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Plant Communications 2024年第8期5卷 92-95页

作者： Kai-Hua Jia Xiaoyan Zhang Lei-Lei li Tian-Le Shi Dan liu Yongyi Yang Yunzhe Cong runfang li Yanyan Pu Yongchao Gong Xue Chen Yu-Jun Si Rumei Tian Zhenya Qian Hanfeng Ding Nana li National Saline-Alkali Tolerant Crop Germplasm Resources Nursery(Dongying) Shandong International Joint Laboratory of Agricultural Germplasm Resources InnovationInstitute of Crop Germplasm ResourcesShandong Academy of Agricultural SciencesJinan 250100China College of Biological Sciences and Technology Beijing Forestry UniversityBeijing 100083China Shandong Provincial Center of Forest and Grass Germplasm Resources Jinan 250102China Weifang Academy of Agricultural Sciences Weifang 261017China Shandong Huaya Agricultural Technology Co. Ltd.Jining 272400China

Dear Editor,Soybean(Glycine max)is a critical crop worldwide,renowned as a major source of edible oil and *** was domesticated approximately 5000-9000 years ago in China,between latitudes 32°N and 40°N,from its wild progenitor,Glycine *** recent years,numerous genome assemblies for both cultivated and wild soybeans have been published,with cultivated soybean genomes even achieving telomere-to-telomere(T2T)completeness(Zhang et al.,2023a,2023b;Wang et al.,2023;Huang et al.,2024).

关键词： soybean insight evolution

VIBRATION CONTROL AND EXPERIMENT OF THREE-RING REDUCER

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Chinese Journal of Mechanical Engineering 1998年第4期11卷 72-78页

作者： Zhu, Caichao Qin, Datong li, runfang Chongqing Univ China

The three ring reducer is studied both in theory and experiment. In order to improve the dynamic characteristics and reduce the vibration and noise, based on the sensitivity analysis of design parameters of dynamic characteristics, the system geometry parameters are optimized, and the structure of reducer is developed according to the optimum result, then the specimens of reducer are designed and manufactured. The effect of the structure development has been verified by comparing the original and developed reducer through the vibration tests.

关键词： Three ring reducer Dynamic analysis Vibration control

EXPERIMENTAL STUDY ON SUPERFICIAL COAT OF GEARS OF NITRIDED 32Cr2MoV COATED WITH TiN FILM BY MULTI-ARC ION PLATING

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Chinese Journal of Mechanical Engineering 2007年第4期20卷 52-56页

作者： li Hui li runfang XU Hongbin ZHANG Jin State Key Laboratory of Mechanical Transmission Chongqing University Chongqing 400044 China Department of Materials Science and Engineering Chongqing Institute of Technology Chongqing 400050 China

After 32CrMoV is selected to manufacture nitrided gears coated with TiN by multi-arc ion plating, all of these uncoated gears and coated gears run in the gearbox under the same initial conditions so as to compare their difference concerning properties and microstructure. Experiment results indicate that tooth surface of the coated-TiN gears does not suffer surface abnormalities in meshed zone. Instead, the gears with nitrided case exhibit an abrasion mark on the meshed zone of tooth surface, which results in more weight loss of nitrided gears. The morphology of the surface suggests TiN film with more than 2 000 HV is so dense and smooth that coated-TiN gears have higher wear resistance compared with the uncoated gears. The microstructure of coated-TiN gears is finer, hardness is higher and its distribution of coated-TiN gears is more reliable than uncoated ones, which makes nitride layer combined with TiN film tightly. Consequently, the wear-resistance of gears has been dramatically promoted.

关键词： Gear Multi-arc ion plating TiN Wear-resistance

3D TRANSIENT COUPLED THERMOELASTIC-PLASTIC CONTACT SEAliNG ANALYSIS OF REACTOR PRESSURE VESSEL

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Chinese Journal of Mechanical Engineering 2005年第4期18卷 473-476页

作者： Du Xuesong li runfang lin Tengjiao State Key Laboratory of Mechanical Transmission Chongqing University Chongqing 400044 China

Sealing analysis of sealing system in reactor pressure vessels is relevant with multiple nonlinear coupled-field effects, so even large-scale commercial finite element software cannot finish the complicated analysis. A finite element method of 3D transient coupled thermo-elastic-plastic contact sealing analysis for reactor pressure vessels is presented, in which the surface nonlinearity, material nonlinearity, transient heat transfer nonlinearity and multiple coupled effect are taken into account and the sealing equation is coupling solved in iterative procedure. At the same time, a computational analysis program is developed, which is applied in the sealing analysis of experimental reactor pressure vessel, and the numerical results are in good coincidence with the experimental resuits. This program is also successful in analyzing the practical problem in engineering.

关键词： Pressure vessel Sealing analysis Finite element method

DYNAMIC SIMULATION OF MICROSTRUCTURE EVOLUTION DURING HOT FORGINGFOR ENGINE STIGMATA

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Chinese Journal of Mechanical Engineering 2000年第1期13卷 35-40页

作者： li runfang li Jun You lihua (State Key Lab. of Mechanical Transmission, Chongqing University) 重庆大学机械传动国家重点实验室重庆

Incorporated with constitutive relationship established by artificial need networks (ANN), a coupled thermoviscoplastic finite element procedure is developed for predicting the microstructure evolution in the hot forging process, considering the factors such as dynamic recrystallization, static recrystallization and grain growth etc. This software system is applied to predict the distributions of the grain size over the crosssection of stigmata, which is found to be in good agreement with the experimental results. The software can provide a fundament for optimizing technological parameters.

关键词： Finite element method Microstructure evolution

Experimental Insights on the Structural Patterns and Their Formation Mechanisms of the Xujiaweizi Fault Depression in the Songliao Basin

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Journal of Earth Science 2018年第2期29卷 369-375页

作者： Wei Long Zhongquan li Ying li Junliang Chen Fengyu Tan Zhiyi Zheng Jinmiao Hu runfang li State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Chengdu University of Technology Chengdu 610059 China Key Laboratory of Tectonic Controls on Mineralization and Hydrocarbon Accumulation of Ministry of Land and Resources Chengdu University Of Technology Chengdu 610059 China School of Geosciences King's Colleges University of Aberdeen Aberdeen AB24 3UE UK Exploration and Development Research Institute of Daqing Oilfild Company Ltd. Daqing 163712 China

The Xujiaweizi （XJWZ） fault depression is a primary area for deep-seated gas explo- ration in Daqing. Through seismic profile interpretation, the main sag-controlling fault and struc- tural characteristics in the XJWZ fault depression were analyzed based on folds and faults analysis. A three-dimensional geological model of the XJWZ fault depression was also set up to enable fur- ther discussion by means of structural physical modeling. According to our research, the basic structural framework of the XJWZ fault depression was the result of regional extension. Its forma- tion and evolution were mainly controlled by the Xuxi fault. The structural framework of S-N blocking was due to changes in the fracture attitude. The Xuzhong uplift and the depressions on both sides belong to a normal-fault-related fold and were formed by controlling of the ramp/flat normal fault in the same tectonic movement period.

关键词： structural physical modeling formation mechanism normal-fault-related fold Xujiaweizi fault depression.

FINITE　ELEMENT　SOLUTION　TO　COUPLED　THERMO－ELASTICCONTACT　STRESS　AND　IMPACTRESPONSE　OF　MESHING　GEARS

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Chinese Journal of Mechanical Engineering 1994年第1期7卷 63-67页

作者： li runfang Ou Hengan (Chongqing University)

A mixed finite element solution of contact stresses in meshing gears is investigated with the consideration of coupled thermo-elastic deformation and impact behavior. A simulation procedure of finite element solution of meshing gears is developed. The versatility of the procedure for both numerical accuracy and computational efficiency is verified by numerical analysis of meshing gear teeth.

关键词： Finite element method Coupled problem Therrno-elastic deformation Meshing gear

METHODS OF MODERN DESIGN FOR CYliNDRICAL GEAR DRIVE BASED ON THE INTERNET

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Chinese Journal of Mechanical Engineering 2002年第1期15卷 62-65页

作者： lin Chao li runfang State Key Laboratory of Mechanical Transmission，Chongqing University， Chongqing 400044，China Chongqing University State Key Laboratory of Mechanical Transmission 重庆 400044

The basic principle of modern design of cylindrical gear drive based on theInternet is described. The methods of optimized design, finite element analysis, CAD design and webdesign as well as research and development entity of three parties such as institute research unit(or university), enterprise and customer are also studied. Its purpose is to provide a necessaryfoundation for realizing the design of cylindrical gear drive from different location on the modemInternet and to explore a practice application route.

关键词： Internet Cylindrical gear Mechanical model

ELASTOPLASTIC CONTACT BEHAVIOR AND SHAPE OPTIMIZATION OF DRILLPIPE THREAD

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Chinese Journal of Mechanical Engineering 2001年第1期14卷 78-81+85页

作者： li runfang lin Tengjiao Du Xuesong State Key Lab.of Mechanical Transmission,Chongqing UniversityShi Taihe Southwest Oil Institute 重庆大学机械传动国家重点实验室重庆西南石油学院四川

The contact condition,stress strain field and shape optimization of thread profile for drillpipe connector are investigated by semi analytical finite element method for contact problem in order to enhance the load cap... 详细信息

关键词： Drillpipe Thread Elastoplastic Analysis Contact Shape optimization

Gene mapping of a new coat mutation in mouse

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Chinese Science Bulletin 1999年第13期44卷 1207-1210页

作者： Shanru li Dongping Wang Hong Lan Wenyan Zhang Baosheng Ge Jiqing li Cuie Wang Yifan Lu Yanyan Shi runfang li Inst Jingfeng Med Lab Anim Beijing 100071 Peoples R China Chinese Acad Sci Kunming Inst Zool Kunming 650107 Peoples R China Changchun Univ Agr & Anim Sci Changchun 130062 Peoples R China Beijing Inst Microbiol & Epidemiol Beijing 100071 Peoples R China Beijing Inst Biotechnol Beijing 100071 Peoples R China

Gene mapping of a mouse coat mutation has been investigated. First, 100 10-bp random primers were used to amplify DNA, but the mutation could not be located by this method because there were no correlation between the amplified products and coat phenotypes. Second, by using ldh1 , Car2, Mup1 , Pgb1 , Hbb, Es1O, Es1, Mod1, Gdc1 , Ce2, Es3 as genetic markers, linkage test crosses (two-point test) consisting of intercrossing uncovered BALB/c mice (homozygotes) to CBA/N and C57BL/6 mice with normal hair and backcrossing the heterozygotes of the F1 to the uncovered BALB/c mice were made. It was soon evident that the mutation was linked to Es3 on chromosome 11. Furthermore, three-point test was made by using Es3 and D11 Mit8 (a microsatellite DNA) as genetic markers. The result showed that the mutation was linked to Es3 with the percentage recombination of (7.89 ± 2.19) %, and linked to D11Mit8 with the percentage recombination of (26.30 ± 3.57)%. The percentage recombination between Es3 and D11Mit8 was

关键词： mouse mutation gene mapping.