The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Market research shows that one of the most intolerable issues in the pack of cigarettes is the cigarette missing. This issue makes substantial adverse effects on a company which needs to be avoided completely. Existing research uses a weight detection method to identity packages with issues. However, the accuracy of weight detection methods is low due to instrument error and complex workshop environment...
A novel wideband bandpass filter based on interdigital couplers is proposed and implemented using a multiple-mode resonator (MMR). In the design, the interdigital coupling is used to form the resonator of low impedance. The first three resonant frequencies of this MMR are properly adjusted to be placed quasi equally within the passband. The interdigital lines at the two sides are deployed so as to...
In this paper, a refined shift-and-invert Arnoldi technique is used to speed the convergence rate of a large scale nonsymmetrical generalized eigenvalue problem by using refined Ritz vectors to approximate the desired eigenvectors. The finite difference frequency domain (FDFD) method combined with refined shift-and-invert Arnoldi can be used to analyze the properties of arbitrary complex close/open...
At low frequencies, quasi static method can be used to analyze grounding networks. In this case, all wires of a grounding network are regarded as having an equipotential due to low frequency or some low frequency approximated processing is used. However, for lightning subsequent return strokes, the frequency components could be up to 20 MHz. In this paper, a very accurate full-wave frequency domain...
The paper investigates the stability of the finite difference time domain (FDTD) method based on the telegraph equations of transmission lines for buried horizontal wires. This kind of FDTD methods based on transmission line (TL) theory needs some closed form expressions for the ground impedance and ground admittance of buried horizontal wires (bare and insulated) for lightning or switching transient...
In this paper, a one-third triangular resonator with two electric walls and two magnetic walls is discussed as a basic resonant element to realize wideband passive circuits. The resonator is fulfilled by taking out about one-third of an isosceles or equilateral triangular resonator of the substrate integrated waveguide (SIW) version and therefore, is called as one-third-mode substrate integrated resonator...
A six-port network based on coplanar waveguide (CPW) interdigitated structures is proposed and presented. Among these six ports, two are isolated ports and two are coupled ports. The left two contain an input port and a direct port. In this paper, the network is designed for dividing the power equally between the two coupled ports and the direct port, namely about 4.8 dB. The return loss is better...
In order to obtain the accurate estimation of SOC (State of Charge) and predicted lithium battery SOH (State of Healthy), this article is based upon the internal resistance of the battery model. By using UKF method, the estimation of SOC and SOH can be carried out in the nonlinear conditions. The UKF algorithm considers the internal resistance of the model parameters and SOC as the state parameters...
In the presence of spatially-varying illumination changes, many intensity-based similarity measures cannot capture the complex interactions among the pixel intensities and result in wrong registration. Residual complexity (RC) measure can solve this problem and provide accurate and robust registration results in the same modality images registration. In this study, RC measure is generalized to nonrigid...
CNTs are an effective reinforcement used to improve the mechanical of metal matrix composites. However, Ni-coated carbon nanotubes reinforced magnesium matrix composites have not been well understood. For this reason, Mg matrix nanocomposites containing 0.5 wt.%, 1.0 wt.%, Ni-coated CNTs was fabricated and the tensile fracture surface of composites was investigated. The UTS of the 0.5 wt.% CNTs/AZ91D...
In order to reveal the Liaohe River estuary wetland ecological environment changes and its influencing factors, given the wetland's complex system with multivariable, high-order, multi-loop and non-linear characteristics, using system dynamics to establish the Liaohe River estuary wetland environmental change simulation model. The results show that: In terms of the current state of development, the...
This study reported the feasibility of flushing remediation of lead (Pb) contaminated soil using thiacalix[4]arenetetrasulfonate (TCAS) reagent. Batch experiments were performed to test the factors influencing remediation of lead (Pb) contaminated soil. The effects of pH value, initial conentration and contact time on the removal capacities of lead (Pb) by TCAS reagent had been studied. The results...
Wireless sensor network (WSN) application for bridge structure health monitoring (SHM), requires a scalable time synchronization service enabling data consistency and coordination. This paper describes the Energy-Balanced time Synchronization protocol (EBS), especially tailored for bridge structure health monitoring application. Through analyzing the characteristics of the bridge SHM, we present the...
This study reported the feasibility of flushing remediation of Cu contaminated soil using thiacalix arenetetrasulfonate (TCAS) reagent. Batch experiments were performed to test the factors influencing remediation of Cu contaminated soil. The effects of pH value, initial conentration and contact time.on the removal capacities of Cu by TCAS reagent had been studied. The results showed that the TCAS...
Urban traffic has become a worldwide problem with the economy developing rapidly, which synthesizes out-of-order jam, energy consumption and GHG emission. An autonomic model is proposed based on the micro behavior simulation of urban traffic, in which an information decision factor is introduced. Thus the travel patterns and choice of the road trip have been controlled and optimized dynamically. Simulation...
A adsorbent for cadmium had been prepared by loading an anion-exchange resin with a novel supramolecular compound named thiacalix[4]arenetetrasulfonate (TCAS). The adsorption properties of Cd2+ on TCAS-adsorbed resin had been studied and the effects of varying temperature, pH value, adsorption time and initial conentration. Batchwise extraction studies had revealed a high adsorption ability of the...
A sensitive and fast analytical method using purge-and-trap (P&T) on-line coupling with gas chromatography was developed for the determination of four trace volatile halohydrocarbons including methylene, chloroform, carbon tetrachloride and trichloroethylene in water. The analytes were purged for 10min from the sample by high purity nitrogen and preconcentrated in the cooled trap at -80 degC ...
In this work, a reliable method for simultaneous determination 15 organochlorinepesticide (OCP) residues (alpha-HCH, beta-HCH, gamma-HCH, delta-HCH, hexachlorobenzene, heptachlor, aldrin, alpha-chlordane, gamma-chlordane, dieldrin, endrin , O,P'-DDE, O,P'-DDT ,P,P'-DDT and P,P'-DDD) in soil was reported. The method was based on sonicated extraction with a mixture of acetone and petroleum ether (50:50,v/v)...
In order to improve the simulation efficiency, this paper presents a kind of switch-averaged model for the energy storage system to analyze its stability. This energy storage system is applied in metro vehicles that use supercapacitors as the energy storage elements to provide desired management of the power flows. In order to achieve quick response, an effective and simple control method using state...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.