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Now showing items 10501-10510 of 11793
Properties of flexible polyurethane foams containing isocyanate functionalized kraft lignin
(Elsevier, 2017-02-20)
A commercial kraft lignin (k-lignin) was successfully functionalized by means of the reaction of an isocyanate group from isophorone diisocyanate (IPDI) with hydroxyl groups present in lignin (k-IPDI), for their further ...
Properties of Hydrophilic Mineral Wool for Desalination of Historical Masonry
(Kaunas University of Technology, 2016-01-20)
Hydrophilic mineral wool (HMW) is considered as a possible alternative to the commonly used cellulose in desalination of historical masonry. HMW also allows water and salt solutions transport along the hydrophilic fibres, ...
(Un)Plugging smart cities with urban transformations: Towards multistakeholder city-regional complex urbanity?
(Universidad de Almería, 2016)
The author argues that the development of the so-called buzzword smart city and its use in planning inner cities are intimately bound up with required current urban transformations. In this attempt to deconstruct or unplug ...
Secondary Phosphine Oxides: Bifunctional Ligands in Catalysis
(Willey, 2020-06-10)
Metal complexes of secondary phosphine oxides (SPOs) were introduced as homogeneous catalysts in the 1980s for hydroformylation and hydrogenation with platinum as the metal. As neutral species, the ligand properties resemble ...
Implementing strategies to reduce singly housed male mice
(Sage, 2019-05-01)
There are different husbandry situations that lead to social isolation of male mice. Besides legal considerations, single housing has a negative impact on behavioural and molecular studies. We have implemented two strategies, ...
Salt-Marsh Foraminiferal Distributions from Mainland Northern Georgia, USA: An Assessment of Their Viability for Sea-Level Studies
(Ubiquity Press, 2020-03-26)
We investigated foraminiferal distributions from two salt-marsh sites at Thunderbolt and Georgetown, in mainland northern Georgia, U.S. Atlantic coast. We analyzed modern epifaunal foraminiferal assemblages across multiple ...
Process design, kinetics, and techno-economic assessment of an integrated liquid phase furfural hydrogenation process
(2023-12-08)
The integrated liquid phase process for producing furfuryl alcohol involves three stages: i) liquid–liquid extraction for recovering furfural from the aqueous solution obtained after a conventional steam-stripping hydrolysis ...
Production of magnetic sewage sludge biochar: investigation of the activation mechanism and effect of the activating agent and temperature
(Spring Nature, 2022-02-11)
Sewage sludge-based porous materials were prepared through an integrated and energy-saving procedure that combines chemical activation with an alkali (NaOH or K2CO3) and physical activation with CO2 in a single step. The ...
Probing α‐Amino Aldehydes as Weakly Acidic Pronucleophiles: Direct Access to Quaternary α‐Amino Aldehydes by an Enantioselective Michael Addition Catalyzed by Brønsted Bases
(Wiley, 2020-10-09)
The high tendency of α-amino aldehydes to undergo 1,2-additions and their relatively low stability under basic conditions have largely prevented their use as pronucleophiles in the realm of asymmetric catalysis, particularly ...
Proof of concept for impact and flaw detection in airborne structures
(Elsevier, 2022)
All structures are subject to unwanted and uncontrolled bumps. For instance, when considering airborne vehicles, birds, hail, and meteors are usual sources of collision. Depending on the location and energy of the impacts, ...