我国绿色技术贸易发展现状及对策研究

通过分析进行绿色技术贸易的背景、绿色技术贸易的内涵以及我国绿色技术贸易发展的现状,在此基础上提出了一些对策建议。     

基于STIRPAT模型的低碳经济策略分析——以辽宁省为例

随着社会经济的发展,大量温室气体的排放已引起严重的气候变化。辽宁省积极响应国家政策,发展低碳经济。采用1989～2009年辽宁省相关的统计数据,对STIRPAT模型进行了扩展分析,应用EViews6.0软件并使用时间序列分析方法,研究了辽宁省碳排放量的影响因素,并提出了相应的减排策略及建议。     

Electrical and band-gap properties of amorphous zinc-indium-tin oxide thin films

Zinc-indium-tin oxide (ZITO) films were grown by pulsed-laser deposition.Three different material compositions were investigated:ZITO-30,ZITO-50 and ZITO-70 in which 30％,50％ and 70％,respectively,of the...     

Effect of temperature on the flight activity of culicids in Buenos Aires City,Argentina

Daily temperature could determine mosquito activity and competence for transmitting arboviruses. This work aims to determine the seasonal occurrence of mosquito species and to characterize their flight activity in relation to the mean daily temperature in Buenos Aires, Argentina (March 1998 to April 2001). The proportion of capture events for each culicid species throughout all seasons and thermal ranges, obtained by classifying daily mean temperatures corresponding to every capture event, was compared using a test for multiple independent proportions. Twenty-three species from six genera were captured and two groups could be identified: group 1, species captured in all thermal ranges and group 2, species not captured below 11°C. Flight activity of the different species would be affected by daily and seasonal mean temperature. Species of group 1, which are present throughout the year, seem to be triggered above a certain threshold of temperature, regardless of the season. Group 2 species would display a seasonal activity pattern.     

微火焰温度场的自动扫描微型热电偶测量

探索了一种用微型热电偶自动点扫描测量微火焰温度场的方法,从理论上分析了热电偶大小与热气流速度对测温误差的影响,并以3个直列预混微火焰为对象,通过实验详细考察了自动扫描热电偶的数据采集时间间隔和热电偶移动速度对火焰温度测量的影响.结果表明:当丝径小于50μm时,微型热电偶测量的火焰温度误差将小于0.6％;实验中采用丝径50 μm的R型微型热电偶,当温度数据采集时间间隔为0.1s和热电偶移动速度为1.82 ～ 4.22 mm/s时,自动扫描测得的火焰温度与手动单点长时间停留热电偶测得的温度场一致;微型热电偶自动扫描方法可实现快速、准确的微火焰温度场测量.     

电刺激腹中隔区对IL-1_β作用下兔POAH温敏神经元放电特性的影响

目的 :进一步探讨中枢解热机理。方法 :采用微电极细胞外记录 ,观察在致热原IL - 1β作用下电刺激兔腹中隔区 (VSA)对视前区 -下丘脑前部 (POAH)温度敏感神经元放电特性的影响。结果 :(1)IL - 1β 使热敏神经元放电频率减少时 ,电刺激腹中隔区可明显降低POAH热敏神经元的温度敏感系数。 (2 )IL - 1β 使冷敏神经元放电频率增加时 ,电刺激腹中隔区可增加POAH冷敏神经元的温度敏感系数。结论 :作为负调节中枢的VSA可通过影响致热原作用下POAH区温敏神经元放电特性而解热     

低比转速离心叶轮内部流动的数值计算

针对目前准三维方法在低比转速离心叶轮的流场计算中的结果不太令人满意的现实情况 ,将奇点分布法用于该领域的计算 ,并经实例计算验证了该方法的可行性 ,且在计算过程中显示出该方法的简单、快捷和结果精确程度高的特点     

超导和准光铁氧体器件的新近发展(一)--铁氧体超导器件的现状与发展

本文综述了微波铁氧体超导器件和毫米波应用的准光环行器的新近发展。这些超小型化具有高性能的高温超导（ＨＴＳ）铁氧体器件和高功率准光环行器的试验成功，将对微波单片集成、混合平面集成和毫米波雷达系统的发展产生重要的影响。将分二部分对上述内容加以叙述。     

当量温差对砌体结构房屋墙体开裂的影响

通过温度变化引起砌体结构房屋墙体开裂的调查分析，得出了当量温差是引起墙体开裂的根本原因，以应力分析为基础，提出了防止墙体开裂的一些措施．     

Slack-nibbling battery-aware task scheduling

Dynamic voltage scaling (DVS) is an efficient approach to maximize the battery life of portable devices. A novel overall planning strategy (OPS II) balancing slack supply and demand for DVS is proposed. An OPS II-based slack-nibbling overall planning strategy (SNOPS) algorithm is also proposed, which iteratively nibbles slacks for appropriate tasks selected by an overall planning dynamic priority function to perform DVS until the slack is exhausted and an optimum voltage setting is obtained. For a high-load task set, SNOPS manages to recover battery overload while maintaining schedulability. For random variable-load task sets, SNOPS achieves a saving of 29.51% battery capacity on average, the suboptimal gap is 27.84% narrower than that of our previously proposed OPS-based algorithm, and 92.10% narrower than that of the algorithm proposed by Chowdhury et al. Results indicate that OPS II manages to save battery to various extents while maintaining schedulability, and demonstrates good load compatibility and close-to-optimal performance on average. Biography: GAO Xun(1981–), male, Ph.D. candidate, research direction: embedded system, power optimization.