Multifractal detrended fluctuation analysis for clustering structures of electricity price periods
作者：
Wang, Fang* ;Liao, Gui-ping;Li, Jian-hui;Li, Xiao-chun;Zhou, Tie-jun
期刊：
Physica A: Statistical Mechanics and its Applications ,2013年392(22):5723-5734 ISSN：0378-4371
通讯作者：
Wang, Fang
作者机构：
[Zhou, Tie-jun; Wang, Fang] Hunan Agr Univ, Coll Sci, Changsha 410128, Hunan, Peoples R China.;[Liao, Gui-ping; Wang, Fang; Li, Jian-hui] Hunan Agr Univ, Agr Informat Inst, Changsha 410128, Hunan, Peoples R China.;[Li, Xiao-chun] Hunan Agr Univ, Orient Sci & Technol Coll, Changsha 410128, Hunan, Peoples R China.
通讯机构：
[Wang, Fang] Hunan Agr Univ, Coll Sci, Changsha 410128, Hunan, Peoples R China.
关键词：
Sub-periods electricity price;Clustering;Multifractal detrended fluctuation analysis;Fisher’s linear discriminant algorithm
摘要：
A new model is proposed to investigate the structure of electricity price in different time periods. A popular method - the multifractal detrended fluctuation analysis (MF-DFA) method is employed to analyze the features achieved from three types of electricity price data after filtering some trends by Fourier detrended fluctuation function. Twelve multifractal parameters are calculated and selected as the characteristic indicators for comparison. Moreover, the minimum number of indicators is determined so that the discriminant accuracy reaches maximum based on Fisher's linear discriminant algorithm (Fisher's LDA) for each time period. These indicators form a multi-dimensional space, in which each point represents a price time series. This allows us to cluster the three price time periods, namely, the low price time periods, the average price time periods and the peak price time periods. Fisher's LDA is employed to evaluate the discriminant accuracy on these three kinds of time periods. Our analysis is then applied to the data in California1999-2000 and PJM2001-2002 electricity markets to demonstrate the applicability of our methods. ©2013 Elsevier B.V. All rights reserved.
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英文
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Conversion of sewage sludge into high-performance bifunctional electrode materials for microbial energy harvesting
作者：
Yuan, Yong;Liu, Ting;Fu, Peng;Tang, Jiahuan;Zhou, Shungui*
期刊：
Journal of Materials Chemistry A ,2015年3(16):8475-8482 ISSN：2050-7488
通讯作者：
Zhou, Shungui
作者机构：
[Fu, Peng; Zhou, Shungui; Tang, Jiahuan; Yuan, Yong; Liu, Ting] Guangdong Inst Ecoenvironm & Soil Sci, Guangdong Key Lab Agr Environm Pollut Integrated, Guangzhou 510650, Guangdong, Peoples R China.;[Liu, Ting] Hunan Agr Univ, Orient Sci & Technol Coll, Changsha 410128, Hunan, Peoples R China.;[Fu, Peng] Guangdong Univ Technol, Sch Chem Engn & Light Ind, Guangzhou 510006, Guangdong, Peoples R China.
通讯机构：
[Zhou, Shungui] Guangdong Inst Ecoenvironm & Soil Sci, Guangdong Key Lab Agr Environm Pollut Integrated, Guangzhou 510650, Guangdong, Peoples R China.
摘要：
Conversion of sewage sludge (SS) into value-added biochar has garnered increasing attention due to its potential applications as a soil amendment and pollutant adsorbent. In this study, we propose a new application of the SS-derived biochar as an advanced bifunctional electrode material (anode and cathode) in microbial fuel cells (MFCs). To function as an anode, the SS amended with various amounts of coconut shell was pressed into a mold and then converted into SS-derived carbon monoliths (SMs) by heat treatment. Meanwhile, powdered SMs (PSMs) were used as the catalysts for oxygen reduction in the cathodes of the MFCs. The maximum power density of 969 ±28 mW m<sup>-2</sup>was achieved from the MFC with a SM anode and a PSM cathode, which was ca. 2.4 times that of the MFC with a graphite anode and a Pt cathode. The enhanced electrical conductivity of the SMs caused by amending the coconut shell resulted in the enrichment of exoelectrogens and the decrease in electron transfer resistance, which were responsible for the excellent performances of the as-prepared electrodes. This study suggests a promising method to convert SS into bifunctional electrode materials, offering a new opportunity for value-added applications of SS-derived biochar. ©The Royal Society of Chemistry 2015.
语种：
英文
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A Comparison of Growth and Development of Three Major Agricultural Insect Pests Infected with Heliothis virescens ascovirus 3h (HvAV-3h)
作者：
Li, Shun-Ji;Wang, Xing;Zhou, Zhong-Shi;Zhu, Jie;Hu, Jue;Zhao, Yi-Pei;Zhou, Gui-Wei;Huang, Guo-Hua*
期刊：
PLoS ONE ,2013年8(12):e85704-null ISSN：1932-6203
通讯作者：
Huang, Guo-Hua
作者机构：
[Li, Shun-Ji; Huang, Guo-Hua; Hu, Jue; Zhou, Gui-Wei; Zhu, Jie] Hunan Agr Univ, Inst Virol, Changsha, Hunan, Peoples R China.;[Zhao, Yi-Pei; Wang, Xing] Hunan Agr Univ, Oriental Sci & Technol Coll, Dept Plant Protect, Changsha, Hunan, Peoples R China.;[Zhou, Zhong-Shi] Chinese Acad Agr Sci, Inst Plant Protect, Beijing 100193, Peoples R China.
通讯机构：
[Huang, Guo-Hua] Hunan Agr Univ, Inst Virol, Changsha, Hunan, Peoples R China.
摘要：
Ascoviruses are double-stranded DNA viruses that are pathogenic to lepidopteran hosts, particularly noctuid larvae. Infection of a larva is characterized by retarded growth, reduced feeding and yellowish body color. In this paper, we reported the growth and development of three major agricultural noctuid insect pests, Helicoverpa armigera (Hübner), Spodoptera exigua (Hübner) and Spodoptera litura (Fabricius), infected with Heliothis virescens ascovirus 3h (HvAV-3h). Using 10-fold serial dilutions (0 to 7) of HvAV-3h-containing hemolymph to infect S. litura larvae, we found no significant difference in larval mortalities from 0 to 103-fold dilutions; however, significant differences were observed at 104-fold dilution and above. Using a 10-fold dilution of HvAV-3h-containing hemolymph to infect H. armigera, S. exigua and S. litura larvae, we found that the growth and development were significantly affected. All infected larvae could not pupate; the survival times of treated H. armigera, S. litura and S. exigua larvae were significantly longer than untreated control larvae. Body weight showed significant difference between treated and untreated control group from day 1 after inoculation in H. armigera and S. exigua, but day 2 in S. litura. Additionally, food intake also showed significant difference between treated and untreated control group from day 2 after inoculation in H. armigera and S. litura, but day 3 in S. exigua. © 2013 Li et al.
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英文
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Heat stress-induced BBX18 negatively regulates the thermotolerance in Arabidopsis
作者：
Wang, Qiming;Tu, Xiaoju;Zhang, Jihong;Chen, Xinbo;Rao, Liqun*
期刊：
Molecular Biology Reports ,2013年40(3):2679-2688 ISSN：0301-4851
通讯作者：
Rao, Liqun
作者机构：
[Chen, Xinbo; Wang, Qiming; Rao, Liqun] Hunan Agr Univ, Coll Biosci & Biotechnol, State Key Lab Breeding Base Crop Germplasm Innova, Changsha 410128, Hunan, Peoples R China.;[Tu, Xiaoju] Hunan Agr Univ, Coll Orient Sci & Technol, Changsha 410128, Hunan, Peoples R China.;[Zhang, Jihong] Xiangtan Univ, Dept Biol Engn, Xiangtan 411105, Peoples R China.
通讯机构：
[Rao, Liqun] Hunan Agr Univ, Coll Biosci & Biotechnol, State Key Lab Breeding Base Crop Germplasm Innova, Changsha 410128, Hunan, Peoples R China.
关键词：
B-box zinc finger;Digalactosyldiacylglycerol synthase;Heat shock factor;Thermotolerance;Arabidopsis
摘要：
There is increasing evidence for considerable interlinking between the responses to heat stress (HS) and light signaling. In the present work, we provide molecular evidence that BBX18, a negative regulator in photomorphogenesis belonging to the B-box zinc finger protein family in Arabidopsis thaliana, is involved in the regulation of thermotolerance. Using quantitative RT-PCR, GUS staining and immunoblot analysis, our results indicate that the expression of BBX18 was induced by HS. BBX18-RNAi and 35S::BBX18 transgenic Arabidopsis plants were obtained for functional analysis of BBX18. Under-expression of BBX18 displayed increased both basal and acquired thermotolerance in the transgenic plants, while over-expression of BBX18 reduced tolerance to HS in transgenic lines. Moreover, when wild-type, BBX18-RNAi and 35S::BBX18 transgenic plants were treated with HS, HR-related digalactosyldiacylglycerol synthase 1 (DGD1) was down-regulated by BBX18 in both normal and heat shock conditions. Besides, the expression levels of Hsp70, Hsp101 and APX2 were increased in BBX18-RNAi transgenic plants, but lower in 35S::BBX18 transgenic plants. However, the expression of HsfA2 was lower in BBX18-RNAi transgenic plants and higher in the 35S::BBX18 after high-temperature treatment. These results suggesting that, by modulated expression of a set of HS-responsive genes, BBX18 weakened tolerance to HS in Arabidopsis. So our data indicate that BBX18 plays a negative role in thermotolerance.
语种：
英文
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THE MEASUREMENT STRUCTURE OF DISPOSITIONAL HOPE: HIERARCHICAL AND BIFACTOR MODELS
作者：
Li, Zhihua;Yin, Xiayun;Yang, Huilin;Tian, Jianxiang*
期刊：
SOCIAL BEHAVIOR AND PERSONALITY ,2018年46(4):597-606 ISSN：0301-2212
通讯作者：
Tian, Jianxiang
作者机构：
[Li, Zhihua] Hunan Agr Univ, Dept Appl Psychol, Changsha, Hunan, Peoples R China.;[Yin, Xiayun] Hunan Univ Sci & Technol, Inst Educ, Xiangtan, Peoples R China.;[Yang, Huilin] Hunan Agr Univ, Oriental Sci & Technol Coll, Changsha, Hunan, Peoples R China.;[Tian, Jianxiang] Hunan Agr Univ, Further Educ Coll, NongDa Rd 1, Changsha 410128, Hunan, Peoples R China.
通讯机构：
[Tian, Jianxiang] Hunan Agr Univ, Further Educ Coll, NongDa Rd 1, Changsha 410128, Hunan, Peoples R China.
关键词：
Bifactor model;Dispositional hope;Goal achievement;Hierarchical model;Hope;Measurement structure
摘要：
Hope is a higher-order cognitive construct relating to expectations of or beliefs in wish fulfillment, which has been conceptualized as consisting of 2 components: pathways thinking (the perceived means available to individuals that allow them to achieve their goals) and agency thinking (belief in one’s ability to succeed in using the identified pathways). We aimed to clarify the measurement structure of the Chinese version of the Adult Dispositional Hope Scale, using a sample of 751 university student participants. We employed confirmatory factor analysis to compare 1-factor, 2-factor, second-order, and bifactor models. The results showed that all models fit the measured data well. However, the bifactor model had the best fit indices, whereas the second-order model was the most consistent with the theoretical measurement model. To verify that hope theory and the corresponding instruments can be confidently applied to cross-cultural samples, it is necessary to further assess their reliability and validity in a Chinese cultural context through a measurement structure analysis. © 2018 Scientific Journal Publishers Limited. All Rights Reserved.
语种：
英文
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Periodic and subharmonic solutions for a 2nth-order difference equation involving p-Laplacian
作者：
Deng, Xiaoqing;Liu, Xia;Zhang, Yuanbiao;Shi, Haiping*
期刊：
Indagationes Mathematicae ,2013年24(3):613-625 ISSN：0019-3577
通讯作者：
Shi, Haiping
作者机构：
[Deng, Xiaoqing] Hunan Univ Commerce, Sch Math & Stat, Changsha 410205, Hunan, Peoples R China.;[Liu, Xia] Hunan Agr Univ, Oriental Sci & Technol Coll, Changsha 410128, Hunan, Peoples R China.;[Zhang, Yuanbiao] Jinan Univ, Packaging Engn Inst, Zhuhai 519070, Peoples R China.;[Shi, Haiping] Guangdong Construct Vocat Technol Inst, Basic Courses Dept, Guangzhou 510450, Guangdong, Peoples R China.
通讯机构：
[Shi, Haiping] Guangdong Construct Vocat Technol Inst, Basic Courses Dept, Guangzhou 510450, Guangdong, Peoples R China.
关键词：
Periodic and subharmonic solutions;2 nth-order;Functional difference equations;Discrete variational theory;p-Laplacian
摘要：
By using the critical point theory, some new criteria are obtained for the existence and multiplicity of periodic and subharmonic solutions to a 2nth-order nonlinear difference equation containing both advance and retardation involving p-Laplacian. The proof is based on the Linking Theorem in combination with variational technique. Our results generalize and improve the results in the literature. (C) 2013 Royal Dutch Mathematical Society (KWG). Published by Elsevier B.V. All rights reserved.
语种：
英文
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Existence and Exponential Stability of Multiple Periodic Solutions for a Multidirectional Associative Memory Neural Network
作者：
Zhou, Tiejun* ;Wang, Min;Long, Min
期刊：
Neural Processing Letters ,2012年35(2):187-202 ISSN：1370-4621
通讯作者：
Zhou, Tiejun
作者机构：
[Long, Min; Zhou, Tiejun] Hunan Agr Univ, Coll Sci, Changsha 410128, Hunan, Peoples R China.;[Wang, Min; Zhou, Tiejun] Hunan Agr Univ, Coll Orient Sci & Technol, Changsha 410128, Hunan, Peoples R China.
通讯机构：
[Zhou, Tiejun] Hunan Agr Univ, Coll Sci, Changsha 410128, Hunan, Peoples R China.
关键词：
Multidirectional associative memory neural network;Periodic solution;Exponential stability;Invariant set;Poincaré mapping
摘要：
The paper proposes several mathematical models of the multidirectional associative memory (MAM) neural network by analyzing its structure. A model of MAM with distributed delays is studied. Under some new assumptions on activation functions, 2<sup>n0[m/2]</sup> invariant subsets of MAM are constructed. Then the existence and the exponential stability of 2<sup>n0[m/2]</sup> periodic solutions located on invariant subsets are obtained by constructing a suitable Liapunov function and a Poincare´mapping. An estimating method of the exponential convergence rate is given. The obtained results are new to MAM neural networks. An example is given to illustrate the effectiveness of the results. ©Springer Science+Business Media, LLC. 2011.
语种：
英文
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Periodic and subharmonic solutions for fourth-order nonlinear difference equations
作者：
Liu, Xia;Zhang, Yuanbiao;Shi, Haiping* ;Deng, Xiaoqing
期刊：
Applied Mathematics and Computation ,2014年236:613-620 ISSN：0096-3003
通讯作者：
Shi, Haiping
作者机构：
[Liu, Xia] Hunan Agr Univ, Oriental Sci & Technol Coll, Changsha 410128, Hunan, Peoples R China.;[Liu, Xia] Hunan Agr Univ, Coll Sci, Changsha 410128, Hunan, Peoples R China.;[Zhang, Yuanbiao] Jinan Univ, Packaging Engn Inst, Zhuhai 519070, Peoples R China.;[Shi, Haiping] Guangdong Construct Vocat Technol Inst, Modern Business & Management Dept, Guangzhou 510450, Guangdong, Peoples R China.;[Deng, Xiaoqing] Hunan Univ Commerce, Sch Math & Stat, Changsha 410205, Hunan, Peoples R China.
通讯机构：
[Shi, Haiping] Guangdong Construct Vocat Technol Inst, Modern Business & Management Dept, Guangzhou 510450, Guangdong, Peoples R China.
关键词：
Periodic and subharmonic solutions;Fourth-order;Nonlinear difference equations;Discrete variational theory
摘要：
By using the critical point theory, some new criteria are obtained for the existence and multiplicity of periodic and subharmonic solutions to fourth-order nonlinear difference equations. The main approach used in our paper is a variational technique and the Linking Theorem. Our results generalize and improve the existing ones. ©2014 Elsevier B.V. All rights reserved.
语种：
英文
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Paenibacillus guangzhouensis sp. nov., an Fe(III)- and humus-reducing bacterium from a forest soil.
作者：
Li, Jibing;Lu, Qin;Liu, Ting;Zhou, Shungui;Yang, Guiqin* ;Zhao, Yong
期刊：
International Journal of Systematic and Evolutionary Microbiology ,2014年64(Pt 11):3891-3896 ISSN：1466-5026
通讯作者：
Yang, Guiqin
作者机构：
[Li, Jibing; Yang, Guiqin; Zhao, Yong] Shanghai Ocean Univ, Coll Food Sci & Technol, Shanghai 201306, Peoples R China.;[Lu, Qin; Li, Jibing; Yang, Guiqin; Zhou, Shungui] Guangdong Inst Ecoenvironm & Soil Sci, Guangzhou 510650, Guangdong, Peoples R China.;[Liu, Ting] Hunan Agr Univ, Coll Orient Sci & Technol, Changsha 410128, Hunan, Peoples R China.
通讯机构：
[Yang, Guiqin] Shanghai Ocean Univ, Coll Food Sci & Technol, Shanghai 201306, Peoples R China.
摘要：
A Gram-reaction-variable, rod-shaped, motile, facultatively aerobic and endospore-forming bacterium, designated strain GSS02(T), was isolated from a forest soil. Strain GSS02(T) was capable of reducing humic substances and Fe(III) oxides. Strain GSS02(T) grew optimally at 35 degrees C, at pH 78 and in the presence of 1% NaCl. The predominant menaquinone was MK-7. The major cellular fatty acids were anteiso-C(15:0) and iso-C(16:0) and the polar lipid profile contained mainly phosphatidylethanolamine, diphosphatidylglycerol and phosphatidylglycerol, with moderate amounts of two unknown aminophospholipids and a minor amount of one unknown lipid. The DNA G+C content was 53.4 mol%. Comparative 16S rRNA gene sequence analysis showed that strain GSS02(T) was related most closely to Paenibacillus terrigena JCM 21741(T) (98.1% similarity). Mean DNA-DNA relatedness between strain GSS02(T) and P. terrigena JCM 21741(T) was 58.8 +/- 0.5%. The phylogenetic, chemotaxonomic and phenotypic results clearly demonstrated that strain GSS02(T) belongs to the genus Paenibacillus and represents a novel species, for which the name Paenibacillus guangzhouensis sp. nov. is proposed. The type strain is GSS02(T) ( =KCTC 33171(T) =CCTCC AB 2013236(T)).
语种：
英文
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Buckling Analysis of Axially Functionally Graded and Non-Uniform Beams Based on Timoshenko Theory
作者：
Huang, Yong;Zhang, Meng* ;Rong, Haiwu
期刊：
Acta Mechanica Solida Sinica ,2016年29(2):200-207 ISSN：0894-9166
通讯作者：
Zhang, Meng
作者机构：
[Huang, Yong; Rong, Haiwu] Foshan Univ, Dept Math, Foshan 528000, Peoples R China.;[Zhang, Meng] Hunan Agr Univ, Oriental Sci & Technol Coll, Changsha 410128, Hunan, Peoples R China.
通讯机构：
[Zhang, Meng] Hunan Agr Univ, Oriental Sci & Technol Coll, Changsha 410128, Hunan, Peoples R China.
关键词：
buckling;axially functionally graded tapered beams;Timoshenko beam theory;coupled governing equations
摘要：
In this paper, the buckling behaviors of axially functionally graded and non-uniform Timoshenko beams were investigated. Based on the auxiliary function and power series, the coupled governing equations were converted into a system of linear algebraic equations. With various end conditions, the characteristic polynomial equations in the buckling loads were obtained for axially inhomogeneous beams. The lower and higher-order eigenvalues were calculated simultaneously from the multi-roots due to the fact that the derived characteristic equation was a polynomial one. The computed results were in good agreement with those analytical and numerical ones in literature.
语种：
英文
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Spiders as excellent experimental models for investigation of heavy metal impacts on the environment: a review
作者：
Yang, Huilin;Peng, Yuande;Tian, Jianxiang;Wang, Juan;Hu, Jilin;Wang, Zhi*
期刊：
Environmental Earth Sciences ,2016年75(13):1-6 ISSN：1866-6280
通讯作者：
Wang, Zhi
作者机构：
[Yang, Huilin] Hunan Agr Univ, Coll Orient Sci & Technol, 1 Nongda Rd, Changsha 410128, Hunan, Peoples R China.;[Peng, Yuande] Chinese Acad Agr Sci, Inst Bast Fiber Crops, Changsha 410205, Hunan, Peoples R China.;[Tian, Jianxiang] Hunan Agr Univ, Coll Continuing Educ, 1 Nongda Rd, Changsha 410128, Hunan, Peoples R China.;[Yang, Huilin; Wang, Zhi; Hu, Jilin; Wang, Juan] Hunan Agr Univ, Coll Biosci & Biotechnol, 1 Nongda Rd, Changsha 410128, Hunan, Peoples R China.
通讯机构：
[Wang, Zhi] Hunan Agr Univ, Coll Biosci & Biotechnol, 1 Nongda Rd, Changsha 410128, Hunan, Peoples R China.
关键词：
Bioaccumulation;Metal pollution;Spiders
摘要：
Heavy metals can accumulate in the bodies of spiders and affect their physiological and ecological traits and/or show toxicological effects. Spiders are thus considered to be potential bioindicators of heavy metal pollution for ecosystem monitoring, due to their superior resistance to and regulation of heavy metals. The metal loads in spider bodies show considerable variation within and among species, metal types, geochemical sites, exposure pathways, spider physiological traits, and other factors. Moreover, the mechanism of physiological regulation and tolerance in spiders to different kinds of heavy metals also varies significantly;it has been shown that those two differences are synergistic effects. Since the ecotoxicology and differences in physiological mechanisms remain unclear, questions and recommendations for possible further research are suggested. ©2016, Springer-Verlag Berlin Heidelberg.
语种：
英文
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Budget-constraint stochastic task scheduling on heterogeneous cloud systems
作者：
Tang, Xiaoyong;Li, Xiaochun* ;Fu, Zhuojun
期刊：
Concurrency Computation ,2017年29(19):- ISSN：1532-0626
通讯作者：
Li, Xiaochun
作者机构：
[Fu, Zhuojun; Tang, Xiaoyong] Hunan Agr Univ, Informat Sci & Technol College, Southern Reg Collaborat Innovat Ctr Grain & Oil C, Changsha 410128, Hunan, Peoples R China.;[Li, Xiaochun] Hunan Agr Univ, Orient Sci & Technol Coll, Changsha 410128, Hunan, Peoples R China.;[Tang, Xiaoyong] Nanjing Univ, State Key Lab Novel Software Technol, Nanjing 210046, Jiangsu, Peoples R China.
通讯机构：
[Li, Xiaochun] Hunan Agr Univ, Orient Sci & Technol Coll, Changsha 410128, Hunan, Peoples R China.
关键词：
cost;genetic algorithm;heterogeneous clouds;makespan;stochastic task
摘要：
In the past few years, more and more business-to-consumer and enterprise applications run in the heterogeneous clouds. Such cloud bag-of-tasks applications are usually budget constrained, and their scheduling is an essential problem for cloud provider. The problem is even more complex and challenging when the accurate knowledge about task execution time is unknown in advance. Focusing on these challenges, we first build a cloud resource management architecture and stochastic task model, which divides cloud task into two execution parts. Then, we deduce bag-of-tasks applications' schedule length (Makespan) and total cost according to heterogeneous clouds' online feedback information of task first part execution. Thirdly, we formulate this stochastic scheduling problem as a linear programming problem. Lastly, we propose a time and cost multiobjective stochastic task scheduling genetic algorithm, in which can find Pareto optimal schedules for stochastic cloud task that meet its budget constraint. The extensive simulation experiments were carried out on a heterogeneous cloud platform with 400 virtual machines, and tasks were derived from Parallel Workloads Archive and the analysis data of real-world cloud systems. The experimental results show that our proposed stochastic task scheduling genetic algorithm can get shorter schedule length and lower cost with task budget constraints. Copyright ©2017 John Wiley & Sons, Ltd.
语种：
英文
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Antiviral activity of phage display selected peptides against Porcine reproductive and respiratory syndrome virus in vitro
作者：
Liu, Ke;Feng, Xiuli;Ma, Zhiyong;Luo, Chao;Zhou, Bin;Cao, Ruibing;Huang, Li;Miao, Denian;Pang, Ran;He, Danni;Lian, Xue;Chen, Puyan*
期刊：
Virology ,2012年432(1):73-80 ISSN：0042-6822
通讯作者：
Chen, Puyan
作者机构：
[Zhou, Bin; Pang, Ran; Chen, Puyan; Cao, Ruibing; Lian, Xue; Huang, Li; He, Danni; Liu, Ke; Feng, Xiuli] Nanjing Agr Univ, Dept Vet Med Coll, Key Lab Anim Dis Diagnost & Immunol, Nanjing 210095, Jiangsu, Peoples R China.;[Ma, Zhiyong] Chinese Acad Agr Sci, Shanghai Vet Res Inst, Shanghai 200241, Peoples R China.;[Luo, Chao] Hunan Agr Univ, Dept Orient Sci & Technol Coll, Changsha, Hunan, Peoples R China.;[Miao, Denian] Shanghai Acad Agr Sci, Shanghai, Peoples R China.;[Chen, Puyan] Nanjing Agr Univ, Dept Vet Med Coll, Key Lab Anim Dis Diagnost & Immunol, YiFu 4037, Nanjing 210095, Jiangsu, Peoples R China.
通讯机构：
[Chen, Puyan] Nanjing Agr Univ, Dept Vet Med Coll, Key Lab Anim Dis Diagnost & Immunol, YiFu 4037, Nanjing 210095, Jiangsu, Peoples R China.
关键词：
Porcine reproductive and respiratory syndrome virus;Phage display;Antiviral peptide
摘要：
Porcine reproductive and respiratory syndrome is an important infectious disease of pigs and has a significant harmful effect on the livestock industry, especially in China. PRRSV ORF1b gene encodes primary proteins which play a vital role during PRRSV replication. In this paper, various 12-amino-acid peptides were displayed. These peptides could bind to the polymerase and helicase of PRRSV ORF1b protein, respectively, in which p9 exerted the highest antiviral activity with an IC50 of 56 mu M, and the minimum toxicity to cells. It was proved that p9 inhibited PRRSV replication in infected MARC-145 cells in a dose-dependent manner, and the amino acid sequence of HRILMRIR was important for antiviral activity of p9. Also, p9 could bind to the cell membrane and penetrated into cells. These result suggested that p9 might be a potential therapeutic drug for PRRSV infection. Crown Copyright (C) 2012 Published by Elsevier Inc. All rights reserved.
语种：
英文
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A New Algorithm to Optimize Maximal Information Coefficient
作者：
Chen, Yuan;Zeng, Ying;Luo, Feng* ;Yuan, Zheming*
期刊：
PLOS ONE ,2016年11(6):e0157567-null ISSN：1932-6203
通讯作者：
Luo, Feng;Yuan, Zheming
作者机构：
[Luo, Feng; Chen, Yuan; Yuan, Zheming; Luo, F; Yuan, ZM] Hunan Agr Univ, Hunan Prov Key Lab Biol & Control Plant Dis & Ins, Changsha, Hunan, Peoples R China.;[Zeng, Ying] Hunan Agr Univ, Orient Sci & Technol Coll, Changsha, Hunan, Peoples R China.;[Luo, Feng] Hunan Agr Univ, Coll Plant Protect, Changsha, Hunan, Peoples R China.;[Luo, Feng] Clemson Univ, Sch Comp, Clemson, SC 29634 USA.;[Yuan, Zheming] Hunan Agr Univ, Hunan Prov Key Lab Germplasm Innovat & Utilizat C, Changsha, Hunan, Peoples R China.
通讯机构：
[Luo, F; Yuan, ZM] Hunan Agr Univ, Hunan Prov Key Lab Biol & Control Plant Dis & Ins, Changsha, Hunan, Peoples R China.;[Luo, Feng] Hunan Agr Univ, Coll Plant Protect, Changsha, Hunan, Peoples R China.;[Luo, Feng] Clemson Univ, Sch Comp, Clemson, SC 29634 USA.;[Yuan, Zheming] Hunan Agr Univ, Hunan Prov Key Lab Germplasm Innovat & Utilizat C, Changsha, Hunan, Peoples R China.
摘要：
The maximal information coefficient (MIC) captures dependences between paired variables, including both functional and non-functional relationships. In this paper, we develop a new method, ChiMIC, to calculate the MIC values. The ChiMIC algorithm uses the chi-square test to terminate grid optimization and then removes the restriction of maximal grid size limitation of original ApproxMaxMI algorithm. Computational experiments show that ChiMIC algorithm can maintain same MIC values for noiseless functional relationships, but gives much smaller MIC values for independent variables. For noise functional relationship, the ChiMIC algorithm can reach the optimal partition much faster. Furthermore, the MCN values based on MIC calculated by ChiMIC can capture the complexity of functional relationships in a better way, and the statistical powers of MIC calculated by ChiMIC are higher than those calculated by ApproxMaxMI. Moreover, the computational costs of ChiMIC are much less than those of ApproxMaxMI. We apply the MIC values tofeature selection and obtain better classification accuracy using features selected by the MIC values from ChiMIC.
语种：
英文
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Almost periodic solution for multidirectional associative memory neural network with distributed delays
作者：
Zhou, Tiejun* ;Wang, Min;Li, Chen
期刊：
Mathematics and Computers in Simulation ,2014年107:52-60 ISSN：0378-4754
通讯作者：
Zhou, Tiejun
作者机构：
[Zhou, Tiejun] Hunan Agr Univ, Coll Sci, Changsha 410128, Hunan, Peoples R China.;[Li, Chen; Wang, Min] Hunan Agr Univ, Coll Orient Sci & Technol, Changsha 410128, Hunan, Peoples R China.
通讯机构：
[Zhou, Tiejun] Hunan Agr Univ, Coll Sci, Changsha 410128, Hunan, Peoples R China.
关键词：
Multidirectional associative memory neural networks;Almost periodic solution;Global exponential stability;Exponential dichotomy;Spectral radius
摘要：
This paper proposes a mathematical model of multidirectional associative memory (MAM) neural network with almost periodic coefficients and continuously distributed delays. By using exponential dichotomy and spectral radius, a sufficient condition for the existence and the global exponential stability of an almost periodic solution is obtained. Two examples are given to illustrate the effectiveness of our results. © 2014 International Association for Mathematics and Computers in Simulation (IMACS). Published by Elsevier B.V. All rights reserved.
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Metatranscriptome analysis of the intestinal microorganisms in Pardosa pseudoannulata in response to cadmium stress
作者：
Yang, Huilin;Wang, Juan;Lv, Zhiyue;Tian, Jianxiang;Peng, Yuande;Peng, Xianjin;Xu, Xiang;Song, Qisheng;Lv, Bo;Chen, Zhaoyang;Sun, Zhiying;Wang, Zhi
期刊：
Ecotoxicology and Environmental Safety ,2018年159:1-9 ISSN：0147-6513
通讯作者：
Wang, Z
作者机构：
[Yang, Huilin] Hunan Agr Univ, Coll Orient Sci & Technol, 1 Nongda Rd, Changsha 410128, Hunan, Peoples R China.;[Yang, Huilin; Wang, Juan; Lv, Bo; Chen, Zhaoyang; Sun, Zhiying; Wang, Zhi] Hunan Agr Univ, Coll Biosci & Biotechnol, 1 Nongda Rd, Changsha 410128, Hunan, Peoples R China.;[Lv, Zhiyue] Sun Yat Sen Univ, Zhongshan Sch Med, Dept Parasitol, Guangzhou 510080, Guangdong, Peoples R China.;[Tian, Jianxiang] Hunan Agr Univ, Coll Continuing Educ, 1 Nongda Rd, Changsha 410128, Hunan, Peoples R China.;[Peng, Yuande] Chinese Acad Agr Sci, Inst Bast Fiber Crops, Changsha 410205, Hunan, Peoples R China.
通讯机构：
[Wang, Z ] Hunan Agr Univ, Coll Biosci & Biotechnol, 1 Nongda Rd, Changsha 410128, Hunan, Peoples R China.;Hunan Agr Univ, Coll Biosci & Biotechnol, 1 Nongda Rd, Changsha 410128, Hunan, Peoples R China.
关键词：
Metatranscriptome;Cadmium;Intestinal microorganisms;P. pseudoannulata
摘要：
Cadmium (Cd) generates a variety of physiological and ecological toxicity to spiders. However, little is known about the effects of Cd on symbiotic bacteria of spiders. Metatranscriptomics is increasing our knowledge of microorganisms in environment. To better understand the impact of Cd on the symbiotic bacteria of spiders, we generated and compared the metatranscriptomes of the intestinal microorganisms of Pardosa pseudoannulata with and without Cd stress. The community structure of intestinal microorganisms in P. pseudoannulata was composed of 4 kingdoms, namely bacteria, viruses, eukaryotes and archaea, including 46 phyla, 97 classes, 184 orders, 339 families, 470 genera, and 598 species. The abundance of eukaryotes, bacteria and viruses was decreased by 0.14%, 1.22% and 2.52% respectively while the archaea was increased by 99.16% when under Cd stress. We identified 1519 differentially expressed genes (DEGs), including 770 up-regulated and 749 down-regulated genes. The results of KEGG annotation revealed that the expression of genes that are involved in the carbon metabolism, protein and amino acid metabolism and synthesis, glucose metabolism, oxidative phosphorylation, and glutathione metabolism were influenced by Cd. Collectively, these findings showed that Cd significantly impacted the community structure and expression of related functional genes of intestinal microorganisms in P. pseudoannulata. © 2018 Elsevier Inc.
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英文
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Gravitational lensing effects of a Reissner–Nordstrom–de Sitter black hole
作者：
Zhao, Fan* ;Tang, Jianfeng;He, Feng
期刊：
Physical Review D ,2016年93(12):123017 ISSN：2470-0010
通讯作者：
Zhao, Fan
作者机构：
[Zhao, Fan] Hunan Agr Univ, Orient Sci & Technol Coll, Changsha 410128, Hunan, Peoples R China.;[Tang, Jianfeng; Zhao, Fan] Hunan Agr Univ, Coll Sci, Changsha 410128, Hunan, Peoples R China.;[He, Feng] Hunan Univ Sci & Technol, Coll Phys & Elect Sci, Xiangtan 411201, Peoples R China.
通讯机构：
[Zhao, Fan] Hunan Agr Univ, Orient Sci & Technol Coll, Changsha 410128, Hunan, Peoples R China.;[Zhao, Fan] Hunan Agr Univ, Coll Sci, Changsha 410128, Hunan, Peoples R China.
摘要：
We investigate the influence of cosmological constant Λ on gravitational lensing. By the method of an elliptic integral, we give out the solution to the null geodesic equation in the Reissner–Nordstrom–de Sitter spacetime. The deflection angle of light is obtained by studying the intrinsic geometry of the spatial equatorial plane in the Reissner–Nordstrom–de Sitter spacetime. By applying the expansion of elliptic integrals, we find the deflection angle in the weak field limit and in the strong field limit, respectively. We find the angular position and magnification of images and discuss its behavior under changed Λ. At last, we give out the higher-order term in the strong field limit.
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英文
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Existence of Periodic Solutions for a Class of Nonlinear Difference Equations
作者：
Liu, Xia* ;Zhang, Yuanbiao;Shi, Haiping
期刊：
Qualitative Theory of Dynamical Systems ,2015年14(1):51-69 ISSN：1575-5460
通讯作者：
Liu, Xia
作者机构：
[Liu, Xia] Hunan Agr Univ, Oriental Sci & Technol Coll, Changsha 410128, Hunan, Peoples R China.;[Liu, Xia] Hunan Agr Univ, Coll Sci, Changsha 410128, Hunan, Peoples R China.;[Zhang, Yuanbiao] Jinan Univ, Packaging Engn Inst, Zhuhai 519070, Peoples R China.;[Shi, Haiping] Guangdong Construct Vocat Technol Inst, Modern Business & Management Dept, Guangzhou 510450, Guangdong, Peoples R China.
通讯机构：
[Liu, Xia] Hunan Agr Univ, Oriental Sci & Technol Coll, Changsha 410128, Hunan, Peoples R China.
关键词：
Existence;Periodic solutions;Nonlinear;Difference equations;Discrete variational theory;34C25;39A23
摘要：
By making use of the critical point theory, the existence of periodic solutions for a class of nonlinear difference equations is obtained. The proof is based on the saddle point theorem in combination with variational technique. The problem is to solve the existence of periodic solutions of a class of nonlinear difference equations. Results obtained complement the existing one.
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英文
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Transcriptome assembly and expression profiling of the molecular responses to cadmium toxicity in cerebral ganglia of wolf spider Pardosa pseudoannulata (Araneae: Lycosidae)
作者：
Yang, Huilin;Peng, Yuande;Shi, Yixue;Tian, Jianxiang;Wang, Juan;Peng, Xianjin;Xie, Chunliang;Xu, Xiang;Song, Qisheng;Wang, Zhi* ;Lv, Zhiyue*
期刊：
Ecotoxicology ,2018年27(2):198-208 ISSN：0963-9292
通讯作者：
Wang, Zhi;Lv, Zhiyue
作者机构：
[Yang, Huilin] Hunan Agr Univ, Coll Orient Sci & Technol, 1 Nongda Rd, Changsha 410128, Hunan, Peoples R China.;[Yang, Huilin; Wang, Zhi; Shi, Yixue; Wang, Juan] Hunan Agr Univ, Coll Biosci & Biotechnol, 1 Nongda Rd, Changsha 410128, Hunan, Peoples R China.;[Peng, Yuande; Xie, Chunliang] Chinese Acad Agr Sci, Inst Bast Fiber Crops, Changsha 410205, Hunan, Peoples R China.;[Tian, Jianxiang] Hunan Agr Univ, Coll Continuing Educ, 1 Nongda Rd, Changsha 410128, Hunan, Peoples R China.;[Peng, Xianjin; Xu, Xiang] Hunan Normal Univ, Coll Life Sci, Changsha 410006, Hunan, Peoples R China.
通讯机构：
[Wang, Zhi] Hunan Agr Univ, Coll Biosci & Biotechnol, 1 Nongda Rd, Changsha 410128, Hunan, Peoples R China.;[Lv, Zhiyue] Sun Yat Sen Univ, Zhongshan Sch Med, Dept Parasitol, Guangzhou 510080, Guangdong, Peoples R China.
关键词：
Cadmium;Cerebral ganglion;P. pseudoannulata;Transcriptomic
摘要：
Cadmium (Cd) is a heavy metal that can cause irreversible toxicity to animals, and is an environmental pollutant in farmlands. Spiders are considered to be an excellent model for investigating the impacts of heavy metals on the environment. To date, the changes at the molecular level in the cerebral ganglia of spiders are poorly understood. Cd exposure leads to strong damage in the nervous system, such as apoptosis and necrosis of nerve cells, therefore we conducted a transcriptomic analysis of Pardosa pseudoannulata cerebral ganglia under Cd stress to profile differential gene expression (DGE). We obtained a total of 123,328 assembled unigenes, and 1441 Cd stress-associated DEGs between the Cd-treated and control groups. Expression profile analysis demonstrated that many genes involved in calcium signaling, cGMP—PKG signaling, tyrosine metabolism, phototransduction–fly, melanogenesis and isoquinoline alkaloid biosynthesis were up-regulated under Cd stress, whereas oxidative phosphorylation-related, nervous disease-associated, non-alcoholic fatty liver disease-associated, and ribosomal-associated genes were down-regulated. Here, we provide a comprehensive set of DEGs influenced by Cd stress, and heavy metal stress, and provide new information for elucidating the neurotoxic mechanisms of Cd stress in spiders. © 2018, The Author(s).
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英文
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Homoclinic orbits of second order nonlinear functional difference equations with Jacobi operators
作者：
Liu, Xia* ;Zhang, Yuanbiao;Shi, Haiping
期刊：
Indagationes Mathematicae ,2015年26(1):75-87 ISSN：0019-3577
通讯作者：
Liu, Xia
作者机构：
[Liu, Xia] Hunan Agr Univ, Oriental Sci & Technol Coll, Changsha 410128, Hunan, Peoples R China.;[Liu, Xia] Hunan Agr Univ, Coll Sci, Changsha 410128, Hunan, Peoples R China.;[Zhang, Yuanbiao] Jinan Univ, Packaging Engn Inst, Zhuhai 519070, Peoples R China.;[Shi, Haiping] Guangdong Construct Vocat Technol Inst, Modern Business & Management Dept, Guangzhou 510450, Guangdong, Peoples R China.
通讯机构：
[Liu, Xia] Hunan Agr Univ, Oriental Sci & Technol Coll, Changsha 410128, Hunan, Peoples R China.
关键词：
Homoclinic orbits;Nonlinear difference equations;Jacobi operators;Advance and retardation;Discrete variational theory
摘要：
By using the critical point theory, the existence of a nontrivial homoclinic orbit which decays exponentially at infinity for difference equations containing both advance and retardation is obtained. The proof is based on the Mountain Pass Lemma in combination with periodic approximations. Our results obtained successfully extend and complement the results in the literature. (C) 2014 Royal Dutch Mathematical Society (KWG). Published by Elsevier B.V. All rights reserved.
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英文
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