Results 51 to 60 of about 4,060 (202)

Análisis simultáneo de la remoción de Azul brillante y Rojo 40 mediante espectrofotometría de derivadas. [PDF]

open access: yes, 2015
Effluents from food and textile industries contain dye mixtures. However,the evaluation of these multicomponent systems has been poorly exploreddue to their complex quantification.
Angelina Del Socorro Hormaza Anaguano   +3 more
core   +1 more source

Improving joint performance of friction stir welded 2195-O Al–Li alloy by post-weld heat treatment and rolling deformation

open access: yesJournal of Materials Research and Technology
Post-weld heat treatment and rolling deformation are used to improve the mechanical properties of 2195-O Al–Li alloy friction stir welding (FSW) joints, and the effects on the grain structure, precipitation behaviors, hardness distribution, and tensile ...
Jiaxin Chen   +7 more
doaj   +1 more source

Barriers and Challenges for the Implementation of the Integrated Tariff in Ukraine on the Case of Kyiv City

open access: yesStudia Ekonomiczne i Regionalne, 2019
Subject and purpose of work: Integrated fare to date is essential for the efficient functioning of city transport services and for the involvement of citizens to shift from private to public transport. Implementation of this kind is a necessary component
Kolomechiuk Vladyslav
doaj   +1 more source

Biobased Random Copolymers From Furandicarboxylic Acid Isomers: Proof of Concept for an Integrated Biorefinery Approach Toward Outstanding Sustainable Food Packaging

open access: yesGlobal Challenges, Volume 10, Issue 4, April 2026.
An integrated, solvent‐free route paired a Henkel‐type synthesis of biobased FDCA isomers with their copolymerization using linear glycols, to yield three random copolyesters (2,5‐2,4‐PTF, 2,5‐2,4‐PBF, 2,5‐2,4‐PHF). Compression‐molded films showed higher toughness, elongation, and humidity‐resistant gas barriers (impermeability to CO2 for PBF ...
Enrico Bianchi   +5 more
wiley   +1 more source

European railway reforms and efficiency: Review of evidence in the literature

open access: yesReview of Economic Perspectives, 2017
The objective of the European railway reforms which started in the 1990s was to enable the entry of competition to raise the efficiency of railway transport. This was undertaken because the level of services, particularly in former Eastern Bloc countries,
Fitzová Hana
doaj   +1 more source

Transformation‐Equivariant Network Fused With Multi‐Stage Cascade Attention for Point Cloud Object Detection

open access: yesCAAI Transactions on Intelligence Technology, Volume 11, Issue 2, Page 564-577, April 2026.
ABSTRACT Object detection of unmanned firefighting vehicles faces challenges such as strong electromagnetic interference, drastic lighting changes and dynamic object variations. To address these issues, we propose a two‐stage 3D point cloud object detection algorithm called TED‐CasA‐Fusion.
Jiangdong Wu   +5 more
wiley   +1 more source

Adsorption of red 40 dye on rice husk: determination of the equilibrium, kinetic and thermodynamic of the process

open access: yesTecnura, 2018
Context: Agricultural residues have become unconventional adsorbents of great interest due to their wide availability, minimum cost, and high efficiency.
Fredy Alberto Amaringo Villa   +1 more
doaj   +1 more source

Study of the point scattering uniform algorithms in R40space

open access: yesJournal of Physics: Conference Series, 2019
AbstractThe use of randomness in the spread of points in the R40space gives doubts about the stability of using these spreads and the stability of global optimization algorithms predictions that are based on these spreads. The uniformity of the following initial points scatter algorithms is analyzed: LPτ sequence, UDC sequence, uniform random spread in
A, A Stupina   +5 more
openaire   +2 more sources

Effects of Access Cavity Design on the Shaping Ability and Dentine Thickness Following Canal Preparation Using XP‐Endo Shaper or Reciproc

open access: yesAustralian Endodontic Journal, Volume 52, Issue 1, Page 156-167, April 2026.
ABSTRACT This study compared the shaping ability and remaining dentine thickness in mandibular molars prepared with traditional (TradAC) or ultraconservative (UltraAC) access cavities using Reciproc or XP‐endo Shaper instruments. Thirty‐two molars were scanned with micro‐CT before and after preparation to assess canal surface, volume, untouched walls ...
Renata Muniz Alvez Cruz   +6 more
wiley   +1 more source

Cyclic Fatigue Resistance of Reciproc Blue and Reciproc Files in an S-shaped Canal

open access: yes, 2017
Introduction: This study evaluated the cyclic fatigue resistance (CFR) of Reciproc (R25 and R40; VDW, Munich, Germany) and Reciproc Blue (R25 and R40, VDW) instruments used in an artificial S-shaped canal. Methods: A total of 80 files were tested in an S-
Topcuoklu, Gamze   +3 more
core   +1 more source

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