Although, due to the high variability of key parameters such as the return-stroke speed, it is impossible to determine the lightning current accurately from the remotely measured electric or magnetic field for a given event, we show in this paper that, for an assumed return-stroke model, the statistical estimation (e.g. in terms of mean values and standard deviations) is possible. We show addit...

This paper presents a tunable bandpass filter based on the varactor-loaded composite rightand left-handed transmission line (CRLH-TL). The proposed filter is composed of one CRLH-TL unit cell, which corresponds to the third-order bandpass filter. The tunable bandpass filter is designed using only lumped-elements. The use of lumped elements saves space and lowers the fabrication cost. The size o...

Improving a tower earthing system by reducing the impedance is an effective solution to prevent back flashover from occurring and thus maintaining sustainable operation of power supply. Knowledge soil structure important element when designing determine parameters transmission line (TL). This paper presents computation interpretation based on several designs using current distribution, electrom...

The location of Transmission Line (TL) Faults is a major problem in Electrical Power Systems (EPSs), since precisely identifying the point occurrence fault TL it possible to perform faster restoration operation desired normal conditions. In this work we used Least-Squares Support Vector Regression (LS-SVR) locate faults with inputs provided by MFCC (Mel-Frequency Cepstral Coefficients) obtained...

BACKGROUND DNA hypomethylation of long interspersed nuclear elements-1 (LINEs-1) occurs during carcinogenesis, whereas information addressing LINE-1 methylation in Wilms tumor (WT) is limited. The main purpose of our study was to quantify LINE-1 methylation levels and evaluate their relationship with relative telomere length (TL) in WT. METHODS We investigated LINE-1 methylation and relative ...

A 6 : 1 unequal Wilkinson power divider that combines the advantages of a coplanar waveguide with an electromagnetic bandgap (EBG CPW) and microstrip line structures suitable for a PCB circuit design is proposed. The highly characteristic impedance transmission line (TL) is realized by employing the proposed EBG CPW structure, which is difficultly achieved using the conventional microstrip line...

The suspended sediment layer occupies the lower water column. Presence of the suspended sediments creates a volume scattering layer which affects acoustic detection. Understanding the acoustic effects of the suspended sediment layer leads to the development of acoustic sensors with capability to scan the seafloor and to detect ordnance such as sea mines. 2. Comprehensive Acoustic Simulation Sys...

this paper proposes a new method for transmission loss allocation. the share of each bus in the transmission line losses is determined using transmission line loss equations with respect to bus-injected currents. then, it is applied to the total network transmission lines. in the proposed method, comparing with other methods, a solution to remove the negative loss allocation has been introduced...

This paper reports the outcomes of an experimental investigation shielding effectiveness (SE) for carbon fibre reinforced polymer (CFRP) composites with varying configurations. It focuses on (1) important parameters affecting SE CFRP laminates and (2) applicability transmission line (TL) theory to predict their properties. Comparison profiles showed that quasi-isotropic cross-ply configurations...

In order to compute the electromagnetic transients in power systems adequately, several papers literature have proposed different approaches properly model ground by its frequency-dependent (FD) soil parameters (conductivity and permittivity). This article presents a brief study on how simulate generated single- phase transmission line (TL) subjected slow- fast-front disturbances. For this anal...