Occurrence Pattern of Spodoptera litura in Hunan and its Prediction Methods
作者：
Zeng, Ai-Ping* ;Chen, Yong-nian;Zhang, Qiong;Hu, Ri-sheng;Zhou, Zhi-cheng;...
期刊：
Proceedings of the 2011 6th IEEE Conference on Industrial Electronics and Applications, ICIEA 2011 ,2011年:2628-2632 ISSN：2156-2318
通讯作者：
Zeng, Ai-Ping
作者机构：
[Zeng, Ai-Ping] Hunan Agr Univ, China Tobacco S Expt Stn, Hunan Prov Key Lab Biol & Control Plant Pests, Changsha, Peoples R China.;[Chen, Yong-nian; Zhang, Qiong] Human Agr Univ, Changsha, Peoples R China.;[Hu, Ri-sheng; Zhou, Zhi-cheng] China Tobacco South Expt Stn, Changsha, Peoples R China.;[Long, Jian-zhong] Ningyuan Tobacco Co, Ningyuan, Peoples R China.;[Li, Xiao-yi] Chenzhou Tobacco Co, Chenzhou, Peoples R China.
通讯机构：
[Zeng, Ai-Ping] H;Hunan Agr Univ, China Tobacco S Expt Stn, Hunan Prov Key Lab Biol & Control Plant Pests, Changsha, Peoples R China.
会议名称：
6th IEEE Conference on Industrial Electronics and Applications (ICIEA)
会议时间：
JUN 21-23, 2011
会议地点：
Beijing, PEOPLES R CHINA
会议主办单位：
[Zeng, Ai-Ping] Hunan Agr Univ, China Tobacco S Expt Stn, Hunan Prov Key Lab Biol & Control Plant Pests, Changsha, Peoples R China.^[Chen, Yong-nian;Zhang, Qiong] Human Agr Univ, Changsha, Peoples R China.^[Hu, Ri-sheng;Zhou, Zhi-cheng] China Tobacco South Expt Stn, Changsha, Peoples R China.^[Long, Jian-zhong] Ningyuan Tobacco Co, Ningyuan, Peoples R China.^[Li, Xiao-yi] Chenzhou Tobacco Co, Chenzhou, Peoples R China.^[Wu, Chun-e] Jianghua Tobacco Co, Jianghua, Peoples R China.
会议论文集名称：
IEEE Conference on Industrial Electronics and Applications
关键词：
Spodoptera litura;effective accumulated temperature;Agrotis ypsilon;synchronous migration;forecasting;occurrence trend
摘要：
The occurrence regulation of Spodoptera litura was studied according to the continiuous years's data investigated in tobacco fields and weather data of Chenzhou and Ningyuan in Hunan. Results showed that generations of Spodoptera litura are 4-4.5 with the effective accumulated temperture per year and the actual generations of Spodoptera. litura is in accordance with the predicted generations in Hunan Province. The sources of Spodoptera litura in early stage of the year were migration pest, there were four occurrence stages in a year according the properties of pests sources, the number of trapped moths from April to June is significantly correlated with the number in March, the forecasting model is yˇ=233.54 112.44x<inf>4</inf> (r=0.815 <sup>*</sup>, n=8). The number of trapped moths from April to June is significantly correlated with the daily average temperture of January (reliability degree was 90%), the forecasting model is yˇ=-1410+350x(r=0. 595, n=9). The number of trapped moths of Agrotis ypsilon at its major migration stage (February-April), which synchronously migrated with Spodoptera litura, is significantly correlated with the number of Spodoptera litura in its major migration stage (April-June), and it provide data for the prediction of occurrence trend of Spodoptera. litura. The damage percent is significantly correlated with the number of Spodoptera litura per 100 plants, and the number of Spodoptera. litura per 100 plants at normal control plots as x<inf>1</inf>, the damage percent as y, r=0.977<sup>**</sup> (n=10);the number of Spodoptera litura per 100 plants at observed plots as x<inf>2</inf>, the damage percent as y, r=0.974<sup>**</sup> (n=10). ©2011 IEEE.
语种：
英文
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Applying effect of three forecasting methods for the occurrence trend of Alternaria alternata (Fries) Keissler
作者：
Zeng, Ai-ping* ;Liu, Yang;Zhou, Zhi-cheng;Chen, Yong-nian;Hu, Ri-sheng;...
期刊：
Proceedings of the 2011 6th IEEE Conference on Industrial Electronics and Applications, ICIEA 2011 ,2011年:2408-2414 ISSN：2156-2318
通讯作者：
Zeng, Ai-ping
作者机构：
[Zeng, Ai-ping] Hunan Prov Key Lab Biol & Control Plant Pests, Changsha, Hunan, Peoples R China.;[Liu, Yang; Zhou, Zhi-cheng] Hunan Agricultural Univ, Changsha, Hunan, Peoples R China.;[Hu, Ri-sheng; Wu, Chun-e; Li, Xiao-yi; Long, Jian-zhong; Zhou, Zhi-cheng] China Tobacco South Experimental Stat, Changsha, Hunan, Peoples R China.
通讯机构：
[Zeng, Ai-ping] H;Hunan Prov Key Lab Biol & Control Plant Pests, Changsha, Hunan, Peoples R China.
会议名称：
6th IEEE Conference on Industrial Electronics and Applications (ICIEA)
会议时间：
JUN 21-23, 2011
会议地点：
Beijing, PEOPLES R CHINA
会议主办单位：
[Zeng, Ai-ping] Hunan Prov Key Lab Biol & Control Plant Pests, Changsha, Hunan, Peoples R China.^[Liu, Yang;Zhou, Zhi-cheng] Hunan Agricultural Univ, Changsha, Hunan, Peoples R China.^[Zhou, Zhi-cheng;Hu, Ri-sheng;Long, Jian-zhong;Li, Xiao-yi;Wu, Chun-e] China Tobacco South Experimental Stat, Changsha, Hunan, Peoples R China.
会议论文集名称：
IEEE Conference on Industrial Electronics and Applications
关键词：
Alternaria alternata (Fries) Keissler;disease index;forecasting;anomalous sign;trapping spore;grade-statistics
摘要：
Rainfall (mm) of the second month after transplanting, average temperature (C) at the same period and rainfall days of the first month after transplanting, Rainfall (mm) of June, the daily average temperature of June and rainfall days of June were selected using anomalous sign method from 39 factors from 9 continuous years data at Ningyuan county. Using data of spore trap for 11 continuous years at Chenzhou county. The occurrence trend of Alternaria alternata (Fries) Keissler was studied with the grade-statistics method. and correlation coefficient. Results showed that the back forecasting was in line with the actual value. The accurate percent of forecasting for Alternaria alternata (Fries) Keissle at Yongzhou for 10 years was 90%, the accurate percent of forecasting for Alternaria alternata (Fries) Keissle at different counties for 2009 was 75% with the forecasting model during the early growing stage of tabacco, the accurate percent of forecasting for Alternaria alternata (Fries) Keissle at Yongzhou for 10 years was 80% with the forecasting model during the late growing stage of tabacco;the accurate percent of forecasting for Alternaria alternata (Fries) Keissle at Yongzhou for 10 years was 90% with the both forecasting models and relied on the contributing percent;at different counties was 83.3% for 2009;the number of trapped spore at peak was used as x, the end disease index was used as y, the forecasting model is y=-0.5951+0.04x (r=0.8985* n=11), the span from spore peak to end were 2 d at least, 22 d at most, the average was 8.3 d, so the model can be used as the forecasting of the disease for short period. Both models of the early and the late growing stage can be used to forecast occurrence trend of Alternaria alternata (Fries) Keissler for short-to medium-term. ©2011 IEEE.
语种：
英文
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Isolation from Tannery Wastewater and Characterization of Bacterial Strain Involved in Nonionic Surfactant Degradation
作者：
Yan Binghua* ;Yang Haijun;Wei Jianhong;Luo Lin
期刊：
Advanced Materials Research ,2011年183-185:22-26 ISSN：1022-6680
通讯作者：
Yan Binghua
作者机构：
[Yan Binghua; Luo Lin] Hunan Agr Univ, Coll Resources & Environm, Changsha, Hunan, Peoples R China.;[Yang Haijun] Hunan Agr Univ, Coll BioSafety & Technol, Changsha, Hunan, Peoples R China.;[Wei Jianhong] Hunan Agr Univ, Coll Biosci & Biotechnol, Changsha, Hunan, Peoples R China.
通讯机构：
[Yan Binghua] H;Hunan Agr Univ, Coll Resources & Environm, Changsha, Hunan, Peoples R China.
会议名称：
2011 International Conference on Environmental Biotechnology and Materials
Engineering(2011年环境生物技术与材料工程国际会议)
会议时间：
2011-03-26
会议地点：
哈尔滨
会议主办单位：
Harbin Univ Commerce
会议论文集名称：
2011 International Conference on Environmental Biotechnology and Materials
Engineering(2011年环境生物技术与材料工程国际会议)论文集
关键词：
Nonylphenol ethoxylates;degrading strain;isolation;identification;degradation characteristics
摘要：
A bacterial strain OPQa3 capable of utilizing nonylphenol polyoxyethylene (NPnEO) as sole carbon source was isolated from water samples collected from tannery waste treatment plant suffered long-time application of NPnEO by enrichment method. It was preliminarily identified as Brevundimonas sp. (most similar to Brevundimonas diminuta (EU434566.1)), according to the observation of morphological characteristics, physiological-biochemical tests and the similarity analysis of its 16S rDNA gene sequence. Inoculated 2% of OPQa3 suspension, to give a final OD<inf>600</inf> of approximately 0.70, to inorganic salt medium in which the initial concentration of NPnEO was 746 mg&bullL <sup>-1</sup>, degradation test showed that, the degradation rate of strain OPQa3 was 84.5% within 120 hours, the optimum temperature was 30°C while the optimum pH value was about 7, and the growth period was of 24 hours. ©(2011) Trans Tech Publications.
语种：
英文
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Direct optical resolution of chiral pesticides by high performance liquid chromatography
作者：
Li Xiaogang* ;Liu Yiping;Hu Changdi;Bai Lianyang;Gao Bida;...
期刊：
中国化学工程学报(英文版) ,2011年19(4):603-609 ISSN：1004-9541
通讯作者：
Li Xiaogang
作者机构：
[Liu Yiping; Gao Bida; Bai Lianyang; Li Xiaogang; Hu Changdi] Hunan Agr Univ, Coll Biosafety Sci & Technol, Changsha 410128, Hunan, Peoples R China.;[Hu Changdi] Hunan Inst Control Agrochem, Changsha 410005, Hunan, Peoples R China.;[Bai Lianyang] Hunan Inst Humanities Sci & Technol, Loudi 417000, Peoples R China.;[Huang Kelong] Cent S Univ, Inst Functionalized Mat & Chem, Changsha 410083, Peoples R China.
通讯机构：
[Li Xiaogang] H;Hunan Agr Univ, Coll Biosafety Sci & Technol, Changsha 410128, Hunan, Peoples R China.
关键词：
chiral resolution;high-performance liquid chromatography;indoxacarb;lambda-cyhalothrin;simeconazole;thermodynamical mechanism
摘要：
Enantiomer separation is one of the most important prerequisites for the investigation of environmental enantioselective behavior for chiral pesticides. The enantiomeric separation of three chiral pesticides, indoxacarb, lambda-cyhalothrin, and simeconazole, were studied on cellulose tris-(3,5-dimethylphenyl-carbamate)-coated chiral stationary phase (CDMPC-CSP) using high-performance liquid chromatography under normal phase condition. The effects of chromatographic conditions, such as the mobile phase composition including the concentration and type of alcohol modifiers in hexane, flow rate and column temperature, on enantiomer separation were examined. The thermodynamical mechanism of enantioseparation and chiral recognition mechanism were discussed. Better separation were achieved using 20 n-propanol for indoxacarb, 2 iso-butanol for lambda-cyhalothrin, and 20 iso-propanol for simeconazole as modifiers in hexane at 25 °C with the selectivity factor (a) of 1.69, 1.82 and 1.70, respectively. The resolution factor (Rs) decreased as the flow rate increased from 0.4 to 1.1 ml·min-1. The retention factor (k') and selectivity factor for the enantiomers of analytes decreased as temperature increased. The lna-1/T plots for racemic chiral pesticides were linear in the range of 15-35 °C in hexane/iso-propanol and the chiral separation was controlled by enthalpy. Hydrogen bonding, π-π and dipole-dipole interactions between enantiomers and CDMPC-CSP play an important role in chiral identification, and the fitting of the asymmetric portion of solutes in a chiral cavity or channel of the CSP is also important. © 2011 Chemical Industry and Engineering Society of China (CIESC) and Chemical Industry Press (CIP).
语种：
英文
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Visual detection of barium ions using tiopronin functionalised gold nanoparticles
作者：
Bai, Lian-Yang* ;Zhang, Yu-Ping;Chen, Na;Chen, Jun;Zhou, Xiao-Mao;...
期刊：
Micro & Nano Letters ,2011年6(6):337-341 ISSN：1750-0443
通讯作者：
Bai, Lian-Yang
作者机构：
[Bai, Lian-Yang] Hunan Univ Humanities Sci & Technol, Loudi 417000, Peoples R China.;[Hu, Lin-Feng; Chen, Na; Chen, Jun; Zhang, Yu-Ping] Henan Inst Sci & Technol, Xinxiang 453003, Peoples R China.;[Chen, Jun; Zhou, Xiao-Mao] Hunan Agr Univ, Pesticide Res Inst, Changsha 410128, Hunan, Peoples R China.
通讯机构：
[Bai, Lian-Yang] H;Hunan Univ Humanities Sci & Technol, Loudi 417000, Peoples R China.
摘要：
An efficient visual detection method of Ba
<sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2+</sup>
using tiopronin (Tio)-modified gold nanoparticles (GNPs) in aqueous solution is reported. Tio could bind onto the GNP surfaces through the sulphur atom and the cross-linking of Tio-functionalised GNPs could be quickly accomplished by chelation upon the addition of Ba
<sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2+</sup>
. Colour changes were observed from red to blue (or purple) within minutes with the increased concentration of Ba
<sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2+</sup>
, in response to surface plasmon absorption of dispersed and aggregated nanoparticles. Using this colourimetric sensor, the concentration of Ba
<sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2+</sup>
was determined with a limit of detection lower than 1.5 × 10
<sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">-6</sup>
M by the naked eye and could further be easily monitored by a UV-vis spectrometry. The possible mechanism of the aggregated Tio-GNPs was discussed by the addition of ethylenediaminetetraacetate and Ba
<sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2+</sup>
in different orders.
语种：
英文
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Chiral 1-phenylethylamine-derived phosphine-phosphoramidite ligands for highly enantioselective Rh-catalyzed hydrogenation of beta-(acylamino)acrylates: significant effect of substituents on 3,3 '-positions of binaphthyl moiety
作者：
Zhou, Xiao-Mao;Huang, Jia-Di;Luo, Li-Bin;Zhang, Chen-Lu;Hu, Xiang-Ping* ;...
期刊：
Organic & Biomolecular Chemistry ,2010年8(10):2320-2322 ISSN：1477-0520
通讯作者：
Hu, Xiang-Ping
作者机构：
[Luo, Li-Bin; Zhou, Xiao-Mao] Hunan Agr Univ, Inst Pesticide, Changsha 410128, Hunan, Peoples R China.;[Hu, Xiang-Ping; Huang, Jia-Di; Zheng, Zhuo] Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China.;[Zhang, Chen-Lu] Liaoning Normal Univ, Sch Chem & Chem Engn, Dalian 116029, Peoples R China.
通讯机构：
[Hu, Xiang-Ping] C;Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China.
摘要：
A series of new chiral phosphine-phosphoramidite ligands with a 3,3′-substituted binaphthyl moiety were prepared from 1-phenylethylamine, and successfully applied in the Rh-catalyzed asymmetric hydrogenation of β-(acylamino)acrylates. The research disclosed that the substituents on the 3,3′-positions of binaphthyl moiety significantly influenced the enantioselectivity.
语种：
英文
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Rapid, sensitive and selective detection of pymetrozine using gold nanoparticles as colourimetric probes
作者：
Bai, Lian-Yang* ;Zhang, Yu-Ping;Chen, Jun;Zhou, Xiao-Mao;Hu, Lin-Feng
期刊：
Micro & Nano Letters ,2010年5(5):304-308 ISSN：1750-0443
通讯作者：
Bai, Lian-Yang
作者机构：
[Chen, Jun; Bai, Lian-Yang; Zhou, Xiao-Mao] Hunan Agr Univ, Pesticide Res Inst, Changsha 410128, Hunan, Peoples R China.;[Hu, Lin-Feng; Chen, Jun; Zhang, Yu-Ping] Henan Inst Sci & Technol, Xinxiang 453003, Peoples R China.
通讯机构：
[Bai, Lian-Yang] H;Hunan Agr Univ, Pesticide Res Inst, Changsha 410128, Hunan, Peoples R China.
摘要：
The purpose of this study was to develop a sensitive and low-cost optical sensor for screening pymetrozine using unmodified gold nanoparticles (G NPs). The presence of pymetrozine could rapidly induce the aggregation of G NPs, thereby resulting in red to deep blue colour change. The concentration of pymetrozine was determined with a limit of detection lower than 1×10
<sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">-6</sup>
M by the naked eye and was further easily monitored by a UV-vis spectrometer. The highest selectivity was achieved in comparison with other 11 pesticides and the possible underlying mechanism was investigated in detail by the simultaneous addition of glutathione and pymetrozine in G NPs solution.
语种：
英文
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Enantioseparation using a cellulose-based stationary phase by capillary liquid chromatography
作者：
Zhang, Yi-Jun* ;Zhang, Yu-Ping;Duan, Qi-Rong;Bai, Lian-Yang;Chen, Jun;...
期刊：
Journal of Liquid Chromatography & Related Technologies ,2010年33(19):1733-1744 ISSN：1082-6076
通讯作者：
Zhang, Yi-Jun
作者机构：
[Zhang, Yi-Jun; Chen, Jun; Zhang, Yu-Ping; Duan, Qi-Rong] Henan Inst Sci & Technol, Xinxiang 453003, Peoples R China.;[Chen, Jun; Bai, Lian-Yang; Zhou, Xiao-Mao] Hunan Agr Univ, Pesticide Res Inst, Changsha 410128, Hunan, Peoples R China.
通讯机构：
[Zhang, Yi-Jun] H;Henan Inst Sci & Technol, Xinxiang 453003, Peoples R China.
关键词：
cellulose tris(3;5-dimethylphenylcarbamate);capillary column;capillary liquid chromatography;chiral stationary phases;enantiomer separation;slurry packing
摘要：
A 3,5-dimethylphenylcarbamate derivative of cellulose immobilized onto the aminopropyl-modified silica gel was used as a chiral stationary phase and separation of five enantiomers was successfully performed by a home-made chiral capillary liquid chromatography system. Different chromatographic parameters such as resolution, column efficiency, and retention time were comparatively investigated using three chiral stationary phases with different coatings. The key factors which may influence the performance of the chiral stationary phases were evaluated by varying the composition of the mobile phase and its flow rate. It was illustrated that the self-installed chiral separation system was characterized by simplicity, high resolution, ease for practical usage, and could be handily applied for enantioseparation at the conventional laboratory.
语种：
英文
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钒液流电池用碳纸电极改性的研究
作者：
Liu Su-Qin* ;Shi Xiao-Hu;Huang Ke-Long;Li Xiao-Gang
期刊：
无机材料学报 ,2009年24(4):798-802 ISSN：1000-324X
通讯作者：
Liu Su-Qin
作者机构：
[Shi Xiao-Hu; Huang Ke-Long; Liu Su-Qin] Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Peoples R China.;[Li Xiao-Gang] Hunan Agr Univ, Coll Biosafety Sci & Technol, Changsha 410128, Hunan, Peoples R China.
通讯机构：
[Liu Su-Qin] C;Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Peoples R China.
关键词：
钒液流电池;碳纸;热处理
摘要：
采用红外光谱、单点比表面积检测手段研究了碳纸435℃热处理前后的表面结构和比表面积的变化.并将这类碳纸用作全钒液流氧化还原电池电极材料,对其电化学性能进行了研究.结果表明:热处理10h的碳纸表面有-COOH官能团生成,比表面积显著增大,其电化学活性增强.热处理后的碳纸作为电极组装成的电池在电流密度50mA/cm~2时有良好的充放电性能,平均电流和电压效率达到95%和89%.
语种：
中文
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混杂纤维高强混凝土断裂性能
作者：
高丹盈;王占桥;朱海堂;王宝庭
期刊：
水力发电学报 ,2008年27(1):129-134 ISSN：1003-1243
通讯作者：
Gao, D.(gdy@zzu.edu.cn)
作者机构：
[朱海堂; 王占桥; 高丹盈; 王宝庭] Key Laboratory of Engineering Material and Hydraulic Structure of Henan Province, Zhengzhou University, Zhengzhou 450002, China
通讯机构：
Key Laboratory of Engineering Material and Hydraulic Structure of Henan Province, Zhengzhou University, China
关键词：
建筑材料;断裂性能;断裂韧度;高强混凝土;断裂能;裂缝嘴张开位移;混杂纤维
摘要：
本文通过30个尺寸为200mm×170mm×100mm的混杂纤维高强混凝土试件的楔劈拉伸试验.探讨钢纤维与聚丙烯纤维混杂效应及其对高强混凝土断裂韧度、断裂能和临界裂缝张开位移的影响.试验结果表明:加入纤维改善了高强混凝土的断裂性能.随着钢纤维体积分数(pf)的增加,断裂参数增益比呈线性增加.聚丙烯纤维在小开裂位移条件下.对高强混凝土的开裂有约束作用,该效应随着位移的增加逐渐消失,钢纤维在混杂纤维高强混凝土断裂性能的改善方面起着主导作用.pf=1.5%、聚丙烯纤维掺量Vf=0.6kg/m3为本次试验配合比条件下的最佳纤维掺量组合.本文在试验的基础上,建立了混杂纤维高强混凝土断裂韧度、断裂能和临界裂缝嘴张开位移的计算公式.
语种：
中文
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Research progress of vanadium redox flow battery for energy storage in China
作者：
Huang, Ke-Long* ;Li, Xiao-Gang;Liu, Su-Qin;Tan, Ning;Chen, Li-Quan
期刊：
Renewable Energy ,2008年33(2):186-192 ISSN：0960-1481
通讯作者：
Huang, Ke-Long
作者机构：
[Chen, Li-Quan; Li, Xiao-Gang; Tan, Ning; Huang, Ke-Long; Liu, Su-Qin] Cent S Univ, Sch Chem & Chem Engn, Changsha 410083, Peoples R China.;[Chen, Li-Quan] Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China.;[Li, Xiao-Gang] Hunan Agr Univ, Coll Biosafety Sci & Technol, Changsha 410128, Peoples R China.
通讯机构：
[Huang, Ke-Long] C;Cent S Univ, Sch Chem & Chem Engn, Changsha 410083, Peoples R China.
会议名称：
Symposium on Materials, Devices, and Prospects for Sustainable Energy of the European-Materials-Research-Society Meeting
会议时间：
MAY 29-JUN 02, 2006
会议地点：
Nice, FRANCE
会议主办单位：
[Huang, Ke-Long;Li, Xiao-Gang;Liu, Su-Qin;Tan, Ning;Chen, Li-Quan] Cent S Univ, Sch Chem & Chem Engn, Changsha 410083, Peoples R China.^[Chen, Li-Quan] Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China.^[Li, Xiao-Gang] Hunan Agr Univ, Coll Biosafety Sci & Technol, Changsha 410128, Peoples R China.
关键词：
Energy storage system;Vanadium;Vanadium redox flow battery
摘要：
Principle and characteristics of vanadium redox flow battery (VRB), a novel energy storage system, was introduced. A research and development united laboratory of VRB was founded in Central South University in 2002 with the financial support of Panzhihua Steel Corporation. The laboratory focused their research mainly on the selection and preparation of electrode materials, membrane material and modification, stable concentrated electrolyte producing approach, test cell configuration design and optimization. Some relevant foundation problems, such as state of vanadium in sulfurous acid with various additives, the difference of electrochemical reaction rate in anode and in cathode, the crossover of vanadium ions and so on, have been emphasized. The details of these studies have been given and discussed. A 5 kW VRB stack was fabricated in the laboratory and its performances, especially electrochemical performance such as voltage efficiencies, energy efficiencies, and durability, were fully tested. The results will be shown in the talk. The key technologies of developing VRB, such as to improve the activity of its electrode materials, the stability of electrolyte and selectivity of separator, were also discussed. In addition, the research progresses in other laboratories in China were briefly introduced. ©2007 Elsevier Ltd. All rights reserved.
语种：
英文
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Rapeseed seeds colour recognition by machine vision
作者：
Li Jinwei* ;Liao Guiping;Xiao Fen
期刊：
Proceedings of the 27th Chinese Control Conference, CCC ,2008年:146-149
通讯作者：
Li Jinwei
作者机构：
[Liao Guiping; Li Jinwei] Hunan Agr Univ, Inst Agr Informat, Changsha 410128, Hunan, Peoples R China.;[Xiao Fen] Hunan Agr Univ, Coll Biosafety Sci & Technol, Changsha 410128, Hunan, Peoples R China.
通讯机构：
[Li Jinwei] H;Hunan Agr Univ, Inst Agr Informat, Changsha 410128, Hunan, Peoples R China.
会议名称：
27th Chinese Control Conference, CCC
会议时间：
July 16, 2008 - July 18, 2008
会议地点：
Kunming, Yunnan, China
关键词：
Rapeseed;Seed colour;Colour recognition;Machine vision
摘要：
Rapeseed is one of the important oilseed crop species, and is worldwide the most important economically. The light seed colour in rapeseed is associated with improved oil, protein and fibre contents. But there are not reliable and efficient methods to measure seed colour, especially the single seed colour. Two transformations of RGB (red, green, and blue) colour space were used for two seed colour recognition methods, i.e., HSV (hue, saturation, and value) and nine colour model (NCM). Using these two colour space transformations, the performance of the common method on rapeseed colour recognition was compared with the major colour method. The common method obtained the colour recognition accuracy of 83.96% in single seed recognition and 92.72% in sample recognition. The major colour method obtained the colour recognition accuracy of 98.91% in single seed recognition and 100% in sample recognition. The major colour method combined with HSV and NCM colour space transformation proved to be a good approach for seed colour recognition of rapeseed using machine vision.
语种：
英文
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Multi-KNN-SVR组合预测在含氟化合物QSAR研究中的应用
作者：
Tan Xian-Sheng;Yuan Zhe-Ming* ;Zhou Tie-Jun;Wang Chun-Juan;Xiong Jie-Yi
期刊：
高等学校化学学报 ,2008年29(1):95-99 ISSN：0251-0790
通讯作者：
Yuan Zhe-Ming
作者机构：
[Wang Chun-Juan; Tan Xian-Sheng; Xiong Jie-Yi; Yuan Zhe-Ming] Hunan Agr Univ, Coll Biosafety Sci & Technol, Changsha 410128, Peoples R China.;[Zhou Tie-Jun; Tan Xian-Sheng] Hunan Agr Univ, Coll Sci, Changsha 410128, Peoples R China.
通讯机构：
[Yuan Zhe-Ming] H;Hunan Agr Univ, Coll Biosafety Sci & Technol, Changsha 410128, Peoples R China.
关键词：
含氟化合物;支持向量回归;定量构效关系;K-最近邻;组合预测
摘要：
为深入认识含氟农药生物活性与其结构之间的关系，建立了理想的QSAR模型，从化合物油水分配系数等7个分子结构描述符出发，基于支持向量回归（SVR）和MSE最小原则，经自动寻找最优核函数和非线性筛选描述符，构建了多个K-最近邻（KNN）预测子模型．再经非线性筛选获得保留子模型，以保留子模型实施组合预测（Multi—KNN—SVR）．33种含氟化合物对5种不同病害生物活性的留一法组合预测结果表明，采用非线性筛选描述符和KNN子模型能有效地提高预测精度，基于多个KNN子模型的非线性组合能进一步提高预测性能．Multi—KNN—SVR组合预测在QSAR以及其它相关预测研究中具有广泛应用前景．
语种：
中文
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一类有界干扰的线性切换系统的可镇定性
作者：
张亚;王翀;刘双清;廖晓兰;马文月
期刊：
北京交通大学学报（自然科学版） ,2007年31(5):27-30 ISSN：1673-0291
通讯作者：
Liu, F.(fliu2@bjtu.edu.cn)
作者机构：
[张亚; 刘双清; 廖晓兰; 马文月] 湖南农业大学植物保护学院;[王翀] 湖南农业大学理学院
通讯机构：
School of Electronics and Information Engineering, Beijing Jiaotong University, China
关键词：
切换系统;一致能控性;紧集;可镇定性
摘要：
研究了带干扰的线性定常切换系统可镇定性问题.当切换模型集合是一致能控的紧集时,如果切换信号可以观测,且切换频率有界,则可构造状态反馈使得切换系统全局稳定.
语种：
中文
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十二烷基聚氧乙烯醚降解菌的分离、鉴定及降解特性
作者：
杨海君;杨成建;肖启明
期刊：
中国环境科学 ,2007年27(6):768-772 ISSN：1000-6923
通讯作者：
Yang, H.-J.
作者机构：
[杨海君; 肖启明] 湖南农业大学生物安全科技学院;[杨成建] 重庆文理学院化学与环境科学系
通讯机构：
College of Bio-safety Science and Technology, Hunan Agricultural University, China
关键词：
筛选;降解特性;十二烷基聚氧乙烯醚
摘要：
从工厂排污口废水中分离．纯化并筛选出一株降解十二烷基聚氧乙烯醚（Brij-30）的菌株，鉴定为伯克氏菌属（Pandoraca sp），命名为B30．当温度为30℃，pH5～8，底物浓度低于0．2g/L，且以蛋白胨做氮源时，菌株B30降解效果最好；Zn~(2＋)Ca~(2＋)、Al~(3＋)、Fe~(3＋)对菌株B30的生长及其降解性能具有较大的促进作用．在低浓度区（0．05-0．20g／L），菌株B30生长最快，降解活力性最强，12h内能将底物基本降解；在中等浓度区（0．40g，L左右），72h内能降解50％的底物；在高浓度区（0．80-1．50g/L），72h内底物的降解率在30％以下．
语种：
中文
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Microarray-based analysis of subnanogram quantities of microbial community DNAs by using whole-community genome amplification
作者：
Wu, Liyou;Liu, Xueduan;Schadt, Christopher W.;Zhou, Jizhong*
期刊：
Applied and Environmental Microbiology ,2006年72(7):4931-4941 ISSN：0099-2240
通讯作者：
Zhou, Jizhong
作者机构：
Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA.;Cent S Univ, Sch Minerals Proc & Bioengn, Changsha 410083, Peoples R China.;Hunan Agr Univ, Dept Plant Pathol, Changsha 410083, Peoples R China.;[Zhou, Jizhong] Univ Oklahoma, Inst Environm Genom, Stephenson Res & Technol Ctr, 101 David L Boren Blvd, Norman, OK 73019 USA.
通讯机构：
[Zhou, Jizhong] U;Univ Oklahoma, Inst Environm Genom, Stephenson Res & Technol Ctr, 101 David L Boren Blvd, Norman, OK 73019 USA.
关键词：
DNA, Bacterial;Ecosystem;Fresh Water;Genome, Bacterial;Nucleic Acid Amplification Techniques;Oligonucleotide Array Sequence Analysis;Water Pollution
摘要：
Microarray technology provides the opportunity to identify thousands of microbial genes or populations simultaneously, but low microbial biomass often prevents application of this technology to many natural microbial communities. We developed a whole-community genome amplification-assisted microarray detection approach based on multiple displacement amplification. The representativeness of amplification was evaluated using several types of microarrays and quantitative indexes. Representative detection of individual genes or genomes was obtained with 1 to 100 ng DNA from individual or mixed genomes, in equal or unequal abundance, and with 1 to 500 ng community DNAs from groundwater. Lower concentrations of DNA (as low as 10 fg) could be detected, but the lower template concentrations affected the representativeness of amplification. Robust quantitative detection was also observed by significant linear relationships between signal intensities and initial DNA concentrations ranging from (i) 0.04 to 125 ng (r2 = 0.65 to 0.99) for DNA from pure cultures as detected by whole-genome open reading frame arrays, (ii) 0.1 to 1,000 ng (r2 = 0.91) for genomic DNA using community genome arrays, and (iii) 0.01 to 250 ng (r2 = 0.96 to 0.98) for community DNAs from ethanol-amended groundwater using 50-mer functional gene arrays. This method allowed us to investigate the oligotrophic microbial communities in groundwater contaminated with uranium and other metals. The results indicated that microorganisms containing genes involved in contaminant degradation and immobilization are present in these communities, that their spatial distribution is heterogeneous, and that microbial diversity is greatly reduced in the highly contaminated environment. Copyright © 2006, American Society for Microbiology. All Rights Reserved.
语种：
英文
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18srDNA为内参照的Real-Time-PCR方法检测半夏病毒
作者：
何煜波;陈集双;陈海敏;冯俊丽;高必达
期刊：
湖南师范大学自然科学学报 ,2006年29(3):103-106 ISSN：2096-5281
通讯作者：
He, Y.-B.
作者机构：
[陈海敏; 冯俊丽; 何煜波; 陈集双] Insitute of Biotechnology, Zhejiang Institute of Science and Technology, Hangzhou 310018, China;[何煜波] College of Life Science, Dalian Nationalities University, Dalian 116600, China;[何煜波; 高必达] College of Bio-safety Science and Technology, Hunan Agricultural University, Changsha 410128, China
关键词：
实时荧光PCR;黄瓜花叶病毒;反转录-PCR;双夹心酶联免疫反应;半夏
摘要：
利用实时荧光PCR方法,以18srRNA为内参照,对半夏植株及相应组培苗携带的黄瓜花叶病毒(Cu-cumber Mosaic Virus,CMV)含量进行了相对定量检测.并以DAS-ELISA和RT-PCR方法检测结果相比较.结果表明,相比原始植株,组培苗的病毒含量大大降低.以带病毒半夏母株为外植体培养的组培苗,其病毒含量以叶片中的相对较高,在块茎和愈伤组织中病毒相对较低.而ELISA方法在检测病毒含量低的样品时有假阴性结果;RT-PCR方法灵敏度可靠但不适宜精确量化.
语种：
中文
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Culturable airborne fungi in outdoor environments in Beijing, China
作者：
Fang, ZG;Ouyang, ZY* ;Hu, LF;Wang, XK;Zheng, H;...
期刊：
Science of The Total Environment ,2005年350(1-3):47-58 ISSN：0048-9697
通讯作者：
Ouyang, ZY
作者机构：
Chinese Acad Sci, Key Lab Syst Ecol, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China.;Hunan Agr Univ, Coll Biosafety Sci & Technol, Changsha 410128, Peoples R China.;[Ouyang, ZY] Chinese Acad Sci, Key Lab Syst Ecol, Res Ctr Ecoenvironm Sci, POB 2871, Beijing 100085, Peoples R China.
通讯机构：
[Ouyang, ZY] C;Chinese Acad Sci, Key Lab Syst Ecol, Res Ctr Ecoenvironm Sci, POB 2871, Beijing 100085, Peoples R China.
关键词：
culturable airborne fungi;bioaerosol;aerobiology;size distribution pattern
摘要：
Airborne fungi are being proposed as a cause of adverse health effects. They may adversely affect human health through allergy, infection, and toxicity. Moreover, they have a great influence on urban air quality in Beijing. In this study, a systematical survey on the culturable airborne fungi was carried out for 1 year in Beijing urban area. Fungal samples were collected for 3 min, three times each day, and continued for three consecutive days of each month with FA-1 sampler from three sampling sites. Results showed that the culturable fungal concentrations ranged from 24 CFU (Colony forming units) /m<sup>3</sup> to 13960 CFU/m<sup>3</sup>, and the mean and median was 1165 CFU/m<sup>3</sup> and 710 CFU/m<sup>3</sup>, respectively. Fungal concentrations in the greener area around the Research Center for Eco-Environmental Sciences (RCEES) and Beijing Botanical Garden (BBG) were significantly higher than in the densely urban and highly trafficked area of Xizhimen (XZM) (***P<0. 001), but no significant difference was found between RCEES and BBG (P>0.05). The variation of fungal concentrations in different seasons was significant in RCEES and BBG, where the concentrations were higher in Summer and Autumn, and lower in Spring and Winter. However, there were no significant differences in fungal concentrations between the Spring and the Winter for three sampling sites (P>0.05). Fourteen genera, including 40 species of culturable fungi, were identified in this study. Penicillium, with the most abundant species, which comprised more than 50% of the total isolated fungal species. Cladosporium were the most dominant fungal group, and contributed to more than one third of the total fungal concentration, followed by non-sporing isolates, Alternaria, Pencillium and Asperigillus. The concentration percentage of Cladosporium was significantly higher in RCEES than in XZM (*P<0.05), and the concentration percentages of Penicillium (**P<0.01) and Aspergillus (*P<0.05) were higher in XZM than in RCEES and in BBG. For other groups' concentration percentages, no significant differences were observed among the sampling sites. The distribution pattern of airborne fungi presented log-normal distribution. The highest proportion of culturable fungi was detected in stage 4 (2.0-3.5 μm), and the lowest was in stage 6 (<1.0 μm). ©2005 Elsevier B.V. All rights reserved.
语种：
英文
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Point mutations in Arabidopsis Cullin1 reveal its essential role in jasmonate response
作者：
Ren, CM;Pan, JW;Peng, W;Genschik, P;Hobbie, L;...
期刊：
PLANT JOURNAL ,2005年42(4):514-524 ISSN：0960-7412
通讯作者：
Xie, DX
作者机构：
[Xie, DX] Inst Mol & Cell Biol, Singapore 138673, Singapore.;Hunan Agr Univ, Coll Biosafety Sci & Technol, Changsha 410128, Peoples R China.;Inst Biol Mol Plantes, F-67084 Strasbourg, France.;Adelphi Univ, Dept Biol, Garden City, NY 11530 USA.;Indiana Univ, Dept Biol, Bloomington, IN 47405 USA.
通讯机构：
[Xie, DX] I;Inst Mol & Cell Biol, Singapore 138673, Singapore.
关键词：
AtCullin1;SCF;COl1;jasmonate
摘要：
The SKP1-Cullin/Cdc53-F-box protein ubiquitin ligases (SCF) target many important regulatory proteins for degradation and play vital roles in diverse cellular processes. In Arabidopsis there are 11 Cullin members (AtCUL). AtCUL1 was demonstrated to assemble into SCF complexes containing COI1, an F-box protein required for response to jasmonates (JA) that regulate plant fertility and defense responses. It is not clear whether other Cullins also associate with COI1 to form SCF complexes, thus, it is unknown whether AtCUL1, or another Cullin that assembles into SCFCOI1 (even perhaps two or more functionally redundant Cullins), plays a major role in JA signaling. We present genetic and physiological data to directly demonstrate that AtCUL1 is necessary for normal JA responses. The homozygous AtCUL1 mutants axr6-1 and axr6-2, the heterozygous mutants axr6/AXR6, and transgenic plants expressing mutant AtCUL1 proteins containing a single amino acid substitution from phenylalanine-111 to valine, all exhibit reduced responses to JA. We also demonstrate that ax6 enhances the effect of coi1 on JA responses, implying a genetic interaction between COI1 and AtCUL1 in JA signaling. Furthermore, we show that the point mutations in AtCUL1 affect the assembly of COI1 into SCF, thus attenuating SCFCOI1 formation.
语种：
英文
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北京市室外空气真菌分布特征
作者：
胡利锋;方治国;欧阳志云;廖晓兰;林学强;...
期刊：
环境科学 ,2005年26(5):22-27 ISSN：0250-3301
作者机构：
[胡利锋; 廖晓兰] 湖南农业大学生物安全与科技学院;中国科学院生态环境研究中心系统生态重点实验室;[方治国; 欧阳志云; 林学强; 王效科] 中国科学院生态环境研究中心
关键词：
空气真菌;粒径分布;优势菌属;枝孢属
摘要：
通过定点取样研究北京市空气真菌的种类组成,浓度特征及其动态变化规律.监测结果表明,北京市空气真菌平均浓度为(1164.8±73.2)CFU·m-3,浓度变异很大,变化范围为23.6～13959.5CFU·m-3.空气中优势真菌为枝孢属(Cladosporium)、青霉属(Penicillium)、链格孢属(Alternaria)、曲霉属(Aspergillus)和无孢菌(non-sporing),其中枝孢属是绝对优势真菌,浓度约占真菌总浓度的1/3以上.文教区和公园绿地空气真菌浓度夏季和秋季较高,春季和秋季较低,而交通干线空气真菌浓度4季变化趋势不明显.文教区和公园绿地空气真菌浓度明显高于交通干线(p＜0.05),文教区和公园绿地之间则没有显著差异.
语种：
中文
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