中老年女性全血比粘度参考值与中国地理因素的关系

为制定中国中老年女性全血比粘度参考值的统一标准提供科学依据，本文收集了中国各地用毛细管法测定的健康中老年女性全血比粘度参考值，并对其与地理因素的关系进行了研究，发现海拔高度是影响中老年女性全血比粘度参考值最主要的因素，随着海拔高度的逐渐增大，中老年女性全血比粘度参考值也在逐渐的增大，相关性很显著，用逐步回归分析的方法推导了一个回归方程。如果知道了中国某地的地理因素，就可以用回归方程估算这个地理因素     

低压ECL或与门双极型电路设计方法

在电路三要素(信号,网络和负载)理论的基础上提出双极型ECL元件级电路通用综合方法,并依此理论设计出一种新型低压ECL或与门电路。所设计的电路工作电压低,仅为1.8V,作为常规ECL门的补充类型,常可用于简化一般ECL电路结构,例如ECL双边沿D触发器。最后经计算机模拟证明理论与电路的正确性。     

添加元素对CuAlNi形状记忆合金性能的影响

本文研究了添加元素对ＣｕＡｌＮｉ形状记忆合金组织，机械性能和记忆性能的影响，结果发现复合添加（Ｍｎ，Ｔｉ）显著地细化晶粒，提高了材料的热加工性和延展性。     

元素星系化学演化的分析解

利用瞬时循环近似，考虑元素产率随金属丰度的变化，得出了主要金属元素星系化学演化的分析解，结合恒星核合成结果，计算了银河系中O元素、Mg元素、Na元素、Sc元素等丰度随金属丰度的变化规律，并与观测结果进行了比较。     

经验过程的Cesaro大数定律

给出经验过程Ｃｅｓａｒｏ大数定律成立的充要条件，建立Ｈｅｉｎｋｅｌ的结果在经验过程中的相应形式     

实(复)数域上多元三次多项式可分解的一个充要条件

运用统一的方法对实数域和复数域上的多元三次多项式的分解问题加以讨论。首先把多元三次多项式表示为矩阵的乘积形式，然后给出实（复）数域上多元三次多项式可分解的充分必要条件－存在满足一定条件的对称实（复）矩阵，并给予证明，同时给出分解的方法及例子说明。     

THE WEAK BENSON PROPER EFFICIENT SUBGRADIENT AND THE OPTIMALITY CONDITIONS OF SET-VALUED OPTIMIZATION

1 IntroductionIt is wel1 known that Hahn-Banach theo1.em is one of the basic theorems in functionaIanalysis. It has been extended to vector function, under efficiency by Shi[1] and Wang[2]in ordered vector spacest alld, under strong cone efficiency to set-valued maPping by Chenand Wang(3l. Receatly, Mengt4] and LiI5] has extended it to set--valued mapping with weakefficiency. Generally speaking, weak efficiency has too wide a scope for the decider to obtain afinal choice, so several prope…     

国产Lc4超高强度铝合金材料制造高压缸筒的研究

简要介绍了在引进和消化进口液压胀裂机的过程中，以国产Lc4超高强度铝合金材料为基础，通过调整和控制各种化学成分的配比和优化时效工艺参数的方法取代进口材料制造高压罐筒的研究方法，并给出一些关键的工艺参数。     

A NEW STABILIZED FINITE ELEMENT METHOD FOR SOLVING THE STOKES AND NAVIER-STOKES EQUATIONS PART I. THE LINEAR CASE

1 IntroductionDuring the past decade, many stabilized finite element methods were designed for solvingproblems arising from fluid and solid mechanics. For example, the Navier--Stokes problem hasbeen playing an active role in the development of stabilized methods, e.g. see [1--6], etc andreferences therein. It is well known that the standard GaJerkin method for the Navier--Stokesproblem is subject to two main obstacles. One comes from the high Reynolds nUmber or highadvection, or the limiti…     

Simultaneous Determination of Trace Rare Earth Elements and Other Elements in High Purity Terbium Oxide (Tb4O7) by ICP-AES After HPLC Separation Using P507 Resin

This article describes a new method for the simultaneous determination of trace rare earth elements (REEs) and non rare earth elements (NREEs) in high purity terbium oxide by ICP-AES after HPLC separation using P507 resin. The chromatographic separation of the analytes from the matrix using dilute nitric acid as mobile phase was studied. The experimental results showed that a favorable separation of trace metals (Cu and Gd) from the matrix (Tb) can easily be achieved by elution with dilute nitric acid within 25 min. The proposed method was applied to the determination of trace metals (Ca, Cu, Mg, Mn, Ni, Si, La, Ce, Pr, Nd, Sm, Eu and Gd) in high purity terbium oxide. The detection limits (DLs) for the analytes ranged from 0.4-4.0 μg\5g-1, and the recoveries are from 78%-105%.