Results 101 to 110 of about 201,609 (321)

Purcell Enhancement of Parametric Luminescence: Bright and Broadband Nonlinear Light Emission in Metamaterials [PDF]

, 2017
Single-photon and correlated two-photon sources are important elements for optical information systems. Nonlinear downconversion light sources are robust and stable emitters of single photons and entangled photon pairs. However, the rate of downconverted
Atwater, Harry A., Davoyan, Artur R.
core   +1 more source

Understanding and Optimizing Li Substitution in P2‐Type Sodium Layered Oxides for Sodium‐Ion Batteries

Advanced Functional Materials, EarlyView.
This work explores Li‐substituted P2 layered oxides for Na‐ion batteries by crystallographic and electrochemical studies. The effect of lithium on superstructure orderings, on phase transitions during synthesis and electrochemical cycling and on the interplay of O‐ versus TM‐redox is revealed via various advanced techniques, including semi‐simultaneous 
Mingfeng Xu, Giovanni Gammaitoni, Michael Häfner, Eduardo Villalobos‐Portillo, Carlo Marini, Matteo Bianchini   +5 more
wiley   +1 more source

Mechanical and Tribological Behavior of Unsaturated Polyester NanoCarbon Black Composite

Journal of Engineering and Sustainable Development, 2013
Experimental work had been done to demonstrate the effect of nanocarbon black particles (N220) contents on the mechanical and tribological behavior of unsaturated polyester nanocomposite prepared via the ultrasonic wave dispersion method.
Amer Hameed Majeed , Mohammed S. Hamza, Hayder Raheem Kareem   +2 more
doaj  

Properties of circumferential non-propagating waves in functionally graded piezoelectric cylindrical shells

Advances in Mechanical Engineering, 2019
Each guided elastic wave mode is composed of propagating and non-propagating branches. Non-propagating branches associated with complex wavenumbers are substantially different from the propagating ones.
Xiaoming Zhang, Zhi Li, Jiangong Yu, Bo Zhang   +3 more
doaj   +1 more source

Pentagonal 2D Altermagnets: Material Screening and Altermagnetic Tunneling Junction Device Application

Advanced Functional Materials, EarlyView.
From a database of 170 pentagonal 2D materials, 4 candidates exhibiting altermagnetic ordering are screened. Furthermore, the spin‐splitting and unconventional boundary states in the pentagonal 2D altermagnetic monolayer MnS2 are investigated. A MnS2‐based altermagnetic tunneling junction is designed and, through ab initio quantum transport simulations,
Jianhua Wang, Xingyue Yang, Zongmeng Yang, Jing Lu, Pin Ho, Wenhong Wang, Yee Sin Ang, Zhenxiang Cheng, Shibo Fang   +8 more
wiley   +1 more source

Elasticidade, plasticidade, histerese... e ondas

Revista Brasileira de Ensino de Física
Neste artigo é descrito um experimento que permite estudar as propriedades mecânicas de fios sob tração. O experimento requer um monocórdio, no qual o fio é esticado e tangido, um microcomputador com placa de som e um software para análise espectral do ...
Luiz André Mützenberg, Eliane Angela Veit, Fernando Lang da Silveira   +2 more
doaj  

Ultrasonic dispersion (delta V/V) determined from mechanical resonance frequency shifts [PDF]

With standing wave ultrasonic techniques, small changes in phase velocity which result from changes in some external parameter (e.g., temperature or magnetic field) have traditionally been determined by observing shifts in the mechanical resonance ...
Miller, J. G., Moerner, W. E.
core   +1 more source

Acoustoelastic Equations and Lamb Waves Dispersion Characteristics of Finitely Deformed  Biological Soft Tissues with the Growth-Mechanical Coupling

, 2021
Wenbo Wu, Hongbin Zhang, Bing Wang, Weifeng Yuan, Bin Gu, Xi‐Qiao Feng   +5 more
openalex   +1 more source

Modulating Two‐Photon Absorption in a Pyrene‐Based MOF Series: An In‐Depth Investigation of Structure–Property Relationships

Advanced Functional Materials, EarlyView.
This study investigates H4TBAPy‐based metal–organic frameworks (MOFs) ‐ NU‐1000, NU‐901, SrTBAPy, and BaTBAPy ‐ for multiphoton absorption (MPA) performance. It observes topology‐dependent variations in the 2PA cross‐section, with BaTBAPy exhibiting the highest activity.
Simon N. Deger, Helmy Pacheco Hernandez, Yang Cui, Hongxing Hao, Vanessa Ramm, David C. Mayer, Khai‐Nghi Truong, Roland A. Fischer, Jürgen Hauer, Mariana Kozlowska, Alexander Pöthig   +10 more
wiley   +1 more source

The Peano-series solution for modeling shear horizontal waves in piezoelectric plates

EPJ Web of Conferences, 2012
The shear horizontal (SH) wave devices have been widely used in electroacoustic. To improve their performance, the phase velocity dispersion and the electromechanical coupling coefficient of the Lamb wave should be calculated exactly in the design ...
Ben Ghozlen M.H., Njeh A., Ben Salah I.
doaj   +1 more source