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Spotted Hyena-Bat Optimized Extreme Learning Machine for Solar Power Extraction

Computer Systems Science & Engineering 2023年第5期45卷 1821-1836页

作者： K.Madumathi S.Chandrasekar Faculty of Electrical and Electronics Engineering Mahendra Institute of TechnologyNamakkalTamilnaduIndia Faculty of Electrical and Electronics Engineering Sona College of TechnologySalemTamilnaduIndia

artificial intelligence,machine learning and deep learning algorithms have been widely used for Maximum Power Point Tracking(MPPT)in solar *** the traditional MPPT strategies,following of worldwide Global Maximum Power Point(GMPP)under incomplete concealing conditions stay overwhelming assignment and tracks different nearby greatest power focuses under halfway concealing *** advent of artificial intelligence in MPPT has guaranteed of accurate following of GMPP while expanding the significant performance and efficiency of MPPT under Partial Shading Conditions(PSC).Still the selection of an efficient learning based MPPT is complex because each model has its advantages and ***,Meta-heuristic algorithm based Learning techniques have provided better tracking efficiency but still exhibit dull performances under *** work represents an excellent optimization based on Spotted Hyena Enabled Reliable BAT(SHERB)learning models,SHERB-MPPT integrated with powerful extreme learning machines to identify the GMPP with fast convergence,low steady-state oscillations,and good tracking *** testing using MATLAB-SIMULINK,with 50000 data combinations gathered under partial shade and normal *** a result of simulations,the proposed approach offers 99.7%tracking efficiency with a slower convergence *** demonstrate the predominance of the proposed system,we have compared the performance of the system with other hybrid MPPT learning *** proved that the proposed cross breed MPPT model had beaten different techniques in recognizing GMPP viably under fractional concealing conditions.

关键词： Global maximum power point tracking artificial intelligence machine learning deep learning spotted hyena-BAT algorithm

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Robust Local Light Field Synthesis via Occlusion-aware Sampling and Deep Visual Feature Fusion

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Machine intelligence research 2023年第3期20卷 408-420页

作者： Wenpeng Xing Jie Chen Yike Guo Department of Computer Science Hong Kong Baptist UniversityHong Kong 999077China Data Science institute Imperial College LondonLondon SW72AZUK

Novel view synthesis has attracted tremendous research attention recently for its applications in virtual reality and immersive *** a locally immersive light field(LF)based on arbitrary large baseline RGB references is a challenging problem that lacks efficient solutions with existing novel view synthesis *** this work,we aim at truthfully rendering local immersive novel views/LF images based on large baseline LF captures and a single RGB image in the target *** fully explore the precious information from source LF captures,we propose a novel occlusion-aware source sampler(OSS)module which efficiently transfers the pixels of source views to the target view′s frustum in an occlusion-aware *** attention-based deep visual fusion module is proposed to fuse the revealed occluded background content with a preliminary LF into a final refined *** proposed source sampling and fusion mechanism not only helps to provide information for occluded regions from varying observation angles,but also proves to be able to effectively enhance the visual rendering *** results show that our proposed method is able to render high-quality LF images/novel views with sparse RGB references and outperforms state-of-the-art LF rendering and novel view synthesis methods.

关键词： Novel view synthesis light field(LF)imaging multi-view stereo occlusion sampling deep visual feature(DVF)fusion

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Top 10 Technological Breakthroughs of CNPC in 2012

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China Oil & Gas 2013年第1期20卷 22-27页

作者： CNPC R&D Department CNPC research institute of Economics and Technology CNPC R&D Department CNPC research institute of Economics and Technology

CNPC attaches great importance to technological research and development, and makes steady progress every year relying on the intelligence and diligence of its people. Major breakthrough in molecular geochemical tracing of complex oil/gas reservoir forming This important breakthrough addresses the difficulty in predicting hydrocarbon properties and

关键词：中国石油天然气集团公司科技地球化学示踪气藏形成分布规律油气成藏勘探烃类

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artificial Pheromone System Using RFID for Navigation of Autonomous Robots

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Journal of Bionic Engineering 2007年第4期4卷 245-253页

作者： Herianto Toshiki Sakakibara Daisuke Kurabayashi Tokyo institute of Technology Tokyo 152-8552 Japan

Navigation system based on the animal behavior has received a growing attention in the past few years. The navigation systems using artificial pheromone are still few so far. For this reason, this paper presents our research that aim to implement autonomous navigation with artificial pheromone system. By introducing artificial pheromone system composed of data carriers and autonomous robots, the robotic system creates a potential field to navigate their group. We have developed a pheromone density model to realize the function of pheromones with the help of data carders. We intend to show the effectiveness of the proposed system by performing simulations and realization using modified mobile robot. The pheromone potential field system can be used for navigation of autonomous robots.

关键词： artificial pheromone RFID indirect communication autonomous robot navigation

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Improvement of saponification extraction method for fatty acids separation from geological samples

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Acta Geochimica 2016年第2期35卷 148-155页

作者： Jiang Chang Yanqing Xia Suping Ma Xuan Fang Minzhuo Sun Key Laboratory of Petroleum Resources Gansu Province/Key Laboratory of Petroleum Resources Research Institute of Geology and Geophysics Chinese Academy of SciencesLanzhou 730000 People's Republic of China University of Chinese Academy of Sciences Beijing 100049People's Republic of China

The conventional saponification method could result in lower recoveries and artificial changes of longchain fatty acids. The main reason is the error judgment of the intermediate layer suspended between the aqueous and organic layer during the liquid–liquid extraction *** study shows that the intermediate layer consists of lots of medium- to long-chain carboxylic salts for their special physical and chemical properties. An improved saponification extraction method is also developed and the results show that the carboxylic salts distributed in the intermediate layer could be obtained completely, which greatly enhances the authenticity and accuracy of fatty acid analysis. Additionally, the possible reasons of formation of the intermediate layer are also discussed.

关键词：长链脂肪酸提取方法皂化地质样品分离中间层错误判断萃取过程

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artificial facial nerve reflex restores eyelid closure following orbicularis oculi muscle denervation

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Neural Regeneration research 2010年第22期5卷 1750-1755页

作者： Yujuan Wang Keyong Li Jingquan Liu Dongyue Xu Yuefeng Rui Chunsheng Yang Department of Otolaryngology-Head and Neck Surgery First People's Hospital Shanghai Jiao Tong University Shanghai 200080 China Department of Micro-Nano Technology Laboratory Research Institute of Micro-Nano Science and Technology Shanghai Jiaotong University Shanghai 200030 China

To date, treatment of peripheral facial paralysis has focused on preservation of facial nerve integrity. However, with seriously damaged facial nerve cases, it is difficult to recover anatomical and functional integrity using present therapies. Therefore, the present study utilized artificial facial nerve reflex to obtain orbicularis oculi muscle （OOM） electromyography signals on the uninjured side through the use of implanted recording electrodes. The implanted electrical chips analyzed facial muscle motion on the uninjured side and triggered an electrical stimulator to emit current pulses, which resulted in stimulation of injured OOM contraction and maintained bilateral symmetry and consistency. Following signal recognition, extraction, and computer analysis, electromyography signals in the uninjured OOM resulted in complete eyelid closure, which was consistent with the voltage threshold for eye closure. These findings suggested that artificial facial nerve reflex through the use of implanted microelectronics in unilateral peripheral facial paralysis could restore eyelid closure following orbicularis oculi muscle denervation.

关键词： artificial facial nerve reflex facial paralysis/therapy electrical stimulation electromyography nerve regeneration

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Thread Structure Prediction for MOOC Discussion Forum

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国际计算机前沿大会会议论文集 2016年第2期 30-32页

作者： Chengjie Sun Shang-wen Li Lei Lin School of Computer Science and Technology Harbin Institute of TechnologyHarbinChina MIT Computer Science and artificial intelligence Laboratory CambridgeMA 02139USA

Discussion forums are an indispensable interactive component for Massive Open Online Courses(MOOC).However,the organization of current discussion forums is not ***-shooting threads are valuable for both learners and instructors,but they are drowned out in the forums with huge amounts of *** work first built a labeled data set for trouble-shooting thread structure prediction by crowdsourcing and then proposed methods for trouble-shooting thread detection and thread structure prediction on the data *** output of this work can be used to spot trouble-shooting threads and show them along with structure tags in MOOC discussion forums.

关键词： Thread structure prediction Crowdsourcing Lightly supervised learning MOOC

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Geotextile protection of glacier:Observed and simulated impacts on energy and mass balance

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Advances in Climate Change research 2023年第6期14卷 963-975页

作者： Fei-Teng WANG Shuang-Shuang LIU Xing WANG Hui-Lin LI Chun-Hai XU Lin WANG Yu-Ang XUE Xiao-Ying YUE State Key Laboratory of Cryospheric Science Northwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhou 730000China University of Chinese Academy of Sciences Beijing 100049China

The detailed physical processes involved in slowing glacier ablation by material cover remain poorly understood so *** the present study,using the snow cover model SNOWPACK,the effect of geotextile cover on the energy and mass balance at the tongue of the Urumqi Glacier No.1(Chinese Tien Shan)was simulated between July 12,2022 and August 31,*** mass changes and the energy fluxes with and without material cover were *** results indicated that the geotextile covering reduced glacier ablation by approximately 68%compared to the ablation in the uncovered *** high solar reflectivity of the geotextile reduced the net short-wave radiation energy available for the melt by 45%.Thermal insulation of the geotextile reduced the sensible heat flux by 15%.In addition,the wet geotextile exerted a cooling effect through long-wave radiation and negative latent heat *** cooling effect reduced the energy available for ablation by 20%.Consequently,only 37%of the energy was used for melting compared to that used in the uncovered regions(67%).Sensitivity experiments revealed that the geotextile cover used at a thickness range of 0.045-0.090 m reduced the ice loss by approximately 68%-72%,and a further increase in the thickness of the geotextile cover led to little improvements.A higher temperature and greater wind speed increased glacier ablation,although their effects were *** the precipitation was set to zero,it led to a significantly increased ***,the geotextile effectively protected the glacier tongue from rapid melting,and the observed results have provided inspiration for developing an effective and sustainable approach to protect the glaciers using geotextile cover.

关键词： artificial melt reduction SNOWPACK Geotextile Energy and mass balance Urumqi glacier No.1 Chinese Tien Shan

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research and Development of Calibration Device on SF6 Gas Density Monitoring Equipment

Research and Development of Calibration Device on SF6 Gas De...

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2015 3rd International Conference on Machinery,Materials and Information Technology Applications(ICMMITA 2015)

作者： Hu Chengbo Ma Yong Zhou Zhicheng Tao Fengbo Xu Changfu Jiangsu Electric Power Company research institute

The calibration of SF6 gas density on-line monitoring device needs to simulate different pressure environment to calibrate the data accuracy of the on-line monitoring device. At present, the simulation of different pressure environment is conducted by artificial cranking bar to change the stroke of cylinder piston to realize the aim of change the gas pressure. Generally, technical personnel take calibration device to the field, select a suitable pressure, connect the checked device to test button and conduct the contrast calibration. Based on above operation, multi-group data of the checked on-line monitoring device can be obtained. While this method depends on artificial manual operation, squander time and vigour and can not set pressure value exactly. In order to make up for deficiency of existing problems, the paper presents a calibration device on SF gas density monitoring equipment. The calibration device can make the calibration procession conducted automatically through controlling the pressure and its lasting time automatically. The use of the device can effectively complete calibration and improve the quality of *** show that it can provide a powerful guarantee to grid equipment reliable operation.

关键词： SF6 gas cylinder piston on-line monitoring device calibration

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A gelatin-based artificial SEI for lithium deposition regulation and polysulfide shuttle suppression in lithium-sulfur batteries

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Journal of Energy Chemistry 2021年第1期30卷 310-317,I0010页

作者： Naseem Akhtar Xiaogang Sun Muhammad Yasir Akram Fakhar Zaman Weikun Wang Anbang Wang Long Chen Hao Zhang Yuepeng Guan Yaqin Huang Beijing Key Laboratory of Electrochemical Process and Technology for Materials Key Laboratory of Biomedical Materials of Natural MacromoleculesMinistry of EducationBeijing Advanced Innovation Center for Soft Matter Science and EngineeringBeijing University of Chemical TechnologyBeijing 100029China research institute of Chemical Defense Beijing 100191China

Lithium-sulfur(Li-S) battery is one of the best candidates for the next-generation energy storage system due to its high theoretical capacity(1675 mA h-1),low cost and environment ***,lithium(Li) dendrites formation and polysulfide shuttle effect are two major challenges that limit the commercialization of Li-S *** we design a facile bifunctional interlayer of gelatin-based fibers(GFs),aiming to protect the Li anode surface from the dendrites growth and also hinder the polysulfide shuttle *** reveal that the 3D structural network of GFs layer with abundant polar sites helps to homogenize Li-ion flux,leading to uniform Li-ion ***,the polar moieties also immobilize the lithium polysulfides and protect the Li metal from the *** a result,the anodeprotected batteries have shown significantly enhanced performance.A high coulombic efficiency of 96% after 160 cycles has been achieved in the Li-Cu half *** Li-Li symmetric cells exhibit a prolonged lifespan for 800 h with voltage hysteresis(10 mV).With the as-prepared GFs layer,the Li-S battery shows approximately 14% higher capacity retention than the pristine battery at 0.5 C after 100 *** work presents that this gelatin-based bi-functional interlayer provides a viable strategy for the manufacturing of advanced Li-S batteries.

关键词： Bifunctional layer Gelatin-based fibers Shuttle effect artificial SEI Lithium-sulfur battery

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