Raman scattering in Me-doped ZnO nanorods (Me = Mn, Co, Cu and Ni) prepared by thermal diffusion

We have investigated normal and resonant Raman scattering in Me-doped ZnO nanorods (Me = Mn, Co, Cu and Ni) prepared by thermal diffusion. Experimental results show that the normal Raman spectra consist of the conventional modes associated with wurtzite ZnO and impurity-related additional modes. Under resonant conditions, only longitudinal optical (LO) phonon scattering and its overtones are observed. The number of LO phonon lines and their relative intensity depend on the doping element and level. For the nanorods doped with Cu and Ni, we have observed LO phonon overtones up to eleventh order. This situation does not happen for the Mn-doped nanorods, which show only five LO phonon modes. By co-doping Mn and Co into the ZnO host lattice, however, the LO phonon overtones up to eleventh order are observed again. The nature of this phenomenon is explained by means of the study of XRD, TEM and photoluminescence.     

诙谐文字装饰

字图像印花全面升级,文运用大受追捧Anthony Vaccarello整个系列真正的创新在于那些醒目的撞色字母装饰,根据设计师的解释,它们是用激光切割的塑料薄膜通过热传导印到布料上的。Ashish Gupta设计师对亮片的喜爱人尽皆知,但是今天他用大量的珍珠带给我们更大的惊喜,设计师将这些珍珠优雅地点缀在服装里,而这些衣服带有某些对观众来说非常新鲜的元素。     

智慧的提问

黑龙前言:其实这篇文章的原作HowToAskQuestionsTheSmartWay,是一篇关于黑客如何在论坛上提问黑客技术问题的技巧指南,原作者是EricStevenRaymond,英文版原文地址在英文版原文地址在英文版原文地址在英文版原:http://www.catb.org/~esrions.htmlquestions.htmlquestions.htmlquestions.htmlquestions.htmlquestions.htmlquestions.html,,中文版翻译作者为D.H.GrandD.H.GrandD.H.GrandD.H.GrandD.H.GrandD.H.GrandD.GY/Ginux],,,,黑龙在读完这篇文章后,黑龙在读完这篇文章后,黑龙在读完这篇文章后,黑龙在读完这篇文章的智慧所折服,中蕴涵的智慧所折服,中蕴涵的智慧所折服,中蕴涵的智慧所折服,中蕴涵的智慧出当你在网上论坛上黑客的文化,你理解网络上黑客的文化,理解黑客是怎么样的一群人。     

Perspective:Societally connected multimedia across cultures

The advance of the Internet in the past decade has radically changed the way people communicate and col- laborate with each other. Physical distance is no more a barrier in online social networks, but cultural differences (at the individual, community, as well as societal levels) still govern human-human interactions and must be con- sidered and leveraged in the online world. The rapid de-ployment of high-speed Internet allows humans to interact using a rich set of multimedia data such as texts, pictures, and videos. This position paper proposes to define a new research area called ’connected multimedia’, which is the study of a collection of research issues of the super-area social media that receive little attention in the literature. By connected multimedia, we mean the study of the social and technical interactions among users, multimedia data, and devices across cultures and explicitly exploiting the cultural differences. We justify why it is necessary to bring attention to this new research area and what benefits of this new research area may bring to the broader scientific research community and the humanity.     

圆弧形沉积河谷场地在平面SV波入射下的动力响应

利用Fourier-Bessel级数展开法在频域内给出了圆弧形沉积河谷场地在平面SV波入射下动力响应的一个解析解,并分析了河谷宽度、河谷深度、入射波长和入射角度等因素对动力响应的影响。     

旧与新

如果你对方头方脑的皮鞋并不感兴趣,可是又想在某些场合透露出你的高雅和个性的话,不妨来看看这些,我们为您贴心地选出了这些旧式与新式的经典款式,无一不充满了怀旧风味且很容易彰显出你独特的个人魅力。     

洋服装下着

大部分玩鞋的人都说,挑选NB的鞋子,不外乎是M1400或是M576。不过,当时间回到90年代初的时候,是前两双鞋款还未面世的空白期,除M1300以外,M998一定是经典中的经典,源自80年代的M990、M998于92年面世即便成为NB90年代初的王者鞋款,今年首季度Super Team 33再度回归,即找来M998进行再次复刻,以“Suit”（西装）为灵感推出共3款洋服别注,将西服大衣的内衬、条纹衬衣、袖口、领口、领带物料融入鞋身创作,灰色是不错的首选。