Case studies using Computational Fluid Dynamics (CFD) tool by unsteady RANS simulation are conducted on a subway station model as well as an aircraft cabin, in which case experimental validation is also conducted. The capability of the new method is verified for air contaminant source location ...
在加速寿命试验中如果使用电应力,如电压、电流、功率等作为加速一般服从逆幂律关系模型。逆幂律关系模型说明,元器件寿命与主要应力的幂成反比关系,参见公式。 式中,L为可量化的寿命,如平均寿命、特征寿命;V为应力,如电流、电压;K为模型中的需要被确认的系数之一;n为模型中的需要被确认的另一系数。 Coffin-Manson...
It consists of two models covering non-destructive sensing as canopy parameters prediction model and its inverse model as a simple vision model. This paper discussed building both models to monitor canopy parameters using experimental result, as an example of how micro-precision agriculture can be ...
The PEST++ software suite includes several stand-alone tools for model-independent (non-intrusive) computer model parameter estimation and uncertainty analysis. Codes include: pestpp: deterministic GLM parameter estimation using "on-the-fly" subspace reparameterization, effectively reproducing the SVD-Assist...
The advent of Grid computing has enhanced our capabilities to model and simulate complex systems arising in scientific, engineering, and commercial applica... Darema,F. - 《Proceedings of the IEEE》 被引量: 170发表: 2005年 Estuarine shoreline change detection using Japanese ALOS PALSAR HH and JE...
Inverse model-based algorithms have a great potential to solve such problems. Nonetheless, the existing ones have low precision for handling DMOPs with nonlinear correlations between the objective and decision vectors, which greatly limits the application of the inverse models. In this article, an ...
我们通过相机中的图像传感器阵列来记录场景中物体表面发出的光线的颜色(RGB)。因此图片中的每一个像素对应了三维空间中的一个点,而这样一个对应关系通过相机模型(Camera Model)来表达。相机模型有一系列相机参数,称为相机的内参(Intrinsic)。最为常见的就是针孔相机模型(Pin-hole),全景相机(Omnidirectional)等等。
如果我们把模仿学习中的专家策略轨迹当作真样本,然后通过生成对抗式训练去逼近专家策略呢?这就是GAIL。值得注意的是其中生成对抗训练的细节,生成器是某种策略搜索算法(TRPO,PPO或者model-based等等),用判别器对生成样本的分数log(D_{\phi}(s,a))作为回报。算法示意图和伪码如下:...
Prepare COMSOL Model: Set up time-dependent model in COMSOL. (Note: stationary models may work too, but this will require some creativity on your part). Ensure all parameters to be varied are defined as global "variables" (i.e. not "parameters"). ...
This chapter presents the rate-dependent hysteresis compensation of a piezoelectric nanopositioning stage using the feedforward control based on an inverse hysteresis model. Three different controllers are realized and compared, which employ Bouc–Wen model, modified Prandtl–Ishlinskii (MPI) model, and...