نتایج جستجو برای: shielding effectiveness

تعداد نتایج: 332095  

2014
Y. S. Lee F. Malek E. M. Cheng W. W. Liu F. H. Wee M. N. Iqbal Z. Liyana B. S. Yew F. S. Abdullah

Abstract—This paper presents the electromagnetic interference (EMI) shielding effectiveness of rice husk and carbon nanotubes (RHCNTs) composites in the X-band region (8.2-12.4 GHz). The difference weight ratio of carbon nanotubes (CNTs) were mix with the rice husk. The rectangular waveguide technique was used to measure the complex permittivity of the RHCNTs composites materials. The complex p...

2009
Shailaja Pande BP Singh RB Mathur TL Dhami P Saini SK Dhawan

Electromagnetic interference (EMI) shielding effectiveness (SE) of multi-walled carbon nanotubes-polymethyl methacrylate (MWCNT-PMMA) composites prepared by two different techniques was measured. EMI SE up to 40 dB in the frequency range 8.2-12.4 GHz (X-band) was achieved by stacking seven layers of 0.3-mm thick MWCNT-PMMA composite films compared with 30 dB achieved by stacking two layers of 1...

2014
HEERALAL GARGAMA S. K. CHATURVEDI A. K. THAKUR

This paper presents a reliability based design study of multilayered composites for electromagnetic interference shielding applications. In this study, uncertainties in the design and external variables affecting the shielding effectiveness (SE) are modeled based on probability distributions. Monte Carlo simulation is employed at each design point generated via Latin hypercube sampling approach...

2017
S. Francis Ignacious Ruban

In this modern era, most of the equipment is electrostatic type. But still, in measuring current, we use conservative type. So, we developed a Modified coreless Hall Effect based current sensing method with magnetic shielding. The coreless Hall Effect based measurement method uses hall sensors without iron core. Hall sensors are firmly fixed on the insulated current carrying conductor. The magn...

2017
Han-Seung Lee Hong-Bok Choe In-Young Baek Jitendra Kumar Singh Mohamed A Ismail

An electromagnetic pulse (EMP) explodes in real-time and causes critical damage within a short period to not only electric devices, but also to national infrastructures. In terms of EMP shielding rooms, metal plate has been used due to its excellent shielding effectiveness (SE). However, it has difficulties in manufacturing, as the fabrication of welded parts of metal plates and the cost of con...

2017
Sudesh Jayashantha Pothupitiya Gamage Kihun Yang Ramanaskanda Braveenth Kanthasamy Raagulan Hyun Suk Kim Yun Seon Lee Cheol-Min Yang Jai Jung Moon Kyu Yun Chai

A series of multi-walled carbon nanotube (MWCNT) coated carbon fabrics was fabricated using a facile dip coating process, and their performance in electrical conductivity, thermal stability, tensile strength, electromagnetic interference (EMI) and shielding effectiveness (SE) was investigated. A solution of MWCNT oxide and sodium dodecyl sulfate (SDS) in water was used in the coating process. M...

2015
Changlei Xia Shifeng Zhang Han Ren Sheldon Q. Shi Hualiang Zhang Liping Cai Jianzhang Li

Kenaf fiber-polyester composites incorporated with powdered activated carbon (PAC) were prepared using the vacuum-assisted resin transfer molding (VARTM) process. The product demonstrates the electromagnetic interference (EMI) shielding function. The kenaf fibers were retted in a pressured reactor to remove the lignin and extractives in the fiber. The PAC was loaded into the freshly retted fibe...

2014
Bin Hui Jian Li Qi Zhao Tieqiang Liang Lijuan Wang

A wood-based composite was prepared via simple electroless Ni-Cu-P plating on birch veneer for EMI shielding. The effects of CuSO4·5H2O concentration on the metal deposition, elemental composition, phase structure, surface morphology, wettability, surface resistivity, and shielding effectiveness of coatings were investigated. The coatings were characterized using X-ray diffraction (XRD), X-ray ...

Journal: :Journal of radiation research 2002
Marco Durante Giancarlo Gialanella Gianfranco Grossi Mariagabriella Pugliese Paola Scampoli Tetsuya Kawata Nakahiro Yasuda Yoshiya Furusawa

Computer code calculations based on biophysical models are commonly used to evaluate the effectiveness of shielding in reducing the biological damage caused by cosmic radiation in space flights. Biological measurements are urgently needed to benchmark the codes. We have measured the induction of chromosomal aberrations in human peripheral blood lymphocytes exposed in vitro to 56Fe-ion beams acc...

Journal: :Journal of Architecture and Planning (Transactions of AIJ) 1998

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید