Topics - e-Bulletin
University of Electro-Communications publishes June 2015 issue of e-Bulletin:
The June 2015 issue of the University of Electro-Communications e- Bulletin includes research highlights on advanced wireless and communications; exotic chemistry processes in the formation of star; insights into electron transport in the semi-metal, bismuth; mathematical approach to deciphering noisy observations using multiterminal source coding; physics of light-matter interaction on the atomic scale; and the findings of an information technology based approach for the analysis of onomatopoeia.
Feature article
Advanced Wireless and Communication Research Center (AWCC), University of Electro-Communications, Tokyo.
http://www.ru.uec.ac.jp/e-bulletin/feature/2015/awcc.html
The Advanced Wireless Communication Research Center (AWCC) was launched in April 2005 with the aims of establishing a global hub for wireless communications; advancing education in wireless technology; industrial collaboration and technology transfer; and nurturing young engineers with strong emphasis on both theoretical and experimental aspects of wireless communications.
Research Highlights
Star formation: Exotic chemistry
http://www.ru.uec.ac.jp/e-bulletin/research-highlights/2015/exotic-chemistry.html
Stars are born in the dense and cold regions of the interstellar medium, where the conditions are just right for the formation of the first very simple and slightly more complex molecules. These stellar nurseries are called molecular clouds and the chemical reactions that take place there are key to the early stages in star formation. To understand this exotic astrochemistry Takeshi Sakai and collaborators in Japan and the US used the data from Atacama Large Millimeter/submillimeter Array (ALMA) to look at the spectral lines of certain molecules that provide clues about the physical conditions in the active star-forming regions just before star birth.
Physics of semi-metals: Insights into electron transport in bismuth
Bismuth is a semi-metal which, in crystal form, exhibits unusual but important properties such as large 'diamagnetism', which stems from particular electronic states. These peculiarities can be exploited to create new spintronics and optical devices, yet the exact mechanisms behind electron transport and behavior in bismuth are not yet fully understood.
Multiterminal source coding: deciphering noisy observations
http://www.ru.uec.ac.jp/e-bulletin/research-highlights/2015/deciphering-noisy-observations.html
Determining information of an event from a number of remote noisy observations poses a problem that has interested mathematicians since the 1970s. Active research on the topic has led to a proven theorem of tolerance boundaries for reconstructing the original source from indirect observations.
News and Events
MMR 2015, Tokyo
http://www.ru.uec.ac.jp/e-bulletin/news/2015/mmr-2015-tokyo.html
Visit to UEC by International College, King Mongkut's Institute of Technology Ladkrabang (KMITL), Bangkok
http://www.ru.uec.ac.jp/e-bulletin/news/2015/ic-kmitl-201505.html
UEC holds first joint seminar in Vietnam
http://www.ru.uec.ac.jp/e-bulletin/news/2015/uec-holds-first-joint-seminar-in-vietnam.html
Topics
Theoretical atomic, molecular, and optical physics: Insights into light-matter interaction on the atomic scale
The beautiful colors of the rainbow are an everyday example of the results of light interacting with matter--sunlight with raindrops. Similar examples of light interacting with materials includes spectra produced by prisms and the deep orange and red hues of sunsets. The physics of these macroscopic light-matter interactions is well understood in terms of classical theories of the wave nature of light. But the interaction of ultra-short intense laser pulses with atoms and molecules such as hydrogen, helium, and carbon oxide is a new area of active research.
Frontiers of interdisciplinary research: Information technology to analyze onomatopoeia
http://www.ru.uec.ac.jp/e-bulletin/topics/2015/information-technology-to-analyze-onomatopoeia.html
"Onomatopoeias are powerful sounds used by writers to convey feeling, sensation, and intimacy as they paint their pages with words. It would not be an overstatement to say that the Japanese language has an even larger selection of diverse and rich 'sound devices' than their equivalents in English. Heavy rain and lightning is "zah-zah" and "goro-goro"; pain is "zuku-zuku" or "chiku-chiku"; and glitter and sparkle is "kira-kira".
Letter from Alumni
http://www.ru.uec.ac.jp/e-bulletin/topics/2015/letter-from-alumni-6.html
Tran Xuan Nam, Associate Professor and Vice Dean, Faculty of Radio-Electronics, Le Quy Don Technical University, Hanoi, Vietnam.