Results 51 to 60 of about 672,871 (380)
Small StructuresTransition metal nitrides (TMNs) electrocatalysts experience rapid performance degradation during oxygen evolution reaction (OER) due to severe and irreversible electrochemical reconstruction, impeding their practical application in electrochemical water
Shihao Wang +4 more
doaj +1 more source
Selected mechanical properties of modified beech wood
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2008 This thesis deals with an examination of mechanical properties of ammonia treated beach wood with a trademark Lignamon. For determination mechanical properties were used procedures especially based on ČSN. From the results is noticeable increased density
Jiří Holan, Lukáš Merenda
doaj +1 more source
MicrobiologyOpen, 2020 The enzyme urease is widespread in nature and catalyzes the hydrolysis of urea to form ammonia and carbonic acid. The high proficiency of the enzyme is associated with a wide range of societal challenges.
Jens Jakob Sigurdarson +2 more
doaj +1 more source
Radical Chemistry in a Femtosecond Laser Plasma: Photochemical Reduction of Ag+ in Liquid Ammonia Solution [PDF]
, 2018 Plasmas with dense concentrations of reactive species such as hydrated electrons and hydroxyl radicals are generated from focusing intense femtosecond laser pulses into aqueous media. These radical species can reduce metal ions such as Au3+ to form metal
Ahsan, Syeda +4 more
core +3 more sources
Current Trends and Future Perspective for Cold Spray Metal‐Ceramic Composites
Advanced Engineering Materials, EarlyView.The use of cold spray (CS) technology for creating cermet deposits, combining ceramic and metallic components, is advancing rapidly. Cermets offer excellent temperature handling and erosion resistance for diverse applications. This review outlines the current state of the art, focusing on the deposition dynamics and strategies to optimize the ...
Romario A. Wicaksono +2 more
wiley +1 more source
Compaction and Melt Transport in Ammonia-Rich Ice Shells: Implications for the Evolution of Triton [PDF]
, 2018 Ammonia, if present in the ice shells of icy satellites, could lower the temperature for the onset of melting to 176 K and create a large temperature range where partial melt is thermally stable. The evolution of regions of ammonia-rich partial melt could strongly influence the geological and thermal evolution of icy bodies.
arxiv +1 more source
The kinetic temperature of a molecular cloud at redshift 0.9: Ammonia in the gravitational lens PKS1830-211 [PDF]
Astron.Astrophys.485:451,2008, 2008 Using the Green Bank Telescope (GBT), we have detected the (J,K) = (1,1) to (10,10) ammonia inversion lines, up to 1030 K above the ground state, in a face-on spiral galaxy viewed against the radio continuum of the lensed background source PKS 1830-211. The ammonia absorption lines, seen at redshift 0.886, appear to be optically thin with absolute peak
arxiv +1 more source
Ornithine-catalyzed urea formation in liver homogenate [PDF]
, 1947 Heretofore attempts to obtain synthesis of urea from ammonia (and carbon dioxide) in cell-free extracts have been unsuccessful. We have found the reaction to proceed in guinea pig liver homogenate.
Borsook, Henry, Dubnoff, Jacob W.
core
Oxide‐Based Ceramic Matrix Composites for High‐Temperature Environments: A Review
Advanced Engineering Materials, EarlyView.This review examines oxide‐based ceramic matrix composites, focusing on their processing, composition, and mechanical properties for high‐temperature applications. Key topics include oxidation resistance, failure mechanisms, and corrosion behavior, with insights into their potential use in aerospace, nuclear power, and other high‐performance industries.
Karthikeyan Ramachandran +2 more
wiley +1 more source
Revista Brasileira de Zootecnia, 2004 Utilizaram-se 12 novilhos 7/8 Holandês-Zebu em três quadrados latinos 4 x 4, constituído de três grupos de peso corporal (250, 350 e 450 kg), alojados individualmente em baias cobertas, por 60 dias (quatro períodos de 15 dias).
Rodrigo Vidal Oliveira +7 more
doaj +1 more source