Journal of
Engineering and Technology Research

  • Abbreviation: J. Eng. Technol. Res.
  • Language: English
  • ISSN: 2006-9790
  • DOI: 10.5897/JETR
  • Start Year: 2009
  • Published Articles: 197

Table of Content: January 2015; 7(1)

January 2015

Analysis of differences in internet user experiences and virtual network activities in Taiwan

Considered a crucial industrial development in the 21st century, the Internet has had a marked effect in shaping modern society. The ongoing development of handheld mobile Internet devices has enabled services in the virtual world to be updated constantly, thereby providing numerous options regarding the virtual network interactions and activities of Internet users. Among the various virtual network activities, people...

Author(s): Tsung-Yi Chen and Chien-Yun Huang

January 2015

Effect of oxygen plasma treatments on the structural and optical properties of polyimide films

A detailed study of some physical properties of Polyimide films after exposing them to oxygen plasma is presented. The structure of the sample has been analyzed by X-ray diffraction technique (XRD) and is found to be semi crystalline. Thermogravimetric Analysis (TGA) studies revealed that the thermal stability of polyimide films have improved after being exposed to oxygen plasma, at different time intervals, ranging...

Author(s): A. Atta and S. M. El-Sayed

January 2015

Characterization and determination of catechins in green tea leaves using UV-visible spectrometer

In this paper, characterizations of pure major catechins and method for determination of total catechins in green tea leaves have been reported using UV-visible spectrometer. Most research activities have been focused on chromatographic methods, however spectrophotometirc method is preferred because of its rapidity, high accuracy, and reproducibility. The optical transition properties of Epigallocatechin Gallate (EGCG)...

Author(s): T. Atomssa and A. V. Gholap