Results 111 to 120 of about 1,405,714 (262)

Synthesis and magnetic properties of cobalt nickel nanoparticles prepared by chemical reduction methods. [PDF]

, 2007
The purpose of this work was to prepare and characterise CoxNii.x/CoNiO core-shell magnetic nanoparticles which showed magnetic exchange bias. The particles were synthesised using a variety of stabilising surfactants and nucleating seeds, via the polyol ...
Patel, Jalpa Dipesh, Patel, J.D.
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Gap‐Free Information Transfer in 4D‐STEM via Fusion of Complementary Scattering Channels

Advanced Science, EarlyView.
Fused Full‐Field STEM (FF‐STEM) is introduced as a 4D‐STEM imaging modality that combines direct ptychography with tilt‐corrected dark‐field reconstruction in a single acquisition. Fourier‐space fusion using Wiener‐type spectral weighting closes the low‐frequency contrast gap inherent to bright‐field methods, delivering gap‐free, dose‐efficient, near ...
Shengbo You, Georgios Varnavides, Sagar Khavnekar, Nikita Palatkin, Sihan Shao, Mingjian Wu, Daniel Stroppa, Darya Chernikova, Baixu Zhu, Ricardo Egoavil, Stefano Vespucci, Dileep Krishnan, Xingchen Ye, Florian K. M. Schur, Erdmann Spiecker, Philipp Pelz   +15 more
wiley   +1 more source

Criteria for controlling occupational exposure to cobalt [PDF]

"The toxic effects of cobalt (7440484) and the extent of occupational exposures are reviewed in a NIOSH criteria document. The health effects of cobalt exposure on workers in various industries are described, and the findings of various experimental ...

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Black Hole Quencher‐Enhanced Plasmonic Photothermal Conversion

Advanced Science, EarlyView.
Researchers have developed a universal method to boost plasmonic photothermal conversion by attaching black hole quencher (BHQ) molecules to matched metal nanostructures. This hybrid approach increases efficiency by roughly threefold, reaching up to 69.1% in the near‐infrared‐II window.
Ruiyuan Zhang, Xinru Chen, Lin Shen, Jin Li   +3 more
wiley   +1 more source

Study of the Oxidation of Phenol in the Presence of a Magnetic Composite Catalyst CoFe₂O₄/Polyvinylpyrrolidone

Applied Sciences
The development of new catalytic systems based on cobalt and iron compounds for the production of oxygen-containing compounds is an urgent task of chemical technology.
Tatyana V. Shakiyeva, Binara T. Dossumova, Larissa R. Sassykova, Madina S. Ilmuratova, Ulzhan N. Dzhatkambayeva, Tleutai S. Abildin   +5 more
doaj   +1 more source

A novel neutral protease from thermophilic Bacillus strain HUTBS62 [PDF]

Journal of BioScience and Biotechnology, 2012
A novel neutral highly thermostable protease was detected in the culture medium of thermophilic Bacillus strain HUTBS62 isolated from hot-spring located near to the Dead Sea, Jordan.
HAZEM AQEL, FAROUK AL-QUADAN, TAHANI K. YOUSEF   +2 more
doaj  

Cobalt [PDF]

Cover title: Toxicological profile for cobalt : (update)."Prepared by Syracuse Research Corporation under contract no. 205-1999-00024; prepared for U.S. Dept.

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Phonon‐Driven Tetrahedral Tilts Enable Ultralow Bulk Thermal Expansion and Interstitial Oxide‐Ion Migration in Phenacite Solid Electrolytes

Advanced Science, EarlyView.
This work demonstrates a design paradigm of phonon‐driven negative‐thermal‐expansion (NTE) flexible framework that exploits the intrinsic lattice flexibility of NTE frameworks to simultaneously suppress thermal expansion and activate oxide‐ion conduction, offering a promising strategy to mitigate TEC mismatch in solid‐state ionic devices.
Xiaohui Li, Lu liang, Qilong Shi, Xiaoge Wang, Cheng Li, Sihao Deng, Lunhua He, Qiang Li, Kun Lin, Xianran Xing, Xiaojun Kuang   +10 more
wiley   +1 more source

Correlation Analysis and Comprehensive Evaluation of the Mineral Element Content of Sweet Cherry Fruit at Three Developmental Stages Under Three Cultivation Patterns

International Journal of Fruit Science
The mineral element content serves as a crucial reference for assessing fruit quality traits and significantly influences human health. This study examined sweet cherry fruits at 35, 45, and 55 days after flowering, utilizing three cultivation patterns ...
Huimin Zhang, Nan Zhang, Li Wang, Quan Li   +3 more
doaj   +1 more source

Cobalt recovery from copper leach solutions [PDF]

"Significant amounts of cobalt, a strategic and critical metal, are present in readily accessible spent copper leach solutions; for example, recovery of cobalt at two major U.S. copper operations could produce about 1,300,000 lb CO annually, about 13 pct

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