基于几何运算的图像处理

本文描述了图像几何运算的基本理论，在此基础上，以Visual C 为编程工具，在windows 2000平台上进行了图像处理编程。实现了图像的缩放，图像的倒置，图像的旋转等操作。     

VB与C51之间浮点类型数据的传输和转换

针对VB与C51在通信时存在的类型转换问题，本文比较并分析了它们的数据类型与通信特点，提出了几种传输浮点类数据的方法，并给出了应用实例。     

双BGO晶体能谱测井

Ｃ／Ｏ测井可以利用ＢＧＯ晶体探测效率高的特点，在其探测器部分放置两个探测器，称为双探测Ｃ／Ｏ测井仪，长短源距两个探头所测谱数据进行补偿，有效地去除了井眼条件的影响，提高了测量精度和油水差值，更加有产地分油水层，并有望能在低孔隙度的地层中使用Ｃ／Ｏ测井仪器。     

Numerical integration of singular integrands using low-discrepancy sequences

We investigate quasi-Monte Carlo integration for functions on thes-dimensional unit cube having point singularities. Error bounds are proved and the theoretical results are verified by computations using Halton, Sobol’ and Niederreiter sequences. Supported by the Austrian Science Foundation (Project 10223-PHY).     

基于C／S的CAD协同设计环境的产品数据管理技术

数据管理系统是ＣＡＤ协同设计环境核心系统之一。此文介绍了基于Ｃｌｉｅｎｔ／ＳｅｒｖｅｒｒＣＡＤ协同设计环境的数据管理关键技术，看重介绍了数据的模型结构和组织，数据库设计，版本管理，配置管理，数据安全性及一致性控制等内容。最后对系统实际应用效果进行了评价。     

IC卡处理系统及其实现

本文介绍了ＩＣ卡处理系统的基本组成，详述了一种ＩＣ卡处理系统的软硬件实现方法，说明了Ｉ＾２Ｃ总线在系统中的应用。     

ABB SPAC 315C馈线终端综合保护器

介绍了SPAC 315C馈线终端综合保护器在馈线端为6kV/0．4kV变压器线路中的实际运用，并阐述其主要功能和特点。     

Q345C低合金高强度结构钢板的试制

介绍采用氧气顶吹转炉→吹氩喂丝→板坯连铸→控制轧制生产Q345C低合金高强度结构钢板的生产工艺。通过对化学成分的合理设计及制订适合该厂冶炼、连铸、轧制的工艺，采取微合金化和控轧控冷相结合的有效技术措施，提高钢板的综合性能，特别是低温冲击韧性。生产的Q345C钢板，其产品质量完全符合GB／T1591—94标准要求。     

Growth and optical properties of Er,Yb:YAl3(BO3)4 crystal

Single crystal of erbium, ytterbium-codoped yttrium aluminum tetraborate Er,Yb:YAl₃(BO₃)₄(Er,Yb:YAB) has been grown by the flux method. The absorption spectrum in the visible and NIR regions of Er,Yb:YAl₃(BO₃)₄ crystal are measured at room temperature and fluorescence spectrum of Er,Yb:YAl₃(BO₃)₄ crystal are also measured at room temperature, excited by 976 nm laser. Not only the strong NIR emission peaks located at 1548 nm was observed, but also the visible up-conversion luminescence has been found. The specific heat of the Er/Yb:YAB crystal at room temperature is 0.81 J/g °C.     

Synthesis and characterization of thorium phosphate phases by spray pyrolysis: chemistry of thorium phosphates

This paper describes the synthesis of some thorium phosphate compounds with different Th/P ratio (1/2, 2/3 and 3/4) by a spray pyrolysis technique. The so-prepared rough compounds were annealed at different temperatures for 2 h and then analyzed by mainly X-ray diffraction on powder and infrared spectroscopy. Every rough compound is composed by very badly crystallized ThO₂ phase polluted by carbon residue. An annealing treatment at 800 °C leads to the thorium diphosphate phase, α-ThP₂O₇ in every case. At 900 °C, such a phase is decomposed into a thorium phosphate diphosphate phase (Th₄(PO₄)₄P₂O₇, called TPD). However, a thorium excess in the initial mixture (Th/P = 3/4) leads also to observe the ThO₂ phase. The TPD phase is stable up to 1200 °C and does not react with the ThO₂ compound. Beyond 1200 °C, the TPD phase is slowly decomposed into a thorium phosphate compound which should be a thorium oxide phosphate; this compound does not contain any diphosphate species.