Thumbnail | Name | Publication Date | First Public Date | Contributors |
Novel piezoelectric material characterization with hysteresis, creep, vibration and saturation non-linearity effects /Dr. Ahmad Zhafran Ahmad Mazlan This research aims to investigate the presence of four non-linear characteristics (i.e., hysteresis, saturation, creep and vibration) when a piezoelectric patch material is acted as actuator for the AVC of a beam. The parameters such as frequencies and voltages are taken into account for the piezoelectric patch material characterization and the vib... | 9/23/2020 | 8/15/2019 | Dr. Ahmad Zhafran Ahmad Mazlan - Author | |
Evaluation of TBM tunnel with respect to stability agains spalling / Prof Madya Dr. Mohd Ashraf Mohd Ismail Abstract. As the depth of tunnels and underground construction increases, instability occurs in the form of rock bursting or spalling because of the induced stresses.Spall ing may appear as a strong compressi ve stress causing crack growth behind the excavated surface and buckling of the thin rock slabs. In this paper, we describe how to reduce th... | 11/12/2019 | 8/1/2019 | Prof. Madya Dr. Mohd Ashraf Mohd Ismail - Author | |
Understanding of photo-degradafion mechanism in nr latex with the incorporation of surface modified bi-metal oxide/Assoc.Prof. Dr Nadras Othman The aim of this work is to prepare I-NR using a photodegradation method, hence to characterize its physical and chemical properties. In this study, UV light was used to degrade NR in latex state. Reaction parameters such as UV radiation, temperature, hydrogen peroxide, reaction time, DRC and stabilizers showed synergistic effect and influenced the ... | 9/24/2020 | 7/30/2019 | Assoc.Prof. Dr Nadras Othman - Author | |
Fundamental studies on characteristics of nested conwip for semiconductor production scheduling environment /Prof. Ir.Dr. Chin Jen Feng The six months progress report underlines the research project development ill date. Works have been focused on ccrnpleting the first two milestones albelt with slightly delay. Tt.e progress will be picking up with the expected arrival of postgraduate student at the end of Dec 2014. Therefore before the studern arrival . expenditure is purposely... | 6/17/2019 | 6/12/2019 | Prof. Ir.Dr. Chin Jen Feng - Author | |
Characterization and efficacy evaluation of modified collagen hydrogel with tethered nanocurcumin/Dr. Masrina Mohd Nadzir corcumin; collagen; genipin | 6/14/2019 | 6/12/2019 | Dr. Masrina Mohd Nadzir - Author | |
Formulation of a robust framework of image enhancement for non-uniform illumination and low contrast images/Prof. Ir. Dr. Nor Ashidi Mat Isa Non-uniform illummination and low contrast issues are often encountered in acquired digital images. Inevitable external factor such such as irnproper lighting conditions due to the nature of the scene (rnicrcscopic or underwater) to be captured has caused the non-homogeneous brightness and loss of details in the image. Improving the non-unifo... | 6/17/2019 | 6/12/2019 | Prof. Ir. Dr. Nor Ashidi Mat Isa - Author | |
Preparation of functionalized adsorbents from natural clays by physical, chemical and physio-chemical modifications a fundamentals investigation/Dr. Foo Keng Yuen Tiie versatility of natural clay and their ability to adsorb a variety of environmental contaminants present in the water effluents has attracted aesthetic concem among environmentalist. These practical applications rely primanly on the diversity of natural clay structure to retain to relai harmlul and undesirable substance from the immediate e... | 6/18/2019 | 6/12/2019 | Dr. Foo Keng Yuen - Author | |
Embolic signal identification with novel sonographic feature and fusion algorithm for automated embolization detection/Prof. Madya Dr. Dzati Athiar Ramli Stroke is the third leading cause of death for patients and commonly caused by embolus (plaque, blood clots, bubbles, etc) that travel to the brain anf lodge in the bloodstream. Many studies on strokes especially on automated detection of emboli signals have been reported: however, those studies only consider signal at certain topographic area of ... | 6/14/2019 | 6/12/2019 | Prof. Madya Dr. Dzati Athiar Ramli - Author | |
Formulation of novel distributed adaptive observer (dao) algorithm for multi agent system with weak inter-agent communication to solve for specific lyapunov function/Dr. Muhammad Nasiruddin Mahyuddin Multiagent system appear in various areas such as cooperative control of unman ned aerial vehicles. autonomous underwater vehiclos, consensus problem of communication networks, formaticn control of mobile robols. Distributed design paradigm is preferred over the centralised approach because the former provides convenient in design, impelementatio... | 6/17/2019 | 6/12/2019 | Dr. Muhammad Nasiruddin Mahyuddin - Author | |
The study of the catalytic activity for graphene formation under atmospheric pressure chemical vapor deposition/ Prof. Ir. Dr. Abdul Rahman Mohamed Large area graphene (LAG) were synthesized and grown on copper (Cu) foil and nickel (Ni) foil. The synthesis were carried out using atmospheric pressure chemical vapor deposition and methane
decomposition. The highly uniform and i-•' of high quality LAG was produced and was evaluated by Raman spectroscopy mapping, electron diffraction and. trans.m... | 6/18/2019 | 6/12/2019 | Prof. Ir. Dr. Abdul Rahman Mohamed - Author | |
Effect of Calophyllum Inophyllum biodiesel-diesel blends on combustion, performance, exhaust particulate matter and gaseous emissions in a multi-cylinder diesel engine In this work, the effects of add ing of ined ible Calophyllum lnophyllum biodiescl to diesel fuel on performance, gaseous emissions, pnrticulnte matter (PM) a nd combustion cha racter istics were stud ied in a med i um-du ty, high• pressu re common- ra il turbocharged four-cylinder diesel engine under different speed and torq ue conditions. The k... | 8/23/2019 | 6/1/2019 | Mohd Azmi Ismail - Author Jian Wang - Author | |
Response of kluyveromyces marxianus against osmotic stress kinetics, mechanism, and characterization during very high gravity bioethanol fermentation_Dr. Khairiah Abd Karim Stress induced by ethanol accumulation is a fe ctor that inhibits cellular growth during fermentation and reduced ethanol yields. To determine the effect of ethanol during growth of K/uyveromyces marxianus, fermentation wus performed at 40°C, 150 rpm for 72 h, in the presence of various ethanol concontrntions (5 - 25 % (v/v)). Under the condi... | 6/13/2019 | 3/4/2019 | Dr. Khairiah Abd Karim - Author | |
Grain growth control mechanism of lead zirconate titanate electroceramic by doping la3+ and sr2 /Prof. Madya Dr. Hasmaliza Mohamad Addition of calcium ion in La and Sr co-doped lead zirconate titanate (PLSZT) was investigated to improve the dielectric and piezoelectric properties of PLSZT system. Ca doped PLSZT was prepared using high energy planetary ball mill, pelletized and sintered at 1200 °C for 3 hours. XRD results showed that all Ca-doped PLSZT samples present perovsk... | 6/12/2019 | 3/4/2019 | Prof. Madya Dr. Hasmaliza Mohamad - Author | |
Mechanical compatibility and degradation behavior of mechanically alloyed biodegradable hydroxyapatite disprersed magnesium-zinc composite/ Prof. Dr. Zuhailawati Hussain This work aims to investigate the mechanical performance and biodegradation behaviour of magnesium-zinc/hydroxyapatite (Mg-Zn/HA) composttC\ that wac; fabricated via different powder mixing techniques. Mg-Zn/HA composite which was fabric ted through the mechanical alloying technique and milled for 6 hours attained the best combmotlon of improve... | 6/12/2019 | 3/4/2019 | Prof. Dr. Zuhailawati Hussain - Author | |
Investigation on the durability, growth mechanism and bonding interactions of super-hydrophobic surfaces madefrom waste materials/ Prof. Ir. Dr. Srimala Sreekantan Considerable efforts have been made for the fabrication of up r hydrophobic coating for self-cleaning applications. However,a facile, eco-friendly and cost effective co | 6/11/2019 | 3/4/2019 | Prof. Ir. Dr. Srimala Sreekantan - Author | |
Fundamentals on the interaction of metal organic frameworks with electrospun multi-walled carbon nanotubespolyvinyl alcohol in the formarion of mixed matrix membrane /Prof. Madya Dr. Tan Soon Huat In this study, novel asymmetric membranes with pre-selective layer consist of electrospun poly(vinyl alcohol) (PVA) nanofibres and electrospun PVA nanofibres integrated with two different types of hydrophilic fillers i.e. micron-si .ed copper benzene-1,3,5-tricarboxylate (Cu BTC) and nano-sized carboxyl multi-walled carbon nunotube (COOH-M... | 6/12/2019 | 3/4/2019 | Prof. Madya Dr. Tan Soon Huat - Author | |
Investigation of seismic vulnerability of reinforced concrete buliding in malaysia using fragility curves approach/Prof. Madya Dr. Fadzli Mohamed Nazri In seismic risk mitigation policies, fragility functions of Px1st1ng buildings play a fundamental role. In this study, a procedure to evaluate the analytical flclQihty curves for moment resisting frame of reinforced concrete buildings will be presented The M l!.>rnic capacity of the selected models representing the existing RC buildings will... | 6/10/2019 | 3/4/2019 | Prof. Madya Dr. Fadzli Mohamed Nazri - Author | |
Synergistic response of pogostemon cablin (blanco) benth cell suspension cultures to precursor feeding and elicitation towards the productions of patchouli alcohol /Dr. Khairiah Abd Karim The individual and combined effects of precursor addition using cis-farnesol (CF) and elicitation using methyl jasmonate (MeJA), chitosan (CHI), yeast extract (YE) and Pycnoporous sanguineus (PS) were investigated to enhance the synthesis of patchouli alcohol (PA) in suspension cultures of Pogostomon cab/in (Blanco) Benth. Cultures added wit... | 3/21/2019 | 24/7/2018 | Dr. Khairiah Abd Karim - Author | |
Analysis of rock burst event in deep tbm excavation of pahang-selangor raw water transfer tunnel /Romziah Azit, Mohd Ashraf Mohamad Ismail Tunneling under high overburden and high in-situ stress can pose a major threat to the tunnel construction due to the phenomenon of rock burst. Rock burst is a typical phenomenon caused by underground excavation due to stress release and rock explosion where the rock masses broken in large or small pieces. Thus, predicting the occurrence of this ph... | 17/12/2018 | Romziah Azit - Author Mohd Ashraf Mohamad Ismail - Author | ||
Mechanics of mineral and oxides based 3D cordierite tempalte_Prof Madya Dr. Hasmaliza Mohamed In this study, cordierite was prepared by glass-route method using Si02, A1203 and MgO as raw materials. Cordierite powder produced was then used to fabricate 3-D porous cordierite using gel casting method using different amount of GRF (2.5, 4.0 and 6.0g) and dried egg white (DEW) (1.5, 2.5 and 4.0g) as binder to observed their effect on the streng... | 2/26/2020 | 12/12/2018 | Prof. Madya Dr. Hasmaliza Mohamad - Author | |
Semisolid nucleation mechanism of open cell foam aluminium/Dr. Anasyida Abu Seman @ Hj Ahmad, Dr. Nurulakmal Mohd Sharif , Prof. Ir. Dr. Zuhailawati Hussain Gravity die casting and squeeze casting are the techniques used for the fabrication of hypoeutectic open-cell Al-Si foams which are characterized and studied for their energy absorbing quality in compression tests. The effect of different amounts of sodium chloride (NaCl) (up to 56 vol.%) as a space holder in the casting of aluminum foam on the mor... | 3/5/2020 | 12/11/2018 | Dr. Anasyida Abu Seman @ Hj Ahmad - Author Dr. Nurulakmal Mohd Sharif - Author Prof. Ir. Dr. Zuhailawati Hussain - Author | |
Advanced workshop on hyperbolic conservation laws _Prof. Ismail Farzad | 2/26/2020 | 11/16/2018 | Prof. Ismail Farzad - Author | |
Brittle failure simulation of Pahang Selangor raw water transfer tunnel under rock overstressing/Heyam H. Shaalan, Mohd Ashraf Mohamad Ismail, Romziah Azit Modelling a rock brittle failure around underground openings is used to simulate or contemplate the shape, depth and extent of the failure zone and achieved a suitable ground support system, consequently the underground construction safety increases and the construction cost decreases. This study analyses the critical section of the Pahang Selangor... | 3/5/2020 | 10/29/2018 | Heyam H. Shaalan - Author Mohd Ashraf Mohamad Ismail - Author Romziah Azit - Author | |
Analysis of rock burst behaviour under overstressed rock in deep tunnel excavation across the titiwangsa range, Malaysiatle of research/Prof. Madya Dr Mohd Ashaf Bin Mohamad, Prof. Madya Dr. Fadzli Mohamaed Nazri In this study a critical section of the Pahang—Selangor raw water transfer tunnel under high overburden stress creates a zone of rock failure along the sides of the tunnel. This zone damages the steel fiber-reinforced shotcrete lining, and the observed failure depth in this zone is approximately 0.3 m. Elastic analysis model, elastic-perfectly plas... | 3/4/2020 | 9/1/2018 | Prof. Madya Dr. Mohd Ashaf Mohamad - Author | |
Investigation of improvement on the sensitivity of low noise low power cmos optical crop sensor/Arjuna Marzuki, Mohd Tafir Mustaffa, Norlaili Mohd. Noh and Basir Saibon Plant phenotyping studies represent a challenge in agriculture application. The studies normally employ CMOS optical and image sensor. One of the most difficult challenges in designing the CMOS sensor is the need to achieve good sensitivity while achieving low noise and low power simultaneously for the sensor. At low power, the CMOS amplifier in th... | 3/9/2020 | 8/31/2018 | Arjuna Marzuki - Author Mohd Tafir Mustaffa - Author Norlaili Mohd Noh - Author Basir Saibon - Author |