Results 41 to 50 of about 185,027 (296)

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

Response characteristics of methane–air and propane–air premixed flames to sinusoidal oscillations in equivalence ratio (Effects of Lewis number and preferential diffusion)

Journal of Thermal Science and Technology
Flames propagate in mixture flows with inhomogeneous concentration distributions in practical combustors, such as gasoline direct-injection engines and gas turbine engines. Clarifying the effect of fuel-type differences on the response characteristics of
Yosuke SUENAGA, Hideki YANAOKA, Shohei SEO, Komei NIWATA   +3 more
doaj   +1 more source

Nanostructured Ti thin films by magnetron sputtering at oblique angles [PDF]

, 2016
The growth of Ti thin films by the magnetron sputtering technique at oblique angles and at room temperature is analysed from both experimental and theoretical points of view.
Cotrino Bautista, José, Ferrer Fernández, Francisco Javier, García-Martín, José Miguel, García-Valenzuela, Aurelio, Macías Montero, Manuel Jesús, Palmero Acebedo, Alberto, Rico Gavira, Víctor Joaquín, Rodríguez González-Elipe, Agustín, Santiso, José, Álvarez Molina, Rafael   +9 more
core   +1 more source

Linking neurogenesis, oligodendrogenesis, and myelination defects to neurodevelopmental disruption in primary mitochondrial disorders

FEBS Letters, EarlyView.
Mitochondrial remodeling shapes neural and glial lineage progression by matching metabolic supply with demand. Elevated OXPHOS supports differentiation and myelin formation, while myelin compaction lowers mitochondrial dependence, revealing mitochondria as key drivers of developmental energy adaptation.
Sahitya Ranjan Biswas, Porter L. Tomsick, Alicia M. Pickrell, Paul D. Morton   +3 more
wiley   +1 more source

Temperature-dependent in-situ LEIS measurement of W surface enrichment by 250 eV D sputtering of EUROFER

Nuclear Materials and Energy, 2018
Tungsten surface enrichment of EUROFER steel by 250 eV deuterium sputtering is in-situ measured using low energy He+ ion scattering spectroscopy. The samples are irradiated at various temperatures between 300 K and 800 K with a deuterium atom flux of 2 × 
H.R. Koslowski, S.R. Bhattacharyya, P. Hansen, Ch. Linsmeier, M. Rasiński, P. Ström   +5 more
doaj   +1 more source

Oxidation of Au/Ag films by oxygen plasma: phase separation and generation of nanoporosity

Beilstein Journal of Nanotechnology, 2020
The oxidation of Au/Ag alloy thin films using radio-frequency oxygen plasma was studied in this work. It was demonstrated that there is a phase separation occurring between silver and gold.
Abdel-Aziz El Mel, Said A. Mansour, Mujaheed Pasha, Atef Zekri, Janarthanan Ponraj, Akshath Shetty, Yousef Haik   +6 more
doaj   +1 more source

LES flamelet modeling of hydrogen combustion considering preferential diffusion effect

International Journal of Hydrogen Energy, 2023
A flamelet-generated manifold (FGM) method that explicitly considers the preferential diffusion effect, referred to as FGM-PD method, is employed for large-eddy simulations (LESs) of a lean-premixed H2/air low-swirl lifted flame, and the validity is examined by comparing with the experiment. First, the applicability of the FGM-PD method is investigated
Reo Kai, Taiki Tokuoka, Jun Nagao, Abhishek Lakshman Pillai, Ryoichi Kurose   +4 more
openaire   +1 more source

Organizing the interface—Plasma membrane architecture and receptor dynamics in virus‐cell interactions

FEBS Letters, EarlyView.
Plasma membranes contain dynamic nanoscale domains that organize lipids and receptors. Because viruses operate at similar scales, this architecture shapes early infection steps, including attachment, receptor engagement, and entry. Using influenza A virus and HIV‐1 as examples, we highlight how receptor nanoclusters, multivalent glycan interactions ...
Jan Schlegel, Christian Sieben
wiley   +1 more source

Numerical Investigation on the Flame Characteristics of Lean Premixed Methane Flame Piloted with Rich Premixed Flame

Energies
The introduction of the pilot flame can stabilize the lean premixed flame and promote its industrial application. However, the interaction mechanism between the pilot and main flames is complicated.
Lili Zhang, Yongzhang Cui, Pengfei Yin, Wenlong Mao, Pengzhao Zhang   +4 more
doaj   +1 more source

Condensability sieving porous coordination polymer membranes for preferential permeation of C1–C4 alkanes over H2

Advanced Membranes, 2022
Refinery gas contains abundant H2 and a small amount of C1–C4 hydrocarbons. Here, we propose a condensability sieving strategy to realize preferential permeation of hydrocarbons over H2 by developing halogen-induced porous coordination polymer (PCP ...
Xuemeng Jia, De Ao, Zibo Yang, Zhihua Qiao, Yuxiu Sun, Michael D. Guiver, Chongli Zhong   +6 more
doaj   +1 more source