说明:双击或选中下面任意单词,将显示该词的音标、读音、翻译等;选中中文或多个词,将显示翻译。
您的位置:首页 -> 词典 -> PID-SOD
1)  PTD-SOD
PID-SOD
2)  superoxide dismutase(SOD)
SOD
1.
Method: To determine changes on hepatic and intestinal glutathione (GSH), superoxide dismutase(SOD), glutathione peroxidase(GSH-PX), malondialdehyde(MDA),alanine aminotransferase(ALT)and myeloperoxidase(MPO)by nucleotides free (NF) and nucleotides (NT) diet mice under lipopolysaccharide (LPS) induced oxidative response.
方法:用脂多糖(LPS)构建氧化应激模型,检测外源核苷酸对小肠组织中谷胱甘肽(GSH)、超氧化歧化酶(SOD)、谷胱甘肽过氧化物酶(GSH-PX)、一氧化氮(NO)、丙二醛(MDA)、丙氨酸氨基转移酶(ALT)以及髓过氧化物酶(MPO)的变化。
2.
Methods 99 male attendees at local CDC divided into smoking(43) and non-smoking(56) group were examined serum concentration of Intercellular adhesion molecule-1(ICAM-1),Vascular endothelial adhesion molecule-1(VCAM-1),Superoxide dismutase(SOD),Total antioxidative capacity(T-AOC) respectively.
方法在2005年4~6月到某疾病控制中心体检的符合纳入标准的对象中随机抽取99名男性,调查其吸烟情况后根据分组标准分为:吸烟组43人,对照组56人,并分别检测其血清中可溶性细胞间粘附分子(sICAM-1)浓度、可溶性血管细胞粘附分子(sVCAM-1)浓度、超氧化物歧化酶(SOD)的活力及总抗氧化能力(T-AOC)水平。
3.
By means of fumigating two years old seedlings in open top chambers,this paper studied the effect of automobile exhaust on proline content,relative conductivity,malondialdehyde content(MDA) superoxide dismutase(SOD) activity and peroxidase(POD) activity,in the seedlings foliage of four tree species Buxus sinica Cheng,Aesculus chinensis Bunge.
结果表明:随着处理浓度的增加,4个树种叶片各指标变化模式不同,SOD、POD酶活性变化趋势相似,均先上升后下降;MDA和相对电导率的变化趋势均整体上升,说明尾气对质膜造成了伤害;脯氨酸含量的变化未表现出规律性。
3)  superoxide dismutase
SOD
1.
Theoretical study on active sites of natural iron-containing superoxide dismutase;
FeSOD天然酶活性中心的理论研究
2.
Advanced oxidation protein products in diabetic nephropathy patients and its relation with superoxide dismutase,glutathione peroxidase,neopterin;
糖尿病肾病患者AOPP与SOD,GPx,NPT的关系
3.
Changes of serum superoxide dismutase and lipid peroxide levels in pneumonia children and their clinical significance;
肺炎患儿血清SOD和LPO水平的变化及其临床意义
4)  MDA
SOD
1.
Significance of Changes of SOD and MDA in Rabbits Protected by Vitamin C,Vitamin E From Injured by Irradiation;
MDA和SOD在VC、VE对~(60)Co照射家兔作用中的变化意义
2.
Effects of Geranium sibiricum L. on MDA content and SOD activity in intestinal mitochondrion of the diarrhea mice;
鼠掌老鹳草对腹泻小鼠肠线粒体MDA含量和SOD活性的影响
3.
Biochemistry indexes of neck artery blood, apoptosis and malondialdehyde (MDA) content, activities of SOD and GSH-Px in hepatocytes were measured.
将样品掺入饲料中喂养90d后,取颈动脉血检测生化指标,取肝脏检测肝细胞凋亡及丙二醛(MDA)含量、超氧化物歧化酶(SOD)和谷胱甘肽过氧化物酶(GSH-Px)活力。
5)  SOD activity
SOD
1.
The two relatively stable metabolic phases,starvation adapting metabolism zone and survival metabolism zone were observed in 2~4 days and 8~10 days,in which SOD activity decreased significantly.
结果表明,日本沼虾代谢率在饥饿处理的2~4 d和8~10 d分别出现2个相对的代谢稳定区,即饥饿适应代谢区和饥饿存活代谢区,SOD比活力在饥饿处理期间显著下降。
2.
The effects of several pesticides on SOD activity in different rice varieties were studied.
研究了几种农药处理后对不同水稻品种SOD活性的影响。
3.
The index of immune organs,proliferation of mice spleen lymphocyte in vitro,hemolysin content in serum,antibody-producing cell of spleen,anti-oxidation index,SOD activity and MDA content of serum in mice were carried out.
分别测定了脏器指数,脾细胞增殖实验,血清中溶血素和抗体生成细胞的含量以及小鼠血清总抗氧化能力、SOD活力和MDA含量。
6)  PID control
PID
1.
Fuzzy auto tuning PID control strategy for the test system of themobile dynamometer vehicle;
负荷车试验系统的模糊自适应PID控制
2.
An adaptive PID control algorithm based on neuron is proposed, aimed at characters in gas collector pressure of coke oven.
针对焦炉集气管压力系统的特点,提出一种基于神经元的自适应PID控制算法;将神经元与PID结合,在线调整PID参数;对单神经元自适应PID控制器进行了研究,并利用Matlab/Simulink进行了仿真,结果表明单神经元自适应PID控制算法明显优于常规PID控制算法;用本文提出的单神经元自适应PID控制器控制焦炉集气管压力,使集气管压力系统的抗干扰能力得到提高,取得了良好的控制效果。
3.
This article made a Study of the control system of electro-optical tracker,analyzed the shortness of the digital PID controllers using at the control system of electro-optical tracker,and putforward a self-adaptive PID controller which fits the control system of electro-optical tracker very well.
通过对光电跟踪系统的伺服控制系统的研究,分析了常用数字PID控制算法在光电跟踪系统中应用的不足,提出了适用于光电跟踪系统的自适应的PID控制算法,试验表明自适应PID控制算法比数字PID控制器超调量小,调节时间短,提高了控制系统实时性和抗干扰能力。
补充资料:discrete PID control algorithm
分子式:
CAS号:

性质:在用计算机等作为控制装置进行数字控制时实现PID控制作用的数学表示式。在数字控制中,控制装置只取各个采样时刻的输入变量值进行运算,如偏差值e(k)为第k个采样时刻的设定值r(k)与被控变量测量值y(k)的差值。离散PID控制有位置算法、增量算法与速度算法三种形式。(1)位置算法直接给出各采样时刻的控制作用量2J(是),具体算法是:式中,Kc为比例增益,Ti为再调时间,Td为预调时间,Δt为采样周期。这里用叠加代替积分,差分代替微分。位置算法的输出可直接送往数字式执行器,或经数字/模拟转换送往模拟式执行器,并须用保持器将该信号保持到下一次采样为止。在手动一自动切换和防止积分饱和问题上,位置算法不像另两类算法那样方便。(2)增量算法给出每个采样时刻控制装置输出应改变的数值Δu(k),即第k个采样时刻的控制作用量u(k)与前一采样时刻的控制作用量u(k-1)之间的差值,具体算法是: 增量算法的输出一般通过步进电机等累积机构,化为模拟量,操纵控制阀。该种算法具有手动一自动切换方便,和避免引起积分饱和等优点,应用最广。(3)速度算法给出在各个采样时刻控制装置输出应采取的变化速v(k),该速度用Δu(k)/Δt近似表示,具体算式为:速度算法的输出应送往积分式执行机构。速度算法也有手动一自动切换方便和避免引起积分饱和的优点。

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