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A marching-on-in-time (MOT)-based scheme for the analysis of transient scattering from closed surfaces characterized by an impedance boundary condition (IBC) is described. The time-domain integral equations being solved involve no analytical approximation and are free of spurious solutions. The proposed scheme is validated by a host of numerical examples. © 2004 Wiley Periodicals, Inc. Microwave Opt Technol Lett 42: 213–220, 2004; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20256 [ABSTRACT FROM AUTHOR]

A new algorithm is presented for analyzing scattering from two-dimensional (2-D) nonlinear penetrable objects that are illuminated by transient transverse magnetic (TM) polarized fields. The proposed scheme solves a time-domain volume-integral inequation (TDVIE) using a marching-on-in-time (MOT) technique. Numerical results obtained using this technique and the finite-difference-time-domain (FDTD) method are in excellent agreement. © 2000 John Wiley & Sons, Inc. Microwave Opt Technol Lett 26: 419–423, 2000. [ABSTRACT FROM AUTHOR]

Deep neural networks have recently achieved impressive performance on multilabel text classification. However, the uncertainty in multilabel text classification tasks and their application in the model are often overlooked. To better understand and evaluate the uncertainty in multilabel text classification tasks, we propose a general framework called Uncertainty Quantification for Multilabel Text Classification framework. Based on the prediction results produced by traditional neural networks, the aleatory uncertainty of each classification label and the epistemic uncertainty of the prediction result can further be obtained by this framework. We design experiments to characterize the properties of aleatory uncertainty and epistemic uncertainty from the data characteristics and model features. The experimental results show that this framework is reasonable. Furthermore, we demonstrate how this framework allows us to define the model optimization criterion to identify policies that balance the expected training cost, model performance, and uncertainty sensitivity. This article is categorized under:Algorithmic Development > Bayesian Models [ABSTRACT FROM AUTHOR]

A method for modeling singular electric currents near conducting edges within marching-on-in-time (MOT) simulators is presented. The use of singular basis functions in MOT simulators presents unique challenges not encountered in frequency-domain implementations. Numerical results demonstrate that the proposed expansion results in accelerated convergence for scatterers with sharp features. © 2002 Wiley Periodicals, Inc. Microwave Opt Technol Lett 34: 327–332, 2002; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10452 [ABSTRACT FROM AUTHOR]

ABSTRACT A full-wave simulation tool based on the method of moments is developed and validated by experiments to study the feasibility of wireless power transmission in rectangular cavity that emulates satellite interior. Our results demonstrate power transmission efficiency higher than 80% in a cubic cavity with dimension of 1 cubic-meter. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:2518-2522, 2016 [ABSTRACT FROM AUTHOR]

ABSTRACT This letter demonstrates a wireless power transmission scheme based on distributed retro-reflective beamforming experimentally. The wireless power transmitter, which includes eight antennas distributed in space, receives pilot signals from a mobile device and then focuses radio frequency power onto the device's location through analyzing the pilot signals. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:1873-1876, 2015 [ABSTRACT FROM AUTHOR]

Structures composed of two photonic crystal slabs are fabricated, measured, and simulated around 13.5 GHz.Experimental and simulated results are in good agreement. The transmission spectrum is highly sensitive to the distance between the two slabs, which demonstrates that the structures under investigation can be used to achieve displacement sensors. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:432-434, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26558 [ABSTRACT FROM AUTHOR]