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湖南大学 [2]
长春光学精密机械与物... [1]
武汉理工大学 [1]
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期刊论文 [4]
会议论文 [1]
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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
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  |  
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
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  |  
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
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  |  
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.*
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  |  
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.
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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.
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