Browsing by Author "Benammar, M."
Now showing items 21-36 of 36
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Metal nanowire-graphene composite transparent electrodes
Mankowski T.S.; Zhu Z.; Balakrishnan K.; Shikoh A.S.; Touati F.; Benammar M.; Mansuripur M.; Falco C.M.... more authors ... less authors ( SPIE , 2014 , Conference Paper)Silver nanowires with 40 nm diameter and copper nanowires with 150 nm diameter were synthesized using low-temperature routes, and deposited in combination with ultrathin graphene sheets for use as transparent conductors. ... -
Multiple sensor fault diagnosis by evolving data-driven approach
El-Koujok, M.; Benammar, M.; Meskin, N.; Al-Naemi, M.; Langari, R. ( Elsevier Inc. , 2014 , Article)Sensors are indispensable components of modern plants and processes and their reliability is vital to ensure reliable and safe operation of complex systems. In this paper, the problem of design and development of a data-driven ... -
Multiple sensor fault diagnosis for non-linear and dynamic system by evolving approach
El-Koujok, M.; Benammar, M.; Meskin, Nader; Al-Naemi, M.; Langari, R. ( 2012 3rd Annual IEEE Prognostics and System Health Management Conference, PHM-2012 , 2012 , Conference Paper)Reliability of sensor measurement is vital to assure the performance of complex and nonlinear industrial operation. In this paper, the problem of designing and development of a data-driven multiple sensor fault detection ... -
New fast arctangent approximation algorithm for generic real-time embedded applications
Benammar M.; Alassi A.; Gastli A.; Ben-Brahim L.; Touati F. ( MDPI AG , 2019 , Article)Fast and accurate arctangent approximations are used in several contemporary applications, including embedded systems, signal processing, radar, and power systems. Three main approximation techniques are well-established ... -
A New Low Cost Linear Resolver Converter
Ben-Brahim, L.; Benammar, M.; Alhamadi, M.A.; Al-Emadi, N.; Al-Hitmi, M.A. ( IEEE , 2008 , Article)A new low cost converter topology is proposed for sinusoidal position encoders. The converter enables determination of the angle from the sine and cosine signals of the encoder. When used with resolvers, the implementation ... -
An open-loop technique for angle determination from position encoders
Benammar, M.; Ben-Brahim, L.; Alhamadi, M.A.; Al-Emadi, N.; Al-Hitmi, M. ( IEEE , 2008 , Conference Paper)The paper presents a novel technique for the determination of the angle from low-frequency quadrature cosinusoidal signals produced, for example, by position sensors. In the presented scheme applied to a resolver, the ... -
Performance-based prognosis scheme for industrial gas turbines
Tsoutsanis, E.; Meskin, Nader; Benammar, M.; Khorasani, K. ( Institute of Electrical and Electronics Engineers Inc. , 2015 , Conference Paper)In this paper, we present a novel method for performance-based prognostics of industrial gas turbines. The concept of performance adaptation is implemented through a dynamic engine model that is developed in Matlab/Simulink ... -
Precise method for linearizing sine and cosine signals in resolvers and quadrature encoders applications
Alhamadi, Mohd A.; Benammar, M.; Ben-brahim, L. ( IEEE , 2004 , Conference Paper)Resolvers and quadrature encoders provide electrical signal related to the sine and cosine of the mechanical shaft angle over the full 360 degree range. A converter is described for the linearization of these signals, ... -
Precise, wide-range approximations to arc sine function suitable for analog implementation in sensors and instrumentation applications
Benammar, M. ( 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 ... -
PV power prediction in Qatar based on machine learning approach
Benhmed K.; Touati F.; Al-Hitmi M.; Chowdhury N.A.; Gonzales A.S.P.; Jr.; Qiblawey Y.; Benammar M.... more authors ... less authors ( Institute of Electrical and Electronics Engineers Inc. , 2018 , Conference Paper)PV output power is highly sensitive to many environmental parameters, hence, power available from plants based on this technology will be affected, especially in harsh environments such that of Gulf countries. In order to ... -
A Resolver Angle Estimator Based on Its Excitation Signal
Ben-Brahim, L.; Benammar, M.; Alhamadi, M.A. ( IEEE , 2009 , Article)A resolver generates a pair of signals proportional to the sine and cosine of the angular position of its shaft. A new low-cost method for converting the amplitudes of these sine/cosine transducer signals into a measure ... -
A resolver converter based upon a novel open-Loop Technique
Benammar, M.; Ben-Brahim, L.; Alhamadi, M.A.; Al-Emadi, N.; Al-Hitmi, M. ( IEEE , 2008 , Conference Paper)The paper presents a novel technique for the determination of the angle from slowly-varying quadrature co-sinusoidal signals produced, for example, by position sensors. In the presented scheme applied to a resolver, the ... -
Smart-home automation using IoT-based sensing and monitoring platform
Al-Kuwari M.; Ramadan A.; Ismael Y.; Al-Sughair L.; Gastli A.; Benammar M.... more authors ... less authors ( Institute of Electrical and Electronics Engineers Inc. , 2018 , Conference Paper)In order to help maintain comfortable living conditions within a home, home monitoring and automation are utilized. The standards of human's comfort in homes can be categorized into several types. Among these categories, ... -
Theory and simulation of a miniature zirconia sensor for control of the air-to-fuel ratio in combustion systems
Benammar, M.; Maskell, W.C. ( 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 ... -
Transient gas turbine performance diagnostics through nonlinear adaptation of compressor and turbine maps
Tsoutsanis, E.; Meskin, Nader; Benammar, M.; Khorasani, K. ( American Society of Mechanical Engineers (ASME) , 2015 , Article)Gas turbines are faced with new challenges of increasing flexibility in their operation while reducing their life cycle costs, leading to new research priorities and challenges. One of these challenges involves the ... -
Utilizing international design competitions for enhancing 21st century engineering skills: The experience of shell Eco-Marathon
Abdulwahed M.; Benammar M.; Hasna , Mazen; Ghani S. ( Institute of Electrical and Electronics Engineers Inc. , 2015 , Conference Paper)Nurturing design skills in students is in the heart of all engineering curricula. While academic courses and capstone activities inject the design process in students, involvement in practical design activities is believed ...