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45篇 您的检索式:作者名="HE YongYong"
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1A partition-ligation-combination-subdivision EM algorithm for haplotype inference with multiallelic markers: update of the SHEsis (http://gffzzfcd63c5b87fd4ae2hf9voknw59qfn6obu.ffgz.tsg.suse.edu.cn)显示文摘Zhiqiang Li Zhao Zhang Zangdong He Wei Tang Tao Li Zhen Zeng Lin He Yongyong Shi 2009Cell Research2009,19,4:122
2Opportunities and challenges of the Sponge City construction related to urban water issues in China显示文摘Waterlogging is one of the major water issues in most cities of China and directly restricts their urbanization processes.The construction of Sponge City is an effective approach to solving the urban water issues,particularly for the waterlogging.In this study,both the urban issues emerged at the stage of rapid urbanization in China and the demands as well as problems of Sponge City construction related with the water issues were investigated,and the opportunities and challenges for the Sponge City construction in the future were also proposed.It was found that the current stormwater management focused on the construction of gray infrastructures(e.g.,drainage network and water tank) based on the fast discharge idea,which was costly and hard to catch up with the rapid expansion of city and its impervious surface,while green infrastructures(e.g.,river,lake and wetland)were ignored.Moreover,the current construction of Sponge City was still limited to low impacted development(LID) approach which was concentrated on source control measures without consideration of the critical functions of surrounding landscapes(i.e.,mountain,river,wetland,forest,farmland and lake),while application of the integrated urban water system approach and its supported technologies including municipal engineering,urban hydrology,environmental science,social science and ecoscape were relatively weak and needed to be improved.Besides,the lack of special Sponge City plan and demonstration area was also a considerable problem.In this paper,some perspectives on Good Sponge City Construction were proposed such as the point that idea of urban plan and construction should conform to the integral and systematic view of sustainable urban development.Therefore,both the basic theoretical research and the basic infrastructure construction such as monitoring system,drainage facility and demonstration area should be strengthened,meanwhile,the reformation and innovation in the urban water management system and the education system should also be urgently performed.The study was expected to provide a deeper thinking for the current Sponge City construction in China and to give some of suggestions for the future directions to urban plan and construction,as well as urban hydrology discipline.XIA Jun ZHANG YongYong XIONG LiHua HE Shan WANG LongFeng YU ZhongBo 2017Science China Earth Sciences2017,60,4:65
3Optimization of groove texture profile to improve hydrodynamic lubrication performance:Theory and experiments显示文摘It is well known that groove texture with a careful design can be used to enhance the load‐carrying capacity of oil film under the conditions of hydrodynamic lubrication.In this study,a general parametric model was developed,and agenetic algorithm‐sequential quadratic programming hybrid method was adopted to obtain the global‐optimum profile of the groove texture.The optimized profiles at different rotating speeds are all chevrons.The numerical analysis results verified the effect of the optimization.In addition to the numerical optimization,experiments were conducted to validate the superiority of the optimized results.The experimental results show that the optimized groove texture can efficiently reduce the coefficient of friction(COF)and the temperature rise of the specimen.In particular,the optimized groove textures can achieve stable ultra‐low COF values(COF<0.01)under certain conditions.Wei WANG Yongyong HE Jun ZHAO Junyuan MAO Yutong HU Jianbin LUO 2020Friction2020,8,1:13
4Nanolubricant additives: A review显示文摘Using nanoadditives in lubricants is one of the most effective ways to control friction and wear,which is of great significance for energy conservation,emission reduction,and environmental protection.With the scientific and technological development,great advances have been made in nanolubricant additives in the scientific research and industrial applications.This review summarizes the categories of nanolubricant additives and illustrates the tribological properties of these additives.Based on the component elements of nanomaterials,nanolubricant additives can be divided into three types:nanometal-based,nanocarbon-based,and nanocomposite-based additives.The dispersion stabilities of additives in lubricants are also discussed in the review systematically.Various affecting factors and effective dispersion methods have been investigated in detail.Moreover,the review summarizes the lubrication mechanisms of nanolubricant additives including tribofilm formation,micro-bearing effect,self-repair performance,and synergistic effect.In addition,the challenges and prospects of nanolubricant additives are proposed,which guides the design and synthesis of novel additives with significant lubrication and antiwear properties in the future.Jun ZHAO Yiyao HUANG Yongyong HE Yijun SHI 2021Friction2021,9,5:9
5PARAMETERS OPTIMIZATION OF CONTINUOUS WAVELET TRANSFORM AND ITS APPLICATION IN ACOUSTIC EMISSION SIGNAL ANALYSIS OF ROLLING BEARING显示文摘Morlet wavelet is suitable to extract the impulse components of mechanical fault signals. And thus its continuous wavelet transform (CWT) has been successfully used in the field of fault diagnosis. The principle of scale selection in CWT is discussed. Based on genetic algorithm,an opti-mization strategy for the waveform parameters of the mother wavelet is proposed with wavelet en-tropy as the optimization target. Based on the optimized waveform parameters,the wavelet scalogram is used to analyze the simulated acoustic emission (AE) signal and real AE signal of rolling bearing. The results indicate that the proposed method is useful and efficient to improve the quality of CWT.ZHANG Xinming HE Yongyong HAO Rujiang CHU Fulei 2007Chinese Journal of Mechanical Engineering2007,20,2:7
6SHEsisEpi, a GPU-enhanced genome-wide SNP-SNP interaction scanning algorithm, efficiently reveals the risk genetic epistasis in bipolar disorder显示文摘Xiaohan Hu Qiang Liu Zhao Zhang Zhiqiang Li Shilin Wang Lin He Yongyong Shi 2010Cell Research2010,20,7:5
7Study on friction performance and mechanism of slipper pair under different paired materials in high-pressure axial piston pump显示文摘High-pressure axial piston pumps operate in high-speed and high-pressure environments. The contact state of the slipper against the swashplate can easily change from an oil film lubrication to a mixed oil film/asperity contact, or even dry friction. To improve the dry friction performance of slipper pairs and to avoid their potentially rapid failure, this study examined the effects of material matching on the dry friction performance of the slipper pair for high-pressure axial piston pumps. A FAIAX6 friction and wear tester was developed, and the dry friction coefficients of the slipper pairs matched with different materials were studied using this tester. Based on the thermo-mechanical coupling of the slipper pair with the working process, the contact surface temperatures of the slipper pairs matched with different materials were calculated and analyzed for the same working conditions. Following this, the effects of the material properties on the temperature increase at the slipper sliding contact surfaces were revealed. The reliabilities of the temperature calculations and analysis results were verified through orthogonal tests of slipper pairs matched with different materials. The results indicate that the influence of the material density on the friction coefficient is greater than that of the Poisson's ratio or the elastic modulus, and that the slipper material chosen should have a high thermal conductivity, low density, and low specific heat, whereas the swashplate material should be high in specific heat, density, and thermal conductivity;in addition, the slipper pair should be a type of hard material to match the type of soft material applied;that is, the hardness of the swashplate material should be greater than that of the slipper material.Huaichao WU Limei ZHAO Siliang NI Yongyong HE 2020Friction2020,8,5:4
8Contact stress non-uniformity of wafer surface for multi-zone chemical mechanical polishing process显示文摘A finite element analysis(FEA)model is developed for the chemical-mechanical polishing(CMP)process on the basis of a 12-in five-zone polishing head.The proposed FEA model shows that the contact stress non-uniformity is less dependent on the material property of the membrane and the geometry of the retaining ring.The larger the elastic modulus of the pad,the larger contact stress non-uniformity of the wafer.The applied loads on retaining ring and zone of the polishing head significantly affect the contact stress distribution.The stress adjustment ability of a zone depends on its position.In particular,the inner-side zone has a high stress adjustment ability,whereas the outer-side zone has a low stress adjustment ability.The predicted results by the model are shown to be consistent with the experimental data.Analysis results have revealed some insights regarding the performance of the multi-zone CMP.WANG TongQing LU XinChun ZHAO DeWen HE YongYong 2013Science China(Technological Sciences)2013,56,8:3
9An investigation on the tribological behaviors of steel/copper and steel/steel friction pairs via lubrication with a graphene additive显示文摘In this study,the tribological behaviors of graphene as a lubricant additive for steel/copper and steel/steel friction pairs were compared.For the steel/copper friction pair,the graphene sheets remarkably decreased the coefficient of friction and wear scar depth under low loads,but these slightly increased under high loads.The steel/steel friction pair showed excellent tribological properties even under high loads.Severe plastic deformation on the copper surface reduced the stability of the graphene tribofilm because of a rough copper transfer film on the steel during the running-in period.The results provide a better understanding of the mechanism of graphene as a lubricant additive.Junyuan MAO Guangyan CHEN Jun ZHAO Yongyong HE Jianbin LUO 2021Friction2021,9,2:2
10Improvement of the lubrication properties of grease with Mn_(3)O_(4)/graphene (Mn_(3)O_(4)#G) nanocomposite additive显示文摘Although grease can effectively lubricate machines,lubrication failure may occur under high speed and heavy load conditions.In this study,Mn_(3)O_(4)/graphene nanocomposites(Mn_(3)O_(4)#G)were synthetized using a hydrothermal method as lubricant additives.The lubrication properties of compound grease with Mn_(3)O_(4)#G nanocomposite additive under heavy contact loads of 600–900 N(3.95–4.59 GPa)were investigated.First,the nanocomposites were dispersed into L-XBCEA 0 lithium grease via successive electromagnetic stirring,ultrasound vibration,and three-roll milling.Compound grease with additives of commercial graphene(Com#G)was also investigated for comparison.Tribological test results revealed that the trace amounts of Mn_(3)O_(4)#G(as low as 0.02 wt%)could reduce the coefficient of friction(COF)of grease significantly.When the concentration of Mn_(3)O_(4)#G was 0.1 wt%,the COF and wear depth were 43.5%and 86.1%,lower than those of pure graphene,respectively.In addition,under the effect of friction,the microstructure of graphene in Mn_(3)O_(4)#G nanocomposites tends to be ordered and normalized.Furthermore,most of the Mn_(3)O_(4) transformed into Mn_(2)O_(3) owing to the high temperature generated from friction.Using the Ar gas cluster ion beam sputtering method,the thickness of the tribofilm was estimated to be 25–34 nm.Finally,the improvement of the lubrication properties was attributed to the synergistic effect of the adsorbed tribofilm,i.e.,the graphene island effect and the filling effect of Mn_(3)O_(4)#G.Bao JIN Guangyan CHEN Jun ZHAO Yongyong HE Yiyao HUANG Jianbin LUO 2021Friction2021,9,6:2
11Influence of a carbon-based tribofilm induced by the friction temperature on the tribological properties of impregnated graphite sliding against a cemented carbide显示文摘Impregnated graphite has attracted considerable attention and has been widely used as an ideal friction material in many fields.However,the influence of the friction temperature on its tribological properties has not been clearly studied;furthermore,the evolution mechanism of transferred tribofilm is unknown.In this study,the tribological properties of impregnated graphite were investigated at different friction temperatures,and the evolution of the carbon-based tribofilm was also determined.The results revealed that the tribological properties significantly improved with an increase in friction temperature.The friction coefficient and wear depth of impregnated graphite reduced by 68%and 75%,respectively,at a high temperature of 160℃ compared with those of non-impregnated graphite.The significant properties of the impregnated graphite can be attributed to a transferred carbon-based tribofilm with an ordered structure induced by the friction temperature,which uniformly and stably adsorbs on friction interfaces.This study provides an important basis for designing graphite-based friction materials with improved properties suited for industrial applications.Jun ZHAO Qingzhan LI Shuangxi LI Shicong LI Guangyan CHEN Xinghua LIU Yongyong HE Jianbin LUO 2021Friction2021,9,4:2
12Fault recognition method for speed - up and speed - down process of rotating machinery based an independent component analysis and Factorial Hidden Markov Model显示文摘Zhinong Li Yongyong He Fulei Chu Jie Han Wei Ham 2006Journal of Sound and Vibration2006,291,:1
13Decoding psychosis:from national genome project to national brain project显示文摘The mind has puzzled humans for centuries,and its disorders,such as psychoses,have caused tremendous difficulties.However,relatively recent biotechnological breakthroughs,such as DNA technology and neuroimaging,have empowered scientists to explore the more fundamental aspects of psychosis.From searching for psychosis-causing genes to imaging the depths of the brain,scientists worldwide seek novel methods to understand the mind and the causes of its disorders.This article will briefly review the history of understanding and managing psychosis and the main findings of modern genetic research and then attempt to stimulate thought for decoding the biological mechanisms of psychosis in the present era of brain science.Liya Sun Manfei Xu Yongyong Shi Yifeng Xu Jinghong Chen Lin He 2022General Psychiatry2022,35,4:1
14Positive association of the human GABA-A-receptor beta 2 subunit gene haplotype with schizophrenia in the Chinese Han population显示文摘Jixia Liu Yongyong Shi Wei Tang Tingwei Guo Dawei Li Yifeng Yang Xinzhi Zhao Hongsheng Wang Xingwang Li Guoyin Feng Niufan Gu Shaomin Zhu Huijun Liu Yangling Guo Jianguo Shi Hong Sang Lijuan Yan Lin He 2005Biochemical and Biophysical Research Communications2005,,3:1
15Hidden Markov model-based fault diagnostics method in speed-up and speed-down process for rotating machinery显示文摘Zhinong Li Zhaotong Wu Yongyong He Fulei Chu 2005Mechanical Systems and Signal Processing2005,19,2:1
16Differences in CYP3A4 ? 1G genotype distribution and haplotypes of CYP3A4 , CYP3A5 and CYP3A7 in 3 Chinese populations显示文摘Jing Du Lan Yu Lei Wang Aiping Zhang Anli Shu Lingyun Xu Mingsheng Xu Yongyong Shi Xingwang Li Guoyin Feng Qinghe Xing Lin He 2007Clinica Chimica Acta2007,,1:1
17Systematic screening for polymorphisms in the CYP3A4 gene in the Chinese population显示文摘Jing Du Qinghe Xing Lingyun Xu Mingsheng Xu Anli Shu Yongyong Shi Lan Yu Aiping Zhang Lei Wang Hongsheng Wang Xingwang Li Guoyin Feng Lin He 2006Pharmacogenomics2006,,6:1
18Experimental research into time- frequency characteristics of cavitation noise using wavelet scalogram显示文摘He Yongyong Liu Yuan 2011Applied Acoustics2011,72,10:1
19HYDES: A Web-based hydro turbine fault diagnosis system显示文摘Guangxiong Song Yongyong He Fulei Chu Yujiong Gu 2006Expert Systems With Applications2006,,1:1
20Application of the blind source separation in machine fault diagnosis:a review and prospect 显示文摘Li Zhinong He Yongyong Chu Fulei 2005Mechanical Systems and Signal Processing2005,19,1:1
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