数据仓库技术在青干统计系统中的应用

针对传统青干管理工作中存在数据分散、数据规则不统一、数据信息化水平低等问题,提出了基于数据仓库技术的青干工作信息年度统计系统的设计方案.系统采用组件式开发技术,按照C/S体系结构搭建系统框架,采用MVC架构模式实现程序的表现层、控制层和模型层的分离,并运用数据仓库的数据组织理念使数据的信息化水平和基于数据的多维分析能力都得到极大提高.以河南省为应用实例,验证了该系统设计方案的合理性和有效性.     

用Perl编程进行因特网数据整理的方法

采用Perl编程语言对网络资源数据进行转换,使其数据格式适合S-plus软件处理.并以2001年法国赛车数据为例进行分析,结果表明Perl非常适合处理零乱的原始数据.通过识别一些特殊字符,Perl可以读取包含特殊字符的那些行,这个性质使Perl成为数据整理的有力工具.     

水性凝胶剂的制备及常用辅料

论述了水性凝胶剂的制备以及常用的辅料及其使用方法。     

造纸工艺管理的七种统计方法

介绍了统计技术在一线生产过程中对工艺管理的指导意义,从具体的数据分析中发现解决问题的关键所在.     

医疗卫生用全棉水刺非织造布的生产技术探讨

根据棉纤维的特点,对原生产50/50涤粘水刺非织造布的生产线进行工艺调整,可以生产出产品质量合格的医疗卫生用全棉水刺非织造布。阐述了工艺调整的几个主要技术要点。     

Describing temporal variation in reticuloruminal pH using continuous monitoring data

Reticuloruminal pH has been linked to subclinical disease in dairy cattle, leading to considerable interest in identifying pH observations below a given threshold. The relatively recent availability of continuously monitored data from pH boluses gives new opportunities for characterizing the normal patterns of pH over time and distinguishing these from abnormal patterns using more sensitive and specific methods than simple thresholds. We fitted a series of statistical models to continuously monitored data from 93 animals on 13 farms to characterize normal variation within and between animals. We used a subset of the data to relate deviations from the normal pattern to the productivity of 24 dairy cows from a single herd. Our findings show substantial variation in pH characteristics between animals, although animals within the same farm tended to show more consistent patterns. There was strong evidence for a predictable diurnal variation in all animals, and up to 70% of the observed variation in pH could be explained using a simple statistical model. For the 24 animals with available production information, there was also a strong association between productivity (as measured by both milk yield and dry matter intake) and deviations from the expected diurnal pattern of pH 2 d before the productivity observation. In contrast, there was no association between productivity and the occurrence of observations below a threshold pH. We conclude that statistical models can be used to account for a substantial proportion of the observed variability in pH and that future work with continuously monitored pH data should focus on deviations from a predictable pattern rather than the frequency of observations below an arbitrary pH threshold.     

翻白草营养成分及部分药用成分的测定与分析

对翻白草营养成分和部分药用成分进行测定,实验结果显示:翻白草地上部分(包括茎、叶)、地下部分(块状根)均含有淀粉、可溶性糖、脂肪、VC、蛋白质等营养成分,除VC和蛋白质外,其他营养成分的地下部分含量高于地上部分。翻白草地上部分及地下部分熊果酸、鞣质、黄酮的含量分别为320.1mg/g、257.4mg/g、51.0mg/g、82.7mg/g、20.60mg/g和5.11mg/g,本研究为翻白草的进一步开发利用提供一些新的数据。     

医用热轧非织造材料导湿性能的研究

选择五块医用非织造材料样品,分别采用垂直芯吸法和滴液法测试其导湿性。结果表明:试样的导湿性随着测试温度的上升而提高,随着试样厚度、面密度和轧点数的增加而降低。     

A statistical approach to the biosynthetic route of fatty acids in olive oil: cross-sectional and time series analyses

A study of the biosynthetic route of the fatty acids in Greek virgin olive oil is presented. The investigation of the behaviour of the fatty acids is based on the statistical analysis of data of percentage composition in fatty acids of Greek olive oil during the ripening period of the olive. The existence of time series observations within several cross-sections provides the opportunity to assess the cross-sectional effects along the time series effects. The increased availability of cross-sectional information over time provides opportunities for a more complete statistical methodology in chemometrics. The methodology of pooling time series and cross-sectional data is proposed in this study. Pooling allows us to test the homogeneity hypothesis that the slopes and intercepts for the same variables are equal for different periods. It is demonstrated here that pooling is not appropriate and the results obtained are no better than separate time series or cross-sectional estimates. However, it is important that the method be introduced. The results obtained in this paper are useful in studying a synthesis of time series and cross-sectional effects for the fatty acids of olive oil. © 1999 Society of Chemical Industry     

医疗废物管理处置现状与对策

随着经济的不断发展,医疗卫生机构在医疗活动中会产生一些具有感染性及其他危害性的医疗废物,并且随着医疗机构的增加,医疗废物的数量也呈现上涨的趋势,本文首先简要介绍了医疗废物的特征,然后分析了医疗废物的处理现状,接着分析了医疗废物管理处置过程中存在的问题,最后从四个方面分析了管理处置医疗废物的具体策略,以此来供相关人士交流...     

壳聚糖非织造布的制备及壳聚糖非织造医用敷料的研究进展

阐述了壳聚糖纤维和壳聚糖非织造布的制备方法,其中用水刺法加工的壳聚糖非织造布最适合用作医用敷料。介绍了壳聚糖非织造医用敷料的优良性能及国内外的研究现状,指出壳聚糖非织造布在医用敷料方面有着广阔的市场前景。     

Meta分析中关于总体效应量的区间估计

在随机效应的Meta分析中,通过修正产分布法中相应统计量分布的不精确性,得到更高精度的总体效应量的置信区间．与D-L法相比,改进的争分布法得出的置信区间的覆盖率和精度均有所提高;与争分布法相比,改进的t-分布法覆盖率相当,但精度有所提高．所以本文提出的方法是基于争分布法的一种简便和有效的方法．     

医用脱脂棉纱布的氧化改性处理及性能分析

随着我国医疗设施的不断改革,医用脱脂棉纱布的吸液性能有了长足的发展,通过过碳酸钠进行氧化改性处理形成氧化医用棉纱布。文章从氧化改性的实验进行介绍,分析其表现特征和性能。在过碳酸钠氧化过程中,充分体现出该方法是脱脂棉纱布进行氧化的最佳方法,但是其纤维工艺也会对实验结果造成一定影响。     

High-performance liquid chromatographic analysis of biogenic amines in pharmaceutical products containing Citrus aurantium

A reverse-phase (RP)-HPLC method is reported for determining L-tyrosine, p-octopamine, synephrine, tyramine and hordenine as chemical markers of the species Citrus aurantium in raw material, dry extracts and phytotherapeutic herbal formulations. Using RP-HPLC with diode array detection (DAD) and gradient elution, the amines were determined in 12 different products from different Brazilian states labelled as containing C. aurantium. The presence of the amines was confirmed by mass spectrometry using electrospray ionisation (ESI-MS/MS). This RP-HPLC method allowed the separation of the amines from complex mixtures containing caffeine, ephedrine, salicin and other raw materials (e.g. Garcinia camboja, Phaseolus vulgaris, Caralluma fimbriata, Cassia nomane, Ephedra sp. and Cordia ecalyculata). The method proved useful and selective for inspecting herbal medicines containing p-synephrine and structural analogues. The herbal products analysed had a p-synephrine content ranging from 0.005 to 4.0% (w/w).     

纺织材料在医学及保健领域的应用

随着纺织生产技术及医学科学技术的发展,纺织材料在医学领域的应用得到迅速发展。文章对纺织材料在医学和保健卫生领域的应用进行了综述,叙述了医用和保健卫生用制品的种类、功能、生产方法和所用原料。     

Origin 6.0软件在分析化学数据处理中的应用

以分析化学中分析数据的统计性检验、滴定分析中滴定体积计算和标准加入法中浓度计算为例,介绍了用Origin6.0进行数据处理的具体方法.     

核桃青皮的成分与药理研究进展

简述了核桃青皮的化学成分及药理作用的研究进展。药理研究证明,核桃青皮具有抑菌、镇痛、抗肿瘤等功能。为进一步研究、开发和利用我国丰富的核桃青皮资源提供了思路和方法,具有一定的指导意义。     

天然医疗保健纤维的性能及应用

重点介绍了开发医疗保健纺织品所采用的天然纤维,包括罗布麻纤维、蚕丝、竹纤维、甲壳素纤维、海藻纤维的医疗保健功能和应用;简要介绍了其制作方法和发展前景。     

低松弛预应力钢绞线松弛试验数据线性回归模型

用数理统计方法建立了低松弛钢绞线松弛试验数据的线性回归模型，用于推算１０００ｈ松弛值。根据计算结果．能够分析和判定试样是否满足规范要求，并能对松弛试验的有效性和回归结果可靠性进行评价。     

Farmers' choice of medical treatment of mastitis in Danish dairy herds based on qualitative research interviews

A qualitative research study was conducted to describe and analyze farmers' perspectives on their own choices regarding decisions to have cows treated for mastitis. Through qualitative research interviews of 16 Danish dairy farmers, four levels of the decision-making process used by farmers to decide whether or not to treat a cow with antibiotics were identified. Those levels were: 1) symptom level (seriousness of the mastitis case), 2) cow level (to the extent a cow fulfilled goals of the farmer and the herd), 3) herd level (the situation of the herd, e.g., in relation to milk quota), and 4) level of alternatives (whether the farmer regards such practices as blinding of teats or homoeopathy as serious alternatives to antibiotic treatment). All four levels could be recognized in all herds, but with differing weights and relative importance across herds. Directions of different possibilities within each level also varied among farmers. By identifying those four levels, a model for understanding the farmers' choices is provided. This provides background for dialogue with each farmer about choices in the context of each specific herd. It also provides insight into implications of mastitis treatments for effective treatment versus issues of antibiotic resistance when discussing choices on a more general level. Communication and understanding between farmers and their veterinarians and cattle-oriented advisors is essential. Farmers were shown to be coherent in their choices of treatment, but their decisions often seemed to differ from normal veterinary recommendations. Such differences have to be understood and implemented into effective decisions for the whole farm.