Results 61 to 70 of about 182,639 (263)

The crystal structures and Hirshfeld surface analyses of a cadmium(II) and a zinc(II) mononuclear complex of the new tetrakis-substituted pyrazine ligand N,N′,N′′,N′′′-[pyrazine-2,3,5,6-tetrayltetrakis(methylene)]tetrakis(N-methylaniline)

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2020
The whole molecule of the cadmium(II) complex, diiodido{N,N′,N′′,N′′′-[pyrazine-2,3,5,6-tetrayltetrakis(methylene)]tetrakis(N-methylaniline)-κ3N2,N1,N6}cadmium(II), [CdI2(C36H40N6)], (I), of the ligand N,N′,N′′,N′′′-[pyrazine-2,3,5,6-tetrayltetrakis ...
Ana Tesouro Vallina   +1 more
doaj   +1 more source

Reserves, Injury Severity, and Outcomes in Traumatic Brain Injury: A CENTER‐TBI Observational Study

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Reserve refers to the brain's ability to maintain function after an injury and strongly relates to traumatic brain injury (TBI) outcomes. This study examined (1) whether associations between pre‐injury reserve proxies and outcomes differed across injury severity categories, and (2) whether the impact of injury severity varied across ...
Natascha Ekdahl   +6 more
wiley   +1 more source

(2-Aminoethan-1-aminium-κN2)trichloridozinc(II)

open access: yesIUCrData
The mononuclear zwitterionic ZnII complex, [ZnCl3(C2H9N2)], contains a monodentate 2-ammonioethylamine moiety and three chloride anions coordinating to the central zinc atom in form of a distorted tetrahedron.
Aboubacar Diop   +4 more
doaj   +1 more source

Zinc(II)-5,10,15,20-tetrakis(α-pyridino-m-tolyl)porphyrin Tetrabromide

open access: yesMolbank, 2009
Cationic porphyrins interact strongly with guanine quadruplex (G-quadruplex) DNA. We report the preparation of the zinc(II) complex of a porphyrin bearing cationic side arms, zinc(II)-5,10,15,20-tetrakis(α-pyridino-m-tolyl)porphyrin tetrabromide (ZnmPy),
Satoshi Fujii   +3 more
doaj   +1 more source

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez   +5 more
wiley   +1 more source

Preparation of Semiconductor Zinc Oxide Nanoparticles as a Photocatalyst to Get Rid of Organic Dyes Existing Factories in Exchange for Reuse in Suitable Purpose

open access: yesInternational Journal of Electrochemical Science, 2018
A new photocatalyst zinc(II) oxide (ZnO) was synthesized using a microwave-assisted green method using p-hydroxybenzoic acid and zinc nitrate as precursors. The sample was characterized by FTIR, UV-visible, EDX, XRD, SEM and TEM techniques. The molecular
A. Alhadhrami   +3 more
doaj   +1 more source

Solid‐State Diffusion and Intermetallic Phase Formation in Roll‐Bonded Mg–Zn Composites With Kirigami‐Patterned Inlay

open access: yesAdvanced Engineering Materials, EarlyView.
Mg–Zn composites with a thickness of 0.21 mm were fabricated using roll bonding of a kirigami‐patterned Mg alloy inlay within a Zn matrix. Thermal activation following this process led to the formation of tailored intermetallic structures, which provided the composite with enhanced flexural strength.
Yaroslav Frolov   +4 more
wiley   +1 more source

Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A

open access: yesAdvanced Engineering Materials, EarlyView.
The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han   +5 more
wiley   +1 more source

Optimization of the Production of Rubber Compounds Using Mathematical Models

open access: yesAdvanced Engineering Materials, EarlyView.
Rubber compounds were mixed in a batch internal mixer, and symbolic regression was used to derive mathematical models linking recipe and process parameters to ram path, torque, and mixing quality (incorporation, dispersion, distribution). Subsequent optimization with evolutionary algorithms identified operating conditions that reduce specific energy ...
Anke Bardehle   +7 more
wiley   +1 more source

SYNTHESIS, SPECTROSCOPIC CHARACTERIZATION, AND COMPARATIVE ANTIBACTERIAL SCREENING OF CONDENSATION-DERIVED Cu (II) AND Zn(II) COMPLEXES

open access: yesScience Journal of University of Zakho
Condensation-derived ligands and their transition metal complexes continue to attract interest due to their structural versatility and potential biological applications.
Falah M. Darweesh   +5 more
doaj   +1 more source

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