检索结果-南通市图书馆

Ferroelectric BaTiO_(3) /Pr_(2)O_(3) heterojunction harvesting roomtemperature cold–hot alternation energy for efficiently pyrocatalytic dye decomposition

在线全文

学校读者我要写书评

暂无评论

Journal of Advanced Ceramics 2024年第1期13卷 44-52页

作者： Zheng Wu Taosheng Xu Luohong Zhang Tingting Liu zhansheng Wu Gangqiang Zhu Yanmin jia School of Environmental and Chemical Engineering Xi’an Key Laboratory of Textile Chemical Engineering AuxiliariesXi’an Polytechnic UniversityXi’an 710048China School of Physics and Information Technology Shaanxi Normal UniversityXi’an 710062China

The strong pyrocatalytic dye decomposition of the BaTiO_(3)/Pr_(2)O_(3) heterojunction catalyst under cold–hot alternation conditions has been demonstrated in this *** pure BaTiO_(3) nanofibers,~54%rhodamine B(RhB)dye is decomposed under the cold–hot alternation of 29–57℃.With the loading content of Pr_(2)O_(3) increases from 0 to 4 wt%,the pyrocatalytic decomposition ratio of RhB solution increases first and then decreases,eventually achieving a maximum of 91%at 3 wt%.The enhanced pyrocatalytic performance after loading Pr_(2)O_(3) can be attributed to an internal electric field of the heterojunction,which effectively separates positive and negative *** strongly pyrocatalytic performance of BaTiO_(3)/Pr_(2)O_(3) makes it hopeful for applications in the dye wastewater treatment through harvesting the environmental cold–hot temperature alternation thermal energy in future.

关键词： pyroelectric materials BaTiO_(3) pyrocatalysis BaTiO_(3)/Pr_(2)O_(3)heterojunction dye decomposition

Expert Consensus on the Prevention and Treatment of Hemorrhagic Fever with Renal Syndrome

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Infectious Diseases & Immunity 2022年第4期2卷 224-232页

作者： Hong jiang Changxing Huang Xuefan Bai Fuchun Zhang Bingliang Lin Shiwen Wang zhansheng jia Jingjun Wang Jing Liu Shuangsuo Dang Yingren Zhao Xiaoguang Dou Fuqiang Cui Wenhong Zhang jianqi Lian Guiqiang Wang Zhiliang Gao Infectious Disease Branch of the Chinese Preventive Medicine Association Infectious Diseases Branch of the Chinese Medical Association

Hemorrhagic fever with renal syndrome(HFRS)is an acute zoonosis with a global *** is one of the countries with a high incidence of HFRS,which has long endangered the lives and health of the Chinese *** Infectious Disease Branch of the Chinese Preventive Medicine Association and the Infectious Diseases Branch of the Chinese Medical Association organized national multidisciplinary experts,based on domestic and international research results combined with experts’practical experiences,to reach this consensus after thorough *** consensus contains 17 recommendations aimed at prevention and identification of important clinical issues to further standardize the prevention,diagnosis,and treatment of HFRS.

关键词： Hemorrhagic fever with renal syndrome Expert consensus Prevention Treatment

Extending Structures for Gel'fand-Dorfman Bialgebras

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Acta Mathematica Sinica,English Series 2024年第2期40卷 619-638页

作者： jia jia WEN Yan Yong HONG School of Mathematics Hangzhou Normal UniversityHangzhou 311121P.R.China

Gel'fand-Dorfman bialgebra,which is both a Lie algebra and a Novikov algebra with some compatibility condition,appeared in the study of Hamiltonian pairs in completely integrable *** also emerged in the description of a class special Lie conformal algebras called quadratic Lie conformal *** this paper,we investigate the extending structures problem for Gel'fand-Dorfman bialgebras,which is equivalent to some extending structures problem of quadratic Lie conformal ***,given a Gel'fand-Dorfman bialgebra(A,o,[.,.]),this problem is how to describe and classify all Gel'fand-Dorfman bialgebra structures on a vector space E(A⊂E)such that(A,o,[.,.])is a subalgebra of E up to an isomorphism whose restriction on A is the identity *** by the theories of extending structures for Lie algebras and Novikov algebras,we construct an object gH2(V,A)to answer the extending structures problem by introducing the notion of a unified product for Gel'fand-Dorfman bialgebras,where V is a complement of A in *** particular,we investigate the special case when dim(V)=1 in detail.

关键词： Gel'fand-Dorfman bialgebra Lie conformal algebra Extending structures problem Novikovalgebra

Geometric Constraints for Global Regularity of 3D Shear Thickening Fluids

在线全文

学校读者我要写书评

暂无评论

Acta Mathematicae Applicatae Sinica 2024年第1期40卷 205-210页

作者： jia-qi Yang Research&Development Institute of Northwestern Polytechnical University in Shenzhen Shenzhen518063China Key Laboratory for Mechanics in Fluid Solid Coupling Systems Institute of MechanicsChinese Academy of SciencesBeijing100190China

We consider the relation between the direction of the vorticity and the global regularity of 3D shear thickening *** is showed that a weak solution to the non-Newtonian incompressible fluid in the whole space is stron... 详细信息

关键词： direction of the vorticity non-Newtonian fluid global regularity

Two-dimensional ballistic transistors for advanced-node integrated circuits

在线全文

学校读者我要写书评

暂无评论

National Science Review 2024年第3期11卷 9-10页

作者： jia Li Xidong Duan Hunan Provincial Key Laboratory of Two-Dimensional Materials State Key Laboratory for Chemo/Biosensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University

As the feature size of metal-oxide-semiconductor-field-effect-transistors(MOSFETs) in integrated circuits(ICs)is reduced to sub-10-nm, the traditional channel materials are plagued by enhanced scattering and short-cha... 详细信息

关键词： CONTACT

Numerical analysis of the correlation between fluid dynamic modes and hydrodynamic noise in flows around a three-dimensional circular cylinder

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Journal of Hydrodynamics 2024年第1期36卷 119-129页

作者： jia-jia Qin Ming-xin Zou Yuan Zhuang De-cheng Wan Computational Marine Hydrodynamics Lab(CMHL) School of Naval ArchitectureOcean and Civil EngineeringShanghai Jiao Tong UniversityShanghai200240China Wuhan Second Ship Design and Research Institute Wuhan430205China

The flow around a circular cylinder for Re=1000 is characterized by flow separation and Karman vortex *** typical flow features can be captured to study the correlation between fluid fields and sound *** this paper,the three-dimensional circular cylinder is taken as the research object,and the probes of surface fluctuating pressure and far field sound pressure are arranged every 10°.The directional diagram and the coherence of fluctuating pressure and sound pressure are *** relationship between the flow mode and hydrodynamic noise is studied by using dynamic mode decomposition(DMD).The characteristics of the dipole and quadrupole sound source term of a long span cylinder are *** results show that at the angles between 30°–120°and 190°–350°,the fluctuating pressure contributes more to the generation of dipole *** quadrupole sound source shows three-dimensional effects,which is more obvious in a cylinder with large spanwise length.

关键词： Pressure coherence dynamic mode decomposition flow-sound correlation circular cylinder

Facile synthesis of transition metal complexes with five coplanar metal-carbon σ-bonds

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

National Science Review 2024年第4期11卷 11-12页

作者： Guocheng jia Department of Chemistry Hong Kong University of Science and Technology

Carbon is one of the most important elements in chemistry, forming a vast number of organic compounds. It can also form a variety of organometallic compounds with a metal–carbon bond. Metal alkyl, carbene and carbyne complexes are classical examples of organometallic compounds. A particularly interesting class of organometallic compounds are all-carbon metallacycles formed by combination of a metal and a hydrocarbon chain serving as a chelating agent with only carbon atoms as the donor atoms. Many interesting monocyclic metallacycles made of a chelating bidentate hydrocarbon chain are known, for example, metallacyclobutadienes, metallacyclopentadienes and metallabenzenes[1].

关键词：

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

矿用喷浆机械手的设计与应用

山东煤炭科技 2022年第11期40卷 137-139页

作者：贾湛胜山西王家岭煤业有限公司山西忻州036600

王家岭煤业以往煤巷及半煤岩巷道两帮及顶板支护作业喷浆施工采用人工抱喷头作业模式,针对存在喷砼质量稳定性差、劳动强度高、施工效率低、安全性较低等问题,设计支护喷浆作业用矿用喷浆机械手,在18103胶带运输巷进行应用。喷浆作业工... 详细信息

王家岭煤业以往煤巷及半煤岩巷道两帮及顶板支护作业喷浆施工采用人工抱喷头作业模式,针对存在喷砼质量稳定性差、劳动强度高、施工效率低、安全性较低等问题,设计支护喷浆作业用矿用喷浆机械手,在18103胶带运输巷进行应用。喷浆作业工效提高至3.13 m^(3)/h,施工效率提高1.39倍,综合工效提升67%,每年可增加经济效益763万元。

关键词：支护喷浆机械手设计

Structural engineered living materials

在线全文

学校读者我要写书评

暂无评论

Nano Research 2024年第2期17卷 715-733页

作者： Yang Geng Zian jia Ling Li 635 Prices Fork Road Department of Mechanical EngineeringVirginia Polytechnic Institute and State UniversityBlacksburg VA24061USA

Biological structural materials not only exhibit remarkable mechanical properties but also often embody dynamic characteristics such as environmental responsiveness,autonomy,and self-healing,which are difficult to achieve in conventional engineering *** merging materials science,synthetic biology,and other disciplines,engineered living materials(ELMs)provide a promising solution to combine living organisms with abiotic components,thus facilitating the construction of functional“living”*** natural materials,ELMs possess vitality and hold immense application potential in areas such as medicine,electronics,and construction,captivating increasing research attention *** an emerging branch of ELMs,structural ELMs aim to mimic living biological structural materials by achieving desired mechanical performance while maintaining important“living”*** we summarize the recent progress and provide our perspectives for this emerging research *** first summarize the superiority of structural ELMs by reviewing biological structural materials and biomimetic material design ***,we provide a systematic discussion on the definition and classifications of structural ELMs,their mechanical performance,and physiological ***,we summarize some critical challenges faced by structural ELMs and highlight directions of future *** hope this review article can provide a timely summary of the state of the art and relevant perspectives for future development of structural ELMs.

关键词： structural materials engineered living materials(ELMs) structural ELMs composites mechanical properties