We briefly review the development and the current situation of green building's ecological landscape design,discuss and analyze the significance of ecological landscape and the essential of design and the ecological equalize for the building.With the last green building in Shanghai as a case study,we explore some new methods and technology and the possibilities of application in construction of ecological landscape design in green building.

With the development of computer technology and network, the need for copyright protection and authentication is increasing day by day, and the information hiding technique is becoming more and more important. If we consider information hiding as communication process, neither the information sender nor the receiver is able to know all the characteristics of this communication channel due to the existence of channel error and malicious attacks. This has made the assumption of information hiding capacity more difficult and has delayed the development of information hiding. In the paper, a mathematical model for the calculation of information hiding capacity is proposed in the presence of channel error and malicious attacks. This model can avoid the effect of general attacks and errors soundly and provide a theoretic basis for information hiding. The lower and upper bound of the information hiding capacity are analyzed, and simulation results have proved this method is quite practical.

人体皮肤衰老分为自然老化和光老化2种形式,自然老化是由遗传因素所引起,光老化是由环境因素如紫外线引起,光老化能加速人体自然老化的进程.由于皮肤暴露于体外,老化表现最为明显,因而预防和延缓皮肤衰老成为医学研究的热点之一,相应的各种医学嫩肤手段也接踵而至.激光被用于皮肤磨削整形,取得了良好的效果,逐渐替代传统的治疗方法,成为一种很受欢迎的美容技术.

通过TDMoIP技术,传统电信业务能在IP网络上被透明的传输,但NAT打破了端到端的通信机制,导致TDMoIP在使用NAT的场合不能部署.本文描述了TDMoIP的原理,分析了NAT对TDMoIP应用的影响,并重点提出了TDMoIP的扩展方案,该方案解决了TDMoIP应用于NAT环境下所遇到的问题.

评估脉冲染料激光非损伤嫩肤后皮肤的组织学变化及真皮胶原蛋白含量的变化,初步探讨脉冲染料激光非损伤嫩肤的机理,为有效的临床治疗提供借鉴.实验采用590nm的脉冲染料激光.24只昆明小鼠随机分为4组,1组对照组,3组实验组.三种能量的激光各照射5次,间隔3天,光斑有10%的重叠.照射后进行常规的病理学切片,HE和VG染色,目镜测微尺测量真皮胶原纤维的厚度,SPSS进行数据分析.激光照射后短期内可以观察到轻微的炎症反应,长期观察发现小鼠皮肤表皮和真皮厚度明显增加,真皮胶原纤维排列整齐有序,成纤维细胞数量增加,没有观察到水疱和红斑等副反应.8 J/cm2、10 J/cm2和12 J/cm2组真皮胶原纤维的厚度分别比对照组高29%(p＜0.05)、35%(p＜0.05)和38%(p＜0.05),但它们之间没有统计学上的显著差异.证明595nm的脉冲染料激光非损伤嫩肤是一种安全有效的的嫩肤方法.

非损伤激光嫩肤技术作为一种很有前途的技术,它的优点是保护表皮不受损伤而刺激真皮胶原蛋白的再生,预防和治疗皮肤衰老,目前这种技术尚处于探索阶段.本文根据光源类型介绍了非损伤光嫩肤技术的最新进展,并探讨目前的研究热点和存在的难题,为进一步的研究提供参考.

To propose one publicly detectable watermarking plan using error correcting code. The algorithms for the watermark embedding and extracting are both open, and public key cryptosystem is utilized instead of common watermark key. Anyone can extract and verify the digital watermark embedded in the image, but no one can destroy or alternate the watermark, or retrieve the original image without the corresponding private key. Error correcting code is used to eliminate the negative effect of noise in watermark embedding/extracting and image encryption.

The basic technological elements and factors considered in designing lithium ion battery were summarized. The criteria for selecting key materials in designing lithium ion battery, such as positive electrode material, negative electrode material and electrolyte are discussed briefly as well.