免疫系统

The key to feature extraction is to select the optimal feature combination from all the features. In this study, the optimal color feature combination,{/G,(R+4G+B)/6, H variance, S variance}, is selected using genetic neural network at first. Then the main texture features including the mean, variance, energy and entropy of the cooccurrence matrix, the secondary texture features including the maximum frequency number, absolute uniform, inertia and importance of the co-occurrence matrix are extracted.

在此基础上，提出适合多阈值和小目标图像分割的免疫遗传图像分割方法，该方法借鉴了生物免疫系统自调节、抗原识别和记忆功能，并结合了遗传算法对图像进行自适应区域的阈值分割，改善了遗传算法优化复杂问题时存在收敛速度慢和易陷于局部最优的不足，克服了传统阈值分割方法对目标大小的限制，是一种新型的有效的图像分割方法。

ACIs are uniquely designed to stimulate a patient's own immune system to fight cancer.

活性细胞免疫疗法独特的设计，刺激患者自身免疫系统对抗癌症。

Introduction: Self tolerance is regarded as the anergy condition for the immune system to self antigens.

前言 自身免疫耐受是指机体免疫系统对自身抗原的无应答状态。

The causes of this disease involve by an abnormality in the immune system, which leads to autoimmunity.

的原因，这种疾病涉及的异常免疫系统，从而导致自身免疫。

But sometimes the immune system can't tell the difference between self and oneself, resulting in autoimmunity.

但是免疫系统有时不能说出自已和细菌之间的差别，造成自体免疫。

Has twoway regulat-ing action to central nerve system, cardio-vascular system, blood system, immune system, incretion system, urinary system, etc.

对中枢神经系统、心血管系统、血液系统、免疫系统、内分泌系统、泌尿系统等具有双向调节作用。

In the height of system theory, the paper presents enterprise life system structure, identification system, motivity system and immunity system, forms an integrity and preciseness structure. Around the topic of enterprise lifecycle system, the view of enterprise lifecycle system management combines biology character, economy character and system character of enterprise. It has a largish different to current research results. These are just the innovative viewpoints of the paper.

论文站在系统论的高度，提出企业生命周期系统结构、识别系统、动力系统和免疫系统，并围绕着企业生命周期的核心概念层层展开，前后衔接，形成完整严谨的体系，综合了企业的生命特性、经济特性和系统特性，相对当前有关企业生命周期的研究成果具有很大不同和进步，这也正是其创新性所在。

It does this by combining three layers of protection: Live Protection provides 14 real-time agents that guard your system - blocking spyware threats before they infect your PC; System Scanning scans your PC for infections and eliminates them fast - typical scans take only minutes to complete; System Immunization actively immunizes your system against thousands of known threats so you can surf the web safetly.

它是通过相结合的三个层次的保护：生活保障提供了14实时代理商保护您的系统-拦截间谍软件威胁之前，他们感染您的P C系统；扫描，扫描您的电脑感染，并消除他们快-典型的扫描采取只需要几分钟的时间，以完成；免疫系统积极immunizes您的系统对数以千计的已知威胁，让您可以在网上冲浪safetly 。

The present research indicated that there were obvious changes in the morphology, structures and proportion of populations of haemocyte by pearl-nucleus-inserting operation in visceral mass, which implied immune defense was enhanced after the operation, and the granulocyte played an important role in immune system.

研究表明，作为三角帆蚌免疫系统重要组成部分的血细胞，在插核手术后，其类型、形态结构和数量均产生明显变化，这是机体对外界刺激产生的免疫防御反应，其中颗粒细胞担负着主要的免疫功能。

Due to its enormous regulating function in immune system, IFN-γis a necessary composition in eliminating pathogen by organisim. Accordingly, IFN-γplays an important role in the aspects of diagnosis, therapy and detecting vaccine effect and it is one of the hot spots in the modern molecular biology, immunology and clinical medicine research.

由于IFN-γ对机体免疫系统具有极大的调节作用，是机体发挥免疫功能，清除体内病原体不可缺少的成分，因此，IFN-γ在疾病的诊断、治疗和疫苗免疫效果检测等方面起着重大作用，是现代分子生物学，免疫学和临床医学研究的热点之一。

Do not gum up the work by telling mother what we are going to do .

别告诉母亲我们要干的事，那会把事情搞糟的。

In recent years, application of the partial prestressed concrete beam s is developed.

近年来，随着部分预应力砼梁应用的推广，发现我国规范所采用的名义拉应力法的计算结果不稳定。