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您的检索式：作者名="Weifeng Gui"
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| 1 | Ghost-Retina Net:Fast Shadow Detection Method for Photovoltaic Panels Based on Improved Retina Net显示文摘Based on the artificial intelligence algorithm of RetinaNet,we propose the Ghost-RetinaNet in this paper,a fast shadow detection method for photovoltaic panels,to solve the problems of extreme target density,large overlap,high cost and poor real-time performance in photovoltaic panel shadow detection.Firstly,the Ghost CSP module based on Cross Stage Partial(CSP)is adopted in feature extraction network to improve the accuracy and detection speed.Based on extracted features,recursive feature fusion structure ismentioned to enhance the feature information of all objects.We introduce the SiLU activation function and CIoU Loss to increase the learning and generalization ability of the network and improve the positioning accuracy of the bounding box regression,respectively.Finally,in order to achieve fast detection,the Ghost strategy is chosen to lighten the size of the algorithm.The results of the experiment show that the average detection accuracy(mAP)of the algorithm can reach up to 97.17%,the model size is only 8.75 MB and the detection speed is highly up to 50.8 Frame per second(FPS),which can meet the requirements of real-time detection speed and accuracy of photovoltaic panels in the practical environment.The realization of the algorithm also provides new research methods and ideas for fault detection in the photovoltaic power generation system. | Jun Wu Penghui Fan Yingxin Sun Weifeng Gui | 2023 | Computer Modeling in Engineering & Sciences2023，，2： | 0 |
| 2 | Highly π-extended copolymer as additive-free hole- transport material for perovskite solar cells显示文摘Organolead 卤化物 perovskite 太阳能电池完成了 22.1% 的证明力量变换效率(PCE ) 并且因此在下一代的光电的设备的最有希望的候选人之中。迄今为止,大多数高效率的 perovskite 太阳能电池采用了基于 arylamine 的洞运输材料(HTM ) ,它是昂贵的并且有低活动性。复杂的做过程和在这些 HTM 使用的潜在地稳定性不利的掺杂物在为 perovskite 太阳能电池(PSC ) 的商品化的主要瓶颈之中。此处,我们在场有直到 8.2 厘米 2 楨楢整 ? 潮漠癢潩獵挠慨杮?? 灭牯慴瑮祬 ? 桴 ? 潣癮 牥楳湯漠 ? 的洞活动性的基于 polythiophene 的共聚物(PDVT-10 )? 偎眠獡猠杩楮楦慣瑮祬攠桮湡散 ? 湵敤 ? 楬桧 ? 物慲楤瑡潩 ? 牰癯摩摥戠 ????? 敘氠浡 ? 琨敨瘠獩扩敬氠杩?映潲 ? 畣潴晦栠癡? 煥慵 ? 畦据楴湯 ? 戠瑵甠瑬慲楶汯瑥氠杩?搠摩渠瑯瀠潲潭整琠敨挠湯敶獲潩 ? 吠敨挠湯敶獲潩 ? 楴敭眠獡爠摥 ' 讚充?财‰潴㈠ ? 猠眠瑩 ? 楬桧 ? 物慲楤瑡潩 ? ㄨ‵? 慩? 删癥獩摥 ? 楤楴湯㈠ ? 8 玔? 玔?? | Jie Liu Qianqing Ge Weifeng Zhang Jingyuan Ma Jie Ding Gui Yu Jinsong Hu | 2018 | Nano Research2018，11，1： | 0 |
| 3 | Synthesis, structure, optoelectronic properties of novel zinc Schiff-base complexes显示文摘Two novel zinc Schiff-base complexes, bis-(N-(2-hydroxybenzidene)-p-aminodimethylaniline)zinc(II) (2) and bis-(N-(2-hydroxy-1-naphthidene)-p-aminodimethylaniline)zinc(II) (4) were designed and synthesized. Both the complexes exhibit good solubility in organic solvents and excellent thermal stabilities. A single crystal of 2 was grown and its crystalline structure was determined from X-ray diffraction data. Analysis of the electronic structures of both the zinc complexes calculated by density functional theory reveals a localization of orbital. The UV-Vis absorption and photoluminescence profiles of 4 in thin film are similar to those of 2, but the emission for 4 is red-shifted compared to 2. Three-layered devices with a configuration of ITO/NPB/2/Alq 3 /LiF/Al and ITO/NPB/4/Alq 3 /LiF/Al show a yellow and red emission, respectively. | WANG LiPing JIAO ShiBo ZHANG WeiFeng LIU YunQi YU Gui | 2013 | Chinese Science Bulletin2013，58，22： | 0 |
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