搜索筛选:
搜索耗时0.0360秒,为你在为你在61,042,058篇论文里面共找到 15 篇相符的论文内容
类      型:
[期刊论文] 作者:王乾,Wang Kaiyun, 来源:世界科技研究与发展 年份:2003
本文回顾了目前已发表的有关川西地区云冷杉林光能利用率的研究资料,从概念、测量方法、研究结果、影响因子等几个方面做了比较,发现川西地区森林净初级生产力和叶面积指数(L...
[期刊论文] 作者:杨万勤,WANG Kaiyun, 来源:世界科技研究与发展 年份:2003
土壤生态过程是川西亚高山针叶林生态系统过程研究中最具挑战性的研究领域 ,也是森林生态系统功能和过程研究中不可或缺的研究重点。土壤生态过程研究将有助于深入了解森林生...
[期刊论文] 作者:杨万勤,Wang Kaiyun, 来源:世界科技研究与发展 年份:2003
土壤生态过程是川西亚高山针叶林生态系统过程研究中最具挑战性的研究领域,也是森林生态系统功能和过程研究中不可或缺的研究重点.土壤生态过程研究将有助于深入了解森林生态...
[期刊论文] 作者:Yang Wanqin,Wang Kaiyun,Seppo, 来源:黑龙江科技学院学报 年份:2004
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7...
[期刊论文] 作者:Yang Wanqin,Wang Kaiyun,Seppo, 来源:山地科学学报 年份:2004
The wet canopy evaporation rate (Er) was calculated by Penman-Monteith combination model based on three assumptions and with meteorological variables 2 m above...
[期刊论文] 作者:Jiuchuan YANG,Kaiyun WANG,Hong, 来源:西南交通大学学报(英文版) 年份:2004
In order to analyze the characteristics of wheel-rail vibration of the vertical section in a high-speed railway,a vehicle-line dynamics model is established usi...
[期刊论文] 作者:Xingyin Gao,Minghui Qiu,Kaiyun, 来源:城市道桥与防洪 年份:2018
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥...
[期刊论文] 作者:Jian Shi,Yan Zhang,Kaiyun Zou,, 来源:环境科学学报(英文版) 年份:2004
The highly efficient inorganic polymer flocculants (IPFs) of the ferric-silica system is a new and promising coagulant. Interactions between ferric species and...
[期刊论文] 作者:Kaiyun Wang,Chao Huang,Wanming Z, 来源:Journal of Traffic and Transport 年份:2020
[期刊论文] 作者:Lu Chen,Zhian Bao,Honglin Yuan,Kaiyun Chen,Chunlei Zong, 来源:地球科学学刊(英文版) 年份:2020
In sample preparation and mass spectrometry analysis, sample dissolution, column chemistry, concentration mismatches, and matrix effects have significant potent...
[期刊论文] 作者:Chunlei Yang,Fu Li,Yunhua Huang,Kaiyun Wang,Baiqian He,, 来源:Journal of Modern Transportation 年份:2013
Improving freight axle load is the most effective method to improve railway freight capability; based on the imported technologies of railway freight bogie, the...
[期刊论文] 作者:Tian Aiping,Xu Ting,Liu Kaiyun,Zou Quanming,Yan Xiang, 来源:中华医学杂志英文版 年份:2014
[期刊论文] 作者:Lili JIANG Kaiyun WANG Yuguo WU Kaiyuan WANG Xinjun FANG, 来源:农业生物技术(英文版) 年份:2019
AbstractIn order to ascertain the soil carbon flux characteristics of poplar plantations and crop communities in the Dongting Lake area during the growing season and their correlation with hydrotherma...
[期刊论文] 作者:Wanming Zhai,Kaiyun Wang,Zhaowei Chen,Shengyang Zhu,Chengbiao Cai,Gang Liu, 来源:铁道工程科学(英文) 年份:2020
Motivated by the huge practical engineering demand for the fundamental understanding of mechanical characteristics of high-speed railway infrastructure, a full-...
[期刊论文] 作者:Feng Zhang,Kaiyun Qu,Xiaopei Li,Chaoming Liu,Lazarus S.Ortiz,Kaihong Wu,Xiaowei Wang,Ningping Huang, 来源:生物设计与制造(英文) 年份:2021
Cardiovascular diseases are the leading cause of morbidity and mortality throughout the world underlining the importance of efficient treatments including disea...
相关搜索: