This paper describes the development and evaluation of neural network-based systems for industrial welding process control and weld quality assessment. The developed systems utilize recurrent neural networks for process control and both recurrent networks and static networks for quality prediction. The first section describes a system capable of both welding process control and real-time weld q...

Recently, we have uncovered Hidden Cooling Flows (HCF) in the X-ray spectra of central Brightest Galaxies 11 clusters, 1 group and 2 elliptical galaxies. Here report such flows a further 15 objects, consisting 8 3 groups, ellipticals Red Nugget. The mass cooling rates are about Msun/yr ellipticals, to 20 groups 100 regular clusters. Nugget, MRK1216, has an HCF 10 Msun/yr. We review fate cooled ...

A quark nugget is a hypothetical dark-matter candidate composed of approximately equal numbers up, down, and strange quarks. Most models nuggets do not include effects their intrinsic magnetic field. However, Tatsumi used mathematically tractable approximation the Standard Model Particle Physics found that cores magnetar pulsars may be in ferromagnetic liquid state with surface field Bo between...

This study represents simulation of single spot and multi spot welded specimen by using Monte carol method i.e. Latin hypercube sampling. A three dimensional nonlinear finite element analysis of multi-spot welded lap shear specimen is performed and uncertainty in shear strength of spot weld is analyzed. Thickness and nugget radius are randomly varied within effective range and their effect on t...

Geostatistical simulations are used to perform a global sensitivity analysis on a model Y = f(X1 ... Xk) where one of the model inputs Xi is a continuous 2D-field. Geostatistics allow specifying uncertainty on Xi with a spatial covariance model and generating random realizations of Xi. These random realizations are used to propagate uncertainty through model f and estimate global sensitivity in...