山东改造工程旧房质量检测

结合某成品仓库改作商业用房的工程实例,对该建筑进行了详细的检测与分析,并根据结果提出了针对性的加固方案,并对加固效果进行了探讨,为工程改造提供了依据,可供类似工程借鉴。     

世界汽车及其润滑油的发展与排放的相关性分析

介绍了美国，欧洲，日本，中国汽油机油与柴油机油的发展过程，现状，趋势及其与排放的相关性，指出：90年代美国环保要求与节能变得更加严格，美国内燃机油规格进展充分反映了这一变化；欧洲，日本进入21世纪总的方向也是如此；中国的轿车工业主要是世界知名汽车厂商合资生产，其内燃机油规格遵守世界汽车厂商的要求，基本上跟随欧洲规格。     

LASER ENHANCED ELECTROCHEMICAL MACHINING PROCESS

An experimental apparatus was designed and built for the hybrid process of laser enhanced electrochemical machining (ECM). Comparison experiments had been done between solely ECM and laser enhanced ECM. The machining performance of hybrid process was investigated and compared with solely ECM. The principle of the hybrid process was exposed by analyzing the microstructure of machining surface. The results show that the hybrid process has advantages in machining accuracy, surface quality, and machining efficiency.     

谈两苯塔波动的原因及处理方法

在石家庄焦化厂两苯塔系统工艺的基础上，通过对生产中两苯塔波动引起轻苯质量不稳定的原因进行分析，找到了不稳定的原因，并提供了行之有效的解决方法。     

农业重组微生物生物安全研究进展

综述了近年来农业重组微生物的研究现状和进展 ,详细介绍农业重组微生物环境释放的监控方法以及对环境的冲击作用 ,对一些有关生物安全研究的热点问题进行了探讨     

试谈配料方案与质量预测的优化

主要探讨了以理论推算为主，根据物料成分建立不同配比方案，再以实践累积经验为辅组建系统配料方案。此系统方案的建立，克服了烧结原料品种变换频繁带来的质量波动，稳定了混匀料和烧结矿的化学成分。     

混凝土喷锚技术在宝珠寺水电站边坡防护中的应用

混凝土喷锚支护可提高边坡岩土的结构强度和抗变形刚度,增强边坡的整体稳定性和承载能力.本文根据宝珠寺水电站左右岸边坡主要采用混凝土喷锚支护的工程实践,介绍了施工方案设计、材料要求、施工方法、技术措施,以及现场质量管理和检测等问题.     

Phosphorus Inputs to Lake Simcoe from 1990 to 2003: Declines in Tributary Loads and Observations on Lake Water Quality

Total phosphorus (TP) inputs to Lake Simcoe have led to hypolimnetic dissolved oxygen (DO) depletion and loss of cold water fish habitat. Since 1990, efforts have been made to reduce the total TP input to the lake below a defined target of 75 t/year, which was predicted to lead to reductions in spring TP concentration and improvements in end-of-summer hypolimnetic DO concentrations. The total TP load to the lake during the most recent period of record (1998/99-2003/04) ranged from 53 to 76 t/yr and averaged 67 t/yr, compared to an average of 114 t/yr estimated between 1990/91 and 1997/98 (range 85-157 t/yr). Reductions in TP loads from the catchment via tributary discharge (∼26 t) accounted for the majority of the decrease in total load between the two time periods. Total P concentrations decreased significantly in four out of six long-term monitored tributaries; however, concentrations in all six tributaries remain above the level recommended to avoid nuisance plant growth (30 μg/L). Although TP loads to the lake are currently below the target 75 t/yr, excessive growths of filamentous algae and macrophytes continue to be a problem in the nearshore zone. End-of-summer minimum hypolimnetic DO concentrations (average 4.3 mg/L, 1998/99-2003/04) remain substantially below the level (7 mg/L) that is considered protective of lake trout. Efforts to reduce TP loads to the lake therefore need to continue.     

科学焚烧垃圾系统的技术特点

科学焚烧处理垃圾法具有占地少,场地易选择,时间短,减量化显著,无害化彻底以及回收余热供发电供热等优点.其处理设备和控制系统是保证科学焚烧处理垃圾成功,并带来巨大经济效益的关键.鉴于此,文章对科学焚烧垃圾系统设计作了比较详细的介绍.     

电炉钢外来夹杂控制的研究

介绍了夹杂物的来源,包括内生夹杂和外来夹杂,着重于二次氧化产物、卷渣、内衬侵蚀.同时介绍了鄂钢电炉厂在冶炼和连铸过程中控制夹杂物的操作实践.