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Urbanization of jilin Province and Its Spatial Pattern

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Chinese Geographical Science 2006年第4期16卷 359-364页

作者： WANG Bo GUO Qinghai Dou Sen College oflnformalion and Technology Jilin Agricultural University Changchun 130118 China College of Resources and Environmental Sciences Jilin Agricultural University Changchun 130118 China

Urbanization is a crucial criterion of assessing a nation’s or a particular region’s level of *** has been accelerated all over the world in the 21th *** main purpose of this research is to provide a strategy of spatial pattern of urbanization for rural areas in jilin Province based on the reality of economic development in jilin and the im-balance of natural resources *** strategy divides the nine central cities of jilin Province into three economic *** outer economic circle,open circle,includes Yanbian,Baishan,Tonghua and Baicheng,covering the eastern and western parts of jilin *** middle one includes jilin,Liaoyuan,Siping and *** inner one,centring as Changchun,includes Gongzhuling,Yitong,Nong’an,Jiutai and *** needs to centre as Changchun which has the good foundation of economic development and more economic increase,then by economic effect extending out gradually,other areas develop *** construct jilin as a green ecological province,cultivation in the outer circle should be con-trolled,with the main aim to recover *** population should be moved to other places by developing labor *** economy and ecology,to decrease the load of the land can reduce the loss of the resources and benefit the balance of ***,the whole province’s economy will be developed sustainably.

关键词： urbanization economic circles spatial pattern jilin Province

EXPERIMENTAL AND NUMERICAL INVESTIGATION OF TURBULENT AIR-CUSHION-CASCADE

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Journal of Hydrodynamics 2002年第2期14卷 41-44页

作者： Guo, Ting-Ting Li, Shao-Hua Wang, Guo-Hui Xu, Zhong Xi'an Jiaotong univ. Xi'an 710049 China Northeast China Inst. of Electron. Jilin 132012 China

Experimental and numerical studies of air-cushion-cascade were conducted and described. The SIMPLE algorithm combined with the normal k-Ε turbulence model was adopted to simulate the air-phase flow. The experiment was carried out by an IFA 300 anemometer. The flow field was measured for different ratios of main-stream velocity to jet velocity, different numbers of gaps and a couple of gap widths. The contour of the air-cushion was obtained, and the numerical calculations gave a closed-form result. The results show that the air-cushion thickness would increase with the increase of the jet velocity, gap width and gap number mainly determined by the jet in the former half cascade. The possibility to achieve anti-erosion by the turbulent jet was examined and confirmed.

关键词： Anemometers Computer simulation Computer software Erosion Flow of fluids Turbulent flow

WHEELBASE PREVIEW OPTIMAL CONTROL FOR ACTIVE VEHICLE SUSPENSIONS

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Chinese Journal of Mechanical Engineering 1998年第2期11卷 43-50页

作者： Yu, Fan Crolla, D.A. jilin univ.of Technology China

An algorithm in which the optimal control law takes the advantage of the correlation between front and rear inputs, i.e., wheelbase preview information, for an active vehicle suspension design is described. Based on s... 详细信息

关键词： Active suspension Preview control

FUZZY STABILITY ANALYSIS OF MODE COUPLING CHATTER ON CUTTING PROCESS

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Chinese Journal of Mechanical Engineering 1998年第2期11卷 30-35,56页

作者： Kong, Fansen Yu, Junyi jilin univ.of Technology China

The influence of fuzzy uncertainty factors is considered on the analysis of chatter occurring during machine tool cutting process. Using fuzzy mathematics analysis methods, a detailed discussion over fuzzy stability analysis problems is presented related to the mode coupling chatter with respect to intrinsic structure fuzzy factors, and the possibility distribution of the fuzzy stability cutting range and the confidence level expressions of the fuzzy stability cutting width are given.

关键词： Fuzzy uncertainty Mode coupling chatter Fuzzy stability cutting range Possibility distribution Confidence level

GLASS TRANSITION AND THERMODYNAMIC FUNCTION OF ZrAlNiCuCo ALLOY

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中国有色金属学会会刊：英文版 1999年第2期9卷 51-55页

作者： Zhao, Ming Li, Jianjun Jiang, Qing jilin univ.of Technology Changchun China

１ＩＮＴＲＯＤＵＣＴＩＯＮＴｈｅｇｌａｓｔｒａｎｓｉｔｉｏｎａｓａｐｏｌｙｍｏｒｐｈｏｕｓｏｎｅ（ｒｅｑｕｉｒｉｎｇｅｑｕａｌｉｔｙｏｆｃｏｍｐｏｓｉｔｉｏｎｉｎａｌｐｈａｓｅｓ）ｎｅｅｄｓａｖｅｒｙｓｍａｌＥ（ａｃ... 详细信息

１ＩＮＴＲＯＤＵＣＴＩＯＮＴｈｅｇｌａｓｔｒａｎｓｉｔｉｏｎａｓａｐｏｌｙｍｏｒｐｈｏｕｓｏｎｅ（ｒｅｑｕｉｒｉｎｇｅｑｕａｌｉｔｙｏｆｃｏｍｐｏｓｉｔｉｏｎｉｎａｌｐｈａｓｅｓ）ｎｅｅｄｓａｖｅｒｙｓｍａｌＥ（ａｃｔｉｖａｔｉｏｎｅｎｅｒｇｙ）ｗｉ...

关键词： ZrAlNiCuCo alloyglass transitionthermodynamic functionKauzmann temperature

Calorimetric Measurements of CuAlNi Alloys

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Journal of Materials Science & Technology 1995年第3期11卷 176-180页

作者： Qing JIANG(Dept. Metal Material Engineering, jilin univ.rsity of Technology, Changchun, 130025, China) jilin univ.of Technology Changchun China

The martensitic transformation of CuAlNi single crystals is measured by DSC (differential scanning calorimeter). An isothermal single interface DO3-->2H transformation arises when the specimen is quenched at a slow rate, but 2H-->DO3 transformation always proceeds with multiple interfaces due to the existence of stored elastic energy inside martensite. The elastic energy is essentially stored on the martensitic interfaces and results in A(s)-->M(f), which brings a separate spectrum of heat flow on the measured curve. The size of stored elastic energy affects the hysteresis.

关键词： DO AQ Calorimetric Measurements of CuAlNi Alloys

SPECIFIC HEAT MEASUREMENTS OF ZrAlNiCuCo ALLOY

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中国有色金属学会会刊：英文版 1999年第1期9卷 50-53页

作者： Zhao, Ming Li, Jianjun Jiang, Qing jilin univ.of Technology Changchun China

１ＩＮＴＲＯＤＵＣＴＩＯＮＴｏｅｘａｍｉｎｅｔｈｅｔｈｅｒｍｏｄｙｎａｍｉｃｓａｎｄｄｙｎａｍｉｃｓｏｆｇｌａｓｓｔｒａｎｓｉｔｉｏｎｏｆａｍｏｒｐｈｏｕｓａｌｏｙ，ｉｔｉｓｎｅｃｅｓｓａｒｙｔｏｍｅａｓｕｒｅｓｐ... 详细信息

１ＩＮＴＲＯＤＵＣＴＩＯＮＴｏｅｘａｍｉｎｅｔｈｅｔｈｅｒｍｏｄｙｎａｍｉｃｓａｎｄｄｙｎａｍｉｃｓｏｆｇｌａｓｓｔｒａｎｓｉｔｉｏｎｏｆａｍｏｒｐｈｏｕｓａｌｏｙ，ｉｔｉｓｎｅｃｅｓｓａｒｙｔｏｍｅａｓｕｒｅｓｐｅｃｉｆｉｃｈｅａｔｏｆｔｈｅａｌ...

关键词： ZrAlNiCuCo alloy specific heat amorphous alloy

Physiological Effects of Rare Earths on Black Currant Plants

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Journal of Rare Earths 1995年第3期13卷 217-220页

作者：刘洪章李亚东郝瑞 jilin Agricultural univ Changchun China

Various concentrations of ''Nongle'' rare earth were applied on 'Xinbin'' cultivar of black currant plants. The results indicated that leaf chlorophyll contents, photosynthetic rate, stomatal conductance, photon flux density and leaf transpiration rate of black currant plants were influenced significantly by rare earth applied on leaves. Foliage application of 300 to 800 mg/L rare earth two times in the growing season was better than those applied once.

关键词： BLACK CURRANT RARE EARTHS PHYSIOLOGICAL EFFECT

FINE STRUCTURE ANALYSIS OF DEFORMED STEEL 1Cr18Ni9

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Acta Metallurgica Sinica(English Letters) 1992年第4期5卷 266-268页

作者： TENG Feng’en WANG Yuming XU Yue jilin univ.rsity,Changchun,China jilin univ Changchun China

X-ray diffraction profiles of various deformed steel 1Cr18Ni9 through stepped scanning were *** profile analysis,some structure parameters such as effective domain size D_(eff), dislocation density in domain,distribution parameterand bulk stored energy densiy (E/V),etc.,were *** results were compared with those of TEM *** true domain sizes D_e are comparable,but the minimum and characteristics of width of stack- ing fault are *** may be resulted from the large fluctuation in width of stacking fault.

关键词： austenitic stainless steel fine structure X-ray analysis