This paper presents some relevant results of a novel variant of the Backpropagation Algorithm to be applied during the Multilayer Perceptrons learning phase. The novelty consists in a weighting operation when the MLP learns the weights. The purpose is to modify the Mean Square Error objective giving more relevance to less frequent training patterns and resting relevance to the frequent ones. Th...

In recent years virtual reality technology has been extensively applied to the areas relating to manufacturing, such as factory layout planning, manufacturing planning, operation training, system testing, and process control, etc. Most of the studies made in the past focused on the simulation and monitoring of the entire manufacturing system, or the simulation of working schedule implementation...

Retrospective analysis of patient records from two 1st Battalion, 7th Special Forces Group combat rotations in Operation Enduring Freedom reveals a high volume of medical activity over a wide range of medical issues managed by Special Forces Medical Sergeants (MOS 18Ds). The initial training curriculum for 18Ds has been modified to provide graduating 18Ds with a refresher course and updated cre...

Background Endometriosis is a complex disease with a spectrum of pain symptoms from mild dysmenorrhea to debilitating pelvic pain. There is no concrete evidence in the literature whether endometriotic cyst per se, causes pain spectrum related to the disease. The aim of the present study was to evaluate the effect of surgical removal of endometriomas on pain symptoms. MaterialsAndMethods In this...

OBJECTIVES To explore the role that virtual reality training might play in the learning curve of laparoscopic varicocelectomy. METHODS A total of 1326 laparoscopic varicocelectomy cases performed by 16 participants from July 2005 to June 2012 were retrospectively analyzed. The participants were divided into 2 groups: group A was trained by laparoscopic trainer boxes; group B was trained by a ...

in many active noise control (anc) applications, an online secondary pathmodelling method that uses a white noise as a training signal is required. this paperproposes a new feedback anc system. here we modified both the fxlms and thevss-lms algorithms to raised noise attenuation and modelling accuracy for theoverall system. the proposed algorithm stops injection of the white noise at theoptimum...

BACKGROUND Operation planning in liver surgery depends on the precise understanding of the 3-dimensional (D) relation of the tumor to the intrahepatic vascular trees. To our knowledge, the impact of anatomical 3-D reconstructions on precision in operation planning has not yet been studied. HYPOTHESIS Three-dimensional reconstruction leads to an improvement of the ability to localize the tumor...