Project Based Portal for CIS Department (fYP and TTP)

Knowledge management (KM) has been widely adopted in many organizations. Nevertheless, today, the line of education is gaining the acceptance towards KMKnowledge sharing is the most fundamental activity in knowledge management as it is the source of creating ideas for the knowledge. In higher learning education, knowledge sharing has increased the opportunities of the students in exchanging the ideas amon

Selected issues on the law of trust: a comparative study of judicial attitudes in Malaysia and United Kingdom / Sarah Rosley … [et al.]

This research paper outline on the judicial application of the trust mechanism in avoiding the doctrine of privity. It first identifies the issue and the situation in Malaysia and United Kingdom with reference to relevant cases. It also includes the approaches taken by the court in Malaysia and United Kingdom in deciding the cases related to doctrine of privity by using the trust mechanism. This research paper also outline on the differences based on legislation between the charitable trust in Malaysia and United Kingdom. It also includes the differences in Malaysia and United Kingdom on the doctrine of cy-pres as well as the taxation of trust. For this research paper, appropriate recommendation for charitable trust and doctrine of privity in Malaysia has been proposed and the overall conclusion are provided in Chapter 5 in the paper

Project Based Portal for CIS Department (fYP and TTP)

Knowledge management (KM) has been widely adopted in many organizations. Nevertheless, today, the line of education is gaining the acceptance towards KMKnowledge sharing is the most fundamental activity in knowledge management as it is the source of creating ideas for the knowledge. In higher learning education, knowledge sharing has increased the opportunities of the students in exchanging the ideas amon

Design And Development Of Power Conditioning Circuit For Impact-Based Piezoelectric Energy Harvester

Harvesting ambient energies from the surrounding can be realized by using piezoelectric mechanical transducer. This type of energy offering a prospect of powering low power electronic devices such as wireless sensor nodes which replacing the uses of batteries as the primary sources. Numerous studies have shown that the power densities of energy harvesting devices is around hundreds of microwatts. However, the power requirements for most electronic devices are in the range of micro to milliwatts. Furthermore, piezoelectric transducer generates high magnitude of output voltage; can reach up to hundreds Volts, but very low in term of current. This is the key challenge in developing an efficient power conditioning circuits that can offers an adequate output power for an optimum power transfer. In this project, a power conditioning circuits was developed for managing the power conversion process of a vibrational-based impact mode piezoelectric energy harvester. The proposed circuit should be able to enhance the generated output power from the piezoelectric by using a three conditioning units. It consists of an AC/DC rectifying circuits, step-down DC/DC buck converter and a storage capacitive bank. The power generator was implanted on the electrodynamic shaker with the acceleration level of 0.7 g at the resonant frequency of 42 Hz. Few power enhancement methods have been investigated in term of mechanical structural design and also on the proposed power conditioning circuitry itself. The generated output voltage from the harvester can be increased by 16.7% by using a proposed supporting base with a booster hole of 30 mm in diameter in order to increase the transducer’s strain displacement further. The analysis was conducted part by part before fully integrating them in a whole unit. For the first stage, the efficiency of the circuit can be enhanced by reducing the value of the parasitic components of the rectifying components; forward voltage drops of the diode, Vf and the capacitivity. The constructions of the rectifying circuits also affect the power conversion of the harvester system. It is found that full-wave Schottky bridge rectifier is the most efficient conversion circuit for piezoelectric energy harvester compared to the full-wave bridge MOSFET rectifier and specialized voltage doubler rectifier with 35.6% differences of 3.77 mW output power. Next, the system gets integrated with a regulated conversion circuit that has been designed to regulate at 3.3V with a hysteretic voltage mode control feedback system. As a conclusion, the proposed circuits managed to increase the regulated output current by 51.93% with the power conversion efficiency of 70.43% and 330 μW output power. A practical evaluation was conducted by employing an RF transmitter as the application load. It has been isolated first by using a push button during the capacitive charging process. It requires about 7.3 minutes to fully charge a 13.2 mF storage capacitor and able to transmit the encoded signal to the receiver in 16.03 s. For further improvement, the designs can be modified by employing the usage of supercapacitor as energy storage to increase the extracted output power of the harvester

Antibacterial activities of hydro distillation extract and crude extracts of mikania micrantha leaves / Nur Amalina Ahmad Safwan

The present research was conducted to determine and to compare the antibacterial activities of hydro distillation extract and crude extracts of M. micrantha leaves. The extracts were assayed for antibacterial activity against two types of Gram positive bacteria which are Staphylococcus epidermidis and Staphylococcus aureus and another two types of Gram negative bacteria which are Escherichia coli and Klebsiella pneumoniae using disc diffusion method. Chloramphenicol was used as the positive control. Among all of the extracts, only methanol extract succeed at inhibiting the growth of these four bacteria and showed concentration dependent activity against all the tested bacteria. The extract showed varies levels of antibacterial activity on different test strains. The methanol extract was found to be more effective against Gram positive bacteria as compared to Gram negative bacteria which due to the presence of outer membrane that functions as an effective barrier in those species. S. epidermidis was the most susceptible strain by showing the biggest inhibition zone while K. pneumoniae was resistant to the extract by showing smallest inhibition zone

Analysis of Ethnolinguistic Knowledge of Elementary School Teachers in Indonesia

Ethnolinguistics in the learning perspective is the knowledge that teachers have about regional languages that are related or included in learning. This study aims to determine the ethnolinguistic knowledge of classroom teachers in Indonesia Elementary School, to know the ways and obstacles experienced by teachers in implementing ethnolinguistics in-class learning at Indonesia primary school. This study uses the mix methods approach with the sequential explanatory design. The sample in this study were 18 teachers. The sampling technique used purposive sampling. The quantitative data collection technique used was in the form of a questionnaire. Qualitative data collection techniques used are interviews and document analysis. The questionnaire data shows that elementary school teachers in Indonesia have ethnolinguistic knowledge in the less good category with an average of 30.72. Interview data obtained results about the ways teachers use ethnolinguistics in the classroom in terms of 4 aspects and data on the constraints of teachers in implementing ethnolinguistics can be viewed from five aspects. Keywords: ethnolinguistic, regional language, implementation, teachers, elementary school. DOI: 10.7176/JEP/10-2-0

Toxicity of Metals to a Freshwater Ostracod: Stenocypris major

Adults of freshwater ostracod Stenocypris major (Crustacea, Candonidae) were exposed for a four-day period in laboratory conditions to a range of copper (Cu), cadmium (Cd), zinc (Zn), lead (Pb), nickel (Ni), iron (Fe), aluminium (Al), and manganese (Mn) concentrations. Mortality was assessed, and median lethal times (LT50) and concentrations (LC50) were calculated. LT50 and LC50 increased with the decrease in mean exposure concentrations and times, respectively, for all metals. LC50s for 96 hours for Cu, Cd, Zn, Pb, Ni, Fe, Al, and Mn were 25.2, 13.1, 1189.8, 526.2, 19743.7, 278.9, 3101.9, and 510.2 μg/L, respectively. Metals bioconcentration in S. major increases with exposure to increasing concentrations, and Cd was the most toxic to S. major, followed by Cu, Fe, Mn, Pb, Zn, Al, and Ni (Cd>Cu>Fe>Mn>Pb>Zn>Al>Ni). Comparison of LC50 values for metals for this species with those for other freshwater crustacean reveals that S. major is equally or more sensitive to metals than most other tested crustacean

SEAKEEPING PREDICTION OF DEEP-V HIGH SPEED CATAMARAN USING COMPUTATIONAL FLUID DYNAMICS APPROACH

Seakeeping is the dynamic response of the ship in waves that may affect to passenger’s uncomfortability due to a harsh environmental condition.  Therefore, an extensive assessment of seakeeping performance in the initial step of ship design is necessarily required. The authors here proposed to analyze the seakeeping performance of ‘deep-V’ high speed catamaran using Computational Fluid Dynamics (CFD) approach. Several effects of Froude number (Fr), wave-length

Aggregation And Sedimentation Of Electrosterically Stabilized Iron Oxide Nanoparticle

The bare magnetic iron oxide nanoparticles (MIOPs) and Poly(sodium(4)styrenesulfonate) PSS-coated-MIOPs are prepared in order to study the colloidal stability and the sedimentation kinetic of the nanoparticles. The PSS-coated-MIOPs are more stable than the bare MIOPs due to electrosteric repulsion between particles that resist the aggregation and sedimentation. The zeta potential of MIOPs after coated with PSS is -34.03 mV. The value of zeta potential larger than 30 mV indicates that the samples have good colloidal stability. The bare MIOPs and PSS-coated-MIOPs are diluted into five different concentrations (10 ppm - 500 ppm). The bare MIOPs are aggregated and sediment faster than PSS-coated-MIOPs. The aggregation and sedimentation is enhanced when the external magnetic source exerted on bare MIOPs and PSS-coated-MIOPs because it experienced magnetophoresis force. The highest concentration of bare MIOPs which is 500 ppm settle first because more concentrated MIOPs have higher collision frequency thus it aggregated and sediment faster. The gravitational force is depends on the size of particles and the large aggregates more responsive towards the magnet. The PSS-coated-MIOPs only has little sediment at the bottom of the sample. The hydrodynamic sizes of samples are measured using dynamic light scattering (DLS). From DLS measurement, PSS-coated-MIOPs have smaller hydrodynamic size than bare MIOPs for all range of concentrations. The hydrodynamic size of PSS-coated-MIOPs is almost constant whereas the hydrodynamic size of bare MIOPs is fluctuated throughout the measurement time for all range of concentration due to formation of large aggregates and small aggregates

Fire risk assessment of old low-cost residential apartment building ; a perspectives review

This study is to analyse the fire risk assessment for the old low cost high residential building in Malaysia. This research is conducted through reviewing the methods of study, scoping fire risk important aspects, and analysing the information in order to mitigate a way to do fire risk assessments in old low-cost residential apartment in Malaysia supported by the Uniform Building By-Law (UBBL 1984). As an outcome, this paper will be outlining future expectation of elements to be conducted on improving fire safety in old low-cost high rise residential building and updating its characteristics by imparting more efficient fire risk assessment method for a better safety of fire protection in old low-cost high rise residential building in Malaysia