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浏览/检索结果: 共56条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Efficient absorption of green light by the canopy of a monoculture coniferous forest 期刊论文  OAI收割 AGRICULTURAL AND FOREST METEOROLOGY, 2024, 卷号: 351, 页码: 10 作者:  Kang, Huixing;  Han, Jiayin;  Mu, Xihan;  Chen, Jin;  Zhang, Leiming   |  收藏  |  浏览/下载：188/0  |  提交时间：2024/07/24 Chlorophyll  Diffuse radiation  Green light  Leaf area index  Light quality  Light extinction   Colored Plastic Film Mulching Regulates Light Quality and Sucrose Metabolism in Wine Grape in an Arid Desert Oasis 期刊论文  OAI收割 JOURNAL OF PLANT GROWTH REGULATION, 2023, 页码: 10 作者:  Zhou, Lifeng;  Yang, Yuxiang;  Feng, Hao   |  收藏  |  浏览/下载：21/0  |  提交时间：2023/10/09 Plastic film mulching  Light quality  Fruit quality  Wine grape   Quantitative simulating experiment of atmospheric turbulence scintillation for light field imaging 会议论文  OAI收割 Kunming, China, 2021-12-07 作者:  Cheng, Zhiyuan;  Ma, Qing;  Li, Zhiguo;  Xia, Aili;  Ji, Zhou   |  收藏  |  浏览/下载：116/0  |  提交时间：2022/04/27 atmosphere scintillation  quantitative scintillation simulating experiment  imaging quality  light field imaging   Influences of open-central canopy on photosynthetic parameters and fruit quality of apples (Malus x domestica) in the Loess Plateau of China 期刊论文  OAI收割 HORTICULTURAL PLANT JOURNAL, 2022, 卷号: 8, 期号: 2, 页码: 133-142 作者:  Lin, Lu;  Niu, Zimian;  Jiang, Chuangdao;  Yu, Lu;  Wang, Hongning   |  收藏  |  浏览/下载：13/0  |  提交时间：2024/03/07 Apple  Open-central canopy  Light environment  Photosynthesis  Thermal dissipation  Photorespiration  Fruit quality   Impact of reduced light intensity on wheat yield and quality: Implications for agroforestry systems 期刊论文  OAI收割 AGROFORESTRY SYSTEMS, 2021, 页码: 13 作者:  Jia, Jiyu;  Xu, Meng;  Bei, Shuikuan;  Zhang, Hongzhi;  Xiao, Li   |  收藏  |  浏览/下载：43/0  |  提交时间：2021/11/05 Agroforestry  Light intensity  Shading period  Heterogeneous spatio-temporal light patterns  Grain yield  Grain quality   Effects of light quality on growth rates and pigments of Chaetoceros gracilis(Bacillariophyceae) CNKI期刊论文  OAI收割 2020 作者:  LI Yongfu;  LI Ruiqian;  YI Xiaoyan   |  收藏  |  浏览/下载：2/0  |  提交时间：2024/12/18 Chaetoceros gracilis  light quality  pigments  wavelength effect  mean extinction coefficients   A structured light vision sensor for on-line weld bead measurement and weld quality inspection 期刊论文  OAI收割 INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY, 2020, 卷号: 106, 期号: 5-6, 页码: 2065-2078 作者:  Han, Yanqing;  Fan, Junfeng;  Yang, Xiaozhong   |  收藏  |  浏览/下载：83/0  |  提交时间：2020/03/30 Weld bead measurement  Weld quality inspection  Structured light vision  Image processing  3D reconstruction   The braking index of PSR B0540-69 and the associated pulsar wind nebula emission after spin-down rate transition 期刊论文  OAI收割 Monthly Notices of the Royal Astronomical Society, 2020, 卷号: 494, 页码: 1865-1870 作者:  HXMT   |  收藏  |  浏览/下载：54/0  |  提交时间：2022/02/08 stars: magnetic field  stars: neutron  pulsars: general  Astrophysics  - High Energy Astrophysical Phenomena  Abstract: In 2011 December, PSR B054-69 experienced a spin-down rate transition (SRT), after which the spin-down power of the pulsar increased by $\sim 36{{\ \rm per\ cent}}$. About 1000 d after the SRT, the X-ray luminosity of the associated pulsar wind nebula (PWN) was found to brighten by $32\pm 8{{\ \rm per\ cent}}$. After the SRT, the braking index n of PSR B0540-69 changes from n = 2.12 to 0.03 and then keeps this value for about five years before rising to n = 0.9 in the following years. We find that most of the current models have difficulties in explaining the measured braking index. One exceptive model of the braking index evolution is the increasing dipole magnetic field of PSR B0540-69. We suggest that the field increase may result from some instabilities within the pulsar core that enhance the poloidal component at the price of toroidal component of the magnetic field. The increasing dipole magnetic field will result in the X-ray brightening of the PWN. We fit the PWN X-ray light curve by two models: one assumes a constant magnetic field within the PWN during the brightening and the other assumes an enhanced magnetic field proportional to the energy density of the PWN. It appears that the two models fit the data well, though the later model seems to fit the data a bit better. This provides marginal observational evidence that magnetic field in the PWN is generated by the termination shock. Future high-quality and high-cadence data are required to draw a solid conclusion.   Systematic Identification of the Light-quality Responding Anthocyanin Synthesis-related Transcripts in Petunia Petals 期刊论文  OAI收割 HORTICULTURAL PLANT JOURNAL, 2020, 卷号: 6, 期号: 6, 页码: 428-438 作者:  Fu, Zhenzhu;  Shang, Hongquan;  Jiang, Hui;  Gao, Jie;  Dong, Xiaoyu   |  收藏  |  浏览/下载：26/0  |  提交时间：2022/03/01 Petunia  Anthocyanin  Transcription factor  Light quality  Transcriptome analysis   Stray Light Analysis and Control of Grating Multistage Diffraction in HRS 期刊论文  OAI收割 Guangxue Xuebao/Acta Optica Sinica, 2019, 卷号: 39, 期号: 6 作者:  Y.Li;  C.Yang;  C.Xue;  X.Li;  Z.Ma   |  收藏  |  浏览/下载：41/0  |  提交时间：2020/08/24 Stray light,Diffraction,Diffraction gratings,Heterodyning,Light transmission,Quality control,Spectrometers,Spectroscopy