The Experts below are selected from a list of 43197 Experts worldwide ranked by ideXlab platform
Zhihong Yang - One of the best experts on this subject based on the ideXlab platform.
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dielectric and magnetic properties of nicuzn ferrite coated sendust flakes through a sol gel approach
Journal of Magnetism and Magnetic Materials, 2013Co-Authors: Zhaoliang Li, Zhihong Yang, Yanhui Yang, Ling Bing KongAbstract:Abstract Sendust flakes (with 9.59% Si, 5.88% Al and balanced Fe) were coated with NiCuZn ferrite nanoparticles by using a simple sol–gel approach. Both the coated and uncoated flakes were characterized by using scanning electron microscopy, X-ray diffraction and vibrating sample magnetometer. Composites made from the Sendust flakes with the in-plane alignment were fabricated via a vacuum infiltration method. Microwave Measurement results indicated that permittivity of the composite made of the coated Sendust flakes was remarkably reduced, with a slight decrease in permeability over 0.1–8.55 GHz. Consequently, the sample with a thickness of 6 mm showed reflection loss exceeding −20 dB at 1.4 GHz, while reflection loss of the composite derived from the uncoated Sendust flakes could not reach −10 dB at the same sample thickness. Therefore, the Sendust flakes coated with NiCuZn ferrite nanoparticles could be promising candidates to develop Microwave attenuation materials.
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Dielectric and magnetic properties of NiCuZn ferrite coated Sendust flakes through a sol–gel approach
Journal of Magnetism and Magnetic Materials, 2013Co-Authors: Zhihong Yang, Zhaoliang Li, Yanhui Yang, Ling Bing KongAbstract:Abstract Sendust flakes (with 9.59% Si, 5.88% Al and balanced Fe) were coated with NiCuZn ferrite nanoparticles by using a simple sol–gel approach. Both the coated and uncoated flakes were characterized by using scanning electron microscopy, X-ray diffraction and vibrating sample magnetometer. Composites made from the Sendust flakes with the in-plane alignment were fabricated via a vacuum infiltration method. Microwave Measurement results indicated that permittivity of the composite made of the coated Sendust flakes was remarkably reduced, with a slight decrease in permeability over 0.1–8.55 GHz. Consequently, the sample with a thickness of 6 mm showed reflection loss exceeding −20 dB at 1.4 GHz, while reflection loss of the composite derived from the uncoated Sendust flakes could not reach −10 dB at the same sample thickness. Therefore, the Sendust flakes coated with NiCuZn ferrite nanoparticles could be promising candidates to develop Microwave attenuation materials.
Ling Bing Kong - One of the best experts on this subject based on the ideXlab platform.
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dielectric and magnetic properties of nicuzn ferrite coated sendust flakes through a sol gel approach
Journal of Magnetism and Magnetic Materials, 2013Co-Authors: Zhaoliang Li, Zhihong Yang, Yanhui Yang, Ling Bing KongAbstract:Abstract Sendust flakes (with 9.59% Si, 5.88% Al and balanced Fe) were coated with NiCuZn ferrite nanoparticles by using a simple sol–gel approach. Both the coated and uncoated flakes were characterized by using scanning electron microscopy, X-ray diffraction and vibrating sample magnetometer. Composites made from the Sendust flakes with the in-plane alignment were fabricated via a vacuum infiltration method. Microwave Measurement results indicated that permittivity of the composite made of the coated Sendust flakes was remarkably reduced, with a slight decrease in permeability over 0.1–8.55 GHz. Consequently, the sample with a thickness of 6 mm showed reflection loss exceeding −20 dB at 1.4 GHz, while reflection loss of the composite derived from the uncoated Sendust flakes could not reach −10 dB at the same sample thickness. Therefore, the Sendust flakes coated with NiCuZn ferrite nanoparticles could be promising candidates to develop Microwave attenuation materials.
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Dielectric and magnetic properties of NiCuZn ferrite coated Sendust flakes through a sol–gel approach
Journal of Magnetism and Magnetic Materials, 2013Co-Authors: Zhihong Yang, Zhaoliang Li, Yanhui Yang, Ling Bing KongAbstract:Abstract Sendust flakes (with 9.59% Si, 5.88% Al and balanced Fe) were coated with NiCuZn ferrite nanoparticles by using a simple sol–gel approach. Both the coated and uncoated flakes were characterized by using scanning electron microscopy, X-ray diffraction and vibrating sample magnetometer. Composites made from the Sendust flakes with the in-plane alignment were fabricated via a vacuum infiltration method. Microwave Measurement results indicated that permittivity of the composite made of the coated Sendust flakes was remarkably reduced, with a slight decrease in permeability over 0.1–8.55 GHz. Consequently, the sample with a thickness of 6 mm showed reflection loss exceeding −20 dB at 1.4 GHz, while reflection loss of the composite derived from the uncoated Sendust flakes could not reach −10 dB at the same sample thickness. Therefore, the Sendust flakes coated with NiCuZn ferrite nanoparticles could be promising candidates to develop Microwave attenuation materials.
Zhaoliang Li - One of the best experts on this subject based on the ideXlab platform.
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dielectric and magnetic properties of nicuzn ferrite coated sendust flakes through a sol gel approach
Journal of Magnetism and Magnetic Materials, 2013Co-Authors: Zhaoliang Li, Zhihong Yang, Yanhui Yang, Ling Bing KongAbstract:Abstract Sendust flakes (with 9.59% Si, 5.88% Al and balanced Fe) were coated with NiCuZn ferrite nanoparticles by using a simple sol–gel approach. Both the coated and uncoated flakes were characterized by using scanning electron microscopy, X-ray diffraction and vibrating sample magnetometer. Composites made from the Sendust flakes with the in-plane alignment were fabricated via a vacuum infiltration method. Microwave Measurement results indicated that permittivity of the composite made of the coated Sendust flakes was remarkably reduced, with a slight decrease in permeability over 0.1–8.55 GHz. Consequently, the sample with a thickness of 6 mm showed reflection loss exceeding −20 dB at 1.4 GHz, while reflection loss of the composite derived from the uncoated Sendust flakes could not reach −10 dB at the same sample thickness. Therefore, the Sendust flakes coated with NiCuZn ferrite nanoparticles could be promising candidates to develop Microwave attenuation materials.
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Dielectric and magnetic properties of NiCuZn ferrite coated Sendust flakes through a sol–gel approach
Journal of Magnetism and Magnetic Materials, 2013Co-Authors: Zhihong Yang, Zhaoliang Li, Yanhui Yang, Ling Bing KongAbstract:Abstract Sendust flakes (with 9.59% Si, 5.88% Al and balanced Fe) were coated with NiCuZn ferrite nanoparticles by using a simple sol–gel approach. Both the coated and uncoated flakes were characterized by using scanning electron microscopy, X-ray diffraction and vibrating sample magnetometer. Composites made from the Sendust flakes with the in-plane alignment were fabricated via a vacuum infiltration method. Microwave Measurement results indicated that permittivity of the composite made of the coated Sendust flakes was remarkably reduced, with a slight decrease in permeability over 0.1–8.55 GHz. Consequently, the sample with a thickness of 6 mm showed reflection loss exceeding −20 dB at 1.4 GHz, while reflection loss of the composite derived from the uncoated Sendust flakes could not reach −10 dB at the same sample thickness. Therefore, the Sendust flakes coated with NiCuZn ferrite nanoparticles could be promising candidates to develop Microwave attenuation materials.
Yanhui Yang - One of the best experts on this subject based on the ideXlab platform.
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dielectric and magnetic properties of nicuzn ferrite coated sendust flakes through a sol gel approach
Journal of Magnetism and Magnetic Materials, 2013Co-Authors: Zhaoliang Li, Zhihong Yang, Yanhui Yang, Ling Bing KongAbstract:Abstract Sendust flakes (with 9.59% Si, 5.88% Al and balanced Fe) were coated with NiCuZn ferrite nanoparticles by using a simple sol–gel approach. Both the coated and uncoated flakes were characterized by using scanning electron microscopy, X-ray diffraction and vibrating sample magnetometer. Composites made from the Sendust flakes with the in-plane alignment were fabricated via a vacuum infiltration method. Microwave Measurement results indicated that permittivity of the composite made of the coated Sendust flakes was remarkably reduced, with a slight decrease in permeability over 0.1–8.55 GHz. Consequently, the sample with a thickness of 6 mm showed reflection loss exceeding −20 dB at 1.4 GHz, while reflection loss of the composite derived from the uncoated Sendust flakes could not reach −10 dB at the same sample thickness. Therefore, the Sendust flakes coated with NiCuZn ferrite nanoparticles could be promising candidates to develop Microwave attenuation materials.
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Dielectric and magnetic properties of NiCuZn ferrite coated Sendust flakes through a sol–gel approach
Journal of Magnetism and Magnetic Materials, 2013Co-Authors: Zhihong Yang, Zhaoliang Li, Yanhui Yang, Ling Bing KongAbstract:Abstract Sendust flakes (with 9.59% Si, 5.88% Al and balanced Fe) were coated with NiCuZn ferrite nanoparticles by using a simple sol–gel approach. Both the coated and uncoated flakes were characterized by using scanning electron microscopy, X-ray diffraction and vibrating sample magnetometer. Composites made from the Sendust flakes with the in-plane alignment were fabricated via a vacuum infiltration method. Microwave Measurement results indicated that permittivity of the composite made of the coated Sendust flakes was remarkably reduced, with a slight decrease in permeability over 0.1–8.55 GHz. Consequently, the sample with a thickness of 6 mm showed reflection loss exceeding −20 dB at 1.4 GHz, while reflection loss of the composite derived from the uncoated Sendust flakes could not reach −10 dB at the same sample thickness. Therefore, the Sendust flakes coated with NiCuZn ferrite nanoparticles could be promising candidates to develop Microwave attenuation materials.
Benjamin W Berg - One of the best experts on this subject based on the ideXlab platform.
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Microwave stethoscope development and benchmarking of a vital signs sensor using computer controlled phantoms and human studies
IEEE Transactions on Biomedical Engineering, 2014Co-Authors: Nuri Celik, Ruthsenne Gagarin, Gui Chao Huang, Magdy F Iskander, Benjamin W BergAbstract:This paper describes a new Microwave-based method and associated Measurement system for monitoring multiple vital signs (VS) as well as the changes in lung water content. The Measurement procedure utilizes a single Microwave sensor for reflection coefficient Measurements, hence the name “Microwave stethoscope (MiSt),” as opposed to the two-sensor transmission method previously proposed by the authors. To compensate for the reduced sensitivity due to reflection coefficient Measurements, an improved Microwave sensor design with enhanced matching to the skin and broadband operation, as well as an advanced digital signal processing algorithm are used in developing the MiSt. Results from phantom experiments and human clinical trials are described. The results clearly demonstrate that MiSt provides reliable monitoring of multiple VS such as the respiration rate, heart rate, and the changes in lung water content through a single Microwave Measurement. In addition, information such as heart waveforms that correlates well with electrocardiogram is observed from these Microwave Measurements. Details of the broadband sensor design, experimental procedure, DSP algorithms used for VS extraction, and obtained results are presented and discussed.