Căutare Scientific papers - Annals of "Dunarea de Jos" University of Galati - Analele științifice ale Universității "Dunărea de Jos" din Galați după Titlu
Afișează articolele 1100-1119 of 1845
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On the Potential of Using Fractional-Order Systems to Model the Respiratory Impedance
("Dunarea de Jos" University of Galati, 2006)This contribution provides an analysis of the human respiratory system in frequency domain by means of estimating the respiratory impedance. Further on, analysis of several models for human respiratory impedance is done, ... -
On the Prediction of the Strip Shape in a Cold Rolling Mill (1700 mm)
(Universitatea "Dunărea de Jos" din Galaţi, 2008)In this paper is shown a new way for predicting the precision of laminated strip in a cold rolling mill (1700 mm). The increasing demands on the quality of rolled strip; need new technology for monitoring the strip shape, ... -
On the Product-Time and Cost Estimation in the Market-Manufacturing System
(Universitatea "Dunărea de Jos" din Galați, 2010)This paper presents a product time and cost estimation method taking account the market dynamics and manufacturing system competitiveness. The method is based on the behavioral modeling using on-line unsupervised learning. ... -
On the Relationship between Export Activity and Size
("Dunarea de Jos" University of Galati, 2009-06)Together with the general and sector environment and various internal factors, firm size is one of the main groups of factors determining export activity. However, few works have examined this aspect, with the studies ... -
On the Rheological Behaviour of the soil in the Artificial Compacting Process
(Universitatea "Dunărea de Jos" din Galați, 2008)The artificial compacting of the soil is made mostly with machines with dynamical action such as vibrating plate, vibrating beater or vibrating drum. Their effect on the compacting process of the soil has two origins: the ... -
On the Snubber Influence to the Switching and Conduction Losses in a Converter Using Switched Capacitor
("Dunarea de Jos" University of Galati, 2002)The paper deals to design and to compute the snubber parameters influence on the switching and conduction losses of the transistors (IGBT) used as bidirectional switches in a converter with switched capacitor. The converter ... -
On the Stresses and Deflections Calculus in Bending the Cylindrical Naturally Twisted Bars, with Constant
(Universitatea "Dunărea de Jos" din Galați, 2011)The present paper deals with some aspects of the stresses and deflections calculus in case of the cylindrical, naturally twisted bars, with constant pitch, on the basis of assumptions on the linear-elastic behavior of ... -
On the Use of Approximate Numerical and Analytical Methods in Order to solve the Differential Equations that Describe Vibrations of the Mechanical Systems
(Universitatea "Dunărea de Jos" din Galați, 2012)The paper makes a comparative study on the approximation errors of the solutions of the differential equations of second order using different numerical methods, a study which is assessed by the necessity of numerical solving ... -
On Tribological Behaviour of Thermo-Chemical Treated Steels after Thermo-Magnetic Treatments
(Universitatea ”Dunărea de Jos” din Galați, 2008)The paper presents an analysis on two grades of steel, subjected to nitrocarburized or nitrided thermo-chemical treatment after different thermomagnetic treatments. Based on the concept of tribosystem, pairs of steel rollers ... -
On Viscosity Variation with Temperature of Rapeseed Oil After Different Processing Stages
(Universitatea ”Dunărea de Jos” din Galați, 2009)In recent years, vegetal oils are carefully studied as they may constitute a category of basic raw materials for obtaining organic biodegradable lubricants. Rapeseed oil is seen as an alternative of mineral and synthetic ... -
On-Line Assessment of the Manufacturing Systems Copettiveness
(Universitatea "Dunărea de Jos" din Galați, 2011)A company is competitive on a certain market when it succeeds in reaching, up to an acceptable level, some economic indicators: turnover, profit, market share comparable or superior to that of other competing companies ... -
Open-Loop control of a Bipolar Stepper Motors Using the Specialized Integrated Circuits
("Dunarea de Jos" University of Galati, 2004)The paper describes the open-loop control of a stepper motors. Bipolar stepper motors can be driven with an L297, an L298N bridge driver and very few external components. With an L298N this configuration drives motors with ... -
Operating Cash Surplus Determinations
("Dunarea de Jos" University of Galati, 2009-06)The paper defines the concept of operating surplus. Then, it is compared to the gross operating surplus and the differences are identified. The two calculation methods are presented next: (1) operating revenue less ... -
Operation Earning Power Modelling of the Manufacturing Process
(Universitatea "Dunărea de Jos" din Galați, 2012)In order to better represent the specified goal of the manufacturing process we propose (as a novelty) as a criterion the Earning Power (EP). It is both synthetic (because it reflects the essential motivation of the ... -
Opportunities to Improve the Competitiveness of Romanian Organizations
(“Dunarea de Jos” University of Galati, 2013)Competitive organizations are permanently prepared to identify the cutting-edge technologies which will change the future in business by using the concept of Business Intelligence. Moore's paradigm was a visionary model ... -
Opportunity Analysis for Developing a Micropayment System in Local Area Networks
(Europlus Galati, 2012-03)Although transactions with small amounts of cash are simple and quick, they still present drawbacks. The main issue is to drastically reduce costs for very small electronic payments and solutions have already started to ... -
Optimal Coding for Qualitative Sources on Noiseless Channels
("Dunarea de Jos" University of Galati, 2006)In this paper we perform the encoding for sources which are only qualitatively characterized, that is, each message the source delivers possesses a certain quality, expressed as cost, importance or utility. The proposed ... -
Optimal Control Development System for Electrical Drives
("Dunarea de Jos" University of Galati, 2008)In this paper the optimal electrical drive development system is presented. It consists of both electrical drive types: DC and AC. In order to implement the optimal control for AC drive system an Altivar 71 inverter, a ... -
The Optimal Control for D.C. Position Drive System
("Dunarea de Jos" University of Galati, 2007)A position drive system with D.C. motor is operated using conventional position, speed and current controls. These controls provide a good dynamic and steady-state behaviour, but they do not take in consideration the ...
