Zobrazeno 1 - 10
of 7 238
pro vyhledávání: '"reflection loss"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-14 (2024)
Abstract With the rapid spread of wireless technologies and increasing electromagnetic energy, electromagnetic waves (EMW) have become a severe threat to human health. Therefore, minimizing the harmful effects of electromagnetic wave radiation is pos
Externí odkaz:
https://doaj.org/article/ca9303744bd04b44b1846202d80bcbef
Autor:
Martha Rianna, Graselita M.P. Lumban Batu, Adhere L., Timbangen Sembiring, Muhammad Khalid Hussain, Akrajas Ali Umar, Nanang Sudrajat, Eko Arief Setiadi, Anggito Pringgo Tetuko, Perdamean Sebayang
Publikováno v:
Case Studies in Chemical and Environmental Engineering, Vol 10, Iss , Pp 100965- (2024)
In this research, the BaFe12O19/Co3O4 material was carried out using the mechanical alloying approach with variations in Co3O4 composition of (10, 15, 20) wt%. The characterizations were using XRD, SEM-EDX, and VNA. The results of XRD analysis show t
Externí odkaz:
https://doaj.org/article/fb3dd652d7b74d888300ee77455b8e78
Autor:
Xu-Xiang Cai, Sheng-Jung Tsou, Yuh-Jing Chiou, Ruey-Bin Yang, Sz-Chian Liou, Wen-An Chiou, Hong-Ming Lin, Chung-Kwei Lin
Publikováno v:
Journal of Materials Research and Technology, Vol 27, Iss , Pp 6527-6537 (2023)
The application of magnetic nanocrystalline powders as radar absorption materials is increasingly attracting R&D interest. Severe agglomeration and mass production, however, are critical issues for practical application of magnetic nanoparticles. In
Externí odkaz:
https://doaj.org/article/936818c6dfe64aa780f4e059211200ec
Publikováno v:
ChemPhysMater, Vol 2, Iss 3, Pp 197-206 (2023)
The electromagnetic wave absorption capabilities of an absorber depend on its dielectric and magnetic components, which determine its interfacial polarization, conductivity loss, magnetic loss, and other such mechanisms. In this study, a comprehensiv
Externí odkaz:
https://doaj.org/article/1e5c1d4607c94e5ca5d851b5b3a92858
Autor:
Rafles Sinaga, Wida Banar Kusumaningrum, Yana Taryana, Widya Fatriasari, Zuratul Ain Abdul Hami, Lisman Suryanegara, Holilah Holilah, Yudi Darma
Publikováno v:
Indonesian Journal of Chemistry, Vol 23, Iss 3, Pp 650-660 (2023)
The polymer/ferroferric oxide (Fe3O4) foam and aerogel composites generally exhibit superior radar absorptivity performance. However, these composites have poor mechanical and thermal properties. This study manufactured a polylactic acid (PLA)/Fe3O4
Externí odkaz:
https://doaj.org/article/d0487d19b8d64d9faea3c507a89928db
Autor:
Ruslana Mazurenko, Serhii Prokopenko, Marcin Godzierz, Anna Hercog, Anastasiia Kobyliukh, Grygorii Gunja, Stanislav Makhno, Urszula Szeluga, Petro Gorbyk, Barbara Trzebicka
Publikováno v:
Materials, Vol 17, Iss 5, p 986 (2024)
To create materials that interact effectively with electromagnetic (EM) radiation, new nanosized substituted ferrites (NiZn)1−xMnxFe2O4 (x = 0, 0.5, and 1) anchored on the surface of multi-walled carbon nanotubes (CNTs) have been synthesized. The c
Externí odkaz:
https://doaj.org/article/0c9844d3a4c846a28d7b317477dbc956
Autor:
M.M. Salem, El-Refaie Kenawy, Hesham M.H. Zakaly, Antoaneta Ene, Mohamed M. Azaam, Tarek B. Edries, Di Zhou, Marwa M. Hussein, Anwer S. Abd El-Hameed, Islam M. Nabil, Moustafa A. Darwish
Publikováno v:
Results in Physics, Vol 53, Iss , Pp 106975- (2023)
In the contemporary, digitally–driven era, the prevalence of electronic devices has drastically escalated electromagnetic (EM) pollution levels, marking a significant environmental challenge. Electrospun fiber composites of polyvinylidene fluoride
Externí odkaz:
https://doaj.org/article/2d9409276854498889bfcba463be78a8
Publikováno v:
EURASIP Journal on Wireless Communications and Networking, Vol 2022, Iss 1, Pp 1-19 (2022)
Abstract Cellular network technologies and radar sensing technologies have been developing in parallel for decades. Instead of developing two individual technologies, the 6G cellular network is expected to naturally support both communication and rad
Externí odkaz:
https://doaj.org/article/6b2bd7de6a7e4c07a90ec671635b8b1d
Publikováno v:
Journal of Materials Research and Technology, Vol 20, Iss , Pp 2188-2220 (2022)
The elevated levels of electromagnetic (EM) radiation released by electronic instruments, communication devices, and information processing technologies are becoming a major concern nowadays. Consequently, great effort has been made to develop unique
Externí odkaz:
https://doaj.org/article/733ea9d1f7664b97bf437f570755b888
Publikováno v:
Memories - Materials, Devices, Circuits and Systems, Vol 4, Iss , Pp 100040- (2023)
The performance of a 3D IC is primarily reliant on the selection of an appropriate bump shape. The most prevalent bump shape (cylindrical) is experiencing substantial stress, power loss and crosstalk issues. TSV bump with a tapered structure have rec
Externí odkaz:
https://doaj.org/article/e3d4291b328240308fa816e4019691bd