Results 71 to 80 of about 190,308 (299)

Development of Sustainable MgO–C Refractories Using MgO–C Recyclates and a Novel Eco‐Friendly Fructose–Tannin Binder Crosslinked With Citric Acid

Advanced Engineering Materials, EarlyView.
This study develops sustainable MgO–C refractories using recycled materials and eco‐friendly fructose–tannin binders. The enhanced performance of citric acid as a cross‐linker and functional additives on mechanical and thermomechanical properties was examined. Characterization included strength tests, immersion trials, and microstructural and inclusion
Dinesh K. Gunasekar, Jana Hubálková, Steffen Dudczig, Gert Schmidt, Florian Kerber, Thomas Schemmel, Patrick Gehre, Christos G. Aneziris   +7 more
wiley   +1 more source

Evaluation of Some Physico-Mechanical Properties and Formaldehyde Emission of Ecological Chipboards Produced from Annual Residue Plant Stems

Drvna Industrija
Urea formaldehyde glue is one of the most preferred glues in the production of wood composite panels. It has many advantages such as economy, effective adhesive power and easy use.
Celal Uğur, İbrahi̇m Bektaş
doaj   +1 more source

Global atmospheric budget of acetaldehyde: 3-D model analysis and constraints from in-situ and satellite observations [PDF]

, 2010
We construct a global atmospheric budget for acetaldehyde using a 3-D model of atmospheric chemistry (GEOS-Chem), and use an ensemble of observations to evaluate present understanding of its sources and sinks.
Apel, E., Barkley, M., de Gouw, J. A., Eerdekens, G., Flocke, F., Guenther, A., Karl, T., Millet, D. B., Nelson, N. B., Palmer, Paul, Riemer, D. D., Siegel, D. A., Singh, H. B., Sinha, V., Warneke, C., Williams, J.   +15 more
core   +2 more sources

Ideal Molecular Sieving with a Dense MOF for Helium Upgrading with Highly Diffusion Selective Mixed Matrix Membranes

Advanced Functional Materials, EarlyView.
The separation of Helium gas from natural gas is challenging but highly important. MIL‐116(Ga), a “non‐porous” metal–organic framework is used as a molecular sieve to separate He from CH4. Druse‐like MIL‐116(Ga) particles are integrated into polysulfone mixed matrix membranes.
Ayisha Komal, Laura Calderón‐Rodríguez, Oksana Smirnova, Eren Grossmann, Aparna Binu Varghese, Karen Marlenne Garcia Alvarez, Andreas Schneemann, Thomas Hoyer, Ralf Wyrwa, Felix Helmut Schacher, Alexander Knebel   +10 more
wiley   +1 more source

Sensitivity to grid resolution in the ability of a chemical transport model to simulate observed oxidant chemistry under high-isoprene conditions [PDF]

, 2016
Formation of ozone and organic aerosol in continental atmospheres depends on whether isoprene emitted by vegetation is oxidized by the high-NOx pathway (where peroxy radicals react with NO) or by low-NOx pathways (where peroxy radicals react by alternate
Cohen, Ronald C., Dibb, Jack E., Fisher, Jenny A., Fried, Alan, Jacob, Daniel J., Kim, Patrick S., Marais, Eloise A., Mikoviny, Tomas, Miller, Christopher C., Ryerson, Thomas B., Sulprizio, Melissa P., Travis, Katherine R., Wennberg, Paul O., Wisthaler, Armin, Yantosca, Robert M., Yu, Karen, Zhu, Lei   +16 more
core   +1 more source

Molecules with a peptide link in protostellar shocks: a comprehensive study of L1157 [PDF]

, 2014
Interstellar molecules with a peptide link -NH-C(=O)-, like formamide (NH$_2$CHO), acetamide (NH$_2$COCH$_3$) and isocyanic acid (HNCO) are particularly interesting for their potential role in pre-biotic chemistry.
Bachiller, R., Boechat-Roberty, H. M., Ceccarelli, C., Codella, C., Lefloch, B, López-Sepulcre, A., Mendoza, E.   +6 more
core   +2 more sources

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

Contributions to local- and regional-scale formaldehyde concentrations [PDF]

Atmospheric Chemistry and Physics, 2019
Reducing ambient formaldehyde concentrations is a complex task because formaldehyde is both a primary and a secondary air pollutant, with significant anthropogenic and biogenic sources of volatile organic compound (VOC) precursor emissions.
L. A. J. Bastien, L. A. J. Bastien, N. J. Brown, R. A. Harley, R. A. Harley   +4 more
doaj   +1 more source

Development of phenol-formaldehyde resin with low formaldehyde emissions that respects LEED certification [PDF]

International Wood Products Journal, 2014
AbstractIn the last years, production of particleboards with good overall performance and very low formaldehyde emission has been a challenge to wood based panels (WBP) industry, mainly since the re-classification of formaldehyde by the IARC (International Agency for Research on Cancer) as ‘carcinogenic to humans (Group 1)’.
Nadia Paiva, João Pereira, João Ferra, Jorge Martins, Luísa Carvalho, Fernão Magalhães   +5 more
openaire   +2 more sources

TIMASSS : The IRAS16293-2422 Millimeter And Submillimeter Spectral Survey: Tentative Detection of Deuterated Methyl Formate (DCOOCH3) [PDF]

, 2010
High deuterium fractionation is observed in various types of environment such as prestellar cores, hot cores and hot corinos. It has proven to be an efficient probe to study the physical and chemical conditions of these environments.
A. Castets, Bacmann, Bennett, Bisschop, Bottinelli, C. Ceccarelli, C. Kahane, C. Vastel, Cazaux, Ceccarelli, E. Caux, Garrod, Hidaka, Hidaka, Horn, Jacq, K. Demyk, Leurini, Margulès, Parise, Parise, Pety, Pillai, Ratajczak, Roberts, S. Bottinelli, Tielens, Turner, Watanabe, Weber   +29 more
core   +3 more sources