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.
Asymmetric Parallel-Cascaded Micro-ring Resonator (APCMR) and Double Ring Resonator (DDR) structures are an innovative form of Optical filter based on Micro-ring Resonator (MRR). In this paper we investigate comparison between APCMR and DRR structures . Vernier effects occur in the structure of DRR. The DRR structure has low crosstalk and large bandwidth than the APCMR structure.
This paper describing about the tool made by author that used to measure the emission of CRT (cathode ray tube) for televisions and monitors, and can be used as a CRT Injector. The purpose of the design and manufacture of this tool is to learn about the emission of electrons on the CRT screen that is on the RGB cathodes are used as part of producing an image that is emitted by an electron gun to the...
In this paper, a generalized Radio Frequency Identification (RFID) control using posture effect on Ultra High Frequency (UHF) RFID tag detection is proposed. The idea is based on the polarization characteristic of passive tag antenna. When it is placed in horizontal and vertical orientation, the Received Signal Strength Indication (RSSI) measured by the reader antenna will be distinct. Based on the...
Scaling down of the semiconductor devices from micro to Nano scale has now become the trend for the electronics industry and it is the only hope that can ensure lesser power consumption and also reliability. Ultra thin MOSFET's, Double Gate MOSFET's, FINFET and now the latest development is the Nanowire FET. The nanowire FET is a revolutionary device as the gate is all around the channel which provides...
Higher density of population in the urban settings demand more space, and the mechanism to deal with the exponential growth of such demands is to use the three dimensional space for the future smart cities, than the conventional planar dwellings. Such trends create ever new challenges for optimizing energy usage for heating, ventilation, lighting, entertainment, and domestic chores. Occupancy driven...
Power system harmonics are inevitable in the presence of non-linear loads. The presence of harmonics has a greater impact on the terminal apparatus. Accurate analysis of Power system harmonics plays an important role to have a better mitigation. Windowed Interpolated FFT (WIFFT) based algorithms are gaining importance due to their accurate analysis. The major advantage of WIFFT based algorithms includes...
In this paper, a new deadlock-free dynamic turn model named VMCD (vertical-mesh-conscious-dynamic) is proposed for higher performance in 3D NoC. On vertical meshes and odd horizontal meshes, odd-even turn model is applied, while xy routing is utilized on even horizontal meshes. According to the priority of vertical meshes and horizontal meshes, two VMCD routing algorithms are applied based on this...
Arbitration among various clients, requesting multiple resources simultaneously in high throughput system, needs multiple requests selection in single cycle. A new technique for implementation of arbiter, which selects up to two active request is proposed in this paper. 2 selector circuits are designed by modification of existing parallel prefix tree structures for architecture. Design maintains fairness...
The research of vehicular networks has been studied for many years. In actual life, there are a few implementations of V2X communication system, majority of them are extremely expensive. Most importantly, detailed insight implementation procedure hasn't been provided for researches. In this paper, an efficient V2X communication system based on the IEEE 802.11p/1609.X protocol stack, also known as...
This paper presents a microstrip dual-band bandpass filter (BPF) based on cross-shaped resonator and spurline. It is shown that spurlines added into input/output ports of a cross-shaped resonator generate an additional notch band. Using even and odd-mode analysis the proposed structure is realized and designed. The proposed bandpass filter has dual passband from 1.9 GHz to 2.4 GHz and 9.5 GHz to 11...
This paper describes CheckIt: a mobile phone based optical mark recognition(OMR) system which is used for automatic checking of the user response sheets. It exploits prior information about the OMR sheet layout, which helps in achieving high speed and accuracy. The system incorporates following interdependent modules: (i) computer vision and image processing; (ii) computer communication and networking;...
A degraded document image should be cleaned before subjecting to Optical Character Recognition (OCR), otherwise the result may be erroneous. Though major studies have been conducted on degraded document image cleaning, halftone documents received less attention. Since halftone documents contain halftone dot patterns, classical binarization techniques do not produce proper output for feeding into the...
This article discussed a multilevel transistor clamped H-bridge topology for DVR application along with repetitive controller. This five level TCHB inverter topology can be used for low and medium voltage level application of DVR. The repetitive controller used in this paper for DVR application can compensate the three major voltage quality disturbances such as balanced voltage sag, voltage harmonics...
In this paper, an enhanced one-bit-transform-based region of interest (ROI) method is proposed for the infrared small target detection under complex background. This novel method, named as En1BT for short, leverages the local variance weighted information entropy filter to increase the signal-to-noise ratio (SNR), followed by the one-bit transform method to automatically compute a valid threshold...
Energy efficiency is the most challenging topic in Wireless Sensor Networks (WSN). Because of the increasing demands of various applications, and the constraints of energy, memory and computational power of the WSN nodes, many studies have focused on these areas in recent years. Researchers have proposed a variety of protocols such as LEACH, PEGASIS, HEED, TEEN, etc. In this paper, we will discuss...
The massive integration of wind power brings more challenges to the safe operation of power system. In this paper, risk assessment methods of power system with wind power integration are studied by using DSR (dynamic security region) and risk assessment theory. The basic construction method of DSR boundary is introduced. The risk index calculation and comprehensive analysis method of wind power integration...
This paper illustrates a differential protection algorithm for indirect symmetrical phase shifting transformer (ISPST) using wavelet transform (WT). Further, a Multi-Layer Feed Forward Neural Network (MLFFNN) based algorithm has been developed for classification of internal fault in ISPST. Detailed coefficient at level four (D4) of phase current is used as input vector for MLFFN network. Principle...
A two-stage Miller-compensated amplifier with Gm-boosting (MCG) is introduced in this paper. The design involves the conventional two-stage amplifier and a proposed wide-bandwidth scalar circuit that amplifies the output signal voltage at the first stage of the conventional two-stage amplifier. The wide-bandwidth scalar circuit has very short delay so that the non-dominant pole and right-half-plane...
To support and popularize Science and Technology (ST) to the Macao students and to train their interest are important. Since there were less than 7% of the higher educational students majored in ST in 2013. Therefore, the author, who is a guide of a telecommunication gallery in Macao, also has the duty to increase students' interest in ST. For this purpose, some science workshops, courses and demonstrations...
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.