equation of time n. The difference between time measured from the observed position of the sun and time measured from the position of the mean sun, caused by changes in the earth's orbital speed through the cycle of the seasons. It is the difference between time measured with a sundial and...
求翻译:the equation means that distance is proportional to speed是什么意思?待解决 悬赏分:1 - 离问题结束还有 the equation means that distance is proportional to speed问题补充:匿名 2013-05-23 12:21:38 方程意味着距离与速度成正比 匿名 2013-05-23 12:23:18 这意味着,距离公式是比例,速度 ...
pmo is the amplitude of the pressure wave, r is the radial distance from the center of the pipe to any point, a is the radius of the pipe, z is the distance along the pipe, ω is the radian frequency, and t is time. γom and αom are related by the following formula: γom=k2...
depending only upon the distance r=|x→|. These are called spherical waves. They are solutions of the equation (1.55)−1c02∂2Φ∂t+1r2∂Φ∂r(r2−∂Φ∂r)=0 By the function change Φ(r, t) = f(r, t)/r, one obtains the classical one-dimensional wave equation (...
aWhen the transport distance is 800~1400 km, the high-speed railway has a strong alternative with the air transport. In the research of competition among various transport modes, it is a relatively mature approach that Logit equation analyze contribution rate of passenger flow (the market share ...
Each element of the two sets can be characterized by the parameter k and a small positive constant \(\epsilon \), which describes the distance of the trajectory to the separatrix. The two parameters can be chosen to adjust the efficiency, the robustness and the time of the control process...
GC17.5 Extending Equation-based Congestion Control to High-Speed Long-Distance Networks: Smoothness AnalysisXu, L.GLOBECOM -NEW YORK-
Here, the parameter σ is called the Courant number, which physically represents the ratio of the distance that a numerical disturbance is transmitted in the time Δt over the mesh size Δx. The stability condition in Eq. (11.77a) is satisfied if the amplitude of any error component En doe...
The main concept of Penne’s equation is that if the blood temperature is equal to the normal temperature of the blood in the aortic flow over the tissues at a specific speed, a thermal balance occurs, and afterward, the temperature collects in the veins. Thereafter, the blood perfusion ...
time periods is large enough and thus the number of complete spells is large relative to the number of incomplete spells, then the estimation procedure described in the previous section will produce a consistent estimate of θ∗.7 But in general, panel datasets are short on the time dimension...