家庭电脑软件

有的家庭购买了电脑之后,舍不得购买适合家庭用的软件,只用电脑打字或玩游戏,显得单调和乏味,其实买软件就像买了录像机还需录像带一样,只有“软硬兼施”电脑才能活起来。适合于家庭的软件主要有以下几类: (1)教育类:这类软件又称计算机辅助教学CAI软件,它包括用于幼教、中学、大学和成人教学的不同类型的教学软件,还包括为就业而进行的职业预备教育,如电脑打字、文字编辑、数据库操作等。它可以有练习式、教学式、模拟式、游戏式、     

林维达副博士到我校进行学术访问

四月二十六日上午,复旦大学高级进修生、苏联远东大学东方系副博士林维达副教授,就其论文中有关贵州农民战争史问题专程从上海来我校访问学报编辑部主任何长凤。何长凤对有关情况作了介绍,对有些问题作了解答,并给予指导。会见结束时,何     

Effect of Laser Cooling on Frequency Standard of Single Ca^＋ Ion Trapped in a Radio-Frequency Paul Trap

The source of systematic frequency shift of single-ion optical frequency standard of^40 Ca^＋ ion trapped in endcap trap and laser-cooled to a few of mK is analysed and calculated. Second-order Doppler shift, Stark shift due to micromotion and thermal motion, blackbody Stark shift and ac Stark shift are calculated for the ground state and excited 3d ^2D5/2 state. The Hertz-level measurement of the optical clock frequency in a single ^40Ca^＋ ion can be performed.     

A Novel Method for Measuring the Photo－Induced Birefringence of Photosensitive Fibres Based on a Fibre Loop ＊

We report a novel method for measuring photo-induced birefringence of photosensitive fibres based on a fibre loop.The method is simple and is only slightly affected by the surroundings. The experimental results show that thephoto-inducing normalized birefringence of the photosensitive fibre is multi-decaying-exponentially proportionalto the exposure and it can attain 10^-5.     

提高质量 办出特色

要坚持学术性与现实性统一要实行教学与科研相结合,提高学术水平要加强学报编辑部工作的改革与建设     

Bend Sensing with Temperature-insensitive Long-period Fiber Grating

The changes in wavelength and attenuation of temperature-insensitive long period fiber grating subjected to bends with curvatures from 0 to 4.4 m-1 are examined. The wavelength change with curvature is nonlinear and the minimum detectable curvature change is 0.03 m-1.