Efficient and accurate state detection of transmission cables is an important means to ensure reliable transmission. Aiming realize fast efficient cable analysis with the help a binocular vision tool on loop dismantling robot, this paper proposes recognition method combining motion control image segmentation technology. In method, fuzzy ...

We introduce a method to experimentally measure the monochromatic transmission matrix of a complex medium in optics. This method is based on a spatial phase modulator together with a full-field interferometric measurement on a camera. We determine the transmission matrix of a thick random scattering sample. We show that this matrix exhibits statistical properties in good agreement with random m...

The ground impedance matrix elements of a multiconductor overhead transmission line do not have analytical inverse Fourier transforms in the time domain. Thus, in general, the ground transient resistance matrix elements are to be determined numerically. Using the low-frequency approximation analytical expressions are available for the ground transient resistance. These expressions present howev...

A method for enhancing the photoluminescence of silicon nanocrystals in a oxide matrix by fabrication periodic surface structures through laser irradiation is demonstrated. ArF excimer lasers are used to produce line material ablation. Photoluminescence, Raman, and transmission electron microscope measurements consistently show formation crystalline after high-temperature annealing. 2.6-fold en...

This paper presents the numerical validation of a new on-line location method partial discharge (PD) in cables Medium Voltage (MV) power networks based on electromagnetic time reversal (EMTR) theory. Because PD events are symptom cable insulation degradation, PDs localization is key topic for fault prevention networks, increasing their reliability and resilience to guaranteeing electricity secu...

The transmission line project cost index, which reflects price changes of transmission line project components affecting project cost, is an integrated indicator. Based on the constitution of the transmission line project cost index, 324 transmission line project cost index during 2002 and 2010 were selected, in order to describe variation tendency of the transmission line project cost index in...

Dual scattering channel (DSC) schemes naturally extend the transmission line matrix (TLM) numerical method beyond the lines set up by P.B. Johns and coworkers. Conceptually, DSC schemes retain from TLM the typical formal splitting of the computed fields into incident and reflected components, interchanged and scattered between adjacent cells, without yet a need for transmission lines. They gene...

In Communication‐Based Train Control (CBTC) systems, random transmission delays and packet drops are inevitable in the wireless networks, which could result in unnecessary traction, brakes or even emergency brakes of trains, losses of line capacity and passenger dissatisfaction. This paper applies predictive function control technology with a mixed  H H / 2 contr...