Caută
Afișează articolele 481-490 of 586
Establishing the Rolling-Friction Coefficient for Different Contacts Between Balls and Termochemicallly Treated Steel Rolling Paths
(Universitatea "Dunărea de Jos" din Galați, 2014)
Within the frame of this work, the influence of four very well-known and often
used thermochemical treatments (carburizing, carbonitriding, nitriding and
nitrocarburizing) of steel rolling paths applied on rolling-friction ...
Structural Changes Associated with the Pseudoelastic Response of Fe-based Shape Memory Alloys
(Universitatea "Dunărea de Jos" din Galați, 2014)
The pseudoelastic responses of two types of iron base shape memory alloys
(SMAs) were introduced and discussed. The former was based on Fe-Mn-Si system,
obtained by classical (CM) and by powder metallurgy (PM) manufacturing. ...
Challenges in Corrosion Protection using Vegetable Extracts as Inhibitors-Electrochemical Studies
(Universitatea "Dunărea de Jos" din Galați, 2014)
Corrosion is an irreversible chemical or electrochemical reaction of a
material with its surrounding environment or medium which results in consumption
of the material or in dissolution into the material of a component ...
Antimicrobial Activity of Ag:Zno/Chitosan Composites
(Universitatea "Dunărea de Jos" din Galați, 2014)
This paper deals with Ag, ZnO and Ag-doped ZnO nanoparticles embedded in
chitosan (CS) matrix, prepared by hydrolysis of zinc acetate in isopropanol in the
presence of lithium hydroxide (LiOH) in low temperature ...
Environmental Risks Assessment by Qualitative and Quantitative Methods
(Universitatea "Dunărea de Jos" din Galați, 2016)
The paper presents qualitative and quantitative methods, applicable on
environmental risks, and conditions of application. The principles of the two classes
of risk assessment methods and the advantages and disadvantages ...
Optimization Techniques for the Neutralization of the Polluted Waters from Metal Plating
(Universitatea "Dunărea de Jos" din Galați, 2016)
The problems related to the protection of the environment are regarded
especially as a result of the local pollution by the industry and agriculture or by the
overcrowded areas, which have led to the disturbance of some ...
Research on the Operation of Commercial Vessels with Compressed Air
(Universitatea "Dunărea de Jos" din Galați, 2016)
Regarding the reduction of the carbon dioxide emissions in the atmosphere,
this paper is going to present a system of propulsion with compressed air used for
medium-sized commercial vessels. In the transport domain, ...
Research Regarding the Wear Level for a new Constructive Solution of a Cutting Tool
(Universitatea "Dunărea de Jos" din Galați, 2014)
The paper presents a study of wear made to implement a constructive solution
for a new cutting tool. The design of the cutting tool can be checked from a
functional perspective, as well as reliability during the cutting ...
Methods to reduce gas emissions onboard ships
(Universitatea "Dunărea de Jos' din Galaţi, 2016)
Regarding the latest IMO requirements, the EEDI (Energy Efficiency Design
Index) is mandatory to be limited as levels under IMO MEPC requirements.
The paper presents some paths to reduce EEDI as are applied onboard a ...
Evaluation of the Occupational Risk Associated to Work Environment in Ferrous Metallurgy
(Universitatea "Dunărea de Jos" din Galați, 2013)
Work environment present risk factors due to chemical pollution of ambient
air with dust, smoke, fumes, vapors, mists and gases. Moreover physical risk factors
(related to noise, lighting, temperature, vibration, humidity, ...