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InP/InGaAsP/InGaAs场助近红外光电阴极理论建模和特性分析

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半导体技术 2024年第9期49卷 806-812,817页

作者：李想邓伟婷邓文娟彭新村周书民邹继军东华理工大学机械与电子工程学院南昌330013 东华理工大学核物理与核技术江西省重点实验室南昌330013

场助光电阴极可以有效提高长波阈值处的外量子效率,在近红外波段中有着较为广泛的应用。设计了pn结型n-InP/p-InGaAsP/p-InGaAs场助光电阴极,通过电流连续性方程建立其电子发射模型,在该模型基础上调整各层参数进行仿真,获得电子发射电... 详细信息

场助光电阴极可以有效提高长波阈值处的外量子效率,在近红外波段中有着较为广泛的应用。设计了pn结型n-InP/p-InGaAsP/p-InGaAs场助光电阴极,通过电流连续性方程建立其电子发射模型,在该模型基础上调整各层参数进行仿真,获得电子发射电流并计算外量子效率。分析外加电压、外延层掺杂浓度及厚度、基极电极宽度、发射面宽度及发射层材料等因素对外量子效率的影响,最终确定外量子效率达到峰值时各层最佳参数。结果表明:n型InP接触层、P型In_(0.75)Ga_(0.2)O_(45)As_(0.45)P发射层和p型In_(0.53)_Ga_(0.47)As吸收层的最佳掺杂浓度分别为1×10^(19)、2×10^(18)和4×10^(17)cm^(-3),厚度分别为0.2μm、50nm和3um;综合考虑仿真结果和工艺制备条件,基极电极宽度最佳范围为1~2μm,发射面宽度最佳范围为5~8μm。外加6V电压时,1.65μm波长处外量子效率理想峰值为41%。

关键词：光电阴极场助 InGaAsP 近红外外量子效率

Progress and challenges of prelithiation technology for lithium-ion battery

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Carbon Energy 2022年第6期4卷 1107-1132页

作者： Zhenyu huang Zhe Deng Yun Zhong Mingkang Xu Sida Li Xueting Liu Yu Zhou Kai huang Yue Shen Yunhui huang State Key Laboratory of Material Processing and Die&Mould Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhanHubeiPeople's Republic of China Battery&Acoustics Research Center Jiangsu Jitri-Hust Intelligent Equipment Technology Co.Ltd.WuxiJiangsuPeople's Republic of China Battery&Acoustics Research Center Hust-Wuxi Research InstituteWuxiJiangsuPeople's Republic of China

Prelithiation technology is widely considered a feasible route to raise the energy density and elongate the cycle life of lithium-ion *** principle of prelithiation is to introduce extra active Li ions in the battery so that the lithium loss during the first charge and long-term cycling can be *** an effect does not need to change the major electrode material or battery structure and is compatible with the majority of current lithium-ion battery production *** this stage,various prelithiation methods have been reported,some of which are already in the pilot-scale production *** there is still no definitive development roadmap for *** this review,we first introduce the influence of prelithiation on electrochemical performance from a theoretical point of view and then compare the pros and cons of different prelithiation methods in different battery manufacturing ***,we discuss the challenges and future development trends of *** aim to build up a bridge between academic research and industrial *** engineering problems in the promotion of prelithiation technique are extensively discussed,including not only the implementation of prelithiation but also some collateral issues on battery designing and management.

关键词： cycle life electrochemistry initial coulombic efficiency lithium-ion battery prelithiation

Water Supply Route Optimization for Reservoir Emergency Based on Improved Ant Colony Algorithm

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Water Supply Route Optimization for Reservoir Emergency Base...

Synthesis,structure and photoluminescent property of a novel potassic compound

第26届中国控制与决策会议

作者： Du xiang-run ZHANG Jian-long Feng Min-quan Institute of Water Conservancy and Hydroelectric Power Xi'an University of Technology Shanxi Province water conservancy construction and development centers

ISBN: (纸本)9781479937066

In order to improve water supply in the path optimization problems, an improved Ant Colony based on the mathematical model of water supply is put forward to figure out optimization algorithm. Using the improved ant colony algorithm research water supply pipe network optimization problems. The inspire information was normalized process and the global strategy preferred node probability select based on the the introduced virtual path distance to the initial node in telection strategy. In the tpdate strategy, used local and global pheromone update and combined adaptive adjustment of the ants number and increased random interference improvement. The results show that the improved ant colony algorithm calculated better than basic ant colony algorithm from the each indicators. It can be seen the improved algorithm can improve the global search ability and convergence speed, can be quickly and effectively to solve the optimal solution path or near optimal solution of water supply. It can provide reference for the choice of the path of water supply.

关键词： Water resources development path optimization Improved ant colony algorithms Ba Jiazui reservoir emergency water supply

来源： cnki会议评论

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Chinese Chemical Letters 2007年第12期18卷 1539-1542页

作者： Guang xiang Liu Liang Fang huang Heng Xu Xiao Ming Ren College of Chemistry and Chemical Engineering Anqing Normal University Anqing Anhui 246003 PR China

A novel 3D coordination compound of K（H2TDA）（H20）（1）（H3TDA = 1H-1,2,3-triazole-4,5-dicarboxylic acid） has been prepared and characterized by IR spectroscopy, elemental analysis, ICP and single-crystal X-ray ... 详细信息

关键词： Coordination compound Potassic compound Photoluminescent property

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辽朝春捺钵文化元素在泰来大米包装设计中的应用

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绿色包装 2024年第6期 105-108页

作者：孙立梅蹇志豪黄金铭王璐赵新宇穆贺伟李相瑾白城师范学院历史文化学院吉林白城137000

黑龙江泰来大米有“千年水稻,百年贡米”的美誉,但大米包装大多设计滞后。生态农业品牌“洮原地”大米的产地黑龙江泰来,曾经作为辽朝的春捺钵之地,因此可以在其包装设计上凸显地域特色文化。把辽朝春捺钵文化融入到“洮原地”大米包装... 详细信息

黑龙江泰来大米有“千年水稻,百年贡米”的美誉,但大米包装大多设计滞后。生态农业品牌“洮原地”大米的产地黑龙江泰来,曾经作为辽朝的春捺钵之地,因此可以在其包装设计上凸显地域特色文化。把辽朝春捺钵文化融入到“洮原地”大米包装设计中,从材质、图案、色彩、文字等方面,使用辽朝春捺钵文化元素进行创意设计,不仅能够塑造特色鲜明的地域品牌包装,提升产品价值,也能够提升大米包装设计文化内涵,使中国优秀传统文化滋养生活。

关键词：黑龙江 “洮原地”大米辽朝春捺钵包装设计

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Experimental Investigation on the Pressure Propagation Mechanism of Tight Reservoirs

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Fluid Dynamics & Materials Processing 2020年第3期16卷 425-440页

作者： Jing Sun Dehua Liu xiang Zhu Wenjun huang Liang Cheng Yangtze University Petroleum Engineering CollegeWuhanChina Hubei Cooperative Innovation Center of Unconventional Oil and Gas WuhanChina Hubei Shale Gas Development Engineering Technology Research Center WuhanChina

Low permeability tight sandstone reservoirs have a high filtrational resistance and a very low fluid flow *** a result,the propagation speed of the formation pressure is low and fluid flow behaves as a non-Darcy flow,which typically displays a highly non-linear *** this paper,the characteristics and mechanism of pressure propagation in this kind of reservoir are revealed through a laboratory pressure propagation experiment and through data from an actual tight reservoir *** main performance mechanism is as follows:A new pressure cage concept is proposed based on the pressure variation characteristics of the laboratory *** are two methods of energy propagation in the actual water injection process:one is that energy is transmitted to the deep reservoir by the fluid flowing through the reservoir,and the other is that energy is transmitted by the elasticity of the *** one injection well model and one production well model,the pressure distribution curve between the injection and production wells,as calculated by the theoretical method,has three section types,and they show an oblique“S”shape with a straight middle ***,the actual pressure distribution curve is nonlinear,with an obvious pressure advance at the *** the injection pressure increases to a certain level,the curve shape is an oblique and reversed“S”*** on the research,this paper explains the deep-seated reasons for the difference in pressure distribution and proposes that it is an effective way to develop low permeability tight reservoirs using the water injection supplement energy method.

关键词： Low permeability tight reservoir pressure propagation pressure cage formation energy

Remarkably Enhanced Hydrogen Oxidation Reaction Activity of Carbon-supported Pt by Facile Nickel Modification

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Chemical Research in Chinese Universities 2020年第1期36卷 105-109页

作者： huang Xuewei long Chang HAN Jianyu ZHANG Jing QIU Xueying TANG Zhiyong College of Chemistry Zhengzhou UniversityZhengzhou 450001P.R.China CAS Key Laboratory of Nanosystem and Hierarchical Fabrication CAS Center for Excellence in NanoscienceNational Center for Nanoscience and TechnologyBeijing 100190P.R.China School of Materials Science and Engineering Harbin Institute of TechnologyHarbin 150080P.R.China Institute of Applied Chemistry Shanxi UniversityTaiyuan 030006P.R.China

Developing high activity catalysts for hydrogen oxidation reaction(HOR)under alkaline condition remains a challenge in the exchange membrane fuel cell(AEMFC).Herein,we report that the activity of carbon-supported platinum(Pt/C)towards the hydrogen oxidation reaction(HOR)in alkaline media can be remarkably enhanced by simple immersion of Pt/C in nickel chloride *** adsorption of hydrogen on the catalyst surface is weakened by modification of *** HOR activity on the Pt/C after immersion possesses an excellent mass current density of 33.4 A/gmetal,which is 18%higher than that(28.3 A/gmetal)on Pt/C.

关键词： Electrocatalyst Hydrogen oxidation Pt/C Modified nickel

New-Onset Geriatric Epilepsy in China:A Single-Center Study

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Chinese Medical Journal 2018年第24期131卷 2915-2920页

作者： Jian-Hua Chen xiang-Qin Zhou Qiang Lu Li-Ri Jin Yan huang Department of Neurology Peking Union Medical College HospitalChinese Academy of Medical Sciences and Peking Union Medical College Beijing 100730China

Background:Few studies have been published on new-onset geriatric epilepsy especially in older Chinese *** study was to have a comprehensive understanding of new-onset geriatric epilepsy and find a more reasonable diagnosis and management of epilepsy in older people. Methods:One hundred and three patients with onset age 60 years and older were admitted between January 2008 and December 2016. Electronic medical records were reviewed to collect information. Results:There were 103 older patients with new-onset *** mean age of the patients was 68.5±6.4 years (range:60-89 years), and there were 67 (65%)men and 36 (35%)*** mean onset age was 67.9 ±6.2 years (range:60-89 years).The most common identifiable etiology of symptomatic seizures was autoimmune epilepsy in 43 (41.7%)*** second most common etiology was stroke in 15 (14.6%)*** (6.8%)older patients with acute seizures present with status epilepticus and 26 (25.2%)patients experienced clustered seizures (more than three events in 24 h)at seizure *** seizures (96.1%)were more common than generalized seizures (3.9%).Fifty-three (51.5%)patients had an abnormal brain magnetic resonance imaging (MRI)*** them, video-electroencephalogram findings in 31 (30.1%)patients correlated with MRI *** was the most used drugs before admission,in hospital,and during follow-up. Conclusions:Autoimmune encephalitis is becoming an increasing risk factor of subsequent epilepsy in older *** patients with new epilepsy are more likely to respond to antiepileptic drugs,and drug-resistant epilepsy is uncommon.

关键词： Elderly Electroencephalography Epilepsy Seizures

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添加毛叶苕子对红壤旱地土壤真菌群落的影响

微生物学报 2024年第2期64卷 581-596页

作者：赵竟茹晏蒙吴远诺刘天赐李绍兵冷珂项兴佳刘佳安徽大学资源与环境工程学院安徽合肥230601 安徽省湿地生态保护与恢复重点实验室安徽合肥230601 江西省农业科学院土壤肥料与资源环境研究所江西南昌330200

【目的】长期高强度的连作及大量化肥施用导致红壤旱地退化和土传植物病原菌累积。真菌是农业生态系统中与土壤健康密切相关的微生物。本文通过研究土壤真菌群落的变化,探究施用毛叶苕子对红壤旱地农业生态系统的影响。【方法】采用定... 详细信息

【目的】长期高强度的连作及大量化肥施用导致红壤旱地退化和土传植物病原菌累积。真菌是农业生态系统中与土壤健康密切相关的微生物。本文通过研究土壤真菌群落的变化,探究施用毛叶苕子对红壤旱地农业生态系统的影响。【方法】采用定量聚合酶链式反应和高通量测序技术,研究红壤旱地真菌群落对单施矿质肥(mineral nitrogen,phosphorus and potassium fertilization,NPK)与矿质肥配施毛叶苕子(mineral nitrogen,phosphorus and potassium fertilization with hairy vetch,NPKG)2种施肥措施的响应。【结果】与对照NPK相比,NPKG显著提高土壤肥力、花生产量和土壤真菌丰度,降低土壤p H和土壤真菌多样性。不同处理显著改变土壤真菌群落组成。与对照NPK相比,NPKG处理土壤腐生营养型真菌相对丰度显著提高37.42%,花生尾孢菌(Cercospora arachidicola)和可可毛色二孢菌(Lasiodiplodia theobromae)2种花生病原菌相对丰度分别降低89.11%和88.10%。【结论】施用毛叶苕子显著提高了红壤旱地肥力,降低了花生土传病害风险,提高了花生作物产量。因此,施用毛叶苕子有利于我国南方红壤旱地的可持续发展。

关键词：绿肥农业生态系统真菌群落植物病原菌红壤旱地

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