烧结料层厚度检测仪在生产中的应用

攀钢炼铁厂研制开发的烧结料层厚度监测仪在生产中应用后，促进了该厂烧结生产操作的稳定与进步，取得了产质量提高的良好效果。     

基于双目立体视觉技术的烧结料层厚度检测系统

针对攀枝花钢钒有限公司炼铁厂烧结料层厚度检测中存在的系统维护和检测精度受环境影响较大的问题,开发了基于双目立体视觉技术的烧结料层厚度检测系统。利用双摄像机捕捉并识别激光源射出光线在料面上形成的光斑,根据光斑位置差异计算料层厚度,最终实现烧结料层厚度的非接触在线检测。     

包钢厚料层烧结十年总结回顾与展望

本文通过对烧结厂采用原料层工艺技术，生产十年的总结提出了存在的问题和解决途径，对烧结生产实际仍有一定参考意义。     

料层厚度对钒钛烧结矿性质的影响探析

通过对攀钢烧结生产数据进行统计分析,找出了料层厚度与钒钛烧结矿的强度、FeO量和烧结生产的负压、点火煤气消耗、固体燃耗、成品率等的关系.     

料层厚度对钡钛烧结矿性质的影响探析

通过对攀钢烧结生产数据进行统计分析,找出了料层厚度与钡钛烧结矿的强度、ＦｅＯ量和烧结生产的负压、点火煤气消耗、固体燃耗、成品率等的关系     

厚料层烧结生产实践

对中国新兴铸管股份公司烧结分厂现有的生产条件和工艺条件进行分析和总结,提出了为了实现厚料低碳低温烧结工艺应采取的措施,并对１９９９年５、６月份分厂推行厚料层烧结生产试验情况进行了总结。     

浅谈厚料层烧结及其措施

本文简介了国内外厚料层烧结的发展状况，分析了厚料层烧结的机理。并结合首钢生产实际论证其对烧结矿质量、产品及工序能耗的影响，提出了厚料层烧结工艺中改善料层透气性的措施。     

610mm厚料层烧结的生产技术

结合年修,一号机进行了技术改造,烧结机台车栏板高度由500mm提高为620mm。在1990年1月实现了610mm厚料层烧结,料层提高后,烧结矿质量明显改善,折算工序能耗也有所降低。     

厚料层烧结试生产实践

为降低高炉焦比,必须改善入炉烧结矿的质量,本文在对分厂现有的工艺条件进行了分析、总结的基础上,提出了实现厚料低碳低熳烧结工艺所应采取的措施,并对１９９９年５、６月分厂推行厚料层烧结生产的试验情况进行了总结。     

Measurement of nonuniform sintering shrinkage of functionally gradient material by digital image processing

A noncontact measuring system using a digital image analysis has been devised for the two-dimensional deformation of a powder compact during sintering, which is applicable to nonuniform shrinkages of graded compacts as well as complex-shape compacts prepared by metal injection molding. This article roughly introduces the system and describes an example of the measurement of two-dimensional sintering shrinkage of a metal/ceramic multilayer compact of the material combination of stainless steel (SUS304) and partially stabilized zirconia (PSZ). The measurement involves the edge enhancement of input images, the reading of the intensities of each pixel (picture element), and the determinations of the outline of a specimen and the distribution of diameter changes. It has been confirmed that thermal expansion and nonuniform deformation during sintering can be measured two dimensionally. In comparison with measurement by a conventional dilatometry, this method has enough accuracy for measuring sintering shrinkage in the temperature range from room temperature to 1573 K.     

基于数字图像处理的带钢缺陷检测和度量

针对带钢表面麻点和裂纹缺陷,设计了一种缺陷检测和度量方法。首先对样本图像进行滤波、二值化、细化及去毛刺操作,在得到的二值图上进行麻点缺陷检测,骨架图上进行裂纹缺陷检测。最后,在缺陷区域进行统计分析,得到样本图像的麻点缺陷数量和面积,裂纹缺陷的数量、长度和方向等指标。测试结果表明,该方法可有效实现带钢缺陷的检测和度量。     

Distance learning in mammographic digital image processing

The potential of interactive multimedia and Internet technologies is investigated with respect to the implementation of a distance learning system in medical imaging. The system is built according to a client-server architecture, based on the Internet infrastructure, composed of server nodes conceptually modelled as World Wide Web (WWW) sites. Sites are implemented by integration and customization of available components. The system evolves around network-delivered interactive multimedia courses and network-based tutoring, which constitute its main learning features. This potential has been demonstrated by means of an implemented system, validated with digital image processing content, specifically image enhancement. Image enhancement methods are theoretically described and applied on mammograms. Emphasis is given in the interactive presentation of the effects of algorithm parameters on images. The system end-user access depends on available bandwidth, so high speed access can be achieved via LAN or local ISDN connections.     

Analysis of bone loss with aging and menopause--using digital image processing

To study bone loss relationships to aging and menopause, cross-sectional bone mass measurements by digital image processing (DIP method), and menopause information collected by questionnaire, were analyzed on 291 women who live in Tsukude village. The results are as follows. 1) The mean DIP values (sigma GS/D, MCI) by age-stratified groups decrease with age after menopause. The rate of bone loss in sigma GS/D is almost constant, but in MCI it increases with aging. 2) In 30-year old and 40-year old age groups, the frequency distribution of DIP values is symmetrical and bell-shaped. But after the fifties the distribution is asymmetrical, with the mode of distribution deviated toward low bone mass. The change of mode with aging is larger than that of mean. This fact suggests that change of mean bone mass substantially underestimates actual bone loss from aging. 3) The change of the mean DIP values stratified by years elapsed since menopause is not especially large at start of menopause but becomes almost constant after menopause. DIP values reflect the bone loss from the aging rather than from menopause, and are beneficial to the study of bone loss in elderly women.     

烧结烟气分段式综合处理新工艺的设计

依据烧结烟气中SO2和NOx浓度分布特点的研究结论,结合现有热风烧结的研究实践,设计了一种烧结烟气分段式综合处理新工艺。该工艺按烧结烟气中的各污染物分布特点将烧结过程分为4个部分,有选择性地将烧结烟气以不同手段进行分段处理,从而实现将烧结烟气脱硫、脱硝分段治理工艺与热风烧结生产工艺有机结合的烧结烟气环保减排综合处理。与传统工艺相比,本工艺预计可使烧结脱硫脱硝烟气处理量减少40%~60%,而污染物浓度提高50%左右,同时烟气脱硫、脱硝设施的设备投资和生产成本分别减少40%左右。     

The teaching of computer programming and digital image processing in radiography

The increased use of digital processing techniques in Medical Radiations imaging modalities, along with the rapid advance in information technology has resulted in a significant change in the delivery of radiographic teaching programs. This paper details a methodology used to concurrently educate radiographers in both computer programming and image processing. The students learn to program in visual basic applications (VBA), and the programming skills are contextualised by requiring the students to write a digital subtraction angiography (DSA) package. Program code generation and image presentation interface is undertaken by the spreadsheet Microsoft Excel. The user-friendly nature of this common interface enables all students to readily begin program creation. The teaching of programming and image processing skills by this method may be readily generalised to other vocational fields where digital image manipulation is a professional requirement.     

图像处理技术在耐火制品热震性检测中的应用

抗热震性能是表征耐火材料抵抗温度急剧变化而不破坏能力的1个实用参数.利用数字图像处理技术对耐火浇注料预制件在热震实验过程中产生的裂纹密度进行评定,结果表明: 与传统方法相比,数字图像技术能更好、更准确地确定耐火材料的热震性能,提高工作效率.     

图像处理技术在梅钢连铸板坯测长系统中的应用

介绍图像处理技术在上海梅山钢铁股份有限公司1号连铸机板坯测长系统中的应用情况。系统对摄像机产生的图像进行技术处理,去除干扰信息,提高图像采集精度,准确识别和跟踪板坯头部位置,计算板坯长度,控制切割机进行板坯切割。该系统投入使用以来,运行稳定,板坯切割精度显著提高,同时由于其非接触检测的特点,使得维护成本大为降低。     

Diurnal and weekly variation of tardive dyskinesia measured by digital image processing

The causes and clinical manifestations of Clostridium difficile infection in children are described in this report. The studies were performed on three children aged up to 3 years. Risk factors as well as possible diagnostic and therapeutic procedures are discussed.