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Measuring soil shear strength and impact factors
LEI Jie;ZHANG Guoming;LIU Lianyou;YANG Yanyan;QU Zhiqiang;WEN Haiming;DAI Jiadong;Key Laboratory of Environmental Change and Natural Disasters of MOE;State Key Laboratory of Earth Surface Processes and Resource Ecology;Academy of Disaster Reduction and Emergency Management of Ministry of Civil Affairs and Ministry of Education;Beijing Normal University;College of Ecology and Environmental Sciences;Inner Mongolia Agricultural University;
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Optimizing the number of bicycles in a public renting station
ZHANG Bingqi;ZHOU Yang;LI Qiang;CHEN Jin;College of Resources Science and Technology;Beijing Normal University;Twenty First Century Aerospace Technology Co.Ltd.;State Key Laboratory of Earth Surface Process and Resources Ecology;Beijing Normal University;
..............page:506-511
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