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Elementary Research on Activity Behavior of the Crust in Funan-Huoqiu Area, Southern Border of the North China Active Block Region
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作者 Yao Daquan Liu Jiacan 《Earthquake Research in China》 2005年第4期371-380,共10页
The Funan-Huoqiu area is located in the border tectonic belt between the North China and South China active block regions. By means of seismological and geological surveys and synthetic analysis, evidences of tectonic... The Funan-Huoqiu area is located in the border tectonic belt between the North China and South China active block regions. By means of seismological and geological surveys and synthetic analysis, evidences of tectonic deformation in lower intensity have been found in the area since Late Pleistocene, where small earthquakes are distributed linearly along the main faults, conjugate shear joints are developed in the Upper Pleistocene nearby the faults. In the south of the studied region, fissures with different lengths, widths and directions occurred successively in Gushi, Huoqiu, Funan and other places of the area, in the 1970’s, and the direction of the fissures is approximately consistent with that of the Feizhong fault and Wanglaorenji fault. The authors hold that the clustering of small earthquakes, the conjugate shear joints developed in the Upper Pleistocene, the crumpled deformation of materials on fault plane, and the development of modern surface fissures in the area all reflect that the energy in the crust was slowly released, and that the weak deformation took place in corresponding faults. There was only one destructive earthquake taking place in the area (the Jiangkouji {M_S43/4} earthquake). Altogather, there has been weak activity in the area since the Late Quaternary, and it is mainly shown as a creep-slip. 展开更多
关键词 North China Active block region Funan- Huoqiu Activity behavior Activity level
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Experience of Clinical Application of Head Region Block in Craniotomy
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作者 ZHANG Yongguo HE Kai +2 位作者 LONG Mingbo ZHENG Zhenping JI Kuiquan 《外文科技期刊数据库(文摘版)医药卫生》 2021年第10期1080-1083,共6页
Objective: to observe the clinical value of head block in patients undergoing craniotomy. Methods: 50 patients who received craniotomy in our hospital were selected and randomly divided into observation group and cont... Objective: to observe the clinical value of head block in patients undergoing craniotomy. Methods: 50 patients who received craniotomy in our hospital were selected and randomly divided into observation group and control group. The number of patients in each group was 25. Patients in the control group were treated with intravenous general anesthesia. In the observation group, head block anesthesia was added, and the application value of different anesthesia methods in the two groups was compared. Results: the final results showed that the patients in the observation group who were treated with head block anesthesia had better anesthesia effect, the pain degree of the patients in different time periods after operation was lighter, the dosage of propofol and anesthetic used by the patients in anesthesia was also significantly reduced, the incidence of adverse reactions and postoperative complications in the end was lower, the satisfaction score of the patients and their families on the treatment was higher, and the results of each index were better than that of the control group. There was statistical significance in the difference of data comparison between the groups (P < 0.05). Conclusion: the addition of head block anesthesia in clinical craniotomy patients can better improve the anesthetic effect and safety of clinical surgery, minimize the degree of surgical pain, and promote the recovery efficiency of patients after surgery. 展开更多
关键词 CRANIOTOMY surgical anesthesia head region block value experience
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The Evolutionary Characteristics of Seismic Activity in the Sichuan-Yunnan Region,China
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作者 Lan Congxin,Guo Xin and Zhang YafangSeismological Bureau of Beijing Municipality,Beijing 100080,China 《Earthquake Research in China》 2002年第2期138-146,共9页
Based on the earthquake activity characteristics of the diamond block in the Sichuan- Yunnan region and by using the method of the meso-scope damage dynamics and damage evolution, we studied the damage evolution proce... Based on the earthquake activity characteristics of the diamond block in the Sichuan- Yunnan region and by using the method of the meso-scope damage dynamics and damage evolution, we studied the damage evolution process for moderately strong earthquakes along two seismic belts. The original combination patterns of all the units which illuminate the changes from stable state to destroyed state are given. All these patterns can direct the earthquake prediction practice in this region. 展开更多
关键词 Diamond block in the Sichuan-Yunnan region Damage evolution Evolutionary array Original combination patterns of all the units
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