1. <a href="./Journals/Article/IENJ/10376556.pdf" target="_blank">A study of energy conversion by a porous combustor-heat exchanger with cyclic flow reversal combustion</a><br>Sumerng Jugjai and Chanon Chuenchit<br><hr>2. <a href="./Journals/Article/IENJ/10376557.pdf" target="_blank">Emerging issues and new challenges in electric power systems</a><br>S.N. Singh<br><hr>3. <a href="./Journals/Article/IENJ/10376558.pdf" target="_blank">Heat pump dryers using hcfc 22 and hfc 134a as refrigerants</a><br>Umphisak Teeboonma, Somchart Soponronnarit, Jirawan Tiasuwan, Warunee Tia and Warraboon Kaewassadorn<br><hr>4. <a href="./Journals/Article/IENJ/10376559.pdf" target="_blank">Investingations on characteristic parameters and power degradation of amorphous silicon solar modules based on long-term outdoor testing</a><br>Marwan M. Mahmoud<br><hr>5. <a href="./Journals/Article/IENJ/10376560.pdf" target="_blank">The potential for wood gasifiers for tea drying in sri lanka</a><br>T.H. Jayah, R.J. Fuller, Lu Aye and D.F. Stewart<br><hr>