Results 91 to 100 of about 599,791 (275)

(Bi,R)2O3 (R: Nd, Sm and Dy) oxides as potential pigments

open access: yes, 2001
In this work we have tackled the feasibility of the colored oxides in the Bi2O3-R2O3 system as ecological inorganic pigments. We have prepared by solid state reaction the mixed oxides (Bi2O3)(1-x)(R2O3)(x), R: Nd, Sm and Dy, with nominal compositions: Nd,
Gonzalvo, B.   +10 more
core   +1 more source

Design, Control, and Clinical Applications of Magnetic Actuation Systems: Challenges and Opportunities

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
This review aims to provide a broad understanding for interdisciplinary researchers in engineering and clinical applications. It addresses the development and control of magnetic actuation systems (MASs) in clinical surgeries and their revolutionary effects in multiple clinical applications.
Yingxin Huo   +3 more
wiley   +1 more source

Remote Desaturation of Unprotected Amines and C─H Amination of Alkanes by Polarity‐Matched N‐Radical Cations

open access: yesAngewandte Chemie, EarlyView.
Highly electrophilic N‐radical cations enable efficient and selective H‐atom transfer (HAT) of unprotected amines. In this exceedingly practical strategy, simple CuCl catalyzes an interrupted Hofmann–Löffler–Freytag (HLF) reaction to afford δ desaturated amines, aza‐heterocycles, and C─H aminated alkanes without protecting groups.
Pavitra Laohapaisan   +6 more
wiley   +2 more sources

Correlation between rare earth elements in the chemical interactions of HT9 cladding

open access: yesNuclear Engineering and Technology, 2018
Metallic fuel has been considered for sodium-cooled fast reactors because it can maximize the uranium resources. It generates rare earth elements as fission products, where it is reported by aggravating the fuel–cladding chemical interaction at the ...
Eun Byul Lee   +3 more
doaj   +1 more source

(Table 5) Results of Sm-Nd isotope study of Late Quaternary lavas from the Elbrus Volcano

open access: yes, 2010
(Table 5) Results of Sm-Nd isotope study of Late Quaternary lavas from the Elbrus ...
Chemyshev, I V   +9 more
core   +1 more source

Sound‐Based Assembly of Magnetically Actuated Soft Robots Toward Enhanced Release of Extracellular Vesicles

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
Magnetic soft robots offer promise in biomedicine due to their wireless actuation and rapid response, but current fabrication methods are complex and have limited cellular compatibility. A new, contactless bioassembly strategy using hydrodynamic instabilities is introduced, enabling customizable, centimeter‐scale robots.
Wei Gao   +5 more
wiley   +1 more source

Sm-Nd Isotopic Studies of Ureilite Novo Urei [PDF]

open access: yes, 2011
Ureilites are ultramafic (harzburgitic) achondrites composed predominantly of olivine and pyroxenes, abundant carbon (graphites and shock-produced diamonds), some metal and sulfides.
Nyquist, L. E.   +3 more
core  

(Table 2) Sm-Nd isotopic analyses of ODP Hole 104-642E

open access: yes, 1989
(Table 2) Sm-Nd isotopic analyses of ODP Hole 104 ...
Taylor, Paul N   +3 more
core   +1 more source

Artificial Intelligence for Advanced Functional Materials: Progress and Emerging Frontiers

open access: yesAdvanced Intelligent Systems, EarlyView.
Artificial intelligence is transforming the discovery of functional materials by linking synthesis, characterization, simulation, and design in unified workflows. Advances in machine learning, autonomous experimentation, and foundation models are accelerating innovation across energy, electronics, and biomedicine, while revealing new frontiers for ...
Cristiano Malica   +38 more
wiley   +1 more source

Iron‐Photocatalyzed Alkene Chloroaminoxylation: A Platform for Orthogonally Activatable Building Blocks

open access: yesAngewandte Chemie, EarlyView.
An iron‐photocatalyzed unsymmetrical 1,2‐hetero(atom)difunctionalization of alkenes enables to install orthogonal C–Cl and C–O (alkoxyamine) handles which provides access to diverse nucleophiles via complementary reactivity (SN and photoredox) at two distinct sites. Detailed mechanistic studies elucidate interesting features of the iron catalytic cycle.
Amrita Chaudhuri   +5 more
wiley   +2 more sources

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