[ Objective] The research aimed to analyze hydrological regimes of the medium and small rivers in Hami of Xinjiang. [ Method] According to actual observation data at Toudaogou hydrological station during 1956 -2010, c...[ Objective] The research aimed to analyze hydrological regimes of the medium and small rivers in Hami of Xinjiang. [ Method] According to actual observation data at Toudaogou hydrological station during 1956 -2010, climate, runoff, flood, sediment and water quality in the basin were analyzed. [ Result] Runoff in Toudaogou River was mainly from bedrock fissure water and rainfall, and depended on temperature and precipi- tation in the catchment zone. Runoff in Toudaogou River had very big change during the year. Runoff in whole year mainly concentrated during April -June, which occupied 57.9% of annual runoff. Flood in Toudaogou basin was divided into spring and summer flood from time, and snowmelt and rainstorm flood from type. Sediment load was related to terrain, gradient, runoff, precipitation, flood and process. Suspended sediment load at Toudaogou hydrological station had close relationship with the annual maximum flow capacity of flood peak, and related coefficient was 0.917. [ Conclusion] Hydrological regime in Toudaogou basin basically represented corresponding hydrological information of rivers without glacier water supply in Hami even whole western arid zone of China. The research could provide theoretical basis for scientifically using water resources of the medium and small rivers in the zone.展开更多
目的:采用Meta分析法分析依托咪酯复合异丙酚麻醉方案对老年患者行无痛消化内镜检查期间低血压、胃肠道反应等不良反应的影响。方法:检索维普、万方、中国知网、PubMed、EMbase、Web of science、Cochrane图书馆等国内外数据库自建库至2...目的:采用Meta分析法分析依托咪酯复合异丙酚麻醉方案对老年患者行无痛消化内镜检查期间低血压、胃肠道反应等不良反应的影响。方法:检索维普、万方、中国知网、PubMed、EMbase、Web of science、Cochrane图书馆等国内外数据库自建库至2022年4月发表的关于依托咪酯复合异丙酚麻醉方案应用于老年患者无痛胃镜检查中的随机对照试验(RCT)。采用Cochrane质量评估量表对筛选出的文献进行质量评价,并采用Review Manager5.3对文献内容进行统计分析。结果:共有5项RCTs、908例患者纳入本Meta分析。分析的结果显示,与单用异丙酚组患者相比,依托咪酯联用异丙酚组患者胃肠道反应的发生率更低(RR=0.31,95%CI:0.14~0.66,P=0.003),其低血压的发生率也更低(RR=0.06,95%CI:0.02~0.18,P<0.00001)。结论:在无痛消化内镜检查中应用依托咪酯复合异丙酚麻醉方案能有效减少老年患者的胃肠道反应、低血压等不良反应,是一种更加舒适、更具安全性的麻醉方法。展开更多
文摘[ Objective] The research aimed to analyze hydrological regimes of the medium and small rivers in Hami of Xinjiang. [ Method] According to actual observation data at Toudaogou hydrological station during 1956 -2010, climate, runoff, flood, sediment and water quality in the basin were analyzed. [ Result] Runoff in Toudaogou River was mainly from bedrock fissure water and rainfall, and depended on temperature and precipi- tation in the catchment zone. Runoff in Toudaogou River had very big change during the year. Runoff in whole year mainly concentrated during April -June, which occupied 57.9% of annual runoff. Flood in Toudaogou basin was divided into spring and summer flood from time, and snowmelt and rainstorm flood from type. Sediment load was related to terrain, gradient, runoff, precipitation, flood and process. Suspended sediment load at Toudaogou hydrological station had close relationship with the annual maximum flow capacity of flood peak, and related coefficient was 0.917. [ Conclusion] Hydrological regime in Toudaogou basin basically represented corresponding hydrological information of rivers without glacier water supply in Hami even whole western arid zone of China. The research could provide theoretical basis for scientifically using water resources of the medium and small rivers in the zone.
文摘目的:采用Meta分析法分析依托咪酯复合异丙酚麻醉方案对老年患者行无痛消化内镜检查期间低血压、胃肠道反应等不良反应的影响。方法:检索维普、万方、中国知网、PubMed、EMbase、Web of science、Cochrane图书馆等国内外数据库自建库至2022年4月发表的关于依托咪酯复合异丙酚麻醉方案应用于老年患者无痛胃镜检查中的随机对照试验(RCT)。采用Cochrane质量评估量表对筛选出的文献进行质量评价,并采用Review Manager5.3对文献内容进行统计分析。结果:共有5项RCTs、908例患者纳入本Meta分析。分析的结果显示,与单用异丙酚组患者相比,依托咪酯联用异丙酚组患者胃肠道反应的发生率更低(RR=0.31,95%CI:0.14~0.66,P=0.003),其低血压的发生率也更低(RR=0.06,95%CI:0.02~0.18,P<0.00001)。结论:在无痛消化内镜检查中应用依托咪酯复合异丙酚麻醉方案能有效减少老年患者的胃肠道反应、低血压等不良反应,是一种更加舒适、更具安全性的麻醉方法。
