城市生活垃圾资源化研究

主要介绍了我国城市生活垃圾的处理现状及存在的问题,总结了我国城市生活垃圾的资源潜力,提出了城市生活垃圾资源化的措施,为实现我国城市生活垃圾资源化提供了新的思路。     

基于GIS的城市生活垃圾规划管理智能决策系统的关键技术

用现代先进的信息技术对城市生活垃圾信息进行科学、高效地管理,为城市生活垃圾治理可持续发展战略决策搭建先进的技术支撑平台,是城市生活垃圾规划管理研究的重要内容.本文在城市生活垃圾规划管理的实践基础上,完成了城市生活垃圾规划管理决策系统功能模块的设计,初步构建了辅助决策系统,探讨了图文一体化技术、模型库构建、系统模型库与GIS(地理信息系统)无缝集成、基于知识的系统等关键技术的实现     

关于城市生活垃圾的危害及特性分析

城市生活垃圾是当今人类面临的主要环境问题之一，由于其危害严重，目前已受到世界各国的普遍关注。本文通过阐述城市生活垃圾的危害，说明处理城市生活垃圾的必要性。最后介绍了与垃圾处理技术有关的城市生活垃圾特性。     

农村生活垃圾处理面临的问题及建议

分析了农村生活垃圾的来源,揭示了处理农村生活垃圾所面临的问题,并提出了相应的解决建议与对策.     

弥渡县城市生活垃圾处理现状及对策探讨

对弥渡县城市生活垃圾的产生、构成、垃圾收运、处理、环境污染等现状进行综合分析，找出了目前弥渡县城市生活垃圾管理中存在的问题。同时提出了为使弥渡县城市生活垃圾管理走出困境应当从法规宣传、管理体系、技术路线、经济政策等方面人手的建议。     

试论我国生活垃圾无害化处置的合理途径

本文论述了国内则、生活垃圾无害化处置的主要方法及其现状，并对国内生活垃圾的无害化处置发展方向提出了看法。     

城市生活垃圾分类难在哪里

正城市生活垃圾分类问题困扰了人们多年,最近这一难题的解决有了新进展。住建部城市建设司表示,截至目前全国46个重点城市均已开展生活垃圾分类投放、收集、运输和处理设施体系建设,多个城市生活垃圾分类工作已初见成效。但不可否认,目前这项工作整体上仍处于起步阶段,还面临不少困难和挑战。要持续深入推进城市生活垃圾分类,让居民在参与垃圾分类的过程中体味更多获得感。     

生活垃圾卫生填埋场环境监测的探讨

从国内城市生活垃圾填埋场的现状和发展情况出发，扼要地分析了生活垃圾填埋场的主要污染源及其对环境的影响，指出环境监测在填埋场运营过程中的重要性，对适应我国国情的垃圾填埋场环境监测工作进行了探讨     

生活垃圾热解工艺现状

采用热解技术处理生活垃圾可将垃圾转化为能源,并能有效降低有害气体、溫室气体及挥发性有机物的排放。通过调整热解工艺条件可实现生活垃圾转变为多种状态的能源物质,如固体破、可燃气等。本文介绍了生活垃圾热解技术的原理及工艺,对原料适应性、热解装置类型、工艺适用性等进行了对比。     

生活垃圾处理又有新招

建设部近期推出8项城市生活垃圾处理适宜技术及9项具有适宜前景的技术和项目。城市生活垃圾处理经过十几年的发展,已经呈现多元化的趋势。为引导各地正确选择生活垃圾处理技术和工艺,提高投资效率和处理设施的运行水平,建设部组织专家对现有部分垃圾处理技术和项目的适宜性进行了评估。1.适宜技术和项目150t/d生活垃圾焚烧炉;FDLLF-50型生活垃圾焚烧炉;福州市红庙岭垃圾卫生填埋处理技术;深圳市下坪垃圾卫生填埋技术;垃圾卫生填埋技术暨安定垃圾卫生填埋场;无锡市桃花山生活垃圾卫生填埋场卫生填埋技术及管理;济南市生活垃圾卫生填埋场垂…     

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.     

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.