Results 61 to 70 of about 6,007 (233)

Boosting the Photoluminescence of Au@Cu12 Nanoclusters via Strategic Fluorine‐Atom Ligand‐Shell Engineering

Journal of the Chinese Chemical Society, EarlyView.
The photophysical performance of gold‐doped copper‐rich nanoclusters can be tuned by surface functionalization. Subtle ligand modification enhances intermolecular interactions, thereby reducing nonradiative decay and markedly improving photoluminescence. Comparative photographs and quantum yield values (Φ = 55% vs.
Navya Indla, Wei‐Jung Yen, Yu‐Rong Ni, Jian‐Hong Liao, Xiaoping Wang, Michael N. Pillay, C. W. Liu   +6 more
wiley   +1 more source

Quantitative neutron characterization of dislocation-nanoprecipitate synergistic strengthening in additively manufactured FeCoNiAlTi high-entropy alloy with ultrahigh yield strength

Journal of Materials Research and Technology
Introducing dislocations and nanoprecipitates is an effective strategy to strengthen alloys, but reliable bulk quantification of dislocation density and coherent nanoprecipitate content remains challenging.
Jinqiang Shi, Jiazheng Hao, Huaile Lu, Sihao Deng, Zhijian Tan, Feiran Shen, Lunhua He, Gang Wang   +7 more
doaj   +1 more source

Multiproxy Chronologies of the Hurd Rock Glacier (Livingston Island, South Shetland Islands, Maritime Antarctica): Between the Late‐Stage Stabilization and Flow Deceleration

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT The Hurd Rock Glacier, located on Livingston Island (South Shetland Islands archipelago, Maritime Antarctica), is a tongue‐shaped feature composed of angular boulders, displaying transverse ridges and furrows, and featuring lobate structures, which are more prominently developed in its frontal sector.
Rosana Menéndez‐Duarte, Jesús Ruiz‐Fernández, Laura Rodríguez‐Rodríguez, José M. Fernández‐Fernández, Vincent Rinterknecht, ASTER Team   +5 more
wiley   +1 more source

NeuDiff Agent: a governed AI workflow for single‐crystal neutron crystallography

Journal of Applied Crystallography, EarlyView.
NeuDiff Agent accelerates the TOPAZ single‐crystal neutron diffraction workflow at the Spallation Neutron Source from measured data to a structure suitable for publication through governed tool execution, auditable provenance and checkCIF assessment.Large‐scale facilities increasingly face analysis and reporting latency as a limiting step in scientific
Zhongcan Xiao, Leyi Zhang, Guannan Zhang, Xiaoping Wang   +3 more
wiley   +1 more source

High energy particle background at neutron spallation sources and possible solutions

, 2014
Modern spallation neutron sources are driven by proton beams ∼ GeV energies. Whereas low energy particle background shielding is well understood for reactors sources of neutrons (∼20 MeV), for high energies (100s MeV to multiple GeV) there is potential ...
Greene, G., Bentley, Phillip, Hall-Wilton, Richard,, Deen, Pascale, Herwig, K.,, Greene, G.,, Bentley, P. M.,, Connatser, Robert, Deen, P.,, Ehlers, G.,, Kanaki, K., Hall-Wilton, Richard, Kanaki, K.,, Kittelmann, T.,, Kittelmann, T., Ehlers, G., Carpenter, J.,, Herwig, K., Cherkashyna, N., Cherkashyna, Nataliia, Connatser, R., Carpenter, J., Filges, U., Cherkashyna, N.,, Bentley, P. M., Connatser, R.,, Deen, P., Filges, U.,, Kanaki, Kalliopi   +28 more
core   +1 more source

Noble gases and nitrogen in material from asteroid Bennu

Meteoritics &Planetary Science, EarlyView.
Abstract We report the elemental and isotopic abundances of all stable noble gases (helium, neon, argon, krypton, and xenon) in eight particles from asteroid Bennu returned by NASA's OSIRIS‐REx mission. We also report nitrogen abundances and isotopic ratios that were analyzed alongside neon and argon in four additional Bennu particles.
B. Marty, L. Zimmermann, E. Füri, D. V. Bekaert, J. J. Barnes, A. N. Nguyen, H. C. Connolly, D. S. Lauretta   +7 more
wiley   +1 more source

Detector rates for the Small Angle Neutron Scattering instruments at the European Spallation Source

, 2018
Building the European Spallation Source (ESS), the most powerful neutron source in the world, requires significant technological advances at most fronts of instrument component design. Detectors are not an exception.
Kittelmann, T.,, Kittelmann, T., Jaksch, S., Zagyvai, P., Albani, G., Zagyvai, P.,, Klausz, M., Jackson, A., Albani, G.,, Hall-Wilton, R., Klausz, M.,, Hall-Wilton, R.,, Jaksch, S.,, Cippo, E. Perelli,, Jackson, A.,, Nielsen, T.,, Cippo, E. Perelli, Kanaki, K., Lund University., Nielsen, T., Hall-Wilton, Richard, Kanaki, K.,   +21 more
core   +1 more source

An ultra-tunable platform for molecular engineering of high-performance crystalline porous materials

Nature Communications, 2016
Synthetic design of crystalline porous materials is important for applications such as catalysis and adsorption. Here, the authors demonstrate a platform for the development of crystalline porous materials with a variety of organic ligands and metallic ...
Quan-Guo Zhai, Xianhui Bu, Chengyu Mao, Xiang Zhao, Luke Daemen, Yongqiang Cheng, Anibal J. Ramirez-Cuesta, Pingyun Feng   +7 more
doaj   +1 more source

Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight

Experimental Physiology, EarlyView.
Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley   +1 more source

Observing the invisible: X‐ray CT for plant–microbe interactions

New Phytologist, Volume 251, Issue 3, Page 959-966, August 2026.
Utility of X‐ray computed tomography (X‐ray CT) for visualising belowground plant interactions between multiple spatial scales and focal planes. Summary Plant–microbe interactions are inherently spatial, yet the physical structure of the soil and rhizosphere is rarely treated as a mechanistic variable in experimental design.
Eric C. Pereira, Chris A. Bell
wiley   +1 more source