Electronics

A versatile all-optical parity-time signal processing device using a Bragg grating induced using positive and negative Kerr-nonlinearity
The properties of gratings with Kerr nonlinearity and PT symmetry are investigated in this paper. The impact of the gain and loss saturation on the response of the grating is analysed for different input intensities and gain/loss parameters. Potential applications of these gratings as switches, logic gates and amplifiers are also shown.


Research and application of GIS-based medium-voltage distribution network comprehensive technical evaluation system
Comprehensive technical evaluation plays an important role during the course of plan, design, construction, and operation of the medium-voltage (MV) distribution system. Despite of being extensively researched, the evaluation methodology in the developing countries such as China is still not mature. First, this paper presents the comprehensive technical evaluation theory and methods, and then t...
Decentralized coordinated charging of electric vehicles considering locational and temporal flexibility
A method to coordinate the charging of electric vehicles to avoid network congestion issues is proposed. The novelty is that the proposed method uses both the temporal as well as the locational flexibility of the electric vehicles for coordination. Based on the vehicle behavior information (trajectories, parking places and duration, etc…), the algorithm assures that all vehicles can follow th...


Effect of Chloride on Platinum Dissolution
The effect of chloride (from 10ppm to 100ppm) on platinum dissolution during potential cycling in 0.5M H2SO4 solution at 25°C is investigated using a channel flow double electrode. The dissolved platinum in the form of Ptn+ or a Pt chloro complex produced at the upstream electrode is reduced at the downstream electrode. The introduction of 10ppm of chloride does not have a significant effect d...
Reformate-operated SOFC anode performance and degradation considering solid carbon formation: A modeling and simulation study
An elementary kinetic model is established to represent the coupled behavior of (electro)-chemistry, transport and degradation processes in the porous Ni/YSZ anode of solid oxide fuel cells (SOFC). This model is applied to support the development and evaluation of solid carbon formation mechanisms at Ni/YSZ anodes. The simulation of cells, operated on partially reformed hydrocarbons, show that ...


Ultrasubwavelength Ferroelectric Leaky Wave Antenna in a Planar Substrate-Superstrate Configuration
The possibility of achieving directive fan-beam radiation with planar Fabry-Pérot cavity antennas constituted by an upper ferroelectric thin film and a lower ground plane having ultrasubwavelength thickness is studied by means of a simple transverse-equivalent-network approach and a cylindrical leakywave analysis, deriving simple design formulas. The performance of the proposed antenna is inve...
Handover Performance over a Coordinated Contiguous Carrier Aggregation Deployment Scenario in the LTE-Advanced System
Although various carrier aggregation deployment scenarios (CADSs) have been introduced in the LTE-Advanced system, issues related to insufficient eNB coverage that leads to low throughput and high drop call have yet to be solved. This paper proposes a new deployment scenario called coordinated contiguous-CADS (CC-CADS), which utilizes two-component carriers (CCs) that operate on two frequencies...

Scalable Connection-Based Time Division Multiple Access Architecture for Wireless Network-on-Chip
In this paper, we propose a scalable connection-based time division multiple access architecture for wireless NoC. In this architecture, only one-hop transmission is needed when a packet is transmitted from one wired subnet to another wired subnet, which improves the communication performance and cuts down the energy consumption. Furthermore, by carefully designing the central arbiter, the band...
Design of Wideband Coupled Line DC Block with Compact Size
This letter proposes a wideband compact DC block design technique. This DC block has a wide pass-band and wide stop-band and transforms termination impedances. It comprises a pair of coupled lines on a defected ground structure (DGS) with capacitor loading. A periodic DGS pattern increases coupling, and, consequently, a wideband DC block design is allowed with a microstrip process on a high die...

Equivalent Circuit Model of High Speed VCSEL Implemented in Circuit Simulators
Optical interfaces have been recently standardized as the main physical layer interfaces for most short length optical communication systems, such as IEEE802.3ae, OIF-VSR, and the Fiber Channel. As interface speed increases, the requirements for forecasting the optical characteristics of direct modulated laser diodes (LDs) also increase because those standards define the specifications for phys...
The CS-Based Imaging Algorithm for Near-Field Synthetic Aperture Imaging Radiometer
Millimeter-wave synthetic aperture imaging radiometer (SAIR) is a powerful sensor for near-field high-resolution observations. However, the large receiver number and system complexity affect the application of SAIR. To overcome this shortage (receiver number), an accurate imaging algorithm based on compressed sensing (CS) theory is proposed in this paper. For reconstructing the brightness tempe...

A Novel MT Ferrule with Pre-Installed Pre-polished End Fibers (MTPIPE) for Multimode Fibers
The required packaging density has increased and it would be difficult to employ the conventional assembly technique to produce optical circuit boards with multi-fiber connectors. So we designed an MTPIPE (MT ferrules with Pre-Installed Pre-polished End fibers) connector that can be assembling easily and that does not need a polishing process. It is suitable for use with optical circuit boards ...
Calculate Very Fast Transient Current by the Inverse Operation of the Transient Electromagnetic Near Field due to Switch Operation in Gas Insulated Switchgear
For the direct measurement of very fast transient current (VFTC) due to switch operation in gas insulated switchgear (GIS), usually it will interfere the original operation or change the structure of switch. In this paper a method for calculation of transient current caused by the disconnect operation in GIS by the inverse operation of the electromagnetic (EM) near field is presented. A GIS is ...
Investigation on Propagation Characteristics of PD-induced Electromagnetic Wave in T-Shaped GIS Based on FDTD Method
When ultra-high-frequency (UHF) method is applied in partial discharge (PD) detection for GIS, the propagation process and rules of electromagnetic (EM) wave need to be understood clearly for conducting diagnosis and assessment about the real insulation status. The preceding researches are mainly concerning about the radial component of the UHF signal, but the propagation of the signal componen...
Experimental Study on Root Profile of Molten Bridge under Different Current at Low Opening Speed
To study the molten bridge phenomenon of contacts at the initial breaking process, an experimental device of molten bridge between slowly opening contacts was developed. The system consists of the contact moving control module, the circuit load and the observation module. The molten bridge of copper contact under two load conditions 9,V/19,A and 9,V/7.3,A were studied. The voltage and current c...