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The impact of the COVID-19 pandemic on waste-to-energy and waste-to-material industry in China 期刊论文  OAI收割
RENEWABLE & SUSTAINABLE ENERGY REVIEWS, 2021, 卷号: 139, 页码: -
作者:  
Zhou, Chuanbin;  Yang, Guang;  Ma, Shijun;  Liu, Yijie;  Zhao, Zhilan
  |  收藏  |  浏览/下载:25/0  |  提交时间:2021/12/21
乌鲁木齐制造业上市公司对外空间联系研究 学位论文  OAI收割
北京: 中国科学院大学, 2020
作者:  
肖凤玲
  |  收藏  |  浏览/下载:48/0  |  提交时间:2021/12/10
A New Set of Parameters of High-Mass X-ray Binaries Found with their Cyclotron Lines 期刊论文  OAI收割
arXiv e-prints, 2018
作者:  
Zhang, Chengmin;  Taani, Ali;  Chaty, Sylvain;  Karino, Shigeyuki;  Song, Liming
  |  收藏  |  浏览/下载:75/0  |  提交时间:2019/07/12
Astrophysics - High Energy Astrophysical Phenomena  Abstract: We have derived new physical quantities for several High-Mass X-ray Binaries (HMXBs) with supergiant (SG) companions through their cyclotron lines. The parameters are: the terminal velocity of the wind, the mass loss rate of the donor, the effective temperature and the magnetic fields. These parameters influence significantly the improvement of the model of accretion. In spite of the variety of their observational properties, the corresponding magnetic field is around B ~ 10^12 G. This result can be constrained by the effects on stellar evolution. In addition, we have performed a segmentation in the parameter space of donors intended for several SG-HMXB listed in our sample set. The parameter space can be categorized into five regimes depending on the possibility of disk formation associated with accretion from the stellar wind. This can give a quantitative clarification of the observed variability and the properties of these objects. We show that, when these systems come into the direct accretion region, systems with corresponding parameters can emit X-rays.  
Improved modulation method for optical module based on compensation technology (EI CONFERENCE) 会议论文  OAI收割
2012 International Conference on Industrial Control and Electronics Engineering, ICICEE 2012, August 23, 2012 - August 25, 2012, Xi'an, China
Cheng P.; Yu W.-J.; Wang R.-G.; Zheng X.-F.
收藏  |  浏览/下载:21/0  |  提交时间:2013/03/25
Multi-focus image fusion algorithm based on adaptive PCNN and wavelet transform (EI CONFERENCE) 会议论文  OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Imaging Detectors and Applications, May 24, 2011 - May 26, 2011, Beijing, China
Wu Z.-G.; Wang M.-J.; Han G.-L.
收藏  |  浏览/下载:73/0  |  提交时间:2013/03/25
Being an efficient method of information fusion  image fusion has been used in many fields such as machine vision  medical diagnosis  military applications and remote sensing.In this paper  Pulse Coupled Neural Network (PCNN) is introduced in this research field for its interesting properties in image processing  including segmentation  target recognition et al.  and a novel algorithm based on PCNN and Wavelet Transform for Multi-focus image fusion is proposed. First  the two original images are decomposed by wavelet transform. Then  based on the PCNN  a fusion rule in the Wavelet domain is given. This algorithm uses the wavelet coefficient in each frequency domain as the linking strength  so that its value can be chosen adaptively. Wavelet coefficients map to the range of image gray-scale. The output threshold function attenuates to minimum gray over time. Then all pixels of image get the ignition. So  the output of PCNN in each iteration time is ignition wavelet coefficients of threshold strength in different time. At this moment  the sequences of ignition of wavelet coefficients represent ignition timing of each neuron. The ignition timing of PCNN in each neuron is mapped to corresponding image gray-scale range  which is a picture of ignition timing mapping. Then it can judge the targets in the neuron are obvious features or not obvious. The fusion coefficients are decided by the compare-selection operator with the firing time gradient maps and the fusion image is reconstructed by wavelet inverse transform. Furthermore  by this algorithm  the threshold adjusting constant is estimated by appointed iteration number. Furthermore  In order to sufficient reflect order of the firing time  the threshold adjusting constant is estimated by appointed iteration number. So after the iteration achieved  each of the wavelet coefficient is activated. In order to verify the effectiveness of proposed rules  the experiments upon Multi-focus image are done. Moreover  comparative results of evaluating fusion quality are listed. The experimental results show that the method can effectively enhance the edge details and improve the spatial resolution of the image. 2011 SPIE.  
False Financial Statements: Characteristics of China's listed companies and CART detecting approach 期刊论文  OAI收割
INTERNATIONAL JOURNAL OF INFORMATION TECHNOLOGY & DECISION MAKING, 2008, 卷号: 7, 期号: 2, 页码: 339-359
作者:  
Bai, Belinna;  Yen, Jerome;  Yang, Xiaoguang
  |  收藏  |  浏览/下载:16/0  |  提交时间:2018/07/30
The replacement of dry heat in generic reliability assurance requirements for passive optical components (EI CONFERENCE) 会议论文  OAI收割
ICO20: Optical Devices and Instruments, August 21, 2005 - August 26, 2005, Changchun, China
作者:  
Zhang G.;  Zhang G.;  Zhang G.
收藏  |  浏览/下载:21/0  |  提交时间:2013/03/25
According to Generic Reliability Assurance Requirements for Passive Optical Components GR-1221-CORE (Issue 2  January 1999)  reliability determination test of different kinds of passive optical components which using in uncontrolled environments is taken. The test condition of High Temperature Storage Test (Dry Test) and Damp Test is in below sheet. Except for humidity condition  all is same. In order to save test time and cost  after a sires of contrast tests  the replacement of Dry Heat is discussed. Controlling the Failure mechanism of dry heat and damp heat of passive optical components  the contrast test of dry heat and damp heat for passive optical components (include DWDM  CWDM  Coupler  Isolator  mini Isolator) is taken. The test result of isolator is listed. Telcordia test not only test the reliability of the passive optical components  but also test the patience of the experimenter. The cost of Telcordia test in money  manpower and material resources  especially in time is heavy burden for the company. After a series of tests  we can find that Damp heat could factually test the reliability of passive optical components  and equipment manufacturer in accord with component manufacture could omit the dry heat test if damp heat test is taken first and passed.  
CORRELATION BETWEEN ENRICHMENT FACTORS AND RESIDENCE TIMES OF REE IN MARINE SYSTEM 期刊论文  OAI收割
Science Bulletin, 1986, 期号: 3, 页码: 197-199
作者:  
Chai ZF(柴之芳);  Mao XY(毛雪瑛);  Ma SL(马淑兰)
收藏  |  浏览/下载:13/0  |  提交时间:2015/12/07
MULTIBARYON AND LIGHT A HYPERNUCLEI 期刊论文  OAI收割
A Monthly Journal of Science, 1983, 期号: 18, 页码: 1172-1177
作者:  
Wang WW(王潍潍);  Zhang YS(张禹顺);  Li YG(李扬国);  Ruan TN(阮图南)
收藏  |  浏览/下载:7/0  |  提交时间:2015/12/10