应用迭代法求解一类非线性问题

本文应用迭代法求解一类有限维非线性问题,该方法是求解线性问题的雅可比迭代法在非线性问题上的推广,且此迭代方法具有几何收敛性质.     

Investigation of the Interaction between Isoflavonoids and Bovine Serum Albumin by Fluorescence Spectroscopy

The interactions of bovine serum albumin （BSA） with three structurally related isoflavonoids, genistein, puerarin and daidzein, were studied under physiological conditions by fluorescence spectroscopic technique. The quenching mechanism of these compounds with BSA was suggested as static quenching and the binding constants were determined at different temperatures based on the fluorescence quenching results. The transfer efficiency of energy and distance between the acceptor and BSA were investigated on the basis of the mechanism of the Forster energy transference. According to the thermodynamic parameters it has been suggested that the acting force be mainly hydrophobic force. The comparison of binding potency of the three isoflavonoids to BSA showed that the substitution by 5-OH and 8-Glc could enhance the binding affinity. All these obtained in the work can make us better understand the mode of the action and pharmacological activities of the isoflavonoids.     

m值逻辑函数的多分块仿射逼近

文章定义了ｍ值逻辑函数在Ｄｚｎｍ上的Ｃｈｒｅｓｔｅｎｓｏｎ变换，并考察了这类变换的性质，在此基础上提出了对ｍ值逻辑函数进行多分块仿射逼近的方法，并分析了这种方法的优越性。特别地，重点给出了布尔函数的多分块仿射逼近，并用此方法得到了文献［２］所给出的最大相关子。     

空气-氩气混合气冷却ICP中镁、铬、镉、锰四种元素的谱线强度和信背比的测定

本工作使用扫描等离子体光谱仪，在与小功率ＡｒＩＣＰ类似的条件下，测定了空气氩气混合气冷却ＩＣＰ中镁、铬、镉、锰谱线强度和信背比随冷却气组成及观测高度的变化，并估算了折衷条件下的检出限。结果表明对于离子线及激发电位较高的原子线，当冷却气中引入５～１０％空气后，谱线强度最大并大于ＡｒＩＣＰ中数值；对于激发电位较低的原子线，随着冷却气中空气含量的增大其谱线强度逐渐减小。谱线的信背比则与激发电位及谱线波长有关。     

超小金属粒子的热力学性质

超小金属粒子系综的热力学性质受到分离电子能级分布和能级关联的影响。在考虑能级统计后，数值计算了含有奇数或偶数个电子的超小金属粒子正则系综的电子比热和自旋磁化率，并讨论了其低温和高温特征。作为例子，本文数值纳米铝粒子的电子比热和自旋磁化率。     

反重力充填二维流形的显示、观察及分析

本文介绍了反重力充填二维流形的颗粒显示、拍摄和数据测取方法。作为分析实例,给出了充型扩散角随内浇道扩张角变化的实验结果。     

1,3—二氢—1—氧代—3—取代异苯并呋喃类化合物的新合成方法

邻羧基苯甲醛与丙酮在碱性条件下发生Ｃｌａｉｓｅｎ－Ｓｃｈｍｉｄｔ缩合反应，其产物在稀酸催化作用下经重排得到化合物，１，３－二氢－１－氧代－３－丙酮基异苯并呋喃，其他取代乙基酮的相似反应条件下得到类似产物。     

Laterally Confined Modes in Wet－Etched, Metal－Coated, Quantum－Dot－Inserted Pillar Microcavities

We report the fabrication and the measurement of microcavities whose optical eigenmodes were discrete and were well predicted by using the model of the photonic dot with perfectly reflected sidewalls. These microcavities were consisted of the semiconductor pillar fabricated by the simple wet-etched process and successive metal coating. Angle-resolved photoluminescence spectra demonstrate the characteristic emission of the corresponding eigenmodes, as its pattern revealed by varying both polar (θ) and azimuthal ( φ) angles. It is shown that the metal-coated sidewalls can provide an efficient way to suppress the emission due to the leaking modes in these pillar microcavities.     

关于定义型阅读理解题

在近几年的中考试题中,经常出现按给出的定义来解相关问题的阅读理解题.这类题目对培养阅读理解能力和独立获取新知识、解决新问题的能力有十分重要的作用.下面就其类型及解法举例说明. 一、定义符号型