In recent years, there has been an increasing interest in quadcopter technology
implementation in the real world; for instance in real estate photography, aerial surveying, periodic
forest monitoring, and search/rescue missions. Generally, each quadcopter implementation required
different sensors which are needed to attach and integrate into quadcopter system. However, the most
critical part in almost cases is preparing the quadcopter flight performance and capability to be suited
in any outdoor applications. Because of that reason, this paper has proposed an implementation of
Open-Source Project (OSPs) platform as autonomous Unmanned Aerial Vehicle (UAV) quadcopter
development that can be fitted for any outdoor applications or even in research experimental purposes.
We started out with an explanation about the general approach that has been used in the development
of a quadcopter testbed, and then followed with detail explanations in the OSP platform approach.
The OSP platform is the most popular approach. The main reason is because of their flexibility in both
hardware and software. The basic quadcopter configuration for autonomous flight also presented and
applied. This paper also provided several outdoor experiments results in uncontrolled environment
that have been executed using our developed testbed to evaluate their performance, such as attitude
and altitude stabilization, interference and vibration effect, and trajectory mapping generation.
Finally, throughout this project, we realized that the OPSs quadcopter platform has offered almost
complete frameworks in the development of quadcopter for any outdoor applications or even as a
research testbed system.
Numerical studies are conducted on turbulent incompressible flow over 2D backwardfacing
step in order to investigate the performance of three different turbulence models (standard k-e,
realizable k-e and SST k-ω) in predicting the region of separation and reattachment behind the edge
of the step. Current solutions of Reynolds number (Re= 13200) and expansion ratio (H: H2=1:3) are
compared with experimental measurements. Among the turbulence models, SST k-ω and standard k-e exhibited good agreement with the experimental results.
In this paper, Reynolds average Navier stokes models simulation was computed
with standard k-є, realizable k-є and SST k-w.The three models were proposed to forecast the
turbulence flow behaviour inside a rectangular channel with two baffle plates. The geometry
and the grid were generated using commercial CFD software fluent. The flow behaviours of
three models were characterized based on positions of the entrance to the first baffle,
positions between first and second baffle and lastly the second baffle. At the three different
positions the three models studied have demonstrate differences in the velocity profiles and
separation range. Comparison with previous literatures shows applicability of these three
models to produce velocity profile characteristics and separation behaviours. Even though
some of the models have shown slight deviation from the experimental results but in general
the three models were considered to be in close agreement with most published literatures.
This paper studied the heat transfer in an asphalt solar collector with small scale geometry.
Solar energy reaches the earth and consequently increases the temperature of the ground, which then
leads to the increase of the temperature of the air. Water circulates through a series of pipes embedded
in the asphalt pavement for the extraction of solar energy. The radiation in this study was produced
from the top asphalt pavement. In this study, the temperature of the asphalt pavement decreased when
solar energy was collected from the circulating water. This reduces the heat island effect in the city and
decreases the power consumption for air conditioning. The temperature is distributed between the
asphalt pavement and the inner pipes. Increase of the flow rate has a great influence on the energy
collection by reducing the temperature of the asphalt pavement. The result of this test was obtained
using a small-scale asphalt pavement, which showed a high amount of heat collected.
The dynamics of a liquid droplet in a low gravitational field is examined using a finite
difference/front tracking projection-based numerical technique. The unsteady, incompressible,
viscous, immiscible multi-fluid, two-dimensional Navier-Stokes equations for both the liquid and the
gas are solved using the single-fluid model. The droplet deformation and the gas wake generation and
oscillations phenomena is studied.
The construction industry is one of the major sectors in Malaysia. Apart from providing
facilities, services and goods it also offers employment opportunities to local and
foreign workers. In fact, the construction workers are exposed to high risk of noises
being generated from various sources including excavators, bulldozers, concrete mixer
and piling machines. Previous studies indicated that the piling and concrete work were
recorded as the main source that contributed to the highest level of noise among
others. Therefore, the aim of this study is to obtain the level of noise exposure during
piling process and to determine the awareness of workers against noise pollution at
the construction site. Initially, the reading of noise level was obtained at construction
site by using a digital sound level meter (SLM) and noise exposure to the workers was
mapped. Readings were taken from four different distances; 5, 10, 15 and 20 meters
from the piling machine. Furthermore, a set of questionnaire was also distributed to
assess the knowledge of regarding noise pollution at the construction site. The result
showed that the mean noise level at 5 meters distance was more than 90 dB, which
exceeded the recommended level. Although the level of awareness of regarding the
effect of noise pollution is satisfactory but majority of workers (90%) still did not wear
ear muffs during working periods. Therefore, the safety module guidelines related to
noise pollution controls should be implemented to provide a safe working environment
and prevent initial occupational hearing loss.
Malaysia is one of the developing countries that are facing an increase population
with an increasing and significant generation of waste. Environmental problems may
arise when the solid waste management is improper. The rate of generation is
increasing and the composition is also changing as the nation becomes more
urbanized and industrialized. The objective of this study is to present the data of
municipal solid waste (MSW) generated in Taman Universiti, Skudai, Johor Bahru,
Malaysia. The composition of MSW was studied by segregating it into different
components such as food waste, paper, glass, plastics, metal and tin aluminums. It
was observed that Taman Universiti area produced around 40% plastics waste which
was the highest component compared to other waste, followed by food waste and
papers with 38.2% and 21% respectively. Meanwhile, food waste was recorded the
highest moisture content with 38.2% while glass had the lowest moisture content
with 0.4%. The reliable estimate of MSW generated is important for proper waste
management planning. These data could enhance in implementation of waste
management system in that area.
The Climatic performance of courtyard residential buildings needs to be
investigated if the assertion that courtyard is a microclimate modifier is to be
accepted. Therefore, this study seeks to examine the microclimatic performance
of two existing courtyard residential buildings with similar characteristics in
Kafanchan-Kaduna Nigeria, -the fully enclosed courtyard residential building and
the semi-enclosed courtyard residential building. The purpose of this research is
to investigate their microclimatic performances in other to establish the best
courtyard house. This study uses measurement to achieve its aim. The tool
employed for data collection is the Hobo Weather Data Loggers (HWDL). Three
HWDL were used to collect data in the two case-study, and the third one was
placed in the outside area as a benchmark. Only air temperature and relative
humidity were measured. This study revealed a tangible difference in the
microclimatic performance of the two case-study. The fully enclosed courtyard
residential building is seen to have air temperature difference of 1 oC to 3 oC, and
the relative humidity difference of 4 % to 8 %. In conclusion, the fully enclosed
courtyard house demonstrated a more favorable microclimatic performance than
the semi-enclosed, and further simulation studies towards its optimization are
required.
A Shipyard in Malaysia has been trying to change, but facing employee Resistance to
Change (RTC). Resistance is attributed to the poor coupling of tasks to its technical
core, creating bad habits leading to thoughtlessness and neglect. Lewin’s Field Theory
and Festinger’s Theory of Cognitive Dissonance was used to understand and identify
the underlying behaviour of the employees. Lean principles were used as an in-depth
intervention to understand how context provoked or shaped reactions. A Dual
Imperative Action Research (AR) with the author as a participant researcher was
conducted not only to create knowledge but also, change. To position the Shipyard in
its historical context, face-to-face interview was conducted with managers to get thick
description of the RTC and archaic documentations was reviewed. A survey using
tested questionnaire was conducted to gauge the employees RTC disposition.
Resistance is due to incoherency of a person’s belief to establish standards, giving rise
to cognitive dissonance. These dissonances hidden as non-conscious behaviour, social
habits or norms, lead the organisation to deterioration. Lean intervention reduce
dissonance, creating psychological flow in the workforce and momentum for change.
Thereby, the Shipyard managed to recover the delay of a ship undergoing a ship-life
extension program and avoided liquidated damages amounting to RM63 million. The
Shipyard also managed to reduce its average delay for ship repair from 17 to 6 months.
The knowledge on how the researcher can gain utility from RTC and mediate through
the application of Lean principles would be of considerable benefit to ‘change
managers’.
Autism is a neurological disorder that affects the growth of mind, causing problematic measure in communicating, interacting, and social behaviour. Outstanding educational practices and rapid intermediation leads to vast improvement, as there is no remedy for autism. The main impairment of children with autism is their difficulty in social interaction. The main research is to recognize the effective learning approach in educating social interaction skills to children with autism using mobile technology. This paper presents the result of a engagement session of video modules to support social interaction training for children with autism. The modules are designed to be a part of a mobile application that will be developed based on the three basic interaction skills; Introducing Yourself, Emotions and Gestures. Engagement session was conducted where students with medium functioning Autism Spectrum Disorder (ASD), aged 7-18 years watched the modules for social competence training during a single session. Outcome measures included an observation study of the student’s reactions towards the modules by two observers. The observers graded each student’s reactions using a ‘Social Skill Rubric’ that has five specific criteria to be scored. Results showed excellent acceptance of modules as well as strong preferences amongst them. The students revealed a range of different reactions towards the modules. However, mainly the modules do appeared to be effective in educating social interaction to children with autism as they are able to focus and enjoy in the learning process.
– This study was performed to measure the gender equality involvement in Technical and
Vocational Education and Training (TVET) Program in one of the Malaysia Technical University
Network (MTUN). The focuses of this study are general perspective in gender equality, men and
women position in society, and sources of information about TVET. 200 respondents involving
students and lecturers from various field of TVET programs involved in this study. Questionnaire was
applied to gather the data information and descriptive analysis represent the findings. Result showed
that most respondents strongly agree with men helping in the household were women, they are also
aware about the national policies on gender equality in Malaysia, and for last section of survey,
respondents agree that they choose studying in TVET program because the better job opportunities.
In summary, there is no gender issue in Malaysia’s policy, position of work and opportunities in
further education especially in TVET programs.
The advancement of technology has allowed a variety of tools for employees and
managers, or knowledge workers, to choose as communication tools, especially for
managing project teams. Instead of communicating and updating project progress
through emails and short messaging system, social messaging (SM) applications, such
as WhatsAppTM, are the current daily choice among them. The over-utilisation of the
SM applications has given an opportunity for a research on project knowledge
retention within project team, since it becomes an addiction to create new groups each
time a new project team is formed. It is believed that project knowledge resides within
these virtual groups, and this paper looks into how project knowledge is managed by
analysing the communication patterns against a measurement metrics based on
personal knowledge management (PKM) theory called GUSC Model. The
communication patterns found existed in the SM application are qualitatively
identified and mapped against the PKM processes within, with weighted score
assigned to each process to quantitatively measure the overall project knowledge
management participation. The differences among the organisational communication
levels, namely upper and lower level communication levels, are analysed and the final
result of participation expectation on member of SM application groups is presented.
The outcome of this research recommends the future intervention on SM application
usage and the application of knowledge management concept in current
communication tool.
Dengue fever is an endemic disease in many tropical and subtropical regions. In
Malaysia, it is the leading public health challenge despite the extensive intervention
programs by the related authorities. Distribution of dengue cases in Malaysia varies
according to states and districts where cases are more distinct in urban and suburban
areas. Preparedness strategies of dengue cases could be more successful with some
comprehensive and technical analysis on disease incidences. Hence, the present study
analyses dengue cases using mathematical modelling in the state of Penang, one of the
more urbanised state. In particular, two time series models are fitted to the dengue
data from the region in order to identify the mathematical model that best describe
the data. Results show that both proposed models are able to represent the cases
rather well; however numerical inspection revealed that Double Exponential
Smoothing method is the better choice. Subsequently, the identified model is used to
make forecasting on the number of expected cases. Results show that dengue cases in
Penang are expected to increase gradually.
The Multi Criteria Decision Making (MCDM) delivers strong decision making in areas where
selection of best alternative is highly complex. This paper reviews and explain the main condensations
of MCDM models and practices in detail. The purpose is explained and identify various application
and the approaches and to suggests different MCDM models for different decision makling issues and
how to select the best alternatives. This paper also examines the DEMATEL model and problems in
DEMATEL for decision making and how DEMATEL have been improved to overcome the problems.
The MCDM methods have helped to choose the best alternatives where that they are many criteria are
present, the best can be selected and analyzed the different scope for the criteria, weights for the criteria
and the choose the ideal ones using any multi criteria decision making methods.
–Imam Ahmad Ibn Hanbal is very famous in traditions collector of Prophet Muhammad, but
there are statements related to characteristics of Allah that stated by him. Therefore, it is very important
to understand Imam Ahmad Ibn Hanbal’s thought in characteristics of Allah. It is history study that
explains a short biography of Imam Ahmad Ibn Hanbal and his statements about characteristics of
Allah. Based on the literature study that Imam Ahmad Ibn Hanbal believes the characteristics of Allah
are based on the Koran and collection of traditions of Prophet Muhammad. The characteristics of Allah
believed by Imam Ahmad Ibn Hanbal are suitable to Ahli Sunnah wal Jamaah.
This paper presents the speed control of DC series motor by using field control method,
armature control method and voltage control method. In field control method, a
variable resistance is connected in parallel with series field winding to shunt some
portion of the line current from the series field winding. Thus weakening the field and
increasing the speed. While in armature control method, a variable resistance is
directly connected in series with the supply to reduce the voltage available across the
armature and hence the speed falls. For voltage control method, the motor is supplying
with a variable voltage supply to change the speed of the motor. A laboratory
experiment is designed to control the speed of dc series motor where a rheostat
(variable resistor) is used to vary the field and armature resistance of the motor. The
applied voltage is kept constant for both field control method and armature control
method experiment. The result of the experiment shows at a constant supplied
voltage, the speed of the motor increased when the flux and armature resistance
decreased. Meanwhile, the speed of the motor increased when the terminal voltage
increased. This study concluded that the speed of a series DC motor can be controlled
by varying the field, armature and supplied voltage.
This paper reviews the conceptualization and relationship among work-family conflict,
burnout, social support and turnover intention using Job Demand Resources (JD-R) model. From the
theoretical framework of JD-R model, there is a relationship between job demand and resources that
gives impact to organization outcome. In addition, empirical evidence also shows that a relationship
exists between the above variables. Organization should address proactively how job demand and
resources influence each other that lead to organization outcome. Comprehensive understanding
regarding the above matter gives opportunity for organizations to take reasonable action to ensure
employees well-being and give benefit to the organizations themselves.
A method based on Computational Fluids Dynamics (CFD) was used to analyse the flow
behaviour in the Biodiesel reactor with 6-blade at 45° pitch blade turbines. The study, which was based
on the turbulent flow, had been associated with three sizes of the blades installed in the reactor by using
the standard k-ε turbulence model. The study also included the pitch blade turbines that were installed
at three clearances from the bottom in the reactor by using the standard k-ε turbulence model. The
results showed that the flow behaviours differed for the three various locations, which were installed at
C=T/4, C=T/2, and C=3T/4 for D=T/3. The results also showed that the flow behaviour had been
different for the three impeller diameters installed at C=T/4. Besides, good quantitative agreement for
velocity distribution was obtained. Good velocity distribution in the reactor was produced by D=T/3.
Moreover, a comparison between the three impeller diameters in terms of velocity distribution
suggested that the discharge flow from the smaller impeller had stronger axial flow during the mixing
process.
Management is consistently facing fast-flowing and lots of changes in business, including in the inventory management. Especially for fast-moving inventories, the correct stocking, controlling, checking and safety stock calculation is highly needed to have an exquisite inventory management and to reduce the possibility of running out of inventory which leads to unavailability to meet the demand. One of the ways to overcome this is by doing an excellent and appropriate forecasting. Therefore, the objective of this concept paper is to analyse and recommend tools to improve inventory management using the appropriate time-series forecasting method. The firm studied in this study is serving its employees as customers that demand the routine items including stationeries and other routine products to support their job as auditors and consultants for its client. However, there are occasions when there is out-of-stock situation for fast-moving items, especially in the peak season period. Furthermore, the firm is only applying replenishment based on the used inventories from the previous month. Therefore, this study suggests to eliminate out-of-stock items situation by applying precaution initiatives such as time-series forecasting. This study is planned to employ 10 time-series forecasting methods such as moving average, exponential smoothing, regression analysis, Holt-Winters analysis, Seasonal analysis and Autoregressive Integrated Moving Average (ARIMA) using Risk Simulator Software. By simulating those methods, the most appropriate method is selected based on the forecasting accuracy measurement.
The new innovative of technology by (GIS) Geographic Information System, (LIS) Land
Information System and (CIS) Cadastral Information System has been playing a leading
role in the development of cadastral and land administration in this study area. The
Customary ways and approach to the land titling and registration in the time past has
resulted in the delay in the processes of obtaining title to the land. Land administration
system in Nigeria includes the processes of land registration, cadastral mapping, land
valuation and land inventory. Most of developing nation particularly Nigeria is faced
with the problem of poor land administration and management. Technology is
paramount in acquiring a proper technological development in land administration.
This study tried to encourage land title registration by providing web technologies that
are faster and suitable with a low rate and minimum delay. The need to develop a
dynamic web for the processes in the land registration arises from the dynamic
relationship to the land of the people. The delay in time and process of land registration
couple with the exploitation in land related activities has called for the urgent
intervention of all the stakeholders in land administration. PHP programming language
was used as a server side scripting languages together with MyAdmin SQL, a website
was developed for the processes involved in the land registration having examined the
fastest way to solve the problem. A robust dynamic database that is reliable and easy
to use was also developed which is capable of accommodating several numbers of
applicants. The applicants, monitoring agency and the government have the advantage
of checking all the processes on line without any contact with the officers working on
the certificate.