Results 1 to 10 of about 64,608 (260)

Emerging Cyber Security Challenges: Implications for Iranian National Security

open access: yesBTTN Journal, 2023
In the third decade of 21st century, cyber security has become a completely developed national security paradigm like other prominent security paradigms such as physical security, economic security, and food security.
Noureen Akhtar
doaj   +1 more source

MATHEMATICAL MODEL OF LIQUEFIED NATURAL GAS EVAPORATION AND ANALYSIS OF ORIGINAL COMPOSITION EFFECT ON EVAPORATION SPEED [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2020
Subject of Research. The paper proposes a model for predicting evaporation of liquefied natural gas (LNG) stored in tanks of regasification terminals. The model is a combination of the strict thermodynamic LNG vapor-liquid equilibrium and heat transfer ...
Elena S. Seredenko   +2 more
doaj   +1 more source

Study on Fundamental Frequencies of Cylindrical Storage Tanks Obtained from Codes and Finite Element Method [PDF]

open access: yesCivil Engineering Infrastructures Journal, 2017
In the case of study on the seismic behavior of tanks, one of the most important subjects is selection of convective and impulsive frequencies for storage tanks. These two frequencies are defined by Housner.
Mohsen Yazdanian, Sadegh Ghasemi
doaj   +1 more source

Network-level analysis of damage in amine-crosslinked diglycidyl ether resins degraded by acid

open access: yeseXPRESS Polymer Letters, 2022
Amine-crosslinked epoxy resins represent a large fraction of polymers used in structural and coating applications, meaning the characterization and modeling of environmental durability and mechanical reliability is of utmost importance.
Jonathon Tanks   +2 more
doaj   +1 more source

Soil-Structure Interaction of Cylindrical RC Tank of Variable Wall Thickness under the Constant Thermal Loading [PDF]

open access: yesArchives of Civil Engineering, 2020
An effective method for the analysis of soil-structure interaction including the behaviour of cylindrical storage tank with varying wall thickness under the action of constant thermal loading is presented.
Paweł Marek Lewiński, Michał Rak
doaj   +1 more source

Identification of the Effects of Fire-Wave Propagation through the Power Unit’s Boiler Island

open access: yesEnergies, 2021
The article presents the results obtained during the inspection of the load-bearing structure of a power unit that suffered from fire. The inspection, consisting in the assessment of both the structure’s technical condition and durability of welded ...
Michał Paduchowicz, Artur Górski
doaj   +1 more source

Interaction of RC and PC Cylindrical Silos and Tanks with Subsoil [PDF]

open access: yesArchives of Civil Engineering, 2020
The subject of this paper is an analysis of the influence of circumferential prestressing on the interaction of cylindrical silos and tanks with the subsoil.
Paweł Marek Lewiński
doaj   +1 more source

Prevention of Polluting Rivers and Lakes from Ships

open access: yesPromet (Zagreb), 2005
Traffic on rivers and lakes in Europe has been ve1y well developed.The reason for this is the transport cost, relative speedand good connectivity of major European cities by rivers andcanals.
Natalija Jolić   +2 more
doaj   +1 more source

Methodology for calculating the design parameters of thin-layer modules during reconstruction and use in existing structures [PDF]

open access: yesE3S Web of Conferences, 2023
This article presents a method for using thin-layer sedimentation tanks in horizontal sedimentation tanks in the process of drinking water purification. The basic requirements and methods for using thin-layer sedimentation tanks are presented.
Juraev Sherali   +3 more
doaj   +1 more source

African catfish (Clarias gariepinus Burchell, 1822). Thematic bibliography

open access: yesRibogospodarsʹka Nauka Ukraïni, 2017
Purpose. Forming a thematic bibliographic list of publications on certain issues of African catfish (Clarias gariepinus) biology and cultivation in Ukraine and abroad, as well as concerning the effects of rearing conditions on physiological, biochemical ...
I. Hrytsyniak, T. Shvets
doaj   +1 more source

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