Results 151 to 160 of about 6,546,850 (243)

Methane emissions from an advancing coal mine section in the Pittsburgh coalbed [PDF]

"The methane emissions from an advancing coal mine section were continuously monitored for 120 days. During this time, the section advanced 2,000 feet into virgin Pittsburgh coalbed producing 54,565 tons of coal with a total methane emission of 91 ...

core  

From Atoms to Reactors: A Critical Review of a Decade of Machine Learning in Heterogeneous Catalysis (2017–2026)

Angewandte Chemie, EarlyView.
Machine learning has digitalized heterogeneous catalysis from the top of the length scale downward: prediction at the atom and the material is now mature, yet the reactor and the process remain the open frontier. This critical review traces a decade of progress across the full catalytic value chain and asks where the next decade of impact must be won ...
Rafael Larraz, Avelino Corma
wiley   +2 more sources

Time‐Resolved Multidimensional NMR Spectroscopy Reveals the Bifurcated Folding Pathway of a Thrombin‐Binding DNA G4–Azobenzene Derivative Complex

Angewandte Chemie, EarlyView.
A photoswitchable ligand was used to trigger conformational changes within the thrombin binding aptamer DNA G‐Quadruplex. These reversible ligand driven rearrangements were examined by time‐resolved NMR experiments to gain insight of the dynamic folding landscape of the G‐quadruplex.
Jason Martins, Julia Wirmer‐Bartoschek, Harald Schwalbe   +2 more
wiley   +2 more sources

Structure and Function of a Multi‐Megadalton Virus‐Like Proteolytic Dodecahedron

Angewandte Chemie, EarlyView.
Zuzalysin, a virulence metallopeptidase of the periodontal pathogen Porphyromonas gingivalis, is secreted as a latent, flexible ≈95‐kDa monomer. Calcium triggers cysteine‐switch activation and hierarchical assembly into pentamers, bipentamers, tripentamers, and a ≈5.6‐MDa, ≈355‐Å dodecahedron. Structures at 1.8–3.6 Å reveal a virus‐sized catalytic cage
Mariusz Madej, Arturo Rodríguez‐Banqueri, Danuta Mizgalska, Borys Szmigielski, Zuzanna Nowakowska, Małgorzata Benedyk‐Machaczka, Monika Bzowska, Katarzyna Mikruta, Juan Sebastián Ramírez‐Larrota, Chinanu Agunanne, Olivier Julien, Anthony J. O'Donoghue, Carsten Scavenius, Mario López‐Martín, Enrique Marcos, Łukasz Koziej, Sebastian Glatt, Pablo Guerra, Ulrich Eckhard, Jan Potempa, F. Xavier Gomis‐Rüth   +20 more
wiley   +2 more sources

Methane Activation by B5+ Toward a CB5H2+ Isomer Containing a Planar Tetracoordinate Carbon Atom

Angewandte Chemie, EarlyView.
Methane activation by B5+ yields CB5H2+ through H2 elimination. Electronic‐structure calculations connect the nascent dehydrogenation product to a low‐lying isomer containing a planar tetracoordinate carbon atom. ABSTRACT Planar tetracoordinate carbon (ptC) motifs have been identified predominantly in the global‐minimum structures of gas‐phase clusters
Qin‐Wei Zhang, Qiang Chen, Fernando Murillo, Filiberto Ortíz‐Chi, Rui‐Nan Yuan, Fernando Martínez‐Villarino, Aura Gómez‐Heredia, Hong Niu, Rui Wei, Jiao‐Jiao Chen, Yan‐Bo Wu, Gabriel Merino   +11 more
wiley   +1 more source

Lattice Nitrogen Couples Cuδ+ Stabilization With Pathway Control for CO2‐to‐Methanol Electroreduction

Angewandte Chemie, EarlyView.
Lattice‐incorporated nitrogen regulates amorphous CuO by forming a resilient Cu─N/O coordination environment that suppresses excessive Cu reduction and preserves Cuδ+ sites under reducing conditions. The resulting catalyst enables selective CO2‐to‐methanol conversion, achieving a methanol Faradaic efficiency of 48% in an H‐type cell and a methanol ...
Chengli Rong, Justin Prabowo, Jian Peng, Yangyang Wang, Jiacheng Wu, Di Zhu, Haobo Li, Yuan Chen   +7 more
wiley   +2 more sources

Compositional Uniformity and Thermal Properties of Tetra‑N‑butyl Ammonium Bromide and Tetra‑N‑butyl Ammonium Chloride Mixed Semiclathrate Hydrates

ACS Omega
Motoi Oshima, Satoshi Takeya, Akio Yoneyama, Yusuke Jin, Kiyofumi Suzuki, Jiro Nagao   +5 more
doaj   +1 more source

Integrierte elektromikrobielle Produktion von Itaconsäure aus CO2 im Litermaßstab unter Verwendung von Komagataella phaffii

Angewandte Chemie, EarlyView.
Die Studie stellt ein neuartiges Hybridsystem vor, das die elektrochemische CO2‐Reduktion mit mikrobieller Biosynthese in einem Reaktor verbindet. Mithilfe einer synthetisch autotrophen Hefe wird CO2 zur Herstellung von Itaconsäure genutzt. Unter Nutzung einer Industriehefe zeigen wir das Potenzial dieses Ansatzes für die direkte Umwandlung von CO2 in ...
Paniz Izadi, Manja M. Severinsen Zijlstra, Aykut Kas, Philip Haus, Verena Enzinger, Gregor Lutz, Özge Ata, Simone Bachleitner, Diethard Mattanovich, Falk Harnisch   +9 more
wiley   +1 more source

L-carvone supplementation reduces methane production and modulates rumen fermentation, digestibility and microbial communities <i>in vitro</i>. [PDF]

Front Vet Sci
Jalal H, Pompei L, Giammarco M, Malik MI, Akram S, Akram MZ, Di Domenico M, Ghiaccio F, Colleluori R, Pezzi P, Fusaro I.   +10 more
europepmc   +1 more source

Rumen-derived Prevotella and Megasphaera elsdenii mitigate methane production through functional modulation of rumen microbial metabolism. [PDF]

J Anim Sci Biotechnol
He B, Liu B, Wang X, Xia M, Ding C, Nazar M, Cheng Y, Xiao D.   +7 more
europepmc   +1 more source