通信基站通风节能研究

首先简要阐述了通信基站通风节能的现状及意义,然后对通信基站通风能耗情况进行了分析,最后研究了常见的措施对通信基站通风节能的效应。实践证明,该方案对基础运营商在节能减排、降本增效方面具有良好的效果。     

不同强度健身跑对女大学生身体成分和肺通气功能的影响

为提高大学生阳光体育冬季长跑的实效性,探讨不同强度有氧健身跑对女大学生身体成分和肺通气功能的影响,选择北京林业大学60名大二健康女大学生为研究对象,运用文献资料法、教学实验法和数理统计法,进行了16周不同强度组别健身跑实验。结果发现:中、小强度健身跑锻炼对学生身体成分的影响显著,在脂肪百分比、身体质量指数、腰臀比指标均值改变的幅度最大,差异最显著(p0.01);高强度健身跑锻炼对身体成分的影响较小;通过对不同强度组学生两项肺功能指标测试,三种强度的健身跑使学生的肺功能指标均有一定幅度的提高,但中等强度健身跑对学生肺功能影响最大,提高幅度最明显,两项指标均呈现显著性差异(p0.01)。     

瑜伽意念呼吸练习对肺通气和肺活量的影响

呼吸是瑜伽练习的精华和关键,瑜伽呼吸与其他运动项目的呼吸不同,是由意念来调控的。本文分析了瑜伽意念呼吸特点以及瑜伽意念呼吸练习对肺通气和肺活量的影响。     

Energy Performance and Condensation Risk of DCDV System in Subtropical Hong Kong简

The combined use of dry cooling （DC） system and dedicated ventilation （DV） system to decouple cool-ing and dehumidification process for energy efficiency was proposed for subtropical climates like Hong Kong. In this study, the energy performance and condensation risk of the use of DCDV system were examined by analyzing its ap-plication in a typical office building in Hong Kong. Through hour-by-hour simulation using actual equipment per-formance data and realistic building and system characteristics, it was found that with the use of DCDV system, the annual energy consumption could be reduced by 54%in comparison with the conventional system （constant air vol-ume with reheat system）. In respect of condensation risk, it was found that the annual frequency of occurrence of con-densation on DC coil was 35 h. Additional simulations were conducted to examine the influence of different parame-ters on the condensation risk of DCDV system. Measures to ensure condensate-free on DC coil were also discussed.     

论人防工程通风质量监督控制

结合现有的人防工程建设实际,针对人防工程的使用要求,抓好防护通风质量监督控制,确保人防工程质量和使用功能,保证人民生命财产安全,对提高人防工程的战备效益、经济社会效益和环境效益等都具有重要意义.因此,保证人防工程的防护通风质量,是人防工程质量控制管理的重要内容,本文对此分析提出相关意见和建议.     

南京长江过江隧道电力系统节能措施探讨

本文在对南京长江过江隧道的照明、通风、排水系统的现状调研分析的基础上,提出LED照明、节能控制柜、变频控制等节能改造措施,减少能源消耗,降低温室气体排放。     

Interval exercise induces milder respiratory responses compared to continuous exercise

ABSTRACT

The purpose of this study was to explore the respiratory response of acute interval and continuous exercise (CE) of low and high intensity. Fourteen recreational athletes (7 men and 7 women; VO₂max = 35.7 ± 6.1 mlkg^–1min^–1) performed a bout of continuous and a bout of interval exercise (IE) both consisted of 5-min cycling at low intensity [80% of the power output (W) of the predetermined gas exchange threshold (GET) (80%W_GET)] and 5-min cycling at high intensity {W_GET plus the work rate corresponding to 50% of the difference between peak power output (PPO) at oxygen uptake (VO₂max) test and the W_GET [W_GET + 0.50 Δ(PPO – W_GET)]}. CE compared to IE induced significant higher heart rate and ventilation as well as significant higher levels of mouth occlusion pressure for 0.1 s (P_0.1) (P < 0.05) during low and high intensities. Our results indicate that CE stimulates respiration more than IE when the exercise is performed at the same relative intensity.     

夏热冬暖地区教学办公建筑节能设计实践探索——以福建工程学院新校区某建筑设计为例

根据建筑功能要求和当地气候特点,在总体规划和单体设计中,科学合理地确定建筑朝向、平面形状、空间布局、外观体型、间距,选用节能型建筑材料,保证建筑外维护结构的保温隔热等热工特性,应用节能技术措施,尽可能减少建筑物能耗,获得理想的节能效果.     

沿空掘巷综采工作面下行通风防灭火预防

沿空掘巷综采工作面回采期间因受上阶段已采工作面采动影响，工作面轨道顺槽压力集中，巷道变形严重，给生产及安全带来极大威胁，同时，因沿空掘巷巷道与临近采空区中间隔离煤柱宽度很窄，随着工作面的回采工作面上隅角隔离煤柱完全被压酥，工作面上隅角及老塘漏风量增大，给工作面上隅角及老塘防火带来极大难题；针对该工作面的特殊性，采取下行通风方法，解决了该工作面原先钻孔无法施工这一难题和工作面上隅角瓦斯积聚的问题，进一步加快了工作面的推进进度，遏止了工作面回采期间的发火隐患。     

亚热带区塑料温室自然通风的研究

选择了亚热带区塑料温室的自然通风方式, 对通风设置提出了设计方案,从理论上提出了通风孔的面积计算式. 通过试验测试验证通风效果. 试验表明该种温室能有效地达到亚热带地区炎热季节温室通风降温的目的, 为亚热带区塑料温室设计提供参考.