首钢2号高炉炉型管理实践

对首钢2号高炉炉型管理经验进行了总结,认为采取强化原燃料质量、筛分管理,优化高炉炉体冷却参数,合理分布炉内煤气流,完善炉前出铁管理,以及工长操作规范化标准化等措施,是2号高炉炉型合理、稳定的保障。     

插入式炉内摄象仪在济钢6号高炉的应用

插入式炉内摄象仪能连续获取炉内图象，是一种新型炉内实时监测装置。在高炉生产条件下，工长使用炉内摄象仪可在线观察炉内图象，及时了解斜面煤气流分布、炉内设备工作状况和炉况异常等信息，直观诊断炉况，有效地指导高炉操作。济钢6号高炉使用炉内摄象仪以来，改变了传统的间接推断和预报炉况模式，实现了高炉长期稳定高效运行，主要技术经济指标创历史最好水平。     

高炉操作的第三代技术

人,怎样掌握和操作高炉? 50年代初,我们这四个新中国第一代的高炉工长步入炉台时,主要是靠肉眼观察炉渣、铁水以及风口内的温度变化来判断炉况,其次则要靠仅有的几块仪表指示的数据来判断炉况。这时的高炉操作纯属技艺,炉况判断往往不准,经常出错,高炉像人一样(?)摆子似地忽冷忽热。     

2号高炉过程机系统的开发

2号高炉过程机系统开发项目是2号高炉大修项目之一。主要功能是将高炉生产的各种数据以数据库的形式保存下来，以报表或曲线的形式提供给工长，作为操作高炉的参考之一，以便工长能全面掌握高炉的炉况。使误操作能得到早发现、早处理和早解决。     

鞍钢高炉异常炉况专家系统及应用

简述鞍钢高炉异常炉况预报及异常炉况时铁水含硅量预报的专家系统的结构、特征值确定、规则集、推理及综合判断方法。该系统在４号、９号高炉在线运行效果较好，可供高炉工长操作参考。     

太钢二号高炉标准化作业制的生产实践

一、前言在工长直接操作高炉的现实情况下,发展起来的高炉标准化作业制已在太钢二号高炉上应用。该操作法是从有效的日常操作管理入手,结合本高炉的冶炼条件,制定出不同时期高炉进程所必需的操作规范(即标准),统一三班工长认识,去实现高炉连续冶炼的一致性,达到高炉顺行,稳产、高产低耗的操作目的。实践表明,该操作法对控制与调节炉况的一致,充分挖掘高炉生产潜力,已取得了明显的效果。     

300m^3高炉炉身局部结厚原因分析及处理

１９９５年１１月中旬，由于原燃料条件差及喷煤后操作原因导致了３高炉炉身局部结厚。经过上中下部调剂的洗炉处理使炉况很快恢复正常，同时高炉工长对喷煤后的高炉听任了有了初步认识。     

高炉料面红外摄像系统在攀钢的应用

高炉炉顶料面红外摄像系统是一种安装在高炉炉顶上的特种监控设备,对炉内生产情况进行实时连续监测,使高炉操作者更加直观的了解炉顶料面、煤气流分布情况,帮助高炉工长准确、及时的判断和调剂炉况,为高炉求得更高经济技术指标创造了有利条件。     

高炉操作的基本思路和方法

阐述了高炉操作的基本思路和方法,认为高炉生产的稳定顺行,除炉料和设备正常外,工长的日常操作非常重要,工长是高炉操作的核心人物。工长要深入理解高炉操作"语言",如高炉冶炼过程的风量、风压、风温、顶温、顶压、料线,以及各部位的温度、压力等主要参数;要重点认识和掌握送风制度、煤气流分布的调剂和控制方法,以及高炉失常现象如管道等的处理技巧。     

新钢8号高炉降低综合焦比生产实践

2016年,通过改进布料矩阵、改善热制度、坚持大矿批操作和提高工长操作水平,新钢8号高炉炉况得到了稳定顺行,煤气利用得到改善,高炉生产始终保持平稳状态,降低了燃料消耗,获得了良好的经济技术指标。     

Clinical image evaluation

The radiologist interpreting mammograms is responsible for an ongoing evaluation of the quality of the initial images produced by the facility. The Mammography Quality Standards act requires an external review of clinical images at least every 3 years from each facility accredited. Clinical image evaluation includes an assessment of position and compression, labeling, image quality, and artifacts. For each of these assessment categories, specific criteria have been identified for distinguishing properly performed from deficient clinical images.     

Time and image

A 23-year-old man presented with progressive exercise-related dyspnea and easy fatigability. He gave a history of a murmur of aortic insufficiency since childhood. Cardiac catheterization demonstrated severe aortic insufficiency. At surgery the patient was found to have prolapse of the right coronary cusp into a significant supracristal ventricular septal defect. Repair was carried out with a Dacron patch closure of the septal defect and replacement of the valve with a 29-mm St. Jude valve. The patient recovered uneventfully and is fully active and employed 5 years later. Review of the literature documents that this is an uncommon lesion. The approaches to preoperative diagnosis include transesophageal echo. The management techniques have included ventricular septal defect closure, alone and with valvuloplasty, and septal defect closure with aortic valve replacement. The anatomic and patient characteristics guide selection of the most suitable management of these patients.     

基于医学影像工作站的图像布局显示技术研究

由于医学设备及检查形式的多样性,使放射科医师与影像工作站的交互日趋复杂,因此设计一种能够自适应医生阅片习惯的软件是一个有待解决的难题.采用C/S架构,使用Visual C++2005,DCMTK,VTK和SQL Server2005开发工具,设计了一个基于DICOM标准的医学影像工作站.此工作站让用户可以根据自己需求,动态生成用户的布局信息并存入数据库,阅片时选择相应的布局信息进行图像布局显示.本工作站能够使专科医师根据其读片习惯和不同的读片要求采用相应的图像布局规则,保证其以方便、快捷的方式进行软读片.本影像工作站在很大程度上简化了医生的操作步骤,同时有利于医师挖掘医学诊断信息,提高医生的工作效率,因此本研究对诊断数字化有着重要意义.     

The mental image.

Although neglected by cognitive psychologists, mental imagery appears to have played a crucial role in far-reaching scientific developments. Without assuming anything about the internal processes underlying visual images, such images can be studied in relation to their corresponding external objects. The results from a series of previously conducted experiments indicate that mental imagery is remarkably able to substitute for actual perception. Ss made the same judgments about objects in their absence as in their presence; Ss who imagined a particular object were uniquely fast and accurate in discriminatively responding to related external test stimuli, and in the process of imagining a spatial transformation, Ss passed through states with a demonstrable one-to-one relation to corresponding states in the external world. Rules governing spatial structures and transformations, having been incorporated into our perceptual machinery by eons of evolution in a 3-dimensional world, are now at the service of creative thought. (61 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Surveying psychology's public image.

Psychologists have been interested in their public image since the organization of the American Psychological Association nearly 100 yrs ago. Yet formal surveys of the public's opinions about and understanding of psychology are more recent, dating from the 1940's. The published and unpublished surveys of psychology's public image to date are reviewed, and data from a recent telephone survey of 201 respondents (aged 18+ yrs) in 4 metropolitan areas are presented. Like earlier surveys, results of the present survey show that most people hold generally favorable attitudes toward psychology but are only marginally sophisticated in their understanding of the field. Specifically, the public is somewhat aware of both the scientific and clinical endeavors of psychologists. However, the public has virtually no understanding of the impact of psychology on their lives. These findings are compared with earlier findings. (47 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Spatially varying Bayesian image estimation

OBJECTIVES: New methods are available to immortalize parenchymal cells from exocrine glands and kidney with retention of differentiation. Adaptation of this technology to small, single-donor biopsy material or surgical specimens could provide genetically homogeneous cells for functional analyses and correlation with genetic background and underlying biochemistry. To develop a methodology useful for renal sodium metabolism, epithelial cell line generation was tested in a hypertensive rat model with features similar to salt-sensitive hypertension in humans. This form of hypertension has a large genetic component and is prevalent in African Americans. DESIGN: Protocols were designed to immortalize primary cultures of microdissected proximal tubule epithelial cells from spontaneously hypertensive (SHR) and control, normotensive Wistar-Kyoto (WKY) rats. Immortalization was based on a replication-defective retrovirus coding for SV40 large T-antigen as positive cell cycle regulator. Transport competent cells that grow on porous filters to form confluent monolayers were selected. RESULTS: Several proximal tubule cell lines have been developed from SHR and WKY rats. The cells retain important differentiated features, such as epithelial polarity, low monolayer conductance, and sodium-succinate cotransport. They are suitable for analyses of electrolyte transport by electrophysiology or imaging of intracellular fluorescent indicator dyes, such as sodium-binding benzofuran isophthalate. CONCLUSION: Feasibility of generating epithelial cell lines from defined renal segments was demonstrated. The cells retain important transport function so that analyses of sodium metabolism and the influence of genetic background on it are possible. The methodology is applicable to human specimens.     

Physiological investigations by image analysis

Cataract formation in diabetic lenses has been attributed to polyol-osmotic pressure-generated influx of water. The ensuing swelling in the form of pocket and lake accumulations cause light scattering. The authors tested whether clear lenses of diabetic patients show different hydration properties than age matched normal lenses. Normal and diabetic human lenses were investigated for their nonfreezable water content by differential scanning calorimetry. The total water content of the lens sections were studied by thermogravimetric analysis. Non-cataractous diabetic lenses in all three regions showed a higher total water content than normal lenses. The nonfreezable water content, seems to increase with age in diabetic lenses and decrease with age in normal human lenses. Thus, hydration changes in human diabetic lenses precede cataract formation. While syneresis, the release of bound water into the bulk, is part of the normal aging process, it appears to occur in the younger diabetics only. In older diabetics syneresis is halted or even reversed. This may be due to the glycation of lens proteins in diabetic patients which tends to immobilize water and therefore, reverse the syneresis due to aging.