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| 1 | Homogenization of temperature field and temperature gradient field显示文摘The homogenization of temperature field and temperature gradient field are very important for many devices, systems and equipments, such as satellites and electronic devices. This paper discusses the distribution optimization of the limited high conductivity material with the simulated annealing algorithm to homogenize the temperature field in a two-dimensional heat conduction problem. At the same time, the temperature gradient field is homogenized with the bionic optimization method. The results show that the two optimization targets are consistent to some extent, while the bionic optimization method could save much computing time. In addition, there are threshold values for the amount of high conductivity material and the ratio of the high conductivity to the low conductivity beyond which further increasing these values brings very little improvement on the homogenization of temperature field and temperature gradient field. | CHENG XueTao XU XiangHua LIANG XinGang | 2009 | Science China(Technological Sciences)2009，52，10： | 35 |
| 2 | Prognostic value of clinical and pathological factors for surgically treated localized clear cell renal cell carcinoma显示文摘 | Teng Jingfei Gao Yi Chen Ming Wang Kai Cui Xingang Liu Yushan Xu Danfeng | 2014 | Chinese Medical Journal2014，，9： | 23 |
| 3 | Radiative entransy flux in enclosures with non-isothermal or non-grey,opaque,diffuse surfaces and its application显示文摘The spectral radiative entransy flux and the total radiative entransy flux are defined for the steady radiative heat transfer processes in enclosures composed of non-isothermal or non-grey,opaque,diffuse surfaces.Based on the definitions,the radiative entransy flux balance equation and the radiative entransy dissipation functions are introduced under spectral and total wavelength condition.Furthermore,the minimum principle of radiative entransy loss,the extreme principle of radiative entransy dissipation and the minimum principle of radiative thermal resistance are developed.The minimum principle of radiative entransy loss shows that the potential and the net radiative heat flux distribution which meet the control equations and the boundary conditions would make the radiative entransy loss minimum if the net radiative heat flux or the potential distribution of the radiative heat transfer system is given.The extreme principle of radiative entransy dissipation indicates that the minimum radiative entransy dissipation leads to the minimum average potential difference for the prescribed total radiative heat exchange and the maximum radiative entransy dissipation leads to the maximum radiative heat exchange for the prescribed average potential difference.Moreover,the minimum principle of radiative thermal resistance tells us that the aforementioned extreme values of radiative entransy dissipation both correspond to the minimum value of radiative thermal resistance.Application examples are given for the extreme principle of spectral radiative entransy dissipation and the minimum principle of spectral radiative thermal resistance,and the principles are proved to be applicable. | CHENG XueTao XU XiangHua LIANG XinGang | 2011 | Science China(Technological Sciences)2011，54，9： | 20 |
| 4 | Application of entransy to optimization design of parallel thermal network of thermal control system in spacecraft显示文摘For distribution optimization of the flow rate of cold fluid and heat transfer area in the parallel thermal network of the thermal control system in spacecraft,a physical and mathematical model is set up,analyzed and discussed with the entransy theory.It is found that the optimization objective of this problem and the optimization direction of the extremum entransy dissipation principle are consistent in theory.For a two-branch thermal network system,the distributions of the flow rate of the cold fluid and the heat transfer area are optimized by calculating the extremum entransy dissipation with the Newton method.The influential factors of the optimized distributions are also analyzed and discussed.The results show that the main influence factors are the heat transfer rate of the branches and the total heat transfer area.The total flow rate of the cold fluid has a threshold,beyond which further increasing its value brings very little influence on the optimization results.Moreover,the difference between the extremum entransy dissipation principle and the minimum entropy generation principle is also discussed when they are used to analyze the problem in this paper,and the extremum entransy dissipation principle is found to be more suitable.In addition,the Newton method is mathematically efficient to solve the problem,which could accomplish the optimized distribution in a very short time for a ten-branch thermal network system. | CHENG XueTao XU XiangHua LIANG XinGang | 2011 | Science China(Technological Sciences)2011，54，4： | 19 |
| 5 | Theoretical analyses of the performance of a concentrating photovoltaic/thermal solar system with a mathematical and physical model, entropy generation minimization and entransy theory显示文摘In this paper, the performance of a concentrating photovoltaic/thermal solar system is numerically analyzed with a mathematical and physical model. The variations of the electrical efficiency and the thermal efficiency with the operation parameters are calculated. It is found that the electrical efficiency increases at first and then decreases with increasing concentration ratio of the sunlight, while the thermal efficiency acts in an opposite manner. When the velocity of the cooling water increases, the electrical efficiency increases. Considering the solar system, the surface of the sun, the atmosphere and the environment, we can get a coupled energy system, which is analyzed with the entropy generation minimization and the entransy theory. This is the first time that the entransy theory is used to analyze photovoltaic/thermal solar system. When the concentration ratio is fixed, it is found that both the minimum entropy generation rate and the maximum entransy loss rate lead to the maximum electrical output power,while both the minimum entropy generation numbers and the maximum entransy loss coefficient lead to the maximum electrical efficiency. When the concentrated sunlight is not fixed, it is shown that neither smaller entropy generation rate nor larger entransy loss rate corresponds to larger electrical output power. Smaller entropy generation numbers do not result in larger electrical efficiency, either. However, larger entransy loss coefficient still corresponds to larger electrical efficiency. | CHENG XueTao XU XiangHua LIANG XinGang | 2018 | Science China(Technological Sciences)2018，61，6： | 13 |
| 6 | A pair of transposon-derived proteins function in a histone acetyltransferase complex for active DNA demethylation显示文摘Transposons 被 epigenetic 机制通常包括 DNA methylation 使沉默。这里,我们识别了一双先驱导出 transposon 的蛋白质(HDP ) , HDP1 和 HDP2,在 Arabidopsis 的反沉默因素。hdp1 和 hdp2 异种显示了 transgenes 和某 transposons 的提高的 silencing。种系发生的分析表明 HDP1 和 HDP2 分别地从先驱编码 transposon 的 transposase 和 DNA 有约束力的蛋白质被共同驯养。HDP1 在原子核与 HDP2 交往,类似于他们的 transposon 对应物。而且, HDP1 和 HDP2 与组成在 DNA demethylation 工作的 histone acetyltransferase 建筑群的 IDM1, IDM2, IDM3 和 MBD7 被联系。HDP2 和 methyl-DNA-binding 蛋白质 MBD7 分享普通 genomic 绑定地点的一个大集合,显示他们联合决定 histone acetyltransferase 建筑群的目标特性。因此,我们的数据表明 HDP1 和 HDP2 组成被招募了到 histone acetyltransferase 建筑群阻止 DNA hypermethylation 和 epigenetic silencing 的一个功能的模块。 | Cheng-Guo Duan Xingang Wang Shaojun Xie Li Pan Daisuke Miki Kai Tang Chuan-Chih Hsu Mingguang Lei Yingli Zhong Yueh-Ju Hou ZhijuanWang Zhengjing Zhang Satendra K Mangrauthia Huawei Xu Heng Zhang Brian Dilkes W Andy Tao Jian-Kang Zhu | 2017 | Cell Research2017，27，2： | 6 |
| 7 | Nickel-Catalyzed Dicarbofunctionalization of Alkenes显示文摘As a straightforward strategy for rapidly increasing molecular complexity,dicarbofunctionalization of alkenes has attracted substantial interests of organic synthesis,medicine chemistry,and materials science.Nickel-catalyzed cascade dicarbofunctionalizations have been flourished in this area recently,and nickel-mediated radical pathways particularly offer new opportunities in conjunctive cross-couplings with alkyl coupling partners.Herein,we give a comprehensive review of nickel-catalyzed dicarbofunctionalization of alkenes through a historical perspective,including intermolecular three-component reactions and intramolecular cascade reactions.Among the pathways discussed in this review,the carbometallation/cross-coupling process and the radical addition/cross-coupling process are the two major pathways for the nickel-catalyzed dicarbofunctionalization of alkenes.The oxidative cyclization and 1,2-metallate shift processes are also selectively discussed.These methods overcome the limitations associated with the reactions using noble metals in the field,providing an efficient and straightforward access to structurally diversified molecules. | Yun-Cheng Luo Chang Xu Xingang Zhang | 2020 | Chinese Journal of Chemistry2020，38，11： | 4 |
| 8 | Effects of mesoscale eddies on the internal solitary wave propagation显示文摘The mesoscale eddy and internal wave both are phenomena commonly observed in oceans. It is aimed to investigate how the presence of a mesoscale eddy in the ocean affects wave form deformation of the internal solitary wave propagation. An ocean eddy is produced by a quasi-geostrophic model in f-plane, and the one-dimensional nonlinear variable-coefficient extended Korteweg-de Vries (eKdV) equation is used to simulate an internal solitary wave passing through the mesoscale eddy field. The results suggest that the mode structures of the linear internal wave are modified due to the presence of the mesoscale eddy field. A cyclonic eddy and an anticyclonic eddy have different influences on the background environment of the internal solitary wave propagation. The existence of a mesoscale eddy field has almost no prominent impact on the propagation of a smallamplitude internal solitary wave only based on the first mode vertical structure, but the mesoscale eddy background field exerts a considerable influence on the solitary wave propagation if considering high-mode vertical structures. Furthermore, whether an internal solitary wave first passes through anticyclonic eddy or cyclonic eddy, the deformation of wave profiles is different. Many observations of solitary internal waves in the real oceans suggest the formation of the waves. Apart from topography effect, it is shown that the mesoscale eddy background field is also a considerable factor which influences the internal solitary wave propagation and deformation. | LIAO Guanghong YANG Chenghao XU Xiaohua SHI Xingang YUAN Yaochu HUANG Weigen | 2012 | Acta Oceanologica Sinica2012，31，5： | 4 |
| 9 | Ablation characteristics of mosaic structure ZrC-SiC coatings on low-density, porous C/C composites显示文摘Mosaic structure ZrC-SiC coatings were fabricated on low-density, porous C/C composites via thermal evaporation and an in-situ method. ZrC was packed in a typical lamellar mode, and the mosaic structure was formed by the deposition of Zr and Si atoms on the shallow surface of the porous C/C composites.Ablation analysis showed that the defects in the coatings originate from the boundary between the ZrC and holes created by the consumption of SiC at 2500℃. After ablation for 200 s at 3000℃, a dense ZrO2 layer formed on the coating surface, and the defects were sealed owing to the continuous supply of ablative components. The mass and line ablation rates of the Zr C-SiC coatings were-0.46 ± 0.15 mg cm^-2·s^-1 and-1.00± 0.04 μm s^-1, respectively. | Yonglong Xu Wei Sun Xiang Xiong Fuqun Liu Xingang Luan | 2019 | Journal of Materials Science & Technology2019，35，12： | 4 |
| 10 | OsPKpa_1 encodes a plastidic pyruvate kinase that affects starch biosynthesis in the rice endosperm显示文摘Pyruvate kinase(PK) is a key enzyme in glycolysis and carbon metabolism. Here, we isolated a rice(Oryza sativa) mutant, w59, with a white-core floury endosperm. Map-based cloning of w59 identified a mutation in OsPKpa_1, which encodes a plastidic isoform of PK(PKp). OsPKpa_1 localizes to the amyloplast stroma in the developing endosperm, and the mutation of OsPKpa_1 in w59 decreases the plastidic PK activity, resulting in dramatic changes to the lipid biosynthesis in seeds. The w59 grains were also characterized by a marked decrease in starch content. Consistent with a decrease in number and size of the w59 amyloplasts, large empty spaces were observed in the central region of the w59 endosperm, atthe early grain-filling stage. Moreover, a phylogenetic analysis revealed four potential rice isoforms of OsPKp. We validated the in vitro PK activity of these OsPKps through reconstituting active PKp complexes derived from inactive individual OsPKps, revealing the heteromeric structure of rice PKps, which was further confirmed using a protein–protein interaction analysis. These findings suggest a functional connection between lipid and starch synthesis in rice endosperm amyloplasts. | Yue Cai Wenwei Zhang Jie Jin Xiaoming Yang Xiaoman You Haigang Yan Liang Wang Jie Chen Jiahuan Xu Weiwei Chen Xingang Chen Jing Ma Xiaojie Tang Fei Kong Xiaopin Zhu Guoxiang Wang Ling Jiang William Terzaghi Chunming Wang Jianmin Wan | 2018 | Journal of Integrative Plant Biology2018，60，11： | 3 |
| 11 | Research on the Status Quo and Supervision Mechanism of Food Safety in China显示文摘Food safety supervision mechanism is a strong guarantee to promote the smooth implementation of China's food safety laws and regulations,and it is implemented through legal,administrative,economic,moral and other integrated policy instruments,as well as media publicity,quality traceability,network tracking,information disclosure and other non-administrative means. Along with strengthening supervision and control means,the people's food safety in China is safeguarded,and the healthy development of the food industry is promoted. | Shengzhong DONG Fangxu XU Siyuan TAO Longkun WU Xingang ZHAO | 2018 | Asian Agricultural Research2018，10，2： | 3 |
| 12 | Experimental study on spray cooling under reduced pressures显示文摘Spay cooling is a complicated flow and heat transfer process affected by multi-factors among which the environmental pressure is extremely important. However the influence of pressure is not investigated sufficiently, especially the reduced pressure. In the present study, spray cooling under low initial environmental partial pressures and vapor partial pressures with R21 are investigated with a closed spray and condensation system. To study the influence of initial environmental partial pressure, different amounts of nitrogen are inflated into the vacuum flash chamber, while the vapor partial pressure is kept constant. To study the influence of vapor partial pressure, a cascade refrigerator is used to condense the vapor with different condensation temperatures so that the vapor partial pressure can be maintained or adjusted, while the initial environmental partial pressure is kept constant.The experimental results show that the spray cooling power increases monotonically with the increasing spray flow rate in the experimental range, while the cooling efficiency decreases with the increasing spray flow rate. The spray cooling power and cooling efficiency vary with the initial environmental partial pressure or the vapor partial pressure non-monotonously, which indicates there is an optimal pressure for the heat transfer performance. Besides, the mechanism of the non-monotonous variation trend is discussed based on the key aspects including flash evaporation, convection and boiling. Especially, the boiling heat transfer curve is applied to explain the trend. | PENG Can XU XiangHua LI Ye Ming LI YuLong LIANG XinGang | 2019 | Science China(Technological Sciences)2019，62，2： | 2 |
| 13 | Enantioseparation and Determination of the Chiral Fungicide Furametpyr Enantiomers in Rice, Soil, and Water by High‐Performance Liquid Chromatography显示文摘 | Fengshou Dong Xiu Chen Jun Xu Xingang Liu Zenglong Chen Yuanbo Li Hongjun Zhang Yongquan Zheng | 2013 | Chirality2013，，12： | 2 |
| 14 | Prevalence of Dyslipidemia and Associated Factors Among the Hypertensive Rural Chinese Population显示文摘 | Xingang Zhang Zhaoqing Sun Liqiang Zheng Jue Li Shuangshuang Liu Changlu Xu Jiajin Li Fenfen Zhao Dayi Hu Yingxian Sun | 2007 | Archives of Medical Research2007，，4： | 1 |
| 15 | Identification of tissue types and boundaries with a fiber optic force sensor显示文摘The absence of tactile force information at the tip of a medical instrument makes precise minimally invasive surgery difficult and is prone to resulting in serious outcomes.In this paper,a fiber optic force sensor is fabricated based on Fabry-P′erot interferometry and integrated with a puncture needle.The force sensor is attached to the needle tip,where interactive force arises as it inserts into soft tissue.Needle insertion experiments have been conducted on ex vivo swine liver and belly with the calibrated force sensor.Using wavelet transform method,the acquired force data are analyzed and used to identify layered tissue types and boundaries.We found that the force amplitudes are not always identical,but the patterns of forces are almost the same,which enables us to identify layered tissues and to realize a safe needle insertion procedure under robot control. | YANG TangWen ZHU HaiFeng HAN JianDa ZHAO XinGang XU WeiLiang | 2014 | Science China(Information Sciences)2014，57，12： | 1 |
| 16 | Esti- mation of ieaf water content in winter wheat using grey relational a- nalysis - partial least squares modeling with hyperspectral data 显示文摘 | JIN XIULIANG XU XINGANG SONG XIAOYU | 2013 | Agronomy Journal2013，105，5： | 1 |
| 17 | A method of estimating soil moisture based on the lineardecompositionof mixture pixels 显示文摘 | GAO ZHONGLING XU XINGANG WANG JIHUA | 2013 | Mathematical and Computer Modelling2013，58，： | 1 |
| 18 | Evaluating the Tourism Resources' Development by AHP | Wang Xingang Xu Cheng(Depart. of Maths.,Qingdao University, Qingdao 266071 P.R.China)Li Qun(Shandong Financial College, Ji’nan Shandong 250000 P.R.China) | 1998 | Systems Science and Systems Engineering1998，8，4： | 1 |
| 19 | Simultaneous determination of spirotetramat and its four metabolites in fruits and vegetables using a modified quick, easy, cheap, effective, rugged, and safe method and liquid chromatography/tandem mass spectrometry显示文摘 | Zhu Yulong Liu Xingang Xu Jun | 2013 | J ChromatogrA2013，1299，： | 1 |
| 20 | Residue analysis of four diacylhydrazine insecticides in fruits and vegetables by Quick, Easy, Cheap, Effective, Rugged, and Safe (QuECh ERS) method using ultra-performance liquid chromatography coupled to tandem mass spectrometry 显示文摘 | Liu Xingang Xu Jun Dong Fengshou | 2011 | Analytical and Bio analytical Chemistry2011，401，3： | 1 |
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