Electrical Engineering: المرسلات الحديثة
السجلات المعروضة 621 -- 640 من 2811
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"Quad-band flexible magnesium zinc ferrite (MgZnFe2O4)-based double negative metamaterial for microwave applications"
( Elsevier , 2021 , Article)This article presents vertically coupled, rectangular complementary split-ring resonator-shaped quad-band double-negative (DNG) metamaterial unit cells, that is, having both negative permittivity and permeability, which ... -
Numerical and Experimental Investigation of Infrared Optical Filter Based on Metal Oxide Thin Films for Temperature Mitigation in Photovoltaics
( Springer , 2022 , Article)Various metal oxide thin films, including TiO2, SnO2, MoO3, and NiO, grown by the electron-beam evaporation process, have been optimized for implementation as multilayered structures for infrared (IR) filter-based photonic ... -
Effects of titanium and carbon nanotubes on nano/micromechanical properties of HA/TNT/CNT nanocomposites
( Elsevier , 2021 , Article)In this study, hydroxyapatite/titanium nanotube/carbon nanotube (HA/TNT/CNT) nanocomposites with different CNT contents were fabricated using a combination of hydrothermal and sol–gel methods. The nanocomposite powders ... -
RELIABLE COVID-19 DETECTION USING CHEST X-RAY IMAGES
( IEEE Computer Society , 2021 , Conference)Coronavirus disease 2019 (COVID-19) has emerged the need for computer-aided diagnosis with automatic, accurate, and fast algorithms. Recent studies have applied Machine Learning algorithms for COVID-19 diagnosis over chest ... -
A systematic approach to the design and characterization of a smart insole for detecting vertical ground reaction force (vGRF) in gait analysis
( MDPI AG , 2020 , Article)Gait analysis is a systematic study of human locomotion, which can be utilized in various applications, such as rehabilitation, clinical diagnostics and sports activities. The various limitations such as cost, non-portability, ... -
Continuous-Time ΣΔ ADC with Implicit Variable Gain Amplifier for CMOS Image Sensor
( Hindawi Publishing Corporation , 2014 , Article)This paper presents a column-parallel continuous-time sigma delta (CTSD) ADC for mega-pixel resolution CMOS image sensor (CIS). The sigma delta modulator is implemented with a 2nd order resistor/capacitor-based loop filter. ... -
Review and simulation of leakage current in transformerless microinverters for PV applications
( Elsevier , 2017 , Article Review)Designing microinverters without transformers enhances system efficiency and power density and reduces cost. However, the transformer removal results in loss of galvanic isolation that leads to leakage current circulation. ... -
A new tracking technique for mechanical angle measurement
( Elsevier , 2014 , Article)Resolvers and other types of sine/cosine encoders are used for measurement of mechanical angles. These devices produce quadrature signals in the form of sine and cosine of the unknown angle, and require converters to extract ... -
Angular position measurement using resolvers together with a robust linearization technique
( Institute of Electrical and Electronics Engineers Inc. , 2015 , Conference)Resolvers are used for both absolute angular and linear position sensing. A robust amplitude to phase converter is described for the determination of position from the sine and cosine output signals of the resolver. The ... -
A low power temperature sensor based on a voltage to time converter cell
( IEEE , 2013 , Conference)In this paper we propose a temperature sensor, based on a voltage to time converter cell (VTC). A VTC is frequently employed in time to digital converters for generating a delay that is proportional to the input voltage. ... -
A novel resolver converter based on a modified tracking method
( IEEE , 2013 , Conference)Resolvers are robust and reliable transducers, working as rotary transformers, and are used for mechanical angle measurement. In the present work, the two stator windings of the resolver are excited with sine and cosine ... -
A new fast tracking resolver for mechanical angle measurement
( Institute of Electrical and Electronics Engineers Inc. , 2013 , Conference)The resolver is a mechanical angle and rotational speed transducer that operates as rotary transformer; its two stator windings are excited with sine and cosine AC signals and its rotor winding produces a sinusoidal signal ... -
A novel amplitude-to-phase converter for sine/cosine position transducers
( Taylor and Francis Group , 2007 , Article)Resolvers and various other types of sine/cosine encoders are used for both angular and linear position sensing. These devices provide analogue signals in the form of the sine and the cosine of an angle related to the ... -
Novel linearizer for tangent/cotangent converter
( IEEE , 2009 , Conference)Resolvers and other types of sinusoidal encoders provide electrical signals whose amplitudes are related to the sine and cosine of the mechanical shaft angle ¿ over the full 360° range. The tangent/cotangent converter, ... -
Precise, wide-range approximations to arc sine function suitable for analog implementation in sensors and instrumentation applications
( IEEE , 2005 , Article)This paper presents four newly developed algebraic approximations of the inverse sine function, defined for the full [-1,+1] input range. These approximations contain few terms, and have numerical coefficients with low ... -
Design and Assembly of Miniature Zirconia Oxygen Sensors
( IEEE , 2004 , Article)Zirconia oxygen sensors are highly selective solid-state devices used for many applications, including combustion control for better fuel economy and lower emissions. Stabilized zirconia electrolyte meets the device ... -
A low power oscillator based temperature sensor for RFID applications
( IEEE Computer Society , 2013 , Conference)In this paper we present a temperature sensor based on a ring oscillator. The ring oscillator uses the CMOS thyristor delay element and has an extremely low power consumption of about 47nW at room temperature with a supply ... -
A new closed-loop converter for sinusoidal encoders - Preliminary results
( IEEE , 2009 , Conference)Sinusoidal position transducers provide accurate and reliable representation of the mechanical position of their shafts. The sine/cosine transducers signals may be used in open loop or closed loop arrangements for the ... -
Theory and simulation of a miniature zirconia sensor for control of the air-to-fuel ratio in combustion systems
( IEEE , 2001 , Article)The theory of operation on both sides of stoichiometry of a miniature zirconia oxygen pump-gauge incorporating a diffusion hole is discussed. Computer simulation of the sensor output when used for monitoring the air-to-fuel ... -
Lascada: A novel scalable topology for data center network
( IEEE , 2020 , Article)The growth of cloud-based services is mainly supported by the core networking infrastructures of large-scale data centers, while the scalability of these services is influenced by the performance and dependability ...
