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| 1 | An equivalent ground thermal test method for single-phase fluid loop space radiator显示文摘Thermal vacuum test is widely used for the ground validation of spacecraft thermal control system. However, the conduction and convection can be simulated in normal ground pressure environment completely. By the employment of pumped fluid loops' thermal control technology on spacecraft, conduction and convection become the main heat transfer behavior between radiator and inside cabin. As long as the heat transfer behavior between radiator and outer space can be equivalently simulated in normal pressure, the thermal vacuum test can be substituted by the normal ground pressure thermal test. In this paper, an equivalent normal pressure thermal test method for the spacecraft single-phase fluid loop radiator is proposed. The heat radiation between radiator and outer space has been equivalently simulated by combination of a group of refrigerators and thermal electrical cooler(TEC) array. By adjusting the heat rejection of each device, the relationship between heat flux and surface temperature of the radiator can be maintained. To verify this method,a validating system has been built up and the experiments have been carried out. The results indicate that the proposed equivalent ground thermal test method can simulate the heat rejection performance of radiator correctly and the temperature error between in-orbit theory value and experiment result of the radiator is less than 0.5 C, except for the equipment startup period. This provides a potential method for the thermal test of space systems especially for extra-large spacecraft which employs single-phase fluid loop radiator as thermal control approach. | Ning Xianwen Wang Yuying Zhang Jiaxun Liu Dongxiao | 2015 | Chinese Journal of Aeronautics2015，28，1： | 7 |
| 2 | Characterizing the capability of mesoscale eddies to carry drifters in the northwest Pacific显示文摘Mesoscale eddies are common oceanic phenomena.Although many related studies have been conducted,the ability for mesoscale eddies to carry real particles remains poorly addressed.We considered the drifters as real particles to characterize the capability of mesoscale eddies to carry particles.Firstly,mesoscale eddies in the northwest Pacific(99°E-180°E,0°-66°N)were identified using sea level anomaly(SLA)data from 1993 to 2015.Secondly,three important parameters(the carrying days,the number of circles the drifter revolving around the eddy center,and the carrying distances)were calculated by colocalizing eddy data with drifters.Finally,statistical analysis and composite analysis were conducted,reflecting the capability of mesoscale eddies to carry particles.The mechanisms on the carrying capability of eddies were also discussed.Results show that(1)the motion of carried drifters reflects the upper limit of rotational speed of eddies that the drifters revolve around the eddy center by≤90°for one day in most cases;(2)the drifters tend to be carried for a longer time when their minimal distances to the eddy center measured with normalized distance are small;(3)there are two types of eddies(cyclonic and anticyclonic eddies)in different subregions of northwest Pacific,and each has a different carrying capability(on average,similar in the tropical ocean and Subtropical Countercurrent,cyclonic eddies tend to have stronger carrying capability in Southern Kuroshio Extension,and anticyclonic eddies tend to have stronger carrying capability in Northern Kuroshio Extension and Subarctic Gyre);(4)on average,the carried drifters tend to travel for a longer time around the normalized eddy radii ranging from 0.41 to 0.76;(5)the carrying days are related to the Rossby number of the eddy(in general when the Rossby number is smaller,the carrying days are longer). | WANG Huizan LIU Ding ZHANG Weimin LI Jiaxun WANG Bo | 2020 | Journal of Oceanology and Limnology2020，38，6： | 5 |
| 3 | Application of spectral technology in flame measurement显示文摘 | Jiaxun LIU Xiaoshu CAI Zenghao ZHU Huinan YANG | 2014 | Frontiers in Energy2014，8，1： | 3 |
| 4 | Progress in the beam commissioning of separated function RFQ accelerator显示文摘Separated Function RFQ (SFRFQ) was proposed as a post accelerator of RFQ to accelerate heavy ions at low frequency. It introduces gap accelerating in the quadrupole electrodes, and therefore it has higher accelerating efficiency than the conventional RFQ accelerator. The first SFRFQ prototype cavity has been specially designed and constructed as a post accelerator to accelerate O+ beam from 1.03 MeV to 1.64 MeV. Based on accomplishment of low power measurement and high power test, the beam commissioning was carried out to verify its feasibility. The measured energy gain per cell of SFRFQ is 45 keV, which is about 60% higher than that of Peking University Integral Split Ring (ISR) RFQ. | MingLei Kang (1) YuanRong Lu (1) Zhi Wang (1) Kun Zhu (1) XueQing Yan (1) ZhiYu Guo (1) ShuLi Gao (1) ShiXiang Peng (1) Ao Liu (2) JiaXun Fang (1) JiaEr Chen (1) | 2011 | Science China(Physics,Mechanics & Astronomy)2011，54，S2： | 2 |
| 5 | Experimental Studies on Condensation Heat Transferof the Moist Air outside the Horizontal Circular Pipe witha Porous Layer显示文摘This paper presents the structure design of four kinds of circular pipes with porous layer and the experimental resultsof condensation heat transfer of the moist air outSide the horizontal choular pipes. By comparison with theexperiments on bare Pipes, it is concluded that, the designed pipes not only have good condensation heattransfer Performance, but also have the ability to collect and remove condensed liquid under zero gravity. They canbe aPPlied to the thermal control system for future large spacecraft. | Liu Qiang Zhang Jiaxun Zhong Qi(Beting Institute of Spacecraft System Engineering, R.O. Box 9628-5, Beijing 100086, China) | 1999 | Journal of Thermal Science1999，8，2： | 1 |
| 6 | NO~ emission of fine-and superfine- pulverized coal combustion in O2,2CO2 atmosphere 显示文摘 | Jiang Xiumin Huang Xiangyong Liu Jiaxun | 2010 | Energy and Fuels2010，24，12： | 1 |
| 7 | Modelling and experimen- tal study on agglomeration of particles from coal combustion in mul- tistage spouted fluidized tower显示文摘 | Gao Jihui Liu Jiaxun Gao Jianmin | 2009 | Advanced Powder Technology2009，20，4： | 1 |
| 8 | Modelling and experimental study on agglomeration ofparticles from coal combustion in multistage spouted fluidized tower显示文摘 | Gao Jihui Liu Jiaxun Gao Jianmin Du Qian Wang Xiaofeng WuShaohua | 2009 | Advanced Powder Technology2009，20，： | 1 |
| 9 | A combined experimental and theoretical study of micronized coal reburning显示文摘使成为微小粒子的煤重新烧(宏) 不能仅仅在苍蝇灰减少碳而且不作为与重新烧的常规煤相比减少 x 排出物。然而,它在不最小化 x 排放有二个主要运动障碍。第一是变换不,进氢,由有各种各样的烃的连词的氰化物(HCN ) 碎裂。第二是由与包含氧的组一起的协会的 HCN 的氧化。阐明宏的优点,弥漫的思考 Fourier 变换的联合红外线(FTIR ) 有密度功能的理论(DFT ) 的试验性的研究理论计算以第二个运动障碍被进行。FTIR 基于例如有五个氢氧化物组的中国 Tiefa 煤表演学习哦 -- , OH-N, OHOR2,自我联系哦并且免费哦。氢氧化物组织吝啬的粒子尺寸减少免费期望的增加哦。在 B3LYP/6-31 G (d) 水平的 DFT 计算显示 HCN 能被氢氧化物组在三条路径, HCN +OHHOCN + H (路径 1 ) , HCN +OHHNCO + H (路径 2 ) ,和 HCN + 氧化哦 CN + H2O (路径 3 ) 。为路径 1,路径 2 和路径 3 限制步的率是 IM2P1 + H (170.66 kJ/mol 激活精力) , IM1IM3 (231.04 kJ/mol 激活精力) ,并且 R1 +OHP3 + H2O (97.14 kJ/mol 激活精力) 分别地。宏的现在的学习将提供卓见进它的更低为进一步的研究的没有 x 排放和指导。 | Hai ZHANG Jiaxun LIU Jun SHEN Xiumin JIANG | 2013 | Frontiers in Energy2013，7，1： | 1 |
| 10 | Simultaneous removal of SO2 and NOx by calcium hydroxide at low temperature: evolution of the absorbent surface structure 显示文摘 | Gao Jihui Chela Guoqing Liu Jiaxun | 2010 | Energy & Fuels2010，24，： | 1 |
| 11 | Morphological characterization of superfine pulverized coal particles 1 : Fractal characteristics and economic fineness 显示文摘 | LIU JIAXUN JIANG XIUMIN HUANG XIANGYONG | 2010 | Energy Fuels2010，24，： | 1 |
| 12 | An equivalent ground thermal test method for single-phase fluid loop space radiator显示文摘 | Xianwen Ning Yuying Wang Jiaxun Zhang Dongxiao Liu | 2014 | Chinese Journal of Aeronautics2014，，： | 1 |
| 13 | Morphological characterization of superfine pulverized coal particles:1:fractal characteristics and economic fineness显示文摘 | LIU Jiaxun JIANG Xiumin HUANG Xiangyong | 2010 | Energy Fuels2010，24，2： | 1 |
| 14 | Sequencing and phylogenetic analysis of an avian reovirus genome显示文摘 | Liqiong Teng Zhixun Xie Liji Xie Jiabo Liu Yaoshan Pang Xianwen Deng Zhiqin Xie Qing Fan Sisi Luo Jiaxun Feng Mazhar I. Khan | 2014 | Virus Genes2014，，2： | 1 |
| 15 | Magnetized Water Improves Digestion and Growth of Lambs显示文摘Twelve of weaned Small-tail Han male lambs,with body weight of(7.99±1.04)kg,at 30 days of age,were divided into two groups to study the effect of drinking magnetized water(MW)on digestion and metabolism of lambs.The voluntary intake and ADG from 30 to 240 days of age were measured,twice of digestion and metabolism trial were carried out,and at the age of 240 days slaughter test was conducted.The results showed that drinking MW significantly increased voluntary feed intake(27.2%),ADG(27.4%)and apparent digestibility of DM(17.9%),OM(20.2%),CP(22.8%),and energy(12.7%),respectively.The nitrogen retention in two experimental trials significantly increased by 43.9%and 28.9%,respectively.Drinking MW significantly increased live body weight(24.5%),carcass weight(28.2%),carcass net meat weight(25.5%),carcass lean weight(32.5%)and carcass fat weight(31.3%),respectively.The fresh weights of liver,kidney,rumen,longissimus dorsi and leg muscle of lambs drinking MW increased significantly,but there was no significant difference in their contents of DM,OM and CP.It is concluded that drinking MW is beneficial for increasing voluntary feed intake,digestibility,and ADG,and improving slaughter performance of lambs. | Xie Jiaxun Luo Qiujiang Zang Changjiang Liu Shimin Pan Rong | 2020 | Animal Husbandry and Feed Science2020，12，2： | 0 |
| 16 | Absolute Configurational Assignments of Amino Acid Esters by a CD-Sensitive Malonamide-Linked Zinc Bisporphyrinate Host显示文摘A novel malonamide-linked zinc bisporphyrinate[Zn_(2)-1]has been designed and synthesized.UV-vis and NMR spectroscopic studies suggest the molecule aggregates in solution.Such zinc bisporphyrinate is very CD-sensitive when it is mixed with amino acid ethyl esters.The amplitude value of the induced circular dichroism(ICD)is up to ca.1500 L•mol^(−1)•cm^(−1).Further studies by ^(1)H NMR and UV-vis spectroscopies reveal amino acid esters function as monodentate ligands,and[Zn_(2)-1]interacts with amino acid ethyl esters through coordination and hydrogen bonding interactions. | Baozhen Liu Jiaxun Jiang Xianshi Fang Chuanjiang Hu | 2014 | Chinese Journal of Chemistry2014，32，8： | 0 |
| 17 | A privacy-enhancing scheme against contextual knowledge-based attacks in location-based services显示文摘1 Introduction and main contributions Location-based services are springing up around us,while leakages of users'privacy are inevitable during services.Even worse,adversaries may analyze intercepted service data,and extract more privacy like health and property.Therefore,privacy preservation is an indispensable guarantee on LBS security.Among the previous approaches to privacy preservation,k-anonymity-based ones have drawn much research attention[1-3].However,some privacy concern will be aroused if these schemes are adopted directly.For instance,Ut issues a query'Find the nearest hotel around me'in such an area as Fig.1(privacy profile k=4).DLS algorithm[2]constructs anonymity set A because these four cells have similar probabilities of being queried in the past.However,experienced adversaries can exclude some cells if they have learned rich contextual knowledge(side information)from historical data,such as features of each cell and LBS users. | Jiaxun HUA Yu LIU Yibin SHEN Xiuxia TIAN Yifeng LUO Cheqing JIN | 2020 | Frontiers of Computer Science2020，14，3： | 0 |
| 18 | Detailed in-furnace measurements with reburning of superfine pulverized coal in high CO_(2)concentration显示文摘This paper presents detailed measurements of gaseous species during the reburning process with high CO_(2)concentration in a bench-scale furnace.Superfine pulverized coal,with the average particle size below or around 20μm,is used as the reburning fuel.The data of flue gas concentration(NOx,HCN,NH_(3),CH_(4),O_(2),CO,CO_(2)etc.)is obtained in order to reveal the intrinsic connection between NOx emissions and other influential gaseous species at different positions of the furnace.The finding concludes that the advantage of superfine pulverized coal with regard to NO reduction is more efficient in homogeneous stage rather than heterogeneous stage.Meanwhile,the evolution of HCN and CH_(4)agrees well with each stage of NO reduction,which indicates that these gaseous species are favorable for NO abatement.Eventually,oxygen consumption rate for superfine pulverized coal is relatively faster,conducive to strengthen both homogeneous and heterogeneous NO reduction under CO_(2)reburning condition. | Jun Shen Jiaxun Liu Shengxiang Deng Sha Wang Bin Chen Xiumin Jiang | 2021 | Journal of Environmental Sciences2021，33，6： | 0 |
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