Now showing items 80-99 of 281

    • Energy efficient routing protocols for wireless sensor networks: comparison and future directions 

      Murukesan, Loganathan; Thennarasan, Sabapathy; Nur Hafizah, Ghazali; R, Badlishah, Ahmad; Mohamed Nasrun, Osman (EDP Sciences, 2017)
      Wireless sensor network consists of nodes with limited resources. Hence, it is important to design protocols or algorithms which increases energy efficiency in order to improve the network lifetime. In this paper, techniques ...
    • Energy efficient segmentation-link strategies for transparent IP over WDM core networks 

      Mohd Nazri, Mohd Warip; Ivan, Andonovic; Ivan Glesk; Phaklen, Ehkan, Dr.; Fairul Afzal, Ahmad Fuad; Mohamed Elshaikh Elobaid, Said Ahmed (Engineering and Technology Publishing, 2014-01)
      Recent developments in Optical IP networks have heightened the need for reduction on power consumption via so called green photonics and concepts known as green networking. Adhering to these principles we proposed a novel ...
    • Energy monitoring based on human activity in the workplace 

      Nur Hanim, Mustafa; Mohd Nor, Husain, Dato' Prof. Dr.; Mohamad Zoinol Abidin, Abd. Aziz; Mohd Azlishah, Othman; Mohd Fareq, Abd. Malek, Dr. (Institute of Physics Publishing, 2014)
      Human behavior is the most important factor in order to manage energy usage. Nowadays, smart house technology offers a better quality of life by introducing automated appliance control and assistive services. However, human ...
    • The engineering and construction of a pre-bunched free electron maser 

      Mohd Fareq, Abd Malek; Lucas, J.; Huang, Y. (EMW Publishing, 2009)
      We are developing prototype free electron maser (FEM) that is compact, tuneable and efficient for potential industrial use. Therefore we define the characteristics for the construction of a novel X-band rectangular waveguide ...
    • Enhance the performance of free space optical (FSO) communication due to atmospheric turbulence via the dual diffuser modulation (DDM) 

      Abdul Rahman, Kram; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Anuar, Mat Safar, Ir. Dr.; Hilal Adnan, Fadhil, Dr. (Trans Tech Publications, 2013-12)
      This paper focus on mitigating the atmospheric turbulence effect in free space optical communication using dual diffuser modulation (DDM) technique. Phase screen diffuser located on transmitter create 'new' beam wave to ...
    • Enhanced performance of SAC-OCDMA system based on SPD detection utilizing EDFA for access networks 

      Sarah G., Abdulqader; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Hamza Mohammed Ridha, Al-Khafaji; Hilal Adnan, Fadhil, Dr. (Engineering and Technology Publishing, 2014-02)
      In this paper, we present the impact of an EDFA (Erbium Doped Fibre Amplifier) for high data rate in Spectral Amplitude Coding Optical Code Division Multiple Access (SAC-OCDMA) networks. A Single photodiode (SPD) detection ...
    • Enhancement of algorithm and investigation of heat transfer through fins 

      Moslemuddin, Fakir, Dr.; Sabira, Khatun, Prof. Dr.; Shahnor, Basri, Prof. Ir. Dr. (Praise Worthy Prize S.r.l., 2013-09)
      Finite Element Method (FEM) and Differential Quadrature Method (DQM) are two very important numerical solution techniques to solve engineering and physical science problems. Usually elements are sub-divided uniformly in ...
    • Enhancement of performance of a hybrid SAC–OCDMA system using dynamic cyclic shift code 

      Thanaa Hussein, Abd; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Hilal Adnan, Fadhil, Dr.; R. Badlisyah, Ahmad, Prof. Madya Dr.; Juwita, Mohd Nordin (Institute of Physical Optics, 2012)
      A hybrid subcarrier multiplexing (SCM) technique incorporating spectral amplitude coding and optical code division multiple access (SAC-OCDMA) technologies is investigated using both numerical and simulation methods. The ...
    • Equation-based construction technique for the OSCDMA zero cross correlation code for the basic matrix 

      Babekir, E.I.; Saad, N.M.; Elfadel, N.; Mohammed, A.; Aziz, A.A.; Anuar, Mat Safar; Syed Alwee Aljunid, Syed Junid; Mohamad Khazani, Abdullah (Institute of Electrical and Electronics Engineering (IEEE), 2007-05)
      In this paper the Double Weight code (DW) family which is used as a proposed code in optical spectral code division multiple access system (OSCDMA) has been studied using the Modified Double Weight code (MDW) which has ...
    • Evaluation of transformer magnetizing core loss 

      Ahmed, M.A.H.; Soib, Taib; Ismail, Daut; Uthman, S. (Asian Network for Scientific Information, 2006)
      Loss in transformer core is the electrical power lost in terms of heat within the core of transformer, when core is subjected to AC magnetizing force. It is composed of several types of losses such as Hysterics loss, eddy ...
    • Experimental determination of the performance of rice husk-carbon nanotube composites for absorbing microwave signals in the frequency range of 12.4-18 GHz 

      Lee, Yeng Seng; Mohd Fareq, Abd. Malek, Dr.; Cheng, Ee Meng, Dr.; Liu, Wei Wen, Dr.; Kok, Yeow You; Muhammad Nadeem, Iqbal; Wee, Fwen Hoon, Dr.; Khor, Shing Fhan, Dr.; Liyana, Zahid; Mohd Fariz, Haji Abd Malek (EMW Publishing, 2013)
      Composites of rice husks and carbon nanotubes (RHC-NTs) are an innovation in improving the absorption of microwave signals. Rice husks, which are an agricultural waste material, have been found to possess a significant ...
    • The experimental results of a low power X- band free electron maser by electron prebunching 

      Fareq, Malek; Lucas, James; Huang, Yi (EMW Publishing, 2010)
      We have developed a proof-of-concept low power free electron maser that is compact and low cost. The design, set-up and results of a novel (without wiggler) low power X-band rectangular waveguide pre-bunched free electron ...
    • Exploiting chrominance planes similarity on listless quadtree coders 

      Ruzelita, Ngadiran, Dr.; Boussakta, Said; Bouridane, Ahmed; Khelifi, Fouad (The Institution of Engineering and Technology, 2013)
      This study proposes an efficient algorithm for colour image compression with listless implementation based on set partition block embedded coding (SPECK). The objective of this work is to develop an algorithm that exploits ...
    • A fabrication of intelligent spiral reconfigurable beam forming antenna for 2.35 2.39GHz applications and path loss measurements 

      Muzammil, Jusoh, Dr.; Mohd Faizal, Jamlos, Dr.; Muhammad Ramlee, Kamarudin, Assoc. Prof. Dr.; Sabapathy, Thennarasan; Mohd Ilman, Jais; Mohd A., Jamlos (EMW Publishing, 2013)
      A reconfigurable beam forming antenna prototype using a spiral feed line is proposed in this paper. The presented antenna is integrated with PIN diode switches at a specific location of spiral feed line. It is discovered ...
    • Face recognition using eigenfaces and neural networks 

      Mohamed Rizon; Muhammad Firdaus, Hashim; Puteh, Saad; Sazali, Yaacob, Prof. Dr.; Mohd Rozailan, Mamat; Ali Yeon, Md Shakaff, Prof. Dr.; Abdul Rahman, Saad; Hazri, Desa, Dr.; Karthigayan, M. (Science Publications, 2006)
      In this study, we develop a computational model to identify the face of an unknown person’s by applying eigenfaces. The eigenfaces has been applied to extract the basic face of the human face images. The eigenfaces is ...
    • A flexible and reliable architecture for mobile agent security 

      Ghossoon, Mohammed Waleed Al-Saadoon (Science Publications, 2009)
      Problem statement: Wireless application protocol is a protocol that makes it possible to surf the Internet from a cellular phone or other handheld wireless. Many of us that surf the Internet from home with a 56 kbps modem ...
    • FPGA based control IC for multilevel inverter 

      Muhammad Imran, Ahmad; Zulkifli, Husin; R. Badlishah, Ahmad; Hasliza, A. Rahim; Mohamad Suhaizal, Abu Hassan; Mohd Nazrin, Md Isa (Institute of Eelectrical and Electronics Engineering (IEEE), 2008-05-13)
      Multilevel inverter is used in applications that need high voltage and high current. The topologies of multilevel inverter have several advantages such as lower THD, lower EMI generation, better output waveform and higher ...
    • FPGA implementation for GMM-based speaker identification 

      EhKan, Phaklen; Allen, Timothy; Quigley, Steven F. (Hindawi Publishing Corporation, 2011)
      In today's society, highly accurate personal identification systems are required. Passwords or pin numbers can be forgotten or forged and are no longer considered to offer a high level of security. The use of biological ...
    • Frequency and pattern reconfigurable dipole-Yagi antenna 

      Ezla Najwa, Ahyat; Muhammad Ramlee, Kamarudin, Assoc. Prof. Dr.; Tharek, Abd. Rahman, Prof. Dr.; Mohd Faizal, Jamlos, Dr.; Mohamad Rijal, Hamid, Dr.; Mohd. Haizal, Jamaluddin, Dr.; Nur Hidayah, Ramli (Wiley Periodicals, Inc., 2013-02)
      A novel dipole-Yagi antenna is presented with pattern and frequency reconfigurable capability. The novel structure is based from Yagi-Uda antenna, consist of dipole as a main radiator and four parasitic metal strips. The ...
    • Gait disorder rehabilitation using vision and non-vision based sensors: A systematic review 

      Asraf, Ali; Sundaraj, Kenneth, Prof. Madya Dr.; R. Badlishah, Ahmad, Prof. Dr.; Nizam, Ahamed; Anamul, Islam (Association of Basic Medical Sciences of Federation of Bosnia and Herzegovina, 2012-08)
      Even though the amount of rehabilitation guidelines has never been greater, uncertainty continues to arise regarding the efficiency and effectiveness of the rehabilitation of gait disorders. This question has been hindered ...