目的：了解某部队入伍新兵的人格特征及数字搜索能力，为进一步的心理健康服务提供指导。方法采用卡特尔16种人格因素问卷（16PF）及数字搜索能力测验对某部3583名入伍新兵进行测查，将测查结果与全军士兵常模进行比较并分析与数字搜索...目的：了解某部队入伍新兵的人格特征及数字搜索能力，为进一步的心理健康服务提供指导。方法采用卡特尔16种人格因素问卷（16PF）及数字搜索能力测验对某部3583名入伍新兵进行测查，将测查结果与全军士兵常模进行比较并分析与数字搜索能力的相关性。结果新兵16PF主要因素中乐群性、聪慧性、稳定性、恃强性、兴奋性、有恒性、敢为性、世故性、实验性、自律性和次级因素中内向与外向型、感情用事与安详机警型、心理健康、专业成就个性及新环境成长能力得分高于常模（ P〈0.01）；主要因素中敏感性、怀疑性、幻想性、忧虑性、独立性、紧张性和次级因素中适应与焦虑型、怯懦与果断型及创造能力个性得分低于常模（ P 〈0.01）。数字搜索测验得分与16PF 聪慧性、稳定性、恃强性、兴奋性、有恒性、敢为性和自律性得分呈正相关（P〈0.05，P〈0.01）；与怀疑性、世故性、忧虑性和紧张性得分呈负相关（P〈0.01）。结论该部队新兵具有相对健全、良好的人格特征，数字搜索能力测验与人格测验结果间的相关关系微弱。展开更多
In this paper, a novel image encryption scheme based on Keplers third law and random Hadamard transform is proposed to ensure the security of a digital image. First, a set of Kepler periodic sequences is generated to ...In this paper, a novel image encryption scheme based on Keplers third law and random Hadamard transform is proposed to ensure the security of a digital image. First, a set of Kepler periodic sequences is generated to permutate image data, which is characteristic of the plain-image and the Keplers third law. Then, a random Hadamard matrix is constructed by combining the standard Hadamard matrix with the hyper-Chen chaotic system, which is used to further scramble the image coefficients when the image is transformed through random Hadamard transform. In the end, the permuted image presents interweaving diffusion based on two special matrices, which are constructed by Kepler periodic sequence and chaos system. The experimental results and performance analysis show that the proposed encrypted scheme is highly sensitive to the plain-image and external keys, and has a high security and speed, which are very suitable for secure real-time communication of image data.展开更多
In this study, the thermoelectric properties of pyrene molecule doped with boron and nitrogen atom at different sites of molecule are investigated using density functional theory and none-equilibrium Greens function f...In this study, the thermoelectric properties of pyrene molecule doped with boron and nitrogen atom at different sites of molecule are investigated using density functional theory and none-equilibrium Greens function formalism in the linear response regime. Our calculations show that when the impurities are added to the edge of the molecule, the anti-resonant peaks will appear in the transmission diagram in the vicinity of the Fermi energy level. So it increases the thermoelectric figure of merit of the system in comparison with the one that the impurity is located in the center of molecule. Additionally, the seebeck coefficient signs are not the same among the B, N, and N ＆ B doped devices, indicating that the types of the carriers can be changed with different types of doping.展开更多
文摘目的：了解某部队入伍新兵的人格特征及数字搜索能力，为进一步的心理健康服务提供指导。方法采用卡特尔16种人格因素问卷（16PF）及数字搜索能力测验对某部3583名入伍新兵进行测查，将测查结果与全军士兵常模进行比较并分析与数字搜索能力的相关性。结果新兵16PF主要因素中乐群性、聪慧性、稳定性、恃强性、兴奋性、有恒性、敢为性、世故性、实验性、自律性和次级因素中内向与外向型、感情用事与安详机警型、心理健康、专业成就个性及新环境成长能力得分高于常模（ P〈0.01）；主要因素中敏感性、怀疑性、幻想性、忧虑性、独立性、紧张性和次级因素中适应与焦虑型、怯懦与果断型及创造能力个性得分低于常模（ P 〈0.01）。数字搜索测验得分与16PF 聪慧性、稳定性、恃强性、兴奋性、有恒性、敢为性和自律性得分呈正相关（P〈0.05，P〈0.01）；与怀疑性、世故性、忧虑性和紧张性得分呈负相关（P〈0.01）。结论该部队新兵具有相对健全、良好的人格特征，数字搜索能力测验与人格测验结果间的相关关系微弱。
基金Project supported by the National Natural Science Foundation of China(Grant Nos.61661008 and 61603104)the Natural Science Foundation of Guangxi Zhuang Autonomous Region,China(Grant Nos.2015GXNSFBA139256 and 2016GXNSFCA380017)+3 种基金the Funding of Overseas 100 Talents Program of Guangxi Provincial Higher Education,China,the Research Project of Guangxi University of China(Grant No.KY2016YB059)the Guangxi Key Laboratory of Multi-source Information Mining&Security,China(Grant No.MIMS15-07)the Doctoral Research Foundation of Guangxi Normal University,the Guangxi Provincial Experiment Center of Information Sciencethe Innovation Project of Guangxi Graduate Education(Grant No.YCSZ2017055)
文摘In this paper, a novel image encryption scheme based on Keplers third law and random Hadamard transform is proposed to ensure the security of a digital image. First, a set of Kepler periodic sequences is generated to permutate image data, which is characteristic of the plain-image and the Keplers third law. Then, a random Hadamard matrix is constructed by combining the standard Hadamard matrix with the hyper-Chen chaotic system, which is used to further scramble the image coefficients when the image is transformed through random Hadamard transform. In the end, the permuted image presents interweaving diffusion based on two special matrices, which are constructed by Kepler periodic sequence and chaos system. The experimental results and performance analysis show that the proposed encrypted scheme is highly sensitive to the plain-image and external keys, and has a high security and speed, which are very suitable for secure real-time communication of image data.
文摘In this study, the thermoelectric properties of pyrene molecule doped with boron and nitrogen atom at different sites of molecule are investigated using density functional theory and none-equilibrium Greens function formalism in the linear response regime. Our calculations show that when the impurities are added to the edge of the molecule, the anti-resonant peaks will appear in the transmission diagram in the vicinity of the Fermi energy level. So it increases the thermoelectric figure of merit of the system in comparison with the one that the impurity is located in the center of molecule. Additionally, the seebeck coefficient signs are not the same among the B, N, and N ＆ B doped devices, indicating that the types of the carriers can be changed with different types of doping.
