基于数学形态学的栅格地图处理技术

用数学形态学相关理论方法实现了对于扫描图像中不同线宽的同一线型，提取到同一线宽的二值线状要素图。在对此目标图像进行细化时，采用了基于双结构单元模板的细化算法；对于细化后的骨架线，采用了基于Freeman链码的动态改变步长的跟踪矢量化方法。     

漏水探测仪的设计及实现

文中论述了地下供水管道探测仪的设计思想、电路组成、软件设计 .介绍了可编程通用有源滤波器 MAX2 6 0、液晶显示模块 TMDMG1 2 86 4的功能以及在该系统中的应用     

香薷属花粉形态浅析

有关唇形科香薷属(Elsholtzia)植物花粉形态的研究报告较少,本人利用光学显微镜和扫描电子显微镜对香薷属四种植物的花粉形态进行了观察,分析。结果表明:该属植物在系统演化过程中曾经有一个风媒传粉阶段。     

Characterization of composite particles responsive to electric and magnetic fields

The multilayer particles with responses to electric and magnetic fields are a prerequisite for particles assembled under external fields. Three routes to produce particles responsive to electric and magnetic fields are presented in this article. The size and morphology, properties as well as the electric-magnetic responses of three kinds of particles are comparatively discussed. This will provide a useful basis for the control of the behavior of the particles in suspensions by external electric and magnetic fields.     

STUDIES ON THE COMPATIBILITY OF PPO MULTI-COMPONENT BLENDS

The compatibility and phase morphology of poly (phenylcne oxide) (PPO) multi-componenet blends with poly (ethylene terephthalate) (PET) and polystyrene (PS) were studied using differentialscanning calorimetry (DSC), dynamic mechanical analysis (DMA) and scanning electron microsopy (SEM) methods. The effect of glycidyl methacrylate-styrene copolymer (GMS), as a compatibilizer, on the morphology of the PPO blends has also been studied in detail. The influence of the moiecular weight of PET and the synergetic effect of the compatibilizers of GMS and phenoxy on the morphology were examined. The DSC and DMA results show that there are two distinct glass transitions correspondinig to PET and PPO existed, however, the Tg of PPO shifts toward lower temperature region due to the addition of GMS and PS. The SEM results reveal that PET component is as dispersed phases in the PPO matrix, part of which is located at the interfaces due to the interaction with GMS while PS is miscible in the PPO matrix. A significant     

超声淬火有效频率的物理本质

本文根据超声波场—声子耦合的超声热处理能量作用机制,研究超声淬火有效频率的物理本质,寻求有效频率计算方法.有效频率和超场波场—声子耦合条件有关,可根据固体物理,量子声学和固态相交理论予以估算.35、45和T10钢的计算结果和实验结果相吻合.     

退火对阳极氧化铝模板特性的影响

利用阳极氧化法以草酸为电解液制得高度有序的阳极氧化铝(AAO)模板,本文研究了退火温度对AAO模板的表面形貌、结构、吸收光谱的影响.发现1 100℃的退火使AAO模板的形貌发生了改变;退火温度到达1 250℃时,模板表面完全熔融并出现龟裂.800℃和1 100℃分别是AAO模板由非晶态向γ-Al2O3和α—Al2O3转...     

古英语向中古英语演变的形态类型学视角

本文从形态类型学视角探讨了国内语言学界少有研究的英语形态历时演变。在简要地介绍了语言类型学、形态理论及语言演变的关系之后,文章分析了从古英语到中古英语的词形变化,并说明了英语演变的原因。形态研究是语言类型学的重要内容,语言类型的演变一般体现在形态、语序和虚词三个语法变量的历时变化上。本文旨在说明古英语向中古英语的演变即屈折语向孤立语的转化过程。     

基于单片机的通用充电器的设计

为了解决当前镍镉电池、镍氢电池、锂电池的充电问题,需要对充电过程进行更精确的监控,以缩短充电时间、达到最大的电池容量,并防止电池损坏。设计了一种以单片机为核心的通用充电器,介绍了充电器的工作原理、LCD液晶显示原理,并讨论了系统的硬件构成及软件设计方法。     

一种基于数学形态学的签名真伪鉴别方法

针对离线签名鉴别可利用的信息少、鉴别难度大的问题,提出了一种基于数学形态学的签名真伪鉴别方法.该方法首先对采集的签名图像进行灰度化、二值化、滤波去噪、取反归一化等预处理,然后利用数学形态学的各种运算,结合不同大小和不同方向的结构元素提取签名中具有明显方向性特征的笔划,最后基于笔划的长短、粗细、间隔等信息对鉴别样本做出判...