi LI yong LI Meihui WANG Bo WANG Ji {2. Jianlin SHEN Xunhua zheng State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China Key Laboratory for Agro-ecological Processes in Subtropical Regions Institute of Subtropical AgricultureChinese Academy of SciencesChangsha 410125China Changsha Research Station for Agricultural&Environmental Monitoring Chinese Academy of SciencesChangsha 410125China University of Chinese Academy of Sciences Beijing 100049China State Environmental Protection Key Laboratory of Formation and Prevention of the Urban Air Pollution Complex Shanghai Academy of Environment SciencesShanghai 200233China Institute of Carbon Neutrality Qilu ZhongkeJinan 251699China Hubei Province Key Laboratory for Geographical Process Analysis and Simulation Central China Normal UniversityWuhan 430079China department of Ecohydrology Leibniz Institute of Freshwater Ecology and Inland FisheriesBerlin 12587Germany Key laboratory of Environment Change and Resources Use in Beibu Gulf Ministry of EducationNanning Normal UniversityNanning 530001China Golden Mantis school of Architecture Soochow UniversitySuzhou 215123China

Nitrous oxide(N_(2.O)is a long-lived greenhouse gas that mainly originates from agricultural *** and more studies have explored the sources,influencing factors and effective mitigation measures of N_(2.O in recent ***,the hierarchy of factors influencing N_(2.O emissions from agricultural soils at the global scale remains *** this study,we carry out correlation and structural equation modeling analysis on a global N_(2.O emission dataset to explore the hierarchy of influencing factors affecting N_(2.O emissions from the nitrogen(N)and non-N fertilized upland farming systems,in terms of climatic factors,soil properties,and agricultural *** results show that the average N_(2.O emission intensity in the N fertilized soils(17.83 g N ha^(-1)d^(-1))was significantly greater than that in the non-N fertilized soils(5.34 g N ha^(−1) d^(−1))(p2.O emission in non-N and N fertilized upland soils,*** different climatic zones,without fertilizer,the primary influence factors on soil N_(2.O emissions are soil physical properties in subtropical monsoon zone,whereas climatic factors are key in the temperate *** fertilizer,the primary influence factors for subtropical monsoon and temperate continental zones are soil physical properties,while agricultural measures are the main factors in the temperate monsoon *** enhanced agricultural practices,such as reduced N fertilizer rate combined with the addition of nitrification and urease inhibitors can potentially mitigate N_(2.O emissions by more than 60%in upland farming systems.

关键词： N_(2.O emissions influencing factors nitrogen cycling upland farming systems

Probing the peripheral self-generated magnetic field distribution in laser-plasma magnetic reconnection with Martin-Puplett interferometer polarimeter

在线全文

学校读者我要写书评

暂无评论

Chinese Physics B 2024年第4期33卷 129-134页

作者：张雅芃姚嘉文刘正东马作霖仲佳勇 department of Astronomy Beijing Normal UniversityBeijing 100875China Institute for Frontiers in Astronomy and Astrophysics Beijing Normal UniversityBeijing 102206China

Magnetic reconnection of the self-generated magnetic fields in laser-plasma interaction is an important laboratory method for modeling high-energy density astronomical and astrophysical *** use the Martin-Puplett interferometer(MPI)polarimeter to probe the peripheral magnetic fields generated in the common magnetic reconnection configuration,two separated coplanar plane targets,in laser-target *** introduce a new method that can obtain polarization information from the interference pattern instead of the sinusoidal function fitting of the intensity.A bidirectional magnetic field is observed from the side view,which is consistent with the magneto-hydro-dynamical(MHD)simulation results of self-generated magnetic field *** find that the cancellation of reverse magnetic fields after averaging and integration along the observing direction could reduce the magnetic field strength by one to two orders of *** indicates that imaging resolution can significantly affect the accuracy of measured magnetic field strength.

关键词： laser-plasma experiment polarimeter self-generated magnetic field magnetic reconnection

Viscosity properties and strong liquid behavior of Pr_(60)Ni_(2.)Al_(15) bulk metallic glass-forming liquids

在线全文

学校读者我要写书评

暂无评论

Science china(Physics,Mechanics & Astronomy) 2008年第3期51卷 307-314页

作者： WANG Dan,zhang Di,WANG ShuYing,NING QianYan,zheng CaiPing,YAN Yuan,{2. Jia & SUN MinHua department of Physics,harbin normal University,harbin 15002.,china 1. department of Physics Harbin Normal University Harbin 150025 China

Pr60Ni2.Al15 bulk metallic glass in a cuboid form with dimensions of 2.mm×2.mm×55 mm by copper mold casting method was cast. The dynamic viscosity near the glass transition region for Pr60Ni2.Al15 was measured by three-point beam bending methods. The fragility parameter m and activation energy for viscous flow of the liquid sample were calculated to be:m=31.66,E=10689.17 K,respectively. It was shown that the supercooled liquid of Pr60Ni2.Al15 alloy behaved much closer to strong glasses. The variation of active energy with temperature in supercooled liquid was analyzed. It was found that Kivelson’s super-Arrhenius equation is not suitable for description of the activation energy in a supercooled region of Bulk metallic glass,and there is a direct proportion between activation energy crystal-lization and activation energy of viscous flow.

关键词： bulk metallic glass viscosity fragility activation energy for viscous flow activation energy of crystallization

ASF1A-dependent P300-mediated histone H3 lysine 18 lactylation promotes atherosclerosis by regulating EndMT

在线全文

学校读者我要写书评

暂无评论

Acta Pharmaceutica Sinica B 2024年第7期14卷 3027-3048页

作者： Mengdie Dong Yunjia zhang Minghong Chen yongkang Tan Jiao Min Xian He Fuhao {2. Jiaming Gu Hong Jiang Longbin zheng Jiajing Chen Quanwen Yin Xuesong Li Xiang Chen yongfeng Shao yong Ji Hongshan Chen department of Cardiovascular Surgery the First Affiliated Hospital of Nanjing Medical Universityand Key Laboratory of Cardiovascular and Cerebrovascular MedicineSchool of PharmacyNational Vaccine Innovation PlatformNanjing Medical UniversityNanjing 211166China Key Laboratory of Cardiovascular and Cerebrovascular Medicine School of PharmacyNanjing Medical UniversityNanjing 211166China department of Clinical Medicine Nanjing Medical University TIANYUAN Honors SchoolNanjing Medical UniversityNanjing 211166China department of Anesthesiology Sir Run Run HospitalNanjing Medical UniversityNanjing 211166China department of Cardiovascular Surgery the First Affiliated Hospital of Nanjing Medical UniversityNanjing 211166China Key Laboratory of Cardiovascular and Cerebrovascular Medicine Key Laboratory of Targeted Intervention of Cardiovascular DiseaseCollaborative Innovation Center for Cardiovascular Disease Translational MedicineState Key Laboratory of Reproductive MedicineSchool of Pharmacythe Affiliated Suzhou Hospital of Nanjing Medical UniversityGusu SchoolNanjing Medical UniversityNanjing 211166China National Key Laboratory of Frigid Zone Cardiovascular Diseases(NKLFZCD) Department of Pharmacology(State-Province Key Laboratories of Biomedicine-Pharmaceutics of China)College of PharmacyKey Laboratory of Cardiovascular Medicine Research and Key Laboratory of Myocardial IschemiaChinese Ministry of EducationNHC Key Laboratory of Cell Transplantationthe Central Laboratory of the First Affiliated HospitalHarbin Medical UniversityHarbin 150081China Key Laboratory of Targeted Intervention of Cardiovascular Disease Collaborative Innovation Center for Cardiovascular Disease Translational MedicineNanjing Medical UniversityNanjing 211166China department of Cardiology Huai’an First People’s Hospital Affiliated with Nanjing Medical UniversityHuai’an 223399China

Endothelial-to-mesenchymal transition(EndMT)is a key driver of *** glycolysis is increased in the endothelium of atheroprone areas,accompanied by elevated lactate *** lactylation,mediated by lactate,can regulate gene expression and participate in disease ***,whether histone lactylation is involved in atherosclerosis remains ***,we report that lipid peroxidation could lead to EndMT-induced atherosclerosis by increasing lactatedependent histone H3 lysine 18 lactylation(H3K18la)in vitro and in vivo,as well as in atherosclerotic patients’***,the histone chaperone ASF1A was first identified as a cofactor of P300,which precisely regulated the enrichment of H3K18la at the promoter of SNAI1,thereby activating SNAI1 transcription and promoting *** found that deletion of ASF1A inhibited EndMT and improved endothelial *** analysis based on Apoe^(KO)Asf1a^(ECKO) mice in the atherosclerosis model confirmed the involvement of H3K18la in atherosclerosis and found that endotheliumspecific ASF1A deficiency inhibited EndMT and alleviated atherosclerosis *** of glycolysis by pharmacologic inhibition and advanced PROTAC attenuated H3K18la,SNAI1 transcription,and EndMT-induced *** study illustrates precise crosstalk between metabolism and epigenetics via H3K18la by the P300/ASF1A molecular complex during EndMT-induced atherogenesis,which provides emerging therapies for atherosclerosis.

关键词： Histone lactylation Atherosclerosis Endothelial-tomesenchymal transition ASF1A SNAI1 Endothelial dysfunction Lactate Epigenetic

Synthesis of vertically aligned carbon nanotube arrays on silicon substrates

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science china(Technological Sciences) 2004年第5期47卷 616-624页

作者： zheng Ruiting1, CHENG Guoan1, PENG Yibin1, 2. ZHAO yong1, 3, {2. Huaping1 & LIANG Changlin1 1. Key Laboratory of Radiation Beam Technology and Materials Modification of Ministry of Education, department of Materials Science and Engineering, Beijing normal University, Beijing 100875, china 2. School of Science, Civil Aviation University of china, Tianjin 300300, china 3. department of Physics, Nanchang University, Nanchang 330047, china Correspondence should be addressed to zheng Ruiting 1. Key Laboratory of Radiation Beam Technology and Materials Modification of Ministry of Education Department of Materials Science and Engineering Beijing Normal University 100875 Beijing China 2. School of Science Civil Aviation University of China 300300 Tianjin China 3. department of Physics Nanchang University 330047 Nanchang China

The growth of well-aligned carbon nanotube (CNT) arrays using a heat chemical vapor deposition system on silicon substrates is reported. The growth properties of CNT arrays are studied as a function of synthesis conditions. It is found that 750°C and 10 nm Fe film are suitable conditions for the growth of well-aligned CNT arrays. CNT arrays with a uniform diameter, thick tube wall and firm cohesion to the Si substrate can be grown for C2.2.concentration of 2.%. Based on the experiment, the processes of improving the alignment of CNT arrays and cohesion between CNT arrays and Si substrates are discussed.

关键词： carbon nanotubes, vertically aligned, silicon substrate, chemical vapor deposition.

Novel Nanosized Adsorbing Composite Cathode Materials for the Next Generational Lithium Battery

在线全文

学校读者我要写书评

暂无评论

Journal of Wuhan University of Technology(Materials Science) 2007年第2期22卷 234-239页

作者：张勇 School of Material and Chemical Engineering Zhengzhou University of Light Industry

A novel carbon-sulfur nano-composite material was synthesized by heating sublimed sulfur and high surface area activated carbon （HSAAC） under certain conditions. The physical and chemical per- formances of the novel carbon-sulfur nano-composite were characterized by scanning electron microscopy （SEM）, Brunauer-Emmett-Teller （BET） and X-ray diffraction （XRD）. The electrochemical performances of nano-composite were characterized by charge-discharge characteristic, cyclic voltammetry and electrochemical impendence spectroscopy （EIS）. The experimental results indicate that the electrochemical capability of nano- composite material was superior to that of traditional S-containing composite material. The cathode made by carbon-sulfur nano-composite material shows a good cycle ability and a high specific charge-discharge capacity. The HSAAC shows a vital role in adsorbing sublimed sulfur and the polysulfides within the cathode and is an excellent electric conductor for a sulfur cathode and prevents the shuttle behavior of the lithium-sulfur battery.

关键词： high surface area activated carbon sublimed sulfur lithium battery composite material: adsorbing composite

Predictive Ability of Hypertriglyceridemic Waist,Hypertriglyceridemic Waist-to-Height Ratio,and Waist-to-Hip Ratio for Cardiometabolic Risk Factors Clustering Screening among Chinese Children and Adolescents

在线全文

学校读者我要写书评

暂无评论

Biomedical and Environmental Sciences 2024年第3期37卷 233-241页

作者： XIAO Tian Li YUAN Shu Qian GAO Jing Yu Julien SBaker YANG Yi de WANG Xi Jie zheng Chan Juan DONG Yan Hui ZOU Zhi {2. Key Laboratory of Molecular Epidemiology of Hunan Province School of MedicineHunan Normal UniversityChangsha 410081HunanChina The Institute of Interdisciplinary Studies Hunan Normal UniversityChangsha 410013HunanChina Chenzhou First People's Hospital Chenzhou 423000HunanChina Centre for Health and Exercise Science Research Hong Kong Baptist UniversityKowloon TongHong Kong 999077China department of Sport Physical Education and HealthHong Kong Baptist UniversityKowloon TongHong Kong 999077China Vanke School of Public Health Tsinghua UniversityBeijing 100084China Institute of Child and Adolescent Health School of Public HealthPeking University Health Science CenterBeijing 100191China

Objective Hypertriglyceridemic waist(HW),hypertriglyceridemic waist-to-height ratio(HWHtR),and waist-to-hip ratio(WHR)have been shown to be indicators of cardiometabolic risk ***,it is not clear which indicator is more suitable for children and *** aimed to investigate the relationship between HW,HWHtR,WHR,and cardiovascular risk factors clustering to determine the best screening tools for cardiometabolic risk in children and *** This was a national cross-sectional *** and biochemical variables were assessed in approximately 70,000 participants aged 6–18 years from seven provinces in ***,physical activity,dietary intake,and family history of chronic diseases were obtained through ***,χ2.and logistic regression analysis was *** A significant sex difference was observed for HWHtR and WHR,but not for HW *** risk of cardiometabolic health risk factor clustering with HW phenotype or the HWHtR phenotype was significantly higher than that with the non-HW or non-HWHtR phenotypes among children and adolescents(HW:OR=12.2.,95%CI:9.54-15.67;HWHtR:OR=9.70,95%CI:6.93-13.58).Compared with the HW and HWHtR phenotypes,the association between risk of cardiometabolic health risk factors(CHRF)clustering and high WHR was much weaker and not significant(WHR:OR=1.14,95%CI:0.97-1.34).Conclusion Compared with HWHtR and WHR,the HW phenotype is a more convenient indicator with higher applicability to screen children and adolescents for cardiovascular risk factors.

关键词： Hypertriglyceridemic waist Waist-to-hip ratio Children and adolescents china Hypertriglyceridemic waist-to-height ratio Cardiovascular risk factors