Results 71 to 80 of about 75,560 (318)

Ternary Synergy in Layered Double Hydroxides for Efficient and Stable Nitrate Reduction

Advanced Functional Materials, EarlyView.
Ternary CuZnFe LDH enables efficient electrocatalytic nitrate‐to‐ammonia conversion via controlled in situ reconstruction: zinc leaching creates porous active sites, copper reduced to metallic copper, while iron oxide keeps stable. Synergistic Cu‐Fe redox coupling drives tandem catalysis (nitrate→nitrite→NH3), achieving 95% Faraday efficiency and ...
Jiaqian Kang, Yuxuan Xiao, Lun Li, Lulu Qiao, Chunfa Liu, Chengcheng Zhong, Pengzhan Sun, Di Liu, Weng Fai Ip, Hui Pan   +9 more
wiley   +1 more source

L3 Dynamics and Poincaré Maps in the Restricted Full Three Body Problem

Open Astronomy, 2012
Poincaré maps are a basic dynamical systems tool yielding information about the geometric structure of the phase space of the system. Poincaré maps are however time consuming to compute.
Pihajoki Pauli, Herrera-Sucarrat Elisabet, Palmer Phil, Roberts Mark   +3 more
doaj   +1 more source

THE RE-PROCESSING RESULTS OF PHOTOGRAPHIC OBSERVATIONS OF ASTEROIDS WITH GAIA CATALOG AT THE MAO NAS OF UKRAINE

Odessa Astronomical Publications, 2019
In total, about 4,500 asteroid po-sitions were determined from photographic observations conducted at the MAO NAS of Ukraine in 1952-1996. These are the early positions of the selected minor planets, mostly bright, the observations of which were ...
S V. Shatokhina, L. V. Kazantseva, V. M. Andruk   +2 more
doaj   +1 more source

An Estimate of the Age Distribution of Terrestrial Planets in the Universe: Quantifying Metallicity as a Selection Effect [PDF]

, 2000
Planets like the Earth cannot form unless elements heavier than helium are available. These heavy elements, or `metals', were not produced in the big bang.
Lineweaver, Charles H.
core   +4 more sources

3D Printing of Functional Mesoporous Silica Monoliths with Embedded Metal and MOF Components

Advanced Functional Materials, EarlyView.
This article presents the development of silica nanocage‐based nano‐inks tailored for digital light processing 3D printing, enabling automated additive manufacturing of mesoporous monoliths. Novel strategies for incorporating metal sites and inducing in situ growth of metal‐organic frameworks are introduced.
Thomas Gaillard, Arianna Bertero, Christine Joly‐Duhamel, Christine Biolley, Bartolomeo Coppola, Nicolas Brun, Anne Galarneau, Tangi Aubert   +7 more
wiley   +1 more source

High‐Performance Recyclable Polyester Elastomers Through Transient Strain‐Stiffening

Advanced Materials, EarlyView.
Transient strain‐crystallization simultaneously strengthens and toughens block polyester elastomers while conserving recyclability. Using controlled polymerization catalysis and commercial monomers, block polyester elastomers outperform current commercial elastomers, entering a new region of tensile mechanical property space.
Chang Gao, Kam C. Poon, Matilde Concilio, Thomas Zinn, Georgina L. Gregory, Charlotte K. Williams   +5 more
wiley   +1 more source

Space-Based Thermal Infrared Studies of Asteroids

, 2015
Large-area surveys operating at mid-infrared wavelengths have proven to be a valuable means of discovering and characterizing minor planets. Through the use of radiometric models, it is possible to derive physical properties such as diameters, albedos ...
Mainzer, A., Trilling, D., Usui, F.
core   +1 more source

DNA‑Directed Assembly of Photonic Nanomaterials for Diagnostic and Therapeutic Applications

Advanced Materials, EarlyView.
DNA‐directed assembly offers a powerful strategy for constructing structured photonic nanomaterials with precise spatial control. This review provides a comprehensive overview of recent advancements in DNA‐assembled photonic nanomaterials for diagnostics and therapeutics, highlighting key design principles, functionalization strategies, and optical ...
Longjiang Ding, Bing Liu, Andreas Peil, Sisi Fan, Jie Chao, Na Liu   +5 more
wiley   +1 more source

Star Hoppers: Planet Instability and Capture in Evolving Binary Systems

, 2012
Many planets are observed in stellar binary systems, and their frequency may be comparable to that of planetary systems around single stars. Binary stellar evolution in such systems influences the dynamical evolution of the resident planets.
Kratter, Kaitlin M., perets, Hagai B.
core   +1 more source

Unraveling the Complexity of the Dzyaloshinskii–Moriya Interaction in Layered Magnets: The Full Magnitude and Chirality Control

Advanced Materials, EarlyView.
In layered magnets, the atomistic Dzyaloshinskii–Moriya interaction (DMI) depends critically not only on the orbital occupancy of the interface layer but also on the sequence of the atomic layers. The effect can be understood by analyzing the contributions of different orbitals to DMI.
Khalil Zakeri, Albrecht von Faber, Sergiy Mankovsky, Hubert Ebert   +3 more
wiley   +1 more source