研究了苏州城市绿地系统中的3种节约型植物树群类型的6个研究样本的温度变化影响因素及其热能效应评估方法。结果表明,2月、8月3种类型树群的外环境温度对其树群内环境温度影响的相关系数(r)和回归系数(t)都达到显著或极显著水平,二者...研究了苏州城市绿地系统中的3种节约型植物树群类型的6个研究样本的温度变化影响因素及其热能效应评估方法。结果表明,2月、8月3种类型树群的外环境温度对其树群内环境温度影响的相关系数(r)和回归系数(t)都达到显著或极显著水平,二者存在显著或极显著正相关和直线回归关系;不同月树群内外环境的光照度对树群内环境温度影响的相关系数和回归系数明显不同,说明树群外环境温度、树群内外环境光照度对3种类型树群的内环境温度影响不同。研究样本树群8月和2月的降温热能效应折算净总电量为13 749.975 k W·h;树群平均单位面积降温热能效应折算净总电量为1.854 k W·h/m2。苏州市古城区面积约926 005.718 4 m2的城市绿地系统中的节约型树群,8月和2月降温热能效应折算净总电量为430 704.373 k W·h。展开更多
In HFCVD system the substrate temperature is a key factor which deeply affects the quality of diamond films. Th e magnitude and the variation of the substrate temperature must be limited in a suitable range to depo...In HFCVD system the substrate temperature is a key factor which deeply affects the quality of diamond films. Th e magnitude and the variation of the substrate temperature must be limited in a suitable range to deposit diamond films of uniform thickness over large areas. In this paper, the hot filament parameters are investigated on the basi s of GAs to realize a good substrate temperature profile. Computer simulations d emonstrate that on parameters optimized by GAs a uniform substrate temperatur e field can be formed over a relatively large circle area with R s=10 cm.展开更多
Based on the UCG(underground coal gasification) theory, the “three zones” which are oxidization zone, reduction zone, and drying zone, were divided; physical and chemical properties of each zone were analyzed. Facto...Based on the UCG(underground coal gasification) theory, the “three zones” which are oxidization zone, reduction zone, and drying zone, were divided; physical and chemical properties of each zone were analyzed. Factors, such as temperature, rate of water pouring, quantity of air blast, thickness of coal seam, and the operation pressure were discussed. Among the influencing factors, the temperature is the most important one.展开更多
The main factors that affect infrared surveying in roadway include that property of rock, electromechanical equipments running, environmental temperature, hydrogeology and support material etc. This paper sums up the ...The main factors that affect infrared surveying in roadway include that property of rock, electromechanical equipments running, environmental temperature, hydrogeology and support material etc. This paper sums up the expression features of these disturbing factor through theoretical analysis and actual measurement contrasts and considers that some tunnel section does not suit to go on infrared survey, for instance, soft rock meets water to expanse, and surround rock has obviously pouring water. The basic methods had made evading disturbing of electromechanical equipments, environmental temperature and protect material etc to become possible. It is helpful that offers infrared surveying technical service for production safety better in roadway.展开更多
Different from the conventional synthesis methods and substrates, we designed a brand new method for synthesizing amides with platinum nanowires as catalysts and tert-butylhydroperoxide(TBHP) as the oxidant. Influence...Different from the conventional synthesis methods and substrates, we designed a brand new method for synthesizing amides with platinum nanowires as catalysts and tert-butylhydroperoxide(TBHP) as the oxidant. Influence of factors, such as the catalyst, solvents, and the reaction temperature, were studied to determine the optimal reaction conditions. In addition, we explored the substrate generality and observed excellent yields.展开更多
文摘研究了苏州城市绿地系统中的3种节约型植物树群类型的6个研究样本的温度变化影响因素及其热能效应评估方法。结果表明,2月、8月3种类型树群的外环境温度对其树群内环境温度影响的相关系数(r)和回归系数(t)都达到显著或极显著水平,二者存在显著或极显著正相关和直线回归关系;不同月树群内外环境的光照度对树群内环境温度影响的相关系数和回归系数明显不同,说明树群外环境温度、树群内外环境光照度对3种类型树群的内环境温度影响不同。研究样本树群8月和2月的降温热能效应折算净总电量为13 749.975 k W·h;树群平均单位面积降温热能效应折算净总电量为1.854 k W·h/m2。苏州市古城区面积约926 005.718 4 m2的城市绿地系统中的节约型树群,8月和2月降温热能效应折算净总电量为430 704.373 k W·h。
文摘In HFCVD system the substrate temperature is a key factor which deeply affects the quality of diamond films. Th e magnitude and the variation of the substrate temperature must be limited in a suitable range to deposit diamond films of uniform thickness over large areas. In this paper, the hot filament parameters are investigated on the basi s of GAs to realize a good substrate temperature profile. Computer simulations d emonstrate that on parameters optimized by GAs a uniform substrate temperatur e field can be formed over a relatively large circle area with R s=10 cm.
文摘Based on the UCG(underground coal gasification) theory, the “three zones” which are oxidization zone, reduction zone, and drying zone, were divided; physical and chemical properties of each zone were analyzed. Factors, such as temperature, rate of water pouring, quantity of air blast, thickness of coal seam, and the operation pressure were discussed. Among the influencing factors, the temperature is the most important one.
文摘The main factors that affect infrared surveying in roadway include that property of rock, electromechanical equipments running, environmental temperature, hydrogeology and support material etc. This paper sums up the expression features of these disturbing factor through theoretical analysis and actual measurement contrasts and considers that some tunnel section does not suit to go on infrared survey, for instance, soft rock meets water to expanse, and surround rock has obviously pouring water. The basic methods had made evading disturbing of electromechanical equipments, environmental temperature and protect material etc to become possible. It is helpful that offers infrared surveying technical service for production safety better in roadway.
基金supported by the National Natural Science Foundation of China (21373006, 51402203)the Priority Academic Program Development of Jiangsu Higher Education Institutions
文摘Different from the conventional synthesis methods and substrates, we designed a brand new method for synthesizing amides with platinum nanowires as catalysts and tert-butylhydroperoxide(TBHP) as the oxidant. Influence of factors, such as the catalyst, solvents, and the reaction temperature, were studied to determine the optimal reaction conditions. In addition, we explored the substrate generality and observed excellent yields.
