2013 fascicula14 nr2
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Some Physical Changes in Extra Virgin Rapeseed Oil after the Process
(Universitatea "Dunărea de Jos" din Galaţi, 2013-10-01)The aim of this study is the viscosity’s evolution depending on the temperature and the shear rate and the analysis at the transmittance spectra of the oxidized rapeseed oil. Rapeseed oil was oxidized at the temperatures ... -
Spectrophotometric and Rheological Studies on Oxidized Soybean Oils
(Universitatea "Dunărea de Jos" din Galaţi, 2013-10-01)This paper presents a rheological and spectrophotometric study of oxidized and nonoxidized soybean oils at 100, 110 and 120°C temperatures. The oxidation periods of time were 5 hours and 10 hours. Changes of the oxidized ... -
Experimental Dynamics of a Bridge Deck Isolated with Rolling Pendulum System (RPS)
(Universitatea "Dunărea de Jos" din Galaţi, 2013-10-01)Base isolation of building structures represents the most important technique used worldwide at this moment. An innovative isolation system is presented in this article, whose passive type operating principle is based on ... -
Comparative Modal Analysis of a Rigid Structure with Conservative Insulation
(Universitatea "Dunărea de Jos" din Galaţi, 2013-10-01)This paper deals with dynamics of compact rigid structures with elastic insulation and subjected to various vibratory, shock or seismic actions. It was supposed a simple rigid model with six degrees of freedom, affected ... -
Second Law Analysis of a Furnace for Metal Heating
(Universitatea "Dunărea de Jos" din Galaţi, 2013-10-01)The industry represents an important sector of the final energy consumption and despite the effort made so far, energy saving potential still remains in this sector. This paper presents an example of energy efficiency ... -
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. -
Experimental Research of Reaction Force Produced by Coanda Nozzle
(Universitatea "Dunărea de Jos" din Galați, 2013-10-01)The paper presents research results of gas dynamics of Coanda nozzle, that is a key element of drones with jet propulsion. The jet propulsion Coanda drones allow you to quickly monitor the large areas in emergency situations: ... -
The Calculation Procedure of Experimental Sonic Generator with Two Resonators Designed for Water Treatment Processes
(Universitatea "Dunărea de Jos" din Galați, 2013-10-01)The design parameters such as nozzle slot, generator’s slot, resonance chamber diameter, resonator neck length, inlet port diameter are required to determine the optimal operating parameters while using the sonic generator ... -
Dynamic Simulation of the Vibrator Roller - Terrain Interaction Using an Elastoplastic Approach
(Universitatea "Dunărea de Jos" din Galați, 2013-10-01)This study deals with the problematic of deep interaction between the terrain and the vibratory drum at the technological process of dynamic compaction. In this paper is briefly presented a theoretical approach of this ... -
Aspects of the Dynamic Behaviour of Pressure Valves
(Universitatea "Dunărea de Jos" din Galați, 2013-10-01)The present work is a synthesis of the research carried out in the years of exploration and research of hydraulic components in order to understand and evaluate dynamic behaviour. In particular, it tries to detect links ... -
Considerations on the Pulsating Character of Pressure Transient of Hydrostatic Components
(Universitatea "Dunărea de Jos" din Galați, 2013-10-01)The paper analyzes the dynamic response of the hydraulic units with the specific character of the hydraulic pressure and transitional pulse from such establishments. It is a simplified mathematical model for these ...
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