传统的光学遥感变化监测方法,由于需要额外的数据支持,无法消除观测系统和地形等的误差影响,且相关分析存在偏差,精度较低,操作困难,因而难以广泛应用于地表形变监测等方面。采用光学影像配准和相关性分析(Co-registration of Optically...传统的光学遥感变化监测方法,由于需要额外的数据支持,无法消除观测系统和地形等的误差影响,且相关分析存在偏差,精度较低,操作困难,因而难以广泛应用于地表形变监测等方面。采用光学影像配准和相关性分析(Co-registration of Optically Sensed Images and Correlation,COSI-Corr)方法,无需地面控制点,可以实现影像的高精度配准和地表位移测量,且由于其广泛的适用性与较高的精度,已成为地表变形研究领域的一个热点,引起了研究者的广泛关注。本文首先探讨了COSI-Corr的技术原理和分析流程,并对该方法在大震同震位移测量、冰川变化监测、滑坡活动监测等方面的实际应用及其优点进行了详细介绍。最后讨论了该方法应用中的关键问题和发展前景。研究表明:光学影像配准和相关性分析方法(COSI-Corr)操作简单、效率高、分辨率高达1/10像素,可用的遥感影像数据多,并且可以应用于LiDAR差分研究中,与InSAR具有互补性,该方法可以广泛地应用在地表形变监测当中。展开更多
沙丘移动与形态监测是风沙地貌研究的重要内容,传统的测量方法对大范围的风沙地貌进行动态监测存在很大的困难。光学影像配准与关联(Co-registration of Optically Sensed Images and Correlation,COSI-Corr)技术的出现为区域风沙地貌...沙丘移动与形态监测是风沙地貌研究的重要内容,传统的测量方法对大范围的风沙地貌进行动态监测存在很大的困难。光学影像配准与关联(Co-registration of Optically Sensed Images and Correlation,COSI-Corr)技术的出现为区域风沙地貌的动态演化与监测研究提供了良好契机。讨论了COSI-Corr技术在沙丘移动和形态监测中的优势和存在的主要问题,通过无人机野外地面实测结果检验了COSI-Corr的测量精度。结果表明:沙丘背风坡底缘COSI-Corr测量精度最高,月测量误差0.01~0.53 m,达到影像分辨率的1/30像元;在沙丘背风坡底缘,COSI-Corr测量精度与沙丘底面积呈线性关系,底面积越大,COSI-Corr测量误差越大;个别沙丘脊线部位出现极大异常点,与沙丘脊线部位的光噪影响有关。COSI-Corr技术在风沙地貌监测中尚属起步阶段,一些具体的问题还需要我们在实践中不断的去检验和改进,但它确实极大提高了野外风沙地貌动态监测的效率,为研究大尺度范围内风沙地貌的时空动态演化过程提供了可能,在未来的风沙地貌研究中将具有广阔的应用前景。展开更多
For our proposed composite parity-conserved matrix product state(MPS), if only a spin block length is larger than 1, any two such spin blocks have correlation including classical correlation and quantum correlation. B...For our proposed composite parity-conserved matrix product state(MPS), if only a spin block length is larger than 1, any two such spin blocks have correlation including classical correlation and quantum correlation. Both the total correlation and the classical correlation become larger than that in any subcomponent; while the quantum correlations of the two nearest-neighbor spin blocks and the two next-nearest-neighbor spin blocks become smaller and for other conditions the quantum correlation becomes larger, i.e., the increase or the production of the long-range quantum correlation is at the cost of reducing the short-range quantum correlation, which deserves to be investigated in the future; and the ration of the quantum correlation to the total correlation monotonically decreases to a steady value as the spacing spin length increasing.展开更多
This paper firstly analyzed current situations of financial support for rural cooperative economy in China and tested the correlation between rural finance and rural cooperative economy using the grey correlation anal...This paper firstly analyzed current situations of financial support for rural cooperative economy in China and tested the correlation between rural finance and rural cooperative economy using the grey correlation analysis method. Results indicate that there is a close relationship between amount,structure and efficiency of rural finance and development of rural cooperative economy. The amount of rural finance has the largest promotion function to development of rural cooperative economy,the next is rural finance structure,and the least is efficiency of rural finance. Based on research conclusions,it came up with pertinent policy recommendations.展开更多
Focus on customer experience has proven to be one of the most important tools for the acceptance of the message of a brand by Millennials （Generation Y）. The aim of this study is to demonstrate how Generation Y infl...Focus on customer experience has proven to be one of the most important tools for the acceptance of the message of a brand by Millennials （Generation Y）. The aim of this study is to demonstrate how Generation Y influences, through their behavior and customs, the decisions to be made by the marketing area of companies. In this sense, the study seeks to demonstrate this situation by addressing the running market, which is consistently growing in Brazil and has unexplored niches, as in the case of a group of young runners who belong to Generation Y that called the attention of Nike＇s running segment, and was the focus of this research study. The case study was conducted by the qualitative method, based on an empirical investigation, in addition to a literature review. In this sense, it addressed the emergence of Generation Y, and how was the progress of the media that monitored it during this transition, going through multi-platform advertising. This approach is followed by a study of the running market and the role of Nike in it, how the project emerged and its relationship with Generation Y＇s behavior.展开更多
On the basis of the calculations and analyses of the intrapair and interpair correlation energy of KX (X = OH, NC) molecules and the results of the transferability of both the innermost intrapair correlation energy an...On the basis of the calculations and analyses of the intrapair and interpair correlation energy of KX (X = OH, NC) molecules and the results of the transferability of both the innermost intrapair correlation energy and the inner core effect of K and X in KX molecules, we defined and calculated the Kδ- and Xδ-correlation contributions to the total correlation energy of KX molecules. With the comparison of the pair correlation energy of K+, X- and KX systems, we present a simple estimation method to estimate the electron correlation energy of strong ionic compound by summarizing the correlation energy of its constituent ion and ionic group. By using this simple method, the reasonable estimation results of the correlation energy of (KOH)2 and (KNC)2 have been obtained at mp2/6-311++G(d) level with Gaussian98 program, and the deviations are very small. Applying the scheme of 'Separate Large System into Smaller Ones' to the calculation of electron correlation energy of large ionic compounds, it can not only save lot of computation work but also reach the chemical accuracy.展开更多
文摘传统的光学遥感变化监测方法,由于需要额外的数据支持,无法消除观测系统和地形等的误差影响,且相关分析存在偏差,精度较低,操作困难,因而难以广泛应用于地表形变监测等方面。采用光学影像配准和相关性分析(Co-registration of Optically Sensed Images and Correlation,COSI-Corr)方法,无需地面控制点,可以实现影像的高精度配准和地表位移测量,且由于其广泛的适用性与较高的精度,已成为地表变形研究领域的一个热点,引起了研究者的广泛关注。本文首先探讨了COSI-Corr的技术原理和分析流程,并对该方法在大震同震位移测量、冰川变化监测、滑坡活动监测等方面的实际应用及其优点进行了详细介绍。最后讨论了该方法应用中的关键问题和发展前景。研究表明:光学影像配准和相关性分析方法(COSI-Corr)操作简单、效率高、分辨率高达1/10像素,可用的遥感影像数据多,并且可以应用于LiDAR差分研究中,与InSAR具有互补性,该方法可以广泛地应用在地表形变监测当中。
文摘沙丘移动与形态监测是风沙地貌研究的重要内容,传统的测量方法对大范围的风沙地貌进行动态监测存在很大的困难。光学影像配准与关联(Co-registration of Optically Sensed Images and Correlation,COSI-Corr)技术的出现为区域风沙地貌的动态演化与监测研究提供了良好契机。讨论了COSI-Corr技术在沙丘移动和形态监测中的优势和存在的主要问题,通过无人机野外地面实测结果检验了COSI-Corr的测量精度。结果表明:沙丘背风坡底缘COSI-Corr测量精度最高,月测量误差0.01~0.53 m,达到影像分辨率的1/30像元;在沙丘背风坡底缘,COSI-Corr测量精度与沙丘底面积呈线性关系,底面积越大,COSI-Corr测量误差越大;个别沙丘脊线部位出现极大异常点,与沙丘脊线部位的光噪影响有关。COSI-Corr技术在风沙地貌监测中尚属起步阶段,一些具体的问题还需要我们在实践中不断的去检验和改进,但它确实极大提高了野外风沙地貌动态监测的效率,为研究大尺度范围内风沙地貌的时空动态演化过程提供了可能,在未来的风沙地貌研究中将具有广阔的应用前景。
基金Supported by the National Natural Science Foundation of China under Grant No.10974137the Major Natural Science Foundation of the Educational Department of Sichuan Province under Grant No.14ZA0167
文摘For our proposed composite parity-conserved matrix product state(MPS), if only a spin block length is larger than 1, any two such spin blocks have correlation including classical correlation and quantum correlation. Both the total correlation and the classical correlation become larger than that in any subcomponent; while the quantum correlations of the two nearest-neighbor spin blocks and the two next-nearest-neighbor spin blocks become smaller and for other conditions the quantum correlation becomes larger, i.e., the increase or the production of the long-range quantum correlation is at the cost of reducing the short-range quantum correlation, which deserves to be investigated in the future; and the ration of the quantum correlation to the total correlation monotonically decreases to a steady value as the spacing spin length increasing.
文摘This paper firstly analyzed current situations of financial support for rural cooperative economy in China and tested the correlation between rural finance and rural cooperative economy using the grey correlation analysis method. Results indicate that there is a close relationship between amount,structure and efficiency of rural finance and development of rural cooperative economy. The amount of rural finance has the largest promotion function to development of rural cooperative economy,the next is rural finance structure,and the least is efficiency of rural finance. Based on research conclusions,it came up with pertinent policy recommendations.
文摘Focus on customer experience has proven to be one of the most important tools for the acceptance of the message of a brand by Millennials （Generation Y）. The aim of this study is to demonstrate how Generation Y influences, through their behavior and customs, the decisions to be made by the marketing area of companies. In this sense, the study seeks to demonstrate this situation by addressing the running market, which is consistently growing in Brazil and has unexplored niches, as in the case of a group of young runners who belong to Generation Y that called the attention of Nike＇s running segment, and was the focus of this research study. The case study was conducted by the qualitative method, based on an empirical investigation, in addition to a literature review. In this sense, it addressed the emergence of Generation Y, and how was the progress of the media that monitored it during this transition, going through multi-platform advertising. This approach is followed by a study of the running market and the role of Nike in it, how the project emerged and its relationship with Generation Y＇s behavior.
基金This work was supported by the National Natural Science Foundation of China (Grant Nos. 29873023 and 20173027).
文摘On the basis of the calculations and analyses of the intrapair and interpair correlation energy of KX (X = OH, NC) molecules and the results of the transferability of both the innermost intrapair correlation energy and the inner core effect of K and X in KX molecules, we defined and calculated the Kδ- and Xδ-correlation contributions to the total correlation energy of KX molecules. With the comparison of the pair correlation energy of K+, X- and KX systems, we present a simple estimation method to estimate the electron correlation energy of strong ionic compound by summarizing the correlation energy of its constituent ion and ionic group. By using this simple method, the reasonable estimation results of the correlation energy of (KOH)2 and (KNC)2 have been obtained at mp2/6-311++G(d) level with Gaussian98 program, and the deviations are very small. Applying the scheme of 'Separate Large System into Smaller Ones' to the calculation of electron correlation energy of large ionic compounds, it can not only save lot of computation work but also reach the chemical accuracy.
