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| 1 | A BRIEF REVIEW AND PROSPECT OF EXPERIMENTAL SOLID MECHANICS IN CHINA显示文摘In this review,a critical look at the research progress of experimental solid mechanics in China for the past years is presented.Issues are discussed of the discovery and development of new fundamental methods and techniques versus performance benchmarking for many of their applications.Included herein are photoelasticity and various forms of modern photomechanics,acoustical techniques,image processing and videometrics,radial and spectrum techniques,and experimental mechanics on micro/nano scale.It is also noticed that both the ever developed instrumentation and specialized synthetical techniques have played important roles in advancing experimental mechanics in scientific researches and industrial applications.Finally,an attempt is made to look into the future of experimental solid mechanics with personal opinions offered on what the future trends will be for the researches in the field. | Xide Li Huimin Xie Yilan Kang Xiaoping Wu | 2010 | Acta Mechanica Solida Sinica2010,23,6: | 17 |
| 2 | Influencing factors of water resources in the source region of the Yellow River显示文摘Taking the source region of the Yellow River as a study area and based on the data from Madoi Meteorological Station and Huangheyan Hydrological Station covering the period 1955–2005, this paper analyses the changing trends of surface water resources, climate and frozen ground and reveals their causes. Results show that there exist frequent fluctuations from high to low water flow in the 51-year period. In general, the discharge has shown a de- clining trend in the 51 years especially since the 1990s. The annual distribution shows one peak which, year on year is getting smaller. (1) Precipitation has a significant and sustained influence on discharge. (2) A sharp rise of temperature resulted in the increase of evaporation and the decrease of discharge, which has a greater effect than on ice-snow melting. (3) Frozen ground tends to be degraded markedly. There is a significant positive correlation be- tween the permafrost thickness and the discharge. (4) Evaporation rates are significantly increasing, leading to the decrease of discharge. 70% of the discharge reduction resulted from climate change, and the remaining 30% may have been caused by human activities. | CHANG Guogang LI Lin ZHU Xide WANG Zhenyu XIAO Jianshe LI Fengxia | 2007 | Journal of Geographical Sciences2007,17,2: | 7 |
| 3 | Investigation of loading and force sensing properties of a probe-type microforce sensor with force-distance curves显示文摘In this paper,the force-distance curves have been employed to investigate the force sensing properties of the probe-type microforce sensors.In the preliminary studies,two kinds of probe-type microforce sensors have been used to load the objects with dry and wetted surfaces.One is a developed piezoresistive cantilever force sensor with sensitivity of 35 μN/V and the other an atomic force microscope(AFM) cantilever beam probe with sensitivity of 10.4 nN/V.The force outputs corresponding to the regimes of approaching,indenting,and loading are obtained,and the properties of the stability in the approaching regime of the sensors,local mechanical behavior of the tested objects in the indenting regime,and the force sensing of the global samples are analyzed.Experimental results of this analysis are also presented. | SUN Chen SU DongChuan LI XiDe | 2011 | Science China(Technological Sciences)2011,54,6: | 3 |
| 4 | STRENGTH ANALYSIS OF CLAMPING IN MICRO/NANO SCALE EXPERIMENTS显示文摘Two kinds of clamping in micro/nano scale experiments are investigated in this paper,one based on electron-beam-induced deposition,and the other on the van der Waals interaction.The clamping strength and mechanism are analyzed both theoretically and experimentally.The influence of relative humidity on the micro/nano clamping and the method of electrostatic clamping are discussed.The clamping strength and performance of different clamping methods are compared considering the size and material of the clamped objects,and the application environments. | Liang Liu Dujuan Zeng Xianlong Wei Qing Chen Xide Li | 2009 | Acta Mechanica Solida Sinica2009,22,6: | 2 |
| 5 | Tensile properties of individual multicellular Bacillus subtilis fibers显示文摘Microfibers formed by Bacillus subtilis(B. subtilis) have attracted interest because of their potential for use as biodegradable fibers. In this work, an efficient method based on the micro-liquid bridge method(LBM) is proposed to investigate the mechanical properties and the deformation evolution in individual fibers. For the first time, tensile testing of fibers of this type containing several cells is conducted in a scanning electron microscope(SEM) chamber and the in situ deformation evolution of the fibers and the septa is observed. Experimental results show that these fibers are almost broken at the positions of the septa at low humidity, but also show that their fracture morphologies are different. At high humidity, local necking deformation occurs at the septum position. To explore the deformation mechanism of an individual bacterial fiber with a diameter of several hundred nanometers under different humidity conditions, we use the finite element method(FEM) to analyze the tensile deformation behavior of these fibers when their septa are at various separation levels. The numerical results indicate that weak interactions among the septa lead to the dispersion of both the fibrous tensile strength and the modulus. These results may be helpful in understanding the deformation mechanism, thus leading to further improvements in the mechanical performance of these fibers. | Xuan Ye Tao Wang Zhuo Zhuang XiDe Li | 2019 | Science China(Physics,Mechanics & Astronomy)2019,62,9: | 2 |
| 6 | Continual deformation with scanning phase method and time sequence phase method in temporal speckle pattern interferometry 显示文摘 | Li Xide Tao Gang Yang Yizhang | 2001 | Optics & Laser Technology2001,33,1: | 1 |
| 7 | Synchrotron radiation tomography for reconstruction of layer structures and internal damage of composite material显示文摘 | Li Xide Hu Xiaofang | 1999 | Chinese Journal of Lasers B1999,8,6: | 1 |
| 8 | Synchrotron Radiation Tomography for Reconstruction of Layer Structures and Internal Defects of Composite Materials显示文摘 | LI Xide (Department of Engineering Mechanics Tsinghua University Beijing 100084 China)HU Xiaofang (Department of Modern Mechanics and Engineering University of Science and Technology of China Hefei 230026 China) HU Yiguan KAN Ya (National Sy | 1999 | Chinese Journal of Lasers1999,,06: | 1 |
| 9 | Digital manufacture of large-grade hydro turbine's blades显示文摘 | LAI Xide ZHANG Qinghua LI Qinggang | 2009 | Journal of Materials Processing Technology2009,209,11: | 1 |
| 10 | Microtensile tests of mechanical properties of nanoporous Au thin films显示文摘 | Re Xia Caixia Xu Wenwang Wu Xide Li Xi-Qiao Feng Yi Ding | 2009 | Journal of Materials Science2009,,17: | 1 |
| 11 | Deformation measurement with temporal speckle pattern interferometry显示文摘 | Li Xide Yang Yizhang Tao Gang | 2001 | Optical Engineering2001,40,2: | 1 |
| 12 | Continual Deformation Measurement with Scanning Phase Method and Time Sequence Phase Method in Temporal Speckle Pattern Interferometry 显示文摘 | Gang Tao Yizhang Yang | 2001 | Optics & Laser technology2001,33,1: | 1 |
| 13 | Synchrotron radiation tomography for reconstruction of layer structures and internaldamage of composite material显示文摘 | Xide Li Xiaofang Hu | 1999 | Chinese Journal of Lasers B1999,8,6: | 1 |
| 14 | Synchrotron radiation tomography for reconstruction of layer structures and internal damage of composite material 显示文摘 | Li Xide Hu Xiaofang | 1999 | Chinese Journal of Lasers B1999,8,6: | 1 |
| 15 | High-precision large deflection measurements of thin films using time sequence speckle pattern interferometry显示文摘 | Li Xide Soh Ai-Koh Deng Bin Guo Xianghua | 2002 | Measurement Science and Technology2002,13,8: | 1 |
| 16 | Surface effects on the mechanical properties of nanoporous materials 显示文摘 | Xia Re Li Xide Qin Qinghua | 2011 | Nanotechnology2011,22,26: | 1 |
| 17 | A novel technique of microforce sensing and loading显示文摘 | Li Xide Su Dongchuan Zhang Zhao | | 0,,1: | 1 |
| 18 | A sequence pulse counting method for shape measurement in dual-beam speckle interferometry显示文摘A temporal approach to fast shape measurement is presented.In principle,the rotational object method is used in combination with the sequence pulse counting method (SPCM) to determine the height of the object through calculating the related phase.Two specimens are tested to demonstrate the validity of the approach.One is an object covered by a Chinese character (tea) with a height variety of 0.3 mm,and the other is an object surface with a relatively large fluctuation of 3.5 mm.The experimental results are compared with mechanical measurements.An axis shifting method is also proposed to determine shapes with relatively large fluctuations.Effects of such parameters on the height measurement as incident angle of the dual light beams,tilting angle of the object,and azimuth angle of the measured point are discussed as well. | LIU Liang LI XiDe | 2011 | Science China(Physics,Mechanics & Astronomy)2011,54,4: | 0 |
| 19 | Si_(1-x)Ge_(x)/Si Single-Mode Rib Waveguides with 0.5 dB/cm by Molecular Beam Epitaxy显示文摘Si_(1-x)Ge_(x)/Si single-mode rib waveguides with 0.5dB/cm losses have been fabricated,in which the SiGe layers are grown by molecular beam epitaxy.The single-mode waveguide dimensions determined experimentally are consistent with the single-mode theory of SiGe waveguides. | GAO Yong LIU Enke LI Guozheng LIU Xiding ZHANG Xiangjiu LU Xuekun WANG Xun | 1994 | Chinese Physics Letters1994,11,12: | 0 |
| 20 | The effect of different staining agents on the staining intensity of esterase isozyme zymogram of rice显示文摘Almost all previous reports on plant esterase (EST) isoenzyme analysis appeared to have accepted that the relative staining strength (RSS) of electrophoretical bands represented the relative activities and contents of the corresponding isoenzymes. Nevertheless, we found in studying that the RSS changed with different staining agents. | LIU Dongxu LI Zixian GUO Xuexing CAO Xide Chengdu Inst of Biology,Academia Sinica,Chengdu 610015,China | 1994 | Chinese Rice Research Newsletter1994,2,2: | 0 |