Physical Sciences and Mathematics Commons^™

Interactive Mathematics Learning System (Smartmath), Regina Tay Regina Tay

Student Works (2000-2009)

Interactive Mathematics Learning System (Smartmath) is a Web-based Multimedia Learning-teaching system for lower primary school level. Primary school students, teachers, and parents are the target users of this system. It can be used as a teaching tool or as a self-learning program. The strength of Smartmath is that it provides lessons to educate users about basic mathematics operations according to users age group. Lessons are provided for children aged 7 and 8 which can also be used by preschool children. There are interactive quizzes that test the student's understanding after each lesson. Games based on mathematic operations and numbers are …

Family Information System (Familyis), Seok Luan Ang

Student Works (2000-2009)

Computer information system and computer applications are very important to all the organizations. Thus the government is introducing the MSC or Multimedia Super Corridor. It is meant to develop Malaysia into a regional and international technology and telecommunications hub in 2020. The MSC will propel the transfer of technology and become the test bed for R&D in high-tech industries. Thus, Family Information System will be an example of what the function of family management in Smart Family will be like. The family management function is one most important feature in this system. This report is about the development of Family …

Electronic Document Delivery System (Edds), Eng Seong Ng

Student Works (2000-2009)

The Electronic Document Delivery System (EDDS) is a web-based system that promises a quick and efficient way to access information for University of Malaya. The entire request can be made electronically. and the materials shall be sent to the requester electronically. The service is also available 24 hours per day throughout the year because it is available online. The EDDS will cater the request for an article of a journal or a chapter of a book, which is not found in the University of Malaya Library collections. The objectives of the EDDS are to create an automated document delivery system …

Sistem Belajar Dan Menulis Jawi, Md. Salim Salhafiza

Student Works (2000-2009)

Sistem Belajar Mengeja dan Menulis Jawi ini adalah sebuah sistem multimedia pembelajaran Jawi bagi kanak-kanak di dalam lingkungan umur 7 tahun hingga 9 tahun. Tujuan utama ia dibangunkan adalah untuk menyediakan alternatif kepada kanak-kanak untuk mempelajari jawi dalam persekitaran yang menggembirakan. Ini diharapkan dapat menarik minat kanak-kanak mempelajari Jawi serta seterusnya mengurangkan bilangan kanak-kanak yang ‘buta Jawi’. Sistem ini akana memudahkan kanak-kanak mempelajari cara-cara mengeja dan menulis Jawi menggunakan pendekatan kaedah grafik dan audio serta animasi menarik. Sistem ini akan dibangunkan menggunakan model GUIDE dengan pendekatan Interaksi Komputer Manusia (Human Computer Interaction). Perisian utama yang digunakan membangunkan sistem adalah Macromedia …

Tourist Information System, Chi Kee Wong

Student Works (2000-2009)

The Objective of WXES 3181 is to make a report and proposal of the thesis project. This is part of the thesis whereas the second half will be focusing on the implementation of project done in WXES 318. This report will therefore, provides an evaluation of the thesis topic, literature review as well as the system analysis and system design of this entire project. According to this thesis title- Tourist Information System is whereby a web based information system will be used by tourists to hel them gain a deeper understanding towards the interest place in Malaysia. Pontential tourists, especially …

Thermogravimetric Studies Of Pmma On Silica, Bing Zhang, Frank D. Blum

Chemistry Faculty Research & Creative Works

The thermal degradation of poly(methyl methacrylate) (PMMA) has been studied extensively. It is well accepted that the degradation process is a radical chain reaction involving initiation, depropagation, transfer, and termination reactions. In the degradation process, the factors having observable effects on the decomposition behavior include molecular mass, polydispersity, tacticity, and sample dimensions. The effects of tacticity on the degradation behavior of PMMA were investigated by Kashiwagi et al., Jellinek et al. And Chiamtore et al. The results indicated that both isotactic and syndiotactic PMMA have similar decomposition pathways and activation energies. Isotactic PMMA will decompose at a slightly lower temperature …

Effect Of Polymer-Surface Mobility On Adhesion In Poly(Methyl Methacrylate)-Tape System, Bhavesh C. Gandhi, Frank D. Blum, Lokeswarappa R. Dharani

Chemistry Faculty Research & Creative Works

The interaction between two polymer layers, especially adhesion between them, plays an important role in polymer processing and other applications. Detailed knowledge of the molecular structure and dynamics of polymer interfaces, and how they relate to macroscopic mechanical properties, should help designers construct more functional systems. Unfortunately, there have been few studies where both molecular and macroscopic studies have been performed on similar systems. In previous studies from our group, we have probed the dynamics of poly(methyl acrylate) (PMA) and thermal behavior of poly(methyl methacrylate) (PMMA) on silica. These studies helped us paint a picture for strongly bound molecules on …

Sistem Pengenalan Huruf-Huruf Jawi Menggunakan Konsep Paparan 7 Segmen, Hanapi Zuriyana

Student Works (2000-2009)

Sistem yang akan saya bangunkan ialah sistem mengenal huruf-huruf jawi. Proses pengenalan adalah berdasarkan konsep paparan 7 segmen. Konsep paparan 7 segmen adalah seperti yang digunakan di dalam kalkulator-kalkulator di mana terdapat 7 garis putus-putus yang disusun secara menegak dan melintang untuk mengeluarkan output-output nombor. Tetapi untuk sistem ini, konsep paparan 7 segmen tersebut digunakan untuk mengeluarkan output-output huruf-huruf jawi sebanyak yang mungkin. Perisian yang akan digunakan untuk membangunkan sistem ini ialah Visual Basic 6.0 dan juga Microsoft Access 2000. Tujuan sistem ini dibangunkan ialah untuk mengenal huruf-huruf jawi mengunakan segmen-segmen dan teknik-teknik yang mudah. Sistem yang akan terhasil nanti …

Doa-Doa, Mohamed Sam Mariana

Student Works (2000-2009)

Sejajar dengan perkembangan pesat penggunaan elemen-elemen mutlimedia dalam kehidupan maka 1 pakej multimedia tentang DOA akan dibangunkan yang bertujuan memberi alternatif serta mewarnai pembelajaran secara tidak formal tentang amalan-amalan dalam Islam. Projek pakej DOA ini akan dibangunkan mulai Mac 2001 sehingga September 2001. Sasaran pengguna bagi pakej ini ialah kanak-kanak dan dewasa. Pakej ini mempunyai objektif seperti untuk menarik minat pengguna mempelajari doa, membantu pengguna menghafal doa melalui teknik-teknik tertentu dan membantu pengguna kanak-kanak membaca doa dengan betul. Skop pakej ini iaklah bagi modul kanak-kanak diselitkan elemen animasi, audio dan imej. Teks doa disediakan dalam 2 bentuk iaitu tulisan Jawi …

Income Tax Preparation System, Hong Yin Lee

Student Works (2000-2009)

The current income tax assessment system whereby income tax is assessed on the income earned in the preceding year and is assessed by the Inland Revenue Board (Jabatan Hasil Dalam Negeri) will be changed to a Self Assessment System. Self Assessment is the manner by which a taxpayer works out and pays his own income tax. It is not a new tax but a system whereby the taxpayer is given the responsibility to compute his own tax liability. Self Assessment is a total process change from the previous formal assessment system. Under the formal system, taxpayers are required to declare …

Node Splitting Algorithms In Tree-Structured High-Dimensional Indexes For Similarity Search, Yongjian Fu, Jui Che Teng, S. R. Subramanya

Computer Science Faculty Research & Creative Works

Content-based searches and retrievals in multimedia and image databases use high-dimensional indexing structures for organizing the features of the objects. Most of those index structures are tree-structured whose nodes have a limit on the number of entries describing the subtrees rooted at those nodes. When index trees are built by repeated insertion of entries, nodes need to be split and the tree balanced accordingly. Node-splitting algorithms eventually determine the final structure of the tree which will have a profound effect on the search performance. This paper presents a comparative study of several node splitting algorithms for a typical high-dimensional indexing …

Some Extensions Of Loewner's Theory Of Monotone Operator Functions, Daniel Alpay, Vladimir Bolotnikov, A. Dijksma, J. Rovnyak, A. Dijksma

Mathematics, Physics, and Computer Science Faculty Articles and Research

Several extensions of Loewner’s theory of monotone operator functions are given. These include a theorem on boundary interpolation for matrix-valued functions in the generalized Nevanlinna class. The theory of monotone operator functions is generalized from scalar- to matrix-valued functions of an operator argument. A notion of -monotonicity is introduced and characterized in terms of classical Nevanlinna functions with removable singularities on a real interval. Corresponding results for Stieltjes functions are presented.

Vertex-Unfoldings Of Simplicial Manifolds, Erik D. Demaine, David Eppstein, Jeff Erickson, George W. Hart, Joseph O'Rourke

Computer Science: Faculty Publications

We present an algorithm to unfold any triangulated 2-manifold (in particular, any simplicial polyhedron) into a non-overlapping, connected planar layout in linear time. The manifold is cut only along its edges. The resulting layout is connected, but it may have a disconnected interior; the triangles are connected at vertices, but not necessarily joined along edges. We extend our algorithm to establish a similar result for simplicial manifolds of arbitrary dimension.

Proportionality Of Financial Ratios And Prediction Of The Company Performance Of Stocks In The Kuala Lumpur Stock Exchange, Siew Foong Yeong

Student Works (2000-2009)

This paper analyses the proportionality assumption of financial ratios generated from counters selected from Kuala Lumpur Stock Exchange (KLSE), Malaysia. Proportionality assumption in financial ratios is essential in financial statement analysis as it allows us to compare ratios across firms of different sizes. Thus, it also allows us to use financial ratio to further our analysis into company performance prediction. Earning Per Share (EPS) and Revenue Per Share (RPS) are among the tools in measuring company performance. OLS regression analysis with enter-all-variables and stepwise methods will be used to forecast company performance, where this year (n) financial ratios will be …

Topological Sweep In Degenerate Cases, Eynat Rafalin, Diane Souvaine, Ileana Streinu

Computer Science: Faculty Publications

Topological sweep can contribute to efficient implementations of various algorithms for data analysis. Real data, however, has degeneracies. The modification of the topological sweep algorithm presented here handles degenerate cases such as parallel or multiply concurrent lines without requiring numerical perturbations to achieve general position. Our method maintains the 0(n2) and 0(n) time and space complexities of the original algorithm, and is robust and easy to implement. We present experimental results.

Dynamic Modelling Of A Two-Stage Atm Tandem Banyan Switch, Hon Loke Tham

Student Works (2000-2009)

This dissertation studies the dynamic modelling of Two-State ATM Tandem Banyan Switch. First of all, ATM technology and ATM switch are introduced, then the ATM switch's architecture and its functions are discussed in detail. A Two-State ATM Tandem Banyan Switch has been selected as a model to be simulated. MATLAB's Simulink tool has been used to dynamically model the ATM switch. The ATM switch simulated is a simple two-stage Banyan Switch. It consists of 2 lnports x 2 Outports, with a switching algorithm included. The algorithm covers all cell flow patterns that are possible in a 2 lnports x 2 …

Exploring Visitor Experiences On Going-To-The-Sun Road In Glacier National Park, Robert N. Giordano

Graduate Student Theses, Dissertations, & Professional Papers

Going-to-the-Sun Road (GTSR) is one of the premier road facilities in the world. As the only cross-mountain route through Glacier National Park, the road brings nearly two million visitors a year into the heart of Montana wilderness. How to meet this demand for travel while protecting the nature of the visitor experience and the pristine setting for which the experience exists is a challenge of on-going complexity.

This research was designed to assist park managers in determining future changes to GTSR by describing and analyzing the experiences on the road today. Through 40 onsite interviews at Logan Pass (the pinnacle …

Knowledge Management Mechanisms In E-Commerce: A Study Of Online Retailing And Auction Sites, Fiona Fui-Hoon Nah, Keng Siau, Yuhong Tian, Min Ling

Research Collection School Of Computing and Information Systems

Knowledge management is vital to a company's success in this e-commerce era. Not only has the topic of knowledge management attracted much research attention lately, but the management of customer knowledge is also becoming increasingly important. Despite its significance, few research studies have systematically investigated knowledge management in the e-commerce context. None of the studies we reviewed looked at how knowledge management mechanisms were employed in e-commerce. This research presents a comprehensive analysis of the knowledge management mechanisms employed by 14 e-commerce sites that were rated as being the best by Gomez.com, an independent Internet quality measurement firm. Specifically, we …

Acceptable Internet Use Policy, Keng Siau, Fiona Fui-Hoon Nah, Limei Teng

Research Collection School Of Computing and Information Systems

Surveying use policies of three organizations--- educational institutions, ISPs, and non-ISPs.

Community Banking In The E-Business Era, Peter Southard, Keng Siau

Research Collection School Of Computing and Information Systems

This paper reviews how existing and potential uses of Internet technology can generate a competitive advantage for rural community banks. To do so, it offers a framework for analyzing Internet technology investment decisions. Organizations in this segment of the banking industry are often more removed from centers of technology and have traditionally been more conservative in their approaches to information technology (among other things). Banking Associations have developed in the U.S., such as the Independent Bankers Association, to try and help community banks coordinate marketing, legislative, and other issues that they have in common. The use of Internet technology can …

Enabling Technologies For E-Commerce And Erp Integration, Keng Siau, Jake Messersmith

Research Collection School Of Computing and Information Systems

Focuses on a study which analyzed the enabling technologies for integrating Enterprise Resource Planning (ERP) and e-business. Difficulties in integrating ERP and e-business; Architecture supporting ERP and e-commerce; Model for integrating ERP and e-business.

Enhancing Profiles For Anomaly Detection Using Time Granularities, Yingjiu Li, Ningning Wu, X. Sean Wang, Sushil Jajodia

Research Collection School Of Computing and Information Systems

Recently, association rules have been used to generate profiles of normal behavior for anomaly detection. However, the time factor (especially in terms of multiple time granularities) has not been utilized extensively in generation of these profiles. In reality, user behavior during different time intervals may be very different. For example, the normal number and duration of FTP connections may vary from working hours to midnight, from business day to weekend or holiday. Furthermore, these variations may depend on the day of the month or the week. This paper proposes to build profiles using temporal association rules in terms of multiple …

Glass Transition Behavior Of Thin Poly(Methyl Methacrylate) Films On Silica, Moses T. Kabomo

Masters Theses

"Modulated Differential Scanning Calorimetry (MDSC) was used to study the glass transition behavior of poly(methyl methacrylate) (PMMA) adsorbed onto silica substrates from toluene. Untreated fumed amorphous silica and silica treated with hexamethyldisilazane were used for the adsorption to probe the effect of polymer- substrate interactions. To test the effect of molecular weight on the T_g of adsorbed polymers, low polydispersity PMMA samples of varying molecular weights were used. The results revealed a broadening of the glass transition towards high temperatures. The observed increase in the glass transition breadth varied with adsorbed amount and the type of silica used for …

Modeling The Biogeochemical Cycle Of Selenium In The San Francisco Bay, Shannon L. Meseck

OES Theses and Dissertations

Due to recent concerns about selenium toxicity in the San Francisco Bay and the roles of refinery and San Joaquin River inputs on the selenium cycle, the model ECoS 3 (distributed from Plymouth Marine Laboratory, United Kingdom) was modified to simulate the biogeochemical cycle of selenium in the Northern Reach. The model is designed to simulate salinity, total suspended material, phytoplankton concentrations, dissolved selenium and its speciation (selenite, selenate, and organic selenide), and particulate selenium and its speciation (selenite + selenate, elemental selenium, and organic selenide). Actual data from 1999 were used to calibrate the model, while data from other …

Video Indexing And Retrieval Techniques Using Novel Approaches To Video Segmentation, Characterization, And Similarity Matching, Waleed Ezzat Farag

Computer Science Theses & Dissertations

Multimedia applications are rapidly spread at an ever-increasing rate introducing a number of challenging problems at the hands of the research community, The most significant and influential problem, among them, is the effective access to stored data. In spite of the popularity of keyword-based search technique in alphanumeric databases, it is inadequate for use with multimedia data due to their unstructured nature. On the other hand, a number of content-based access techniques have been developed in the context of image indexing and retrieval; meanwhile video retrieval systems start to gain wide attention, This work proposes a number of techniques constituting …

The Classical Limit Of The Quantum Baker's Map, Mark Morgan-Tracy

Physics & Astronomy ETDs

This work concerns the finding of the semi-classical form of the coherent state representation for the class of quantum baker’s maps defined by Schack and Caves. It begins by introducing the finite-dimensional Hilbert space on which the quantum baker’s map is defined. Its pertinent features including the all important symmetry operators are introduced and given a full explanation. We also introduce the finite-dimensional phase space which will give the semi-classical limit a geometrical interpretation. For a D dimensional Hilbert space, the finite-dimensional phase space is found to be a grid with D2 points. Each point corresponds to a particular pair …

Proceedings Of The First International Conference On Neutrosophy, Neutrosophic Logic, Neutrosophic Set, Neutrosophic Probability And Statistics, Florentin Smarandache

Branch Mathematics and Statistics Faculty and Staff Publications

In 1960s Abraham Robinson has developed the non-standard analysis, a formalization of analysis and a branch of mathematical logic, that rigorously defines the infinitesimals. Informally, an infinitesimal is an infinitely small number. Formally, x is said to be infinitesimal if and only if for all positive integers n one has xxx < 1/n. Let &>0 be a such infinitesimal number. The hyper-real number set is an extension of the real number set, which includes classes of infinite numbers and classes of infinitesimal numbers. Let’s consider the non-standard finite numbers 1+ = 1+&, where “1” is its standard part and “&” its non-standard part, …

Randomness And Optimal Estimation In Data Sampling, Florentin Smarandache, Mohammad Khosnevisan, Housila P. Singh, S Saxena, Sarjinder Singh

Branch Mathematics and Statistics Faculty and Staff Publications

The purpose of this book is to postulate some theories and test them numerically. Estimation is often a difficult task and it has wide application in social sciences and financial market. In order to obtain the optimum efficiency for some classes of estimators, we have devoted this book into three specialized sections: Part 1. In this section we have studied a class of shrinkage estimators for shape parameter beta in failure censored samples from two-parameter Weibull distribution when some 'apriori' or guessed interval containing the parameter beta is available in addition to sample information and analyses their properties. Some estimators …

Optimal Simulation Of Two-Qubit Hamiltonians Using General Local Operations, C. H. Bennett, J. I. Cirac, Matthew S. Leifer, D. W. Leung, N. Linden, S. Popescu, G. Vidal

Mathematics, Physics, and Computer Science Faculty Articles and Research

We consider the simulation of the dynamics of one nonlocal Hamiltonian by another, allowing arbitrary local resources but no entanglement or classical communication. We characterize notions of simulation, and proceed to focus on deterministic simulation involving one copy of the system. More specifically, two otherwise isolated systems A and B interact by a nonlocal Hamiltonian H≠HA+HB . We consider the achievable space of Hamiltonians H8 such that the evolution e2iH8t can be simulated by the interaction H interspersed with local operations. For any dimensions of A and B, and any nonlocal Hamiltonians H and H8, there exists a scale factor …

A New Occurrence Of Archaeoscyphia Pulchra (Bassler) From The Ordovician Of Western Canada, J. Keith Rigby, Godfrey S. Nowlan, Peter A. Rowlands

Faculty Publications

A few specimens of the ornate anthaspidellid demosponge, Archaeoscyphia pulchra (Bassler), have been collected from the Lower Ordovician Outram Formation or Skoki Formation, from a saddle at the head of South Rice Brook in northeastern British Columbia. This is the first report of the flanged-appearing annulate, steeply obconical sponge in western Canada, although it has been reported from the Mingan Islands of Quebec and was initially described from Nevada, in the western United States. The taxon has also been reported as other species of Archaeoscyphia from Ordovician rocks of Missouri and from the San Juan region of Argentina.