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- negative selection mechanism 反面选择机理
- 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。
- 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。
- The context selection mechanism is extensible through custom attributes, also known as static context properties, which are compiled into the class metadata. 上下文选择机制可通过自定义属性扩展,而自定义属性也称为静态上下文属性,被编译成类元数据。
- The other purpose is to establish the comprehensive analysis model of enterpriser"s selection mechanism,incentive and disciplinary mechanism and enterprise efficiency. 公司治理结构的两个视角，其一是委托一代理理论；
- The pattern wheel select mechanism is restricted by many factors in the design of patterns,especially in the hexagonal patterns. 提花轮选针机构在设计花形时受到诸多因素的限制，尤其是六边形花纹。
- 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;
- For this reason, the government should make the "University Student Village Officer" role legalization, establish strict selection mechanism and implement scientific managerial system to build an upstanding growing environment. 为此，政府应该努力实现“大学生村官”角色的合法化，建立严格的选拔机制，实施科学的管理制度，创造良好的“大学生村官”成长环境。
- A recent genetic analysis of drosophila reveals a gene network that controls cell competition,and proposes that programmed cell competition act as a cell selection mechanism at the population level. 最近对果蝇进行的遗传分析,揭示了调节细胞竞争行为的基因网络,并提出了程序性细胞竞争作为群体水平的细胞选择机制。
- This paper analyzes the behavior selection problem of multi mobile robots formation, and proposes a behavior selection mechanism,this mechanism can realize the multi mobile robot formation. 针对多机器人在编队行进过程中的行为选择问题进行了分析,提出一种实现多移动机器人编队的行为选择机制。
- Dendritic cell and thymic negative selection 树突状细胞和胸腺阴性选择
- They comprise evaluation selectness mechanism > risk investment mechanism and talent training mechanism. 中观动力机制包括了评价选择机制、风险投资机制和人才培养机制。
- In this paper, negative selection algorithm for artificial immune system (AIS) is improved by adopting genetic algorithm, in which Euclidean distance is selected as fitness function, to generate detectors (antibodies). 摘要将人工免疫系统的反面选择算法作了改进，在产生检测器时，利用了遗传算法，并将欧几里德距离作为遗传算法中的适应函数。
- A enduring effect system of subject librarian is emphasized, and it includes train mechanism, select mechanism, continuing education mechanism, check mechanism and stimulus mechanism. 重点论述了学科馆员队伍的长效发展机制，包括培养机制、选拔机制、继续教育机制、考核机制、激励机制等。
- The DCs in the thymus have )been subdivided into two populations, lymphoid DCs and myeloid DCs.They can induce negative selection of effective T cells and positive selective of regulatory T cells. 胸腺中树突状细胞分为淋巴源性和髓源性,参与效应性T细胞的阴性选择和调节性T细胞的阳性选择过程。
- Both reinforcing audit and improving selecting mechanism have to be carried out, in order to stop state-owned enterprise's flam. 国企经营者隐瞒利润的根本动机是为了维护自身的地位，要解决国有企业说假话的问题必须同时从加强审计和改善选拔考核机制上入手。
- The principle of selecting mechanism, information interface, control circuit and real-time control software are dealt with. 讨论了其电子选针机构的工作机理、信息接口、控制电路以及实时控制软件；
- multi - level negative selection 多级否定选择
- This palette contains simple selection mechanisms and annotation devices that you can select and drop on the diagram. 这个选项板包括简单选择工具以及添加注释的设备,您可以在图表中选择或者取消它。
