The Difference of the Pulmonary-Artery Pressure of the Migrants from Difference Elevation at the 4636 - 4907 m Altitude

Study Objective： To compare and analyze the changes of the pulmonary-artery pressure of the migrants coming from different elevation in the hypoxic environment of 4636 - 4907 m extreme altitude. To explore the susceptibility to hypoxic pulmonary-artery hypertension （PH） in the subjects from different altitude and profession. Methods： By using Color Doppler Ultmsonography （CDU）, measuring the pulmonary-artery pressure of 207 healthy men, who had continuously being lived and worked at the extreme altitude for more than six months, and then were divided into three groups according to their profession and the altitude of original living place. Results： There was a significant difference in the outcomes of pulmonary-artery pressure from the 3 groups. Conclusions： Altitude of original living place, labor intensity are some of factors that impact the pulmonary-artery pressure of the people who exposure to a hypoxic environment. The pulmonary- artery pressure of person without strenuously physical work experience was more sensitive to hypoxic surroundings than that of labor workers. It was not always the fact at an extreme altitude that the moderate altitude mountaineers were superior to other migrants from a lower altitude or plain. The higher PH was found in the groups of the moderate altitude mountaineers and labor workers. It is unlikely certain that one with PH would surfer from HAPE.     

左氧氟沙星治疗高原地区下呼吸道感染56例

目的：评价左氧氟沙星注射液治疗高原地区下呼吸道感染的疗效及安全性。方法：用0.1％左氧氟沙星注射液200ml静脉滴注bid，7d～l0d为一个疗程；结果：左氧氟沙星注射液治疗有效率89．3％，细菌阴转率90．5％，不良反应发生率10．7％；结论：左氧氟沙星注射液是一种治疗高原地区下呼吸道感染安全有效的抗菌药物。     

高原内燃机车冷却装置的计算方法

介绍高原内燃机车冷却装置的计算方法，得出高原环境下的风扇阻力特性曲线和散热器阻力特性曲线。     

高原训练的基本理论和方法

1高原训练的基本定义和理论 高原训练是提高专项运动能力的一种训练方法，是指在适宜的自然高原地区或人工模拟高原条件下所进行的有针对性的低氧训练。高原训练的理论依据是人体在高原低压缺氧环境下训练，利用高原缺氧和运动双重刺激，使运动员产生强烈的应激反应，以调动体内的机能潜力，从而产生一系列有利于提高运动能力的抗缺氧生理反应。     

高原地区春小麦籽粒增重与小穗位及粒位的关系

本研究从小穗位及粒位角度，探讨了青海高原地区四个春小麦品种（系）籽粒增重过程中的形态和重量变化。结果表明，供试品种（系）中部与上下部小穗籽粒的长宽和干重，或有本质差异，或因环境条件影响而产生差异，或无显著差异，同部位小穗不同粒位间籽粒长度，干重的变化也呈同样状况，因此，我们可以培养新品种，并培养栽培措施影响其发育过程，尽量减小中部与上下部，不同粒位间籽粒的差异，加强其发育过程中的同步性，物质供应的     

论高原地区湿陷性黄土基础处理

青海省位于青藏高原东北部,其东北地区相接黄土高原,而省会西宁市处在青藏高原与黄土高原的连接处,西宁市多处于湿陷性黄土地段,给正常的施工带来了诸多不便。黄土机构松散,压缩性大,湿陷性强,多具有强烈自重湿陷性。     

阀控式密封蓄电池在高原地区的使用情况分析

针对阀控式密封蓄电池在高原地区的使用情况，分析了出现的故障，提出了相应的维护办法和措施。