用微小变动量法计算X射线荧光分析中的理论基体修正

微小变动量法是X射线荧光分析中计算理论修正系数的一种成功的方法。用这种方法计算出基础理论修正系数后,可根据需要选择适当的消去项。本文应用作者编写的计算机程序,计算了熔融玻璃片试样的基础理论修正系数δi i后,消去分析元素i及基元素氧两个修正项,得到熔融玻璃片试样中元素间的理论修正系数α_(i-j)以及氧化物间的理论修正系数Aij。最后用所求得的理论修正系数,采用JIS(日本工业标准)模式,用比较标准法分析了6个铁矿石试样,获得较好的结果。     

COMPARISON OF APMP PULP CHARACTERISTICS OF JUVENILE TRIPLOID CHINESE WHITE POPLAR IN SALINE SOIL WITH THAT OF NORMAL 5-YEAR POPLAR

INDRODUCTIONAs we all known, the characteristics of Chinese papermaking and pulping industry are small scale, low-grade products and serious pollution in that the shortage of fiber supply. The effective method for developing Chinese papermaking is integrated forest-paper production by developing fast-growing plantation wood.Common characteristics for the pulps from various wood species of the Populus family are low long fiber yield, high bulk and relatively low strength values. On the ot…     

施工企业应用项目管理成熟度模型的研究

对目前的几种项目管理成熟度模型进行了概述，给出了施工企业应用项目管理成熟度模型的步骤，并就应用项目管理成熟度模型的具体策略进行了论述。     

提高涤／毛起绒啥味呢耐起球性能的工艺探讨

低比例羊毛的涤／毛啥味呢经过起毛，绒面能够达到满意的程度，但起球较为严重，服用性能较差，我们通过正交试验，并进行了工艺改进，找出了最佳的工艺参数，织物耐起球等服用性能有了较明显的改善。     

Preparation and characteristics of flexible all-organic thin-film field-effect transistor

Much attention has been attracted to organic thin-film field-effect transistors (OTFFETs) in the past decades[1—4]. Because of their lower cost and easier preparation, OTFFETs are considered to be useful in driving liquid crystal displays (LCD) and organic light-emitting diodes (OLED). Furthermore, flexible OTFFETs will be one of the most useful electronic devices for flexible active matrix driving circuits. OTFFETs based on pentacene single crystal have been reported to be of g…     

浅谈混凝土裂缝成因及防范措施

分析混凝土裂缝的分类、成因、预防及修补等机理     

应用Green定理解决渔业资源最优捕获问题

利用马尔萨斯生物种群理论中的鱼口模型和Verhulst方程，给出了时间和捕捞数量的关系，然后利用定理，得到了按照一定数量捕捞，才能使恰当时间捕捞的鱼口数量最多的最优方案。     

GROUP SIZE AND PARALLELISM EFFECTS IN TASKS WITHHETEROGENEOUS LEVELS OF DIFFICULTY：A STOCHASTIC ORDER APPROACH

We consider tasks where in order to perform them it is sufficient that one member of a group will know how to do it. We are interested in the effect of task difficulty, and variability of that difficulty, on group performance, and in particular on the marginal contribution of an additional number to the performance of groups of different size. We explore the implications of various stochastic orders over task difficulty and variability. Some intuitive conjectures are shown to be false.     

STUDIES ON HORIZONTAL COMPETITION AMONG HOMOGENOUS RETAILERS THROUGH AGENT-BASED SIMULATION

1. Introduction A supply chain is a network composed osuppliers, manufacturers, retailers, etc., whichcooperate to offer a kind of goods or servicesThese supply chain members cooperate andcompete with each other to maximize theiown profits. For example,…     

Resonance Light-Scattering Spectroscopy Study on Interaction between Gold Colloid and Thiol Containing Pharmaceutical

Ｉｎｔｅｒｅｓｔｉｓｒａｐｉｄｌｙｅｍｅｒｇｉｎｇｉｎｔｈｅｅｘｐｌｏｒａｔｉｏｎｏｆｍｅｔａｌｎａｎｏｐａｒｔｉｃｌｅｓｆｏｒｔｈｅｄｅｔｅｃｔｉｏｎｏｆｖａｒｉｏｕｓｋｉｎｄｓｏｆｍｏｌｅｃｕｌｅｓ.ＥｘｃｅｌｌｅｎｔｅｘａｍｐｌｅｓｉｎｃｌｕｄｅＤＮＡｄｅｔｅｃｔｉｏｎｂｙｃｏｍｐｌｉｍｅｎｔａｒｙｉｎｔｅｒａｃｔｉｏｎｓｏｆｔｈｉｏｌ \|ｃｏｎｔａｉｎｉｎｇＤＮＡａｔｔａｃｈｅｄｔｏｇｏｌｄｎａｎｏ ｐａｒｔｉｃｌｅｓ[1] ,ｐｏｔａｓｓｉｕｍｉｏｎｓｅｎｓｏｒｓｂｙｕｓｉｎｇ 15 ｃｒｏｗｎ …