Results 121 to 130 of about 296,069 (350)

The Effect of Humidity Upon the Absorption of Sound in a Room [PDF]

, 1931
Vern O. Knudsen
openalex   +1 more source

How to Manufacture Photonic Metamaterials

Advanced Materials Technologies, EarlyView.
Metamaterials boast applications such as invisibility and “hyperlenses” with resolution beyond the diffraction limit, but these applications haven’t been exploited in earnest and the market for them hasn’t grown much likely because facile and economical methods for fabricating them without defect has not emerged.
Apurba Paul, Gregory Timp
wiley   +1 more source

Ultrasonic propagation in gases at high temperatures [PDF]

, 1970
Ultrasonic pulse method /1 to 3 MHz/ measures both sound speed and absorption in monatomic and polyatomic gases in a temperature range of 300 to 20000 degrees K at atmospheric pressure.
Carey, C., Carnevale, E. H., Lynworth, L. C., Uva, S.   +3 more
core   +1 more source

Nd(III)‐Based Temperature‐Independent Manometer and Pressure‐Independent Thermometer with Slow Relaxation of Magnetization

Advanced Optical Materials, EarlyView.
The Neodymium(III) macrocyclic complex [NdL(CF3SO3)3] serves as a non‐contact, bifunctional sensor for temperature and pressure, displaying field‐induced Single Molecule Magnet (SMM) behavior. At 3 GPa, triflate rotations halt, triggering a disorder‐order phase transition from centrosymmetric phase α to noncentrosymmetric high‐pressure phase β.
Dawid Marcinkowski, Dominika Prętka, Przemysław Woźny, Jedrzej Kobylarczyk, Agnieszka Siwiak, Dawid Pakulski, Violetta Patroniak, Kinga Roszak, Andrzej Katrusiak, Radovan Herchel, Robert Podgajny, Szymon Sobczak, Natalia Majewska, Sebastian Mahlik, Marcin Runowski, Adam Gorczyński   +15 more
wiley   +1 more source

Sound Absorption Characteristics of Unsaturated Porous Material Calculated by Modified Transfer Matrix Method

Buildings
Porous materials have emerged as one of the most widely employed sound-absorbing materials in practical applications, owing to their excellent sound absorption properties and lightweight nature.
Yiguo Yin, Wei Guan
doaj   +1 more source

Confirming sound absorption characteristics of box absorbers that utilize laser-cut micro-slits on the top surface as the means of sound absorption, with an exploration of different architectural installations [PDF]

, 2008
Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2008.Includes bibliographical references (leaves 22-23).It is believed that the box absorber utilizes viscous forces present in micro-slits on their surfaces to absorb
Matlack, Kathryn H
core  

An investigation on the transmission, reflection, and absorption of sound by different materials [PDF]

, 1916

openalex   +1 more source

Optical Chaos Generation and Applications

Advanced Photonics Research, EarlyView.
This review comprehensively examines optical chaos generation via feedback, injection, and optoelectronic methods, emphasizing bandwidth enhancement and time‐delay suppression. Applications include chaos‐synchronized secure communication, physical random number generation, chaotic lidar for cm‐level detection, distributed fiber sensing, and terahertz ...
Wenhui Chen, Xiaoxin Mao, Junli Wang, Rong Zhang, Longsheng Wang, Zhiwei Jia, Pu Li, Anbang Wang, Yuncai Wang   +8 more
wiley   +1 more source

Preparation and sound absorption performance of low‐carbon fly ash cenosphere plates

International Journal of Ceramic Engineering & Science
A series of low‐carbon fly ash cenosphere plates was prepared using solid waste based cementitious material as binder through a simple process; meanwhile, effects of cenosphere's particle size and size distribution on microstructure and properties were ...
Yongli Yi, Chu Li, Yu Han, Jingkai Nie, Chao Fan, Qiang He   +5 more
doaj   +1 more source

A Method of Measuring the Velocity and Absorption of Sound in Liquids [PDF]

, 1946
J. K. Galt, John R. Pellam
openalex   +1 more source