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To improve the performance of image-denoising methods, a locally adaptive denoising algorithm was presented. The new algorithm assumed the statistical dependence among wavelet coefficients. First, a bivariate probability distribution model was introduced to model the statistics of wavelet coefficients, and corresponding nonlinear threshold function was derived from the model using the Bayesian estimation theory.

由于图像小波系数存在很大的层间相关性，引入双变量概率分布模型，基于贝叶斯估计理论，得到了相应的非线性阈值函数；基于层内局域方差估计，利用该收缩函数得到一种局域自适应的图像去噪算法。

Consider the dependencies between the coefficients and their parents, a non-Gaussian bivariate distribution is given, and corresponding nonlinear threshold function is derived from the model using Bayesian estimation theory. According to non-subsampled Contourlet transform and bivariate threshold function, a novel Non-Subsampled Contourlet Transform based on Bivariate threshold function for image denoising is proposed. This scheme achieves enhanced estimation results for images that are corrupted with additive Gaussian noise over a wide range of noise variance.

该文依据非下采样Contourlet分解系数与其父系数之间的相关性，给出非高斯双变量分布，对该模型应用Bayes估值理论推导得到相应的非线性双变量阈值函数，综合非下采样Contourlet分解和双变量阈值函数，提出一种基于双变量阈值的非下采样Contourlet变换图像去噪方法。

However, a drug known as Gaviscon , containing magnesium carbonate and alginic acid derived from bladderwrack, has been shown helpful for heartburn in a double-blind trial.

然而，药物称为Gaviscon ，含有碳酸镁和海藻酸来自bladderwrack ，已被证明有助于灼热的双盲试验。

Results The distal convoluted tubules derived from metanephric blastema expre...

另外集合管的2型H物质的表达与分泌状态无关。

Human embryonic stem cells are pluripotent cells derived from inner cell mass of blastocyst at early stage of human embryo.

人胚胎干细胞(human embryonic stem cells，hES cells)是一种从人类早期胚胎的内细胞团中分离出来的多能性干细胞。

A preparation that is derived from a culture of the fungus Blastomyces dermatitidis and is injected intracutaneously as a diagnostic test for blastomycosis.

芽生霉素从皮炎芽生菌真菌的培养中获得的制剂，作为芽生菌病的皮内诊治

In the long time duration of studying on Bluetongue Virus of Hubei China strain 3, BTV-HbC3, We noted that BTV-HbC3 could be propagated well in HeLa cell line, a cell line derived from human cervical carcinoma, and later, we found it can even infect some other cancer cells.

本研究室在对蓝舌病毒中国湖北株-3(BTV-HbC_3)长期的研究过程中，注意到BTV-HbC_3可以在HeLa细胞，一种来自于人类宫颈癌的细胞，中良好地增殖，而后进一步发现其可以感染其他一些恶性肿瘤细胞。

Bond and angle types are assigned based on (1) atom types,(2) bond lengths or bond angles in the QM optimised geometry and (3) matching force constants derived from the Hessian matrix.

键和键角类型标记，依据（1）原子类型（2）量子优化几何学中的键长或者键角（3）源于 Hessian 矩阵的合适的力常数。

Objective: To evaluate the effects of dendritic cells derived from bone marrow in the pathogenesis of asthma.

目的：研究哮喘小鼠骨髓来源树突状细胞的表型及共刺激分子在哮喘发病中的影响。

Almost all of the code in this chapter was derived from techniques introduced by Todd Yard in chapter 10 of Macromedia Flash MX Studio(friends of ED,2002),Todd is also the technical reviewer on this book, so it's not like I was going to sneak anything past him!

几乎本章所用的数码都是采自第10章Macromedia Flash MX Studio里面Todd Yard所介绍的技术。(Todd Yard也是本书的专业读者，我无意把他遗漏掉)。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。