The OP07 is a precision operational amplifier with Ultra Low offset Voltage: 10uV for the OPO7A), input offset drift of 0. 2uv/C an Ultra Low Offset Voltage Drift0.2μ° put bias current of 0.7nA the wide inp o Ultra Stable vs. Time: 0.2u V/Month 110dB minimum(OP07A), plus high input Ultra L。wNo|e:035
The Conception of Theory of Strength 材料力学所研究的最基本问题之一—构件的强度问题。 由§1-1我们知道:构件的强度是指构件承受荷载的能力或构件抵抗 破坏的能力。在前面各章中,我们得到: 正应力强度条件:Omax≤[o]对应的应力状态为:0←口→>0 max 或:σ→□←σ<0 剪应力强度条件:Tmax≤[τ]对应的应力状态为:↑τ max 上述两个强度条件都是直接用相应的实验来建立强度条件的
We define the unit impulse as a function of time which is zero when its argument, generally (t-o), is less than zero; which is also zero when argument is greater than zero; which is infinite when its argument is zero; and which has unit area