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‘清香核桃’引种栽培试验研究

湖北林业科技 2014年第4期43卷 13-15,82页

作者：熊冬连周伟国周必成王毅韩永平陈代雄湖北省林业科技推广中心武汉430079 湖北省林业厅林木种苗管理总站武汉430079 宜昌市夷陵区林业局宜昌443100 宜昌市夷陵区东灵秀水专业合作社宜昌443100

为了发展湖北省核桃产业,2002年引进6个核桃优良品种,通过多年的引种栽培区域对比试验研究,综合比较各核桃品种的特性,试验结果表明:‘清香核桃’表现出生长势旺、适应性广、抗病性强、丰产性能好、坚果外形美观等优良性状,是适合湖北... 详细信息

为了发展湖北省核桃产业,2002年引进6个核桃优良品种,通过多年的引种栽培区域对比试验研究,综合比较各核桃品种的特性,试验结果表明:‘清香核桃’表现出生长势旺、适应性广、抗病性强、丰产性能好、坚果外形美观等优良性状,是适合湖北省推广的优良核桃品种。

关键词：清香核桃引种栽培

微波段可调控超材料技术研究进展及其应用现状

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电子元件与材料 2016年第10期35卷 1-5页

作者：李宝毅赵亚娟周必成王蓬张榕中国电子科技集团公司第三十三研究所山西太原030006 电磁防护材料及技术山西省重点实验室山西太原030006

可调控超材料通过对单元结构和基体参数的调节实现对电磁场的实时调制,在吸波材料、微波器件、新型天线等领域具有广阔的应用前景。本文从电路研究的观点对超材料可调控的原理进行了解释,并综述了超材料实现可调控的手段及其研究进展,... 详细信息

可调控超材料通过对单元结构和基体参数的调节实现对电磁场的实时调制,在吸波材料、微波器件、新型天线等领域具有广阔的应用前景。本文从电路研究的观点对超材料可调控的原理进行了解释,并综述了超材料实现可调控的手段及其研究进展,介绍了超材料可调控技术的应用情况,最后探讨了可调控超材料技术存在的问题及发展趋势。

关键词：超材料可调控综述吸波材料微波器件天线进展

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三峡库区马褂木水源涵养林复合经营模式研究

湖北林业科技 2013年第5期42卷 30-32页

作者：熊冬连朱功良周必成黎曙光陈代雄湖北省林业科技推广中心武汉430079 湖北省林业厅林木种苗管理总站武汉430079 夷陵区林业局宜昌443100

马褂木是重要的绿化、用材和水源涵养林兼用树种。三峡库区栽培面积已超过2 400 hm2。本文通过分析8种复合经营模式的效益,来综合评价不同的复合经营模式。通过对比分析,复合经营的马褂木胸径生长量年均提高10%以上。复合经营的马褂木-... 详细信息

马褂木是重要的绿化、用材和水源涵养林兼用树种。三峡库区栽培面积已超过2 400 hm2。本文通过分析8种复合经营模式的效益,来综合评价不同的复合经营模式。通过对比分析,复合经营的马褂木胸径生长量年均提高10%以上。复合经营的马褂木-桔梗模式、马褂木-白术模式的年收入最高,投入大;而柴胡、黄芪和黑豆投入小、种植技术比较好掌握。试验出的几种模式可减少土壤侵蚀量33.3%,生态效益显著。根据推广应用前景,结合药材市场需求种植,提高土地利用率和单位面积产出,促进林农增收。

关键词：马褂木水源涵养林复合经营

典型信息系统高功率微波扰乱效应监测方法研究

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信息技术与信息化 2024年第7期 122-125页

作者：田祥宗吴双王武斌李艳玲周必诚中国电子科技集团公司第三十三研究所山西太原030032 中国工程物理研究院应用电子学研究所高功率微波技术重点实验室四川绵阳621900 中国工程物理研究院复杂电磁环境科学与技术重点实验室四川绵阳621900

针对典型信息系统的高功率微波扰乱效应表征问题,以数字通信系统为主线,构建系统模型,分析了高功率微波环境可能对数字通信系统的影响,以及出现扰乱效应的具体表征,提出了基于数据流的扰乱效应监测方法,并开展了试验验证。研究表明,基... 详细信息

针对典型信息系统的高功率微波扰乱效应表征问题,以数字通信系统为主线,构建系统模型,分析了高功率微波环境可能对数字通信系统的影响,以及出现扰乱效应的具体表征,提出了基于数据流的扰乱效应监测方法,并开展了试验验证。研究表明,基于数据流的敏感监测机制可进一步捕获和解析典型信息系统在高功率微波作用时的具体状态与影响,可为判别影响等级、效应机理分析以及防护等提供理论支撑与依据。

关键词：数字通信系统强电磁脉冲数据流监测方法电磁环境效应

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吸波材料强电磁环境效应研究

安全与电磁兼容 2022年第6期 19-25页

作者：王东红张晗周必成王富生马襄腾李克训贾琨中国电子科技集团公司第三十三研究所电磁防护材料及技术山西省重点实验室西北工业大学力学与土木建筑学院

以高功率微波电磁脉冲为代表的强电磁环境使得吸波材料的使用环境发生了极大改变,常规吸波材料因其低功率容量已不适用于大功率微波器件。文章综述了吸波材料强电磁环境效应的研究进展以及作者团队在该领域的主要研究成果。分析了吸波... 详细信息

以高功率微波电磁脉冲为代表的强电磁环境使得吸波材料的使用环境发生了极大改变,常规吸波材料因其低功率容量已不适用于大功率微波器件。文章综述了吸波材料强电磁环境效应的研究进展以及作者团队在该领域的主要研究成果。分析了吸波材料强电磁环境效应作用原理,采用仿真与实测结合的方式研究了强电磁环境下吸波材料的失效模式。结果表明,强电磁环境下的击穿效应、热效应及非线性效应是导致羰基铁/碳粉填充吸波橡胶失效的主要原因,而吸波超材料的周期结构优化、介质层高导热特性均有利于表面电流分布的均匀性,进而改善强电磁环境效应。最后提出了高功率微波电磁脉冲环境下吸波材料研究发展展望。

关键词：吸波材料超材料强电磁环境效应高功率微波电磁脉冲(HPM)

S-scheme heterojunction photocatalysts for CO_(2) conversion: Design, characterization and categories

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Energy Reviews 2023年第4期2卷 63-80页

作者： Aiyun Meng bicheng Zhu Yucun Zhong Shuang zhou Peigang Han Yaorong Su College of New Materials and New Energies Shenzhen Technology UniversityShenzhenPR China'Laboratory of Solar FuelFaculty of Materials Science and ChemistryChina University of Geosciences68 Jincheng StreetWuhan430078PR China

Photocatalytic CO_(2) conversion into valuable hydrocarbon fuels via solar light is a promising strategy to simul-taneously address energy shortage and environmental ***,the photocatalytic CO_(2) reduction performance is too poor to be practically utilized due to the rapid recombination of photogenerated charge *** step-scheme(S-scheme)heterojunction photocatalysts can facilitate the charge separation and maximize the redox ability,thus remarkably enhancing the photocatalytic CO_(2) reduction *** review summarizes the progress of S-scheme heterojunction photocatalysts applied in the photocatalytic CO_(2) reduction ***,we introduce the fundamental design principles and characterization *** direct and indirect techniques to confirm the S-scheme charge transfer mechanism are ***,we divide S-scheme composite photocatalyst into the following categories depending on their compositions:g-C_(3)N_(4)-based,metal-chalcogenide-based,TiO_(2)-based,bismuth-based,other metal oxide-based and other semiconductor-based S-scheme *** synergistic effect of the S-scheme charge transfer pathway as well as the unique intrinsic properties of semiconductor materials on the photocatalytic CO_(2) reduction performance is discussed in ***,concluding perspectives on the challenges and opportunities for the further exploration of highly efficient S-scheme photocatalysts in photocatalytic CO_(2) conversion are presented.

关键词： Step-scheme heterojunction Photocatalyst CO_(2)reduction Characterization techniques

Nsp2 and GP5-M of Porcine Reproductive and Respiratory Syndrome Virus Contribute to Targets for Neutralizing Antibodies

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Virologica Sinica 2019年第6期34卷 631-640页

作者： Jia Su Lei zhou bicheng He Xinhui Zhang Xinna Ge Jun Han Xin Guo Hanchun Yang Key Laboratory of Animal Epidemiology of the Ministry of Agriculture College of Veterinary Medicine and State Key Laboratory of Agrobiotechnology China Agricultural University

Porcine reproductive and respiratory syndrome virus(PRRSV)is characterized by its genetic variation and limited cross protection among heterologous *** though several viral structural proteins have been regarded as inducers of neutralizing antibodies(NAs)against PRRSV,the mechanism underlying limited cross-neutralization among heterologous strains is still *** the present study,examinations of NA cross reaction between a highly pathogenic PRRSV(HP-PRRSV)strain,JXwn06,and a low pathogenic PRRSV(LP-PRRSV)strain,HB-1/3.9,were conducted with viral neutralization assays in MARC-145 *** of the JXwn06-hyperimmuned pigs’sera could neutralize HB-1/3.9 in vitro and vice *** address the genetic variation between these two viruses that are associated with limited crossneutralization,chimeric viruses with coding regions swapped between these two strains were *** neutralization assays indicated that variations in nonstructural protein 2(nsp2)and structural proteins together contribute to weak cross-neutralization activity between JXwn06 and HB-1/***,we substituted the nsp2-,glycoprotein2(GP2)-,GP3-,and GP4-coding regions together,or nsp2-,GP5-,and membrane(M)protein-coding regions simultaneously between these two viruses to construct chimeric viruses to test cross-neutralization reactivity with hyperimmunized sera induced by their parental *** results indicated that the swapped nsp2 and GP5-M viruses increased the neutralization reactivity with the donor strain antisera in MARC-145 *** together,these results show that variations in nsp2 and GP5-M correlate with the limited neutralization reactivity between the heterologous strains HP-PRRSV JXwn06 and LP-PRRSV HB-1/3.9.

关键词： Porcine reproductive and respiratory syndrome virus(PRRSV) Neutralizing antibody(NA) Non-structural protein 2(nsp2) Structural proteins(SPs)

S-scheme heterojunction photocatalyst for H_(2)evolution coupled with organic oxidation

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Chinese Journal of Structural Chemistry 2024年第8期43卷 1-2页

作者： bicheng Zhu Jingsan Xu School of Chemistry and Physics Queensland University of TechnologyBrisbaneQLD4000Australia Laboratory of Solar Fuel Faculty of Materials Science and ChemistryChina University of Geosciences68 Jincheng StreetWuhan430078PR China

Photocatalytic H_(2)production has attracted considerable attention because of its tremendous potential in the alleviation of energy ***,the H_(2)production rate of single photocatalysts is severely inhibited by the speedy recombination of photogenerated electrons and *** remedy this problem,sacrificial agents such as ethanol and methanol are introduced to eliminate holes and boost the H_(2)production ***,these organic agents are valuable fuels,and their consumption increases the cost and reduces the economic benefit of photocatalytic H_(2)production.A preeminent strategy to settle this quandary is coupling H_(2)generation with desired organic synthesis.

关键词： eliminate methanol scheme

Plateau pikas near roads are bold and silent when facing a potential predator

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Current Zoology 2023年第5期69卷 552-558页

作者： bicheng Zhua Jiapeng Qu Jianguo Cui CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization&Ecological Restoration and Biodiversity Conservation Key Laboratory of Sichuan Province Chengdu Institute of BiologyChinese Academy of SciencesChengdu 610041SichuanChina Key Laboratory of Adaptation and Evolution of Plateau Biota Northwest Institute of Plateau BiologyChinese Academy of SciencesQinghai 810008China Qinghai Haibei National Field Research Station of Alpine Grassland Ecosystem Qinghai 810008China

Human disturbance,particularly road traffic,is one of the greatest threats to *** the association between alerting behavior and the survival of animals,it is important to study the effects of road traffic on alerting behavior of *** studies assessing the shortterm impact of road traffic on alerting behavior of wildlife have focused on vigilance ***,studies on the use of alarm calls are scarce,and it is unclear whether such behavioral responses change after repeated exposure to road *** assessed the alerting behavior of plateau pikas(Ochotona curzoniae)who were near or far from roads when facing a potential *** found that pikas near roads exhibited shorter vigilance and tolerance distances,and produced fewer alarm calls than those relatively far away from ***,both vigilance and tolerance distances of plateau pikas were significantly positively correlated with the distance from the burrow to the *** traffic reduced antipredator responses and shaped alerting behavior;that is,pikas near roads were bolder and more silent compared to those far away from *** findings suggest that increasing urbanization will have corresponding effects on animal behavior,which may have significant fitness effects in the future.

关键词： alarm call flight initiation distance plateau pika Qinghai-Tibet Plateau road traffic vigilant behavior