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| 1 | Progress on design and related R&D activities for the water-cooled breeder blanket for CFETR显示文摘The water-cooled ceramic breeder (WCCB) blanket is one of the blanket candidates for Chinese fusion engineering testing reactor (CFETR) and is being developed at the Institute of Plasma Physics, Chinese Academy of Sciences (ASIPP). This paper reviews design and evolution of the WCCB blanket for CFETR, and presents a new WCCB blanket design according to the latest CFETR core parameters (major and minor radii are R = 7.2 m and a = 2.2 m, respectively) and missions. This new design is expected to satisfy multiple CFETR operation modes of 0.2, 0.5, 1.0, and 1.5 GW fusion power and achieve tritium self-sufficiency. The feasibility of the updated blanket design is evaluated from the aspects of neutronics and thermo-hydraulics. Furthermore, the research and development (R&D) activities supporting to the WCCB blanket for CFETR are reported, including the design code, the water loop experiments, the pebble bed modeling and experiments, and the components fabrication technology. | Songlin Liu Xiaoman Cheng Xuebin Ma Lei Chen Kecheng Jiang Xia Li Hui Bao Jichao Wang Wanjing Wang Changhong Peng Peng Lu Min Li Kai Huang | 2019 | Theoretical & Applied Mechanics Letters2019,9,3: | 6 |
| 2 | Weapons equipment portfolios selection based on equipment system contribution rates显示文摘Equipment selection is an essential work in the research and development planning of equipment.The scientific and rational development of weapons equipment portfolios is of considerable significance to the optimization of equipment architecture design,the adequate resources allocation,and the joint combat performance.From the system view,this paper proposes a method of weapons equipment portfolios selection(WEPS)based on the contribution rate of weapon systems,providing a new idea for weapon equipment portfolio selection.Firstly,we analyze the WEPS problem and the concept of the contribution rate under the systems background.Secondly,we propose a combat network modeling method for weapon equipment systems based on the function chain.Thirdly,we propose a WEPS method based on the contribution rate,fully considering the correlation relationships between potential weapons and the old weapon systems by the combat network model,under the limitation of capability demands and budget resources,with the objective to maximally increasing the combat ability of weapon systems.Finally,we make a case study with a specific WEPS problem where the whole calculation processes and results are analyzed and exhibited to verify the feasibility and effectiveness of the proposed method model. | LIU Peng LI Jichao XIA Boyuan ZHAO Danling TAN Yuejin | 2021 | Journal of Systems Engineering and Electronics2021,32,3: | 3 |
| 3 | Applications of diffusion-weighted MRI in thoracic spinal cord injury without radiographic abnormality显示文摘 | Huiyong Shen Yong Tang Lin Huang Rui Yang Yanfeng Wu Peng Wang Yupeng Shi Xiaoyu He Hu Liu Jichao Ye | 2007 | International Orthopaedics2007,,3: | 1 |
| 4 | A deep reinforcement learning method for multi-stage equipment development planning in uncertain environments显示文摘Equipment development planning(EDP)is usually a long-term process often performed in an environment with high uncertainty.The traditional multi-stage dynamic programming cannot cope with this kind of uncertainty with unpredictable situations.To deal with this problem,a multi-stage EDP model based on a deep reinforcement learning(DRL)algorithm is proposed to respond quickly to any environmental changes within a reasonable range.Firstly,the basic problem of multi-stage EDP is described,and a mathematical planning model is constructed.Then,for two kinds of uncertainties(future capabi lity requirements and the amount of investment in each stage),a corresponding DRL framework is designed to define the environment,state,action,and reward function for multi-stage EDP.After that,the dueling deep Q-network(Dueling DQN)algorithm is used to solve the multi-stage EDP to generate an approximately optimal multi-stage equipment development scheme.Finally,a case of ten kinds of equipment in 100 possible environments,which are randomly generated,is used to test the feasibility and effectiveness of the proposed models.The results show that the algorithm can respond instantaneously in any state of the multistage EDP environment and unlike traditional algorithms,the algorithm does not need to re-optimize the problem for any change in the environment.In addition,the algorithm can flexibly adjust at subsequent planning stages in the event of a change to the equipment capability requirements to adapt to the new requirements. | LIU Peng XIA Boyuan YANG Zhiwei LI Jichao TAN Yuejin | 2022 | Journal of Systems Engineering and Electronics2022,33,6: | 0 |
| 5 | Three-Dimensional N-Doped Carbon Nanotube/Graphene Composite Aerogel Anode to Develop High-Power Microbial Fuel Cell显示文摘Optimizing the structure of electrode materials is one of the most effective strategies for designing high-power microbial fuel cells(MFCs).However,electrode materials currently suffer from a series of shortcomings that limit the output of MFCs,such as high intrinsic resistance,poor electrolyte wettability,and low microbial load capacity.Here,a three-dimensional(3D)nitrogen-doped multiwalled carbon nanotube/graphene(N-MWCNT/GA)composite aerogel is synthesized as the anode for MFCs.Comparing nitrogen-doped GA,MWCNT/GA,and N-MWCNT/GA,the macroporous hydrophilic N-MWCNT/GA electrode with an average pore size of 4.24μm enables high-density loading of the microbes and facilitates extracellular electron transfer with low intrinsic resistance.Consequently,the hydrophilic surface of N-MWCNT can generate high charge mobility,enabling a high-power output performance of the MFC.In consequence,the MFC system based on N-MWCNT/GA anode exhibits a peak power density and output voltage of 2977.8 mW m^(−2)and 0.654 V,which are 1.83 times and 16.3%higher than those obtained with MWCNT/GA,respectively.These results demonstrate that 3D N-MWCNT/GA anodes can be developed for high-power MFCs in different environments by optimizing their chemical and microstructures. | Shixuan Jin Yiyu Feng Jichao Jia Fulai Zhao Zijie Wu Peng Long Feng Li Huitao Yu Chi Yang Qijing Liu Baocai Zhang Hao Song Wei Feng | 2023 | Energy & Environmental Materials2023,6,3: | 0 |
| 6 | Glycolysis and acute lung injury:A review显示文摘Acute lung injury is featured as diffuse pulmonary edema and persistent hypoxemia caused by lung or systemic injury.It is believed that these pathological changes are associated with damage to the alveolar epithelium and vascular endothelium,recruitment of inflammatory cells,and inflammatory factor storms.In recent years,the metabolic reprogramming of lung parenchymal cells and immune cells,particularly alterations in glycolysis,has been found to occur in acute lung injury.Inhibition of glycolysis can reduce the severity of acute lung injury.Thus,this review focuses on the interconnection between acute lung injury and glycolysis and the mechanisms of interaction,which may bring hope for the treatment of acute lung injury. | Yang Yi Jun Chen Nan Li Yue Huang Jichao Peng Xiaoran Liu | 2023 | Asian Pacific Journal of Tropical Medicine2023,16,11: | 0 |
| 7 | Simulation of Supercritical Carbon Dioxide Fracturing in Shale Gas Reservoir显示文摘In order to fracture shale gas reservoir with carbon dioxide as the working fluid,laboratory experiments were firstly conducted to measure the influence of carbon dioxide immersion on shale rock's properties,and then the coupling mechanism between stress and seepage during hydraulic fracturing was simulated based on cohesive zone model.The fracturing ability of carbon dioxide and water was also compared under the same working conditions,and finally sensitivity analysis(including elastic modulus of shale,filtration coefficient,pump rate and viscosity of carbon dioxide)were conducted based on field application.The results show that,the elastic modulus of shale increased by 32.2%,the Poisson's ratio decreased by 40.3%and the compressive strength decreases by 22.9%after geothermal reaction with carbon dioxide under 30 MPa and 335.15 K for 2 hours.Compared with water fracturing,carbon dioxide fracturing induces longer fracture(increased by 25.3%)and narrower fracture(decreased to 40.8%).The fracture tends to get longer and narrower with increasing elastic modulus of shale.As filtration coefficient increases,the maximum width of fracture decreases significantly,whereas the length changes little.Both the length and maximum width of fracture increase with increasing pump rate,however the changing rate of length tends to decrease.The influence of viscosity of carbon dioxide on both fracture width and length is negligible,which validates the stable feasibility of carbon dioxide fracturing in different formation conditions. | SONG Weiqiang NI Hongjian TANG Peng ZHANG Shichuan GAO Jichao ZHANGJunming SHEN Baotang | 2021 | Journal of Thermal Science2021,30,4: | 0 |