信息化环境下的教室资源管理系统开发初探

本文根据信息化环境下学分制高校对教室资源管理的要求,进行了教室资源管理系统的分析与研究,从而实现了计算机完成教室资源管理的过程。该系统的使用能够最大限度地减轻教学管理人员的工作负担,从而进一步提高工作效率和准确性。     

Fast calibration methods using cosmic rays for a neutron detection array

An overall irradiation and calibration technique was introduced and applied to a test scintillation detector array. An integral conversion method was used to reduce the nonlinearity of the time difference spectrum, and to improve the position determination especially for positions close to the two ends of a long scintillation bar. An overall position resolution of about 3.0 cm (FWHM) was extracted from the residual analysis method and verified by a direct measurement. Energy calibration was also realized by selecting cosmic rays at different incident angles. The bulk light attenuation lengths for the four test bars were also determined. It is demonstrated that these methods are especially efficient for calibrating large and complex detector arrays.     

乐家湾锑矿矿体特征及外围找矿前景分析

首先分析了广东省乐昌市乐家湾锑矿区的地质背景,在此基础上,对矿床特征、矿体特征和矿石特征进行了研究。经分析和研究表明,在矿床深部及矿区周边仍有找矿潜力。     

现代信息技术对传统教学方式的优化

现代教育提倡以学生为主体,增加师生互动,而这在传统的教育方式中往往是被忽略的,现代信息技术在教育领域中的广泛应用为现代教育提供了一个良好的环境,同时也在改变着传统的教育方式。     

浅谈大学体育与大学精神中的科学精神

本文通过对大学精神和大学体育教育的研究,得出大学体育与大学精神中的科学精神密切相关,并且相辅相成的结论。提出了要将大学体育教育明确地上升到精神层次的观点,为今后的大学体育教育指明了新的方向。     

LED显示屏控制系统的软件设计

LED显示系统是根据点阵数据来显示汉字、字符及图像信息的。该设计利用字库将输入文本的字模提取出来,转换为适用于单片机的格式,并可将其保存为.txt文件或利用VB的Ac-tiveX控件通过串口与单片机进行通信,具体的通信参数可以动态设置,从而实现对LED显示屏的控制作用。     

A New Measurement of ~(11)Be(p,d) Transfer Reaction

A new11 Be(p,d) transfer reaction experiment is performed in inverse kinematics with a radioactive11 Be beam at26.9 MeV. Three low-lying states, namely the 0+ground state, the 2~+ state at E_x = 3.37 MeV, and the multiplet at around 6 MeV in10 Be, are populated by this one-neutron transfer reaction. These three states in10 Be are clearly discriminated from the -value spectrum, which is rebuilt from energies and angles of the recoil deuterons in coincidence with10 Be. A spectroscopic factor for each state is extracted by comparing the experimental differential cross sections to the theoretical calculation results using the finite range adiabatic distorted wave approximation method with different global nucleon-nucleus potentials. It is found that the newly extracted spectroscopic factors for the 0+and 2+states are consistent with the previous ones, but the factor for the multiplet is smaller than the value in the reference, and the possible reason is discussed.     

耦合场失谐对闭合Λ型四能级系统中电磁诱导透明和电磁诱导吸收的影响

电磁诱导透明(EIT)和电磁诱导吸收(EIA)是光与物质相互作用中表现出来的奇特的非线性效应,对其形成机理及非线性特性的研究具有重要的理论意义和巨大的潜在应用价值.构建一个闭合Λ型四能级系统包括两个基态精细结构能级和两个激发态精细结构能级,除耦合场和探测场外,还附加了两个射频场分别作用于激发态精细结构能级和基态精细结构...     

沥青路面早期破坏的原因及防治措施

分析了沥青路面早期破坏的主要原因，探讨了主要防治措施，以期提高沥青路面的使用质量，取得良好的使用效益。