创新性化学人才培养中的探究性实验教学研究与思考

在高等教育深化改革的形势下,通过分析国内外化学实验的教学现状,对高校化学专业的探究性实验教学进行了思考与探索。     

《齐齐哈尔师范学院学报》(自然科学版)1987～1994年数学、物理、化学学科论文引文分析

本文运用文献计量学方法,对《齐齐哈尔师范学院学报》(自然科学版)1987～1994年8卷共32期中数学、物理、化学学科的论著引用的文献进行了统计分析,引文的分布规律表明该刊的质量较好.同时分析出各学科的外文和中文核心期刊.     

AB环量子点结构的电子输运

用格林函数方法研究了嵌在介绍AB环一臂中量子点的电子输运性质,数值计算表明：沿着每一共振峰,其输运相位连续的增加π,在两共振峰间的某个位置,其输运相位突然减小π,从而每一共振峰具有相同的相行为,理论结果与实验观测较好的相符。     

《化学与环境》网络课程的设计与制作

以Dreamweaver、Flash、Photoshop为主要工具,开发了《化学与环境》网络课程。该网络课程采用模块化设计和有效的超文本结构,具有灵活自主性和可扩展性,能够不断适应教学内容、学科知识的变化,满足教学需要。直观友好的交互界面、简洁清晰的导航系统、多媒体技术的综合应用有利于调动学生的学习积极性,加深对教学难点的理解,实现最佳的学习效果。     

无机苯芳香性的理论研究

采用最子化学从头算方法,在HF/6-311G^*和B3LYP/6-311G^*基组水平上,对苯和无机苯（B3N3H6）进行了计算,从结构判据,能量判据,磁性判据和键级判据四方面系统地讨论了无机苯的芳香性问题,并与苯的芳香性进行了比较。结果表明,无机苯具有芳香性,但较有机苯为弱。     

双轴亚铁磁粒子中的量子位相干涉

本文研究了外磁场沿难磁化轴和中间磁化轴所在平面上任意方向时,亚铁磁颗粒中的量子位相干涉。     

钠光谱分析中运算方法的改进

本文对近代物理实验项目《钠原子光谱的拍摄与分析》的传统教学内容提出了改进,并将微机引入了实验教学。     

REPRESENTATIONS OF A CLASS OF ASSOCIATIVE ALGEBRAS ON THE QUANTUM TORUS OF RANK n

In this paper,we present three types of representations over Anq defined based on the quantum torus of rank n,which are closely related to modules over some vertex algebras. The isomorphism classes among these modules are also determined.     

Emergence in holographic scenarios for gravity

‘Holographic’ relations between theories have become an important theme in quantum gravity research. These relations entail that a theory without gravity is equivalent to a gravitational theory with an extra spatial dimension. The idea of holography was first proposed in 1993 by Gerard ׳t Hooft on the basis of his studies of evaporating black holes. Soon afterwards the holographic ‘AdS/CFT’ duality was introduced, which since has been intensively studied in the string theory community and beyond. Recently, Erik Verlinde has proposed that even Newton׳s law of gravitation can be related holographically to the ‘thermodynamics of information’ on screens. We discuss these scenarios, with special attention to the status of the holographic relation in them and to the question of whether they make gravity and spacetime emergent. We conclude that only Verlinde׳s scheme straightforwardly instantiates emergence. However, assuming a non-standard interpretation of AdS/CFT may create room for the emergence of spacetime and gravity there as well.     

Whence the eigenstate–eigenvalue link?

David Wallace has recently argued that the eigenstate–eigenvalue (E–E) link has no place in serious discussions of quantum mechanics on the grounds that, as he claims, the E–E link is an invention of philosophers rather than the community of practicing physicists. This raises an historical question regarding the origin of the link. This paper aims to answer this question by tracing the historical development of the link through six key textbooks of quantum mechanics. In light of the historical evidence from these textbooks, it is argued that Wallace provides insufficient grounds for dismissing the E–E link from discussions of quantum mechanics.