Browsing Mohd Hafiz Fazalul Rahiman, Associate Professor Ir.Dr. by Title

Now showing items 48-67 of 69

    • Segmented capacitance tomography electrodes: A design and experimental verifications 

      Elmy Johana, Mohamad, Dr.; Ruzairi, Abdul Rahim, Prof. Dr.; Leow, Pei Ling, Dr.; Mohd Hafiz Fazalul, Rahiman, Dr.; Omar Mohd Faizan, Marwah; Nor Muzakkir, Nor Ayob (Institute of Electrical and Electronics Engineers (IEEE), 2012-05)
      A segmented capacitance tomography system for real-time imaging of multiphase flows is developed and presented in this work. The earlier research shows that the electrical tomography (ECT) system is applicable in flow ...

    • Sensor modeling for portable Electrical Capacitance Tomography system using simulation by COMSOL Multiphysics 

      Elmy Johana, Mohamad, Dr.; Muhammad Afiq Zimam, Mohamed; Ruzairi, Abdul Rahim, Prof. Dr.; Leow, Pei Ling, Dr.; Mohd Hafiz Fazalul, Rahiman, Dr.; Khairul Hamimah, Abas; Salinda, Bunyamin (Innovative Computing, Information and Control (ICIC) International, 2012-10)
      This work presents the development process for modeling a 16-segmented portable ECT (Electrical Capacitance Tomography) sensor (using FEM software package COMSOL Multiphysics). The physical sensors are 3D dimensional but ...

    • Simulation of the two-phase liquid – gas flow through ultrasonic transceivers application in ultrasonic tomography 

      Zulkarnay, Zakaria; Mohd Hafiz, Fazalul Rahiman; Ruzairi, Abdul Rahim (International Frequency Sensor Association (IFSA), 2010-01-29)
      In this paper, ultrasonic transmission mode tomography was used to visualize the two phase liquid/gas flow in a pipe/vessel. The sensing element consists of 8, 16 and 32 units ultrasonic transceivers were used to cover ...

    • Simulation on using cross-correlation technique for two-phase liquid/gas flow measurement for Ultrasonic Transmission Tomography 

      Nor Muzakkir, Nor Ayob; Sazali, Yaacob, Prof. Dr.; Zulkarnay, Zakaria; Mohd Hafiz, Fazalul Rahiman; Ruzairi, Abd Rahim (Institute of Electrical and Electronics Engineers (IEEE), 2010-05-21)
      Combining Ultrasonic Transmission Tomography (UTT) with the cross-correlation flow measurement technique can provide more information on the flow than usual. A simulated dual-plane UTT system for use on laboratory and ...

    • Simulative study of two-phase homogenous and isotropic media imaging using magnetic induction tomography 

      Zulkarnay, Zakaria; Ibrahim, Balkhis; Lee, Pick Yern; Nor Muzakkir, Nor Ayob; Mohd Hafiz, Fazalul Rahiman, Dr.; Mohd Zikrillah, Zawahirah; Ruzairi, Abdul Rahim, Prof. Dr. (Penerbit UTM Press, 2014)
      Magnetic induction tomography is a new non-invasive technology, based on eddy current discovery of electromagnetic induction by Michael Faraday. Through this technique, the passive electrical properties distribution of an ...

    • Small gas component detection using ultrasonic transmission-mode tomography system 

      Nor Muzakkir, Nor Ayob; Muhammad Jaysuman, Pusppanathan; Ruzairi, Abdul Rahim, Prof. Dr.; Mohd Hafiz, Fazalul Rahiman, Dr.; Fazlul Rahman, Mohd Yunus; Zulkarnay, Zakaria; Goh, Chiew Loon; Salinda, Buyamin, Dr.; Nasarudin, Ahmad; Yusri, Md. Yunos, Dr.; Norhaliza, Abdul Wahab, Assoc. Prof. Dr. (Penerbit UTM Press, 2014)
      This paper presents the development of an ultrasonic transmission-mode tomography system for the detection of small gas components by using higher frequency ultrasonic transducers. The selection of the transducer is important ...

    • Smart column imager 

      Mohd Hafiz, Fazalul Rahiman, Dr.; Mohd Ruzairi, Abdul Rahim, Prof. Dr.; Zulkarnay, Zakaria; Masturah Tunnur, Mohammad Talib (Universiti Malaysia Perlis (UniMAP)School of Mechatronic Engineering, 2014-05)
      This invention presents a smart column imager system that performs 3D imaging of liquid/gas mixtures in a process column and estimates of the mixtures profiles.

    • Statistical time energy based damage detection in steel plates using artificial neural networks 

      Paulraj, Murugesa Pandiyan, Prof. Madya; Mohd Shukri, Abdul Majid; Sazali, Yaacob, Prof. Dr.; Mohd Hafiz, Fazalul Rahiman; Krishnan, R. P. (Institute of Electrical and Elctronics Engineering (IEEE), 2009-03-06)
      In this paper, a simple method for crack identification in steel plates based on statistical time energy is presented. A simple experimental procedure is also proposed to measure the vibration at different positions of a ...

    • Study and Design of an Ultrasonic Flow Tomographic Front-End Multi Level Measurement System 

      Goh, Chiew Loon; Ruzairi, Abdul Rahim, Prof. Dr. ; Suzanna, Ridhuan Aw; Fazlul Rahman, Mohd Yunus; Nor Muzakkir, Nor Ayob; Mohd Hafiz, Fazalul Rahiman, Dr.; Anita, Ahmad, Dr.; Nasarudin, Ahmad; Khairul Hamimah, Abas (Penerbit UTM Press, 2014)
      With the rapid evolution of electro-acoustical technology, ultrasonic tomography has made considerable progress in industry. An ultrasonic tomography system provides non-invasive and non-intrusive flow visualisation that ...

    • A study of a two phases medium in pipe vessel using gaussian filter method and k-NN classifier 

      Mohd Rizal, Manan; Muhammad Naufal, Mansor; Ruzairi, Abdul Rahim; Sazali, Yaacob, Prof. Dr.; Mohd Hafiz, Fazalul Rahiman, Dr. (IOS Press, 2013-07-03)
      In this paper we present the existence and uniqueness of solutions to the stochastic problem to determine two phase level of gas and water in the industrial pipe line. In order to distinguish the level phases in a vessel ...

    • A study of Biomagnetic Stimulation for Transcranial application 

      Nor Shahira, Ab Ghafar; Zulkarnay, Zakaria; Anas, Mohd Noor; Chong Yen, Fook; Ahmad Nasrul, Norali; Asyraf Hakimi, Abu Bakar; Muhammad Khairul Ali, Hassan; Mohd. Hafiz Fazalul, Rahiman; Jaysuman, Puspanathan; Elmy Johana, Mohamad; Siti Zarina, Mohd Muji (IOP Publishing, 2019)
      Biomagnetic stimulation is a treatment uses the application of magnetic field principle for a therapeutic purpose. This non-invasive therapeutic technique use low frequency electromagnetic field which is less than 10 MHz. ...

    • Study of the effect of brightness after penetration of light from a lens 

      Mohd Fahajumi, Jumaah; Mohd Zikrillah, Zawahir; Fazlul Rahman, Mohd Yunus; Ruzairi, Abdul Rahim, Prof. Dr.; Nor Muzakkir, Nor Ayob; Muhammad Saiful Badri, Mansor; Naizatul Shima, Mohd Fadzil; Zulkarnay, Zakaria; Mohd Hafiz, Fazalul Rahiman, Dr. (Penerbit UTM Press, 2013)
      There are many types of component that are able to produce light and the light is produced based on the angle and wavelength of the lens. Light penetration depends on the type of material used. The tests are done using ...

    • A study on forward and inverse problems for an ultrasonic tomography 

      Mohd Hafiz, Fazalul Rahiman, Dr.; Ruzairi, Abdul Rahim, Prof. Dr.; Herlina, Abdul Rahim, Dr.; Zulkarnay, Zakaria; Muhammad Jaysuman, Pusppanathan (Penerbit UTM Press, 2014)
      This paper studies the solution for inverse and forward problems for an ultrasonic tomography. Transmission-mode approach has been used for sensing the liquid/gas two-phase flow, which is a kind of strongly inhomogeneous ...

    • Study on wireless sensor based industrial tomography systems 

      Chiew, Loon Goh; Nor Muzakkir, Nor Ayob; Ruzairi, Abdul Rahim, Prof. Dr.; Herlina, Abdul Rahim, Dr.; Muhammad Jaysuman, Pusppanathan; Mohd Hafiz, Fazalul Rahiman, Dr.; Loew,  Pei Ling, Dr.; Zulkarnay, Zakaria (International Frequency Sensor Association Publishing (IFSA), 2013)
      Wireless sensor technologies are promising in the field of industrial tomography system, to visualize the cross-sectional images of an industrial flow process. The aim of the paper is to review the technical and scientific ...

    • Supasorb Adsorbents for Treatment of Dyespolluted Wastewater 

      Saiful Azhar, Saad; Khairul Nizar, Ismail, Dr.; Mohamed Zulkali, Mohamed Daud, Assoc. Prof. Dr.; Farizul Hafiz, Kasim; Suhardy, Daud; Mohd Nazri, Salleh; Salsuwanda, Selamat; Che Zulzikrami Azner, Abidin (Malaysian Invention and Design Society (MINDS), 2007)
      Supasorb is a carbon-based adsorbent designed to treat dyes polluted waterwaste discharge from industry.

    • Tomographic reconstruction of a multi-attenuation phantom by means of ultrasonic method 

      Mohd Hafiz, Fazalul Rahiman, Dr; Ruzairi, Abdul Rahim, Prof. Dr.; Herlina, Abdul Rahim, Dr. (Springer Science+Business Media B.V., 2012)
      This paper presents a work on tomography reconstruction of a multi-attenuation phantom by means of ultrasonic method. A transmission-mode approach has been used for the sensing modality. The reconstruction has been conducted ...

    • Ultrasonic process tomographic imaging sensor: An approach utilising transceivers method 

      Mohd Hafiz, Fazalul Rahiman; Zulkarnay, Zakaria; Ruzairi, Abdul Rahim (Institute of Electrical and Electronics Engineering (IEEE), 2008-05-13)
      Direct analysis of the internal characteristics of process plant has become a widespread need in order to improve the design and operation of the equipment especially in liquid/gas two phase flows. In recent years, the ...

    • Ultrasonic tomography - image reconstruction algorithms 

      Mohd Hafiz, Fazalul Rahiman, Dr; Ruzairi, Abdul Rahim, Prof. Dr.; Herlina, Abdul Rahim, Dr.; Siti Zarina, Mohd Muji; Elmy Johana, Mohamad, Dr (International Journal of Innovative Computing, Information and Control (IJICIC), 2012-01)
      This paper focuses on image reconstruction algorithms for use in ultrasonic tomography. There are three types of algorithms namely Linear Back Projection, Hybrid Reconstruction and Hybrid Binary Reconstruction that are of ...

    • Ultrasonic tomography imaging for liquid-gas flow measurement 

      Muhammad Jaysuman, Pusppanathan; Nor Muzakkir, Nor Ayob; Fazlul Rahman, Mohd Yunus; Khairul Hamimah, Abbas; Herlina, Abdul Rahim, Dr.; Loew,  Pei Ling, Dr.; Ruzairi, Abdul Rahim, Prof. Dr. ; Fatin Aliah, Phang Abdullah, Dr.; Mohd Hafiz, Fazalul Rahiman, Dr.; Zulkarnay, Zakaria (International Frequency Sensor Association (IFSA), 2013)
      This research was carried out to measure two-phase liquid - gas flow regime by using a dual functionality ultrasonic transducer. Comparing to the common separated transmitter-receiver ultrasonic pairs transducer, the dual ...

    • Ultrasonic tomography imaging for two-phase flow 

      Mohd Hafiz, Fazalul Rahiman; Ruzairi, Abdul Rahim; Mohd Hezri, Fazalul Rahiman; Mazidah, Tajjudin (Universiti Malaysia Perlis (UniMAP)Pejabat Timbalan Naib Canselor (Penyelidikan dan Inovasi), 2008-07)
      Real-time process monitoring is important in many areas of industry and scienti c research concerning liquid/gas two-phase ow, and is closely related to accurate measurement and control of hydrodynamic parameters such ...