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Chinese Journal of Polymer Science 2024年第12期42卷 2002-2010,I0011页

作者： xiang shi Center for Advanced Material Diagnostic Technology Shenzhen Technology UniversityShenzhen518118China Laboratoire de Physique des Solides CNRSUniversitéParis-SudUniversitéParis-SaclayOrsay91400France

An improved X-ray apparatus that combines tensile testing and X-ray diffraction has been designed and constructed to conduct timeresolved experiments during uniaxial *** utilizing mortise-like clamping jaws and dogbone-shaped specimens,this setup allows for the simultaneous recording of high-quality mechanical responses and 2D diffraction patterns due to the minimization of experimental errors from sample slippage or premature ***,the local extension ratio can be accurately determined based on thickness variation,and the Hermans'orientation function was demonstrated to be a reliable method with high accuracy to calculate the segmental orientation parameter〈P_(2)〉in elastomeric samples under high degree of *** summary,this innovative tensile-WAXD instrument has proven to be a promising and powerful technique for investigating the“stress-deformation-segmental orientation”relationship in elastomers with high extensibilities.

关键词： X-ray apparatus Elongation calculation Segmental orientation In situ measurement

About the Energy of the Universe

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Chinese Physics Letters 1996年第6期13卷 409-411页

作者： FENG shi-xiang DUAN Yi-shi Institute of Nuclear Research Chinese Academy of SciencesShanghai 201800 Institute of Theoretical Physics Lanzhou UniversityLanzhou 730000

We use the general covariant conservation law of energy-momentum,which is general covariant and therefore preferable to the non-covariant conservation laws,to analyse the energy of the universe and obtained vanishing ... 详细信息

关键词： energy vanishing discussions

Alternating current electroluminescent fibers for textile displays

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National Science Review 2023年第1期10卷 14-16页

作者： Zhen Wang xiang shi Huisheng Peng State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular Scienceand Laboratory of Advanced Materials Fudan University

With the emerging 5G and Internet of Things,wearables are developing vigorously [1].Wearables are expected to be flexible,lightweight,breathable and comfortable to satisfy daily applications[2].Integrating electronic devices into textiles to form an electronic textile(e-textile) will simultaneously meet the above requirements and the need for daily clothes.E-textiles with functions of communicating,sensing and supplying power have been widely explored.

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A Novel MDFA-MKECA Method With Application to Industrial Batch Process Monitoring

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IEEE/CAA Journal of Automatica Sinica 2020年第5期7卷 1446-1454页

作者： Yinghua Yang xiang shi Xiaozhi Liu Hongru Li College of Information Science and Engineering Northeastern UniversityShenyang 110819China

For the complex batch process with characteristics of unequal batch data length,a novel data-driven batch process monitoring method is proposed based on mixed data features analysis and multi-way kernel entropy component analysis(MDFA-MKECA)in this *** the mechanistic knowledge,different mixed data features of each batch including statistical and thermodynamics entropy features,are extracted to finish data *** that,MKECA is applied to reduce data dimensionality and finally establish a monitoring *** proposed method is applied to a reheating furnace industry process,and the experimental results demonstrate that the MDFA-MKECA method can reduce the calculated amount and effectively provide on-line monitoring of the batch process.

关键词： MDFA MKECA process monitoring reheating furnace statistical features thermodynamics entropy feature

THE RADIATION AND DIFFRACTION OF WATER WAVES BY A BOTTOM-MOUNTED CIRCULAR CYLINDER IN A TWO-LAYER FLUID

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Journal of Hydrodynamics 2007年第1期19卷 1-8页

作者： YOU Yun-xiang shi Qiang MIAO Guo-ping School of Naval Architecture Ocean and Civil Engineering Shanghai Jiaotong University Shanghai 200030 China.

An analytical method was proposed to analyze the radiation and diffraction of water waves by a bottom-mounted circular cylinder in a two-layer fluid. Analytical expressions for added mass and damping coefficients, as well as the wave excitation forces of the circular cylinder were obtained by an eigenfunction expansion method. The hydrodynamic forces on the bottom-mounted circular cylinder in a two-layer fluid include not only the added mass and damping coefficients, but also the wave forces of the surface and internal-wave modes. This is different from the case of a homogenous fluid. Some examples were given, showing that density stratification can have a relative large effect on these hydrodynamic forces over a wide range of frequencies.

关键词： two-layer fluid bottom-mounted cylinder,surface-wave mode internal-wave mode hydrodynamic forces

A cortical bone milling force model based on orthogonal cutting distribution method

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Advances in Manufacturing 2020年第2期8卷 204-215页

作者： Qi-Sen Chen Li Dai Yu Liu Qiu-xiang shi School of Mechanical Engineering and Automation Northeastern UniversityShenyang 110819People's Republic of China

In orthopedic surgery,the bone milling force has attracted attention owing to its significant influence on bone cracks and the breaking of *** is necessary to build a milling force model to improve the process of bone *** paper proposes a cortical bone milling force model based on the orthogonal cutting distribution method(OCDM),explaining the effect of anisotropic bone materials on milling *** to the model,the bone milling force could be represented by the equivalent effect of a transient cutting force in a rotating period,and the transient milling force could be calculated by the transient milling force coefficients,cutting thickness,and cutting *** on the OCDM,the change in transient cutting force coefficients during slotting can be described by using a quadratic ***,the force model is updated for robotic bone milling,considering the low stiffness of the robot ***,an experimental platform for robotic bone milling is built to simulate the milling process in clinical operation,and the machining signal is employed to calculate the milling ***,according to the experimental result,the rationality of the force model is verified by the contrast between the measured and predicted *** milling force model can satisfy the accuracy requirement for predicting the milling force in the different processing directions,and it could promote the development of force control in orthopedic surgery.

关键词： Robotic milling force Cortical bone Cutting force coefficient Orthogonal cutting distribution

Modeling and analysis of ground target radiation cross section

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Chinese Science Bulletin 2008年第9期53卷 1444-1449页

作者： shi xiang LOU GuoWei LI XingGuo Shanghai Institute of Micro-system and Information Technology Chinese Academy of Sciences Shanghai 200050 China Research Institute of MMW and Light Wave Near-sensing Technology Nanjing University of Science and Technology Nanjing 210094 China

Based on the analysis of the passive millimeter wave (MMW) radiometer detection, the ground target radiation cross section is modeled as the new token for the target MMW radiant characteristics. Its ap- plication and actual testing are discussed and analyzed. The essence of passive MMW stealth is target radiation cross section reduction.

关键词：微波模型模拟辐射交叉断面辐射计

Cu掺杂及缺陷共存对ZnO光催化影响的理论研究

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原子与分子物理学报 2025年第2期42卷 24-32页

作者：张海峰赵晋忠伊思静卢士香山西农业大学基础部太谷030801 北京理工大学化学与化工学院北京100081

采用密度泛函理论研究了Cu掺杂及缺陷共存对ZnO光催化性能的影响.计算时考虑了富O和贫O两种掺杂条件.研究结果表明富O条件有利于Cu的掺杂,贫O条件则产生抑制作用.当Cu掺杂浓度较低时,不论在何种掺杂条件下,Cu的主要掺杂方式均为Cu_(Zn)... 详细信息

采用密度泛函理论研究了Cu掺杂及缺陷共存对ZnO光催化性能的影响.计算时考虑了富O和贫O两种掺杂条件.研究结果表明富O条件有利于Cu的掺杂,贫O条件则产生抑制作用.当Cu掺杂浓度较低时,不论在何种掺杂条件下,Cu的主要掺杂方式均为Cu_(Zn)型.当Cu掺杂浓度较高时,富O条件下以Cu_(Zn)-Cu_(Zn)型掺杂方式为主,贫O条件下Cu_(Zn)-Cu_(Zn)和Cu_(Zn)-Cui这两种掺杂方式都有可能出现.富O条件下Cu掺杂会促进V_(Zn)和O_(i)缺陷的产生,且引入的V_(Zn)和O_(i)缺陷趋向于距离Cu原子最近.Cu掺杂可有效降低ZnO的带隙宽度,且随着掺杂浓度的增加,相应模型的带隙宽度会继续降低.V_(Zn)、O_(i)和V_(O)缺陷共存使相应模型的带隙宽度有所增加.Cu掺杂及V_(Zn)、O_(i)、V_(O)缺陷共存使模型对可见光发生响应,扩展了模型对太阳光的吸收范围.对于Cu掺杂模型,富O条件下Cu_(Zn)-Cu_(Zn)是有利的光催化模型.对于缺陷共存模型,富O条件下Cu_(Zn)-Cu_(Zn)-V_(Zn)是有利的光催化模型,其次是Cu_(Zn)-V_(Zn)和Cu_(Zn)-O_(i),贫O条件下Cu_(Zn)-V_(O)是有利的光催化模型.

关键词： ZnO Cu掺杂缺陷共存密度泛函理论光催化

Isolation and Manipulation of Quantitative Trait Loci for Disease Resistance in Rice Using a Candidate Gene Approach

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Molecular Plant 2008年第5期1卷 786-793页

作者： Ke-Ming Hu De-Yun Qiu xiang-Ling Shen xiang-Hua Li shi-Ping Wang National Key Laboratory of Crop Genetic Improvement National Center of Plant Gene Research (Wuhan) Huazhong Agricultural University Wuhan 430070 China

Bacterial blight caused by Xanthomonas oryzae pv. oryzae and fungal blast caused by Magnaporthe grisea result in heavy production losses in rice, a main staple food for approximately 50% of the world＇s population. Application of host resistance to these pathogens is the most economical and environment-friendly approach to solve this problem. Quantitative trait loci （QTLs） controlling quantitative resistance are valuable sources for broad-spectrum and durable disease resistance. Although large numbers of QTLs for bacterial blight and blast resistance have been identified, these sources have not been used effectively in rice improvement because of the complex genetic control of quantitative resistance and because the genes underlying resistance QTLs are unknown. To isolate disease resistance QTLs, we established a candidate gene strategy that integrates linkage map, expression profile, and functional complementation analyses. This strategy has proven to be applicable for identifying the genes underlying minor resistance QTLs in rice-Xoo and rice-M, grisea systems and it may also help to shed light on disease resistance QTLs of other cereals. Our results also suggest that a single minor QTL can be used in rice improvement by modulating the expression of the gene underlying the QTL. Pyramiding two or three minor QTL genes, whose expression can be managed and that function in different defense signal transduction pathways, may allow the breeding of rice cultivars that are highly resistant to bacterial blight and blast.

关键词： bacterial blight blast Oryza sativa quantitative resistance QTL.

β-Cyclodextrin and its derivatives-enhanced solubility and biodegradation of 2-nitrobiphenyl

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Journal of Environmental Sciences 2006年第6期18卷 1157-1160页

作者： CAI Bang-cheng GAO shi-xiang LU Gen-fa State Key Laboratory of Pollution Control and Resource Reuse School of Environment Nanjing University Nanjing 210093 China

This paper investigated the effects of β-cyclodextrins （I3-CD） and its two derivatives, hydroxypropyl-β-cyclodextrin （HPCD） and carboxymethyl-β-cyclodextrin （CMCD）, on the solubility and biodegradation of 2-nitrophenyl by an A cinetbacter sp. Results showed that β-CD, HPCD and CMCD could not be utilized by A cinetbacter sp. as sole carbon source and none of the CDs had toxic effects on the growth of the bacteria in the experiments; all the CDs could enhance the apparent solubility and accelerate the biodegradation of 2-nitrobipheny. It showed that biodegradation-accelerating effects of CDs on 2-nitrobiphenyl were correlated with their solubility-enhancing effects. Among three CDs investigated, CMCD had the most obvious effects both on the apparent solubility and the biodegradation, followed by β-CD and HPCD.

关键词： β-CD HPCD CMCD 2-nitrophenyl biodegradation