Results 101 to 110 of about 88,461 (308)

Impact of perturbations to nitrogen oxide emissions from global aviation. [PDF]

, 2008
The atmospheric response to perturbations in NO x emissions from global air traffic is investigated by performing a coherent set of sensitivity experiments.
Dessens, O, Keith P. Shine, John A. Pyle, Wild, Oliver, Pyle, John A., Rogers, HL, Oliver Wild, Rädel, Gaby, Dessens, Olivier, Olivier Dessens, Pyle, JA, Gaby Rädel, Kohler, MO, Radel, G, Shine, KP, Wild, O, Köhler, Marcus O., Rogers, Helen L., Helen L. Rogers, Shine, Keith P., Marcus O. Köhler   +20 more
core   +1 more source

A Current Minireview on the Aquatic Environment: Impact of Some Ions from the Food and Metallurgical Industries

The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science
Recent research has shown the high degree of pollution that the metallurgical and food industries can cause to the environment. In this minireview, the impact that various polluting ions, emitted as a result of technological processes specific to the ...
Romică CREȚU, Liviu Cătălin ȘOLEA, Nicolae ȚIGĂU   +2 more
doaj   +1 more source

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

Advanced Engineering Materials, EarlyView.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele, Hossein Ipakchi, Tizazu H. Mekonnen   +2 more
wiley   +1 more source

Biodiesel nitrogen oxides emissions [PDF]

, 2018
Внаслідок глобального потепління на планеті зростає роль використання альтернативних палив. Дизельне біопаливо (біодизель) зменшує викиди сажі у порівнянні з дизельним паливом і покращує баланс вуглекислого газу на планеті.
Колодницька, Руслана Віталіївна, Kolodnytskа, R.V.   +1 more
core  

Redução catalítica seletiva de óxidos de nitrogênio sobre hematita contendo cobre The selective catalytic reduction of no over copper-containing hematite

Química Nova, 2007
The activity of copper-doped hematite in the SCR with propane, in the presence of oxygen, was evaluated in this work. It was found that copper sulfate led to the production of solids with different specific surface areas depending on the amount of copper.
Hadma Sousa Ferreira, Soraia Jesus Oliveira, Maria do Carmo Rangel, Ernesto A. Urquieta-González, Leandro Martins, José Luís Garcia Fierro, Sérgio G. Marchetti   +6 more
doaj   +1 more source

Influence of Si Content and Milling Duration on the Microstructure and Mechanical–Tribological Properties of AlCoCrFeNiSi High‐Entropy Alloys

Advanced Engineering Materials, EarlyView.
Si‐doped AlCoCrFeNi high‐entropy alloys are synthesized by mechanical alloying to reveal the effect of Si content and milling time on phase evolution, microstructural refinement, and tribological behavior. A transition from FCC to BCC structure, significant grain refinement, and enhanced hardness and wear resistance are achieved, with the 4 at% Si ...
Mustafa Okumuş, Mehmet Emin Demir, Sercan Özpınar   +2 more
wiley   +1 more source

Process for Conversion of Lou'er Oxide of Nitrogen to Higher Oxide of Nitrogen [PDF]

Journal of Industrial & Engineering Chemistry, 1912
n ...
openaire   +2 more sources

Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions

Advanced Functional Materials, EarlyView.
This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian, Jingkai Lin, Zhihao Tian, Selusiwe Ncube, Huayang Zhang, Emiliano Cortés, Hongqi Sun, Shaobin Wang   +7 more
wiley   +1 more source

Ferroelectricity in Antiferromagnetic Wurtzite Nitrides

Advanced Functional Materials, EarlyView.
We establish MnSiN2${\rm MnSiN}_2$ and MnGeN2${\rm MnGeN}_2$ as aristotypes of a new multiferroic wurtzite family that simultaneously exhibits ferroelectricity and antiferromagnetism with altermagnetic spin splitting. By strategically substituting alkaline‐earth metals, we predict new materials with coexisting switchable polarization, spin texture, and
Steven M. Baksa, Lin‐Ding Yuan, Stephen D. Wilson, James M. Rondinelli   +3 more
wiley   +1 more source

Formation of Nitrogen Oxides during Combustion [PDF]

, 1990
The formation of nitrogen oxides during combustion of coal is a complex process involving both homogeneous and heterogeneous reaction step.
Grimsberg, Michaël,, Lund University.
core   +2 more sources