来自德克萨斯的设计

黄汝修（Albert Y.Wong)出生于中国大陆，成长于香港。1970年获美国哥伦布艺术设计学院美术学士学位，1974年获美国俄亥俄肯州立大学美术硕士学位；1979年至1982年在伊利诺斯州立大学美术教育博士班学习。     

Small amphiphilic organics, coordination extended solids, and constant curvature structures

In this Account, we explore the role constant curvature structures play in amphiphilic small molecule crystals and extended coordination solids. A constant curvature structure is one in which there is a surface or interface that has the same curvature throughout its surface. Simple examples of such structures contain spheres (micelles), columns, or layers. Yet another family are cubic as is found in the gyroid topology. For amphiphilic systems, there are two domains, one generally hydrophobic and the other hydrophilic. We find that the interfaces between these two domains in small molecule structures resemble those in larger scale systems and adopt topologies related to constant curvature structures. The hydrophobic-to-total volume ratio, a molecular parameter, can be used to predict which type of constant curvature structure is adopted. In the case of three coordinate extended solids, constant curvature plays a role both in the extended net topology and in the hydrophobic-to-hydrophilic interface.     

Effects of process errors on the diffraction characteristics of binary dielectric gratings

The effects of fabrication errors on the predicted performance of surface-relief phase gratings are analyzed with a rigorous vector diffraction technique. For binary elements, errors in the dimensions of the profile [depth, linewidth (fill factor), and grating period], as well as errors in the shape of the profile, are investigated. It is shown that the dimension errors do not have a significant effect on grating performance when the grating is designed for either maximum or minimum diffraction efficiency. A trapezoid is used to model the shape error of the profile. For the first time, design rules that significantly reduce the effects of any shape error are presented.     

Optical constants in the IR from thin film interference and reflectance: the reststrahlen region of muscovite mica

A new technique for determining the IR optical constants of materials that can be formed into thin films is presented. At a given wavelength the thickness of the film t, the index of refraction n, and the extinction coefficient k combine to produce interference effects in the film, which in turn control reflectance from the film. When reflectance is plotted vs thickness the resultant curve is a unique function of n and k. Values of n and k are determined by curve fitting. The technique is illustrated using thin films of muscovite mica, and values of n and k are reported for wave numbers from 1200 to 400 cm-1, which include the reststrahlen region of mica.     

棉/改性涤纶交织物的吸湿排汗性能评价

利用微量水分管理仪(MMT)对经纬密度相同、经纱为18.2 tex棉、纬纱为3种不同改性涤纶长丝的9块机织物进行了动态水分传递性能研究,并利用灰色关联度理论对符合吸湿排汗指标要求的7块织物进行了综合性能排序.结果表明:改性涤纶纱的浮长越大,越有利于汗液的排出,浮长最短的平纹织物对水分的单向输送能力最弱;棉/3#改性涤纶的3/1斜纹织物和棉/2#改性涤纶的点格织物具有相对最佳的吸湿排汗及速干性能.     

品牌创意四步曲

品牌之所以成为品牌,那是因为它比其它同类产品更具有品牌个性和品牌魅力。企业品牌与先天因素没有太大的关系,更多的还是在后天的创意性塑造和培育。受欢迎的品牌似乎都有一些共同的特征:一就是要有一个叫得响的品牌名称,二就是要有不断创新的产品设计和包装设计,三就是产品在什么时候都要有一句广为流传的广告语,四就是产品营销在什么时候都能有效地构建起与消费者的情感交流和满足消费者的利益。     

专家谈差异化营销

差异化营销已是当今品牌策划的重要理念,许许多多有志创建自主品牌的企业都对差异化营销表现出极大的关注.许许多多取得卓越成就的企业,也是因为深谙差异化营销的要诣.     

企业品牌成长的十大模式及经典案例

企业品牌的成长是指企业在市场中知名度、美誉度、信任度、追随度等的提升或品牌无形资产的价值提升.在激烈的市场竞争中,扩大市场需求、获取竞争优势、提升企业价值等方面,品牌的地位和作用愈来愈突出,品牌已成为当今企业经营者与消费者共同的追求.