《物理现象探索》课与素质教育

《物理现象探索》课以培养能力和提高科学素质为主要目标，引导学生大胆设想，放手实践，从现象的细微差异中探索物理规律，在学习中增加兴趣，提高能力。     

基于遗传算法的VLSI布图规划方法

提出了一种有效的基于遗传算法的VLSI布图规划方法.在染色体的表达中,对软模块不同形状和硬模块的布局方向进行了编码,并设计了有效的启发式解码方法进行解码.测试结果表明,该算法比已有算法得到了更优的结果.     

用RHEED强度振荡锁相外延控制Ge/Si超晶格的生长

观察了Ge,Ge/Si交替外延时的反射式高能电子衍射(RHEED)强度振荡现象,并由此研究了Si(100)和Si(111)衬底上分子束外延Ge,Ge/Si超薄叠层的生长行为和生长特性。利用RHEED强度振荡,锁相控制生长了Ge(2ML)/Si(2ML),Ge(4ML)/Si(4ML)超薄超晶格。 关键词：     

3D影响健康，是苛责还是动力？

应该说,当《阿凡达》的3D大潮席卷整个世界时,对于去不去看这部电影我依然分外纠结。曾记得,还是少年时,第一次观赏3D电影带来的眩晕感让我在盛夏的南京街头大吐特吐、浑身发冷于是乎,一朝被蛇咬、十年怕井绳。我从那以后就一直对3吸球幕立体电影敬而远之,长大后,问及身边好友,童年时观看3D电影有此感觉的居然不在少数。     

精致 精准 精确——马田·卢根Motion12落地式音箱

在音响发烧友心目中．美国马田·卢根（MartinLogan）几乎就是静电音箱的代名词，独树一帜的静电扬声器技术结合独立箱体的动圈低音单元，构成了完整的频率响应与风格独特的声音特性。     

Frequencies-Selected Enhancement of the Extended High-Order Harmonic Generation Plateau from a United Two-Atom System Irradiated by a Combined Pulse

We present a high-order harmonic generation (HHG) spectrum from a united two-atom system exposed to a combined laser pulse, by numerically solving a one-dimensional time-dependent Schr6dinger equation. The combined laser pulse is composed of a low-frequency femtosecond pulse and a high-frequency attosecond one with respective appropriate amplitudes. For a suitable inter-nuclear separation, the harmonic emission efficiencies near the second cutoff of the extended plateau can be effectively enhanced by more than four orders of magnitude compared with the case of the low-frequency pulse alone. Such a combined pulse irradiating on the united twoatom system ionizes each atom, in a large rate (but not to a too large ionization yield), mainly at a particular time-interval. When the ionized electron from an atom reaches at the vicinity of the other atom and recombines with it, significant HHG enhancement is achieved for particular harmonics. This result, to our knowledge, is one of the best up to now in the endeavor for dramatically extending the width and simultaneously enhancing the height of the plateau.     

IC制造商面临产品质量保证的艰难挑战

晶圆加工工艺尺寸的减小,芯片封装引脚数的增加,以及新的绿色产品要求,需要全面的质量管理才能保证产品的高质量     

一维μ介子模型原子的超强场高次谐波发射

本文提出了一个一维μ介子原子模型,用数值积分方法求解了在超强激光场作用下该模型原子的含时Schrdinger方程,得到了它的高次谐波发射谱.该谱表明,借助于这一奇异原子模型,可将相干辐射由XUV波段推向γ-射线波段.针对这个体系的高次谐波发射效率低的缺点,引入双色场后使发射效率提高了两个数量级.