基于示例学习的特征空间变换方法

特征空间是人工智能领域中经常用的基本概念之一，人工智能领域中的许多问题可以可以通过特征空间变换的方法化简和求解。文中提出了一种基于示例学习的特征空间变换方法。     

多尺度边缘检测技术的分类及比较

本文综述了多尺度边缘检测技术：介绍了基本概念及有关理论；归纳了现有的各种多尺度边缘检测方法；     

基于机器学习的彩色匹配技术

在不同的设备间保持色彩的一致性是当前彩色印刷的一项重要的世界性技术难题.从机器学习的角度,提出了基于学习的色彩空间变换方法,并利用科学发现的基本思想,较为成功地解决了彩色喷墨打印机中的彩色匹配的自动化和通用性问题,取得了理想的匹配效果.该技术目前已与日本佳能泰克公司进一步合作、开发,实现商品化.     

飞行时间质谱峰形分析

从离子运动方程出发，用峰形分析方法离子的质谱峰进行数据再处理，首次从飞行时间质谱峰峰形中获得离子产生时的空间分布信息。这种峰形分析方法可以广泛应用于分析飞行时间质谱的各种离子源中离子的分布。     

基于图象空间分布的Shading算法

本文首先介绍了基于局部光照模型的串行Shading算法，然后对设计分布式Shading算法所用到的动态任务分配、数据适应性任务分配、任务粒度等因素作了较为详细的论述，并给出了所设计的新的数据适应性任务划分算法，最后给出了所设计的分布式Shading算法的描述和实验结果.     

Application of design parameters space search for belt conveyor design

Belt conveyor design is examined as an application of a proposed Design Parameters Space Search technique. First, the main characteristics of the belt-conveyor design process are presented as they appear in the current literature. Furthermore, a proposed general knowledge-representation platform is described, and its ability to house the relevant conveyor design knowledge is also shown.

Next, the extended search technique of the design space is discussed, and an integrated example of a belt-conveyor design is presented, based on the proposed representation platform and the extended search technique. Finally, it is shown that the design of belt conveyors according to the proposed approach presents the following significant advantages:

• • Due to the knowledge-representation scheme adopted, both qualitative and quantitative knowledge can be used within the same platform.

• • Multiple solutions can be easily produced through user-defined design criteria. These solutions can be further modified and/or evaluated to produce more-specific designs.

• • The required for user-input data is kept to a minimum. Due to the applied extended search method, semiautomatic design can be achieved. As a consequence, the design process is completed in less time than that required by the conventional methods.

     

Electrical Conductivity of Composite Solid Electrolytes Copper(I) Bromide-Titanium Dioxide

Electrical properties of two-phase mixtures of copper(I) bromidewith titanium dioxide are investigated by impedance spectroscopy coupledwith X-ray diffraction and scanning electron microscopy. An increase ofconductivity of more than an order of magnitude with respect to purecopper(I) bromide is detected in the extrinsic domain. The results can beinterpreted in the framework of the brick-layer space charge model. Theimportance of OH groups on the surface of titania particles as preferredsites for internal adsorption of copper ions is confirmed. A maximum effecton conductivity is revealed for about 15 mol% of second phase andrelated to the microstructure of the composites.     

博士后简介

博士后简介陈树强陈树强男，１９６０年出生于福建省福州市．１９８２年毕业于厦门大学物理系，获理学学士学位；１９８２～１９８４年在化工部晨光化工研究院从事塑料测试技术研究；１９８７年在西北工业大学获工学硕士学位；１９８７～１９８９年在南昌航空工业学院任教...     

与Tychonov不动点定理相关的几个结果

给出了两个拓扑向量空间的乘积空间上截口定理,极小极大不等式及一个推广的不动点定理.指出这3个形式不同的结果与Tychonov不动点定理是相互蕴含的.并且用截口定理直接证明了多值映射的一个重合定理.     

冲击减振器基本参数的确定

本文在讨论单自由度系统强迫振动中冲击减振器的基础上，导出确定冲击减振器质量比和冲击间隙的计算公式，并得出结论：冲击块质量越大，减振效果未必越好；最佳碰撞位置不在主振体平衡位置，且相邻两次碰撞时主振体的位置也不重合