高频区雷达目标识别模板构造方法研究

提出了将最大最小相关模板应用于高频区雷达目标模板构造的思想，这种方法的操作对象为多个距离像，即将一定姿态范围内的距离像用一个组合模板来表示，从而使得数据库中目标模板数量减少。最大最小模板具有与其所代表的距离像之间的最小相关最大的特点。     

A new method for preparation of template DNA for PCR from special plant materials

A simple method for preparation of template DNA suitable for PCR amplification from herbarium sampies and plant tissues rich in byproducts, e.g. polysaccharides, tannins, polyphenolic, and terpenoids compounds, is described. The total DNA from regular extraction procedure is absorbed by a small amount of glass powder and the final precipitation of glass powder is used directly as a template for PCR. Taking six plant taxa, including the herbarium specimens of Lythraceae collected from Namibia in 1957 and the silicon-dried leaf tissue from mangrove plants (Rhizophoraceae and Combretaceae) rich in by-products as exampies, the PCR products, including nrDNA ITS regions and cpDNA rbcL gene, amplified following the regular and new methods respectively are compared. Our method provides a simple, rapid and economic approach to purify and prepare template DNA for PCR from special plant materials.``     

基于模板的可视化场景编辑器

将虚拟现实技术应用于科技展示领域,可以使科技展品具有更好的沉浸感、交互性、趣味性和教育性。由于虚拟现实类科技展品的需求量日益增加,且虚拟场景的变异性较大,因此为了提高生成场景工作的效率、降低编写生成场景代码的难度,基于面向科技展示的虚拟现实仿真平台AndShow_VRToolKit,将模板思想融入到场景组织模式——场景树,设计并实现了生成场景的集成开发环境——场景编辑器。在其中对声音、实体、灯光等节点模板进行组合、配置和管理,然后生成包含场景信息的场景描述模板文件,系统通过读取模板文件并再现最终的虚拟场景。实践证明了基于模板的可视化场景编辑器的应用价值。     

基于JSP网页自动生成工具的设计与实现

Web开发技术是Internet应用的一个重要方面,而JSP又是Web开发的最先进的技术,是当前Web开发人员的首选技术。本文讨论基于模板和标签库的JSP网页自动生成工具的设计和实现,并提出具体的设计思想和实现方法。     

模板法合成Ag纳米线阵列

以多孔阳极氧化铝为模板,用乙二醇作还原剂,将Ag 在模板的纳米孔道内还原并进行限域生长,制得了Ag纳米线.用X-射线衍射光谱(XRD)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)等检测手段对产物进行了表征,结果表明所得Ag纳米线具有面心立方晶体结构,纳米线阵列排列整齐,长度可达10μm,单体纳米线的直径约为60 nm,与所用模板的孔径相当.     

Groundwork for True XML-based Security Pattern Languages

A pattern is used to describe best practices and principles. Patterns have been used successfully in architecture and in software design. We propose to apply the pattern method to XML-based security engineering. Organized collections of interrelated patterns (called pattern languages) can embody whole bodies of knowledge on specific topics. We will discuss patterns and security pattern, pattern languages and the requirements of the pattern languages proposing its essential requirement (the template), and lays the groundwork for our future development of a true XML-based security pattern language.     

Defomable surface modeling based on dual subdivision

Based on dual Doo-Sabin subdivision and the corresponding parameterization, a modeling technique of deformable surfaces is presented in this paper. In the proposed model, all the dynamic parameters are computed in a unified way for both non-defective and defective subdivision matrices, and central differences are used to discretize the Lagrangian dynamics equation instead of backward differences. Moreover, a local scheme is developed to solve the dynamics equation approximately, thus the order of the linear equation is reduced greatly. Therefore, the proposed model is more efficient and faster than the existing dynamic models. It can be used for deformable surface design, interactive surface editing, medical imaging and simulation.     

基于空间分布特征的手写体数字识别

首先根据手写体数字在空间上的分布情况，提取其空间分布特征，同时定义了一种新的特征；其次，提出了一种新的细化方法，并用最小距离法对手写体数字进行了识别。该识别方法较传统方法简便，不必考虑笔划的多变性，具有较高的识别正确率，并能实现快速识别。     

微波辐射下交联壳聚糖树脂的制备及其吸附性能

在稀醋酸溶液中，微波辐射下壳聚糖与Zn^2 反应制备了壳聚糖Zn^2 配合物，然后将制得的配合物与环氧氯丙烷在微波辐射下进行交联反应后，用稀酸除去Zn^2 ，合成了具有Zn^2 离子孔穴的交联壳聚糖树脂。实验考察了该树脂对一些金属离子的吸附性能，并对影响树脂吸附性能的因素进行了研究。     

一种结构光条纹中心快速检测方法

为解决三维扫描仪中图像处理的实时性，提出检测结构结构光条纹 法，本算法把阈值法与可变方向模板法相结合，充分发挥两者的优点，先由主机计算激光条纹度阈值，再结合像素的灰度邻域属性实时确定激光条纹，然后用可变方向模板激光条纹中心，实验表明这种方法具有数据存在量小，实现速度快的特点，而且还有抗白噪声能力和一定的修补断线能力，此外，本方法有利于硬并行实现。