The characteristics of the microclimate of mountain in western part of zhejiang province of china were analyzed by using the spatial series , that is from wuling square in hangzhou , donghu campus in zhejiang forest college to evergreen broadleaved forest in tianmu mountain , and from phyllostachys edulis community , phoebe sheareri community to crptomeria fortunei community respectively 摘要采取两个空间序列,即杭州武林广场东湖校区天目山常绿阔叶林和天目山毛竹林紫楠林柳杉林,研究海拔和森林植被类型驱动下山地小气候的日进程。
The thermal - wet comfort proprties of textiles under the conditions that the environment temperature is higher than that of human body ( called “ reverse temperature field ” ) are examined in this paper . four quanties ( i . e . equivalent thermal resistance , thermal resistance , resistance to water vapour transmission and air permeability ) were suggested as the physical indexes of thermal - wet comfort properties of textiles under this condition . their special meanings under this condition were explained also . the colthing microclimate testing meter was used to determine the indexes of seven different kinds of textiles . the statistical analysis was applied to analyse the relationship between these indexes and the results from wearing - clothing test . some elementary results were obtained 研究了在环境温度高于人体体表温度(称逆温差)条件下,服装用织物的热湿舒适性能,提出使用当量热阻、热阻、湿阻及透气率作为在此条件下织物的热湿舒适性物理指标,指出了在此条件下其特殊含义.并且用织物微气候仪测试了此条件下7种织物的热湿舒适性指标,与对比穿着试验的结果进行了分析,得出了一些初步规律
The following contents were mainly studied : ( 1 ) aspect , structure as well as characteristic of species composition between fragmental evergreen broadleaved forests and continuous evergreen broadleaved forest ; ( 2 ) species diversity , species abundance and species evenness between fragmental evergreen broadleaved forests and contin . . us evergreen broadleaved forest ; ( 3 ) plant floristic compositions at family and genus levels between fragmental evergreen broadleaved forests and continuous evergreen broadleaved forest ; ( 4 ) life form between fragmental evergreen broadleaved forests and continuous evergreen broadleaved forest ; ( 5 ) microclimate factor ( sun radiation , temperature , wind velocity , humidity ) in different level pattern ( open , edge and interior ) between fragmental evergreen broadleaved forests and continuous evergreen broadleaved forest ; ( 6 ) the relations between environment and soil factors as well as species diversity of forest community between fragmental evergreen broadleaved forests and continuous evergreen broadleaved forest 主要研究以下内容: ( 1 )片断和连续常绿阔叶林的外貌、结构和物种组成特征; ( 2 )片断和连续常绿阔叶林的物种多样性、丰富度和均匀性; ( 3 )片断和连续常绿阔叶林的科( ? )属水平的植物区系成分; ( 4 )片断和连续常绿阔叶林生活型组成; ( 5 )在不同的水平梯度格局上(林外、林缘和林内) ,片断和连续常绿阔叶林的小气候要素(光照、温度、风速、湿度等) ; ( 6 )片断和连续常绿阔叶林的环境和土壤因子,与群落的物种多样性之间的关系。实验结果表明: ( 1 )各片断森林的外貌特点基本上和连续森林一致。
This paper set up summer microclimate model in greenhouse in shanghai for simulation and prediction with this theory , then research the variation law of microclimate in the greenhouse imported from abroad in the term of summer climate in china and analyze the sole effect of every parameter on microclimate in greenhouse , so as to provide the theoretical foundation for the learning and management of advanced greenhouse from foreign countries 本文以此为工具建立了以上海地区现代化温室为代表的夏季温室小气候的模拟和预测模型,探讨国内夏季气候条件下国外引进温室内的小气候变化规律以及各个因子的单独作用分析,为国外先进温室的真正消化吸收提供理论基础。
- the microclimate in greenhouse is characterized by complicated , nonlinear and uncertain environment , and is extremely difficult to set up the precise mathematics model for it , so this paper atilizes inielligent control theory , especially the artificial neural network and genetic algorithm to build the empirical model for the microclimate in greenhouse 由于温室小气候的影响因子复杂、具有非线性和不确定性的特点,难以建立精确的数学模型,因此本文采用智能控制理论,特别是人工神经网络和遗传算法来建立温室小气候的经验模型。
And , the coefficient of heat conduction , temperature rise and fall in shelter chamber experiment are made , the result shows the stable plate heat conduction method is applicable , the integration of experience formula for calculation of heat and cool load and experiment analysis is suitable for design and validation of temperature in shelter chamber , the integration can nicely reflect the condition of microclimate temperature in shelter chamber , and have importance reference value for research of microclimate condition in shelter chamber . at last , in article the comparison is made between the felt techniques and foam techniques of the laminate plates , and improved manufacture techniques of composite laminate is brought forward . the experiment indicates the improved techniques can ensure the structure strength and heat preservation and insulation performance 基于军用医疗方舱特殊的微环境使用要求,运用稳定平壁传热分析方法建立了军用医疗方舱铝塑复合夹层大板传热系数理论计算模型,对军用医疗方舱铝-聚氨酯-铝复合夹层大板材料隔热保温性能进行了理论分析;运用经验分析方法进行了冷热负荷计算分析;并对两计算采用传热系数和舱室升温、降温试验进行了对比试验研究,结果表明稳定平壁传热分析方法计算传热系数方法可行,为方舱铝塑夹层大板的隔热保温结构和性能设计提供重要依据,并准确表征舱室内部微环境温度条件,对军用医疗方舱舱室微环境设计提供参考。