AUB ScholarWorks

Browsing Faculty of Engineering and Architecture (FEA) by Issue Date

Browsing Faculty of Engineering and Architecture (FEA) by Issue Date

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  • GSM RF equipment testing and performance analysis 
    Fares A.; Khachan A.; Kasbah A.B.; Zeidan M.; Kayssi A. (, 2004)
    In this paper we present four Radio Frequency (RF) measurements used to evaluate fundamental performance parameters of Global System for Mobile Communications (GSM) equipment. We describe the relevant theory for each ...
  • Groundwater resources in Lebanon: A vulnerability assessment 
    Metni M.; El-Fadel M.; Sadek S.; Kayal R.; El Khoury D.L. (BASINGSTOKERANKINE RD, BASINGSTOKE RG24 8PR, HANTS, ENGLAND, 2004)
    This paper presents a regional groundwater vulnerability assessment for Lebanon using the DRASTIC model coupled with a GIS-based framework to prioritize protection efforts, whereby the most vulnerable areas to groundwater ...
  • Assessment of energy efficiency options in the building sector of Lebanon 
    Chedid R.B.; Ghajar R.F. (OXFORDTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND, 2004)
    This paper examines the merits of implementing energy efficiency policies in the building sector in Lebanon following the approach normally adopted in Climate Change studies. The paper first examines the impact of the ...
  • Wheel load distribution in simply supported concrete slab bridges 
    Mabsout M.; Tarhini K.; Jabakhanji R.; Awwad E. (RESTON1801 ALEXANDER BELL DR, RESTON, VA 20191-4400 USA, 2004)
    This paper presents the results of a parametric study related to the wheel load distribution in one-span, simply supported, multilane, reinforced concrete slab bridges. The finite-element method was used to investigate the ...
  • Transient current testing of dynamic CMOS circuits 
    Aaraj N.; Nazer A.; Chehab A.; Kayssi A. (LOS ALAMITOS10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1264 USA, 2004)
    We propose methods for testing dynamic CMOS circuits using the transient power supply current, iDDT. The methods are based on setting the primary inputs of the circuit under test, switching the clock signal and monitoring ...
  • Optimal uncoded regeneration for binary antipodal signaling 
    Abou-Faycal I.; Medard M. (, 2004)
    We derive, for a binary antipodal input signal, the optimal uncoded regenerator function when the channels at the ingress and at the egress of the regenerator are degraded by AWGN. We show that the optimal function is a ...
  • TRUMMAR - A trust model for mobile agent systems based on reputation 
    Derbas G.; Kayssi A.; Artail H.; Chehab A. (, 2004)
    In this paper we present TRUMMAR, a reputation-based trust model that mobile agent systems can use to protect agents from malicious hosts. TRUMMAR is unique in being a truly comprehensive model since it accounts, in a ...
  • Reconfigurable computing for RC6 cryptography 
    Itani M.; Diab H. (, 2004)
    This paper presents an emerging reconfigurable hardware that potentially delivers flexible high performance for cryptographic algorithms. MorphoSys, a dynamic reconfigurable architecture that sustains implementations that ...
  • A new method for computing the directivity of 4 Chebyshev and modified Chebyshev arrays 
    El-Hajj A.; Kabalan K.Y.; Al-Husseini M. (, 2004)
    In this paper, a new method for exact calculation of the directivity of Chebyshev and modified Chebyshev arrays is presented. It makes use of Chebyshev polynomials and puts the integral in the denominator of the directivity ...
  • Natural language interface for mobile robot navigation control 
    Song I.; Guedea F.; Karray F.; Dai Y.; El Khalil I. (, 2004)
    Natural language command is very abstract. On the other hand, a mobile robot command should be very specific with actual numbers. Thus natural language processing and robot navigation has a big gap. In our research, we ...
  • Bessel planar arrays 
    Kabalan K.Y.; El-Hajj A.; Al-Husseini M. (WASHINGTON2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA, 2004)
    In this paper, we introduce a new class of planar arrays that we call the Bessel planar arrays. A formula for the current distribution in the elements of these arrays is presented, which is related to Bessel functions. For ...
  • The average capacitor current method for delay calculation in MOS circuits 
    Kayssi A.I. (PISCATAWAY445 HOES LANE, PISCATAWAY, NJ 08855 USA, 2004)
    The transient response of metal-oxide-semiconductor (MOS) gates is a topic covered in most textbooks on digital integrated circuits and very-large-scale-integration (VLSI) design. One method often used to calculate first-order ...
  • Fuzzy logic arbiters for multiple-bus multiprocessor systems 
    Diab H.B. (PISCATAWAY445 HOES LANE, PISCATAWAY, NJ 08855 USA, 2004)
    This paper describes and evaluates the use of fuzzy logic arbiters for multiple-bus shared memory multiprocessor system. Multiple-bus systems allow multiple and simultaneous bus transfer in addition to a high degree of ...
  • J2ME application-layer end-to-end security for m-commerce 
    Itani W.; Kayssi A. (LONDON24-28 OVAL RD, LONDON NW1 7DX, ENGLAND, 2004)
    This paper shows an end-to-end application-layer security solution for wireless enterprise applications using the Java 2 Platform Micro Edition (J2ME). The proposed solution uses pure Java components to provide end-to-end ...
  • Transient current testing of dynamic CMOS circuits in the presence of leakage and process variation 
    Chehab A.; Kayssi A.; Nazer A.; Aaraj N. (, 2004)
    We propose a method for testing dynamic CMOS circuits using the transient power supply current, iDDT. The method is based on setting the primary inputs of the circuit under test, switching the clock signal and monitoring ...
  • 'Hands-free interface'- A fast and accurate tracking procedure for real time human computer interaction 
    El-Afifi L.; Karaki M.; Korban J.; Al Alaoui M.A. (, 2004)
    In this paper, we propose 'Hands-free Interface', a technology that is intended to replace conventional computer screen pointing devices for the use of the disabled. We describe a real time, non-intrusive, fast and affordable ...
  • Unified decoder architectures for Repeat-Accumulate and LDPC codes 
    Mansour M.M. (, 2004)
    This paper investigates the design of high-performance decoder architectures for two promising codes - Repeat-Accumulate (RA) and LDPC codes - of large block length, in both regular and irregular forms. It addresses the ...
  • An improved method for iDDT testing in the presence of leakage and process variation 
    Chehab A.; Kayssi A.; Nazer A.; Makki R. (, 2004)
    We propose in this paper a testing method for CMOS circuits that is insensitive to process variations and leakage levels. This method is based on the transient supply current (iDDT) and on the observation that current ...
  • High-performance decoders for regular and irregular repeat-accumulate codes 
    Mansour M.M. (, 2004)
    This paper investigates high-performance decoder design for regular and irregular repeat-accumulate (RA) codes of large block length. In order to achieve throughputs and bit-error rate performance that are inline with ...
  • The characteristic mode theory of the filed penetration into a cylindrical waveguide through rectangular aperture, TM case 
    Kabalan K.Y.; El-Hajj A.; Elias F. (, 2004)
    The problem of aperture in conducting media has been widely considered in the literature. This problem addresses the case of an electromagnetic wave incident on a structure of conducting material segmenting space into two ...

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