Results 41 to 50 of about 2,715,434 (394)

Sound absorption of lightweight brick containing expanded polystyrene beads and palm oil fuel ash [PDF]

, 2020
Bricks are considered as important and strongest materials being used over the years. Commonly, bricks are made of clay mineral and usually used in construction of building wall. The purpose of this study is to assess the effectiveness of palm oil fuel
Abdul Hamid, N A, Abdul Roni, N, Adnan1, S H, Alisibramulisi, A, Jamellodin, Z, Kamarulzaman, N A, Mohd Sari, K A, Mohd Yassin, N I, Osman, M H, Wahee Anuar, M N A   +9 more
core   +1 more source

Sound absorption properties of wood-based pulp fibre foams

Cellulose, 2021
In this study, sound absorbing materials were produced through foam forming technique using hardwood and softwood pulps with varying chemical composition, ultrastructural, and morphological properties as raw materials.
Jose Cucharero, Sara Ceccherini, T. Maloney, T. Lokki, T. Hänninen   +4 more
semanticscholar   +1 more source

Intramolecular Down‐ and Up‐Conversion in Dimeric Tetracene Complexes Centered via Platinum(II) and Palladium(II)

Advanced Functional Materials, EarlyView.
Metal‐tetracene dimeric complexes are synthesized through the pyridyl coordination to either Pt(II) or Pd(II). Photophysical properties are systematically compared as a function of the metal using steady‐state and time‐resolved spectroscopy. The Pt(II) dimer exhibits efficient intramolecular singlet fission and subsequent intramolecular up‐conversion ...
Yifan Bo, Yuxuan Hou, Melchor Matabuena, Rik R. Tykwinski, Dirk M. Guldi   +4 more
wiley   +1 more source

Study on Sound Absorption Properties of Polyvinyl Chloride (PVC) Film Multicavity Structure Materials

Shock and Vibration
Since the development of industry, sound absorption and noise reduction have gradually become an urgent problem to be solved. Lightweight polymer film materials are very effective in response to sound waves, and sound waves can easily cause vibration of ...
Tingying Zhang, Jiyang Zhang, Pengxuan Zheng, Hong Hou, Ying Xu   +4 more
doaj   +1 more source

Utilizing Agricultural Waste Materials for the Development of Sustainable Sound Absorption Materials [PDF]

Nature Environment and Pollution Technology
Environmental pollution is escalating due to inadequate waste management, with the open burning of agricultural waste being a significant contributor. This process releases various harmful gases into the environment.
Venkatesan B., Kannan V., Raja Priya P. and Karthiga Shenbagam N
doaj   +1 more source

Nonlinear acousto-electric transport in a two-dimensional electron system

, 2000
We study both theoretically and experimentally the nonlinear interaction between an intense surface acoustic wave and a two-dimensional electron plasma in semiconductor-piezocrystal hybrid structures.
A. L. Belostotskii, A. L. Efros, A. O. Govorov, A. V. Chaplik, A. V. Chaplik, A. V. Kalameitsev, A. Wixforth, A. Wixforth, B. A. Auld, C. W. Skorupka, E. Yablonovich, G. R. Nash, G. Weinreich, I. L. Drichko, I. L’Heureux, J. M. Shilton, J. P. Kotthaus, J. R. A. Beale, K. A. Ingebrigtsen, K.-H. Hoffmann, L. I. Magarill, M. J. Hoskins, M. K. Balakirev, M. K. Balakirev, M. Rotter, M. Rotter, M. Rotter, M. Rotter, M. Rotter, N. Botkin, P. K. Tien, P. N. Butcher, R. C. Ho, R. L. Willett, R. M. White, S. H. Simon, V. G. Mozhaev, V. I. Fal’ko, V. I. Talyanskii, V. L. Gurevich, V. L. Gurevich, W. J. Tanski, Yu. V. Gulyaev, Yu. V. Gulyaev   +43 more
core   +2 more sources

Sound Absorption by Tree Bark

, 2019
Proceedings of the ICA 2019 and EAA Euroregio : 23rd International Congress on Acoustics, integrating 4th EAA Euroregio 2019 : 9-13 September 2019, Aachen, Germany / proceedings editor: Martin Ochmann, Michael Vorländer, Janina Fels 23rd International Congress on Acoustics, integrating 4th EAA Euroregio 2019, ICA 2019, Aachen, Germany, 9 Sep 2019 - 13 ...
Li, Mengmeng, van Renterghem, Timothy, Kang, Jian, Botteldooren, Dick   +3 more
openaire   +4 more sources

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

Advanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai, Md Shakhawath Hossain, Nhat Minh Nguyen, Yongliang Chen, Chaohao Chen, Xiaoxue Xu, Quang Thang Trinh, Toan Dinh, Toan Trong Tran   +8 more
wiley   +1 more source

Achieving Chemical Recognition, Recycling, and Circularity With Radical Nanostructures

Advanced Functional Materials, EarlyView.
Here, innovative 3D radical nanostructures based on 4,4′‐dicyano‐2,2′‐biphenylene‐fused tetrazolinyl radical, fabricated on interdigitated gold‐SiO2 hybrid surfaces are presented. They retain their magnetic properties, their morphology and size can can tune, selectively remove them from specific substrate regions using distilled water, and return the ...
Arkaprava Das, Ewa Malgorzata Nowik‐Boltyk, Tobias Junghöfer, Elke Nadler, Farzan Gity, Paul K. Hurley, Zhimin Yang, Andrzej Rajca, Francesco Tavanti, Arrigo Calzolari, Maria Benedetta Casu   +10 more
wiley   +1 more source

Sound absorption properties of aluminum sponges manufactured by infiltration process [PDF]

, 2010
In this paper, the sound absorption properties of aluminum sponges manufactured by infiltration process have been studied. The results show that the sound absorption factor α changes in function of pore size.
Cruz, Luis J., Díaz Sanchidrián, César, Fernández, Patricia, García Cambronero, Luis Enrique, Navacerrada Saturio, María de los Ángeles   +4 more
core   +2 more sources