Browsing Muhammad Asri Idris, Associate Professor Dr. by Author "Muhammad Asri, Idris"

Now showing items 1-6 of 6

    • Analysis of particle size and XRD in ZnO-based varistor 

      Noor Azira, Mohd Noor; Mohabattul Zaman B. S., NS Bukhari, Prof Madya; Muhammad Asri, Idris; Noor Mariamadzliza, Mohd Nan (Universiti Malaysia PerlisSchool of Materials Engineering & School of Environmental Engineering, 2010-06-09)
      ZnO varistors doped with Bi2O3, Sb2O3, CoO, MnO2 and Cr2O3 were prepared separately by two mixing processes: conventional and masterbatching mixed-oxide process method. After the mixing process, the ZnO-based varistor ...

    • A cylindrical Barium Strontium Titanate (BST) dielectric resonator antenna for 5.0 GHz wireless LAN application 

      Azremi, Abdullah Al Hadi; Saidatul Norlyana, Azemi; Soh, Ping Jack; Muhammad Asri, Idris; Norsuria, Mahmed (Institute of Electrical and Electronics Engineering (IEEE), 2008-05-19)
      This paper presents a dielectric resonator antenna (DRA) suitable for wireless communication applications at 5.0 GHz. The proposed DRA utilizes a ferroelectric material, Barium Strontium Titanate (BST) in cylindrical form ...

    • Determination of crystal changes on sodium cobaltite (NaCo 2O4) by Reitveld analysis as a suitability function in thermoelectric materials 

      Muhammad Asri, Idris; Murizam, Darus; Norsuria, Mahmed (American Institute of Physics, 2010-03-11)
      Sodium Cobaltite, NaCo2O4 has been studied extensively as a new thermoelectric material. The cobalt oxide position in each sodium unit cell may determine the power produced by this type of thermoelectric materials. In this ...

    • Heart Beat Detector for Medical Applications Based on Barium Strontium Titanate (BST) Thinfilm Sensor 

      Johari, Adnan, Assoc. Prof. Dr.; Zul Azhar, Zahid Jamal, Prof. Dr.; Dr. Irzaman Sulaimen, Hussain; Sanna, Taking; Nur Juliana, Juhari; Muhammad Asri, Idris; Nurhayati, Sabani; Amylia, Hamzah (Kementerian Pengajian Tinggi Malaysia (KPTM), 2007-08-10)
      Our research deals with the development of Barium Strontium Titanate (BST) materials. These BST materials have applications in sensors and actuators. We have succeeded in developing instruments that measure preasure, heat, ...

    • Overview on high potential material for Thermoelectric and their structure 

      Muhammad Asri, Idris; Mohd Hisyam, M.; Syamsul Bahtiar, A. G.; Rohaya, A. M.; Nur Farhana, H.; Suzilawati, A. W. (Kolej Universiti Kejuruteraan Utara Malaysia, 2005-05-18)
      This report will review the most promising material for thermoelectric application (thermoelectric refrigerator and thermoelectric generator). Here we are concerned on the material selection with emphasizing on their ...

    • Visual studies on film boiling 

      Suhaimi, Illias; Muhammad Asri, Idris; Muhamad Saisuldin, Abdul Manan; H. Azmi; Mohd Fathullah, Ghazali (Universiti Malaysia Perlis, 2009-10-11)
      The purpose of this research is to study and examine the droplet bounding phenomena on carbon heated surface during film-boiling period, which occur when a water droplet collided with the heated surface at a very high ...