On August 8, 2017, a Ms 7.0 earthquake occurred 5 km to the west of Jiuzhaigou National Park, causing 25 deaths and injuring 525. The objective of this study was to explore the seismogenic fault of the earthquake and ...On August 8, 2017, a Ms 7.0 earthquake occurred 5 km to the west of Jiuzhaigou National Park, causing 25 deaths and injuring 525. The objective of this study was to explore the seismogenic fault of the earthquake and tectonic dynamics of the source rupture. Field investigations, radon activity tests, remote sensing interpretations, and geophysical data analyses were carried out immediately after the earthquake. The Jiuzhaigou earthquake occurred at the intersection of the northern margin of the Minshan uplift belt and the south part of the Wenxian–Maqin fault in the south margin of the West Qinling geosyncline. There are two surface rupture zones trending northwest(NW), which are ground coseismic ruptures caused by concealed earthquake faults. The rupture on the southwest is the structure triggering the earthquake, along the Jiuzhaitiantang–Epicenter–Wuhuahai. The other one on the northeast(Shangsizhai–Zhongcha–Bimang) is a reactivation and extension of the secondary fault trending NW. The source rupture of this earthquake is a strike-slipshear fracture associated with the fault plane trending NW 331° and steeply dipping 75°, which is continuously expanding at both ends. The tectonic dynamics process of the source rupture is that the "Jiuzhaigou protrusion" is left-lateral sheared along the seismogenic fault in the NW direction. Finally, the Maqin fault and the arc fault system at the top of the "Wenxian protrusion" will be gradually broken through sometime in far future, as well as earthquaketriggered landslides will be further occurred along the narrow corridor between the seismogenic faults. The research results revealed the basic geological data and tectonic dynamic mechanism in this earthquake.展开更多
The paper analyzes five Finnish case companies to study the sourcing process from China. A framework of a six-stage sourcing process is developed that includes finding and choosing suppliers, making contracts and orde...The paper analyzes five Finnish case companies to study the sourcing process from China. A framework of a six-stage sourcing process is developed that includes finding and choosing suppliers, making contracts and orders, performing production and quality control, planning logistics, inspecting purchases, and developing supply chain management. Each stage describes the activities from the channels of seeking suppliers to cooperative areas for further development. The case study illustrates the practices of sourcing from China are actually quite similar to the sourcing process in other countries. The study highlights that quality control is the core issue in sourcing from China. Moreover, the difference in understanding sustainable quality affects supplier screening and quality control. Close cooperation on quality control is the key to managing the supply chain to increase competitive advantage through sourcing from China.展开更多
基金financially supported by the Open Research Fund from the Key Laboratory of Mountain Hazards and Earth Surface Process(Chinese Academy of Sciences)(Grant No.KLMHESP-17-06)the Independent Research Fund from the State Key Laboratory of Geohazard Prevention and Geoenvironment Protection(Chengdu University of Technology)(Grant No.40100-00002219)
文摘On August 8, 2017, a Ms 7.0 earthquake occurred 5 km to the west of Jiuzhaigou National Park, causing 25 deaths and injuring 525. The objective of this study was to explore the seismogenic fault of the earthquake and tectonic dynamics of the source rupture. Field investigations, radon activity tests, remote sensing interpretations, and geophysical data analyses were carried out immediately after the earthquake. The Jiuzhaigou earthquake occurred at the intersection of the northern margin of the Minshan uplift belt and the south part of the Wenxian–Maqin fault in the south margin of the West Qinling geosyncline. There are two surface rupture zones trending northwest(NW), which are ground coseismic ruptures caused by concealed earthquake faults. The rupture on the southwest is the structure triggering the earthquake, along the Jiuzhaitiantang–Epicenter–Wuhuahai. The other one on the northeast(Shangsizhai–Zhongcha–Bimang) is a reactivation and extension of the secondary fault trending NW. The source rupture of this earthquake is a strike-slipshear fracture associated with the fault plane trending NW 331° and steeply dipping 75°, which is continuously expanding at both ends. The tectonic dynamics process of the source rupture is that the "Jiuzhaigou protrusion" is left-lateral sheared along the seismogenic fault in the NW direction. Finally, the Maqin fault and the arc fault system at the top of the "Wenxian protrusion" will be gradually broken through sometime in far future, as well as earthquaketriggered landslides will be further occurred along the narrow corridor between the seismogenic faults. The research results revealed the basic geological data and tectonic dynamic mechanism in this earthquake.
文摘The paper analyzes five Finnish case companies to study the sourcing process from China. A framework of a six-stage sourcing process is developed that includes finding and choosing suppliers, making contracts and orders, performing production and quality control, planning logistics, inspecting purchases, and developing supply chain management. Each stage describes the activities from the channels of seeking suppliers to cooperative areas for further development. The case study illustrates the practices of sourcing from China are actually quite similar to the sourcing process in other countries. The study highlights that quality control is the core issue in sourcing from China. Moreover, the difference in understanding sustainable quality affects supplier screening and quality control. Close cooperation on quality control is the key to managing the supply chain to increase competitive advantage through sourcing from China.
