نتایج جستجو برای: microwave absorbing material

تعداد نتایج: 423750  

2017
H. Bhusan Baskey P. Rama Subba Reddy

In the present work, fabrication and evaluation of low density glass – epoxy (LDGE) composites suitable for absorbing minimum 80 per cent of incident microwave energy in 8 GHz to 12 GHz (X-band) is reported. LDGE composites having different densities were fabricated using a novel method of partially replacing conventional S-glass fabric with low density glass (LDG) layers as the reinforcement m...

2013
Yu Gu Yang Cao Huijuan Chi Qing Liang Yongji Zhang Youyi Sun

The FeCo/Fe3O4 nanocomposite was synthesized using the hydrothermal approach, in which the FeCo alloy and Fe3O4 are formed by one step. The structure of the FeCo/Fe3O4 nanocomposite was characterized by means of Scanning electron microscopy (SEM), X-ray diffraction (XRD) and X-ray energy-dispersive spectrometer spectroscopy (EDX). They show that the mass ratio of FeCo/Fe3O4 strongly depends on ...

2016
Fen Wang Xing Wang Jianfeng Zhu Haibo Yang Xingang Kong Xiao Liu

3D network structure NiFe2O4 was successfully synthesized by a templated salt precipitation method using PMMA colloid crystal as templates. The morphology, phase composition and microwave absorbing properties of as-prepared samples were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), vector network analyzer (VNA), and so on. The results revealed that the 3D network...

Journal: :Chinese Physics 2022

Wave absorbing materials are widely used to prevent military equipment from being detected by radar wave and also serve as civil electromagnetic shielding. The properties of determined a combination the parameters thickness composite material. In actual case, theoretically designed reflection loss peak intensity bandwidth deviate engineered values. There few reports on mechanism about variation...

In this paper, an ideal cylindrical metamaterial invisibility cloak with infinite-length which its electric permittivity and magnetic permeability mapped to the Drude dispersion model is simulated. The sinusoidal plane waves with microwave frequencies used as sources. To this end, the dispersive finite-difference time-domain method (FDTD) used with Convolutional Perfectly Matched Layered (CPML)...

Journal: :Journal of animal science 1975
R C Smith C M Stricker

The ultraviolet absorption spectrum of the cold acid-soluble portion of the blood of steers had a maximum absorption at 297 nanometers. This unusual spectrum was due to the large amount of uric acid riboside that was present. It accounted for over 96% of the material absorbing at 290 nm and for about 50% of the material absorbing at 260 nanometers. Other ultraviolet absorbing compounds present ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید