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Afișează articolele 1906-1925 of 2993
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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 ... -
Opera lui I. L. Caragiale - de la gazetărie la literatură
(Universitatea "Dunărea de Jos" din Galaţi, 2013) -
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 ... -
Operațiunile militare și regimul de ocupație al puterilor centrale în Judetul Brăila (1916-1918). Perspectiva surselor germane. Volumul I
(Universitatea "Dunărea de Jos" din Galați, 2018)Interesul istoricilor români și străini pentru scrierea unor lucrări despre participarea României la Primul Război Mondial este în creștere în ultimii ani, mai ales datorită apropiatului Centenar. Avem astăzi la dispoziție ... -
Operațiunile militare și regimul de ocupație al puterilor centrale în județul Brăila (1916-1918). Perspectiva surselor germane : Volumul I
(Universitatea "Dunărea de Jos" din Galați, 2018)Interesul istoricilor români și străini pentru scrierea unor lucrări despre participarea României la Primul Război Mondial este în creștere în ultimii ani, mai ales datorită apropiatului Centenar. Avem astăzi la dispoziție ... -
Oportunități de transformare a expertizei freelancerilor în inițiative antreprenoriale la nivel global
(Universitatea "Dunărea de Jos" din Galați, 2021)Teza de doctorat abordează oportunitățile de transformare a expertizei freelancerilor în inițiative antreprenoriale și are ca scop identificarea motivației freelancerilor de a trece la următorul nivel și anume acela al ... -
Oportunităţi de creştere a performanţei economice în domeniul hotelier
(Universitatea "Dunărea de Jos" din Galați, 2019)Performanţa organizaţională este una din cele mai importante variabile şi fără îndoială cel mai important indicator al succesului unei organizaţii, indiferent de domeniul de activitate -
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 ...
