Results 81 to 90 of about 5,659,205 (204)

Narrow-Band Emitting Phosphor Na₂Cs₂Sr(B₉O₁₅)₂:Eu²⁺ Discovered from Local Structure Similarity with Sulfate Phosphor

, 2022
Narrow-band emitting phosphors are required to improve the performance of phosphor-converted light-emitting diodes. Here, we found a new narrow-band emitting phosphor Na2Cs2Sr(B9O15)2:Eu2+ using the local structure similarity with a known narrow-band ...
Takashi Takeda (339511), Takayuki Nakanishi (1597186), Yukinori Koyama (1601140), Naoto Hirosaki (1333608), Shota Takemura (14266419), Hidekazu Ikeno (4259416), Shiro Funahashi (1333614)   +6 more
core   +1 more source

Modeling temperature profiles in the pedestal of NSTX with reduced models

Nuclear Fusion
This paper describes new modeling capabilities for predicting H-mode pedestal profiles in spherical tokamaks. Temperature profiles for NSTX discharges 132543 (narrow pedestal) and 132588 (wide pedestal, lithiated) are modeled by coupling the astra ...
P.-Y. Li, D.R. Hatch, L.A. Leppin, J. Schmidt, J.F. Parisi, M. Lampert, M. Kotschenreuther, S.M. Mahajan   +7 more
doaj   +1 more source

High‐Efficiency Quantum Defect Generation in Carbon Nanotubes via Oxygen‐Free Photochemistry

Advanced Functional Materials, EarlyView.
We show that oxygen plays an important role in quantum defect formation in carbon nanotubes and identify reaction conditions to create a range of different quantum defects for photonics and biosensing. ABSTRACT Single‐walled carbon nanotubes (SWCNTs) offer potential for a wide range of applications from optoelectronic devices to biomedical diagnostics.
Christina Derichsweiler, Valeriia D. Andreeva, Jan Stegemann, Julia Ackermann, Janus A. C. Wartmann, Svenja Herbertz, Sebastian Kruss   +6 more
wiley   +1 more source

Are spicules driven by oscillations?

Earth and Planetary Physics
The formation of spicules on the solar surface is poorly understood. In the present investigation, we propose a mechanism that provides an explanation for this phenomenon.
ChuXin Chen
doaj   +1 more source

A prática do xamanismo entre os Kaingang do Brasil meridional: uma breve comparação com o xamanismo Bororo

Horizontes Antropológicos, 2002
Os Kaingang, uma sociedade ameríndia da família lingüística Jê, habitantes do sul do Brasil, possuem xamãs, nomeados de kuiã, que provêem de somente uma metade (a metade Kamé) e que dispõem de um animal-auxiliar associado a sua metade de origem. No plano
Robert R. Crépeau
doaj   +1 more source

XTRUDE: A Process‐Informed Framework for High‐Fidelity Analysis of Hydrogel Extrusion

Advanced Functional Materials, EarlyView.
Extrusion performance emerges from the interplay between material properties and processing conditions. XTRUDE (eXTrusion Rheology for Understanding and Defining Extrudability) recreates the extrusion environment with in situ pressure and temperature sensing, enabling characteristic pressure signatures to quantify extrusion‐specific phenomena and ...
Farhad Sanaei, Pascal Bertsch, Juliette Lafosse, Sander C. G. Leeuwenburgh, Mani Diba   +4 more
wiley   +1 more source

A coupled transport model for magnetic hyperthermia in brain tumor therapy: Numerical investigation and analysis

Ain Shams Engineering Journal
Magnetic hyperthermia heats a brain tumor from within, using nanoparticles excited by an external alternating field, but its therapeutic margin is narrow: tissue below 42 ∘ C is untreated while tissue above 50 ∘ C is damaged. We formulate a coupled model
Muhammad Saqib, Ayesha Siddique, Shahid Hasnain, Mohamed Hafez, Muhammad Farman, Evren Hincal   +5 more
doaj   +1 more source

Stabilization of Strongly Reduced Fe(I) Single Atom Species Coordinated in a 2D Self‐Assembled Metal–Organic Network

Advanced Functional Materials, EarlyView.
A graphene‐supported 2D metal–organic network stabilizes highly reactive Fe(I)‐N4 single sites through Co‐induced charge redistribution. Combined experiments and theory reveal Fe(I) formation, oxygen‐driven oxidation, and O2 activation mechanisms, offering a strategy to access low‐valent iron centers relevant to catalytic and biological processes ...
Alessandro Namar, Basant Roondhe, Michela De Col, Stefania Baronio, Matteo Jugovac, Mattia Scardamaglia, Eleanor Frampton, Nikolay Vinogradov, Paolo Giannozzi, Erik Vesselli   +9 more
wiley   +1 more source

Non-existence, radial symmetry, monotonicity, and Liouville theorem of master equations with fractional p-Laplacian

Advances in Nonlinear Analysis
In this article, first, we introduce a new operator (∂t−Δp)su(z,t)=Cn,sp∫−∞t∫Rn∣u(z,t)−u(ζ,ϱ)∣p−2(u(z,t)−u(ζ,ϱ))(t−ϱ)n2+1+sp2e−∣z−ζ∣24(t−ϱ)dζdϱ,{\left({\partial }_{t}-{\Delta }_{p})}^{s}u\left(z,t)={C}_{n,sp}\underset{-\infty }{\overset{t}{\int }}\mathop{
Liu Mengru, Zhang Lihong
doaj   +1 more source

Reaction‐Time pH Stabilization by Poly(acrylic acid) with Ethanol‐Mediated Growth Control for Efficient Hydrothermal Sb2(S,Se)3 Solar Cells

Advanced Functional Materials, EarlyView.
Poly(acrylic acid) acts as a reaction‐time pH buffer during hydrothermal Sb2(S,Se)3 growth through its COOH/COO‐ equilibrium. When combined with ethanol‐regulated growth, this buffering strategy reduces Sb‐O related surface disorder, improves local electronic uniformity and carrier collection, and increases the champion solar‐cell efficiency to 10.25%,
Juhee Lee, Geumha Lim, Wookyung Jeon, Seongju Park, Jinwoo Chu, Yohan Yoon, William Jo, Byungha Shin   +7 more
wiley   +1 more source