Results 91 to 100 of about 20,573,428 (292)
The variability of giraffe skull morphology
Journal of Anatomy, EarlyView.What does giraffe skull shape tell us about their development and evolution? Abstract Giraffe (Giraffa spp.) are among the most unique and charismatic extant animals, largely due to their distinct morphology. The evolutionary and developmental origin of ossicones is a key factor in giraffid biology, yet other features building their characteristic head
Nikolaos Kargopoulos +15 more
wiley +1 more source
, 2005 Zeolite films supported on inert material are a novel type of catalyst that could provide interesting activity and selectivity properties. Such materials will see application in catalytic distillation as reactive packings and in novel low pressure drop ...
Msimang, Velaphi Zakhele
core
, 2006 The Mo/ZSM-5 catalysts were synthesized by solid-state reaction with the mixture of MoO3 and HZSM-5 under N-2 atmosphere at 500 degrees C, and characterized by XRD, MAS NMR, BET, NH3-TPD, FT-IR and powder XRD structural analysis.
Chen, HY +14 more
core +1 more source
Selective Hydrogenation of Formamide to Methanol Over Supported Platinum Catalysts
Angewandte Chemie, Volume 138, Issue 25, 15 June 2026.Amine–CO2 adducts can be hydrogenated to formamides and subsequently to methanol under mild conditions (<150°C), establishing an integrated CO2 capture‐and‐conversion route in a heterogeneous system that directly links amine sorbent cycling with methanol synthesis.
Xuetao Qin +6 more
wiley +2 more sources
Point mutation in zinc sensor causes a threefold zinc level increase in Sorghum bicolor
New Phytologist, EarlyView.Point mutation in sensor triples zinc levels in Sorghum bicolor.
Feixue Liao +4 more
wiley +1 more source
Frontiers in Chemistry, 2018 The valorization of lignin that derives as by product in various biomass conversion processes has become a major research and technological objective.
P. Lazaridis +3 more
semanticscholar +1 more source
A novel carbon/ZSM-5 nanocomposite membrane with high performance for oxygen/nitrogen separation
, 2006 A novel carbon/ZSM-5 nanocomposite membrane is successfully prepared by incorparating nano-sized ZSM-5 into polymeric precursor(polyimide), which shows excellent permselectivities for separation of oxygen/nitrogen gas ...
Qiu, JS +4 more
core +1 more source
Consequences of Medium‐Pore Zeolite Constraints for Alkene Cracking—The Case of n‐Pentene
Angewandte Chemie, Volume 138, Issue 25, 15 June 2026.Alkene cracking in medium‐pore zeolites is governed by a balance of enthalpic and entropic effects. Intrinsic barriers are quantified and shown to be lower than for alkanes due to stabilization of carbenium‐ion‐like transition states. Confinement and extra‐framework aluminum modulate reactivity by tuning transition‐state energetics, providing a ...
Ruixue Zhao +4 more
wiley +2 more sources
USE OF A LOW-COST TEMPLATE-FREE ZSM-5 FOR ATMOSPHERIC PETROLEUM RESIDUE PYROLYSIS
Química Nova, 2016 To understand the physicochemical properties and catalytic activity during the pyrolysis of atmospheric petroleum residue, a template-free ZSM-5 zeolite was synthesized using a direct method without additional seeds or an organic structure director and ...
Vinícius P. S. Caldeira +4 more
doaj +1 more source
Local Evolution of a Prenoon Drainage Plume
Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.Abstract Plasmaspheric drainage plumes are typically observed in the postnoon sector during geomagnetic storms, but their local evolution in the prenoon sector remains poorly understood. Here, we report in situ observations from the Van Allen Probe, revealing multiple localized enhancements in cold electron density near apogee in the prenoon sector ...
Suk‐Bin Kang +5 more
wiley +1 more source