Results 71 to 80 of about 55,131 (281)

Beneficiation of rare earth minerals from Bokan Mountain: Dotson Ridge ore [PDF]

, 2014
Thesis (M.S.) University of Alaska Fairbanks, 2014The purpose of this research work was to study the beneficiation of rare earth ore of the Bokan Mountain -- Dotson Ridge deposit, located near Ketchikan, Alaska.
Narantsetseg, Purevbaatar, Наранцэцэг, Пүрэвбаатар   +1 more
core  

One-dimensional disordered photonic structures with two or more materials

, 2018
Here we would like to discuss the light transmission modulation by periodic and disordered one dimensional (1D) photonic structures. In particular, we will present some theoretical and experimental findings highlighting the peculiar optical properties of:
Bellingeri, Michele, Cassi, Davide, Chiasera, Alessandro, Criante, Luigino, Della Valle, Giuseppe, Ferrari, Maurizio, Kriegel, Ilka, Lukowiak, Anna, Ramponi, Roberta, Scotognella, Francesco, Varas, Stefano, Zur, Lidia   +11 more
core   +1 more source

From Materials to Systems: Challenges and Solutions for Fast‐Charge/Discharge Na‐Ion Batteries

Advanced Energy Materials, EarlyView.
This review systematically analyzes the key characteristics limiting the fast‐charge/discharge capability of Na‐ion batteries (SIBs) from a multi‐scale perspective encompassing electrode materials, the electrode‐electrolyte interface, and the system. Furthermore, it presents practical solution strategies for the fundamental issues arising at each scale,
Bonyoung Ku, Sangbin Park, Sunha Hwang, Sunghyun Lim, Won‐Sub Yoon, Jongsoon Kim   +5 more
wiley   +1 more source

Ytterbium doped nano-crystalline optical fiber for reduced photodarkening

, 2010
We report suppression of photodarkening in Yb-doped nano-crystalline fibers in silica host. The photodarkening induced loss reduced by 20 times compared to Yb-doped aluminosilicate fibers. The laser efficiency of the nano-crystalline fiber was 79%
Bhadra, S.K., Boyland, A.J., Das, S., Kalita, M.P., Pal, M., Paul, M.C., Standish, R.J., Webb, A., Yoo, S.   +8 more
core   +1 more source

Precision Catalysis in Dehydrogenation of Liquid Organic Hydrogen Carriers: Molecular Structure‐Geometry‐Electronic Interplay for Enhanced Hydrogen Evolution

Carbon Energy, EarlyView.
Atomic‐scale design principles for LOHC dehydrogenation: Tailoring geometric and electronic effects in metal catalysts to bridge the molecular structure of LOHC and dehydrogenation performance. ABSTRACT The advancement of hydrogen‐based energy systems necessitates innovative solutions for safe, efficient hydrogen storage and transportation.
Yongxiao Tuo, Jingying Qu, Huailu Sun, Hongwei Gai, Xiangyuan Qu, Junlun Zhu, Xiaohui Sun, De Chen, Xiang Feng   +8 more
wiley   +1 more source

Composites on the basis of Y₂O₃ submicron spheres functionalized with nanosize titania: preparation and characterization

Тонкие химические технологии, 2012
Composites anatase/Y2O3, η-TiO2/Y2O3, Degussa P25/Y2O3 and Hombifine/Y2O3 were prepared by simultaneous dispersion of Y2O3 and TiO2 powders in weakly alkaline aqueous media or dispersion of Y2O3 powders in acidic titania-containing hydrosols followed by ...
N. A. Dulina, L. N. Obolenskaya, A. V. Tolmachev, O. M. Vovk, E. V. Savinkina, G. M. Kuzmicheva, N. V. Sadovskaya, N. A. Prokudina   +7 more
doaj  

Yttrium Oxide nanoparticles induce cytotoxicity, genotoxicity, apoptosis, and ferroptosis in the human triple-negative breast cancer MDA-MB-231 cells

BMC Cancer, 2023
Background Triple-negative breast cancer (TNBC) is a lethal mammary carcinoma subtype that affects females and is associated with a worse prognosis.
Basant Emad, Amr Ahmed WalyEldeen, Hebatallah Hassan, Marwa Sharaky, Ismail A Abdelhamid, Sherif Abdelaziz Ibrahim, Hanan RH Mohamed   +6 more
doaj   +1 more source

Ba2YIrO6: A cubic double perovskite material with Ir5+ ions

, 2016
Materials with a 5d4 electronic configuration are generally considered to have a nonmagnetic ground state (J=0). Interestingly, Sr2YIrO6 (Ir5+ having 5d4 electronic configuration) was recently reported to exhibit long-range magnetic order at low ...
Blum, C. G. F., Brink, J. van den, Büchner, B., Dey, T., Efremov, D. V., Gass, S., Geck, J., Gruner, D., Hess, C., Kataeva, O., Koepernik, K., Maljuk, A., Ritschel, T., Steckel, F., Wolter, A. U. B., Wurmehl, S.   +15 more
core   +1 more source

Growth, processing, and optical properties of epitaxial Er_2O_3 on silicon [PDF]

, 2008
Erbium-doped materials have been investigated for generating and amplifying light in low-power chip-scale optical networks on silicon, but several effects limit their performance in dense microphotonic applications.
Atanackovic, P. B., Clark, A., Jamora, A., Johnson, T. J., Michael, C. P., Painter, O., Sabnis, V. A., Semans, S., Sewell, R., Smith, R., Yuen, H. B.   +10 more
core   +1 more source

Strategies to Enhance Ionic Conductivity of Na3Zr2Si2O12 Solid Electrolyte for Advanced Solid‐State Sodium Batteries

Carbon Energy, EarlyView.
This review presents a comprehensive summary and discussion of some optimization strategies for enhancing room‐temperature ionic conductivity of Na3Zr2Si2PO12 (NZSP) solid electrolyte for solid‐state sodium batteries, including foreign‐ion doping or substitution, sintering behavior modulation, and regulation of chemical composition based on precursors.
Jiawen Hu, Zixing Chen, Xi Wang, Changsheng Ding, Yongfeng Li, Yanfeng Gao   +5 more
wiley   +1 more source