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Afișează articolele 1867-1886 of 2993
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Obținerea și caracterizarea unor compuși heteroaromatici cu proprietăți bioactive utilizând metode clasice sau aparținând chimiei verzi
(Universitatea „Dunărea de Jos” din Galați, 2023)Compușii cu nucleu piridinic au atras atenția pentru potențialele aplicații în diverse domenii precum biochimie, știința materialelor, medicină sau biologie moleculară, datorită diferitelor lor stucturi chimice, proprietăților ... -
Obţinerea şi caracterizarea glicozid-hidrolazelor din familia xilanaze biosistetizate de streptomicete selecţionate
(Universitatea "Dunărea de Jos" din Galaţi, 2011)Teza de doctorat cu tema: Obţinerea şi caracterizarea glicozid-hidrolazelor din familia xilanaze biosintetizate de streptomicete selecţionate a vizat obţinerea de enzime din clasa glicozid-hidrolaze, in special cele ... -
Obţinerea şi caracterizarea unei lipaze bacteriene active la temperaturi scăzute
("Dunarea de Jos" University of Galati, 2011)Enzimele care hidrolizează lipidele şi derivaţii acestora sunt denumite generic-lipaze. Oamenii de ştiinţă au realizat performanţa peproducerii proceselor naturale de sinteză şi degradare în vitro cu scopul obţinerii unor ... -
Obţinerea, caracterizarea şi evaluarea potenţialului antimicrobian al unor compuşi bioconservanţi obţinuţi prin biotransformarea unor lipide din surse vegetale
(Universitatea "Dunărea de Jos" din Galaţi, 2012)Tendintele asigurării unei alimentaţii moderne corelate cu sănătatea populaţiei au determinat intensificarea cercetarilor de înlocuire a aditivilor de sinteza chimică, în special a compuşilor conservanţi, cu compuşi naturali ... -
Occupational Risk Management in Industry
(Universitatea "Dunărea de Jos" din Galaţi, 2018)Occupational risk management is part of the occupational health and safety at workplace. Occupational risk management has a specific component relating to the assessment of the risk and a common component of all types ... -
Octavian Paler și viciul memoriei. De la temele recurente la mitul personal
(Universitatea "Dunărea de Jos" din Galați, 2020)În teza de doctorat cu tema Octavian Paler și viciul memoriei1. De la temele recurente la mitul personal2 s-a intenționat, pe de o parte, construirea unei viziuni de ansamblu asupra operei unuia dintre scriitorii din ... -
Ocuparea forţei de muncă în România, în contextul integrării în U.E.
(Universitatea " Dunărea de Jos" Galaţi, 2011)Procesul de reforme declanşat la începutul anilor 1990, în România, a urmărit şi urmăreşte în esenţă crearea unei economii concurenţiale performante şi durabile, în cadrul căreia piaţa forţei de muncă are un rol primordial. ... -
Oil Effect on World Economy
(Universitas Galatiensis, 2006-01)The paper presents the macroeconomic effects of the oil trade on the world economy, taking into account a number of factors that characterise it: evolution of oil price, as well as dynamics of oil exports, economic ... -
Omline industrial Proces Broacast and Control Based on IP and Serial Networks
("Dunarea de Jos" University of Galati, 2007)The Internet network in conjunction with a strong security policy can be an ideal online broadcast system for the industrial processes monitoring and control. Because the distributed controllers are connected through ... -
Omotetii fractale în Memento Mori de M. Eminescu
(Universitatea "Dunărea de Jos" din Galați, 2006-01)The fractal model identified by Mandelbrot’s branching process becomes relevant for Eminescu’s Memento mori by means of which the poetic form gains inner dynamism. Its final artistic effect lies in defining poetry as an ... -
On a Takagi-Sugeno Fuzzy Controller with Non-Homogenous Dynamics
("Dunarea de Jos" University of Galati, 2001)The paper proposes a Takagi-Sugeno fuzzy controller with non-homogenous controller dynamics with respect to the two input channels, that means, in the linear case, different transfer functions with respect to the reference ... -
On Activity Modelling in Process Modelling
("Dunarea de Jos" University of Galati, 2001)The paper is looking to the dynamic feature of the meta-models of the process modelling process, the time. Some principles are considered and discussed as main dimensions of any modelling activity: the compatibility of ... -
On Dynamics of Bucket Wheel Excavators with Radial Digging
(Universitatea "Dunărea de Jos" din Galați, 2013-10-01)The paper presents the influence of some structural and operating parameters on external load characteristics caused by resistances to reclaiming at bucket wheel in the radial digging process. -
On Estimation of the Orientation of Mobele Robots Ising Turning Fuctions and Sonar Information
("Dunarea de Jos" University of Galati, 2003)SONAR systems are widely used by some artificial objects, e.g. robots, and by animals, e.g. bats, for navigation and pattern recognition. The objective of this paper is to present a solution on the estimation of the ... -
On Exponential and Asymptotic Estimation of State Variables in Bioprocesses
("Dunarea de Jos" University of Galati, 2001)The paper presents on-line estimation strategies for bioprocesses, which are characterized by strongly nonlinear dynamics. A general form for the state observers is analysed and the exponential observability of bioprocesses ... -
On Image Transmission in Communication Channels Using Alamouti Space-Time Codes
("Dunarea de Jos" University of Galati, 2012)Transmitting large amounts of data through wireless communication channels, at high speed and low error probability, is a major challenge for the researchers in the field. In this paper, aspects of image transmission in ... -
On Kerosene Lubrication of Hybrid Ball Bearings
(Universitatea "Dunărea de Jos" din Galaţi, 2007)The hybrid ball bearings with silicon nitride balls are employed in special applications, e.g. high-speed machine tools and aeronautics. The kerosene can be used not only as a fuel for the jet engine, but also as lubricant ... -
On Line Competitiveness Based on Adeptive Control of the Manufacturing System
(Universitatea "Dunărea de Jos" din Galați, 2010)Competitiveness fully and synthetically characterizes the viability of an enterprise. In the economics literature competitiveness is analyzed in particular in economic and managerial terms with almost no insight into the ... -
On Phenomena Based Metamodelling - A Process System Engineering Point Of View
("Dunarea de Jos" University of Galati, 2000)This work is looking to methodological aspects of process modelling. The point of view is more from Process System Engineering (PSE) in order to develop formal and generic techniques for process modelling, and to use ... -
On Process Modelling Using Physical Oriented and Phenomena Based Principles
("Dunarea de Jos" University of Galati, 2000)This work presents a modelling framework based on phenomena description of the process. The approach is taken to easy understand and construct process model in heterogeneous possible distributed modelling and simulation ...
