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Environmental Malaysia: History, Sovereignty & Statehood
(Hampstead Psychological Associates, 2020-04)
Malaysia is a federation that was formed by the 1963 Malaysia Agreement which now consists of the Federation of Malaya, Sabah and Sarawak. Prior to the formation of Malaysia, Federation of Malaya already have a constitution ...
Keperluan governan struktur teras Perlembagaan
(Universiti Malaysia Perlis (UniMAP), 2020-07)
Pelbagai suruhanjaya ditubuhkan sama ada untuk melaksanakan fungsi-fungsi tertentu yang ditetapkan di bawah Perlembagaan Persekutuan atau untuk memelihara hak-hak tertentu yang dijamin oleh undang-undang. Dewasa ini kita ...
Insight on the structural aspect of ENR-50/TiO2 hybrid in KOH/C3H8O medium revealed by NMR spectroscopy
(Elsevier, 2020)
The ring-opening reactions (ROR) of epoxide groups in epoxidized natural rubber/titania (ENR-50/TiO2) hybrid in potassium hydroxide/isopropanol medium were examined using NMR spectroscopy and supported by the FTIR technique. ...
Synthesis of sodium silicate from rice husk ash as an activator to produce epoxy-geopolymer cement
(IOP Publishing Ltd, 2021-03)
Rice husk ash (RHA), a byproduct of the rice industry, is the primary source of amorphous silica for producing sodium silicate solutions to replace standard commercial sodium silicate in geopolymer mixture design. The ...
Optimisation of Shrinkage and Strength on Thick Plate Part Using Recycled LDPE Materials
(MDPI AG, 2021-04-05)
Achieving good quality of products from plastic injection moulding processes is very challenging, since the process comprises many affecting parameters. Common defects such as warpage are hard to avoid, and the defective ...
Tool wear and surface evaluation in drilling fly ash geopolymer using HSS, HSS-Co, and HSS-TiN cutting tools
(MDPI AG, 2021-03-26)
This paper reports on the potential use of geopolymer in the drilling process, with respect to tool wear and surface roughness. The objectives of this research are to analyze the tool life of three different economy-grade ...
Self-Fluxing Mechanism in Geopolymerization for Low-Sintering Temperature of Ceramic
(MDPI AG, 2021-03-10)
Kaolin, theoretically known as having low reactivity during geopolymerization, was used as a source of aluminosilicate materials in this study. Due to this concern, it is challenging to directly produce kaolin geopolymers ...
Warpage optimisation using Recycled Polycar-bonates (PC) on Front Panel Housing
(MDPI AG, 2021-03-15)
Many studies have been done using recycled waste materials to minimise environmental problems. It is a great opportunity to explore mechanical recycling and the use of recycled and virgin blend as a material to produce new ...
Image analysis of surface porosity mortar containing processed spent bleaching earth
(MDPI AG, 2021-03-28)
Image analysis techniques are gaining popularity in the studies of civil engineering materials. However, the current established image analysis methods often require advanced machinery and strict image acquisition procedures ...
Behavior of alkali-activated fly ash through underwater placement
(MDPI AG, 2021-11-14)
Underwater concrete is a cohesive self-consolidated concrete used for concreting underwater structures such as bridge piers. Conventional concrete used anti-washout admixture (AWA) to form a high-viscosity underwater ...