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浏览/检索结果: 共5条，第1-5条 帮助 已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择发表日期升序发表日期降序作者升序作者降序提交时间升序提交时间降序题名升序题名降序 Effects of ozone on maize (Zea mays L.) photosynthetic physiology, biomass and yield components based on exposure- and flux-response relationships 期刊论文 ENVIRONMENTAL POLLUTION, 2020, 卷号: 256, 页码: 1-10 作者:  Peng, Jinlong;  Shang, Bo;  Xu, Yansen;  Feng, Zhaozhong;  Calatayud, Vicent 收藏  |  浏览/下载：12/0  |  提交时间：2021/08/31 Maize  Ozone sensitivity  Flux-response relationships  Critical levels  Developmental stages   Effect of drought stress on shoot growth and physiological response in the cut rose 'charming black' at different developmental stages 期刊论文 HORTICULTURE ENVIRONMENT AND BIOTECHNOLOGY, 2019, 卷号: Vol.60 No.1, 页码: 1-8 作者:  Shi, Liyun;  Wang, Zheng;  Kim, Wan Soon 收藏  |  浏览/下载：4/0  |  提交时间：2019/12/17 Chlorophyll fluorescence  Critical stages  Malformed flower  Rosa hybrida   Effect of drought stress on shoot growth and physiological response in the cut rose ‘charming black’ at different developmental stages 期刊论文 Horticulture, Environment, and Biotechnology, 2019, 卷号: Vol.60 No.1, 页码: 1-8 作者:  Liyun Shi;  Zheng Wang;  Wan Soon Kim 收藏  |  浏览/下载：2/0  |  提交时间：2019/12/13 Chlorophyll  fluorescence  Critical  stages  Malformed  flower  Rosa  hybrida   Integrated investigation of an incremental launching method for the construction of long-span bridges 期刊论文 Journal of Constructional Steel Research, 2015, 卷号: 112, 页码: 130-137 作者:  Hu, Zhijian;  Wu, Dajian;  Sun, L. Z.* 收藏  |  浏览/下载：2/0  |  提交时间：2019/12/04 Incremental-launching method  Critical launching stages  Stress fluctuation  Long-span bridges  Bridge construction   Recent progress on asphere manufacturing and testing at CIOM (EI CONFERENCE) 会议论文 Advanced Optical Manufacturing and Testing Technology 2000, November 1, 2000 - November 3, 2000, Chengdu, China Zhang X.; Zhang Z.; Wang Q.; Yu J. 收藏  |  浏览/下载：18/0  |  提交时间：2013/03/25 The manufacturing procedure of a 500 mm in diameter  f/2 hyperbolic primary mirror based on Computer-Controlled Polishing is introduced in detail. The mirror was finally polished to the shape accuracy of 13 nm rms and the surface roughness of 2 nm Ra. Testing methods and data analysis for different stages ranging from grinding to polishing are discussed. Some critical factors affecting the efficiency and accuracy of the grinding/polishing procedure are summarized. In addition  the preliminary work to make large off-axis asphere mirrors is presented. The difficulties in polishing and testing for both circular aperture and rectangular aperture mirrors are previewed  and a possible solution is given. To control the geometrical parameters such as radius of curvature and conic constant  a new profiler has been built  and it has proven very useful to improve the grinding efficiency. Finally  the manufacturing of small aspheres using deterministic grinding tool is also introduced. The fine grinding procedure of LOH's asphere grinding machine is presented.