The June 2014 issue of the University of Electro-Communications e-Bulletin includes research highlights on Raman scattering for laser optical communications; fuzzy control systems; optical signal processing; pharmacophores and future of drug discovery; hybrid dye solar cells.
Source: International Public Relations, University of Electro-Communications, Tokyo
Ultrashort pulses of light produced by Raman scattering from hydrogen for next generation laser optical communications
Frontiers of optical science: Ultrashort pulses of light produced by Raman scattering from hydrogen for next generation laser optical communications
Masayuki Katsuragawa describes his research on the manipulation of light-matter interaction for producing ultra-short pulses of laser light. “Our recent experiments on adiabatic stimulated Raman scattering in parahydrogen show potential for the realization of laser light sources producing pulses at terahertz repetition-rate frequencies. These ultra-short pulses offer a new 'axis' in the evolution of laser based optical science."
Control systems: Fuzzy features
The natural world is not always logical, and precise states such as 'true' or 'false' are quite rare. The field of fuzzy logic takes account of this fact by creating models in which truth is represented on a continuous scale between 0 and 1. Mathematical control systems based on fuzzy logic have proved useful for real-world situations such as handwriting recognition on pocket computers, auto-focusing on cameras, and earthquake prediction. Kazuo Tanaka and colleagues at the University of Electro-Communications in Tokyo, with co-workers at Kyushu Institute of Technology and Boston University, USA, have used a sum-of-squares approach to design effective observers within three classes of T-S fuzzy systems.
Optical signal processing: Neater networks
The demand for fast access to data through optical networks requires technology that can handle ever more complex and high-bandwidth signals. However, the signal processing usually requires conversions from optical to electronic and back again, which can be power-hungry and expensive.
Now, Hung Nguyen Tan, Motoharu Matsuura and Naoto Kishi at the University of Electro-Communications in Tokyo have built an optical switching device that not only performs WDM, but also processes signals with different data formats, and convert signals between formats.
Pharmacophores: The future of drug discovery
Developing new drugs that bind exclusively to target cells in diseases such as cancer is crucial. Masumi Taki and co-workers at the University of Electro-Communications in Tokyo, together with scientists at Kagoshima University, Japan, have expanded on current drug discovery methods to create a hybrid-drug generating system for this purpose. Their system uses 'artificial-molecule evolution'- taking non-natural core molecules and adapting and optimizing them to make new 'pharmacophores'. A pharmacophore is a molecular model which can be manipulated to bind molecules for targets such as cancer cells.
Hybrid solar cells: The Mechanism of dyeing for greater efficiency
Light-harvesting organic materials have the potential to provide low cost electricity through solar power. However, current designs for organic-inorganic hybrid solar cells (OIHSCs) suffer weaknesses at the interface between organic and inorganic components and this limits efficiency. Now, Qing Shen at the University of Electro-Communications, Tokyo, and Shuzi Hayase at Kyushu Institute of Technology together with scientists in Hayase JST CREST Research Team across Japan, have succeeded in clarifying the mechanism for improving the performance of an OIHSC by adding a dye sensitizer directly onto the organic-inorganic interface.
International Public Relations
The University of Electro-Communications
1-5-1 Chofugaoka, Chofu, Tokyo 182-8585
About The University of Electro-Communications
The University of Electro-Communications (UEC) in Tokyo is a small, luminous university at the forefront of applied sciences, engineering, and technology research. Its roots go back to the Technical Institute for Wireless Commutations, which was established in 1918 by the Wireless Association to train so-called wireless engineers in maritime communications in response to the Titanic disaster in 1912. In 1949, the UEC was established as a national university by the Japanese Ministry of Education, and moved in 1957 from Meguro to its current Chofu campus Tokyo. With approximately 4,000 students and 350 faculty, UEC is regarded as a small university, but with particular expertise in wireless communications, laser science, robotics, informatics, and material science, to name just a few areas of research. The UEC was selected for the Ministry of Education, Culture, Sports, Science and Technology (MEXT) Program for Promoting the Enhancement of Research Universities as a result of its strengths in three main areas: optics and photonics research, where we are number one for the number of joint publications with foreign researchers; wireless communications, which reflects our roots; and materials-based research, particularly on fuel cells.
Adarsh Sandhu | Research SEA News
Piggyback battery for microchips: TU Graz researchers develop new battery concept
17.08.2016 | Technische Universität Graz
Lithium-ion batteries: Capacity might be increased by 6 times
09.08.2016 | Helmholtz-Zentrum Berlin für Materialien und Energie
Waveguides are widely used for filtering, confining, guiding, coupling or splitting beams of visible light. However, creating waveguides that could do the same for X-rays has posed tremendous challenges in fabrication, so they are still only in an early stage of development.
In the latest issue of Acta Crystallographica Section A: Foundations and Advances , Sarah Hoffmann-Urlaub and Tim Salditt report the fabrication and testing of...
Electrochemists at TU Graz have managed to use monocrystalline semiconductor silicon as an active storage electrode in lithium batteries. This enables an integrated power supply to be made for microchips with a rechargeable battery.
Small electrical gadgets, such as mobile phones, tablets or notebooks, are indispensable accompaniments of everyday life. Integrated circuits in the interiors...
Recent findings indicating the possible discovery of a previously unknown subatomic particle may be evidence of a fifth fundamental force of nature, according...
A nanocrystalline material that rapidly makes white light out of blue light has been developed by KAUST researchers.
Malignant cancer cells not only proliferate faster than most body cells. They are also more dependent on the most important cellular garbage disposal unit, the proteasome, which degrades defective proteins. Therapies for some types of cancer exploit this dependence: Patients are treated with inhibitors, which block the proteasome. The ensuing pile-up of junk overwhelms the cancer cell, ultimately killing it. Scientists have now succeeded in determining the human proteasome’s 3D structure in unprecedented detail and have deciphered the mechanism by which inhibitors block the proteasome. Their results will pave the way to develop more effective proteasome inhibitors for cancer therapy.
In order to understand how cellular machines such as the proteasome work, it is essential to determine their three-dimensional structure in detail. With its...
12.08.2016 | Event News
02.08.2016 | Event News
29.07.2016 | Event News
23.08.2016 | Information Technology
23.08.2016 | Life Sciences
23.08.2016 | Earth Sciences