曲面片可展性能的研究

本文通过对曲面片近似展开误差的分析研究,提出了曲面片可展度的概念,且在理论上对其进行了推导,并对其工程应用作了较为详细的叙述。     

超限箱工属具的技术改造

我公司现有超限箱工属具由转锁和保护套两部分构成。接卸超限箱的工艺流程为 :先将钢丝绳扣的一端通过卡环与岸桥的吊具相连接 ,另一端通过卡环与超限箱专用工属具的转锁连接 ,然后把转锁的锁头竖直放入集装箱的箱眼里后顺时针转动 90°角 ,再把转锁护套放下来进入箱眼并落实 (     

56例胆石核心细菌培养分析

本文报告经手术取出56例胆结石的核心细菌培养实验研究,其中胆囊结石44例,42例培养无菌生长,2例核心培养为大肠杆菌;原发胆总管结石7例,6例培养为大肠杆菌,一例为大肠杆菌及变形杆菌;胆囊加胆总管结石5例(仅送胆囊结石)无菌生长。实验研究结果显示胆管结石细菌培养阳性率高,本组为100％。预防胆系带菌状态及早治疗胆道感染是预防胆管结石的重要措施之一。     

叉车侧移器的结构设计探讨

随着国民经济的高速发展,叉车的需求量与日剧增,为了提高作业效率,用户对叉车的使用要求越来越高,特别是要求叉车上安装各种属具的用户越来越多。据统计,我公司2003年销售的产品中有1／3以上加装了侧移器,下面就侧移器的结构设计与同行们作简要探讨。     

冷轧卷板装卸工属具的研制

为了解决冷轧卷板在装卸中的伤残问题,提高装卸效率,研制了新的冷轧卷板装卸工属具。就舱内作业、出舱作业、水平运输作业等装卸工艺提出各种方案,并确定最佳方案,制造相应的工属具。研制的"冷轧卷板水平运输托架"、"冷轧卷板叉车挂胶属具"、"多角度叉车属具"等已获专利,有实用价值。     

Isolation and Characterization of Microorganisms for Degradation of Minimal Oils and Fats at Low Temperatures

The isolation of microorganisms for biodegradation of minimal fats and oils at low temperatures was reported. By using rapeseed oil as a sole carbon source, six strains were isolated from five kinds of oils/fats-contaminated wastewater, soil, and active sludge. Among them, two strains which show the highest oil removal ratios were identified as Pseudomonas pseudoalcaligenes and Pseudornonas mendocina, respectively. The experiments of orthogonal impact conditions show that the optimal oil degradation condition is at pH 8.0, 5 C and 100 mg/L oil. Under this condition, the rapeseed oil degradation ratios of two strains after 24 hours amount to 92. 6% and 92.0% respectively, whereas the removal ratios of lard decrease to 39.5% and 54.3%.     

Nine pathogenic fungi of waterhyacinth isolated in China

The native pathogens of waterhyacinth in China, were studied and compared on pathogenicity by Koch＇s postulate. Nine pathogenic fungi, YBH, YBB, YB, YYX, YY, YBA1, YBA2, YBA3 and YYB12, were isolated from diseased waterhyacinth plants, and collected from Zhejiang province and Shanghai. According to cultural characteristics, the nine isolates were preliminarily identified. Isolates YBH and YBB were Collectotrichum sp.; YB, YYX and YY were placed in fungi imperfecti; the isolates YBA1, YBA2, YBA3 and YYB12 were Alternaria sp. The isolate YBH was the highly virulent with a disease index （DI） of 65.28% after one month inoculation. The isolate YBA3 was equily virulent, with the disease index of 6770 after 7 day introduction. These two pathogens appear to have the potential as biocontrol agents and they deserve further study.     

基于模糊层次分析法的城市轨道交通规划SEC决策评价

为了对轨道交通规划方案进行定量评比,建立了轨道交通规划方案的安全（S）、效能（E）和成本（C）指标体系,评价过程中,对SEC指标体系中定性和定量的指标分别采用专家评判和隶属度函数两种方式进行处理,尽量保证指标的真实性,并建立基于模糊层次分析法轨道交通规划方案评估模型,运用方根法对指标进行排序,实现轨道交通方案的评选与决策。最后以某市轨道交通不同规划方案为例,验证了该指标体系和方法的合理性,为轨道交通规划方案的决策提供了理论依据。     

河南省“三化”协调发展趋势研究——基于主成分和模糊录属度的分析

首先建立河南省城镇化、工业化和农业现代化评价指标体系;然后根据2006-2010年数据,利用 SPSS 软件对指标数据加以标准化和主成分分析,并利用模糊录属度概念进行“三化”协调度研究;最后根据协调度分析出河南省“三化”两两子系统之间基本处于良好协调,但却存在协调度下降趋势.根据“三化”主成分分析得出其各自主导因素,促“三化”协调需要积极承接产业专业和探索农业产业化经营方式.