Welcome to the Technology Interface, the on-line journal for the Engineering Technology profession serving education and industry. We have many excellent papers for this issue. The authors have done an excellent job with their topic selection and their coverage of the material. We also want to thank the reviewers for an exceptional job reviewing manuscripts submitted to the Technology Interface. Their critique has been outstanding and the feedback provided back to the authors has resulted in papers of exceptional quality.

The papers appearing in the Technology Interface are provided in both Adobe pdf and html format. The Adobe pdf format provides high quality production of the manuscript while the html format provides maximum visibility with Internet search engines.

The Technology Interface has been developed to provide professionals in the Engineering Technology profession and related fields, the opportunity to share ideas concerning teaching, teaching improvements, projects, industrial activities, research and much more via the internet. Your continued support of this project is greatly appreciated.

The Technology Interface is currently seeking papers and TechTips for the Spring 2008 edition. The deadline for submitting papers or TechTips for inclusion in the Spring 2008 edition is March 17, 2008.

Submissions should be sent to, Jeff Beasley, Editor

Thank you for supporting the Technology Interface .

Jeff Beasley, Editor
Michael Morrell, Associate Editor
Farrokh Attarzadeh, Associate Editor for student papers.

Manufacturing
A Study of the Thermal Characteristics of P20 Steel and S4 Rapid Tooling Material with Conventional and Conformal Cooling Channel		Jonathan Meckley
Fabrication of Printed Circuit Boards Using a Table Top CNC Mill		Christopher F. Wise
Mechanical
Measuring Young's Modulus with Metal Flatstock		Barry Dupen
Using Model Simulations to Teach Overall Equipment Effectiveness		Chad Gregg, Edward J. Lazaros, Ph.D.
Networking
A Senior Design Project on Network Security		Yu Cai, Howard Qi
Electronics
Determining the Effective or RMS Voltage of Various Waveforms without Calculus		Kenneth V. Cartwright, Ph.D.
Endless Coffee Pot		Lee Howard, Brian Meixell, Juan Montelongo, Brian Sturhan, Manmeet B. Patil, Dr. Farrokh Attarzadeh
Direct Monte Carlo Simulation of Time-Dependent Problems		Matthew. N. O. Sadiku, Cajetan M. Akujuobi, Sarhan M. Musa, and Sudarshan R. Nelatury
Evaluation of Dynamic and Static Electrical Characteristics for the DY8 & YI8 process Gallium diodes in comparison to the DI8 process Boron diodes		Swathi Dhoopathi, Vijay Vaidyanathan, Albert Grubbs and Robert Hayes
The Impacts of Hardware Description Languages and Large-Scale Programmable Logic Devices on Digital Hardware Design Education in Engineering Technology Programs		Hong "Jeff" Nie, Recayi "Reg" Pecen
A Graphical Teaching Aid to Illustrate Fourier Harmonics		Harding and Long
Design and Implementation of a Microcontroller-Based Ignition System		Sohail Anwar, Patrick Favier, Peter Vida
Civil
Effect of Fibrillated Polypropylene Fiber Reinforcement on Concrete Behavior		Jiang, Lowe, and Du
Education
Creating multiple assessments from classroom assignments		Joseph P. Fuehne, Ph.D.
Scheduling of Flexible Manufacturing System using Tabu Search Technique		P.Senthil Velmurugan, V.P.Eswaramurthy, V.Selladurai, A.Tamilarasi
Application of Technology in Course Transformation from Live to Distance Learning		Ali Mehrabian, Ph.D.
Promoting Creativity and Innovation in an Entrepreneurial Certificate Program through Science and Technology		Kari L. Clase, Ph.D
Robot Teams: Adding Excitement to Technology Education		Richard T. Johnson
Teaching and Technology Innovations Improve Learning in Problems and Team-Based Course		David W. Gore
Communications
Modeling and Simulation of Shielded Microstrip Lines		Sarhan M. Musa, Matthew N.O. Sadiku
Modeling and Performance Analysis of Mobile Ad Hoc Networks		Xiaolong Li, Biswajit Panja, Ahmad Zargari

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