AY2008 2nd Gakuyugo Seminar
- Date&Time:
- May 28, 2008 17:30 - 19:00
- Venue:
- Large Lecture Room (2C0), New Frontier Science Bldg.
Images of Academic Fusion - Swords, Quasicrystals, and Bond Conversion
Professor Kaoru Kimura
The comparison of the two disciplines and speaking in the language of the other discipline will create a new perception (academic fusion). A comparison of kendo and fencing and a description of human biology will highlight the differences in sword-using techniques between East and West. The comparison of crystalline and amorphous solids and the solution of a mathematical puzzle to explain the structure of a new material created by metallurgy gave rise to the new concept of quasicrystals. A unified picture of icosahedral cluster solids was constructed for a group of materials that had been studied in the fields of metals and semiconductors, respectively, and a metallic bond-covalent bond conversion was proposed. We show that the experimental results in real space, which are evidence of this, give rise to different perceptions from those in k-space and energy space. The former may be an intuitive perception by the right brain, and the latter may be a logical perception by the left brain. I hope that a new academic fusion will be created by understanding that physics is created in cooperation with these two perceptions.
New Protein Cross-linking Technology Explored from Insect Skin
Professor Haruhiko Fujiwara
Insect skin is formed by the cross-linking of dozens of different proteins secreted from the body during each molt. Insect skin is the "ultimate biomaterial" that protects against desiccation and infection, and its composition varies depending on the insect species and adaptive environment. We have discovered that insect skin proteins contain a repetitive amino acid sequence called GGYGG. When peptides and proteins containing GGYGG were synthesized and reacted with oxidases such as tyrosinase, specific Y-Y cross-links were generated. This technology can be used to develop protein chips and other products. This technology may be applied to protein chips, bioreactors, and the development of new protein materials.
on-demand integrated transportation system
Professor Hiroyuki Yamato
Public transportation has been based on the premise of being on time and on route. However, with the recent widespread use of cell phones and other means of communication between the transportation system and the individual, it is possible to grasp dynamic transportation demand and provide transportation systems such as buses, bicycles, and cabs according to the individual's lifestyle. This is one of the technological means to realize a mobility society that is comfortable and has a low environmental impact. The results of a social experiment conducted by our laboratory in Kashiwa-no-ha will also be presented.
*The contents of this page were developed based on a machine translation.