نتایج جستجو برای: near field effect
تعداد نتایج: 2527625 فیلتر نتایج به سال:
the methods which are used to analyze microstrip antennas, are divited into three categories: empirical methods, semi-empirical methods and full-wave analysis. empirical and semi-empirical methods are generally based on some fundamental simplifying assumptions about quality of surface current distribution and substrate thickness. thses simplificatioms cause low accuracy in field evaluation. ful...
asymmetric polyethersulfone (pes) microfiltration flat sheet membranes were composed by the phase inversion method (pim) and were used as supports. composite membranes were fabricated by coating silicone rubber as selective layer. effect of different concentrations of pes and pdms and different solvent such as nmp, dmf and dms effects as pes solvents and support thickness and different coagulat...
Near Field Communication (NFC) technology allows for the implementation of novel contactless payment systems in stationary retail. In this paper, we quantitatively analyze the impact of such systems on a retailer's payment costs on the example of real-world data from a Swiss food retailer. Our results indicate that the introduction of contactless payment under current card fee models would in v...
A new method of calculating the asymmetry parameter from aircraft microphysical observations is discussed and has been applied to aircraft data where direct measurements are available. Recent parameterizations of the asymmetry parameter often are based on theoretical ray-tracing results for simple particle shapes. One recent theory, which has gained prominence, is the use of equivalent surface ...
Moinuddin Ghauri 1,*, Khurram Shahzad 2,*, Abrar Inayat 3, Zulfiqar Ali 4, Waqar Ali Khan 5, Javaid Akhtar 2 and Keith R. Cliffe 6 1 Department of Chemical Engineering, COMSATS Institute of Information Technology, Defence Road, Off Raiwind Road, Lahore 54000, Pakistan 2 Centre for Coal Technology, University of the Punjab, Lahore 54000, Pakistan; [email protected] 3 Department of Sustainable...
In this paper, we propose a methodology for analyzing the near-field coupling between two surface mount device (SMD) inductors using 3-dimensional electromagnetic (3D-EM) model. To develop 3D-EM model, first constitute equivalent circuit of SMD inductor from measured impedance and derive loss tangent parameters. Secondly, damped harmonic oscillator model is introduced to extract effective perme...
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