Results 111 to 120 of about 23,416 (220)

Confined Chemistry in Space: Zeolite‐Supported Fe13 Nanoclusters Modulate CS Reactivity

Small Structures, Volume 7, Issue 3, March 2026.
The study explores how an Fe13 cluster confined in chabazite reshapes the reaction of CS and H2 under astrochemical conditions. Confinement promotes C–S bond cleavage over hydrogenation, directing chemistry toward CH4 and H2S formation. Additional CS enables CS2 and C2 species. Microkinetic analysis identifies protoplanetary environments where zeolites
Gerard Pareras, Albert Rimola
wiley   +1 more source

Accurate Column Moist Static Energy Budget in Climate Models. Part 1: Conservation Equation Formulation, Methodology, and Primary Results Demonstrated Using GISS ModelE3

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 3, March 2026.
Abstract Column‐integrated moist static energy (MSE) budgets underpin theories of tropical convection and circulation, yet in reanalyses and climate models the budget rarely closes; residuals routinely match the leading terms and mask physical insights.
Kuniaki Inoue, Maxwell Kelley, Ann M. Fridlind, Michela Biasutti, Gregory S. Elsaesser   +4 more
wiley   +1 more source

RETRACTED ARTICLE: A naturally occurring Al-Cu-Fe-Si quasicrystal in a micrometeorite from southern Italy

Communications Earth & Environment
Quasicrystals, solids with rotational symmetries forbidden for crystals, are usually synthesized in the laboratory by mixing specific ratios of selected elemental components in the liquid and quenching under strictly controlled protocols.
Giovanna Agrosì, Paola Manzari, Daniela Mele, Gioacchino Tempesta, Floriana Rizzo, Tiziano Catelani, Luca Bindi   +6 more
doaj   +1 more source

Cryo-EM structures of herpes simplex virus type 1 portal vertex and packaged genome. [PDF]

, 2019
Herpesviruses are enveloped viruses that are prevalent in the human population and are responsible for diverse pathologies, including cold sores, birth defects and cancers.
Bi, Guo-Qiang, Dai, Xinghong, Jih, Jonathan, Liu, Yun-Tao, Zhou, Z Hong   +4 more
core  

Modelling of Lattices of Two-Dimensional Quasi-Crystals

Успехи физики металлов, 2019
We propose the method for modelling of quasi-periodic structures based on an algorithm being a geometrical interpretation of the Fibonacci-type numerical sequences.
V. V. Girzhon, O. V. Smolyakov
doaj   +1 more source

Effects of the Substitution of B and C for P on Magnetic Properties of FePCB Amorphous Alloys

Metals
In the present study, first-principles molecular dynamics simulations were employed to study the effects of small amounts of B and C substituted for P on the structure and magnetic properties of Fe80P13C7, Fe80P10C7B3, and Fe80P8C9B3 amorphous alloys.
Shuwei Lu, Xuan Chen, Qiqi Zheng
doaj   +1 more source

Elusive icosahedral symmetry [PDF]

Nature Chemistry, 2009
openaire   +2 more sources

Ligand‐Driven Structural Modulation and Enhanced Photoluminescence in High‐Nuclearity Ag56 Nanoclusters

Aggregate
Atomically precise silver nanoclusters (AgNCs) offer unique opportunities to correlate structure and photophysical properties, yet enhancing their photoluminescence emission remains challenging due to dominance of non‐radiative decay pathways.
Aoi Akiyama, Sakiat Hossain, Sourav Biswas, Takafumi Shiraogawa, Pei Zhao, Daichi Arima, Tokuhisa Kawawaki, Yoshiki Niihori, Masaaki Mitsui, Masahiro Ehara, Yuichi Negishi   +10 more
doaj   +1 more source

Beyond icosahedral symmetry in packings of proteins in spherical shells. [PDF]

Proc Natl Acad Sci U S A, 2017
Mosayebi M, Shoemark DK, Fletcher JM, Sessions RB, Linden N, Woolfson DN, Liverpool TB.   +6 more
europepmc   +1 more source

Comprehensive experimental datasets of quasicrystals and their approximants

Scientific Data
Quasicrystals are solid-state materials that typically exhibit unique symmetries, such as icosahedral or decagonal diffraction symmetry. They were first discovered in 1984.
Erina Fujita, Chang Liu, Asuka Ishikawa, Tomoya Mato, Koichi Kitahara, Ryuji Tamura, Kaoru Kimura, Ryo Yoshida, Yukari Katsura   +8 more
doaj   +1 more source