نتایج جستجو برای: multi frequency

تعداد نتایج: 924331  

Journal: :Modern Applied Science 2015

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Journal: :NAVIGATION 2019

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Journal: :Physical Review A 2015

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Journal: :Symposium - International Astronomical Union 1982

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Journal: :Microsystems & Nanoengineering 2018

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Journal: :Symposium - International Astronomical Union 1996

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1998
P. N. Best S. A. Eales M. S. Longair S. Rawlings H. J. A. Röttgering

P. N. Best, S. A. Eales, M. S. Longair, S. Rawlings and H. J. A. Röttgering 1 Sterrewacht Leiden, Postbus 9513, 2300 RA Leiden, The Netherlands 2 Department of Physics and Astrophysics, University of Wales Cardiff, P.O.Box 913, Cardiff, CF2 3YB, United Kingdom 3 Cavendish Astrophysics, Madingley Road, Cambridge, CB3 0HE, United Kingdom 4 Department of Astrophysics, University of Oxford, Keble R...

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2014
Chun-Ching Hsiao Sheng-Yi Liu

A methodology is proposed for designing a multi-frequency band pyroelectric sensor which can detect subjects with various frequencies or velocities. A structure with dual pyroelectric layers, consisting of a thinner sputtered ZnO layer and a thicker aerosol ZnO layer, proved helpful in the development of the proposed sensor. The thinner sputtered ZnO layer with a small thermal capacity and a ra...

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Journal: :Astronomy & Astrophysics 2006

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Journal: :Bulletin of the South Ural State University. Ser. Computer Technologies, Automatic Control & Radioelectronics 2015

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