Collection of selected, peer reviewed papers from the 13th international conference inter academia 2014, september 10-12, 2014, riga, latvia. The 69 papers are grouped as follows: chapter 1: solid-state physics and related technologies; chapter 2: chemical materials and chemical technologies; chapter 3: materials and technologies in biomedicine and environmental engineering; chapter 4: fibers and fabric; chapter 5: control and automation; chapter 6: signal and data processing, computational procedures; chapter 7: applied information technologies; chapter 8: product design and engineering management.
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