Results 101 to 110 of about 2,848,964 (389)

Computational simulation of heat transfer and nanofluid flow for two-sided lid-driven square cavity under the influence of magnetic field

Open Physics
The present study investigates the heat transfer for the unsteady, incompressible, two-dimensional mixed convective copper–water nanofluid flow in a lid-driven square cavity in the presence of the magnetic field.
Sharma Madhu, Sharma Bhupendra K., Kumar Anup, Almohsen Bandar, Laroze David, Urbanowicz Kamil   +5 more
doaj   +1 more source

Interferometric length metrology for the dimensional control of ultra-stable Ring Laser Gyroscopes

, 2014
We present the experimental test of a method for controlling the absolute length of the diagonals of square ring laser gyroscopes. The purpose is to actively stabilize the ring cavity geometry and to enhance the rotation sensor stability in order to ...
Belfi, J., Beverini, N., Cuccato, D., Di Virgilio, A., Maccioni, E., Ortolan, A., Santagata, R.   +6 more
core   +1 more source

Functional Materials for Environmental Energy Harvesting in Smart Agriculture via Triboelectric Nanogenerators

Advanced Functional Materials, EarlyView.
This review explores functional and responsive materials for triboelectric nanogenerators (TENGs) in sustainable smart agriculture. It examines how particulate contamination and dirt affect charge transfer and efficiency. Environmental challenges and strategies to enhance durability and responsiveness are outlined, including active functional layers ...
Rafael R. A. Silva, Giulio Fatti, Emanuel Carlos, Guilherme Ferreira, Sumita Goswami, Suman Nandy, Luiz H. C. Mattoso, Elvira Fortunato, Caio G. Otoni, Rodrigo Martins   +9 more
wiley   +1 more source

Laminar Natural Convection in a Square Cavity with a Horizontal Fin on the Heated Wall: A Numerical Study of Fin Position and Thermal Conductivity Effects

Energies
This study numerically examines laminar natural convection within a square cavity that has a horizontally attached adiabatic fin on its heated vertical wall.
Saleh A. Bawazeer
doaj   +1 more source

Two‐Dimensional Materials as a Multiproperty Sensing Platform

Advanced Functional Materials, EarlyView.
Various sensing modalities enabled and/or enhanced by two‐dimensional (2D) materials are reviewed. The domains considered for sensing include: 1) optoelectronics, 2) quantum defects, 3) scanning probe microscopy, 4) nanomechanics, and 5) bio‐ and chemosensing.
Dipankar Jana, Shubhrasish Mukherjee, Dmitrii Litvinov, Magdalena Grzeszczyk, Sergey Grebenchuk, Makars Šiškins, Virgil Gavriliuc, Yihang Ouyang, Changyi Chen, Yuxuan Ye, Meng Yiming, Maciej Koperski   +11 more
wiley   +1 more source

Analyses of an Ultra-Wideband Absorber from UV-B to Middle-IR Utilizing a Square Nanopillar and a Square Hollow Embedded in a Square Cavity of the Top Layer of Multilayer Metamaterials

Photonics
In this study, an ultra-wideband absorber spanning from UV-B to middle-IR was designed and analyzed using a novel structure. The multilayer metamaterial, arranged from bottom to top, consisted of an Al metal layer, a lower SiO2 layer, a graphite layer ...
Chia-Te Liao, Pei-Xiu Ke, Chia-Min Ho, Cheng-Fu Yang, Tung-Lung Wu   +4 more
doaj   +1 more source

Unprecedented Spin‐Lifetime of Itinerant Electrons in Natural Graphite Crystals

Advanced Functional Materials, EarlyView.
Graphite exhibits extraordinary spintronic potential, with electron spin lifetimes reaching 1,000 ns at room temperature ‐ over 100 times longer than graphene‐based devices. Magnetic resonance spectroscopy reveals strong anisotropy: out‐of‐plane spins live 50 times longer than their in‐plane counterparts.
Bence G. Márkus, Dávid Beke, Lili Vajtai, András Jánossy, László Forró, Ferenc Simon   +5 more
wiley   +1 more source

Control of quality factor in laterally coupled vertical cavities

IET Optoelectronics, 2020
In this work, the authors demonstrate the control of quality factor (Q‐factor) is laterally coupled vertical cavities. A 3 μm‐side‐length square cavity directly connected to a 1.5 μm‐width, 10 μm‐length Fabry–Perot (FP) cavity has been fabricated and ...
Si Chen, Henry Francis, Chih‐Hua Ho, Yun‐Ran Wang, Kai‐Jun Che, Mark Hopkinson, Chao‐Yuan Jin   +6 more
doaj   +1 more source

Low-threshold bistability of slow light in photonic-crystal waveguides

, 2007
We analyze the resonant transmission of light through a photonic-crystal waveguide side coupled to a Kerr nonlinear cavity, and demonstrate how to design the structure geometry for achieving bistability and all-optical switching at ultra-low powers in ...
Kivshar, Yuri S., Mingaleev, Sergei F., Miroshnichenko, Andrey E.   +2 more
core   +1 more source

Analysis of the Electrochemical Stability of Sulfide Solid Electrolyte Dry Films for Improved Dry‐Processed Solid‐State Batteries

Advanced Functional Materials, EarlyView.
An adapted processing for solvent‐free argyrodite solid electrolyte films based on insights into degradation mechanisms of the widely used binder polytetrafluoroethylene is presented. By adapting the dry film processing, long‐term cycling in Si||NMC pouch cells is demonstrated over more than 1000 cycles with a capacity retention of more than 80%, and ...
Maria Rosner, Sahin Cangaz, Felix Hippauf, Susanne Dörfler, Burak Aktekin, Thomas Meyer, Anja Henss, Thomas Abendroth, Holger Althues, Jürgen Janek, Stefan Kaskel   +10 more
wiley   +1 more source