Search results for " mac"

A Study on the Correlations between Machining Parameters and Specimen Quality in WEDM

1999

Wire electrical discharge machining (WEDM) is widely used in manufacturing, medical, aircraft applications and, virtually, all areas of conductive material machining. The process involves a series of very complex electrical, thermodynamical and electromagnetical phenomena that are still partially unknown. Due to the large amount of parameters involved in the process, a suitable set-up of the variables aimed to obtain the best performance is often very difficult. In the paper the results of a wide experimental analysis are presented: the tests were carried out on high-speed steel and tempered steel specimens utilising brass wires. The influence of the most important process parameters on the…

3D DCE-MRI Radiomic Analysis for Malignant Lesion Prediction in Breast Cancer Patients

2022

Rationale and Objectives: To develop and validate a radiomic model, with radiomic features extracted from breast Dynamic Contrast-Enhanced Magnetic Resonance Imaging (DCE-MRI) from a 1.5T scanner, for predicting the malignancy of masses with enhancement. Images were acquired using an 8-channel breast coil in the axial plane. The rationale behind this study is to show the feasibility of a radio-mics-powered model that could be integrated into the clinical practice by exploiting only standard-of-care DCE-MRI with the goal of reducing the required image pre-processing (ie, normalization and quantitative imaging map generation).Materials and Methods: 107 radiomic features were extracted from a …

Evolution of microbiological and chemical parameters during red wine making with extended post-fermentation maceration.

2014

Abstract The aim of the present work was to investigate the microbiological, chemical, and sensory characteristics of red wine subjected to post-fermentation maceration that was extended to 90 days. For this purpose, the ‘Aglianico di Taurasi’ grape was used as a case study. The total yeast concentration increased until day 40 of maceration and decreased thereafter, whereas the concentration of lactic acid bacteria slightly increased. Dekkera/Brettanomyces spp. and acetic acid bacteria were not detected. The yeast community was composed of Saccharomyces cerevisiae, Zygosaccharomyces bisporus, Metschnikowia pulcherrima, Hanseniaspora guilliermondii, Hanseniaspora uvarum, Pichia guilliermondi…

Une occupation du Bronze final et sa nécropole à Metz – ZAC du Sansonnet (Moselle). Un cas particulier de stabilisation d’un habitat.

2020

International audience

Back EMF Sensorless-Control Algorithm for High-Dynamic Performance PMSM

2010

In this paper, a low-time-consuming and low-cost sensorless-control algorithm for high-dynamic performance permanent-magnet synchronous motors, both surface and internal permanent-magnet mounted for position and speed estimation, is introduced, discussed, and experimentally validated. This control algorithm is based on the estimation of rotor speed and angular position starting from the back electromotive force space-vector determination without voltage sensors by using the reference voltages given by the current controllers instead of the actual ones. This choice obviously introduces some errors that must be vanished by means of a compensating function. The novelties of the proposed estima…

Automotive Brushless Motor Powered by Fuel Cell

2014

Demand side management and Distributed on Site actions benefits

2013

Global warming and energy demand are nowadays becoming one of the major issues of the third millennium, mainly because human activities seem to have a clear impact on the raise of CO2 emissions as never it has been experienced in the past. Among the different factors affecting CO2 emissions, energy demand from buildings constitutes one of the most important actors. Energy Management (EM) actions can reduce the energy consumption of the system and minimize peaks-level, by using a distributed control over every house. These local actions can greatly contribute to reduce the impact on the global CO2 emissions. An evaluation of the potential energy saving and CO2 emissions reduction on building…

Business Modelling. Languages and Tools

2004

The paper provides an overview of business modelling techniques — both at language and tool level. The basic elements of some most popular business modelling languages are briefly outlined, including the GRAPES-BM language developed by IMCS, University of Latvia. The paper presents also the basic principles, how metamodel based generic modelling techniques can be used for supporting several modelling notations simultaneously.

Bíblia. A.T. Macabeus. Llatí

Ms. il·luminat Títol donat pel catalogador Col·lació: Vitel·la, f. iii (paper) + 83 + ii (pergamí) + iii (paper) ; numeració moderna a llapis Composició: Text de la Bíblia i dels comentaris en columnes, amb nombre de línies variable Escriptura: Gòtica textual Decoració: Caplletres decorades. Calderons, titolets i majúscules alternant tintes de color blau i vermell Enquadernació: Original, pell marró sobre fusta, amb ferros freds. Al centre, amb ferros daurats, l'escut d'armes del duc de Calàbria entre florons; hi manquen els fermalls originals. Cantells acolorits en porpra. Al llom, amb ferros daurats es llegeix, en majúscules: "Machab" Origen: Escrit probablement a França, en la segona mei…

Bíblia. Profetes menors. Llatí

Ms. il·luminat Títol assignat pel catalogador Col·lació: Vitel·la, f. i (pergamí actual) + iii (paper) + xxx (en blanc el f. 97v, 156v) + iii (paper) i (pergamí actual) ; numeració moderna a llapis Composició: Text de la Bíblia i dels comentaris en dues i tres columnes i a línia tirada amb nombre de línies variable. Pautat amb mina de plom Escriptura: Gòtica textual cal·ligràfica Decoració: Caplletres minades i decorades, calderons i titolets alternant tintes de color blau i vermell Enquadernació: Restaurada, plateresca, pell verda sobre fusta, amb ferros freds. En la coberta anterior, amb ferros daurats, l'escut d'armes del duc de Calàbria entre florons; hi manquen els fermalls originals. …