University of Limerick Institutional Repository

Browsing Electronic & Computer Engineering by Author "Jafer, Essa"

DSpace Repository

Browsing Electronic & Computer Engineering by Author "Jafer, Essa"

Sort by: Order: Results:

  • Arshak, Khalil; Jafer, Essa (IEEE Computer Society, 2006)
    The main goal of this work is to fabricate a miniaturized, low power, bi-directional wireless communication system that can be used for in vivo pressure monitoring. The system prototype consists of miniature FSK transceiver ...
  • Arshak, Khalil; Jafer, Essa; McGloughlin, Timothy M.; Corbett, Timothy J.; Chatzandroulis, Stavros; Goustouridis, Dimitrios; Tsoukalas, D.; Normand, P.; Korostynska, Olga (IEEE Computer Society, 2007)
    A prototype of miniaturized, low power, bi-directional wireless communication system was designed for in vivo pressure monitoring. The capacitive pressure sensors have been developed particularly for the medical field, ...
  • Arshak, Khalil; Jafer, Essa; Ibala, Christian Serge (IEEE Computer Society, 2007)
    The aim of this study is to design and develop a wireless sensor system integrating 24 bits analog to digital converter (ADC) and long range RF transceiver unit. The system is reading from two types of sensors, pressure ...
  • Arshak, Khalil; Korostynska, Olga; Jafer, Essa; Arshak, Arousian; Morris, Deirdre; Gill, Edric I. (IEEE Computer Society, 2006)
    A novel cost-effective real-time gamma radiation monitoring system based on metal oxide thick films was designed and tested. The changes in capacitances of ZnO and SnO2 thick film capacitors with interdigitated ...
  • Arshak, Khalil; Jafer, Essa; Ibala, Christian Serge (IEEE Computer Society, 2006)
    The study in this paper is focused on the improvement of a Field Programmable Gate Arrays (FPGA) based design using a hierarchical analysis tool offered by XILINX PlanAhead'TM. During this work, PlanAhead software is ...
  • Arshak, Khalil; Jafer, Essa; Arshak, Arousian; Waldron, David (IEEE Computer Society, 2006)
    In this paper, a miniaturized, low power, bidirectional wireless communication system has been developed to be used for in vivo pressure monitoring. The system prototype consists of miniature FSK transceiver integrated ...
  • Arshak, Khalil; Jafer, Essa; McDonagh, Declan (IEEE Computer Society, 2004)
    This paper presents a novel simulated model for a wireless data acquisition system. The system will read analogue information provided by two sensors and can be used for medical purposes. Real data has been obtained and a ...
  • Arshak, Khalil; Jafer, Essa; McDonagh, Declan (IEEE Computer Society, 2005)
    The aim of this study is to model and design an efficient wireless system that should be easy to integrate with other technologies or infrastructures at a low cost. The system is reading analog information recorded by a ...
  • Mahdi, Abdulhussain E; Jafer, Essa (World Scientific and Engineering Academy and Society (WSEAS), 2004)
    A new adaptive speech enhancement system, which utilizes a second-generation wavelet transform (SGWT) decomposition and a novel adaptive subband thresholding technique, is presented. The adaptive thresholding technique ...
  • Arshak, Khalil; Jafer, Essa; Ibala, Christian Serge (IEEE Computer Society, 2007)
    Field programmable gate arrays (FPGAs) play many important roles, ranging from small glue logic replacement to System-on-Chip designs. Nevertheless, FPGA vendors can not accurately specify the energy consumption information ...
  • Jafer, Essa; Mahdi, Abdulhussain E (World Scientific and Engineering Academy and Society (WSEAS), 2004)
    The implementation of three noise estimation algorithms using two different signal decomposition methods: a second-generation wavelet transform and a perceptual wavelet packet transform are described in this paper. The ...
  • Arshak, Khalil; Adepoju, Francis; Jafer, Essa (IEEE Computer Society, 2007)
    This paper presents an aggregation of simulated models for a wireless data acquisition system. The model consists of key units that were simulated using SIMULINK. The output signal from the transmitter was encoded to digital ...
  • Arshak, Khalil; Jafer, Essa; Ibala, Christian Serge (IEEE Computer Society, 2006)
    This paper presents the use of Xilinx ChipScope Pro integrated logic analyzer for Field programmable gate arrays (FPGA) as a board- and system-level diagnostic tool. FPGA designs have become increasingly dense and complex. ...
  • Jafer, Essa; Mahdi, Abdulhussain E (Bentham Open, 2008)
    This paper proposes a new wavelet-based algorithm for voice/unvoiced classification of speech segments. The classification process is based on: 1) statistical analysis of the energy-frequency distribution of the speech ...
  • Arshak, Khalil; Jafer, Essa; McGloughlin, Timothy M.; Corbett, Timothy J.; Chatzandroulis, Stavros; Goustouridis, Dimitrios (IEEE Computer Society, 2007)
    A prototype of miniaturized, low power, bidirectional wireless communication system was designed for in vivo pressure monitoring. The capacitive pressure sensors have been developed particularly for the medical field, where ...
  • Arshak, Khalil; Arshak, Arousian; Morris, Deirdre; Korostynska, Olga; Jafer, Essa (IEEE Computer Society, 2005)
    The ability to monitor pressure remotely is of particular importance in medical and environmental applications as it is less labour intensive, safer and offers peace of mind to the general public. To meet this demand, a ...
  • Arshak, Khalil; Jafer, Essa (IEEE Computer Society, 2007)
    In this work, a design of wireless system for multisensors monitoring has been presented. The main purpose of this research is to develop an efficient telemetry system for measuring water pressure and temperature signals. ...
  • Arshak, Khalil; Jafer, Essa (IEEE Computer Society, 2006)
    The development of a wireless sensor microsystems containing all the components of data acquisition system, such as sensors, signal-conditioning circuits, analog-digital converter, embedded microcontroller (MCU), and RF ...

Search ULIR


Browse

My Account

Statistics