棒材在线计数系统的研究与应用

通过视觉传感器从无遮拦的端部获取棒材数字图像,在计算机中采用灵活的图像处理技术,分析并提取棒材截面的特征进行检测、计数,具有速度快、精度高、适应性强等特点。因此,近年来基于机器视觉的自动检测技术得到了广泛的重视和应用。     

光电技术与机器视觉在钢铁工业中的新应用

近年来迅速发展的半导体技术和计算机技术的应用，已逐渐广泛地渗透到传统产业的许多方面，特别是运用这些原理在那些高温，高速的作业环境中进行的非接触自动测量已经取得了很大的进展。本文分析和介绍了国内外光电技术和计算机视觉技术在钢铁工业中的１５种新的应用。     

基于计算机视觉技术的铝合金加工监测方法研究

计算机视觉技术不断发展,视觉测量与监测成为近年来工业生产中信息技术研究新的发展方向与趋势。快速、高效、实用的监测为工业生产加工和精准测量提供了有力的技术保障。对推动工业化生产生产遥感监测与测量技术有重要的学术价值和深远的社会意义。视觉技术应用在铝合金微切削精密加工监测和高温锻件尺寸测量中作为重要的技术手段。研究中通过数码相机或CCD数字摄像头,对铝合金材料加工进行实时监测,运用数字图像分割法提取试件加工过程中的图像参数值,运用图像对比度选取不同滤光片控制图像质量。建立数字模型,将系统参数标定方法采用滤波降噪、像素标定、图像锐化等方法进行预处理,通过数字模型求得试件的三维尺寸。计算机视觉技术将图像处理与分割技术、物联网与WEB远程控制技术、信息传输与数据库管理技术融合到统一的平台,形成了工业生产智能化监测体系。     

激光焊接过程监测及焊缝质量检测技术研究现状

阐述了在激光焊接过程中通过监控等离子体等光电信号、熔池和小孔状态来分析评估激光焊接质量、通过无损检测手段分析焊后焊缝内部应力集中和气孔等缺陷、通过计算机视觉技术在线检测焊缝表面缺陷三种检测焊接质量的检测原理及发展。介绍了几种已应用于激光焊接生产线的较为先进的计算机视觉检测焊缝质量的产品。分析了视觉检测技术应用于焊缝在线检测中存在问题及发展趋势。     

机器视觉技术在钢筋生产线自动点支计数中的应用

根据钢筋生产现场实际情况,利用机器视觉技术中计算机模拟人的视觉功能,实现了钢筋在线连续自动点支计数,消除了人为因素带来的计数误差。     

带卷塔形度测量中视觉技术的开发与应用

通过基于光学三角测量原理的视觉传感技术将数字化的图像送到计算机中,用机器视觉( Machine Vision)又称计算机视觉(Computer Vision)的方法来进行分析、计算、统计,实现对各种带卷塔形度进行三维精确测量,从而在带卷加工的过程和成品质量控制中发挥积极作用.     

基于LabVIEW的钢卷号码识别方法

机器视觉是用计算机来模拟人的视觉功能的一门科学技术。应用软件LabVIEW自行编写识别软件进行机器视觉的开发,将其应用在钢卷产品传输作业线上,建立钢卷号码自动识别系统。从硬件和软件两个方面介绍了该系统实现的方法,详细介绍了在图像预处理、图像分割和图像识别过程中应用的方法。     

计算机无线网络技术在矿区地质勘探设备中的应用

计算机无线网络技术在近几年得到飞速的发展,已经在很多领域得到广泛的应用,在对矿产资源的勘探中,计算机无线网络技术发挥了巨大的促进作用。计算机无线网络技术的应用对于勘探行业是革命性的推动。针对上述情况,本文以计算机无线网络技术在矿区地质勘探设备中的应用为题目进行了深入的研究,首先对矿山勘探中计算机无线网络技术的应用以及计算机无线网络技术在勘探的辅助应用进行详细的说明,然后对计算机矿区云计算和矿区的高性能计算进行了阐述,最后对计算机无线局域网在矿区勘探的作用进行了研究。     

机器视觉技术在铜板带表面检验中的应用

介绍了机器视觉技术在铜板带表面质量监控中的原理和应用现状,并对该技术的应用提出了具体构想。     

图像文件与图形文件

计算机以本质上不同的两种方法数据视觉应用数据,产生了相应的图像和图形两种文件格式,典型的处理软件是Photoshop和Core1DRAW.     

The effect of amount of possession of the trait of hostility on accuracy of perception of hostility in others.

Some theories of personality hold that an individual's perception of others is influenced by his own personality characteristics; more specifically, that a trait of low social value will be projected more into others, and that insight into the possession of these characteristics reduces this distortion. These 2 hypotheses were tested by having a group of college students rate each other (including themselves) on degree of friendliness or hostility. Agreement with group rating about self yielded the insight score. In general, the hypotheses were supported; the "friendly" Ss were most accurate in their perception of others, and insight was positively associated with accurate perception. From Psyc Abstracts 36:04:4HL16M. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Comparison of rates of infection of two methods of emergency ventricular drainage

The rates of infection of two methods of external ventricular drainage in use at Atkinson Morley's Hospital--namely, (a) percutaneous drainage with Rickham reservoirs and (b) tunnelled ventriculostomies--were compared in this retrospective review. Percutaneous drainage of CSF with Rickham reservoirs was associated with a 27% rate of infection as identified by positive microbiological cultures; tunnelled ventriculostomy catheters had a 10% infection rate. The difference in the infection rate between the two methods was statistically significant (P < 0.015). Other variables examined, including the age and sex of the patients and the reasons for ventricular drainage, were not associated with an increased rate of infection. Most infections from either method were caused by a coagulase negative staphylococcus. The average duration of ventricular drainage before identification of positive cultures was 5.7 days for Rickham reservoirs and 6.0 days for ventriculostomies.     

浅析《野草》的版画特征

鲁迅先生一生热爱美术作品,对版画中木刻兴趣尤甚.<野草>作为其"写心之作",亦呈现出一些与木刻版画一致的审美特征:一是具有木刻版画的色彩特征,多对比、多冷色,有阴郁的美感;二是具有木刻版画的力度特征,环境描写、人物刻画处处刀锋毕现,遒劲有力,有一种"力之美".     

四辊破碎机车刀架的改造

针对四辊破碎机车刀架车削中存在的几个问题,详细介绍了电动车刀架的结构和工作原理,建立主要设计参数的数学表达式,并进行适当的分析。改造后,这种电动车刀架运行平稳、可靠、方便、省力,取得了预期的效果。     

转炉炉壳热应力分析

根据实际转炉建立实体模型。以有限元为手段,考虑了炉衬和炉壳材料的物性参数随温度变化的特点和炉衬与炉壳之间膨胀间隙,计算了转炉炉壳在温度载荷和炉衬膨胀压力同时作用下的热应力。所得结果可为转炉炉壳设计提供依据。     

Comparison of the results of surgical and conservative treatment of fractures of the diaphysis of the tibia

In this paper is treated the fundamental problematic of the fracture of the diaphysis of the tibia and the therapeutic results after the conservative and operative treatment are confronted. Among 518 patients with 433 open fractures and 35 with closed fractures of the diaphysis of the tibia, successful treatment of more 2/3 was obtained in the period from 1968 to 1972. Following our casuistics and literature, whose results are similar, we find out that the average total treatment of the osteosynthesis of the fracture of the diaphysis was shortened for 2,5 months depending upon the type and the localisation of the fracture. Apolied methods of the operative and conservative and conservative treatment in relation to the velocity of the medical cure as well as to the extreme anatomical-functional results are analised. We noticed that osteosynthesis, made by the intermedullary nail and the extension of the canals or by a small AO table, by the achieved stability makes conditions of immediate motions and an early rehabilitation. Because of that it gives the best functional results.     

焦炭热性能指标意义浅析

通过对焦炭在高炉内的历程及其变化规律的剖析,阐述焦炭热性能指标的意义,形象地把焦炭在高炉内的损耗分为三部分(M1,M2,M3)。指出M2对焦比及焦炭价格有一定的指导作用。     

Results of treatment of cancer of the cardia

Cancer of the cardia is traditionally discussed with cardiac cancer of the lower portion of the esophagus and upper gastric cancer invading the esophagus, and the specific characteristics of cancer of the cardia have never been clearly defined. We reviewed the outcome of 172 patients with adenocarcinoma of the cardia who had undergone radical surgery between 1949 and 1994 in the Division of Gastrointestinal Surgery of the Cancer Institute Hospital. The centers of the tumors were located within 2 cm above and below the boundary between the esophagus and the stomach, and their longitudinal diameter was less than 8 cm. We divided the patients into an early period (1949-1979; n = 79) and a late period (1980-1994; n = 93), and focused on the historical transition. There were no differences in patient gender or histology between the two periods. However, the late period was associated with fewer cases of esophageal invasion and shorter longitudinal diameter, as the age of the population advanced. The number of advanced cancers such as the localized and infiltrative type had decreased, and early cancer and early clinical stage had become more common, but despite the fact that the number of early cancers had increased, extended dissection, such as thoracic and paraaortic lymph node dissection, was performed more frequently. By clinical stage, the long-term outcome markedly improved in Stage I patient in the late period, and tended to improve in Stage II and III patients. This appears to have been attributable to the prevention of micrometastasis by extended dissection, although the number of early cancers is another major potential cause. There were no differences in the outcome of Stage IV patients between the two periods, and further advances in multimodality therapy must be awaited. The range of resection is basically proximal gastrectomy, and if there are adequate indications, the prognosis is favorable. In view of the status of lymphatic flow and lymph node metastasis, and long-term results, lateroaortic lymph node dissection is important. Since the number of early cancer patients has been increasing, if intraabdominal recurrence is prevented, intrathoracic lymph node dissection will contribute greatly to the outcome of such patients.     

参与式农业基地建设行动方案设计

为了编制实用性强的基地建设行动方案,首先,确定参与式发展的主体,搭建一个"决策框架";其次,针对行动目标,提出不同参与主体,如管理者、农民、消费者等团队与个人的目标及行动内容;最后,工作应向重塑伙伴式合作关系,挖掘农民自我发展潜力,完成三大角色的转换,打造农业基地文化等方向推进.