Results 111 to 120 of about 3,276,797 (361)

A FUNCTIONAL MODEL OF THE INFORMATION TECHNOLOGY FOR MANAGEMENT OF NATURAL EMERGENCY SITUATIONS ON TRUNK ROADS

open access: yesАвтоматизация технологических и бизнес-процессов, 2016
A functional model of the information technology for management of natural emergency situations on trunk roads has been developed on the basis of the IDEF0 notation.
N. Fil’
doaj   +1 more source

Direct Electron Detection Electron Energy‐Loss Spectroscopy: Speeding Up 2D Analytical In Situ Transmission Electron Microscopy for Aluminum Alloys

open access: yesAdvanced Engineering Materials, EarlyView.
Scanning transmission electron microscopy imaging techniques are an essential tool to document dynamic developments, such as precipitation in aluminum alloys, during in situ heating experiments using transmission electron microscopy. However, in many cases, chemical information is required to interpret complex nanoscale processes.
Evelin Fisslthaler   +4 more
wiley   +1 more source

Increase in life expectancy due to changes in the patterns of deaths from cardiovascular diseases in Iran during 2006-2019

open access: yesPayesh, 2022
Objective(s): Since cardiovascular diseases have been the dominant cause of death in Iran in recent decades, on this basis, this study amid to determine the role of changes in the epidemiological pattern of this cause of death in increasing the life ...
Ardeshir Khosravi, Mohammad Sasanipour
doaj  

A Review on Hybrid Empirical Mode Decomposition Models for Wind Speed and Wind Power Prediction

open access: yesEnergies, 2019
Reliable and accurate planning and scheduling of wind farms and power grids to ensure sustainable use of wind energy can be better achieved with the use of precise and accurate prediction models.
Neeraj Bokde   +3 more
doaj   +1 more source

Study of the Effect of Process Parameters and Heat Treatment on the Formation and Evolution of Directed Energy Deposition of IN718‐CuCrZr Interface

open access: yesAdvanced Engineering Materials, EarlyView.
Bimetallic structures of Inconel 718 and CuCrZr are fabricated using the laser powder directed energy deposition method. The study reveals a strong dependence of interface characteristics such as width and interfusion on processing and heat treatment strategies.
Hamidreza Javidrad, Bahattin Koc
wiley   +1 more source

Experimental Study on Decomposition and Evaporation Characteristics of N,N,N′,N′-Tetramethylethylenediamine and 1,2,4-Triazole

open access: yesEnergies, 2019
N,N,N′,N′-Tetramethylethylenediamine (TMEDA) is one of the candidate substances of hydrazine for hypergolic bipropellant applications. In this study, two experimental analyses were performed to investigate the characteristics of TMEDA and ...
Jungmin Yu   +2 more
doaj   +1 more source

Additive Processing of Ti‐17 by Wire Arc Directed Energy Deposition: An Investigation of the Microstructure and Mechanical Properties

open access: yesAdvanced Engineering Materials, EarlyView.
This study focuses on processing the titanium alloy Ti‐17 using wire arc directed energy deposition (waDED), with an emphasis on the microstructure and mechanical properties. The waDED typical heat‐affected zone banding is characterized and related to the local mechanical properties.
Alexander Wenda   +7 more
wiley   +1 more source

N,O Chelating Ligands Construct Five-Coordinated Zn(II) Exclusive {Zn6} Clusters: Decomposition, Stepwise Assembly and Photoluminescence Study

open access: yesCrystals, 2019
N-methylbenzimidazole-2-methanol (Hmbm) and Zn(NO3)2·6H2O were reacted in acetonitrile solvothermal at 80 °C for 48 h to obtain a six-nuclear Zn(II) cluster ([ZnII6(Hmbm)2(mbm)8(NO3)4]·12H2O·2CH3CN (Zn6)).
Qian-Jun Deng   +3 more
doaj   +1 more source

Biochar stability in soil: meta‐analysis of decomposition and priming effects

open access: yes, 2016
The stability and decomposition of biochar are fundamental to understand its persistence in soil, its contribution to carbon (C) sequestration, and thus its role in the global C cycle. Our current knowledge about the degradability of biochar, however, is
Jinyang Wang, Z. Xiong, Y. Kuzyakov
semanticscholar   +1 more source

Graphical decompositions

open access: yesDiscrete Mathematics, 1994
Suppose the vertices of the \(k\)-regular connected graph \(G_ n\) can be partitioned into two sets \(X\) and \(Y\) such that all vertex-degrees in the subgraphs induced by \(X\) and \(Y\) are at least \(\lceil k/2 \rceil\) and \(\lfloor k/2 \rfloor\), respectively.
openaire   +3 more sources

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