应用神经网络进行亲水涂层的性能预报与工艺参数优化

建立了亲水铝箔涂层的性能预报神经网络模型，对工厂条件许可的工艺参数组合情况进行了计算，从中得到了若干能大大提高亲水涂层质量的工艺参数组合。实验结果验证了模型的可靠性，从而为亲水涂层的性能预报与工艺参数优化提供了一条先进、合理的途径。     

提高HG70调质板强度合格率的工艺优化

运用数理统计的方法，对影响高强度调质板(HG70)的因素进行了定量相关分析，建立性能预报模型，并通过模拟试验，优化了调质工艺参数，使调质板性能合格率大幅度提高。     

基于组织 性能预测的集装箱热轧板工艺优化

 针对产品的性能要求制定合理的热轧工艺,提出将组织性能预测与控制技术应用于热轧工艺的优化设计。基于大量生产数据,建立了包含10个BP神经网络的模型组以描述化学成分、工艺和力学性能的对应关系,屈服强度、抗拉强度和伸长率的预测精度分别达到了±6%、±6%和±4%。结合多目标粒子群优化算法,针对客户对性能的需求,在化学成分和工艺约束已知的条件下,对热轧工艺进行了优化计算。工艺优化计算结果与现场生产数据吻合良好,验证了工艺优化设计的有效性,从而为热轧最优工艺设计提供指导。     

数据驱动的热轧带钢边部线状缺陷智能预报模型

 边部线状缺陷是热轧带钢易发缺陷,不仅严重影响成材率,还可能对热轧下游工序生产过程造成影响。边部线状缺陷的影响因素复杂多变,建立精确的机理预报模型十分困难。为此,首先分析边部线状缺陷的主要影响因素;然后以智能方法为基础,分别建立了基于逻辑回归与神经网络的边部线状缺陷智能预报模型,并分析了2个模型的精度与泛化能力;最后,以神经网络智能预报模型为基础,对加热工艺参数进行优化,使缺陷发生率与封闭率均大幅降低。研究结果对提高热轧带钢表面质量具有实践意义,可推广应用于同类轧线。     

利用人工神经网络预测钢板性能

基于神经网络原理，采用BP算法训练网络，建立热轧控制参数(轧制温度，化学成分，变形量等)对描述产品力学性能的参数的映射关系。离线仿真表明，将神经网络模型应用于热轧控制预报，具有一定的现实意义。     

热轧 20MnSi 螺纹钢性能预报研究

分析了热轧过程中的冶金现象，并在此基础上通过建模与编程，开发20MnSi螺纹钢热轧过程性能预报模型，用它来分析产品的质量情况。     

热轧板卷Q235B性能预报模型对比与分析

马钢第四钢轧总厂生产的热轧板卷Q235B的力学性能采取线性回归模型进行性能预报,利用建立线性回归模型的数据建立神经网络预报模型,对两种模型进行对比与分析。     

基于人工神经网络的CSP热轧板带力学性能预报

建立了BP神经网络力学性能预报模型.神经网络模型经过训练,得到的预报结果与实际测量的数据相比较表明:BP神经网络预报产品的力学性能精度较高,具有良好的推广价值.     

攀钢高速重轨神经网络性能预报模型研究

提高重轨钢的性能控制能力对其产品质量保证有重要作用.采用神经网络方法建立了重轨生产性能预报模型,并通过模型结构优化提高了模型预报的可靠性.通过模型自检、历史数据检验和离线应用,表明高速重轨的抗拉强度与伸长率预报命中率较高,可基本满足生产要求.     

神经网络技术在钢材性能和组织预报中的应用

最大程度满足用户对钢材产品组织性能的要求是钢材生产的主要目标.随着智能技术的发展神经网络在钢材组织性能预报方面得到了应用.应用实践表明,采用神经网络模型可提高钢材组织性能预报的效果.     

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。     

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.     

Effect of antibiotics of chemotaxis of human leukocytes

The effect of 20 different antibiotics on chemotaxis by human neutrophils was studied. Human leukocytes incubated with chloramphenicol, rifampin, sodium fusidate, and tetracyclines in vitro showed markedly depressed migration. The mechanisms by which these antibiotics affect leukotaxis are discussed.     

Quality of life of relatives of mental patients

Usage of quality of life of psychiatric patients' relatives as the parameter of estimation of the quality of psychiatric care is considered. By means of standard questionnaire elaborated by the authors as well as by means of both individual and group conversations the quality of life was analyzed in 40 relatives which lived together with psychiatric patients. Different spheres of their life and difficulties (financial, social-psychologic, production) were examined in families with such patients. The defects of psychiatric care that had direct influence on the quality of life of the psychiatric patients' relatives are outlined.     

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)