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| 1 | Analysis of the effects of mass transfer on heat transfer in the process of moisture exchange across a membrane显示文摘A theoretical study was conducted to investigate the effects of mass transfer on heat transfer in the process of moisture exchange across a membrane and a mathematical model describing the heat transfer with consideration of the effect of mass transfer was developed.A dimensionless variable,ψi,which presents the degree to which the mass transfer affects the heat transfer,was proposed through theoretical analysis.With calculating of this dimensionless variable,the heat transfer coupled with mass transfer can be converted into a conventional heat transfer,making the heat transfer calculation simpler and more easily to understand.On the basis of theoretical analysis,the effects of mass transfer on heat transfer were numerically studied.The results show that,in the case that the temperature gradient and mass transfer are in the same direction,ψi is greater than unity,and the mass transfer acts to enhance the heat transfer;in the case that the temperature gradient and mass transfer are in opposite directions,ψi is less than unity,and the mass transfer works to hinder the heat transfer.When the mass flux is small,the effect of the mass transfer is weak.When the mass flux is large,the heat flux carried by the mass flux has a considerable impact on the heat flux,and ψi,deviates from unity significantly. | HU Teng MIN JingChun SONG YaoZu | 2010 | Chinese Science Bulletin2010，55，12： | 8 |
| 2 | Covalent organic frameworks derived hollow structured N-doped noble carbon for asymmetric-electrolyte Zn-air battery显示文摘We report a relatively low-temperature molten salt strategy to prepare hollow structured N-doped noble carbon(h-NNC) with highly desirable features of ultra-large surface area(1957 m^2 g^(-1)) and high graphitization, endowing the h-NNC with high activity toward catalysis of oxygen reduction reaction in acidic medium. The h-NNC is applied as cathode catalyst of an asymmetrical-electrolyte Zn-air battery, which exhibits an open circuit voltage of 2.11 V, a power density up to 270 mW cm^(-2),and an energy density of 1279 W h kg^(-1), behaving advantages over the conventional Zn-air batteries. | Pingwei Cai Xinxin Peng Junheng Huang Jingchun Jia Xiang Hu Zhenhai Wen | 2019 | Science China Chemistry2019，62，3： | 6 |
| 3 | Analysis of the effects of the heat of sorption on the process of heat transfer in moisture exchange across a membrane显示文摘A theoretical study has been conducted to investigate the effects of mass transfer on heat transfer in moisture exchange across a membrane and a mathematical model describing the heat transfer process with consideration of the heat of sorption was established.A dimensionless variable,Ψ =JLλ /δ(T10-T20),which controls the effect of the heat of sorption on the heat transfer in membrane process,was obtained through theoretical analysis,and the effects of Ψ on the heat transfer process were analyzed.Results showed that in the case that the temperature gradient and mass transfer are in the same direction,the effective heat flux changes the direction at Ψ =1.For Ψ <1,the heat transfers from high to low temperature sides through the membrane,and the total thermal resistance increases with increasing the moisture flux across membrane or reducing the temperature difference between the bulk flows on the two sides of membrane.For Ψ >1,the overall effect of the heat and mass transfer is that the effective heat flux points from low to high temperature sides and the total thermal resistance decreases with increasing the mass flux or reducing the temperature difference.In the case that the tem-perature gradient and mass transfer are in the opposite directions,the existence of the heat of sorption acts to enhance the heat transfer from high to low temperature sides,causing a reduced total thermal resistance,and the greater the mass flux or the smaller the temperature difference,the smaller the total thermal resistance. | Teng Hu JingChun Min YaoZu Song | 2008 | Science China(Technological Sciences)2008，51，12： | 5 |
| 4 | Robust 3D network architectures of MnO nanoparticles bridged by ultrathin graphitic carbon for high-performance lithium-ion battery anodes显示文摘策略被开发与在 ultrathin 嵌入的 MnO nanoparticles (NP ) 制作一套 MnO@C nanohybrids 三维(3D ) 用作为锂离子电池(解放) 的阳极材料的碳框架。3D 碳框架向 MnO NP 提供电的小径和机械坚韧性,它高效地改进了反应动力学,阻止了 MnO 断裂并且聚结,并且限制了在 MnO 电解质接口的一个稳固的电解质接口(SEI ) 的形成。得益于唯一的 3D 框架结构, MnO/C nanohybrids 在 500 点使碳化 ?? 欠慐???? 金 ? 偫 ???????????????? 偫 ??? ??? 猯灵 > 吗? | Jingchun Jia Xiang Hu Zhenhai Wen | 2018 | Nano Research2018，11，2： | 3 |
| 5 | Origin of ground fissures in the Shanxi Graben System,Northern China显示文摘 | Youli Li Jingchun Yang Xiaomeng Hu | 2000 | Engineering Geology2000，，55： | 1 |
| 6 | Moisture permeation through porous membranes 显示文摘 | MIN Jingchun HU Teng | 2011 | Journal of Membrane Science2011，，379： | 1 |
| 7 | Application of fixed- point DSP and 16-bit parallel output A/D and dual-port RAM 显示文摘 | ZHOU Rigui HU Jingchun YE Shuisheng | 2003 | Inter- national Symposium on Test and Measurement2003，，1： | 1 |
| 8 | Protocol for Brain Magnetic Resonance Imaging and Extraction of Imaging‑Derived Phenotypes from the China Phenobank Project显示文摘Imaging-derived phenotypes(IDPs)have been increasingly used in population-based cohort studies in recent years.As widely reported,magnetic resonance imaging(MRI)is an important imaging modality for assessing the anatomical structure and function of the brain with high resolution and excellent soft-tissue contrast.The purpose of this article was to describe the imaging protocol of the brain MRI in the China Phenobank Project(CHPP).Each participant underwent a 30-min brain MRI scan as part of a 2-h whole-body imaging protocol in CHPP.The brain imaging sequences included T1-magnetization that prepared rapid gradient echo,T2 fuid-attenuated inversion-recovery,magnetic resonance angiography,difusion MRI,and resting-state functional MRI.The detailed descriptions of image acquisition,interpretation,and post-processing were provided in this article.The measured IDPs included volumes of brain subregions,cerebral vessel geometrical parameters,microstructural tracts,and function connectivity metrics. | Chengyan Wang Zhang Shi Yan Li Xueqin Xia Xutong Kuang Shufang Qian Le Xue Lizhen Lan Yudan Wu Na Zhang Ji Tao Xumei Hu Wenzhao Cao Naying He Yike Guo Weibo Chen Jun Zhang Jingchun Luo He Wang Mei Tian | 2023 | Phenomics2023，3，6： | 0 |
| 9 | A Fire Escape Simulation System Based on the Dijkstra Algorithm显示文摘Despite the support of all kinds of fire prevention measures and high-tech fire prevention equipment,fires still occur frequently because of both anthro-pogenic factors and natural disasters.This issue has drawn the attention of schools,all levels of government,and other organizations.Many types of organi-zations carry out fire drills throughout the year.Because this kind of drill cannot anticipate the specific circumstances of each fire,which are generally far more complicated than drills,most people cannot correctly choose the optimal escape route from real fires.Thus,a fire-scene virtual simulation system based on the Dijkstra algorithm is here proposed to address such problems as casualties caused by frequent fires and the inability of most people to correctly choose a fire escape route.This virtual fire escape simulation system uses Maya to carry out 3D recon-struction of the fire scene,the Unity engine to conduct interactive function design,and the Dijkstra algorithm to calculate the best escape route.The results of the example indicate that the simulation system solves the problems of the traditional simulation system,such as stiffness,lack of intelligence,and poor simulation. | Haolong Yang Chunqiang Hu Guwei Li Jingchun Fan | 2021 | Computer Systems Science & Engineering2021，39，12： | 0 |
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