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| 1 | Reliability of paste fill system of the Jinchuan No.2 mine显示文摘Because of poor ground conditions, stoping methods of underhand headings with cemented fill were used in the Jinchuan No. 2 mine, a paste fill system was set up. In order to evaluate the reliability of the new system, investigations and trial running have been done. More than 20 items of modification or improvements related to paste preparation subsystem, pump and pipe subsystem, auto-controlling and monitoring subsystem were finished. The reliability of the paste fill system was analyzed by using the theory of large complex system, and it is useful in reliability study on paste fill system. | Sijing Cai and Changjie ChenCivil and Environmental Engineering School, University of Science and Technology Beijing, Beijing 100083, China (Received 2001-10-24) | 2002 | Journal of University of Science and Technology Beijing2002，9，3： | 3 |
| 2 | Three-dimensional structure of the hepatitis B core antigen particle truncated at residue 154显示文摘The three-dimensional structure of recombinant hepatitis B core antigen(HBcAg) particles truncated at residue 154(HBcAg-154) was determined to 7.8 ? resolution by cryo-electron microscopy(cryoEM) and computer reconstruction.The capsid of HBcAg-154 is mainly constituted by α-helical folds,highly similar to that of HBcAg-149.The C-terminal region between residues 155 and 183 of the core protein is more crucial to the encapsidation of RNA,and the short C-terminal tail of HBcAg-154 results in a nearly empty capsid. | LIU ShuYu HE Jian LI KunPeng DAI AGuang CAI ChangJie ZHANG JingQiang | 2011 | Science China(Life Sciences)2011，54，2： | 2 |
| 3 | Low temperature conditioning reduces postharvest chilling injury in loquat fruit显示文摘 | Chong Cai ChangJie Xu LanLan Shan Xian Li ChunHua Zhou WangShu Zhang Ian Ferguson KunSong Chen | 2006 | Postharvest Biology and Technology2006，，3： | 2 |
| 4 | Characteristics and source apportionment of VOCs measured in Shanghai, China显示文摘 | Changjie Cai Fuhai Geng Xuexi Tie Qiong Yu Junlin An | 2010 | Atmospheric Environment2010，，38： | 2 |
| 5 | Characteristics and source apportionment of VOCs measured in Shanghai, China显示文摘 | Changjie Cai Fuhai Geng Xuexi Tie Qiong Yu Junlin An | 2010 | Atmospheric Environment2010，，38： | 1 |
| 6 | Characteristics and source apportionment of VOCs measured in Shanghai, China显示文摘 | Changjie Cai Fuhai Geng Xuexi Tie Qiong Yu Junlin An | 2010 | Atmospheric Environment2010，，38： | 1 |
| 7 | Validity of fully drained, fully undrained and u – p formulations for modeling a poroelastic half-space under a moving harmonic point load显示文摘 | Li Shi Honglei Sun Yuanqiang Cai Changjie Xu Peng Wang | 2012 | Soil Dynamics and Earthquake Engineering2012，，： | 1 |
| 8 | Characteristics and source apportionment of VOCs measured in Shanghai, China显示文摘 | Changjie Cai Fuhai Geng Xuexi Tie Qiong Yu Junlin An | 2010 | Atmospheric Environment2010，，38： | 1 |
| 9 | Accumulation of lignin in relation to change in activities of lignification enzymes in loquat fruit flesh after harvest显示文摘 | Chong Cai ChangJie Xu Xian Li Ian Ferguson KunSong Chen | 2006 | Postharvest Biology and Technology2006，，2： | 1 |
| 10 | Characteristics of ambient volatile organic compounds (VOCs) measured in Shanghai,China显示文摘 | Cai Changjie Geng Fuhai Tie Xuexi | | 0，，： | 1 |
| 11 | Characteristics and source apportionment of VOCs measured in Shanghai, China显示文摘 | Changjie Cai Fuhai Geng Xuexi Tie Qiong Yu Junlin An | 2010 | Atmospheric Environment2010，，38： | 1 |
| 12 | Vertical distribution of optical and micro-physical properties of ambient aerosols during dry haze periods in Shanghai显示文摘 | Yonghang Chen Qiong Liu Fuhai Geng Hua Zhang Changjie Cai Tingting Xu Xiaojun Ma Hao Li | 2012 | Atmospheric Environment2012，，： | 1 |
| 13 | Characteristics and source apportionment of VOCs measured in Shanghai, China 显示文摘 | CAI Changjie GENG Fuhai TIE Xuexi | 2010 | Atmospheric Environment2010，44，38： | 1 |
| 14 | Torsional response of pile embedded in a poroelastic medium显示文摘 | Yuanqiang Cai Gang Chen Changjie Xu Dazhi Wu | 2006 | Soil Dynamics and Earthquake Engineering2006，，12： | 1 |
| 15 | Low temperature conditioning reduces postharvest chilling injury in loquat fruit显示文摘 | Cai Chong Xu Changjie Shan Lanlan | 2006 | Postharvest Biology and Technology2006，41，3： | 1 |
| 16 | Low temperature conditioning reduces postharvest chilling injury in loquat fruit显示文摘 | CAI Chong XU Changjie SHAN Lanlan | 2006 | Postharvest Biology and Technology2006，41，： | 1 |
| 17 | Characteristics and source apportionment of VOCs measured in Shanghai, China 显示文摘 | Cai Changjie Geng Fuhai Tie Xuexi | 2010 | Atmospheric Environment2010，44，： | 1 |
| 18 | Dynamic impedances and free-field vibration analysis of pile groups in saturated ground 显示文摘 | LI Shi XU Changjie CAI Yuanqiang | 2014 | J Sound Vib2014，333，37： | 1 |
| 19 | Strain gradient induced grain refinement far below the size limit in a low carbon hypoeutectoid steel(0.19 wt%C)via pipe inner surface grinding treatment显示文摘A low carbon hypoeutectoid steel(0.19 wt%C)with proeutectoid ferrite and pearlite dual-components was subjected to surface plastic deformation via pipe inner surface grinding(PISG)at room temperature.The deformation microstructures for each component were systematically characterized along depth,and the patterns of structural evolution toward nanometer regime as well as the governing parameters were addressed.Proeutectoid ferrite grains were refined down to 17 nm,and the pattern covering a length scale of 4–5 orders of magnitude from micron-to nanometer-scale follows:formation of cellular dislocation structure(CDS),elongated dislocation structure(EDS),ultrafine lamellar structure(UFL)and finally the nanolaminated structure(NL).The pearlite experiences the deformation and refinement,and finally the transforming the ultrafine pearlite(UFP)into nanolaminated pearlite(NLP)with the ferrite lamellae as thin as 20 nm.Refinement for both UFL(UFP)and NL(NLP)can be realized via forming novel extended boundaries within ferrite lamellae.A critical lattice curvature of~2.8°is required for forming such extended boundary,corresponding to a minimum strain gradient of 0.25μm^(-1)for a 100 nm-thick lamella.Refinement below size limit(expressed by lamellar thickness d_Tin nm)is correlated with the strain gradient(χ,inμm^(-1))by:d_T=12.5/x.Refinement contributions from strain gradient caused by PISG processing and material heterogeneity were discussed. | Wenqiang Li Yiming Zhao Ning Liu Changji Li Ruiming Ren Dayong Cai Hongwang Zhang | 2021 | Journal of Materials Science & Technology2021，，19： | 0 |
| 20 | Applying Artificial Intelligence(AI)to improve fire response activities显示文摘This research discusses how to use a real-time Artificial Intelligence(AI)object detection model to improve on-site incident command and personal accountability in fire response.We utilized images of firegrounds obtained from an online resource and a local fire department to train the AI object detector,YOLOv4.Consequently,the real-time AI object detector can reach more than ninety percent accuracy when counting the number of fire trucks and firefighters on the ground utilizing images from local fire departments.Our initial results indicate AI provides an innovative method to maintain fireground personnel accountability at the scenes of fires.By connecting cameras to additional emergency management equipment(e.g.,cameras in fire trucks and ambulances or drones),this research highlights how this technology can be broadly applied to various scenarios of disaster response,thus improving on-site incident fire command and enhancing personnel accountability on the fireground. | Ray Hsienho Chang Yan-Tsung Peng Seongchul Choi Changjie Cai | 2022 | Emergency Management Science and Technology2022，2，1： | 0 |
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