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This paper presents the design of a frequency synthesizer using phase locked loop (PLL) in a standard 130 nm CMOS technology with the supply voltage of 1.2 V. The low power and the low phase noise based current reuse VCO (CRVCO) and the frequency divider have been used to design the frequency synthesizer. The designed CRVCO gives a low power and a low phase noise performance. The designed PLL consumes...
Lightweight cryptography (LWC) provides cryptographic solutions for resource-constrained devices such as RFID tags, industrial controllers, sensor nodes, and smart cards. LWC based devices have stringent constraints on power consumption and are vulnerable to side-channel attacks such as Differential Power Analysis (DPA). The existing CMOS-based countermeasures for DPA are not suitable for circuits...
Harmonic and interharmonic distortions are considered as the main power quality issues especially in the distribution networks. The double-stage Adjustable Speed Drives (ASDs) in which the front-end diode rectifier is connected to a rear-end inverter through an intermediate DC-link filter may inject significant amount of harmonics and interharmonics into the grid and consequently degrade the grid...
DC-link capacitor is one of the reliability-critical components in motor drive applications, which contributes to a considerable cost, size and failure. Its reliability performance depends on both inherent physical strength and external loading. The grid unbalances could alter the electro-thermal stresses of key components in a motor drive. Therefore, this paper investigates the impact of grid voltage...
This paper presents a multiphysics modeling approach to design an electric powertrain assembly in order to predict its NVH performance and perform optimization to minimize noise while keeping weight under control. The powertrain assembly contains two components — synchronous motor and a geartrain. Numerical simulation approach involves three steps; 1. A two-dimensional (2D) finite element electromagnetic...
Research in Internet of Things (IoT's) have surpassed the notions of connectivity and smartness, and entered into an era of sociable objects. A model based on socially-influenced interactions for “social objects” is presented to demonstrate its application and strength. Adopting an agent-based modeling method and simulation, a comparative study of competitive vs. cooperative behavior of peers in shared...
Average absolute frequency deviation value (AFDVavg) based active islanding detection technique is recently introduced for islanding detection of active distribution system with a single active DG. This paper implements, evaluates and analyze the performance of AFDVavg technique for active distribution system with parallel inverter. The main focus is on islanding detection of an ADN with parallel...
Resent launches of optical space-borne remote sensing systems with high resolution, high temporal repetition rate, and constant viewing angles (e.g.: Venμs, Sentinel-2) will fortify the potential of remote sensing applications in the context of agricultural monitoring (e.g.: the derivation of biophysical parameters). The practicality of optical and/or thermal remote sensing data is often limited by...
This study has investigated the stride, swing, stance and double support intervals of gait for Parkinson's disease (PD) patients with different levels of severity. Self-similar properties of the gait signal were analyzed to investigate the changes in the gait pattern of the healthy and PD patients. To understand the self-similar property, detrended fluctuation analysis was performed. The analysis...
the role of Problem Based Learning (PBL) is relative clear in domains such as medicine but its efficacy in engineering is as yet less certain. To clarify the role of PBL in engineering, a 3 day workshop was conducted for senior Brazilian engineering academics where they were given the theory and then an immersive PBL experience. One major purpose for running this workshop was for them to identify...
Internet of Things (IoT) devices are mostly small and operate wirelessly on limited battery supply, and therefore have stringent constraints on power consumption and hardware resources. Lightweight cryptography (LWC) provides cryptographic solutions for resource-constrained IoT devices. LWC based IoT devices are vulnerable to side-channel attacks such as Differential Power Analysis (DPA). The existing...
With continuously growing data, clusters also need to grow periodically to accommodate the increased demand of data processing. This is usually done by addition of newer hardware, whose configuration might differ from the existing nodes. As a result, clusters are becoming heterogeneous in nature. For many real world machine learning and data mining applications, data is represented in the form of...
The Near Infrared Spectroscopy is widely used for qualitative and quantitative analysis of solidand liquid samples. The main food products that are contaminated are milk, honey, fruit juices and olive oil, chili powder, turmeric powder. Thus the identification of the finger print regions of the constituents such as protein, carbohydrates, water content, starch, glucose, sucrose and fructose in rice...
The objective of this paper is to introduce a new integrated methodology for iris detection and recognition using a two fold method to deduce better results as compared to the existing techniques. The methodology primarily employs the Finite Impulse Response(FIR) and Gabor wavelet transform as for computing fundamentals. The figurative classification in the proposed algorithm is on the basis of euclidean...
With continuous shrink in the size of integrated circuits, the complexity, and the number of processing steps continue to increase. CMP is one of the crucial steps to maintain good process yields. The number of FEOL CMP steps has increased drastically in leading-edge nodes and also made the process requirements more stringent. In order to meet these requirements, selection of the right consumables...
With continuous shrink in the size of integrated circuits, the complexity, and the number of processing steps continue to increase. CMP is one of the crucial steps to maintain good process yields. The number of FEOL CMP steps has increased drastically in leading-edge nodes and also made the process requirements more stringent. In order to meet these requirements, selection of the right consumables...
Although agriculture now accounts for only 14 percent of Gross Domestic Product (GDP), rapid growth of agriculture in India is critical for inclusiveness. Information Communication and Technology (ICT) provides greater role in offering greater expertise to producers regarding pricing, good quality seed information, fertilizers, disease detail, sharing new discoveries of scientists working at various...
Different control methods are preowned in dc-dc converters to control the dynamic and output characteristics of the response. In this paper some of the soft computing techniques are used to analyze the performance of buck converter using Mathematical laboratory.
Voltage unbalance is the most common disturbance in distribution networks, which gives undesirable effects on many grid connected power electronics systems including Adjustable Speed Drive (ASD). Severe voltage unbalance can force conventional three-phase diode rectifiers into almost single-phase operation, which degrades the grid power quality and also imposes a significant negative impact on the...
Power system restructuring includes several new aspects in power system, especially in the area of transmission line protection. Therefore, in this paper transmission line protection (TLP) using distance relay and modelling of distance relay with analog antialiasing filter for TLP is presented, on the basis of several points of operational aspects, throughout the last decade. Protection system of...
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