173 research outputs found
E-Abacus animator / Lim Chun Yit
No full textE-Abacus Animator is a web-based teaching-learning tool that is aimed at providing users with all possibilities to learn and teach mental arithmetic with an abacus like the E-Learning system. An abacus is a culculating instrument with a number of beads sliding back and forth along rods, for doing and teaching arithmetic. Mental arithmetic is the way to do math in our head without any pencil and paper. It can be make our get clearer picture for the arithmetic problem. E-Abacus Animator will be provides skills, examples, tutorials and tests for each arithmetic operation to
make sure the user get the clear understanding for the arithmetic problem by using the Abacus. E-Abacus Animator is divided into two parts: user homepage and administrator homepage. The user homepage provides all possibilities for learning and teaching mental arithmetic with an abacus, and provides strategies, examples, tutorials for each arithmetic operation. It provides the following functions:. Lessons learning: consists of 5 sections comprising of a simulated abacus for calculation and 4 lessons for reading an abacus, addition, subtraction, multiplication, division and combined operation. The administrator homepage allows the administrator to maintain all step of the examples, tutorials and test questions at the back-end database system. It provides the following functions: Administrator authorization: to check the authorizations to access the administrator homepage. · Question module: consists of 4 sections comprising of earch, add and delete, for maintaining the questions and answers and steps in the database. This report provides an overview for the -Abacu nimat raft r make some enhancements. The enhancements provide a hamepage and the database.The main objective of this system is introduce a database system to assist the system. After the enhancement, it divides into two categories. (the administrator part and a user part) E-Abacus Animator system is implem nted b using the development tool which is Microsoft Visual Studio .NET 2003 in this case
Evaporation modelling for low-temperature, long-term exposure of wood under isothermal heating
No full textFire Safety Science91177-118
Venttiilihuollon toimintamalli : YIT teollisuus Oy:n toimintamalli Borealis Oy:lle
No full textOpinnäytetyön tavoitteena oli tutustua venttiilihuoltoon ja luoda YIT teollisuudelle venttiiliurakoinnin toimintamalli, joka vastaisi Borealiksen tarpeita. Tarkoituksena oli, että tätä mallia pystyttäisi pienillä muutoksilla käyttämään muillakin teollisuuden laitoksilla. Opinnäytetyön tavoitteena oli myös auttaa urakkalaskentaa löytämään kaikki kustannuksia vaikuttavat tekijät.
Työssä käsiteltiin erilaisia automaattiventtiilejä sekä niihin oleellisesti liittyviä tekijöitä, joiden perusteella toimintamalli luotiin. Toimintamallin tavoitteena oli helpottaa venttiilihuollon aloittamista ja auttaa urakoinnin laskennassa sekä toteuttamisessa.
Yritykselle luotu toimintamalli auttaa ohjaamaan venttiiliurakointia urakointikohteesta riippumatta. Toimintamallin avulla suoritettavalla työllä voidaan varmistaa venttiiliurakoiden moitteeton laatu. Toimintamallilla halutaan jatkuvasti kehittää yrityksen kunnossapito palvelua tehokkaammaksi ja kannattavammaksi.The purpose of this thesis was to orientate to service of valves and to create for YIT teollisuus an operations model for valve contract work, which would correspond to the needs of Borealis. The author aimedat creating a model that can be with minor modifications utilized in other industrial plants as well. In addition, the purpose was to enable contract cost calculation to find all factors influencing the costs.
This thesis dealt with various automatic valves including the related relevant factors based on which the operations model was generated. The objective of this model was to facilitate initiation of valve service, calculation of contract costs, and implementation.
The operations model helps the company to steer contract work of valve service regardless of the target. The model also enables assuring of flawless quality of the valve contract work. It is aimed at further developing the operations model and enabling a more efficient and profitable maintenance service for the company
Telecommunications business venturing in China : identification of investment orientations using deal reporting
No full textThesis (S.M.)--Massachusetts Institute of Technology, Engineering Systems Division, Technology and Policy Program, 2005.Includes bibliographical references (p. 97-102).China's recent entry into the World Trade Organization (WTO) in December 2001 has lent speed to an ongoing series of market reforms that has opened up the massive Chinese domestic market to the world. The thought of China selling its products and services freely in global markets in exchange for opening up its own growing domestic market of 1.2 billion people is staggering and demands for business and policy decision makers to have an understanding of China's unique investment landscape. Centering on technology venturing in the telecommunications sector in mainland China, this research identifies and analyzes patterns of deal-making and strategies that motivate business investments in the technology space in mainland China. Three investment orientations - cost- minimization, domestic market-driven and joint development - are proposed and verified using the research data. Data was collected on all publicly-reported deals in China, published in business reporting services in the English language including the China Business Review, Reuters, Investext, Dow Jones, and The Economist Intelligence Unit. Objective data on deal attributes was matched with subjective and evaluative data on strategies and expected deal significance. By performing content analysis and statistical analysis on the data collected, results were obtained regarding the investment orientations in mainland China of two companies, UTStarcom Inc. and Nortel Networks Corp. It was found that significant differences existed in the objective and subjective attributes of telecommunications business ventures in China.(cont.) The two companies that were studied exhibited all proposed investment orientations, including the third joint development orientation that is emerging and directing investments into Sino-foreign partnership opportunities that jointly developed 3G products for the international market. There is a decreasing trend in number of Sino-foreign import contracts and an increasing trend in Sino-foreign exports in telecoms. These results point to the emergence of Chinese telecom companies that compete strongly in the Chinese marketplace and in international markets. Three deal drivers are identified from the deals that were studied, along with several possible risk-bearing changes that might result from policy influences in China. Difficulties in tracking deals are described and the implications of the research findings from a business and policy perspective are discussed.by Tony Whey Yit Lim.S.M
FIRE EVACUATION IN THE KALLANG-PAYA LEBAR EXPRESSWAY
No full textBachelor'sBACHELOR OF SCIENCE (PROJECT AND FACILITIES MANAGEMENT
AN INVESTIGATION OF SURFACE COATING TREATMENTS IN MITIGATING ALGAE GROWTH ON TROPICAL FAçADE SUBSTRATES
No full textBachelor'sBACHELOR OF SCIENCE (PROJECT AND FACILITIES MANAGEMENT
A parametric formulation of the generalized spectral subtraction method
No full textThis thesis describes an acoustic noise suppression system for speech commu-nication applications when the noisy speech alone is available. Two short-time spectral amplitude estimators of the speech signal were derived and used for the system. The two estimators were derived based on a parametric formula-tion of the original generalized spectral subtraction method [6], [7], [21,pp. 509). The objective is to reduce the excessive level of residual noise and musical tone artifacts in the noise-suppressed speech commonly associated with the original method.Master of Engineerin
The Impact of the Severe Acute Respiratory Syndrome (SARS) on International Airline Demand in Asia Pacific
No full textThe aim of this dissertation is to analyse the impact of exogenous factors on efficiency of airlines based in the Asia Pacific using the Data Envelopment Analysis (DEA) approach. In measuring the efficiency of different airlines, the effects of the environment (exogenous factors) and the effects of productive efficiency are isolated. Exogenous factors refer to essentials outside the control of the firms while productive efficiency signifies the individual airline’s profitability state of affairs through a lengthy period of time. The focal point of this study revolves around the epidemic period of Severe Acute Respiratory Syndrome (SARS), the widespread which put the global airline industry and especially the Asia Pacific, into turmoil from February 2003, and lasted almost 6 months into the year. In June 2003, the height of the SARS pandemic saw passenger boardings at major hubs dwindled significantly, threatening even the most profitable airlines to file for bankruptcy. Because SARS mostly affected travel hubs such as Hong Kong, Taiwan, Bangkok, Singapore and outside of Asia Pacific, Canada, airlines included in this study are concentrated on these few airport hubs. Representing the airline industry within the Northeast Asia (NEA) region are Cathay Pacific Airways (CX) of Hong Kong and China Airlines (CI) of Taiwan. In Southeast Asia (SEA), airlines involved in this study are Singapore Airlines (SQ) and Thai Airways International (TG). Also, the basis of this study is to ascertain of these four most affected airlines, which counter the impact of SARS more efficiently and how long the lagging effect SARS has on these airlines. According to Yu (1998), there are two approaches to account for the effects of exogenous factors:
1) Stochastic Frontier Method: a one-step procedure which includes exogenous variables directly in estimating the efficiency measures;
2) Data Envelopment Analysis: a two-step approach which firstly estimates the relative gross efficiencies using both inputs and outputs and then, analyses the effects of exogenous variables on the gross efficiency.
In this study, however, the Data Envelopment Analysis technique will be employed in ascertaining the efficiency of these selected airlines in Asia Pacific during turbulent times. A comparison will be carried out between these four major carriers to establish their relative efficiency to rebound from the unprecedented impact of SARS. It will be seen how the fastest growing region, the Asia Pacific, can counter adverse effect of exogenous factors and continue with the upward trends in both passenger mass and cargo traffic while most established airlines in America and Europe spiraled downwards in times of crisis. The Malmquist DEA methods are subsequently adopted to calculated indices of total factor productivity (TFP) change, scale efficiency change,technological change, technical efficiency change and pure technical efficiency change
The Impact of the Severe Acute Respiratory Syndrome (SARS) on International Airline Demand in Asia Pacific
No full textThe aim of this dissertation is to analyse the impact of exogenous factors on efficiency of airlines based in the Asia Pacific using the Data Envelopment Analysis (DEA) approach. In measuring the efficiency of different airlines, the effects of the environment (exogenous factors) and the effects of productive efficiency are isolated. Exogenous factors refer to essentials outside the control of the firms while productive efficiency signifies the individual airline’s profitability state of affairs through a lengthy period of time. The focal point of this study revolves around the epidemic period of Severe Acute Respiratory Syndrome (SARS), the widespread which put the global airline industry and especially the Asia Pacific, into turmoil from February 2003, and lasted almost 6 months into the year. In June 2003, the height of the SARS pandemic saw passenger boardings at major hubs dwindled significantly, threatening even the most profitable airlines to file for bankruptcy. Because SARS mostly affected travel hubs such as Hong Kong, Taiwan, Bangkok, Singapore and outside of Asia Pacific, Canada, airlines included in this study are concentrated on these few airport hubs. Representing the airline industry within the Northeast Asia (NEA) region are Cathay Pacific Airways (CX) of Hong Kong and China Airlines (CI) of Taiwan. In Southeast Asia (SEA), airlines involved in this study are Singapore Airlines (SQ) and Thai Airways International (TG). Also, the basis of this study is to ascertain of these four most affected airlines, which counter the impact of SARS more efficiently and how long the lagging effect SARS has on these airlines. According to Yu (1998), there are two approaches to account for the effects of exogenous factors:
1) Stochastic Frontier Method: a one-step procedure which includes exogenous variables directly in estimating the efficiency measures;
2) Data Envelopment Analysis: a two-step approach which firstly estimates the relative gross efficiencies using both inputs and outputs and then, analyses the effects of exogenous variables on the gross efficiency.
In this study, however, the Data Envelopment Analysis technique will be employed in ascertaining the efficiency of these selected airlines in Asia Pacific during turbulent times. A comparison will be carried out between these four major carriers to establish their relative efficiency to rebound from the unprecedented impact of SARS. It will be seen how the fastest growing region, the Asia Pacific, can counter adverse effect of exogenous factors and continue with the upward trends in both passenger mass and cargo traffic while most established airlines in America and Europe spiraled downwards in times of crisis. The Malmquist DEA methods are subsequently adopted to calculated indices of total factor productivity (TFP) change, scale efficiency change,technological change, technical efficiency change and pure technical efficiency change
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