您要查找的是不是：
- negative selection model 负选择模型
- Click Select Model on the Mining Model table. 在“挖掘模型”表中,单击“选择模型”。
- Click Select Model, expand Targeted Mailing, and then choose TM Decision Tree. 单击“选择模型”,展开“目标邮件”,再选择TM Decision Tree。
- Because thymic dendritic cells are the potent antigen presenting cells in the thymus, they must play an important role in thymic negative selection. 胸腺树突状细胞作为胸腺内功能强大的抗原呈递细胞,在阴性选择中必定发挥着不可忽视的作用。
- During breeding for vertical resistance, horizontal resistance tends to decline because of negative selection pressure. 当培育垂直抗性时，由于负的选择压力，水平抗性趋于下降。
- This article try to quote the adverse selection model to establish an optimal underwrite mechanism. 本研究尝试以契约理论中的逆选择模型，创建一个最适的承销契约机制。
- The process of thymic negative selection is the process of the central immunologic tolerance, namely the process of autoreac-tive thymic cells being deleted or becoming allergy. 胸腺内阴性选择的发生过程也就是中枢免疫耐受的形成过程,即自身反应性胸腺细胞被克隆清除或处于免疫无能状态的过程。
- An algorithm based on inverse matrix for mean variance portfolio selection model is proposed. 介绍均值方差资产组合选择模型的一种以逆矩阵为基础的算法。
- Global attractivity in a genotype selection model, International Journal of Math 2002年11月22日,():. 李小平中立型时滞微分方程的渐近稳定性;数学物理学报2002年11月;():.
- Applying adverse selection model to analyze USO and entry regulation under comparative competition is (are) the focus of this paper. 3论文通过建立逆向选择模型，着重研究在当前医疗服务市场不具备完全竞争条件时的有关规制问题。
- First, the paper disserts the theory of supply chain and coorperating partners, which is the basis for constructing the selection model and methold. 首先，本文分析了供应链与供应链合作伙伴理论，以此作为后续供应链伙伴选择模型和方法的背景。
- Through positive and negative selection, the thymocytes with high avidity for self peptide-MHC complex were eliminated, but retained low but significant reactivity for self-peptides. 近年有关外周T细胞群体存活与稳态的深入研究发现:抗原活化前T细胞的存活需要自身肽MHC复合物的作用以提供适度的存活信号;
- Every year they would select model workers, and each one would wear a large red corsage on his chest. 每年都会评选劳动模范，每个人胸前还戴上一朵大红花。
- A new portfolio selection model is proposed on the basis of a new portfolio selection theory, namely the maximin theory. 摘要在一种新的投资组合选择原理-极大极小原理的基础上，提出了一种新的投资组合选择模型；
- So a portfolio selection model based on fractal distribution with market friction is established by using the improved LPM method. 基于分形分布用改进的下方风险法(LPM)度量投资组合的风险，构造了考虑市场摩擦的投资组合模型。
- Chapter Three introduces the construction of example base and semantics pattern base,which are the main data resources of the lection selection model. 第三章花了大量篇幅集中介绍了支持选词的数据资源之构建情况，包括实例库的构建和语义模式库的构建。
- Hou Chengqi.A Study on Portfolio Selection Model on Condition of Non-normal Distributions[D].Dr.Degree's Thesis of Wuhan University,2005. [2]侯成琪.;非正态分布条件下的投资组合模型研究[D]
- In the activity to select model workers through public appraisal, he became an publicly acknowledged model worker. 在这次评模活动中，他成了大家公认的模范。
- The conclusions of empirical research show that our OWA portfolio selection model has much research value in both theory and practice. 实证的结果表明我们提出的序权平均集结组合投资模型既有理论意义又有实际价值。
- Abstract: To improve the efficiency of targeted gene replacement (TGR), a dual screen (DS) system with gusA gene as negative selective marker (GUS-DS) was developed in Magnaporthe oryzae. 摘 要: 目标基因替换是基因功能研究的重要方法, 在生物工程领域广泛应用。
