钢铁企业MES系统中的数据存储技术及其应用

对目前主要的数据存储技术进行了论述和分析,详细讨论了数据的存储及容灾管理问题,包括建立SAN存储体系,实现数据的集中存储、数据的备份管理、以及数据远程容灾等内容.构建了一个具有良好扩展性、可用性、可靠性,能提高网络整体性能的钢铁企业MES系统数据存储、备份及容灾解决方案.     

浅谈招贴的实用性和艺术性

招贴作为一种视觉传达艺术,最能体现出平面设计的形式特征.它具有视觉设计基本要素,它的设计理念、表现手段及技法较之其他广告媒介更具直接性和典型性.本文从招贴的自身出发,简述其发展历程,并分析招贴的实用性与艺术性.     

浅谈纪录片制作中的修辞创新

前苏联纪录片大师伊戈尔·别利亚夫在<纪录片的形象>中说:"我的原则是只纪录那些触动我心弦的东西.""触动心弦"的深度主要表现在透视力、感染力、艺术性三方面.透视力是指作品揭露人本主题的深刻程度,反映出人的创造性活动及其文化内蕴的精确度;感染力则是在展示事实过程中张扬出的人物个性、人格魅力和生存精神:艺术性表现为对结构布局、叙事方式和蒙太奇手法等体现作品风格的内外多种因索的和谐统一的追求.     

温度和pH值对泥鳅存活和摄饵的影响

[目的]为泥鳅的人工养殖提供理论数据.[方法]通过室内饲养试验,测定不同温度(15、20、25、30℃)及不同pH值(5、6、7、8、9)下泥鳅的存活率及摄饵量.[结果]随着温度的升高,泥鳅的存活率及摄饵量均表现为先增高后降低的趋势;随着pH值的升高,泥鳅的存活率及摄饵量的变化均也表现为先增高后降低的趋势.[结论]泥鳅生长的最佳温度为26-28℃,最佳pH值为6.6-7.2.     

唐代琵琶文化在《琵琶行》中的体现

白居易的《琵琶行》因其对琵琶的深入描写,引起了音乐人士对＂唐代琵琶＂的广泛关注,倘若对《琵琶行》诗文句句斟酌和剖析,呈现眼前的正是浓郁的＂唐代琵琶文化＂：广度上的流传普及;深度上的技艺高超;情感上的浓郁表现;演奏方式上的＂拨弹＂盛行和琵琶的较高地位等。     

中国传统戏曲与当代绘画的渊源

中国传统戏曲是中华文化的重要组成部分。中国戏曲源于民间艺术,具有独具魅力的艺术性与观赏性。这些艺术元素为艺术家提供了自由的创作空间和源源不断的视觉资源。如何从中国传统戏曲文化中吸取营养,应用在当代绘画表现中,并形成自己民族独特的艺术风格,正是本文论述的主要内容。     

某矿区1:1000比例尺的无人机数字航空摄影研究

针对某矿区测区实际情况,对其1:1000比例尺的无人机数字航空摄影进行深入分析,内容包括基本要求、航摄系统选择、航摄设计要求、航摄实施要求、航摄数据预处理.     

莫高窟第217窟南壁经变新解

本文对敦煌莫高窟第217窟南壁一直被认为是<法华经变>的图像进行重新辨认,找出其佛经依据,并提出整个南壁内容应为<佛顶尊胜陀罗尼经变>的新解释.     

基础形态表达教学中的思考——关于设计素描

设计素描是对素描艺术的实用性、艺术性的一种深化,设计素描是设计意图形象化的表达方式,是二维平面表现三维立体空间造型的基本方法。在设计创作活动中,设计素描是交流构思的视觉语言,是设计师主体及空间造型设计表现的体现。     

短缺预期支撑铂钯价格上涨

铂族金属拥有贵金属和工业金属两种属性,在全球经济动荡与分化中表现出独特品质。价值决定价格,供需两方的变化决定着价格波动与走势。综合经济、生产及需求多种因素影响,安泰科对近期铂族金属市场持谨慎乐观态度。     

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.     

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。     

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.