Results 51 to 60 of about 95,492 (253)

Stacking‐Engineered Magnonic Topology and Transport in Honeycomb Homobilayers

Advanced Functional Materials, EarlyView.
ABSTRACT Topological magnons have emerged as a promising platform for dissipationless bosonic transport. However, a straightforward and effective strategy to engineer such topological states in real materials has yet to be fully realized. Here, a general scheme for controlling magnonic topological states via stacking engineering in van der Waals ...
Xiaoran Feng, Yingxi Bai, Bo Yuan, Ying Dai, Baibiao Huang, Chengwang Niu, Xiaotian Wang   +6 more
wiley   +1 more source

Evaluation of Green Buildings’ Overall Performance through in Situ Monitoring and Simulations

Energies, 2013
The evaluation of the overall performance of a green building is complex, since many construction, energy and environmental aspects have to be considered.
Francesco Asdrubali, Cinzia Buratti, Franco Cotana, Giorgio Baldinelli, Michele Goretti, Elisa Moretti, Catia Baldassarri, Elisa Belloni, Francesco Bianchi, Antonella Rotili, Marco Vergoni, Domenico Palladino, Daniele Bevilacqua   +12 more
doaj   +1 more source

Miniaturized Spiral Metamaterial Array for a Ventilated Broadband Acoustic Absorber

Shock and Vibration, 2020
The high-efficiency and broadband acoustic reduction performance in a miniaturized free-flow structure remains challenging in acoustic engineering applications due to the contradiction of ventilation and acoustic reduction performance.
Xingxing Liu, Xiang Li, Zhiying Ren
doaj   +1 more source

Covalent Organic Frameworks for Photocatalytic CO2 Reduction: Metal Integration Principles, Strategies and Functions

Advanced Functional Materials, EarlyView.
Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He, Minxian Zhang, Jinqiang Zhang, Hongqi Sun, Shaobin Wang, Xiaoguang Duan   +5 more
wiley   +1 more source

DESIGN, ACOUSTIC PERFORMANCE AND ADDITIVE MANUFACTURING OF HELICOPTER ROTOR BLADES WITH UNCONVENTIONAL SHAPES

Nonconventional Technologies Review, 2023
In this paper, a blade with unconventional structure, corrugations and BERP tip, used in UAV helicopters, was designed, analyzed and additively manufactured. Aerodynamically, the unconventional blade shows better performance compared to the conventional
Gabriela Alexandra Badicu, Sebastian Marian Zaharia, Mihai Alin Pop   +2 more
doaj  

Deterministic hBN Bubbles as a Versatile Platform for Studies on Single‐Photon Emitters

Advanced Functional Materials, EarlyView.
Single‐photon emitters (SPEs) in hBN are promising for quantum technologies; however, in exfoliated samples their activation is required, limiting reproducibility of previous studies. This work introduces a large‐area MOVPE‐grown hBN platform that hosts SPEs without prior activation.
Piotr Tatarczak, Tomasz Fąs, Jan Pawłowski, Aleksandra Krystyna Dąbrowska, Jan Suffczyński, Mateusz Tokarczyk, Piotr Wróbel, Andrzej Wysmołek, Johannes Binder   +8 more
wiley   +1 more source

Quantitative Analysis of Predictors of Acoustic Materials for Noise Reduction as Sustainable Strategies for Materials in the Automotive Industry

Applied Sciences
This study proposes a qualitative analysis for identifying the best predictors for ensuring passive noise control, aiming to achieve superior acoustic comfort in transportation systems.
Bianca-Mihaela Cășeriu, Manuela-Rozalia Gabor, Petruța Blaga, Cristina Veres   +3 more
doaj   +1 more source

Analysis of Sound Absorption Performance of Underwater Acoustic Coating considering Different Poisson’s Ratio Values

Shock and Vibration, 2021
Viscoelastic material acoustic coating plays an important role in noise and vibration control of underwater equipment. The dynamic mechanical properties of the viscoelastic material have a direct effect on the sound absorption performance of the acoustic
Zhuhui Luo, Tao Li, Yuanwei Yan, Zhou Zhou   +3 more
doaj   +1 more source

Concert acoustics: The performers' perspective [PDF]

The Journal of the Acoustical Society of America, 1988
Following each performance during the San Francisco Symphony's recent tours of Europe, Asia, and North America, musicians completed questionnaires evaluating the stage acoutics of the hall in which they had just performed. The questionnaire's format was developed with the input of the Symphony and in deference to an earlier study by A. C. Gade [A.
R. Lawrence Kirkegaard, Robert F. Mahoney, Dana L. Kirkegaard   +2 more
openaire   +1 more source

Fluorine‐Free Soft Nanocomposites for High‐Speed Liquid Impact Repellence

Advanced Functional Materials, EarlyView.
Fluorine‐free soft nanocomposite coatings are developed using silicone oil‐mediated mechanical‐stiffness control, enabling ‘dry’ liquid‐repellent surfaces that resist high‐speed water jet impacts up to ∼60 m/s. By tuning nanoparticle loading and oil content, the coatings also achieve >90% optical transparency, amphiphobicity with impact resistance to ...
Priya Mandal, Vikramjeet Singh, Rohit Gupta, Prasenjit Kabi, Manish K. Tiwari   +4 more
wiley   +1 more source