“在兄弟刊物上”

圆锥破碎机的基础改造实践/李妍妍//新疆有色金属。—1994,(4).—20～23 本文介绍了太白金矿将原PYY1200/80单缸液压圆锥破碎机基础改造、加固后,更换上PYY1650/100单缸液玉圆锥破碎机的设计及施工方法,生产实践表明,采用原设备基础加钢基座的方法更换大一个档次的设备不仅可行、合理,还能缩短停产     

惯性振动圆锥破碎机新工艺及动力分析

本文对国外一种新型圆锥破碎机－惯性振动圆锥破碎机的工艺特性及动力学特性作了分析，为今后进一步深入研究和设计这种破碎机提供了基础。     

影响圆锥破碎机动锥稳定性的因素及预防措施

文章针对圆锥破碎机在生产使用中出现的动锥失稳现象,运用运动学和动力学原理,对圆锥破碎机动锥进行受力分析,找出了影响动锥运转稳定性的因素,并提出了解决方法及在检修安装、使用维护过程中应注意的问题。     

HP300型与PYB1750型圆锥破碎机的应用

HP300型圆锥破碎机系进口设备,与国产PYB1750型圆锥破碎机比较,破碎粒度均匀,安装维修方便,备品备件少,可实现自动清腔,并且具有良好过铁保护功能;不足之处,设备一次性投资大,备件成本高。     

HP300型与PYB1750型圆锥破碎机的应用

HP300型圆锥破碎机系进口设备,与国产PYB1750型圆锥破碎机比较,破碎粒度均匀,安装维修方便,备品备件少,可实现自动清腔,并且具有良好过铁保护功能;不足之处,设备一次性投资大,备件成本高。     

PYY2200超重多缸液压圆锥破碎机粉碎效果与设计分析

PYY2200超重型多缸液压圆锥破碎机可以利用Φ2200弹簧圆锥破碎机的基础、电机、液压站与润滑站,采用液压保险、液压锁紧和液压调整排矿口,通过对破碎腔进行改进设计,同时增大保险总压力和增加破碎圆锥惯性力,有效地利用电机使用功率,从而提高破碎机的破碎效率,改善产品粒度,达到节能降耗的目的,同时提高设备运行稳定性,减少故障率.     

HP300型与PYB1750型圆锥破碎机的应用

H P300型圆锥破碎机系进口设备, 与国产PYB1750型圆锥破碎机比较, 破碎粒度均匀, 安装维修方便, 备品备件少, 可实现自动清腔, 并且具有良好过铁保护功能; 不足之处, 设备一次性投资大, 备件成本高。     

圆锥破碎机机身大铜套固定方法的改进

铜山矿选矿车间采用三段碎矿加两次洗矿的生产流程,矿石为中硬矿石,设备日处理能力3000t/日。沈阳矿机厂生产的φ1650标准圆锥破碎机作为中碎(即第二次破碎);沈阳重型机械厂生产的φ2100短头圆锥破碎机作为细皇(即第三次破碎)。这两台圆锥破碎机均是1958年生产出厂,1959年安装投产的。其机身大铜套的配合与固定,原设计如图1所示:     

HP300型与PYB1750型圆锥破碎机的应用

HP300型圆锥破碎机系进口设备,与国产PYB1750型圆锥破碎机比较,破碎粒度均匀,安装维修方便,备品备件少,可实现自动清腔,并且具有良好过铁保护功能;不足之处,设备一次性投资大,备件成本高.     

细碎圆锥破碎机腔形的研究与实践

近几年,国外细碎圆锥破碎机有了较快的发展,一些优秀的细碎圆锥破碎机已成功地应用在生产上,这些破碎机在其结构和腔形上都各俱特色。本文概括地评述了这些破碎机的腔形特点,分析了我国现使用的φ2200短头圆锥破碎机的腔形结构,指出了影响产品粒度的因素,提出了φ2200短头圆锥破碎机新腔形的设计及工业试验数据。     

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.