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SALT-FINGERING OF POLLUTANT VERTICAL MIXING IN STATIC THERMAL-STRATIFIED WATER

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Journal of Hydrodynamics 2010年第3期22卷 430-437页

作者： CHEN Bo LUO Lin LI Jia BAI Xue LI Shao-bo State Key Laboratory of Hydraulics and Mountain River Engineering Sichuan University Chengdu 610065 China College of Architecture and Environment Sichuan University Chengdu 610065 China

Pollutant vertical mixing in stratified waters is a key factor that affects the vertical pollutant distribution in deep thermal-stratified reservoirs. This article presents an experimental study of the vertical mixing in thermal-stratified waters and an analysis of the retarded tracer jet diffusion in the thermocline layer. In the experiment, Reynolds number rapidly decreases from 104 to 10I. The stronger the stratification, the more seriously retarded the mixing will be. Some small tracer blobs may penetrate the thermocline layer into the hypolimnion layer even the main tracer cloud is retarded. According to its appearance, it can remain with salt-fingering, where the blobs are isolated away from the main cloud and mixed with the surround cold water in the hypolimnion layer. Therefore, the vertical distribution of the tracer under the thermocline layer would take larger values than expected. According to measurements, the isolated blob contents are accounted for about 5%-2.% of the main tracer cloud, and are decreased with the increase of the stratification intensity. Results also show that the stronger the stratification, the smaller finger width would be. The averaged width of the incipient fingers is proportional to -0.32.2.of the thermal Rayleigh number, Rat, in the turbulent jet fluid. power of the temperature gradient, AT/Az, or - 0.2.2. power

关键词： thermal-stratified water vertical mixing retard double diffusion salt-finger

The crystal change and "excess heat" produced by long time electrolysis of heavy water with titanium cathode

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原子与分子物理学报 2003年第1期20卷 69-74页

作者： SUN Yue, ZHANG Qing-fu, GOU Qing-quan (Institute of Atomic and Molecular Physics, sichuan university, chengdu 610065,{{2.) Institute of Atomic and Molecular Physics Sichuan University Chengdu 610065

According to the theory given in the paper , the long time electrolysis experiment with titanium cathode in heavy water (D 2.) were done for many times by using the open-loop multi-parameters electrolysis calorimetry system, which is established by us. The specialty is that the cathode is titanium rod and the anode is platinum wire. The early experiment result is still repeated in our recent experiment. The obvious "excess heat" phenomenon can take place only when the electrolysis last more than ten days and amount of "excess heat" increased with the electrolysis time. The "excess heat" can also be obtained from the "boiling to dry" experiment. In the recent experiment, we obtain the results that the amount of "excess heat" is about 3.6 times the input energy, the "excess heat" power is 76.5 W, and the "excess heat" power density is 12..7 W/cm 3. After the electrolysis, the crystal structure of the Ti cathode was measured with x-ray diffraction apparatus. We found that the crystal structure of Ti cathode was changed to face-centered cubic structure of TiD 2.from its hexagonal structure. This result is in agreement with the Gou’s theory mentioned in reference .

关键词：重水电解实验热力学物态变化晶体结构热量测定原子核物理聚变

Anomalous Fractional Diffusion Equation forTransport Phenomena

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Communications in Nonlinear Science and Numerical Simulation 1999年第2期4卷 99-104页

作者： Qiuhua ZENG Houqiang LI De LIU(Department of Physics, sichuan university, chengdu 610064,{{2.) Department of Physics Sichuan University ChengDu 610064 China

We derive the standard diffusion equation from the continuity equationand by discussing the defectiveness of earlier proposed equations, we get the generalizedfractional diffusion equation for anomalous diffusion.

关键词： fractal lattice probability density fractal anomalous diffusion

STRESS-STRAIN HYSTERESIS OF POLYCRYSTALLINE SMAs─Ⅰ:A MODEL

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Acta Metallurgica Sinica(English Letters) 1999年第3期12卷 205-210页

作者： Y. Huo Y. Chen X. Zu and M. Tu( Department of Metal Materials, sichuan university, chengdu 610065,{{2.)( Department of Metal Materials, sichuan university, chengdu 610065,{{2.)( Department of Metal Materials, sichuan university, chengdu 610065,{{2.

In this paper, a theoretical model was presented to simulate the stress-strain hysteresis and the inner hysteretic behaviors, which were observed for polycrystalline Ni-Ti and Cu-based shape memory alloys (SMAs) at various temperatures. It was assumed that the stress-strum hysteresis of the grains of a polycrystalline sample of SMAs was relatively simple and easy to be calculated. The texture of the sample was characterized by a distribution function, which could be obtained from the experiments. Thercfore,the model provided a means to simulate and, for the first time, to predict the stressstrain hysteresis at different loading temperatures for polycrystalline SMAs.

关键词： shape memory alloys (SMAs) hysteresis mathematical modeling of phase transition

STATISTICAL EVALUATION OF CRITICAL INCLUSION FACTOR FOR SECONDARY RECRYSTALLIZATON IN 3%Si STEEL Lecturer,Department of Materials Engineering,Southwestern Jiaotong university,chengdu 610031,{{2.

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Acta Metallurgica Sinica(English Letters) 1990年第5期3卷 327-331页

作者： LI Shuchen Southwestern Jiaotong university,chengdu,{{2.CHEN Mengzhe KE Jun university of Science and Technology Beijing,Beijing,{{2.

On the basis of statistical data of MnS in the conventional 3% Si steel sheeets after various annealing processes,the critical inclusion factor has been evaluated to be 2. mm^(-1).The inhi- bition of MnS to grain grow... 详细信息

关键词： 3%Si steel secondary recrystallization inclusion factor

Research of the Effect of the Shear Stress on Endothelial Cells

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生物医学工程学杂志 2005年第S1期22卷 65-66页

作者： Xu HOU Chang-Xiu WAN Hua HUANG(Dept. of Biomedical Engineering,sichuan university,{{2.,china)

Nonlinear Analysis on Vertical Distribution of Suspended Load

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Communications in Nonlinear Science and Numerical Simulation 1998年第2期3卷 19-23页

作者： Fuquan WANG, Houqiang LI and Jing DING (sichuan Union university,{{2.,610064,china) sichuan Union university Chengdu 610064 China

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ＩｎｔｒｏｄｕｃｔｉｏｎＴｈｅｓｔｕｄｉｅｓｏｎｖｅｒｔｉｃａｌｄｉｓｔｒｉｂｕｔｉｏｎｏｆｓｅｄｉｍｅｎｔｉｎｎａｔｕｒａｌｒｉｖｅｒｓｈａｖｅｉｍｐｏｒｔａｎｔｔｈｅｏｒｅｔｉｃａｌｍｅａｎｉｎｇｓａｎｄｅｎｇｉｎｅｒｉｎｇａｐｐｌｉｃａｔｉｏ...

关键词： turbulence fractal sediment vertical distribution

Control of the Rendition Wavelength Shifts of Color Lippmann Holograms Recordedin Single-layer panchromatic Silver-halide Emulsion

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Chinese Journal of Lasers 2000年第2期9卷 155-160页

作者： ZHU Jianhua, GUO Lurong, LI Zuoyou, LIU Zhenqing (Information Optics Institute, sichuan university, chengdu 610064,{{2. Institute of Southwest Find Physics, chengdu 610003,{{2. ) 四川大学四川成都中国工程物理研究院西南流体物理所四川成都

Russian PFG-03C panchromatic ultra-high resolution silver-halide emulsion is regarded as the most successful material for the fabrication of color reflection holograms. But the lack of established and reliable processing sequences prevents its practical applications in business and everyday life. Though much attention is drawn upon the processing of PFC-03C color reflection holograms, the color desaturation is still a problem. The article describes the new processing of color holograms recorded in PFC- 03C plates which is demonstrated experimentally to have the capacity of controlling the rendition wavelength shifts and improving the color desaturation effectively. The rendition spectra of Red-Green-Blue (R. G. B. ) single-line reflection holographic gratify, and the color reflection hologram as well, are given in this paper.

关键词： color holography reflection holograms rendition wavelength color desaturation

Antithrombogenic investigation and biological behavior of cultured human umbilical vein endothelial cells on Ti-O film

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Science china(Technological Sciences) 2006年第1期49卷 20-28页

作者： CHEN Junying1, WAN Guojiang1, LENG Yongxiang1, YANG Ping1, SUN Hong1, WANG Jin1, HUANG Nan1, CHEN Huaiqing2.& TANG Rong2.1. College of Materials Science and Engineering, Key Laboratory of Advanced Materials Processing of Chinese Education Ministry, Southwest Jiaotong {2., chengdu 610031,{2. 2. School of Basic Medical Sciences, West{2. Center of Medical Sciences, sichuan university, chengdu 610064,{2. 1. College of Materials Science and Engineering Key Laboratory of Advanced Materials Processing of Chinese Education Ministry Southwest Jiaotong University Chengdu 610031 China 2. School of Basic Medical Sciences West China Center of Medical Sciences Sichuan University Chengdu 610064 China

Our previous research results have shown that the Ti-O films with appropriate characteristics possess great potentials for biomaterials application. In this paper, using plasma immersion ion implantation and deposition (PIII-D), titanium oxide thin films are fabricated onto silicon wafer. The antithrombogenesis of films is evaluated in vitro through the platelet adhesion investigation. The biological behavior of human umbilical vein en-dothelial cells (HUVEC) on the film surface is investigated in vitro by endothelial cell (EC) culture. Our results reveal that the crystalline Ti-O films exhibit attractive blood compatibil-ity. The in vitro HUVEC-cultured investigation of Ti-O film surface has justified that the biological behavior of HUVECs on different structure surfaces is significantly different. The adherence, growth and proliferation of HUVECs to the crystalline Ti-O film surface are in order, by forming a perfect single layer, preserving the natural original shape and dis-playing the cobblestone road metal rank, and obviously superior to that on the amorphous Ti-O film surface. According to our study, the crystalline Ti-O film, with proper microstruc-ture, is helpful for seeding ECs and can be used as a functional surface for the adherence and growth of ECs.

关键词： plasma immersion ion implantation and deposition, Ti-O film, antithrombogenesis, endothelial cell.