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The ecological adaptability of cloned sheep to free-grazing in the Tengger Desert of Inner Mongolia,China

Frontiers of Agricultural Science and Engineering 2014年第3期1卷 191-200页

作者： Xinxin LI Huijuan WANG Guanghua SU Zhuying WEI Chunling BAI wuni-menghe Yanhui HOU Changqing YU Shorgan BOU Guangpeng LI The Key Laboratory of National Education Ministry for Mammalian Reproductive Biology and Biotechnology Key Laboratory of Herbivore Reproductive Biotechnology and Breeding of Ministry of AgricultureInner Mongolia UniversityHohhot 010070China The Inner Mongolia Rangeland Ecology Institute Alashan 750306China

Since the birth of the first cloned sheep,somatic cell nuclear transfer technology has been successfully used to clone a variety of *** livestock have no apparent health risks,and the quality and safety of the cloned animal products are similar to non-cloned *** social behavior and environmental adaptability of postnatal cloned animals,especially when used for grassland farm production purposes,is *** the present study,the cloned Dorper sheep equipped with GPS location devices were free-grazed in a harsh natural environment similar to conditions commonly experienced by Mongolian *** main findings of this research were as follows.(1)Under free-grazing conditions,the cloned sheep showed excellent climatic and ecological *** extreme temperature conditions ranging from–30 to 40°C,the cloned sheep maintained acceptable body condition and behaved as other sheep.(2)The cloned sheep quickly adapted from a herd feeding strategy to the harsh environment and quickly exhibited a grazing regimen as other free-grazing sheep.(3)The cloned sheep exhibited free-grazing patterns and social behavior as other sheep.(4)The cloned sheep in the harsh environment thrived and produced healthy ***,the cloned Dorper sheep exhibited excellent ecological adaptation,which is an important consideration for breeding meat sheep by *** Dorper sheep readily adapted to the free-grazing conditions on the Mongolian plateau grassland,which attests to their ability to withstand harsh environmental conditions.

关键词： somatic cell nuclear transfer free-grazing synchronization Dorper sheep cloned animal ecology

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阿拉善双峰驼驼峰脂的脂肪酸组成分析

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中国油脂 2013年第12期38卷 88-90页

作者：乌云双全李秀丽吴晓燕乌尼孟和于玥内蒙古农业大学食品科学与工程学院呼和浩特010018 内蒙古阿拉善盟阿左旗改良站内蒙古巴音浩特750300 二连浩特出入境检验检疫局内蒙古二连浩特011100

采用气相色谱-质谱法测定了阿拉善双峰驼驼峰脂中的脂肪酸组成及含量。结果表明:阿拉善双峰驼驼峰中的粗脂肪含量为90.78%;阿拉善双峰驼驼峰脂中测定出14种脂肪酸,其中油酸含量(31.03%)最高,硬脂酸(26.48%)和棕榈酸含量(21.85%)较高;阿... 详细信息

采用气相色谱-质谱法测定了阿拉善双峰驼驼峰脂中的脂肪酸组成及含量。结果表明:阿拉善双峰驼驼峰中的粗脂肪含量为90.78%;阿拉善双峰驼驼峰脂中测定出14种脂肪酸,其中油酸含量(31.03%)最高,硬脂酸(26.48%)和棕榈酸含量(21.85%)较高;阿拉善双峰驼驼峰脂中饱和脂肪酸和不饱和脂肪酸含量分别为56.39%和37.29%。

关键词：阿拉善双峰驼驼峰脂脂肪酸组成 GC-MS

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Yarn spun from carbon nanotube forests:Production,structure,properties and applications

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Particuology 2013年第4期11卷 378-393页

作者： menghe Miao CSIRO Materials Science and Engineering

The discovery of drawable carbon nanotube forests opened up the possibility of constructing a wide range of pure carbon nanotube macrostructures and sparked interests in developing applications from these structures, especially pure carbon nanotube yarns. This review examines the various facets of the draw- able carbon nanotube forests, synthesis and drawability, and their resulting yarns, structure, production, properties and applications. The structure, formation and properties of carbon nanotube yarns are com- pared with those of conventional textile yarns in order to obtain a better understanding of the science, structural mechanics and processing technology involved in carbon nanotube yarns.

关键词： Carbon nanotubeSynthesisDrawingSpinningYarnStructural mechanics

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Transition of electrical conductivity in carbon nanotube/silver particle composite buckypapers

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Particuology 2014年第6期12卷 15-21页

作者： Fenghua Su menghe Miao School of Mechanical and Automotive Engineering South China University of Technology CSIRO Materials Science and Engineering P.O.Box 21BelmontVictoria 3216Australia

The electrical conductivity of carbon nanotube buckypapers can be dramatically increased by incorporation of silver particles contained in a commercial silver *** methods,co-dispersion during the production of buckypaper and surface coating on a preformed buckypaper,were used to prepare composite *** two types of composite buckypapers exhibited very different electrical conductivity *** composite buckypapers prepared by the surface coating method showed a distinct step transition in electrical conductivity at 3 vol%silver content,leading to a 15-fold improvement at 6%silver *** composite buckypapers prepared by the co-dispersion method showed a gradual change in electrical conductivity with increasing silver particle content,resulting in a five-fold improvement at12%silver *** and sectional morphologies of the two types of composite buckypapers were examined and related to their electrical conductivity profiles.

关键词： Carbon nanotubes Buckypaper Electrical conductivity

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Rayleigh-Type Wave in A Rotated Piezoelectric Crystal Imperfectly Bonded on a Dielectric Substrate

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Computers, Materials & Continua 2019年第4期59卷 257-274页

作者： Guoquan Nie menghe Wang Department of Engineering Mechanics Shijiazhuang Tiedao UniversityShijiazhuang050043China

Propagation characteristics of Rayleigh-type wave in a piezoelectric layered system are theoretically *** piezoelectric layer is considered as a cubic crystal with finite thickness rotated about Y-axis and is imperfectly bonded onto a semi-infinite dielectric *** imperfect interface between the two constituents is assumed to be mechanically compliant and dielectrically weakly *** exact dispersion relations for electrically open or shorted boundary conditions are *** numerical results show that the phase velocity of Rayleigh-type wave is symmetric with respect to the cut orientation of 45°and can achieve the maximum propagation speed in this *** mechanical imperfection plays an important role in the dispersion relations,further the normal imperfection can produce a significant reduction of phase velocity comparing with the tangential *** with the mechanical imperfection the electrical imperfection makes a relatively small reduction of phase velocity of Rayleigh-type *** obtained results can provide some fundamentals for understanding of piezoelectric semiconductor and for design and application of piezoelectric surface acoustic wave devices.

关键词： Piezoelectric cubic crystal Rayleigh-type wave imperfect interface cut orientation dispersion relation

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Solvothermal Syntheses and Characterization of Three One-dimension Cadmium Selenidoarsenates [Ni(1,2-dap)3][As2CdSe4],[Zn(1,2-dap)3][As2CdSe4] and [Ni(en)3][As2CdSe4]

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Chemical Research in Chinese Universities 2019年第4期35卷 560-563页

作者： DU Cuixia CHEN Juan BAIYIN menghe College of Chemistry & Environmental Science Inner Mongolia Normal UniversityHohhot 010022P. R.China

Three new cadmium selenidoarsenates,[Ni(1,2-dap)3][As2CdSe4](1)(1,2-dap=l,2-diaminopropane),[Zn( 1,2-dap)3][As2CdSe4](2) and [Ni(en)3][As2CdSe4](3)(en=ethylenediamine), were synthesized under solvothermal conditions. And they are isostnictural and monoclinic crystalls. As seen from their structures, they exhibited one-dimensional(1D) chains composed of [As2CdSe4]^2- anions and [TM(amine)3]^2+(TM=Ni,Zn;amine=1,2-dap, en) cations. Their absorption edges are 2.32, 1.84 and 2.38 eV and they show the properties of the semiconductor. These compounds were also characterized by means of single-crystal X-ray ditlraction(XRD), powder X-ray diflraction (PXRD), solid-state optical absorption spectrometry, and so on.

关键词： Solvothennal synthesis Selenidoarsenate Cadmium

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High-performance flexible self-powered strain sensor based on carbon nanotube/ZnSe/CoSe_(2) nanocomposite film electrodes

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Nano Research 2022年第1期15卷 170-178页

作者： Qiufan Wang Jiaheng Liu Xuan Ran Daohong Zhang Guozhen Shen menghe Miao Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education&Hubei Key Laboratory of Catalysis and Materials Science Hubei R&D Center of Hyperbranched Polymers Synthesis and ApplicationsSchool of Chemistry and Materials ScienceSouth Central University for NationalitiesWuhan 430074China State Key Laboratory for Superlattices and Microstructures Institution of SemiconductorsChinese Academy of SciencesBeijing 100083China CSIRO Manufacturing 75 Pigdons RoadWaurn PondsVictoria 3216Australia

High-performance energy storage and sensing devices have been undergoing rapid development to meet the demand for portable and wearable electronic products,which require flexibility,extensibility,small volume and *** this study,we construct a lightweight and flexible self-powered sensing system by integrating a highly stretchable strain sensor with a high-performance asymmetric supercapacitor based on ZnSe/CoSe_(2)//ECNT(ECNT:electrochemically activated carbon nanotube film).The ZnSe/CoSe_(2) two-dimentional nanosheets on carbon nanotube(CNT)films are synthesized through a simple and efficient strategy derived from ZnCo-based metal-organic frameworks(MOFs).The density functional theory(DFT)simulations show the higher conductivity of the ZnSe/CoSe_(2)/CNT electrode than the CoSe_(2)/CNT *** to the synergistic properties of self-supported two-dimentional ZnSe/CoSe_(2) nanosheets with high specific surface area and the high pathway of one-dimention CNTs,the nanocomposite electrode provides efficient transmission and short paths for electron/ion *** asymmetric supercapacitor provides a stable output power supply to the sensors that can precisely respond to strain and pressure *** sensor can also be attached to a garment for measuring a variety of joint movements.

关键词： asymmetric supercapacitor sensors self-powered self-supported ZnSe/CoSe_(2)/carbon nanotube(CNT)nanosheets density functional theory

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Recent advances in fire-retardant rigid polyurethane foam

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Journal of Materials Science & Technology 2022年第17期112卷 315-328页

作者： menghe Zhu Zhewen Ma Lei Liu Jianzhong Zhang Siqi Huo Pingan Song Materials Engineering Zhejiang A&F UniversityHangzhou311300China School of Materials Science and Engineering Tongji UniversityShanghai 201804China Laboratory of Polymer Materials and Engineering NingboTech UniversityNingbo 315100China Centre for Future Materials University of Southern QueenslandSpringfield 4300Australia

Driven by global environmental concerns,many efforts have been made to develop halogen-free flame retardants for rigid polyurethane foam(RPUF).These environmentally benign flame retardants are mainly divided into(i)reactive,(ii)additive,and(iii)coating *** last decade has witnessed great progress of these three strategies,which enhance the fire safety of RPUF and maintain even improve the thermal insulation *** comprehensive review focuses on the up-to-date design of the reactive,additive,and coating flame retardants,and their effects on flame retardancy and thermal conductivity of ***,the practical applications of the as-prepared flame-retardant RPUFs are ***,key challenges associated with these three kinds of flame retardants are discussed and future research opportunities are also proposed.

关键词： Rigid polyurethane foam Flame retardancy Thermal conductivity Halogen-free flame retardants

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Application of MoS_(2)in the space environment:a review

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Frontiers of Mechanical Engineering 2023年第3期18卷 47-77页

作者： menghe ZHOU Ruiting TONG Tao ZHANG Geng LIU Shaanxi Engineering Laboratory for Transmissions and Controls Northwestern Polytechnical UniversityXi'an 710072China CALT China Academy of Launch Vehicle TechnologyBejing 100076China

A considerable portion of space mechanism failures are related to space tribological *** welding in high vacuum;surface erosion and collision damage caused by various radiations,high temperature oxidation under atomic oxygen(AO)bombardment;and thermal stress caused by temperature alternation all alter the physical,chemical,and friction properties of *** particular,the space vibration caused by alternating temperatures and microgravity environments can alter the motion of the contact body,further affecting its friction *** the friction properties of contact surfaces in the space environment is an important way to extend the service life of *** lubricants can no longer meet the lubrication requirements of the space *** study describes the characteristics of the space environment and the applications of solid *** friction properties of MoS_(2),a solid lubricant widely used in space,are *** synergistic lubrication of MoS_(2)with surface textures or metals is *** in research on the friction properties of collision sliding contacts in the space environment are *** combination of MoS_(2)and soft metals with surface textures is introduced to reduce the effects of vibration environments on the friction properties of moving parts in space ***,the challenges and future research interests of MoS_(2)films in space tribology are presented.

关键词： MoS_(2) soft metal space environment surface texture synergistic effect vibration

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Synthesis and Characterizaion of a New Inorganic-organic Sulfate Compound——Crystal Structure of [Ni(H_2O)_6][H_2N(C_2H_4)_2NH_2](SO_4)_2

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Chemical Research in Chinese Universities 2004年第1期20卷 1-5页

作者： menghe XINGYan FUYun-long SHIZhan PANGWen-qin StateKeyLaboratoryofInorganicSynthesisandPrepa~ativeChemistry CollegeofChemistryJilinUniversityChangchun130023P.R.China

Ni(H_2O)_6][H_2N(C_2H_4)_2NH_2](SO_4)_2 is an inorganic-organic compound with a new open framework synthesized by hydrothermal method, and characterized by means of single-crystal diffraction and spectroscopic data. The compound crystallized in a monoclinic space group P2_1/n with a=1.29089(2) nm, b=1.06301(3) nm, c=1.33202(4) nm, β=114.0870(10)°, V=1.67127(8) nm 3, Z=4, and was solved by using the direct method and the least-squares refinement converged at R=0.0214[I>2σ(I)]. The structure consists of isolated Ni(H_2O)_6 octahedra and SO_4 tetrahedra, with both of them hydrogen-bonded to piperazine cations.

关键词： Inorganic-organic compound Crystal structure Nickel sulfate

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