Vol 13, No 4 (2017)

October - December

Table of Contents

Research Article

Synthesis and characterization of composite polyaniline as hydrogen gas detector
Alister Genndi Willis, Saharudin Haron
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559-562
A penalized likelihood approach to model the annual maximum flow with small sample sizes
Nur Farhanah Kahal Musakkal, Su Na Chin, Khadizah Ghazali, Darmesah Gabda
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563-566
Boundary layer flow of mixed convection viscoelastic micropolar fluid over a horizontal circular cylinder with aligned magnetohydrodynamic effect
Laila Amera Aziz, Abdul Rahman Mohd Kasim, Mohd Zuki Salleh, Sharidan Shafie, Wan Nur Syahidah Wan Yusoff
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567-571
Molybdenum disulfide (MoS2) – based, tunable passively Q switched thulium-fluoride fiber (TFF) laser
Siti Aisyah Reduan, Harith Ahmad
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572-575
The characterization of regular ordered Gamma semigroups in terms of (E,EVq_k)-fuzzy Gamma ideals
Ibrahim Gambo, Nor Haniza Sarmin, Hidayat Ullah Khan, Muhammad Faiz Khan
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576-580
FBG as air pressure sensors on generic UTM-LST half model
Muhammad Izuan, Raja Kamarulzaman Raja Ibrahim, Shabudin Bin Mat, Asrul Izam Bin Azmi
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581-583
Effects of diversification of assets in optimizing risk of portfolio
Dare Jayeola, Zulhaimy Ismail, Suliadi Firdaus Sufahani
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584-587
An n-th section line search in conjugate gradient method for small-scale unconstrained optimization
Muhammad Imza Fakhri, Mohd Rivaie Mohd Ali, Ibrahim Jusoh
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588-592
Estimation of Terrestrial gamma radiation (TGR) dose rate in characteristic geological formations of Jos Plateau, Nigeria
Habu Tela Abba, Wan Muhammad Saridan Wan Hassan, Muneer Aziz Saleh, Abubakar Sadiq Aliyu, Ahmad Termizi Ramli
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593-597
Preparation and characterization of PTFE flat sheet membrane: Effect of sodium benzoate content
Faezeah Abd Ghani, Khaidir Hamzah, Wan Norharyati Wan Salleh, Hasimah Mohamed
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598-601
The independence polynomial of conjugate graph and noncommuting graph of groups of small order.
Nabilah Najmuddin, Nor Haniza Sarmin, Ahmad Erfanian
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602-605
Conversion of chicken viscera into protein hydrolysate for palatant production
Muhammad Afiq Khir Anuar, Nur Husna Haron Narashid, Madihah Md Salleh, Adibah Yahya
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606-611
Stability of fractional order parabolic partial differential equations using discretised backstepping method
Muhammad Zaini Ahmad, Ibtisam Kamil Hanan, Fadhel Subhi Fadhel
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612-618
SPR sensor for detection of heavy metal ions: Manipulating the EM waves polarization modes
Wan Maisarah Mukhtar, Razman Mohd Halim, Karsono Ahmad Dasuki, Affa Rozana Abdul Rashid, Nur Athirah Mohd Taib
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619-622
Insights into the physicochemical properties of the Malaysian oil palm leaves as an alternative source of industrial materials and bioenergy
Emmanuel Onoja, Nursyafreena Attan, Sheela Chandren, Fazira Ilyana Abdul Razak, Aemi Syazwani Abdul Keyon, Naji Arafat Mahat, Roswanira Abdul Wahab
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623-631
Theoretical investigation of the lattice energy of urea: Insight from DFT using systematic cluster method
Nur Najwa Alyani Mohd Nabil, Lee Sin Ang
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632-636
MHD heat transfer flow of Casson fluid past a stretching wedge subject to suction and injection
Imran Ullah, Sharidan Shafie, Ilyas Khan
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637-641
Forecasting of crude palm oil price using hybridizing wavelet and group method of data handling model
Huma Basheer, Azme Khamis
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642-648
State machine of place-labelled petri net controlled grammars
Nurhidaya Mohamad Jan, Fong Wan Heng, Nor Haniza Sarmin, Sherzod Turaev
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649-653
Free convection flow of micropolar fluids over an oscillating vertical plate
Asma Khalid, Ilyas Khan, Sharidan Shafie
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654-658
The conjugacy class graph of some finite groups and its energy
Rabiha Mahmoud, Nor Haniza Sarmin, Ahmad Erfanian
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659-665
New fuzzy generalized bi Γ-ideals of the type (∈,∈∨qk) in ordered Γ-semigroups
Ibrahim Gambo, Nor Haniza Sarmin, Hidayat Ullah Khan, Faiz Muhammad Khan
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6666-670
Isotherm studies of methylene blue adsorption onto waste tyre pyrolysis powder-based activated carbons
Mohd Shafiq Hakimi Mohd Shaid, Muhammad Abbas Ahmad Zaini, Noor Shawal Nasri
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671-675
Effect of coolant temperature and cooling time on fractional crystallization of biodiesel and glycerol
Shafirah Samsuri, Nurul Aini Amran, Loh Jia Zheng, Muhammad Muhaimin Mohd Bakri
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676-679
Optimization and effect of supercritical carbon dioxide extraction conditions on global oil yield and eugenol from piper betle leaves
Nur Husnina Arsad, Mohd Azizi Che Yunus, Zuhaili Idham
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680-684
Kinetic extraction of basic dye using vegetable oil as a solvent
Norasikin Othman, Norul Fatiha Mohamed Noah, Ooi Zing Yi, Muhammad Bukhari Rosly, Hilmi Abdul Rahman, Roslina Rashid
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685-689
Effect of magnetic field on the synthesis of well-aligned TiO2-5CB by sol-gel method
Nur Izzati Abu Bakar, Sheela Chandren, Nursyafreena Attan, Leaw Wai Loon, Hadi Nur
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690-692
Improvement of estimation based on small number of events per variable (EPV) using bootstrap logistics regression model
Muhamad Safiih Lola, Nurul Hila Zainuddin, Mohd Noor Afiq Ramlee, Muhamad Na’eim Abdul Rahman, Mohd Tajuddin Abdullah
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693-704
Laser surface roughening on copper analyzed using SEM-EDX
Mohd Zulfahmi Bahaudin, Noriah Bidin, Hazri Bakhtiar
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705-707
Morphology and luminescence of photo-electrochemically synthesized porous silicon: Influence of varying current density
Asad Thahe, Hazri Bakhtiar, Noriah Bidin, Zainuriah Hassan, Zainal Abidin Talib, Uday Basheer, Dauda Abubakar, Muhammad Aizi Mat Salim, Motahher Abdallah Qaeed, Hasan Alqaraghuli
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708-710
Representation of multi-connected system of Fuzzy State Space Modeling (FSSM) in potential method based on a network context
Jibril Aminu, Tahir Ahmad, Surajo Sulaiman
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711-716
A combination of Broyden-Fletcher-Goldfarb-Shanno (BFGS) and n-th section method for solving small-scale unconstrained optimization
Atikah Ramli, Ibrahim Jusoh, Mohd Rivaie Mohd Ali
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717-720
Estimating relative risk for dengue disease in Peninsular Malaysia using INLA
Nurul Syafiah Abd Naeeim, Nuzlinda Abdul Rahman
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721-727
The n-th section method: A modification of Bisection
Mohd Rivaie Mohd Ali, Muhammad Imza Fakhri, Nujma Hayati, Nurul Atikah Ramli, Ibrahim Jusoh
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728-731
Carbon source screening for nitrate remediation in permeable recative barrier: Ion chromatography technique
Muntaka Dahiru, Nor Kartini Abu Bakar, Ismail Yusoff, Magaji Ladan
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732-736
Modeling of decolorisation dyes by ozonation techniques using Levenberg-Marquardt neural network
Siti Fatimah, Wiharto Wiharto
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737-741
Operator inequalities involving Khatri-Rao Sums and Moore-Penrose inverses
Arnon Ploymukda, Pattrawut Chansangiam
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742-746
An overview of transboundary haze studies: The underlying causes and regional disputes on Southeast Asia Region
Ku Mohd Kalkausar Ku Yusof, Azman Azid, Mohd Saiful Samsudin, Mohd. Asrul Jamalani
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747-753
Strain analysis in ferritic filler weldment by using the modified Williamson-hall method
Mohammad Dani, Aziz Khan Jahja, Parikin Parikin, Andon Insani, Riza Iskandar
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754-759
Alternative pathway to brominate 2,13-benzothiadiazole: Preparation of 4,7-dibromobenzo[c]-1,2,5-thiadiazole via N-bromosuccinimide
Shu Er Tan, Mohd. Sani Sarjadi
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760-763
A preliminary study of marine water quality status using principal component analysis at three selected mangrove estuaries in East Coast Peninsular Malaysia
Saiful Iskandar Khalit, Mohd Saiful Samsudin, Azman Azid, Kamaruzzaman Yunus, Muhammad Amar Zaudi, Zati Sharip, Syazrin Syima Sharifuddin, Tariq Mubarak Husin
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764-768
On bonded indian and uniformly parallel insertion systems and their generative power
Ahmad Firdaus Yosman, Markus Holzer, Bianca Truthe, Fong Wan Heng, Sherzod Turaev
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769-773
Polyethersulfone/polyvinyl acetate blend membrane incorporated with TiO2 nanoparticles for CO2/CH4 gas separation
Mohd Afzan Abdullah, Hilmi Mukhtar, Hafiz Abdul Mannan, Yeong Yin Fong, Maizatul Shima Shaharun
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774-777
Adsorption of ammonia nitrogen by jackfruit (Artocarpus heterophyllus) seeds: Isotherms and kinetic modeling studies
Azreen Ibrahim, Lija Yusof, Abu Zahrim Yaser
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778-783
On the commutativity degree of metacyclic groups of 5-power order using conjugation action
Siti Norziahidayu Amzee Zamri, Nor Haniza Sarmin, Sanhan Muhammad Salih Khasraw, Mustafa Anis El-Sanfaz, Hamisan Rahmat
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784-787
Polycyclic transformations of crystallographic groups with quaternion point group of order eight
Siti Afiqah Mohammad, Nor Haniza Sarmin, Hazzirah Izzati Mat Hassim
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788-791
Thermoluminescence studies of calcium metaborate (CaB2O4) nanocrystals synthesized by solution combustion method
Tengku Nurul Hidayah Tengku Kamarul Bahri, Rosli Hussin, Nor Ezzaty Ahmad
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792-797
The unsteady mixed convection flow of rotating second grade fluid in porous medium with ramped wall temperature
Ahmad Qushairi Mohamad, Ilyas Khan, Nor Athirah Mohd Zin, Zulkhibri Ismail, Sharidan Shafie
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798-802
Modeling of lead (II) adsorption on sodium hydroxide treated rice husk: Fixed-bed studies
Abdurrahman Garba, Hatijah Basri, Noor Shawal Nasri, Umar Hayatu Siddiq, Abdul Rasheed Abdul Rahman
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803-806
Structural and luminescent characteristic of Sm3+ doped magnesium sulfide borate red phosphor for white LED
Saddiq Abubakar Dalhatu, Rosli Hussin, Karim Deraman, Bulus Ibrahim, Yamusa Abdullahi, Aliyu Mohammed
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807-811
High voltage powder spray coating as a new method for the preparation of carbon-titania coated stainless steel
Farah Syuhada Abdul Halim, Sheela Chandren, Madzlan Aziz, Leaw Wai Loon, Hadi Nur
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812-816
Effect of H2O/SiO2 Molar Ratio on Direct Synthesis of ZSM-5 from Bangka’s Kaolin Without Pretreatment
Djoko Hartanto, Rendy Muhamad Iqbal, Wahyu Erizky Shahbihi, Eko Santoso, Hamzah Fansuri, Ani Iryani
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817-820
Single sphere model fitting of supercritical carbon dioxide extraction from Quercus infectoria galls
Hasmida Mohd Nasir, Liza Md Salleh, Muhammad Syafiq Hazwan Ruslan, Mohd Amzar Mohamed Zahari
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821-824
A review on the geotechnical and engineering characteristics of marine clay and the modern methods of improvements
Mohammed Ali Mohammed Al-Bared, Aminaton Marto
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825-831
Adsorption study of Congo Red Dye with ZSM-5 directly synthesized from bangka kaolin withouth organic template
Ani Iryani, Moh Mualliful Ilmi, Djoko Hartanto
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832-839
Phytochemical, cytotoxicity and antioxidant studies on the stem bark of Piper arborescens
Nicholas Anak Daniel, Fasihuddin Badruddin Ahmad, Zaini Assim, Chua Hun Pin
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840-845