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CAS IR Grid
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生态环境研究中心 [3]
力学研究所 [1]
成都山地灾害与环境研... [1]
长春光学精密机械与物... [1]
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OAI收割 [7]
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期刊论文 [5]
会议论文 [1]
学位论文 [1]
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2020 [2]
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系统生态学::城市生... [1]
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Urban buildings material intensity in China from 1949 to 2015
期刊论文
OAI收割
RESOURCES CONSERVATION AND RECYCLING, 2020, 卷号: 159, 页码: 1-9
作者:
Yang, Dong
;
Guo, Jing
;
Sun, Lingwen
;
Shi, Feng
;
Liu, Jingru
  |  
收藏
  |  
浏览/下载:24/0
  |  
提交时间:2021/08/31
Material intensity
Urban building
Material stock and flows
China
Material use and resource efficiency of African sub-regions
期刊论文
OAI收割
JOURNAL OF CLEANER PRODUCTION, 2020, 卷号: 247, 页码: 1-9
作者:
Baninla, Yvette
;
Lu, Yonglong
;
Zhang, Qian
;
Omotehinse, Adeyinka O.
;
Zheng, Xiaoqi
  |  
收藏
  |  
浏览/下载:43/0
  |  
提交时间:2021/08/31
Material intensity
Africa
Resource policy
Material flow analysis
IPAT
Interactions between the flame and different coatings in a slit burner
期刊论文
OAI收割
FUEL, 2019, 卷号: 253, 页码: 420-430
作者:
Li, Fan
;
Yang, Haolin
;
Huo, Jiepeng
;
Wang, Xiaohan
;
Jiang, Liqiao
  |  
收藏
  |  
浏览/下载:29/0
  |  
提交时间:2020/10/29
Flame-wall interaction
Coating material
Quenching distance
OH intensity
Surface analysis
Temporal differentiation of rainfall thresholds for debris flows in Wenchuan earthquake-affected areas
期刊论文
OAI收割
ENVIRONMENTAL EARTH SCIENCES, 2016, 卷号: 75, 期号: 2, 页码: DOI:10.1007/s12665-015-5031-1
作者:
Guo, Xiaojun
;
Cui, Peng
;
Li, Yong
;
Fan, Jianglin
;
Yan, Yan
收藏
  |  
浏览/下载:42/0
  |  
提交时间:2016/04/25
Debris flows
Rainfall intensity
Event rainfall
Loose material
Wenchuan earthquake area
城市建筑的物能代谢及生态效应研究
学位论文
OAI收割
博士, 北京: 中国科学院研究生院, 2011
张海涛
收藏
  |  
浏览/下载:88/0
  |  
提交时间:2012/01/18
城市建筑
Urban building
建筑垃圾
Construction waste
固体废物
Solid waste
物质投入强度
Material use intensity
生态足迹城市建筑
Ecological footprint
生态足迹
The calibration of faint simulation star magnitude based on single photon count technique (EI CONFERENCE)
会议论文
OAI收割
International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Imaging Detectors and Applications, June 17, 2009 - June 19, 2009, Beijing, China
作者:
Xu S.-Y.
;
Guo J.
;
Guo J.
收藏
  |  
浏览/下载:33/0
  |  
提交时间:2013/03/25
A calibration method of faint star magnitude of the star scene simulation device is proposed in this paper. In the research of simulation star magnitude
luminometers and CCD devices are the general calibration devices which are used to measure the illumination intensity and calibrate its magnitude. But if the simulation magnitude is only sixth magnitude
its illumination intensity is only 1.010-8 Lux. This illumination intensity level is the lowest illumination intensity that the commercial luminometer can detect. Hence the simulation star magnitude lower than six magnitude cannot be calibrated by luminoters. Likewise CCD devices also need an additive cooler in this case. When the single photon characteristic is presented due to the low luminosity of simulating light sources
the simulation star magnitude can be calibrated by detecting its photon flux of radiation with the method of single photon count. In this paper the detection principle of single photon based on a compact designed PMT detecting of the radiation level of simulation star magnitude is advanced. Especially a spectrum match method is proved theoretically to be an effective means for selecting PMT photosensitive type. In the case of the detection object of the simulation star in visible wavelength
a analysis indicates that the material of tri-alkali cathode materials its best choice after being compared the Signal-to-Noise of photon detector of several PMT photosensitive materials based on the different spectrum match ratio of different object light sources and different cathode materials. An experiment is employed to show the relationship of control voltage of PMT and its dark counter
the relationship of the environment temperature of PMT and its dark counter
which proves its only decades of CPS at room temperature. The so low dark counter avoids a bulky cooler and is convenient for installing it on the star scene simulation equipment. Finally in the experiment of calibrating the simulation star magnitudes the ability of its calibration is confirmed to reaches up to 12m
meanwhile its calibration error is within 0.2m. 2009 SPIE.
Semi-weight function method on computation of stress intensity factors in dissimilar materials
期刊论文
OAI收割
Applied Mathematics and Mechanics (English Edition), 2004, 卷号: 25, 期号: 11, 页码: 1241-1248
作者:
Ma KP(马开平)
;
Liu CT(柳春图)
收藏
  |  
浏览/下载:579/27
  |  
提交时间:2009/08/03
Dissimilar Material
Interface Crack
Stress Intensity Factor
Semi-Weight Function Method
Plane Fracture Problem
Cracks