The microsystem is small and light , which can receive the identifying result in 100 meters , and can be used widely . it can be used in many kinds of situation to distinguish the targets , and have the ability of prewarning 该系统体积小、重量轻,可以在100米之内接收到识别信号,并且应用广泛,适用于多种场合下的目标识别,可以起到预警作用。
Dendritic cells ( dc ) is the most powerful apc , which can markedly increase the antigen - presentation capacity by maximizing the pepitide - mhc complexes on the cell surface and upregulating the co - stimulatory ligands b7 - 1 and b7 - 2 , adhesion moleculees such as il - 12 that promote full activation of lymphocytes . full activation of antigen - specific t cells requires two signals - one signal coming via the tcr and the other signal through engagment of co - stimulatary molecules . t cells receiving one signal via their tcr are turned off by mhc ( major histocompatibility complex ) , via t cell cd28 binding to b7 on the dc induce tlymphokine and t cell proliferatiion T细胞介导的细胞免疫在控制肿瘤生长方面发挥着重要作用, t细胞在发挥抗瘤效应(分泌细胞因子和直接杀伤)之前必须先经过活化,体内专职抗原提呈细胞( apc )细胞并使其活化,树突状细胞( dendriticcell , dc )为t细胞的激活提供双重信号, t细胞借助tcr识别由dcmhc分子递交的抗原肽后,通过tcr - cd3复合体传递抗原特异性识别信号(第一信号) ,以cd28为主的t细胞表面辅佐分子识别dc表面b7分子,传递非特异性协同刺激信号(第二信号) ,在机体抗肿瘤免疫应答中处于核心地位。
The time - scale amplitude plot and phase plot based on hermitian wavelet transform are presented to singularity detection of signal . the corresponding relation relation between singularity and amplitude plot or phase plot is created . as successful application , fault of axletree damnify is found by means of this method 提出了基于hermitian小波变换的时间?尺度幅图和相图来识别信号奇异性的方法,建立了信号奇异点与幅图和相图的对应关系,在轴承损伤故障诊断中取得了成功的应用。