诱发地质灾害的可能性因素分析——以郑州—少林寺高速公路工程建设为例

针对人类工程经济活动是诱发地质灾害重要的可能性因素这一特点,结合郑州—少林寺高速公路工程建设相关的地质、勘查成果,从工程地质的角度对该工程遭受区域地质灾害危险性影响的可能性因素作出分析和评价。

上尿路结石碎石术中置入聚氨酯输尿管支架发生结壳的可能性因素研究

目的探讨上尿路结石术中置入聚氨酯输尿管支架管发生结壳的可能因素。方法收集从2016年9月—2020年3月在上海市静安区中心医院行上尿路结石手术的56例患者的临床和随访资料,均置入聚氨酯输尿管支架。所有尿路结石病例输尿管支架置管时间均不超过6周,根据是否产生输尿管支架管结壳将患者分为结壳组(34例)和无结壳组(22例)。采用卡方、Fisher精确概率检验和假设检验统计分析方法鉴别两组中影响结壳产生的可能风险因素。结果经对相关临床指标进行统计分析,发现支架管留置时间长、24 h尿钙值高、支架有细菌定植的患者更容易发生支架管结壳,差异有统计学意义(P<0.05);两组患者的年龄、性别差异无统计学意义。结论支架管留置时间延长、尿钙值增高和支架管细菌定植是促使支架管易于产生结壳的可能因素。

风险评估技术在大型球罐安全管理中的应用

分析大型球罐风险可能性影响因素和风险后果影响因素,并应用层次分析法对其进行量化计算,以确定大型球罐的风险等级。在此基础上对影响高风险的各方面因素进行分析,提出降低风险措施,从而强化对大型球罐的安全管理。

China' s Fundamental Research in Energy Utilizations and Environment

The progress in the science of energy utilizations will act crucial effect on the developments of energy science and technology, which will then promote social and economical developments and fulfill requirements for the national strategic objectives. For the sake of sustainable development, a harmonious blend of energy utilizations and environment considerations will become one of the vital topics in the future research area of energy science. It is suggested that clean and high-efficiency utilization of traditional or fossil energy resources, fundamental investigations on the energy and environment theory, renewable energy utilizations, and the development of nuclear energy are selected as priority research areas during the period of the Tenth Five-year Plan of China, according to the development trend of the world energy science and the research background of Chinese energy science, It is expected to promote the interdisciplinary investigations in the science of energy utilizations and provide scientific and technological supports for the development of related advanced high technologies,