Physical Sciences and Mathematics Commons^™

Sistem Maklumat Pembayaran Zakat, Wijee Masrina

Student Works (2000-2009)

Sistem maklumat bagi pembayaran zakat atau akronimnya e-Zakat merupakan satu aplikasi berasaskan web yang dibina untuk menyediakan satu perkhidmatan bagi pengguna mengetahui jumlah bayaran zakat tertentu yang wajib dibayar oleh mereka dengan cara yang mudah dan pantas melalui perkembangan teknologi maklumat. Selain daripada itu, sistem ini juga dilengkapi dengan informasi mengenai zakat yang dipetik berlandaskan Al-Quran. Sunnah Nabi dan pendapat para ulamak. Sistem ini terbahagi kepada dua modul utama iaitu modul pengguna dan modul pentadbiran. Modul pengguna akan menyed.iakan kemudaban bagi peogiraan kelapan-lapan jenis zakat Selain itu, modul ini juga menyediakan beberapa fungsi lain seperti pertanyaan dan rujukan. Modul pentadbir …

Pangkalan Data Perintah-Perintah Am Dan Pekeliling Kementerian Pendidikan, Kok Foong Chen

Student Works (2000-2009)

Ministry of Education Malaysia's Web Based Circular Information System (MOE's WBCIS) ajms to enhance the level of searching and_ retrieval of government docunents by providing an effective and faster way of locating circulars on education. In an effort to achieve Vision 2020~ MOE's WBCIS takes the initiative from the implementation of to upgrade the quality of document delivery in and efficient and effective manner. The objectives of MO E's WBCIS, among others, are to help the MOE staffs to manage the circular system easily and fast The system provides an interactive and effective search engine that enables users to search …

Intrusion Detection Using Artificial Neural Network, Sze Kai Gan

Student Works (2000-2009)

According to this thesis title - Intrusion Detection Using Artificial Neural Network is whereby a neural network technology must be built inside the Intrusion Detection System (IDS). IDS is one of the security techniques, which is being used currently. It can be said that, Intrusion Detection System is a companion of the firewall, (of is beyond the firewall). The firewall is analog to the locker in (our houses to lock the windows and doors) to prevent intruders' break-in. Therefore, the IDS is a burglar alarm system to alert the user when an intruder successfully get through the firewall. In addition, …

Sistem Tempahan Tiket Formula 1, Alias Zul-Azry

Student Works (2000-2009)

Dunia hari ini sudah memasuki millenium baru. Suasana dunia masa kini juga telah bernbah. Manusia kini sudah melangkah ke era teknologi maklumat yang merupakan tunjang kepada kemajuan sesebuah negara. Salah satu kcsan daripada perkembangan pesat teknologi maklumat ialah internet Pada masa kini, internet telah memainkan peranan yang penting di dalam kehidupan seharian manusia terutamanya di dalam dunia perniagaan. Maka lahirlah Perdagangan Elektronik yang merupakan satu dimensi baru dalam dunia peniagaan. Menyedari perkembangan Perdagangan Elektronik semakin pesat maka kita baruslah menggunakan dengan sebaiknya peluang yang ditawarkan oleh Perdagangan Elektronik. Dengan itu, Sistem Tempahan Tiket Formula 1 telah dicadangkan. Sistem ini mempakan …

On Stochastic Inequalities And Comparisons Of Reliability Measures For Weighted Distributions, Broderick O. Oluyede, E. Olusegun George

Mathematical Sciences: Faculty Publications

Inequalities, relations and stochastic orderings, as well as useful ageing notions for weighted distributions are established. Also presented are preservation and stability results and comparisons for weighted and length-biased distributions. Relations for length-biased and equilibrium distributions as examples of weighted distributions are also presented.

Determination Of The Micropore Structures Of Activated Carbons By Adsorption Of Various Dyestuffs From Aqueous Solution, Fuat Güzel, İlhan Uzun

Turkish Journal of Chemistry

In this study, some activated carbons prepared from sour cherry pits under various conditions were investigated. For comparison purposes, the commercial activated carbons Merck-2514 and Merck-2184 were used. The nitrogen adsorption isotherms at 77 K were used as reference for comparison, while p-nitrophenol, methylene blue, orange-II and victoria blue adsorptions were determined from aqueous solution at 298 K. It was clear from the specific surface area values obtained that the best activated carbon was obtained by activation for 4 hours following the chemical activation. Its adsorption properties are closer to the levels of the Merck commercial carbons. It was concluded …

Synthesis Of Novel Acidic Mono Azo Dyes And An Investigation Of Their Use In The Textile Industry, Emel Yildiz, Hami̇t Boztepe

Turkish Journal of Chemistry

1,2-hydroxo phenyl azo,8-amino naphthalene, 3,6-disulfonic acid Mono sodium salt (HFANS) and its metal complex with chromium (III) salt (ligand metal ratio 1:1) were synthesized as H-acid derivatives. Having an acidic character these dyes are used for dyeing polyamide and protein fibers. Their properties such as dyeing, wash fastness and color classification were investigated according to international standard methods.

Trypsin-Catalyzed Peptide Synthesis In Acetonitrile With Low Water Content, Yeşi̇m Yeşi̇loğlu, Ayten Sağiroğlu

Turkish Journal of Chemistry

Trypsin was immobilized to alumina by adsorption from its aqueous solutions. The activity of trypsin was increased by immobilization for peptide synthesis. With these immobilized enzymes Bz-Arg-Leu-NH_{2} dipeptide synthesis was carried out. Iso amylalcohol, tetrahydrofuran and acetonitrile were used as solvents giving the highest yield in the peptide formation reaction. The yield of the peptide was strongly dependent on water content in the reaction medium. The stability of alumina-immobilized trypsin is described.

Synthesis And Protection Of Some Amidines, Kadi̇r Dabak

Turkish Journal of Chemistry

A series of benzamidine derivatives were synthesized from substituted benzonitrile compounds and protected with the tert-butoxycarbonyl group.

Electrochemical Investigation Of 4'-Haloderivatives Of N,N-Dimethyl-4-Aminoazobenzene, Mustafa Uçar, Ali̇ Osman Solak, M. Levent Aksu, Mehmet Toy

Turkish Journal of Chemistry

In this study, the electrochemical behaviour of 4' -halogene-N,N-dimethyl-4-aminoazobenzene derivatives were investigated using various polarographic and voltammetric methods. The peak potentials of these derivatives were observed to shift towards negative values with increase in pH. The standard rate constants were determined with (Laviron technique) or without (Nicholson and Klingler-Kochi techniques) taking the adsorption phenomena into account. The diffusion coefficients were calculated from the cyclic voltammetric data using the method developed by Garrido. The amount of adsorbed substances (surface excess values) and transfer coefficients for the electron transfer were also determined. These compounds can be quantitatively determined between 1 x 10^{-5} …

Determination Of Linear Alkylbenzene Sulphonates And Their Biodegradation Intermediates By Isocratic Rp-Hplc, Mehmet Akyüz, David J. Roberts

Turkish Journal of Chemistry

An HPLC method was developed to determine linear alkylbenzene sulphonates (LASs) and their biotransformation products sulphophenyl carboxylates by isocratic chromatography using two C_{18} columns in series. Solid-phase extraction with a (C_{18}) cartridge was employed to isolate LAS from sediment and sewage effluent samples. Sodium perchlorate and ammonium perchlorate were used as ion pair agents. The recovery of the compounds was 94% \pm 2 and 98% \pm 2 respectively for sediment and sewage effluent. It was demonstrated that it is possible to separate LAS compounds and their isomers and homologues using this system.

Molecular Dynamics Simulation Of Phase Transitions In Binary Lj Clusters, Adem Teki̇n, Mi̇ne Yurtsever

Turkish Journal of Chemistry

The structures of small clusters are studied extensively by classical simulation methods because of their interesting thermodynamic behavior. In this work, we study the thermodynamic properties of binary mixtures of noble gas atoms. Interatomic interactions are defined by 6-12 Lennard-Jones (LJ) potential. Starting from the global minimum of the potential energy surfaces, the systems are heated by increasing the total energy until melting occurs. The melting is observed by monitoring the Lindemann factor. The effects of the relative sizes of A and B atoms and the interaction strength of A-A, A-B, and B-B on the melting temperature of clusters containing …

The Use Of Chloranilic Acid For The Spectrophotometric Determination Of Three Antihistamines, Kanakapura Basavaiah, V. S. Charan

Turkish Journal of Chemistry

Cyproheptadine hydrochloride (CPH), methdilazine hydrochloride (MDH) and promethazine theoclate (PMT) were determined in their pure state and in pharmaceutical formulations by a simple spectrophotometric method. The determination was based on the formation of a charge-transfer complex between chloranilic acid as a \pi-acceptor and the studied drugs as n-donors in an acetonitrile-chloroform mixture. The spectra, various experimental parameters, the stoichiometry and the stability of the complexes formed were investigated. The complexes formed were found to absorb at 520 nm. Beer's law is obeyed in the concentration ranges 25-125, 20-100 and 25-150 \mu g ml^{-1}, for CPH, MDH and PMT respectively. The …

Determination Of Calcium, Magnesium And Aluminium In Magmatic Rocks After Ultrasonic Leaching By Flame Aas, M. Hi̇kmet Özkan, Mehmet Akçay

Turkish Journal of Chemistry

A method of ultrasonic leaching has been developed for the destructive analysis of magmatic rock samples^1. This method was applied to determine three new elements, Ca, Mg and Al, in magmatic rock samples. The accuracy of the ultrasonic leaching method (C_{ULM}) was tested using standard reference materials (SRMs) and the recovery ratio as K_1 = C_{ULM}/C_{SRM} was defined. Another recovery ratio, K_2, was also defined from the results of the conventional dissolution method (CDM), that is K_2 = C_{ULM}/C_{CDM}. The accuracy and precision of the method are comparable with those of conventional methods. The following recovery ratios were obtained for …

Investigating Nitrogen Pollution In The Canoochee River, Evans County, Georgia, Chandra Marie Pitt Brown

College of Graduate Studies: Theses & Dissertations (1964–2006)

No abstract provided.

A Power Scheduling Software Package For Planetary Habitats, Gary W. Huband

College of Graduate Studies: Theses & Dissertations (1964–2006)

Mankind has established a permanent presence in space with the International Space Station. The next step is building habitats on the Moon or Mars. However, these habitats will have to be nearly self-sustaining because replenishment from Earth will be costly. Power for life support and other electrical devices will be limited and must be monitored and allocated. This thesis develops the framework for power scheduling software to perform these tasks.

The software includes a graphical user interface (GUI) to allow the user to interact with the power schedule, a database and server, and a simulation for the effects of device …

Impact Of Land Use Change On Hydroelectric Power Generation In Cameron Highlands, Fook Kun Choy

Student Works (2000-2009)

This study assesses the impact of land use changes on annual energy production of the hydro stations of Cameron Highlands Hydroelectric Scheme. Land use affects sediment load and streamflow of Sungai Telom and Sungai Bertam, which influences power generation and energy production of the several hydro stations in Cameron Highlands. Data of rainfall, streamflow, suspended sediment load, land use and energy output for the period 1964 to 1998 were collected, processed and analysed. Regression analysis, double mass curve method and double ratio technique were used in the assessment. The suspended sediment load and annual runoff of Sungai Telom and Sungai …

Magnetic Resonance Image Search Database System Using Active Shape Modeling Technique, Jayanthy Maniam

Student Works (2000-2009)

Image processing has gained popularity in the medical field as there are many illnesses which requires X-rays, CT scans and Magnetic Resonance (MR) imaging in order to enable accurate diagnosis of diseases. Magnetic Resonance is one of the popularly known imaging techniques used to aid diagnosis. The images collected through Magnetic Resonance (MR) imaging technique require a database for efficient storage, search and retrieval. Medical image indexing, storage, and retrieval based on image content is an important feature of image database systems. A shape based image search system can be used as a diagnostic decision support tool and as a …

A Policy-Based Resource Brokering Environment For Computational Grids, Ahmed Hamdan Al-Theneyan

Computer Science Theses & Dissertations

With the advances in networking infrastructure in general, and the Internet in particular, we can build grid environments that allow users to utilize a diverse set of distributed and heterogeneous resources. Since the focus of such environments is the efficient usage of the underlying resources, a critical component is the resource brokering environment that mediates the discovery, access and usage of these resources. With the consumer's constraints, provider's rules, distributed heterogeneous resources and the large number of scheduling choices, the resource brokering environment needs to decide where to place the user's jobs and when to start their execution in a …

Geometric Integrators For Hamiltonian Pdes, Dmitry Karpeev

Computer Science Theses & Dissertations

We consider methods for systematic construction of algorithms for a class of time-dependent PDEs with Hamiltonian structure. These systems possess phase space geometry and constants of the motion that need to be preserved by the integration algorithm to reflect the qualitative features of the system.

We exploit the structure of Hamiltonian systems, in particular their variational formulation based on a Lagrangian, and the dual covariant formulation, to expose the geometric features of the system that have natural analogs when discretized. We emphasize the local space-time approach to the constructions, making them amenable to parallelization and preconditioning using domain decomposition methods, …

An Investigation Into The Concepts And Applicability Of Agent Technologies, Anne White

Theses

The software world is one of great richness and diversity

Even though the concept of software agents date back to the days of AI (Artificial Intelligence) work (1970’s) the word “Agent” is currently in vogue in the computing press and computer science communities.

This thesis presents a review of the ongoing evolution of software agents, places agents in context within today’s software domain, and takes a closer look at the ongoing debate of what really constitutes an '"Agenf\ The numerous dimensions of classification are studied and an opinion of the attributes that an agent should encompass is put forward. Leading …

A Study Of The Influences Of Computer Interfaces And Training Approaches On End User Training Outcomes, Raj Gururajan

Theses: Doctorates and Masters

Effective and efficient training is a key factor in determining the success of end user computing (EUC) in organisations. This study examines the influences of two application interfaces, namely icons and menus, on training outcomes. The training outcomes are measured in terms of effectiveness, efficiency and perceived ease of use. Effectiveness includes the keystrokes used to accomplish tasks, the accuracy of correct keystrokes, backtracks and errors committed. Efficiency includes the time taken to accomplish the given tasks. Perceived ease of use rates the ease of the training environment including training materials, operating system, application software and associated resources provided to …

Applications Of Bismuth(Iii) Compounds In Organic Synthesis, Ram Mohan, Nicholas Leonard, Laura Wieland

Scholarship

No abstract provided.

The Use Of A Genetic Algorithm To Evolve Networks For A Natural Language Processing Task, Alexander E. Dimov '02

Honors Projects

In this project a novel approach was taken for performing a natural language task. The task requires a neural network to predict the grammatical category of the next word in a stream of sentences. There are two main reasons why this task is interesting. In natural language processing, it is sometimes very difficult to determine the grammatical category of a word in a sentence when that word could belong to different grammatical categories depending on the context. For example, the word "run" can either be a noun or a verb in a certain sentence. The ability to correctly determine the …

Dimensionality-Reducing Expansion, Boundary Type Quadrature Formulas, And The Boundary Element Method, Tian-Xiao He

Scholarship

This paper discusses the connection between boundary quadrature formulas constructed by using solutions of partial differential equations and boundary element schemes.

Remote Sensing: A New Tool For Automobile Inspection And Maintenance, Donald H. Stedman

Fuel Efficiency Automobile Test Publications

Federally-mandated emissions testing of automobiles in Colorado has decreased emissions, albeit much less than predicted. Recent breakthroughs in manufacturing low emitting vehicles and in remote sensing of a moving car’s exhaust could enable Colorado to phase out or drastically increase the efficiency of treadmill-style testing centers. Remote sensing technology now allows a piece of equipment small enough to fit in a van to assess the mass of pollutants per gallon of fuel emitted by a passing car. Once an emissions scofflaw is identified, a number of options exist:

· immediate pullover and ticketing by a police officer;

· a “smart …

On-Road Remote Sensing Of Automobile Emissions In The Denver Area: Year 3, Sajal S. Pokharel, Gary A. Bishop, Donald H. Stedman

Fuel Efficiency Automobile Test Publications

No abstract provided.

Bismuth Triflate Catalyzed Allylation Of Acetals: A Simple And Mild Method For Synthesis Of Homoallyl Ethers, Ram Mohan, Laura Wieland, Herbert Zerth

Scholarship

The allylation of acetals using allyltrimethylsilane is efficiently catalyzed by bismuth triflate (1.0 mol%). The reaction proceeds smoothly at room temperature to afford the corresponding homoallyl ether in good yield. The mild reaction conditions, the low toxicity of bismuth salts, and the high catalytic efficiency of the system make this procedure particularly attractive for large-scale synthesis.

A Distributed Discrete-Time Neural Network Architecture For Pattern Allocation And Control, A.T. Chronopoulos, Jagannathan Sarangapani

Computer Science Faculty Research & Creative Works

No abstract provided.

Like A Bridge Over Colored Water: A Mathematical Review Of The Rainbow Bridge: Rainbows In Art, Myth, And Science, John A. Adam

Mathematics & Statistics Faculty Publications

Commenting on a recent book, the author discusses various views of the rainbow: its role in culture, its scientific description, and its mathematical theory.