Results 171 to 180 of about 585,959 (246)

Comparative Evaluation of Esthetic Zirconia Crowns in Children: A Comprehensive Review. [PDF]

open access: yesCureus
Alrassan AM   +13 more
europepmc   +1 more source

Fluorescence Properties and Mg2+ Selectivity of Aryl‐Alkynyl Derivatives of the o‐Aminophenoltriacetate (APTRA) Ligand

open access: yesChemistry – A European Journal, EarlyView.
It is a challenge to improve the selectivity of high‐denticity ligands for Mg2+ over Ca2+. We show that in aryl‐alkynyl derivatives of APTRA, electron‐withdrawing substituents lower the binding affinity for Ca2+ more than Mg2+, making the ligand more selective for Mg2+.
Laura L. Duncan   +2 more
wiley   +1 more source

Utilization of Waste Materials Using the Müller–Kühne Process—A Life Cycle Inventory Study

open access: yesChemie Ingenieur Technik, EarlyView.
This study presents a Life Cycle Inventory of the Müller–Kühne process (MKP), which converts gypsum waste into sulfuric acid and cement clinker. The MKP outperforms conventional cement production regarding material yield, though its specific energy demand is higher. Consequently, potentials for circular gypsum waste utilization are discussed.
Leon Kassner   +4 more
wiley   +1 more source

High-Strength WC-Co Cemented Carbide Obtained by Using WC+Co+Zn Mixture

open access: diamond, 1974
Hisashi Suzuki   +4 more
openalex   +2 more sources

Characterization of a two‐phase hybrid flotation column

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study explored the performance of a novel hybrid flotation column, which combines the advantages of a mechanically agitated cell with a flotation column and compared the results with a conventional flotation column setup. The experiments were performed in an air/water two‐phase system under varying airflow rates, frother concentrations ...
Pedro Silva Aires   +3 more
wiley   +1 more source

Pulmonary cement embolism after percutaneous vertebroplasty. (RCD code: II-1C.0)

open access: bronze, 2016
Sebastian Gurba   +5 more
openalex   +2 more sources

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