水泥稳定碎石基层施工的质量控制

结合浙江某一级公路的水泥稳定碎石基层的施工监理实践,详细阐述了水泥稳定碎石基层取得了宝贵的经验。     

路面水稳基层施工过程材料检测方法

介绍了南京至高淳新通道工程水稳基层施工前期、水泥稳定碎石配合比设计阶段、水泥稳定碎石施工阶段、水泥稳定碎石施工结束后成品的材料检测方法。     

浅谈提高水泥稳定碎石基层平整度的措施和方法

根据杭昱线临安段一级公路的施工监理实践经验，通过对影响水泥稳定碎石基层平整度的因素分析，介绍了提高水泥稳定碎石基层平整度的措施和方法。     

基于纤维增强的水稳基层抗裂性能提升技术研究

为提升基层材料的抗裂性能,分别制备了含有玻璃纤维、聚酯纤维和聚丙烯腈纤维的三种水泥稳定碎石混合料,设置普通水泥稳定碎石混合料为对照组,通过无侧限抗压强度试验,分析不同纤维对水泥稳定碎石混合料强度的影响;对上述四种水泥稳定碎石混合料进行干缩试验,分析不同纤维对水泥稳定碎石混合料的干缩性能影响;最后对优选出的纤维水泥稳定碎...     

水泥稳定碎石基层不同成型方式下力学强度分析

针对目前水泥稳定碎石基层不同成型方式导致层问不同接触与黏结情况,研究了在这些条件下水泥稳定碎石上下基层层间剪切力大小,以及水泥稳定碎石梁式试件抗弯拉强度.结果表明:与层间铺洒水泥浆和直接分层成型试件相比,一次成型试件抗剪强度大大增加;分层成型和界面受到污染试件与一次成型试件比较,试件整体性下降,弯拉强度降低.     

谈贫砼基层施工质量控制的要点

贫砼是由集料与一定水泥和水拌和而成的砼,其水泥用量较普通砼低,也称经济砼.与水泥稳定级配碎石、二灰碎石等常用半刚性基层材料相比,贫砼具有较高的强度,刚度、抗冲刷性和耐久性能.本文结合白音花至霍林河一级公路贫混凝土基层施工的经验,谈了贫砼基层施工质量控制的要点.     

水泥砼旧路面加铺沥青砼路面层中防反射裂缝的主要措施简析

水泥混凝土路面是我国城市道路的主要类型，在旧水泥混凝土路面上加铺沥青混凝土面层是改善路面使用性能、提高路面使用寿命的主要措施之一。本文简要分析了反射裂缝产生的机理，以及各主要技术措施能防止或延缓反射裂缝的机理。     

橡胶沥青应力吸收层在旧路面改造中的应用

分析了水泥混凝土路面沥青加铺层反射裂缝的产生机理,介绍橡胶沥青应力吸收层良好的抗反射裂缝效果及其路用性能.结合金溪县秀谷中大道改造工程的设计、施工情况,阐述了橡胶沥青应力吸收层在旧路面改造中的应用.     

水泥稳定碎石混合料在城市道路中的应用

针对水泥稳定碎石混合料这一新型的筑路材料具有整体性好、水温稳定性好、强度高、刚度大等特点分析了影响其强度和稳定性的主要因素，阐述了其施工工艺流程和现场质量的控制方法，论述了其基层主要病害产生的原因和防治措施。     

水泥粉煤灰碎石桩(CFG)在地基处理中的应用

结合水泥粉煤灰碎石桩在某工厂的应用,介绍该技术的施工工艺和设计计算.施工后CFG桩桩体质量好,承载力高,经济性优越,对指导软弱地基处理与加固具有一定的参考价值.     

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。     

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.     

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。     

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.