Educational Interactive Multimedia Software: Can it Effectively Teach Engineering Concepts?

1999 ◽  
Author(s):  
Derek T. Reamon ◽  
Sheri D. Sheppard
Keyword(s):  
Statistical Analysis ◽  
Direct Current ◽  
Engineering Students ◽  
Interactive Multimedia ◽  
Educational Effectiveness ◽  
Multimedia Software ◽  
Teaching Techniques ◽  
Preference Group ◽  
Dc Motors ◽  
Rigorous Statistical Analysis

Abstract This paper provides a rigorous statistical analysis of the educational effectiveness of a curriculum module pertaining to direct current (DC) motors and motorized systems. Educational interactive multimedia software played an important role in the module, which also included lectures, a design project and other more traditional pedagogics. Pre- and post-tests were administered to measure learning during the module and individual test questions targeted specific areas of the curriculum to determine the contribution of the various resources to the entire learning environment. The data indicate that the module was indeed educationally successful and that the software contributed to the curriculum’s success. The module was particularly effective for promoting learning by female engineering students in the course and mitigated some discrepancies in prior knowledge. Students were also grouped into four preference groups based on analysis of students’ preference questionnaire responses. The data indicate that each preference group responded differently to the various teaching techniques employed in the curriculum.

Simultaneous analysis of families of sigmoidal curves: application to bioassay, radioligand assay, and physiological dose-response curves.

1978 ◽  
Vol 235 (2) ◽  
pp. E97 ◽  
Author(s):  
A DeLean ◽  
P J Munson ◽  
D Rodbard
Keyword(s):  
Statistical Analysis ◽  
Dose Response ◽  
Curve Shape ◽  
Response Curves ◽  
Pharmacological Studies ◽  
Rigorous Statistical Analysis ◽  
Efficient Data ◽  
Dose Response Curves ◽  
Physiological Dose ◽  
Efficient Data Analysis

Physiological and pharmacological studies of hormones, drugs, and neurotransmitters often generate families of sigmoidal dose-response curves. Optimally efficient data analysis should involve simultaneous description of all curves, rather than fitting each one individually. We have developed a general computerized method to describe the dose-response curves in terms of basal and maximal responses, ED50, and curve shape or steepness. This facile method permits rigorous statistical analysis, provides a basis for pooling of information from separate experiments, and allows one to test which characteristics are shared by various curves.

scholarly journals FACTORS OF SAFETY FOR THE DESIGN OF BREAKWATERS

1982 ◽  
Vol 1 (18) ◽  
pp. 125
Author(s):  
J.D. Mettam ◽  
J.G. Berry
Keyword(s):  
Statistical Analysis ◽  
Specific Gravity ◽  
Factor Of Safety ◽  
Hydraulic Model ◽  
Model Testing ◽  
Design Tool ◽  
Rigorous Statistical Analysis

This paper proposes to improve the safety of breakwaters by two important changes in the philosophy of design. When hydraulic model testing is used as a design tool the authors propose to reduce the specific gravity of the model breakwater to introduce a factor of safety in the prototype. They also recommend that the concept of testing for stability with the once in 50 year or once in 100 year wave should be replaced by a more rigorous statistical analysis to determine a design wave which has a probability of exceedence of no more than 5% in the lifetime of the structure.

An Exploratory Study of the Process Senior Undergraduate Students Follow to Design an Interactive Multimedia Application

2012 ◽  
Vol 3 (3) ◽  
pp. 1-15 ◽  
Author(s):  
Ilias Hotzoglou
Keyword(s):  
Information Technology ◽  
Software Development ◽  
Undergraduate Students ◽  
Exploratory Study ◽  
Interactive Multimedia ◽  
Development Project ◽  
Multimedia Application ◽  
Multimedia Software ◽  
Capstone Course ◽  
Software Development Project

This paper deals with the process followed by undergraduate students in designing an interactive multimedia application during their final capstone course “Multimedia Software Development Project” at Deree College. It focuses on the steps taken in the design of this application, the information technology used, the problems they faced as well as the solutions offered.

Output Feedback Robust Control of Direct Current Motors With Nonlinear Friction Compensation and Disturbance Rejection

2014 ◽  
Vol 137 (4) ◽  
Author(s):  
Jianyong Yao ◽  
Zongxia Jiao ◽  
Dawei Ma
Keyword(s):  
Direct Current ◽  
High Performance ◽  
Controller Design ◽  
High Accuracy ◽  
Friction Model ◽  
Practical Implementation ◽  
Accuracy Control ◽  
External Disturbances ◽  
Output Tracking ◽  
Dc Motors

High accuracy tracking control of direct current (DC) motors is concerned in this paper. A continuously differentiable friction model is adopted to account for the friction nonlinearities, which allows more flexible and suitable practical implementation. Since only output signal is available for measurement, an extended state observer (ESO) is designed to provide precise estimates of the unmeasurable state together with external disturbances, which facilitates the controller design without any transformations. The global stability of the controller is ensured via a certain robust feedback law. The resulting controller theoretically guarantees a prescribed tracking performance in general, while achieving asymptotic output tracking in the absence of time-varying disturbances, which is very important for high accuracy control of motion systems. Comparative experimental results are obtained to verify the high-performance nature of the proposed control strategy.

Sign in / Sign up

Export Citation Format

Share Document