3) T cell subset
T细胞亚群
1.
Effects of vitamin E on interleukin and T cell subsets in the mice treated by 2,3,7,8-tetrachlorodibenzo-p-dioxin;
维生素E对TCDD染毒小鼠白细胞介素和T细胞亚群的影响
2.
The discussion on the levels of T cell subset and NK cell of the health full term delivery women and the newborns;
健康足月分娩母亲与新生儿T细胞亚群和NK细胞水平
3.
To analysis of the changes of T cell subset in patients with malignant tumors before and after chemotherapy;
恶性肿瘤患者化疗前后T细胞亚群变化临床分析
4) T lymphocyte subsets
T细胞亚群
1.
Changes of platelet parameter and of T lymphocyte subsets in children with Kawasaki disease;
川崎病患儿血小板参数与T细胞亚群的变化
2.
The change of peripheral blood T lymphocyte subsets and urine Interleukin-6 in patients of IgA nephropathy with tonsillectomy;
T细胞亚群、IL-6在IgA肾病患者扁桃体摘除术后的应用价值
3.
The level and clinic significance of T lymphocyte subsets in patients with esophageal and cardiac carcinoma;
食管癌、贲门癌患者T细胞亚群水平及临床意义
5) T cell subsets
T细胞亚群
1.
Changes of T cell subsets in maintenance hemodialysis patients;
维持性血液透析患者T细胞亚群变化
2.
Analyzing on the clinical symptoms and T cell subsets of patients with severe acute respiratory syndrome;
严重急性呼吸综合征患者临床症状和T细胞亚群Meta分析
3.
The effect of 5-fluorouracil and interferon alpha-1b on T cell subsets,NK cell and MG_7 antigen in perioperative patients with gastric carcinoma;
术前5-Fu联用IFN-α1b对胃癌T细胞亚群NK细胞与MG_7的影响
6) T cell subgroup
T细胞亚群
1.
Effect of Weikang capsule on T cell subgroup and changes of IL-2,IL-6 in blood and tissue in patients with gastric ulcer;
胃康胶囊对胃溃疡患者T细胞亚群及白细胞介素2和6水平的影响
2.
Objective:To analyze the relationship between variation of T cell subgroup in peripheral blood(PB) and pathogenesis and development of rheumatoid arthritis(RA).
目的:探讨类风湿关节炎(rheumatoid arthritis,RA)病人外周血T细胞亚群的变化与RA发病机制及疾病发生发展的的关系。
3.
The curative effect of two groups and the levels of the peripheral blood T cell subgroups and NK before and after radiotherapy 7d,15d,30d,45d were compared.
方法:将172例老年人NSCLC患者随机分为观察组(三维适形放疗,3DCRT)和对照组(常规分割放疗)各86例,比较两组患者的放疗效果和放疗前与放疗开始后7d,15d,30d,45d的T细胞亚群及自然杀伤细胞(NK)水平变化。
补充资料:AC-DC-AC-DC型开关稳压电路
AC-DC-AC-DC型开关稳压电路
AC-DC-AC-DC type switching voltage stabilizing circuits
对小功率的AC一DC一AC一IK!型稳压电路,可省去图中的集成驱动器,由集成控制器直接驱动。AC一DC一AC一】兀型稳压电路组成的开关电源及模块,广泛应用于通信和其他电子设备中作为一次电源用。AC DC ACDCx一rlg伙019七Jo了1 wenyod旧z〕JLJAC一OC一AC一OC型开关稳压电路(AC一DC一AC一IX二type switehing voltage stabilizingcircuits)将交流电压通过整流滤波电路及DC一〔X)开关变换器,并借助反馈环节得到稳定直流输出电压的开关型稳压电路。其原理方框图如图所示。图中输人和输出端都加有噪声溥波器。电容滤波的全波整流电路中,开机时有一大的充电电流流过整流管。为了削弱该冲击电流,在AC一DC一AC一IX{型稳压电路中加人软起动电路。又因电容滤波的整流电路中电流失真很大,使功率因数很低。为了提高功率因数,通常采用功率因数校正技术。90年代以前,采用无源校正技术,只能对基波进行相移补偿或抑制某些指定的谐波。实际应用中,还受到体积、质量、价格等因素的限制。9。年代普遍采用高频有源功率因数校正技术。图中的有源功率因数校正电路实质上是一种升压式有源功率因数校正(b oost一PFC)电路(见DC一DC型开关稳压电路)。它可将稳压电路的输入电流波形变换为与输入电网电压同相位的正弦波,变换效率可大于98%。这样,可以降低线路损耗,节约能源,减小电网的谐波污染。┌───┐ ┌────┐┌─────────┐┌──┐│NF │ ┌───┐│ pFC ││ OC~O(: ││ 哪││,噪声│ │_整流 ││功率因数││ 变换器 ││噪声││健波 │ └───┘│ 校正 ││(含高频整流及滤波)││滤波││ │ │ │└─────────┘│ │└───┘ └────┘ └──┘ ┌─────┐ │ SS │ ┌─────┐ │软起动 │ │集成驱动器│ │ │ └─────┘ └─────┘ ┌─────┐ │集成控制器│ └─────┘ AC一1)C一AC一1)C型开关稳压电路原理方框图
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条