正常人体甲状腺体表傅里叶红外光谱图的特征分析

应用傅里叶变换红外光谱仪(FTIR)并联合衰减全反射(ATR)探头经体表方式测定120名健康受试者的双侧甲状腺,由此获得240张正常人体甲状腺体表傅里叶红外光谱图;通过分析比较正常人体左右两侧甲状腺体表红外光谱12个谱带的峰位、相对峰强及半高宽等35个FTIR光谱参数以探讨双侧甲状腺体表红外光谱有无差异;同时明确甲状腺体表红外光谱中蛋白质、脂质、核酸和糖类等生物化学成分相应特征吸收峰的变异特征。结果表明：正常人体左右两侧甲状腺体表红外光谱图大体趋于一致,仅F_{1 640} P_{2 920} P_{1 040}和I_{2 920}/I_{1 460},4个光谱参数差别存在统计学意义;并计算得到一系列正常人体甲状腺体表傅里叶红外光谱特征谱带光谱参数的90%正常参考值范围及绘制出能充分代表正常人体甲状腺基本特征的标准平均红外光谱图,进一步为傅里叶变换红外光谱应用于临床甲状腺疾病诊断提供参考。     

代数体函数的唯一性问题

讨论了重值和Ｖａｌｉｒｏｎ亏量对代数体函数唯一性问题的影响，证明了两个唯一性定理．     

一类2连通（n,n＋2）图的色类

本文研究了围长为6的K_4同胚图的色性,对于其中的非色唯一图,给出了其色类。     

Uniqueness of the uniform norm and adjoining identity in Banach algebras

LetA _e be the algebra obtained by adjoining identity to a non-unital Banach algebra (A, ∥ · ∥). Unlike the case for aC*-norm on a Banach *-algebra,A _e admits exactly one uniform norm (not necessarily complete) if so doesA. This is used to show that the spectral extension property carries over fromA to A _e . Norms onA _e that extend the given complete norm ∥ · ∥ onA are investigated. The operator seminorm ∥ · ∥_op onA _e defined by ∥ · ∥ is a norm (resp. a complete norm) iffA has trivial left annihilator (resp. ∥ · ∥_op restricted toA is equivalent to ∥ · ∥).     

Banach空间中微分方程解的唯一存在性及对参数的连续依赖性

本文利用不动点定理，证明了Ｂａｎａｃｈ空间中具有不连续右端微分方程解的唯一存在性及对参数的依赖性。     

关于群的定义

群是基本的代数系统,群的定义对左(右)单位和左(右)逆元是成立的,而对左单位元和右逆元不一定成立。本文证明了群的定义对唯一左单位元和右逆元是成立的。     

Chromatic Uniqueness of K4-Homeomorphs with Girth 8

In this paper,we determine all graphs of K4-homeomorphs of girth 8 which are chromatically unique.     

Unique continuation for positive solutions of degenerate elliptic equations

We establish the strong unique continuation property for positive weak solutions to degenerate quasilinear elliptic equations. The degeneracy is given by a suitable power of a strong A_∞ weight (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)     

UNIQUE CONTINUATION AND PERSISTENCE PROPERTIES OF SOLUTIONS OF THE 2-COMPONENT DEGASPERIS-PROCESI EQUATIONS

In this article,the unique continuation and persistence properties of solutions of the 2-component Degasperis-Procesi equations are discussed.It is shown that strong solutions of the 2-component Degasp...     

On a Counterexample Concerning Unique Continuation for Elliptic Equations in Divergence Form

We construct a second order elliptic equation in divergence form in3, with a nonzero solution which vanishes in a half-space.The coefficients are -Hölder continuous of any order < 1. This improves a previous counterexample of Miller (1972, 1974).Moreover, we obtain coefficients which belong to a finer class ofsmoothness, expressed in terms of the modulus of continuity.