2,645 research outputs found
Estimation of ship manoeuvring characteristics in the conceptual design stage
In relation to the problems of the maritime safety, the diversification in ship types or the growth in ship sizes has enhanced the significance of manoeuvrability as one of the fundamental performances of ships. Namely it has become very important to predict the ship manoeuvrability at the stage of the initial ship design process. This paper presents a mathematical model for estimating the ship manoeuvring performance to cope with the increasing demands for conceptual design stage evaluation of safety in ship operation. The mathematical model developed can be extended further to be made applicable to various other problems such as low speed manoeuvres, lateral shifting stopping manoeuvres
DEVELOPMENT AND TESTING OF SLOPE STABILITY MONITORING SYSTEM DESIGN
This final report is for the project on slope deformation monitoring system. It
covers the background of the study, some literature reviews and related theories;
methodology used for the project and finally, some discussion throughout the first
semester of the project. The main objective of this project is to design a slope
monitoring system. In order to test the system, a simulated slope movement also has
to be monitored. The site of this project is at the New Academic Building, UTP,
where a slope is to be monitored continuously in real time. Collected data will be
interpret using relevant positioning software and analyze by the system. Alarm will
rise if there's a significant deformation is detected
The Effect Of Anti Roll Bar On The Heavy Vehicle Handling
Vehicle rollover contributes to huge number of tragic accident in recent years. Heavier vehicle have greater tendency to rollover due to their lower roll stiffness and
smaller rollover threshold. While common passenger car could overcome the stability issue by means of speed reduction, having higher points of centre of gravity,
it is impossible for heavier vehicle to seek balance between stability and speed. Simple balance spring device known as anti roll bar has been introduced to passenger
car to enhance the roll stiffness of the suspension system without having to trade off speed and ride comfort. A system with the same goal has been developed for heavier
vehicle. However, the system requires active feedback control system which resulted in the creation of a complex safety control system known as active anti roll system
Molecular Characterisation of Aeromonas Species Isolated from Water and Selected Food Molecular Characterisation of Aeromonas Species Isolated from Water and Selected Food
Three species of Aeromonas; A. hydrophila (60 isolates), A. sobria (34
isolates) and A. caviae(113isolates) were isolated from beef, milk,
freshwater prawns, fish, and water from fishpond. A. hydrophila was
predominant in fish and freshwater prawn, whereas A. caviae was
predominant in the milk and water samples. A. sobria was only found in
freshwater prawn, water and fish samples. The results of the study indicated
that all the five different sources examined were potential vector for
Aeromonas in Malaysia. The percentage of antibiotic resistant among
Aeromonas species was varying according to its origin. A. hydrophila was
more resistant towards ampicillin, bacitracin, carbenicillin and erythromycin.
Most of the A. sobria isolates were resistant to ampicillin, bacitracin,
carbenicillin and streptomycin and A. caviae was resistant to ampicillin,
bacitracin and carbenicillin. The multiple antibiotic resistance (MAR) index of
A. hydrophila, A. sobria and A. caviae ranged between 0.08 to 0.66, 0.16 to
0.66, and 0 (zero) to 0.5, respectively. Hence, the MAR indexing of the
Aeromonas strains showed that more than 90% originated from high were detected in 50 of the 60 A. hydrophila isolates and 35 plasmid profiles
were identified. The plasmid size ranged from 1.4 to 7.0 MDa. Plasmids of
1.4 to 4.1 MDa were detected in 28 of the 34 A. sobria isolates tested, while
six isolates were found to be plasmidless. Their plasmid patterns were
grouped into 18 patterns. Twenty-one plasmid patterns were found from A.
caviae with plasmid sizes ranging from 1.4 to 8.0 MDa. In general,
Aeromonas species under study harboured high number of plasmids. The
plasmid analysis indicated the presence of more than one clone with the
same antibiotic resistance patterns. The data obtained indicated that the
samples sources tested form a reservoir for multiple-resistant and plasmid
containing Aeromonas species in the study area. The RAPO-PCR was
performed to characterise the Aeromonas spp. by using three random
primers (GEN26003, GEN26007, and GEN26010). Among the Aeromonas
spp., A. hydrophila was found to be differentiated by the three primers
distinctively. Primer GEN26003 was the most suitable primer to differentiate
the isolates. The three primers generated polymorph isms in all 207 strains of
Aeromonas species tested, producing bands ranging from 0.24 to 4.5 Kb.
The RAPO profiles revealed a wide variability and no correlation with the
source of isolation. In addition, the RAPO data suggested that the
Aeromonas strains might have originated from diverse sources
Effect of irradiance on growth, physiological processes and yield of melon (Cucumis mela) plants grown in hydroponics
The effect of different irradiance levels on melon (Cucumis mela) cv. Birdie, Charity Ball and Jade Dew grown
in hydroponics was investigated. Plants were exposed to mean daily irradiance levels of 11.4,8.2, 6.1 and 3.0 MJ
m-2 day-1 achieved by using different levels of shade. The dry matteryield appeared to be directly proportional to the
irradiance level received by plants. Stomatal conductance and photosynthetic rate were highest when the plants were
grown under the highest irradiance level. Plants grown under 11.4 MJ m-2aI had the highest fruit fresh weight and
total soluble solids. All cultivars failed to fruit when grown under irradiance of 3.0 MJ m-2aI
The analysis of technical design of special effects in three chosen musical theatres at Istana Budaya / Mohd Kamil Zulkepeli
Musical theatre is a type of theatre that showcases various elements of awe in its performances. Locals productions are non exceptional in this and most of them are now performing in Panggung Sari, Istana Budaya. Feedbacks towards musical theatres in Istana Budaya have becoming more extravagant as each performance portrays lots of magical elements and technical special effects (the designs of technical special effect that are mesmerizing). Research on technical designs (building structures and creation of technical special effect) and technical effects are intended to comprehend and analyze the technicalities of special effects such as building material, energy sources, method of implementation and the impacts of it in musical theatre production particularly in Istana Budaya. The data obtained were based on the three study material ("Aladdin the Musical", "Puteri Gunung Ledang the Musical" and "Cats the Musical") that have been analyzed and interpreted to answer and form the framework of the creation of a special effects design. The reference set of technical (creation of the technical form) that was produced includes the essence of a special technique in the production of a musical theatre in a musical theatrical production that has been used as a reference in the staging of musical theatre at Istana Budaya
Individual taxpayer assessment performance under self- assessment system in Malaysia
The revert from the Official Assessment System (OAS) to the Self-Assessment System (SAS) in Malaysian tax system beginning year 2004 for individual taxpayers, forces taxpayers to perform the primary function of SAS i.e. income assessment task previously carried out by trained tax officers. The primary function is related to determining the correct amount of tax liability and getting the tax return accurate. Hence, the successful implementation of SAS relies heavily on the acceptance and cooperation of taxpayers. This study serves to evaluate the income assessment performance of taxpayers and its influential factors. Using Libby’s (1995) Antecedents and Consequences of Knowledge model as the underlying framework, this study examines the effect of factors such as knowledge in taxation, complexity of tax laws, attitude towards paying tax, probability of being detected, taxpayer assistance, general problem solving ability, experience and demographic variables on taxpayer assessment performance. Due to the nature of variables in this study which intends to elicit self ability and knowledge of a particular individual, a quasi-experimental design were chosen as the data collection method. In order to get the involvement from the real taxpayers, this study employs purposive sampling frame by choosing the UUM KL masters students. The results of this study provide empirical evidence that in order to perform their responsibilities well, taxpayers must possess knowledge in taxation. The relationship of knowledge and performance has been examined in the context of experts such as auditors and tax professionals. This study reveals that this relationship also exist in the context of novice, nevertheless the role of knowledge in the expert and novice model is slightly different due to the different nature of expert and novice knowledge
ANALISIS HASIL MODIFIKASI GLASS IONOMER CEMENT DENGAN PENAMBAHAN HIDROKSIAPATIT DAN SILIKA DARI BAHAN ALAM (DITINJAU DARI GUGUS FUNGSI MENGGUNAKAN FOURIER TRANSFORM INFRARED)
ABSTRAKNama: Mohd Taufiq Kamil HProgram Studi: Kedokteran GigiJudul:Analisis Hasil Modifikasi Glass Ionomer Cement dengan Penambahan Hidroksiapatit dan Silika dari Bahan Alam (Ditinjau dari Gugus Fungsi Menggunakan Fourier Transform Infrared)Glass Ionomer Cement (GIC) merupakan salah satu semen kedokteran gigi yang digunakan sebagai material restorasi gigi. Namun, GIC memiliki keterbatasan seperti rapuh dan rentan terhadap abrasi. Sehingga perlu dimodifikasi untuk meningkatkan sifat fisik dan mekanik, salah satunya dengan menambahkan hidroksiapatit dan silika yang dapat diperoleh dari bahan alam seperti cangkang kerang darah (Anadara granosa) dan pasir laut dari pantai Pasir Putih. Penelitian ini bertujuan untuk mengetahui perubahan gugus senyawa yang terbentuk pada GIC modifikasi dengan penambahan hidroksiapatit dan silika dari bahan alam menggunakan fourier transform infra red (FTIR). Spesimen pada penelitian ini dibagi menjadi tiga kelompok yaitu, GIC kontrol, GIC dengan 5% hidroksiapatit dan GIC dengan 5% silika yang telah mengalami reaksi setting dan disimpan didalam inkubator dengan suhu 37oC selam 24 jam. Kelompok spesimen digerus hingga berbentuk serbuk seberat 1 gram kemudian dianalisis menggunakan FTIR merk Shimadzu Intracer-100. Hasil analisis FTIR menunjukkan adanya perubahan gugus fungsi yang terbentuk pada GIC dengan penamahan 5% hidroksiapatit dan GIC dengan penambahan 5% silika. Glass Ionomer Cement (GIC) dengan penambahan 5% hidroksiapatit dan 5% silika terjadi peningkatan intensitas gugus hidroksil (O-H) yang signifikan sebesar 74.82% dan 72.25%. Pada GIC dengan penambahan 5% hidroksiapatit terdapat gugus kalsium oksida (Ca-O) dengan intensitas paling tinggi dan terdapat dua gugus fosfat (P-O) yang terbentuk. Glass Ionomer Cement (GIC) dengan penambahan 5% silika terdapat enam gugus siloksan (Si-O-Si) yang terbentuk. Kesimpulan penelitian ini adalah GIC dengan penambahan 5% hidroksiapatit terbentuk gugus P-O yang dominan sedangkan pada GIC dengan penambahan 5% silika terbentuk gugus Si-O-Si yang dominan. Kata kunci : Glass ionomer cement, hidroksiapatit, silika, gugus fungsi, FTI
Overall Job Satisfaction Among Managerial Employees in the Public Services Department, Malaysia
The major concern of this study was to determine whether overall
job satisfaction can be better determined when placed within the context
of the individual's total life situation. The main objective of the study
was to examine factors that contribute toward job satisfaction among
managerial employees. Specifically, it undertook to determine whether
selected individual attributes, selected job-related variables, and selected
non-job related variables are potential determinants of overall
job satisfaction.
The sample Size of 160 respondents was derived from
215 accessible managerial-employees of the Public Services Department
(PSD), Malaysia
Antagonistic Activities of Epiphytic Bacteria on Black Pod Disease of Cocoa
A study was conducted to determine the antagonistic activity of
epiphytic bacteria isolated from cocoa pod surface on
Phytophthora palmivora (Butler) Butler, the causal agent of black
pod disease of cocoa. Out of 233 isolates of epiphytic bacteria
obtained from non symptomatic and diseased cocoa pods, only
were found to have antagonistic activities against the fungal
pathogen when screened by the dual-culture method. Three
isolates, (LKM/B/1, LKM/B/35, LKM/B/76c) were identified as
Pseudomonas putida Biotype A, 2 isolates (LKM/B/5 and
LKM/B/62b) were identified as Pseudomonas aeruginosa and
one isolate each was identified as Pseudomonas spinosa
(LKM/B/2), Burkholderia glidioli (LKM/B/4) and Burkholderia sp
(LKM/B/6). Identification of the epiphytic bacteria was done using
the BIOLOG® Identification System. Percentage inhibition of the
radial growth (PIRG) of P. palmivora by the epiphytic bacteria
ranged from 66.0% to 82.1%. All isolates of epiphytic bacteria
showed optimum antagonistic activities at 300 C. pH has no
influence on the antagonistic activities of the epiphytic bacteria.
Detached pod studies showed that pods treated with the
epiphytic bacteria retarded the growth of black pod lesion up to
12 days after inoculation.
Isolate Burkholderia glidioli (LKM/B/4), Pseudomonas aeruginosa
(LKM/B/5) and Pseudomonas putida Biotype A (LKM/B/76c)
produced volatile substances that affect the growth of P.
palmivora, while isolates LKM/B/1 and LKM/B/35 of
Pseudomonas putida Biotype A and isolate LKM/B62b of
Pseudomonas aeruginosa did not show the production of volatile
substances. Isolate LKM/B/76c also produced diffusible
metabolites that could significantly inhibit the growth of P.
palmivora compared to other epiphytic bacteria especially isolate
LKM/B/35 which showed good antagonistic through dual culture
method.
Microscopic observations of P. palmivora at the periphery of the
inhibition zone indicated that all isolates of epiphytic bacteria
inhibited P. palmivora by the process of cell wall degradation and
growth retardation
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