Browsing Center of Excellence for Geopolymer and Green Technology (CEGEOGTECH) (Articles) by Title

Now showing items 82-101 of 130

    • NaAuS chicken-wire-like semiconductor: electronic structure and optical properties 

      Ali Hussain, Reshak, Prof. Dr.; Saleem Ayaz, Khan; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Jiri Bila (Elsevier, 2014-01)
      The electronic structure, charge density and optical properties of NaAuS a chicken-wire-like semiconductor was calculated using full potential linear augmented plane wave based on density functional theory. The Ceperley-Alder ...

    • Natural Fiber Filament Wound Composites: A Review 

      Suriyati, Mohamed Ansari; Che Mohd Ruzaidi, Ghazali; Kamarudin, Hussin (EDP Sciences, 2017)
      In recent development, natural fibers have attracted the interest of engineers, researchers, professionals and scientists all over the world as an alternative reinforcement for fiber reinforced polymer composites. This is ...

    • Natural rubber/styrene butadiene rubber/recycled nitrile glove (NR/SBR/rNBRg) ternary blend: Curing characteristics and swelling test 

      Nik Zakaria, Nik Yahya; Nik Noriman, Zulkepli, Dr.; Mohd Arif Anuar, Mohd Salleh; Hanafi, Ismail, Prof.; Ragunathan, Santiagoo (Trans Tech Publications, 2014)
      Curing characteristics and swelling behavior of natural rubber/styrene butadiene rubber/recycled nitrile glove (NR/SBR/rNBRg) blends were investigated. Eleven composition ratio; 50/50/0, 50/40/10, 50/30/20, 50/20/30, ...

    • Natural rubber/styrene butadiene rubber/recycled nitrile glove (NR/SBR/rNBRg) ternary blend: Tensile properties & morphology 

      Nik Zakaria, Nik Yahya; Nik Noriman, Zulkepli, Dr.; Hanafi, Ismail; Sam, Sung Ting, Dr.; Santiagoo, Ragunanthan (AENSI Publisher All rights reserved, 2013-10)
      Recycling waste rubber products by utilising them in rubber blends had provided the simplest and most cost-effective ways in solving several environmental issues regarding the abundance of scrap rubbers. Discarded nitrile ...

    • The need to intensify research efforts in the alternative to lead shot 

      Baba Gowon; Kahtan S., Mohammed, Dr.; Shamsul Baharin, Jamaludin, Prof. Dr.; Alida, Abdullah (Trans Tech Publications, 2014)
      The problem of lead poisoning resulting from the use of lead shot in hunting waterbirds and shooting sports has led to the partial ban, voluntary restriction and complete ban of lead shot in some countries. The ban resulted ...

    • A new invention of thermal pad using sol-gel nano-silver doped silica film in plastic leaded chip carrier (PLCC) application by using computational fluid dynamic sofrware, CFD analysis 

      Mazlan, Mohamed; A. Rahim; Mohd Mustafa Al-Bakri, Abdullah; Iqbal, M. A.; Wan Yusra Hannanah, Wan Abdul Razak; Mohammad Shahril, Salim (Trans Tech Publications, 2013)
      Thermal pad is new technology in the world that been used in PLCC in order to reduce junction temperature to the minimum level in electronic components. Thermal Pad was made by using nano-silver as main material. Nano-silver ...

    • New processing method of kaolin-based geopolymer brick by using geopolymer brick machine 

      Muhammad Faheem, Mohd Tahir; Mohd Mustafa Al Bakri, Abdullah; Che Mohd Ruzaidi, Ghazali, Prof. Madya; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Mohd Izzat, Ahmad; Alida, Abdullah (Trans Tech Publications, 2014-01)
      With increased activity in construction, deficiency of building materials and construction waste improvements have encouraged the development of new building materials. Conventional construction bricks are usually made ...

    • Numerical investigation of heat transfer of twelve Plastic Leaded Chip Carrier (PLCC) by using computational fluid dynamic, FLUENT™ software 

      Mazlan, Mohamed; A. Rahim; Iqbal, M. A.; Mohd Mustafa Al Bakri, Abdullah; Wan Yusra Hannanah, Wan Abdul Razak; Mohd Nor Hakim, Hassan (Trans Tech Publications, 2013)
      Plastic Leaded Chip Carrier (PLCC) package has been emerged a promising option to tackle the thermal management issue of micro-electronic devices. In the present study, three dimensional numerical analysis of heat and fluid ...

    • On the structure of shape memory alloys 

      Cristian Acitei, Dragos; Victor Sandu, Andrei; Mohd Mustafa Al Bakri, Abdullah; Petrica, Vizureanu; Alida, Abdullah (Trans Tech Publications, 2013-12)
      The paper presents the obtaining of shape memory alloys, base copper and a diffractometer and microscopic study on some samples. The study was made on CuZnAl samples, obtained by classic casting and educated. The shape ...

    • Optoelectronic and thermoelectric properties of KAuX5 (X = S, Se): A first principles study 

      Wilayat, Khan; Ali Hussain, Reshak, Prof. Dr. (Springer Verlag, 2014-02)
      The electronic structure as well as optical and thermoelectric properties of the orthorhombic polychalcogenides of gold KAuX5 (X = S, Se) compounds have been investigated using full-potential linearized augmented plane ...

    • Optoelectronic and thermoelectric properties of KAuX5 (X = S, Se): A first principles study 

      Wilayat, Khan; Ali Hussain, Reshak, Prof. Dr. (Springer US, 2014-02)
      The electronic structure as well as optical and thermoelectric properties of the orthorhombic polychalcogenides of gold KAuX5 (X = S, Se) compounds have been investigated using full-potential linearized augmented plane ...

    • Photovoltaic characteristics of hybrid MEH-PPV-nanoparticles compound 

      Ali Hussain, Reshak, Prof. Dr.; Mukhzeer, Mohamad Shahimin, Dr.; Nurjuliana, Juhari; Vairavan, R. (Elsevier B.V., 2013)
      Organic solar cell research has vastly developed in recent years. These organic solar cells however are still limited to low power conversion efficiencies. This has led to the generation of photovoltaic cells based on ...

    • Physical and morphological properties of styrene butadiene rubber/recycled chloroprene rubber (SBR/CRr) blends - The effects of TOR as a compatibilizer 

      Ahmad Azrem, Azmi; Nik Noriman, Zulkepli, Dr.; Razif, Mohammad Nordin, Dr.; Sam, Sung Ting, Dr. (Trans Tech Publications, 2014)
      The effects of physical and morphological properties of TOR as a compatibilizer of styrene butadiene rubber/recycled chloroprene rubber (SBR/CRr) blends were investigated. Blends. Both uncompatibilised and compatibilised ...

    • Physicochemical properties of pyrolitic carbon black from waste tyres 

      Umi Fazara, Md. Ali, Dr.; Ishak, Jainoo; Khairul Nizar, Ismail, Assoc. Prof. Dr.; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Fahmi, Muhammad Ridwan, Dr. (Trans Tech Publications, 2014)
      Waste tyres which are mainly generated from automotive industries have become a major environmental problem to the local authorities, the tyre industries and tyre dealer. When tyres are no longer usable due to worn-out, ...

    • Potential of conformal cooling channels in rapid heat cycle molding: a review 

      Shayfull Zamree, Abd Rahim; Safian, Sharif; Azlan, Mohd Zain; Rozaimi, Mohd Saad; Mohd Fathullah, Ghazli@ Ghazali (Wiley Periodicals, Inc., 2014)
      Rapid heat cycle molding (RHCM) can eliminate the weld line, increase flow length, and improve surface quality of the molded parts. However, the cycle time is much longer as compared to the conventional injection-molding ...

    • Production of silicon carbide via grinding and heat treatment process 

      Noorina Hidayu, Jamil; Xian, W. Hui; Wan Mohd Arif, Wan Ibrahim; Faizul, Che Pa; Ruhiyuddin, Mohd Zaki (Trans Tech Publications, 2014)
      This study is to determine the properties and characterization of silicon carbide via grinding and heat treatment process. In this study, the raw materials used were waste glass and graphite powder. Silicon carbide was ...

    • Properties and behavior of Geopolymer Concrete Subjected to Explosive Air Blast Loading: a review 

      Nurul Aida, Mohd Mortar; Kamarudin, Hussin; Rafiza, Abdul Razak; Mohd Mustafa Al Bakri, Abdullah; Ahmad Humaizi, Hilmi; Andrei Victor, Sandu (EDP Sciences, 2017)
      The severe damage to civilian buildings, public area, jet aircraft impact and defense target under explosive blast loading can cause a huge property loss. Most of researcher discusses the topics on design the concrete ...

    • Properties of fresh palm oil fuel ash based geopolymer material 

      Moslih Amer, Salih; Abang Abdullah, Abang Ali, Ir. Prof.; Ramazan, Demirboga; Mohd Mustafa Al-Bakri, Abdullah (American-Eurasian Network for Scientific Information (AENSI), 2013-10)
      In this paper, palm oil fuel ash (POFA) was used as the soul material to produce geopolymer binder. Sodium silicate mixed with sodium hydroxide was used as alkaline activator to activate the palm oil fuel ash. Activator ...

    • Radiation shielding characteristics of concretes incorporates different waste materials 

      Ali Basheer, Azeez; Kahtan Sadiq, Muhammed, Dr.; Mohd Mustafa Al Bakri, Abdullah; Hana, Ihsan Hasan (Trans Tech Publications, 2014)
      Samples of concrete incorporate different waste materials such as iron filings, iron balls of used ball bearings and slags from steel industry were assessed for their anti-radiation attenuation coefficient properties. The ...

    • Review on the various ash from palm oil waste as geopolymer material 

      Zarina, Yahya; Mohd Mustafa Al Bakri, Abdullah; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Khairul Nizar, Ismail, Assoc. Prof. Dr.; Rafiza, Abdul Razak (Advanced Study Center Co. Ltd., 2013)
      The solid waste from palm oil mill industry has been increasing annually where it has been reported that the palm oil waste was produced 4 million tons/years in Malaysia only. Hence, the solution to overcome the problems ...