Results 61 to 70 of about 3,520 (225)

Dynamics and Conformational Stability of Chiral Bay‐Phenolate‐Substituted Twisted Octaazaperopyrenedioxides (OAPPDOs)

open access: yesChemistry – A European Journal, EarlyView.
Chiral octaazaperopyrenedioxide (OAPPDO) fluorophores were obtained by functionalizing with BINOL and related fragments bridging the bay position. They possess conformational flexibility but remarkable thermal stability with respect to racemization of the central chromophore, which allowed the study of their chiroptical properties, including circular ...
Bastian Rojas‐Deij   +8 more
wiley   +1 more source

A story about standardization for design of glass works [PDF]

open access: yes, 2010
This contribution attempts to give an overview of the European standardization framework which is related to the design and calculation of glass works in buildings.
Belis, Jan   +3 more
core  

Influence of the Climate Policy of the European Union on the Competitiveness of Pollution-generating Sectors of the Polish Economy in the Context of Sustainable Development [PDF]

open access: yes, 2011
The businesses surveyed represent industries which are pollution generators by their nature and even ecologically-oriented technological progress is incapable of ensuring considerable emission reductions without general switching of the economy to ...
C. Schönwiese   +2 more
core   +2 more sources

Regio‐ and Diastereoselective C–C Silylation of Cyclopropyl Acetates Harnessing Fluorinated Poly(pyridyl)Borate Rhodium Catalysts

open access: yesChemistry – A European Journal, EarlyView.
Fluorinated poly(pyridyl)borates have been utilized to stabilize rhodium‐diene complexes and as supporting ligands in rhodium‐catalyzed redox‐neutral C–C silylation of cyclopropyl acetates, producing silicon‐containing heterocyclic products, dioxasilolanes.
Vo Quang Huy Phan   +3 more
wiley   +1 more source

Dynamic accelerated solvent extraction for faster oil sands oil, water, and solids determination and solids cleaning

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
25 g of oil sands extracted by dynamic accelerated solvent extraction, yielding 177 mL of bitumen–toluene extract and clean dried solids in approximately 12 min. Abstract Determining the oil, water, and solids (OWS) contents of oil sand is essential to many aspects of the oil sands industry including mine planning, optimization of extraction processes,
Ceanna Ting‐Yan Cheung   +1 more
wiley   +1 more source

Application of manufactured products [PDF]

open access: yes
A wide range of products can be manufactured from the following materials: (1) lunar regolith or basalt; (2) regolith or rock beneficiated to concentrate plagioclase or other minerals; (3) iron, extracted from lunar soil or rocks by various means; (4 ...
Duke, Michael B., Sastri, Sankar
core   +1 more source

Synthesis and characterization of amphiphilic nitroxide 1,1,3,3–tetraethylisoindoline–2–oxyl–5–sodium sulfonate (TEIOSNa)

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract The synthesis and characterization of an amphiphilic nitroxide to be used as a controlling agent in a nitroxide‐mediated living radical polymerization in aqueous dispersion media is presented. In the first stage of nitroxide synthesis (phthalimide protection), two reaction methods were employed: traditional and microwave.
Enrique García‐Leal   +3 more
wiley   +1 more source

A Complex Case of Pulmonary Silico-Tuberculosis and Review of Literature. [PDF]

open access: yesDiagnostics (Basel), 2023
D'Sa L   +7 more
europepmc   +1 more source

Mortality in the Swedish glassworks industry.

open access: yesScandinavian Journal of Work, Environment & Health, 1987
An earlier, relatively small case-referent study has shown an increased risk for glassworks employees to die from stomach cancer, lung cancer, and cardiovascular disorders. This observation suggested an extended study virtually covering the entire glass-producing industry of Sweden.
G, Wingren, O, Axelson
openaire   +3 more sources

Design and implementation of a 3D‐printed modular distillation tower for experimental teaching in chemical engineering

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract Several authors have reported the disconnection between the skills, abilities, and attitudes of graduates from STEM careers with the current needs of the labour market. In science and engineering fields, research has found the need for interdisciplinary approaches that encourage meaningful learning.
Úrsula Manríquez‐Tolsá   +7 more
wiley   +1 more source

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