铝－锂合金中δ’（Al＿3Li）沉淀相时效粗化行为及体积分数的测定

对经固溶处理的二种Ａｌ－Ｌｉ合金（１．９４ｗｔ．％Ｌｉ和２．７５ｗｔ．％Ｌｉ）的时效过程进行了研究。结果表明：δ’的生长速率遵从Ｏｓｔｗａｒｄ粗化动力学。１．９４ｗｔ．％Ｌｉ合金δ’产生于时效过程中，而２．７５ｗｔ．％Ｌｉ合金的δ’产生于时效的前期阶段。前者的表现体积分数明显大于根据相图估算的数伍，真实体积分数则与此值接近；后者的体积分数低于根据相图估算的数值，这可能归咎于δ’固相线的位置、统计学误差及Ｌｉ更易在时效过程中贫化。     

杜比：提高全球消费者娱乐体验

由于大陆开放，国民更加容易外游，目前一两年国内影音市场也许难见大增长，但于未来几年，针对于有高素质的国际有名品牌影音产品可望有合理的调升。与智能控制相结合的家庭影院将会是未来的主流，它可使用家真正有超级的享受。     

Ⅱ．印刷Vs．滴涂

为了适应6万-8万cph(元件数川、时）高速贴装系统发展的需要，提高印制板上电子元器件的贴装速度就成为解决装配生产线上“瓶颈”的关键。充分利用每小时能形成50万个焊膏点的模板印刷机米涂敷贴装胶和其它粘合剂，其高速性能可为制造商带来丰厚回报。     

CSP工艺生产微钛钢中的碳氮化物析出相

在钢中添加一定量的Ti可以提高钢的力学性能。细小的TiN弥散粒子可起到一些有利作用。例如，TiN粒子可以细化钢的铸态组织；减少有害夹杂物的析出；提高奥氏体粗化温度；防止形成过大的奥氏体晶粒等。     

Effects of Substrate Temperature on Helium Content and Microstructure of Nanocrystalline Titanium Films

Helium-charged nanocrystalline titanium films have been deposited by HeAr magnetron co-sputtering. The effects of substrate temperature on the helium content and microstructure of the nanocrystalline titanium films have been studied. The results indicate that helium atoms with a high concentration are evenly incorporated in the deposited titanium films. When the substrate temperature increases from 60℃ to 350℃ while the other deposition＇parameters are fixed, the helium content decreases gradually from 38.6 at.% to 9.2at.%, which proves that nanocrystalline Ti films have a great helium storage capacity. The 20 angle of the Bragg peak of （002） crystal planes of the He-charged Ti film shifts to a lower angle and that of （100） crystal plane is unchanged as compared with that of the pure Ti film, which indicates that the lattice parameter c increases and a keeps at the primitive value. The grain refining and helium damage result in the diffraction peak broadening.     

非晶硅薄膜的低温快速晶化及其结构分析

在镀铝的廉价玻璃衬底上高速沉积的非晶硅薄膜在不同的温度下退火10min.退火温度为500℃时,薄膜表面形成了硅铝的混合相,非晶硅薄膜开始呈现了晶化现象 退火温度为550℃时,大部分(约80%)的非晶硅晶化为多晶硅,平均晶粒尺寸为500nm 退火温度为600℃时,几乎所有的非晶硅都转化为多晶硅,其平均晶粒尺寸约为15μm.     

新型微波-毫米波幅相测试系统及扩展应用

介绍了一种新型微波 毫米波幅相测试系统及其在相关测试领域中的典型应用。与传统微波幅相测试系统相比 ,该系统具有原理新颖、结构简单、扩展频段容易和使用方便等优点。本系统目前广泛应用于紧缩场电气性能检测、天线测量和RCS测量等领域中 ,频率范围为 1～ 110GHz。本测试系统已经申请国家专利 ,并通过相关部门鉴定。     

Entangled States Based on Two Coherent States 3π/2 out of Phase

Entangled states based on two coherent states 3π/2 out of phase with each other, i.e. ｜α〉 and e^iФ｜-iα〉, as well as on a special state with a relative phase Ф = ｜α｜^2, are constructed. By analysing the amount of entanglement it is evident that entangled states based on this special state can be used as an excellent resource for quantum teleportation. It is also revealed that these entangled states possess some nonclassical features.