An aeroelastic metamodel was designed and implemented for prediction of flutter speed and frequency of swept rectangular wings based on experimental data and artificial neural networks (ANN).The ANN is a supervised multilayer perceptron that was trained based on an experimental data set involves flutter characteristics of various Hat cantilever rec
Horizontal wells open hole staged fracturing technology has become an important technology of horizontal well increase production.The ball seat is an important part of the whole process, directly related to the effect of fracturing.Established a geometric model for the horizontal open hole staged fracturing ball seat, used FLUENT ELP IM Combo Modul
Abstract Background Atrial fibrillation (AF) is the most common arrhythmia with poorly understood mechanisms.We aimed to investigate the biological mechanism of AF and to discover feature genes by analyzing multi-omics data and by applying a machine learning approach.Methods At the transcriptomic level, four microarray datasets (GSE41177, GSE79768,
If a turbine loses its electrical load, it will rotate freely and increase speed, eventually achieving that rotational speed which produces zero net torque.This is known as a runaway situation.Unlike many other types of turbine, a marine current turbine will typically overshoot the final runaway speed before slowing Toy Stuffing down and settling a