Browsing Researchers by Title

Now showing items 1876-1895 of 3490

    • Lightweight fly ash-based geopolymer concrete 

      Omar A., Abdulkareem; Mohd Mustafa Al Bakri, Abdullah; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Khairul Nizar, Ismail, Prof. Madya Dr. (Trans Tech Publications, 2013)
      The experiments of this study were preformed to study the synthesis process for lightweight aggregate geopolymer concrete (LWAGC) using normal sand as a fine aggregate and expanded clay as lightweight aggregate. The LWAGC ...

    • Lightweight Heat Resistant Geopolymer-based Materials Synthesized from Red Mud and Rice Husk Ash Using Sodium Silicate Solution as Alkaline Activator 

      Hoc Thang, Nguyen; Trung Kien, Pham; Mohd Mustafa Al Bakri, Abdullah (EDP Sciences, 2017)
      Geopolymer is an inorganic polymer composite with potentials to replace Ordinary Portland Cement (OPC)-based materials in the future because of its lower energy consumption, minimal CO2 emissions and lower production cost ...

    • Limits of motion-background segmentation using fundamental matrix estimation 

      Shafriza Nisha, Basah, Dr.; Hoseinnezhad, Reza; Bab-Hadiashar, Alireza (IEEE Conference Publications, 2008)
      Images of a moving object acquired by a static camera typically contain two groups of image correspondences belonging to the object in motion and the static (or nearly static) background. For objects with relatively small ...

    • Linear and nonlinear optical susceptibilities and hyperpolarizability of borate LiNaB 4O 7 single crystals: Theory and experiment 

      Ali Hussain, Reshak, Prof. Dr.; Xuean, Chen; Auluck, Sushil, Dr.; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr. (American Institute of Physics., 2012-09)
      LiNaB 4O 7 was synthesized by employing high-temperature reaction methods. The purity of the sample was checked by x-ray powder diffraction. The optical properties were measured by analyzing the diffuse reflectance data ...

    • Linear and nonlinear optical susceptibilities and the hyperpolarizability of borate LiBaB9O15 single-crystal: theory and experiment 

      Ali Hussain, Reshak, Prof. Dr.; Chen, Xuean; Auluck, Sushil; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Chysky, Jan; Wojciechowski, Artur; Kityk, Ivan V. (American Chemical Society, 2013-11)
      The single-crystal borate LiBaB9O15 was synthesized by a high-temperature solution reaction and structurally determined by the single-crystal X-ray diffraction technique. It crystallizes in the noncentrosymmetric space ...

    • Linear optical susceptibilities of the oxoborate (Pb 3O) 2(BO 3) 2WO 4: Theory and experiment 

      Ali Hussain, Reshak, Prof. Dr.; Xuean, Chen; Auluck, Sushil, Dr.; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr. (Springer Science+Business Media, 2012-08)
      The optical susceptibilities have been investigated experimentally and theoretically for a newly synthesized oxoborate, (Pb 3O) 2(BO 3) 2WO 4. The crystal structure is composed of one-dimensional 1 ∞ [Pb 3O] 4+ chains ...

    • Linearity improvement of 5.2-GHz CMOS up-conversion mixer for wireless applications 

      Sohiful Anuar, Zainol Murad, Dr.; Mukhzeer, Mohamad Shahimin, Dr.; Pokharel, Ramesh Kumar, Prof.; Kanaya, Haruichi, Assoc. Prof.; Yoshida, Keiji, Prof (John Wiley & Sons, Inc., 2012-04)
      This letter presents linearity improvement up-conversion mixer at 5.2 GHz for wireless applications. The design is based on Gilbert-cell active double-balanced mixer using derivative superposition method for linearity ...

    • Lipase and protease production from Jatropha curcas cake : A review 

      Nurul Iwani, Alawi; Khairul Farihan, Kasim; Mohamed Zulkali, Mohamed Daud, Prof. Dr. (Universiti Malaysia Perlis (UniMAP), 2009-07-18)
      Jatropha cake is one of the best carbon sources among various carbohydrates because it is pure, inexpensive and available in mass supply. The utilization of Jatropha cake as substrate for enzyme production could be an ...

    • Lipase production from Jatropha curcas solid waste 

      Nurul Iwani, Alawi; Khairul Farihan, Kasim; Mohamed Zulkali, Mohamed Daud, Prof. Madya Dr. (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      Lipases produced by using agro-industrial residual or waste as substrate become interesting topic among the researchers. The aim of this study was to produce lipases by valorization the Jatropha solid waste as substrate ...

    • Load-displacement behavior of RBD palm stearin oil lubricant quantity in cold extrusion 

      Mohd Hafis, Sulaiman; Mohd Ridzuan, Mohd Jamir; Mohd Afendi, Rojan; Imaduddin Helmi, Wan Nordin; Boon, Raymond Whee Heng; Syahrullail, Samion, Dr. (Universiti Malaysia Perlis (UniMAP)Pusat Pengajian Kejuruteraan Mekatronik, 2012-02-27)
      Large consumption of lubricant may affect the environment due to their high potential of pollution. Therefore, there is significant demand to provide a solution to this current condition by using alternative lubricant ...

    • Location tracking system using wearable on-body GPS antenna 

      Thennarasan, Sabapathy; Mohd Amirudin, Mustapha; Muzammil, Jusoh; Shakhirul, Mat Salleh; Soh, Ping Jack (EDP Sciences, 2017)
      An on-body location tracking system is developed and integrated with a wearable GPS antenna. Such system is beneficial in human location tracking of patients and elderly within a radius of 1 km. The system consists of a ...

    • Long term overheating failure of a closed recirculation system water cooling pipe 

      Mohd Arif Anuar, Mohd Salleh; Shaiful Rizam, Shamsudin; Azmi, Kamardin; Hafizan, Hassan (SIRIM, 2010-11-22)
      Catastrophic failure is often associated with a large temperature rise. This situation may lead to a drastic deterioration in material strength where a cooling system is important for a smooth system plant operation to ...

    • Loss prediction of induction motor using OPERA 2D software 

      Ismail, Daut, Prof. Dr.; Anayet, Karim; Pungut, Ibrahim; Yanawati, Yahya; Nor Shafiqin, Shariffuddin; Faizal (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      The paper discusses the factors which determine the losses of induction motor. The loss mechanisms are described in this paper and it is related to the performance and design characteristics of induction motor such as ...

    • Lost Metal Detector Robot 

      Low, Tian Chuan (Far East University, Taiwan, 2012-02-11)
      Lost Metal Detector Robot is capable to search and locate lost and misplaced metal items.

    • Loudspeaker fault detection using artificial neural network 

      Paulraj, Murugesa Pandiyan, Prof. Madya; Sazali, Yaacob, Prof. Dr.; Saad, M. R. (Institute of Electrical and Elctronics Engineering (IEEE), 2009-03-06)
      Traditionally, loudspeaker's quality control has been done manually and inspection of loudspeaker faults is time consuming and causes error in the quality evaluation. In order to reduce the time consumption and errors in ...

    • Low and high temperature isothermal aging effect on morphology and diffusion kinetics of intermetallic compound (IMC) for Sn-Cu-Si ₃N₄ composite solder 

      Norainiza, Saud; Najib Saedi, Ibrahim; Mohd Arif Anuar, Mohd Salleh (Trans Tech Publications, 2014)
      The effect of excessive intermetallic growth to the reliability of solder joints become major problem in electronic devices industry. In this study, we used Sn-Cu-Si₃N₄ composite solder to observe the intermetallic compound ...

    • Low complexity burst allocation algorithm with high frame utilization for Mobile WiMAX (802.16e) 

      Zaid G., Ali; R. Badlishah, Ahmad, Prof. Dr.; Abid, Yahya, Dr.; L. A., Hassnawi; Jaafar Adhab, ALdhaibani (Institute of Electrical and Electronics Engineers (IEEE), 2013-04)
      Burst allocation is one of the important parameter that affects the performance of the Mobile WiMAX systems. The burst allocation algorithm is responsible about calculating the appropriate dimensions and location of each ...

    • Low cost detection of pH and its effect on the capacitive behavior of micro-gap sensor 

      Qazi Muhammad, Humayun; Uda, Hashim, Prof. Dr.; Tijjani Adam, Shuwa (Trans Tech Publications, 2014)
      The article describes the fabrication and characterization of silver microgap sensor on silicon substrate. By employing cheap photolithography process the proposed microgap sensor has been fabricated. The silver microgap ...

    • Low cost diffuser based micropump using pinch actuation 

      Chee, Pei Song; Ruzairi, Abdul Rahim; Uda, Hashim, Prof. Dr.; Rashidah, Arsat; Leow, Pei Ling (Scientific.net, 2011-12)
      Planar pinch micropump with the integration of two diffuser valve elements has been reported. The fabrication of the micropump is carried out by utilizing simple hot embossing technique for microdiffuser imprinting and ...

    • Low cost fabrication of micromixer and microchamber for microfluidic lab-on-chip 

      Uda, Hashim, Prof. Dr.; Tijjani Adam, Shuwa; M. Wesam, Al-Mufti; Ling, Peter Jie Lung; Shahrul Aizzam, Ariffin (Institute of Electrical and Electronic Engineers (IEEE), 2012)
      Microfluidic technology has been given the contribution in biomedical and chemistry. The testing and diagnosis on bio-reagents has the efficiency increased through the implementation of microfluidic technology, such as lab ...