158 articole găsite pentru „influence”.
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New technologies of precise electrometry
Prof. dr. ing. Michael N. Surdu (Ucraina)
Noua abordare a problemei de crestere a preciziei de masurare a cantitatilor electrice este descrisa. Aceasta abordare se bazeaza pe variatiile de influenta a surselor de incertitudine la rezultatul masurarii. De obicei modelul matematic descrie rezultatul m…
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STABILIREA PARAMETRILOR SPECIFICI MĂSURĂRII ARMONICE A ELEMENTELOR GEOMETRICE ALE ANGRENAJELOR EVOLVENTICE PRIN SIMULARE NUMERICĂ
Drd. ing. Dănuț Iulian STANCIU, Dr. ing. prof. univ. Gh. GHEORGHE, Dr. ing. Daniela CIOBOATA
Măsurarea armonică a parametrilor geometrici a angrenajelor cu profil evolventic este o metodă mult mai rapidă decât metodele tradiţionale de verificare, cu o precizie suficient de mare să poată fi aplicată cu succes în industria producătoare de roţi dinţate …
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UPON ANALITICAL AND NUMERICAL CALCULUS OF THE MAIN PARAMETERS OF THE DETONATION PROCESS
Vasile NĂSTĂSESCU1,Ghiţă BÂRSAN
This paper presents some results of scientific research undertaken by the authors, regarding the numerical modeling of the detonation process, both the Finite Element Method (FEM) and the method of free particles, in version of Smoothed Particle Hydrodynamics…
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SOME ASPECTS REGARDING STRESS WAVE PROPAGATION IN TRONCONICAL SHORT BARS WITH VARIABLE ANGLE
Nicolae ILIESCU, Vasile NĂSTĂSESCU, Costică ATANASIU
In the first part of the paper an algorithm of calculus, using FEM, developed by the authors in a previous paper, is presented. This computational algorithm was applied in the study of stresses wave propagation produced by an axial impact in a tronconical sho…
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RESEARCHES ON IMPROVING THE MANUFACTURING ACCURACY OF CNC CUTTING MACHINES
Cristina BIRIŞ, Octavian BOLOGA, Claudia GÎRJOB
This paper presents the experimental researches results carried out to optimize the dynamic behaviour of a NC machine-tool regarding the cutting precision. The aim is to detail the influence of the numerical control equipment setup on the size of the contouri…
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MÖSSBAUER EFFECT INVESTIGATION OF FE-C STEEL ELECTROLYTIC GALVANISATION
Ion BIBICU, Caius BULEA, Vasile RUS
Galvanizing is a very well known industrial process for anticorrosive and protection coatings. At first sight, galvanizing should not need any further important research and development involvement but many reasons contradict this appreciation: the constant e…
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ARE THE STATIC POWER CONVERTERS
ENERGY EFFICIENT?
Ion POTÂRNICHE, Cornelia POPESCU, Mina GHEAMALINGA
The power static converters, products used intensively in industrial applications of type as energy conversion, traction, equipment and lifting equipment structure and others, are characterized through two validates abilities in the industrial practice: utili…
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THEORETICAL RESEARCHES ON THE STRESS STATE AT VIBRO-DRAWING
Octavian BOLOGA
The paper contains the mathematical modelling of the stress state at vibro-drawing for the case of introducing the vibrating motion on axial direction, by means of the punch, into the drawing die. Starting from the definition of the total radial stress as sum…
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MODERNIZATION ELECTRIC SUBSTATIONS 110/20 KV
Eng. Florin DRACEANU PhD, Assoc. Prof. Eng. Cezar Dumitru POPA PhD, Assoc. Prof. Eng. Dumitru Radu PENTIUC PhD, Assoc. Prof. Eng. Leon MANDICI PhD
The subjects ”connection to the national energy system installations producing renewable electricity " is topical and of great importance for future managers of wind power, photovoltaic, biomass cogeneration. Economic situation in Romania also influence the…
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Passive house design in Romania as an influence of weather data analyses
Eng. Marcel Mugurel Iancu, Ph.D. candidate, Ph.D.Prof.Eng. Gheorghe – Constantin Ionescu , Eng. Raul Stelian Balota, Ph.D. candidate
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Influence of the composition of the culture environment on the fermentation dynamics of the selection wine yeasts at Sebes-Apold vineyard
Lengyel Ecaterina, Tita Ovidiu, Oprean Letitia, Gaspar Eniko, Iancu Maria Ramona
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Influence of sea buckthorn fortification on sensory, physical and rheological characteristics of yogurt
Tifrea Anca-Maria, Tita Ovidiu, Dan Alina Florentina
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The influence of the sowing with active yeast and addition of alcohol on the process of maceration-fermentation in rotary tanks
Radulescu Axenia, Tusa Ciprian, Tita Ovidiu
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The influence of the mixing regime on the process of maceration-fermentation in rotary tanks
Tita Ovidiu Radulescu Axenia
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The influence of filtration conditions on the quality of muscat ottonel
Tusa Ciprian, Radulescu Axenia, Tita Ovidiu
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EFFECT OF CHLORIDE IONS SOURCE ON CORROSION OF REINFORCED NORMAL AND HIGH PERFORMANCE CONCRETE
PhD, Assist. Prof. Tareq Salih AL-ATTAR, MSc, Lect. Mustafa Sameer ABDUL-KAREEM
The aim of this paper is to investigate the influence of chloride ions source on corrosion of steel embedded in different types of concrete. The experimental part consisted of: chloride content analysis, rapid chloride permeability test (RCPT), and linear pol…
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Research on the influence of natural bioactive substances on the quantity and quality of production on tomatoes grown in greenhouse
Cristina Elena Tota, Viorel Berar
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The influence of the drying agent’s parameters in cereal drying process
Laurentiu Calin, Mihai Jadaneant, Francisc Popescu, Nicolae Lontis, Adrian Irimescu