Results 121 to 130 of about 87,352 (306)

Erratic behavior of platinum-group elements along an olivine–Cr-spinel cotectic in sulfide-undersaturated basaltic magma: roles of Cr-spinel and alloys

Scientific Reports
The behavior of platinum-group elements (PGE) in sulfide-undersaturated primitive magmas may be controlled by crystallization of either Cr-spinel, platinum-group minerals (PGM) or olivine.
Ivan. F. Chayka, Vadim S. Kamenetsky, Anton V. Kutyrev, Sarah-Jane Barnes, Aleksandr S. Stepanov, Sergey E. Konstantinov, Nikolay I. Baykov, Sergey G. Kryazhev, Ivan A. Belousov, Irina A. Zhukova, Vasily D. Scherbakov, Valery M. Kalugin, Alexey V. Ivanov, Nikolay V. Bryanskiy, Jung-Woo Park   +14 more
doaj   +1 more source

Deposition of platinum-group metals in sediment and water bodies along the coastal belt of Ghana [PDF]

Maejo International Journal of Science and Technology, 2011
Water and sediment samples from seven water bodies along the coastal belt of Ghana were assessed for the deposition of platinum-group metals (PGM), i.e. platinum, palladium and rhodium.
David K. Essumang
doaj  

Electrospun Carbon Nanofiber‐Based Multifunctional Electrocatalysts for Zinc‐Air Batteries and Overall Water Splitting: Fabrication, Progress, and Perspective

Rare Metals, EarlyView.
ABSTRACT The development of high‐performance and stable electrocatalysts for oxygen reduction reaction (ORR), oxygen evolution reaction (OER), and hydrogen evolution reaction (HER) plays a critical role in advancing clean energy technologies, including metal‐air batteries and hydrogen production through overall water splitting.
Chen‐Yu Cai, Wen‐Jun Niu, Bing‐Xin Yu, Li‐Yang Xu, Fu‐Ming Wang   +4 more
wiley   +1 more source

Deciphering the Heterogeneity of Pulmonary Macrophages in Response to Fine Particles

Small, EarlyView.
This study introduces a dual‐labeled gold nanoparticle model to capture particle–responsive cells via integrating fluorescence‐activated cell sorting and single‐cell RNA sequencing. Fourteen macrophage subsets are identified with response and function heterogeneity, among which AMs_3, AMs_7, and recMacs_4 subsets show stronger phagocytic activation ...
Qing'e Shan, Zheng Dong, Ning Li, Zijie Zhou, Jiayu Ren, Wei Liu, Feng Xu, Yu Qi, Juan Ma, Yi Liu, Shuping Zhang, Sijin Liu   +11 more
wiley   +1 more source

Parallel machine architecture and compiler design facilities [PDF]

The objective is to provide an integrated simulation environment for studying and evaluating various issues in designing parallel systems, including machine architectures, parallelizing compiler techniques, and parallel algorithms.
Kuck, David J., Padua, David, Sameh, Ahmed, Veidenbaum, Alex, Yew, Pen-Chung   +4 more
core   +1 more source

Accelerated Catalyst Development via Kinetically Controlled Solid‐State Laser Synthesis and Automated Electrochemical Screening

Small, EarlyView.
A rapid laser‐based method produces metal nanoparticles on carbon under ambient conditions, eliminating the need for solvents and surfactants. By adjusting laser parameters, particle size and uniformity are precisely controlled and rapidly analyzed using X‐ray diffraction.
Mattis Goßler, Huize Wang, Joanna Przybysz, Faisal Gabi Sameer Aldabain, A. Lucía Morales, Andreas Körner, Andreas Göpfert, Andreas Hutzler, Serhiy Cherevko, Marc Ledendecker   +9 more
wiley   +1 more source

Engineering Metastability in Atomic Layer Deposition: Polymorph and Valence Control

Small, EarlyView.
This work presents strategies for stabilizing two types of metastable phases: structural polymorphs and multivalence states via ALD. These approaches focus on lowering the energy barriers required for metastable phase formation, enabling access to metastable states beyond the thermodynamic limits imposed by the low‐temperature conditions of ALD.
Jihoon Jeon, Seung Ho Ryu, Seungwan Ye, Gwang Min Park, Seong Keun Kim   +4 more
wiley   +1 more source

Unsupervised Work Behavior Pattern Extraction Based on Hierarchical Probabilistic Model

IEEJ Transactions on Electrical and Electronic Engineering, EarlyView.
In this study, we address the challenge of analyzing worker behaviors in high‐mix, low‐volume production environments, where traditional supervised learning methods struggle owing to the lack of labeled data and task variability among workers. To overcome these issues, we propose a novel hierarchical approach for unsupervised behavior pattern ...
Issei Saito, Tomoaki Nakamura, Toshiyuki Hatta, Wataru Fujita, Shintaro Watanabe, Shotaro Miwa   +5 more
wiley   +1 more source

Development of Microsatellite Markers for Ex Situ Management of the Harpy Eagle Using Next Generation Sequencing

Zoo Biology, EarlyView.
ABSTRACT The Harpy Eagle (Harpia harpyja), one of the largest birds of prey in the world, is threatened with extinction throughout its entire area of occurrence in the Neotropics. While conservation efforts for the wild populations are crucial, it is also important to focus on ex situ conservation actions.
Mylena Kaizer, Pedro S. Bittencourt, Érico M. Polo, Tânia M. Sanaiotti, Izeni P. Farias, Lorenzo von Fersen, Tomas Hrbek, Aureo Banhos   +7 more
wiley   +1 more source

Degradation of PGM and PGM-free Coatings on PEMWE Porous Transport Layers

ACS Applied Materials & Interfaces
A good and long-term stable electrical contact between the porous anode transport layer (PTL) and the adjacent catalyst layer is essential for efficient polymer electrolyte membrane water electrolyzers. This study describes the extensive comparison of seven titanium passivation-protecting coatings using short- and long-term measurements for at least ...
Lukas Stein, Arne Dittrich, Dominic C. Walter, Patrick Trinke, Boris Bensmann, Richard Hanke-Rauschenbach   +5 more
openaire   +2 more sources