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China´s Lunar Exploration Program ——The Third Milestone for China，s Space Industry

Luan Enjie

Strategic Study of CAE 2006, Volume 8, Issue 10,   Pages 31-36

Abstract:

To explore the moon demonstrates the wisdom and capability of mankind. China ´ s lunar exploration program that features “orbiting”，“landing” and “returning” is the third milestone for China´s space industry. As a developing country, China conducts definite deep space activities under limited conditions, reflecting its strong national strength and symbolizing ability of its space industry.

Keywords： China's space     lunar exploration     Chang'e-1 spacecraft    

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Management innovation of Chang’e-5 project

Frontiers of Engineering Management 2021, Volume 8, Issue 4,   Pages 620-626 doi: 10.1007/s42524-021-0165-1

Keywords： lunar exploration     sample return     systems engineering     project management    

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APPLE SUMO E3 LIGASE MDSIZ1 NEGATIVELY REGULATES DROUGHT TOLERANCE

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 2,

Abstract: MdSIZ1 is a SUMO (small ubiquitin-like modifier) E3 ligase that promotes SUMO binding to substrate proteinsHere, we demonstrate that MdSIZ1 in apple has a negative relationship with drought tolerance MdSIZ1 RNAi transgenic apple trees had a higher survival rate after drought stress.In addition, MdSIZ1 RNAi transgenic plants had a higher net photosynthetic rate duringTaken together, these results indicate that apple MdSIZ1 negatively regulates drought stress by enhancing

Keywords： apple / drought tolerance / gene expression / MdSIZ1    

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APPLE SUMO E3 LIGASE MDSIZ1 NEGATIVELY REGULATES DROUGHT TOLERANCE

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 4,   Pages 662-662 doi: 10.15302/J-FASE-2021408

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Coupled aerobic and anoxic biodegradation for quinoline and nitrogen removals

Ning YAN,Lu WANG,Ling CHANG,Cuiyi ZHANG,Yang ZHOU,Yongming ZHANG,Bruce E. RITTMANN

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 4,   Pages 738-744 doi: 10.1007/s11783-014-0666-9

Abstract: Quinoline (C H N) commonly occurs in wastewaters from the chemical, pharmaceutical, and dyeing industries. As quinoline is biodegraded, nitrogen is released as ammonium. Total-N removal requires that the ammonium-N be nitrified and then denitrified. The objective of this study was to couple quinoline biodegradation with total-N removal. In a proof-of-concept step, activated sludge was sequenced from aerobic to anoxic stages. The ammonium nitrogen released from quinoline biodegradation in the aerobic stage was nitrified to nitrate in parallel. Anoxic biodegradation of the aerobic effluent then brought about nitrogen and COD removals through denitrification. Then, simultaneous quinoline biodegradation and total-N removal were demonstrated in a novel airlift internal loop biofilm reactor (AILBR) having aerobic and anoxic zones. Experimental results showed that the AILBR could achieve complete removal of quinoline, 91% COD removal, and 85% total-N removal when glucose added as a supplemental electron donor once nitrate was formed.

Keywords： Quinoline     biofilm     reactor     biodegradation     denitrification    

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APPLE SUMO E3 LIGASE MDSIZ1 NEGATIVELY REGULATES DROUGHT TOLERANCE

Baohua CHU, Jia SUN, Huan DANG, Ziqing MA, Shuang ZHAO, Qingmei GUAN, Xuewei LI

Frontiers of Agricultural Science and Engineering   Pages 247-261 doi: 10.15302/J-FASE-2021388

Abstract: MdSIZ1 is a SUMO (small ubiquitin-like modifier) E3 ligase that promotes SUMO binding to substrate proteinsTaken together, these results indicate that apple MdSIZ1 negatively regulates drought stress by enhancing

Keywords： apple     drought tolerance     gene expression     MdSIZ1    

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Rdh13 deficiency weakens carbon tetrachloride-induced liver injury by regulating Spot14 and Cyp2e1 expression

Xiaofang Cui, Benting Ma, Yan Wang, Yan Chen, Chunling Shen, Ying Kuang, Jian Fei, Lungen Lu, Zhugang Wang

Frontiers of Medicine 2019, Volume 13, Issue 1,   Pages 104-111 doi: 10.1007/s11684-017-0568-x

Abstract: expression levels of thyroid hormone-inducible nuclear protein 14 (Spot14) and cytochrome P450 (Cyp2e1These data suggested that the alleviated liver damage induced by CCl in mice was caused by Cyp2e1

Keywords： retinol dehydrogenase 13     carbon tetrachloride     acute liver injury     Cyp2e1     Spot14    

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Spacecraft damage infrared detection algorithm for hypervelocity impact based on double-layer multi-target Research Article

Xiao YANG, Chun YIN, Sara DADRAS, Guangyu LEI, Xutong TAN, Gen QIU,yinchun.86416@163.com,chunyin@uestc.edu.cn

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 4,   Pages 571-586 doi: 10.1631/FITEE.2000695

Abstract: To detect spacecraft damage caused by hypervelocity impact, we propose an advanced spacecraft defect

Keywords： Hypervelocity impact damage     Defect detection     Gaussian mixture model     Image segmentation    

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Bioreduction of nitrate in groundwater using a pilot-scale hydrogen-based membrane biofilm reactor

Youneng TANG, Michal ZIV-EL, Chen ZHOU, Jung Hun SHIN, Chang Hoon AHN, Bruce E.

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 3,   Pages 280-285 doi: 10.1007/s11783-010-0235-9

Abstract: A long-term pilot-scale H-based membrane biofilm reactor (MBfR) was tested for removal of nitrate from actual groundwater. A key feature of this second-generation pilot MBfR is that it employed lower cost polyester hollow fibers and still achieved high loading rate. The steady-state maximum nitrate surface loading at which the effluent nitrate and nitrite concentrations were below the Maximum Contaminant Level (MCL) was at least 5.9 g·N·(m·d), which corresponds to a maximum volumetric loading of at least 7.7 kg·N·(m·d) . The steady-state maximum nitrate surface area loading was higher than the highest nitrate surface loading reported in the first-generation MBfRs using composite fibers (2.6 g·N·(m·d)). This work also evaluated the H-utilization efficiency in MBfR. The measured H supply rate was only slightly higher than the stoichiometric H-utilization rate. Thus, H utilization was controlled by diffusion and was close to 100% efficiency, as long as biofilm accumulated on the polyester-fiber surface and the fibers had no leaks.

Keywords： denitrification     groundwater treatment     hydrogen     membrane biofilm reactor (MBfR)     polyester fiber    

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Cloning of human XAF1 gene promoter and assay of its transcription activity in a variety of cell lines

Qiong CHEN, Qing YU, Yuhu SONG, Peiyuan Li, Ying CHANG, Zhijun WANG, Lifeng LIU, Wei WU, Jusheng LIN

Frontiers of Medicine 2009, Volume 3, Issue 2,   Pages 148-152 doi: 10.1007/s11684-009-0032-7

Abstract: To investigate the regulation of tumor suppressor XAF1 gene expression in digestive system cancers, westudied XAF1 gene promoter transcription activity and mRNA level in digestive system cancer cell lines) and human embryonic kidney 293 cells [HEK293 cells]) as controls. 1395-bp-promoter fragment of XAF1The expression of XAF1 mRNA in HEK293 and L02 were significantly higher than that in any of the threecell lines may be due to loss of transcription activity of XAF1 promoter.

Keywords： gene     X-linked inhibitor of apoptosis protein associated factor-1 (XAF1)     promoter     transcription regulation    

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Artificial intelligence in impact damage evaluation of space debris for spacecraft Editorial

Weimin BAO, Chun YIN, Xuegang HUANG, Wei YI, Sara DADRAS,chunyin@uestc.edu.cn,kusso@uestc.edu.cn,s_dadras@ieee.org

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 4,   Pages 511-514 doi: 10.1631/FITEE.2220000

Abstract: To ensure the safe operation of spacecraft and the completion of space missions, it is necessary to detectdamage detection and evaluation. 1.and models can be extended by, e.g., preprocessing the actual input test data to obtain better algorithmto guide the space debris protection design of spacecraft.of the spacecraft. 5.
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Damage quantitative assessment of spacecraft in a large-size inspection Research Article

Kuo ZHANG, Jianliang HUO, Shengzhe WANG, Xiao ZHANG, Yiting FENG,huoliaang@163.com

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 4,   Pages 542-554 doi: 10.1631/FITEE.2000733

Abstract: To ensure the safety and reliability of spacecraft during multiple space missions, it is necessary toconduct in-situ nondestructive detection of the spacecraft to judge the damage caused by the of micrometeoroids

Keywords： Hypervelocity impact     Damage information extraction     Image mosaicking     Damage localization     Quantitative assessment    

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Fused-like angles: replacement for roll-pitch-yaw angles for a six-degree-of-freedom grating interferometer Research Article

Di Chang, Pengcheng Hu, Jiubin Tan,di.chang@hit.edu.cn,hupc@hit.edu.cn,jbtan@hit.edu.cn

Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 12,   Pages 1551-1684 doi: 10.1631/FITEE.2000432

Abstract: is important in a six-degree-of-freedom but only a few studies have focused on this topic. Roll-pitch-yaw angles, widely used in aviation, navigation, and robotics, are now being brought to the field of multi-degree-of-freedom interferometric measurement. However, the roll-pitch-yaw angles are not the exact definitions the metrologists expected in interferometry, because they require a certain sequential order of rotations and may cause errors in describing complicated rotations. The errors increase as the tip and tilt angles of the grating increase. Therefore, a replacement based on fused angles in robotics is proposed and named “.” The are error-free, so they are more in line with the definitions in grating interferometry and more suitable for s. have already been used in research on the kinematic model and decoupling algorithm of the six-degree-of-freedom .

Keywords： 无偏溯源角；光栅干涉仪；六自由度测量；角度表达方法    

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Studies on Precise Spacecraft Navigation and Positioning Using GPS

Xiang Kaiheng,Qu Guangji

Strategic Study of CAE 2004, Volume 6, Issue 1,   Pages 86-91

Abstract: carrier phase & pseudorange integrated dynamic orbit determination (CPPIDOD) for low earth orbit spacecraft

Keywords： spacecraft     navigation     GPS     carrier phase     Kalman filtering    

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Dynamics Modeling of Spacecraft with Composite Flexible Structures

Qu Guangji,Cheng Daosheng

Strategic Study of CAE 1999, Volume 1, Issue 2,   Pages 52-56

Abstract:

It is a conventional method to build dynamic models of flexible spacecraft with hybrid coordinatesThis kind of modeling has gotten a great success both in theory and practice to spacecraft with rigidHowever, modern spacecraft are becoming much bigger and more and more complicated.Their developing trend in structure is： 1.

It is impossible to build the dynamic equations of a spacecraft by its flexible modes, when

Keywords： spacecraft     composite flexible structure     dynamics of flexible structures     hybrid coordinate method    

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Title Author Date Type Operation

China´s Lunar Exploration Program ——The Third Milestone for China，s Space Industry

Luan Enjie

Journal Article

Management innovation of Chang’e-5 project

Journal Article

APPLE SUMO E3 LIGASE MDSIZ1 NEGATIVELY REGULATES DROUGHT TOLERANCE

Journal Article

APPLE SUMO E3 LIGASE MDSIZ1 NEGATIVELY REGULATES DROUGHT TOLERANCE

Journal Article

Coupled aerobic and anoxic biodegradation for quinoline and nitrogen removals

Ning YAN,Lu WANG,Ling CHANG,Cuiyi ZHANG,Yang ZHOU,Yongming ZHANG,Bruce E. RITTMANN

Journal Article

APPLE SUMO E3 LIGASE MDSIZ1 NEGATIVELY REGULATES DROUGHT TOLERANCE

Baohua CHU, Jia SUN, Huan DANG, Ziqing MA, Shuang ZHAO, Qingmei GUAN, Xuewei LI

Journal Article

Rdh13 deficiency weakens carbon tetrachloride-induced liver injury by regulating Spot14 and Cyp2e1 expression

Xiaofang Cui, Benting Ma, Yan Wang, Yan Chen, Chunling Shen, Ying Kuang, Jian Fei, Lungen Lu, Zhugang Wang

Journal Article

Spacecraft damage infrared detection algorithm for hypervelocity impact based on double-layer multi-target

Xiao YANG, Chun YIN, Sara DADRAS, Guangyu LEI, Xutong TAN, Gen QIU,yinchun.86416@163.com,chunyin@uestc.edu.cn

Journal Article

Bioreduction of nitrate in groundwater using a pilot-scale hydrogen-based membrane biofilm reactor

Youneng TANG, Michal ZIV-EL, Chen ZHOU, Jung Hun SHIN, Chang Hoon AHN, Bruce E.

Journal Article

Cloning of human XAF1 gene promoter and assay of its transcription activity in a variety of cell lines

Qiong CHEN, Qing YU, Yuhu SONG, Peiyuan Li, Ying CHANG, Zhijun WANG, Lifeng LIU, Wei WU, Jusheng LIN

Journal Article

Artificial intelligence in impact damage evaluation of space debris for spacecraft

Weimin BAO, Chun YIN, Xuegang HUANG, Wei YI, Sara DADRAS,chunyin@uestc.edu.cn,kusso@uestc.edu.cn,s_dadras@ieee.org

Journal Article

Damage quantitative assessment of spacecraft in a large-size inspection

Kuo ZHANG, Jianliang HUO, Shengzhe WANG, Xiao ZHANG, Yiting FENG,huoliaang@163.com

Journal Article

Fused-like angles: replacement for roll-pitch-yaw angles for a six-degree-of-freedom grating interferometer

Di Chang, Pengcheng Hu, Jiubin Tan,di.chang@hit.edu.cn,hupc@hit.edu.cn,jbtan@hit.edu.cn

Journal Article

Studies on Precise Spacecraft Navigation and Positioning Using GPS

Xiang Kaiheng,Qu Guangji

Journal Article

Dynamics Modeling of Spacecraft with Composite Flexible Structures

Qu Guangji,Cheng Daosheng

Journal Article