谁能称自己是第一个把巴洛克时代音乐巨匠巴赫的高贵优美和现代的布鲁斯音乐同时融于摇滚乐中?恐怕真正享有此殊荣的人只有Ritchie Blackmore。是他把“古典音乐元素”添加到摇滚吉他手的辞典中。他的高难度演奏技巧为后来的重金属吉他...谁能称自己是第一个把巴洛克时代音乐巨匠巴赫的高贵优美和现代的布鲁斯音乐同时融于摇滚乐中?恐怕真正享有此殊荣的人只有Ritchie Blackmore。是他把“古典音乐元素”添加到摇滚吉他手的辞典中。他的高难度演奏技巧为后来的重金属吉他演奏家奠定了基础,Eddie Van Halen和Yngwie Malmsteen为了向他看齐而开始了挑战演奏技巧极限的旅程,并最终取得了巨大成功。他领导着Deep Purple和Rainbow两支超重量级乐队、在创造一个又一个摇滚乐商业奇迹的同时也把摇滚乐提升到了一个全新的高度。名曲《Smoke On The Water》中简单而深刻niff让不计其数的吉他手学到了重金属吉他简单而直接的一面。展开更多
A TioO2-x/TiN multilayer film was synthesized by ion beam enhanced deposition to modify the properties of material for artificial heart valve (AHV). The blood compatibility of the film was evaluated by clotting time m...A TioO2-x/TiN multilayer film was synthesized by ion beam enhanced deposition to modify the properties of material for artificial heart valve (AHV). The blood compatibility of the film was evaluated by clotting time measurement, platelet adhesion test, hemolysis analysis and protein adsorption experiment. The investigation on mechanical properties including fatigue life, wear resistance and adhesion strength between AHV material matrix and the film were carried out. the results revealed a significant improvement of blood compatibility of AHV material by the film coating, and the high level of mechanical properties have also been demonstrated. The synthesized film shows a promising of more desirable AHV material.展开更多
The estimation of evapotranspiration(ETo)is one of the main tools for the control of crop growth and to make a rational use of water resources.To estimate this parameter accurately,it is necessary to have a daily meas...The estimation of evapotranspiration(ETo)is one of the main tools for the control of crop growth and to make a rational use of water resources.To estimate this parameter accurately,it is necessary to have a daily measurement of four meteorological variables,these are:temperature,solar radiation,relative humidity and wind speed.It is not always possible to count on all the variables,that is why there are empirical methods that use a limited number of variables that make an approximate estimate of the ETo value.Each of these models are applicable to different regions with completely different climates.In this paper,a study has been carried out to define the model of ETo estimation that best adapts to the semi-arid region in South India.Two different datasets for the same period from different meteorological stations were used.In addition to the empirical methods for estimating ETo,computer models ANFIS(Adaptive Neuro-Fuzzy Inference System)were implemented.These models consist in the future estimation of a certain parameter by using current variables and a history of variables and past results.The results of this work show that ANFIS 11 model makes the best estimate with RMSD=0.002 and r=0.999.The RITCHIE method is the most suitable empirical model for this region,which reaches RMSD=0.507 and r=0.851.In addition,ranking of equations is elaborated for both datasets for daily estimates of ETo.Finally,comparison is made with the results for each case and thus confirm or reject the convenience of one model over the rest.To achieve this,a series of statistical indicators were used:Index of agreement(d),MAE(Mean absolute error),SEE(Standard error of estimate)and RMSD(Root mean square difference).Moreover,a sensitivity analysis was performed in order to compare and show the stability of the best models when an error is introduced within the input parameters.In this case,the empirical models demonstrate a better performance than the ANFIS models.This work demonstrates that the Ritchie method is a good estimator of the ETo value for a semi-arid region in southern India.In addition,the results of the ANFIS models are promising and could be used as estimation methods.展开更多
A. Grzegorczyk listed in [1] nine important open problems, of which the seventh has been answered positively by R. W. Ritchie. Now, we shall answer negatively the ninth
曝贝克汉姆将参演好莱坞大片扮暴躁武士有指贝克汉姆将首度拍摄好莱坞古装片,已签约加盟导演老友佳烈治(Guy Ritchie)新作《Knights of the Round Table:King Arthur》,片中他一改绅士形象,穿着盔甲扮演暴躁武士Blackleg Leader,非常妒...曝贝克汉姆将参演好莱坞大片扮暴躁武士有指贝克汉姆将首度拍摄好莱坞古装片,已签约加盟导演老友佳烈治(Guy Ritchie)新作《Knights of the Round Table:King Arthur》,片中他一改绅士形象,穿着盔甲扮演暴躁武士Blackleg Leader,非常妒忌能拔走石中剑的年轻亚瑟王。沃恩有望打破惯例执导《王牌特工》续集人气电影《王牌特工》日前确定拍摄续集,前作导演马修·沃恩表示自己正全力写剧本,若故事够好,沃恩有望打破自己不拍续集的传统,再导《王牌特工2》。展开更多
文摘谁能称自己是第一个把巴洛克时代音乐巨匠巴赫的高贵优美和现代的布鲁斯音乐同时融于摇滚乐中?恐怕真正享有此殊荣的人只有Ritchie Blackmore。是他把“古典音乐元素”添加到摇滚吉他手的辞典中。他的高难度演奏技巧为后来的重金属吉他演奏家奠定了基础,Eddie Van Halen和Yngwie Malmsteen为了向他看齐而开始了挑战演奏技巧极限的旅程,并最终取得了巨大成功。他领导着Deep Purple和Rainbow两支超重量级乐队、在创造一个又一个摇滚乐商业奇迹的同时也把摇滚乐提升到了一个全新的高度。名曲《Smoke On The Water》中简单而深刻niff让不计其数的吉他手学到了重金属吉他简单而直接的一面。
文摘A TioO2-x/TiN multilayer film was synthesized by ion beam enhanced deposition to modify the properties of material for artificial heart valve (AHV). The blood compatibility of the film was evaluated by clotting time measurement, platelet adhesion test, hemolysis analysis and protein adsorption experiment. The investigation on mechanical properties including fatigue life, wear resistance and adhesion strength between AHV material matrix and the film were carried out. the results revealed a significant improvement of blood compatibility of AHV material by the film coating, and the high level of mechanical properties have also been demonstrated. The synthesized film shows a promising of more desirable AHV material.
文摘The estimation of evapotranspiration(ETo)is one of the main tools for the control of crop growth and to make a rational use of water resources.To estimate this parameter accurately,it is necessary to have a daily measurement of four meteorological variables,these are:temperature,solar radiation,relative humidity and wind speed.It is not always possible to count on all the variables,that is why there are empirical methods that use a limited number of variables that make an approximate estimate of the ETo value.Each of these models are applicable to different regions with completely different climates.In this paper,a study has been carried out to define the model of ETo estimation that best adapts to the semi-arid region in South India.Two different datasets for the same period from different meteorological stations were used.In addition to the empirical methods for estimating ETo,computer models ANFIS(Adaptive Neuro-Fuzzy Inference System)were implemented.These models consist in the future estimation of a certain parameter by using current variables and a history of variables and past results.The results of this work show that ANFIS 11 model makes the best estimate with RMSD=0.002 and r=0.999.The RITCHIE method is the most suitable empirical model for this region,which reaches RMSD=0.507 and r=0.851.In addition,ranking of equations is elaborated for both datasets for daily estimates of ETo.Finally,comparison is made with the results for each case and thus confirm or reject the convenience of one model over the rest.To achieve this,a series of statistical indicators were used:Index of agreement(d),MAE(Mean absolute error),SEE(Standard error of estimate)and RMSD(Root mean square difference).Moreover,a sensitivity analysis was performed in order to compare and show the stability of the best models when an error is introduced within the input parameters.In this case,the empirical models demonstrate a better performance than the ANFIS models.This work demonstrates that the Ritchie method is a good estimator of the ETo value for a semi-arid region in southern India.In addition,the results of the ANFIS models are promising and could be used as estimation methods.
基金Project supported by the National Natural Science Foundation of China.
文摘A. Grzegorczyk listed in [1] nine important open problems, of which the seventh has been answered positively by R. W. Ritchie. Now, we shall answer negatively the ninth
文摘曝贝克汉姆将参演好莱坞大片扮暴躁武士有指贝克汉姆将首度拍摄好莱坞古装片,已签约加盟导演老友佳烈治(Guy Ritchie)新作《Knights of the Round Table:King Arthur》,片中他一改绅士形象,穿着盔甲扮演暴躁武士Blackleg Leader,非常妒忌能拔走石中剑的年轻亚瑟王。沃恩有望打破惯例执导《王牌特工》续集人气电影《王牌特工》日前确定拍摄续集,前作导演马修·沃恩表示自己正全力写剧本,若故事够好,沃恩有望打破自己不拍续集的传统,再导《王牌特工2》。
