In Wireless Sensor Networks(WSN),attacks mostly aim in limiting or eliminating the capability of the network to do its normal function.Detecting this misbehaviour is a demanding issue.And so far the prevailing researc...In Wireless Sensor Networks(WSN),attacks mostly aim in limiting or eliminating the capability of the network to do its normal function.Detecting this misbehaviour is a demanding issue.And so far the prevailing research methods show poor performance.AQN3 centred efficient Intrusion Detection Systems(IDS)is proposed in WSN to ameliorate the performance.The proposed system encompasses Data Gathering(DG)in WSN as well as Intrusion Detection(ID)phases.In DG,the Sensor Nodes(SN)is formed as clusters in the WSN and the Distance-based Fruit Fly Fuzzy c-means(DFFF)algorithm chooses the Cluster Head(CH).Then,the data is amassed by the discovered path.Next,it is tested with the trained IDS.The IDS encompasses‘3’steps:pre-processing,matrix reduction,and classification.In pre-processing,the data is organized in a clear format.Then,attributes are presented on the matrix format and the ELDA(entropybased linear discriminant analysis)lessens the matrix values.Next,the output as of the matrix reduction is inputted to the QN3 classifier,which classifies the denial-of-services(DoS),Remotes to Local(R2L),Users to Root(U2R),and probes into attacked or Normal data.In an experimental estimation,the proposed algorithm’s performance is contrasted with the prevailing algorithms.The proposed work attains an enhanced outcome than the prevailing methods.展开更多
Physiological indices related to the efficiency (F-v/F-m) of light energy conversion in PS II and the peroxidation of membrane lipid were measured in leaves of Oryza sativa L. sp. indica rice cv. 'Shanyou 63' ...Physiological indices related to the efficiency (F-v/F-m) of light energy conversion in PS II and the peroxidation of membrane lipid were measured in leaves of Oryza sativa L. sp. indica rice cv. 'Shanyou 63' and sp. japonica rice cv. '9516'' under different temperatures and fight intensities for 4 days. No changes in F-v/F-m and membrane lipid peroxidation product (MDA) were observed, so neither photoinhibition nor photooxidation happened in both rice cultivars under moderate temperature and medium light intensity. However, F-v/F-m dropped obviously with no change in MDA contents, and photoinhibition appeared in indica rice cv. 'Shanyou 63' under medium temperature and strong light intensity. Furthermore, both photoinhibition and photooxidation were observed in two rice cultivars under chilling temperature and strong light intensity. Experiments with inhibitors under chilling temperature and strong light intensity showed that indica rice had a decrease in DI protein content and SOD activity, and the extent of inhibition of xanthophyll. cycle and nonphotochemical quenching (qN) was larger, and a higher level of MDA was observed. The photoinhibition and photooxidation in indica rice were more distinct as compared with japonica rice. The authors suggested that PS II light energy conversion efficiency (F-v/F-m) and membrane lipid peroxidation were the key indices for the detection of photooxidation.展开更多
为了在病理嗓音识别中为特征参数选择提供依据,提出声带非对称力学建模仿真病变声带并进行分析研究。依据声带的分层结构和组织特性,建立声带力学模型,耦合声门气流,求取模型输出的声门源激励波形。采用遗传粒子群-拟牛顿结合优化算法(G...为了在病理嗓音识别中为特征参数选择提供依据,提出声带非对称力学建模仿真病变声带并进行分析研究。依据声带的分层结构和组织特性,建立声带力学模型,耦合声门气流,求取模型输出的声门源激励波形。采用遗传粒子群-拟牛顿结合优化算法(Genetic particle swarm optimization based on quasi-Newton method,GPSO-QN)将模型输出的声门源和实际目标声门波相匹配,提取优化模型参数。仿真实验结果表明,该声带模型能产生与实际声门源相一致的声门波形,同时也证明了左右声带生理组织间的非对称性是产生病理嗓音的重要原因。展开更多
以莱芜生姜（Zingiber of ficinale Rosc.）离体叶片为试验材料,研究了不同浓度抗坏血酸（AsA）对强光照射下姜离体叶片光抑制及抗氧化酶活性的影响。结果显示,在强光条件下,姜离体叶片的Fv/Fm、qP和qN随强光照射时间增加呈下降趋势。...以莱芜生姜（Zingiber of ficinale Rosc.）离体叶片为试验材料,研究了不同浓度抗坏血酸（AsA）对强光照射下姜离体叶片光抑制及抗氧化酶活性的影响。结果显示,在强光条件下,姜离体叶片的Fv/Fm、qP和qN随强光照射时间增加呈下降趋势。在照光10～30min,较低浓度AsA（10、50、100mmol·L-1）处理的Fv/Fm高于CK和150mmol·L-1AsA处理。10mmol·L-1AsA处理的叶片qP值始终高于对照,所有AsA处理qN都高于对照。AsA处理叶片的超氧化物岐化酶（SOD）和脱氢抗坏血酸还原酶（DHAR）活性高于对照。强光照射30min时,10、50、100mmol·L-1AsA处理的过氧化物酶（POD）和抗坏血酸过氧化物酶（APX）活性高于对照和高浓度的AsA处理（150mmol·L-1）,尤以10mmol·L-1AsA处理最佳,Fv/Fm和qP分别比对照高7.22%、15.88%,qN和抗氧化酶活性也维持较高水平。研究表明外源AsA对强光引起的姜叶片光抑制有一定的保护作用。展开更多
基金The National Natural Science Foundation of China(1097118510971186+2 种基金61379021)Fujian Province Support College Research Plan Project(JK2011031)The Natural Science Foundation of Fujian Province(2013J01029)
文摘In Wireless Sensor Networks(WSN),attacks mostly aim in limiting or eliminating the capability of the network to do its normal function.Detecting this misbehaviour is a demanding issue.And so far the prevailing research methods show poor performance.AQN3 centred efficient Intrusion Detection Systems(IDS)is proposed in WSN to ameliorate the performance.The proposed system encompasses Data Gathering(DG)in WSN as well as Intrusion Detection(ID)phases.In DG,the Sensor Nodes(SN)is formed as clusters in the WSN and the Distance-based Fruit Fly Fuzzy c-means(DFFF)algorithm chooses the Cluster Head(CH).Then,the data is amassed by the discovered path.Next,it is tested with the trained IDS.The IDS encompasses‘3’steps:pre-processing,matrix reduction,and classification.In pre-processing,the data is organized in a clear format.Then,attributes are presented on the matrix format and the ELDA(entropybased linear discriminant analysis)lessens the matrix values.Next,the output as of the matrix reduction is inputted to the QN3 classifier,which classifies the denial-of-services(DoS),Remotes to Local(R2L),Users to Root(U2R),and probes into attacked or Normal data.In an experimental estimation,the proposed algorithm’s performance is contrasted with the prevailing algorithms.The proposed work attains an enhanced outcome than the prevailing methods.
文摘Physiological indices related to the efficiency (F-v/F-m) of light energy conversion in PS II and the peroxidation of membrane lipid were measured in leaves of Oryza sativa L. sp. indica rice cv. 'Shanyou 63' and sp. japonica rice cv. '9516'' under different temperatures and fight intensities for 4 days. No changes in F-v/F-m and membrane lipid peroxidation product (MDA) were observed, so neither photoinhibition nor photooxidation happened in both rice cultivars under moderate temperature and medium light intensity. However, F-v/F-m dropped obviously with no change in MDA contents, and photoinhibition appeared in indica rice cv. 'Shanyou 63' under medium temperature and strong light intensity. Furthermore, both photoinhibition and photooxidation were observed in two rice cultivars under chilling temperature and strong light intensity. Experiments with inhibitors under chilling temperature and strong light intensity showed that indica rice had a decrease in DI protein content and SOD activity, and the extent of inhibition of xanthophyll. cycle and nonphotochemical quenching (qN) was larger, and a higher level of MDA was observed. The photoinhibition and photooxidation in indica rice were more distinct as compared with japonica rice. The authors suggested that PS II light energy conversion efficiency (F-v/F-m) and membrane lipid peroxidation were the key indices for the detection of photooxidation.
文摘为了在病理嗓音识别中为特征参数选择提供依据,提出声带非对称力学建模仿真病变声带并进行分析研究。依据声带的分层结构和组织特性,建立声带力学模型,耦合声门气流,求取模型输出的声门源激励波形。采用遗传粒子群-拟牛顿结合优化算法(Genetic particle swarm optimization based on quasi-Newton method,GPSO-QN)将模型输出的声门源和实际目标声门波相匹配,提取优化模型参数。仿真实验结果表明,该声带模型能产生与实际声门源相一致的声门波形,同时也证明了左右声带生理组织间的非对称性是产生病理嗓音的重要原因。
文摘以莱芜生姜（Zingiber of ficinale Rosc.）离体叶片为试验材料,研究了不同浓度抗坏血酸（AsA）对强光照射下姜离体叶片光抑制及抗氧化酶活性的影响。结果显示,在强光条件下,姜离体叶片的Fv/Fm、qP和qN随强光照射时间增加呈下降趋势。在照光10～30min,较低浓度AsA（10、50、100mmol·L-1）处理的Fv/Fm高于CK和150mmol·L-1AsA处理。10mmol·L-1AsA处理的叶片qP值始终高于对照,所有AsA处理qN都高于对照。AsA处理叶片的超氧化物岐化酶（SOD）和脱氢抗坏血酸还原酶（DHAR）活性高于对照。强光照射30min时,10、50、100mmol·L-1AsA处理的过氧化物酶（POD）和抗坏血酸过氧化物酶（APX）活性高于对照和高浓度的AsA处理（150mmol·L-1）,尤以10mmol·L-1AsA处理最佳,Fv/Fm和qP分别比对照高7.22%、15.88%,qN和抗氧化酶活性也维持较高水平。研究表明外源AsA对强光引起的姜叶片光抑制有一定的保护作用。
