Use of regression method of estimation for estimating mean from incomplete sample
Thesis - 4 pages - Mathematics
In this paper we have used Hansen and Hurwitz technique along with Regression method of estimation and developed a better estimator than one suggested by Hansen & Hurwitz. We have also worked out optimum k and n for large N and found same as those for HH estimator. Hansen and Hurwitz (1946) were...
Concrete mix design and concrete testing: An experiment using the slump test and compression test
Thesis - 5 pages - Physics
This paper investigates the design of a concrete mix to a specified strength. In particular, it studies the behavior of concrete under compressive loading in order to determine properties such as (1) the compressive strength taken on concrete cylinders taken at 2, 7, 14 and 28-day intervals and...
Hardness and impact test of metals: An experiment using the Rockwell hardness test and the Brinell hardness test (Macroindentation measurements)
Thesis - 6 pages - Physics
Solid material objects come in contact with each other, exerting and transferring forces. The outcome from this contact is subject to the relative hardness of each material and to the magnitude of the stresses induced relative to their yield or fracture strengths. In order to predict accurately...
The Autopilot in planes
Course material - 9 pages - Electronics, mechanics, engineering & technology
Autopilot is a complex but very interesting system. We're going to tell you about the Autopilot in planes. The Adiru is one of the two parts of an Autopilot, the one that gets information from the outside, such as speed, altitude, etc. and transmits it to the computers that calculates and...
Patient's history of health and healing: The many causes and cures of the ailments of Samuel Pepys
Thesis - 5 pages - Medical studies
Samuel Pepys epitomized the medical beliefs of the 17th century British patient. In his 1663 diary he chronicled his diseases and noted the perceived causes and treatments of those diseases. Pepys believed there could be multiple causes for disease, including religion, humoral imbalance, and the...
A new motion compensation technique for efficient video coding
Thesis - 6 pages - Computer science
Motion estimation and motion compensation are two interrelated and obviously important tasks in the total video coding process. Out of several motion estimation methods block matching algorithm (BMA) is the simplest, hence rightly adopted by several MPEGs and H.26X standards. Motion compensation...
A comprehensive model for IS development: Information processing perspective
Thesis - 7 pages - Computer science
In order to develop IS (information systems) effectively, this study proposed a comprehensive model that delineates the relationships among contingency configurations of design variables, risk management, and software development success. Specifically, this paper examined the fit between...
The measurement of information technology literacy: A case of Thai graduates
Tutorials/exercises - 6 pages - Computer science
The main objectives of this research are to develop a measurement tool for determining information technology literacy (ITL) and to assess the ITL of Thai graduates. ITL in this study is categorized into three components: fundamental knowledge, skills, and applications. The study consists of two...
Online electronic version on physical book purchase: An analysis on resale and welfare impact
Thesis - 7 pages - Computer science
Amazon recently began a new service: providing an electronic version of books to its consumers after they purchase the physical books. This business practice provides consumers with an opportunity to reseller brand new books, which will influence publisher, retailers and consumers. Using a...
Evolutionary algorithm for PCB scheduling problem
Tutorials/exercises - 9 pages - Mathematics
This study focuses on PCB scheduling problem with sequence-dependent setup times on a single machine and feeder capacity constraint. The objective of the scheduling problem is to minimize the total weighted tardiness. The evolutionary algorithms to solve this PCB scheduling problem is an...
An effective knowledge delivery for understanding hypothesis testing: Adding a step zero
Thesis - 5 pages - Mathematics
Knowledge on statistics is increasingly important for professionals in modern business. For example, hypothesis testing is especially one of the critical topics for quality managers and team workers in Six-Sigma training programs. Delivering the knowledge of hypothesis testing sometimes is an...
A study on search system for e-learning products
Essay - 5 pages - Computer science
In this paper, we propose the E-learning product search system (ELSS) which can provides high quality information fitted to the learners' demands. ELSS can also provide the accurate information that doesn't contain unnecessary information in mass e-learning products on the internet. Through...
Task-technology fit and adoption behaviors of mobile business systems
Essay - 8 pages - Computer science
In this paper, a combined task-technology fit (TTF) and UTAUT model is proposed to explore the adoption of mobile technologies in the real estate and insurance industry. The research results indicate: (1) five constructs: data quality, authorization, timeliness, reliability, and relationship with...
Variance estimation for adaptive cluster sampling with a single primary unit
Thesis - 8 pages - Mathematics
In this paper, an initial sample of the adaptive cluster sampling design is considered in terms of primary and secondary units. The primary unit contains units that are called secondary units and all these secondary units are arranged in systematic order. Although in some situations in field work...
Enterprise user interface and technology comparison
Tutorials/exercises - 19 pages - Computer science
The Enterprise User Interface (EUI) is a lightweight user interface for next generation of Web applications. It would extend the capabilities of the current Web browsers by incorporating the key strengths of the thick/full client environment while maintaining a lightweight user interface. EUI...
Simulation of coal bed methane flow characteristics in coal seams
Essay - 4 pages - Physics
The efficiency of methane released from a coal bed depends on various physical and structural factors of the coal bed. Methane is a gas that is absorbed on the internal surface of coal. The amount of gas that can be produced from a given coal bed depends on various factors such as seam thickness,...
Intelligent agent-assisted decision support for personalized virtual learning environment
Thesis - 7 pages - Computer science
In the delivery of online learning, Virtual Learning Environments (VLEs) have been growing quickly and research on intelligent agent supported eLearning systems has developed rapidly in the last decade. However, some online learning programs have not been successful, and one of the main reasons...
Using a meta-modeling knowledge management layer: A new approach to designing the enterprise information architecture
Thesis - 10 pages - Computer science
As organizations continue to evolve with Inter/Intranet -based applications in this fast moving era of electronic commerce, organizations should adopt an Information technology architecture that conserves knowledge and enables decision-makers to use information systems at an even higher level of...
The effects of controlled release and congestion in a flow shop with prohibited early shipments
Thesis - 10 pages - Physics
Experiments were conducted with a simulation model of a flow shop with prohibited early shipments under a wide variety of conditions including congestion, which was modeled separately as “blocking” and as “material handling cost (MHC).” Congestion was found to significantly...
Comparison of power of three tests of equality of means of Pareto populations
Thesis - 7 pages - Mathematics
To test the equality of means of non-normal data, both parametric test and non-parametric test may be applied. In this paper, the analysis of variance (ANOVA) test, the likelihood ratio test and the Kruskal-Wallis test are investigated in order to test the means of several Pareto distributions....
Fault tolerance in object tracking sensor network
Thesis - 5 pages - Physics
Sensor network is a system of nodes where each node is equipped with a battery which is used to supply power, a certain amount of computation, communication, a device for sensing and with some storage media. The reliability of wireless sensor networks is affected by faults that may occur due to...
Gesture recognition using divine proportion
Thesis - 5 pages - Computer science
In recent years, gesture recognition has become essential in many vision based systems related to wireless interfacing between human and machines. The rising interest in this research is in conjunction with the immense attentions of employing real time application to improve human - machine...
JPEG image compression using MATLAB
Thesis - 5 pages - Computer science
The paper deals with studying techniques for reducing the storage required saving an image, or the bandwidth required transmitting it. Image compression addresses the problem of reducing the amount of data required to represent a digital image. The underlying basis of the reduction process is the...
Human face detection using localized feature extraction
Thesis - 5 pages - Physics
Human face detection aims to detect the presence and subsequently the position of face or faces in an image is an important task in automated facial image analysis. Humans are able to detect and identify faces in a scene with little or no effort. Our brain analyses, performs segmentation ,...
Integrated system for speech recognition & voice recognition using DSP and neural networks
Thesis - 3 pages - Physics
Neural Networks find great application in the field of signal processing. Here in this paper too we have proposed a simple algorithm to achieve better efficiency in speech recognition and also capable of distinguishing between male and female voices. Speech recognition is the process of...
A simulation model for implementing collision detection & avoidance in InVANETs
Thesis - 4 pages - Computer science
Vehicular ad-hoc networks (VANETs) are an emerging new technology which is the focus of lot of ongoing research and projects.[12],[13] It aims at providing ubiquitous connectivity to mobile users and effective communication between vehicles on dynamic mobility. VANETs have various applications...
Route optimization in mobile adhoc networks
Thesis - 8 pages - Computer science
With the increase of portable devices as well as progress in wireless communications, ad hoc networking is gaining importance with the increasing number of widespread applications. Ad hoc networking can be applied in places where there is little or no communication infrastructure or existing...
Do online information retrieval systems pose a security threat?
Thesis - 4 pages - Computer science
The search engine's deceptive role of information mining from the crawled web servers has been gravely misunderstood. The general perception of search engine being an information locator is a universal truth. The 24x7 availability of the updated information makes it a potential information search...
Cascaded encryption through recursive key rotation and bitwise operation on blocks (CRKRBOB) of a session key
Thesis - 5 pages - Computer science
The technique considers a message as binary string on which a Cascaded Recursive Key Rotation and Bitwise Operation (CRKRBOB) is applied. A block of n bits is taken as an input stream, where n varies from 8 to 256, from a continuous stream of bits and the technique operates on it to generate the...
A framework for detection of distributed denial of service attacks
Thesis - 6 pages - Computer science
The increasing popularity of web-based applications has led to several critical services being provided over the Internet. This has made it imperative to monitor the network traffic so as to prevent malicious attackers from depleting the resources of the network and denying services to legitimate...
