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Activities of the Japan Society for Graphic Science. Research and education

100%

Suzuki K.

tom Vol. 13

39--41

In this paper the research and educational activities of the Japan Society for Graphic Science (JSGS) will be briefly reviewed. The membership in the JSGS stands now at around 330 made of mostly individual members who are university and college instructors of graphics-related subjects. The JSGS holds nation-wide meetings twice a year, once in spring and the other in autumn. In each JSGS meeting a forum on graphics education is also held. The JSGS publishes the journal “Journal of Graphic Science of Japan” four times in a year. The JSGS also occasionally publishes books. In addition to these activities in Japan, the JSGS has been making efforts in promoting international cooperation.

Development of a new micro-MOKE magnetometer combined with magnetic domain scope

51%

Suzuki K. , Ueno H. , Takase T. , Yamaguchi K.

Przegląd Elektrotechniczny

2013

tom R. 89, nr 2b

28--31

A measurement system was developed for observation of magnetic domains and micro-MOKE on same field of vision. The system is available for measuring B-H curve at a spot with micro-scale after a confirmation of magnetic domain patterns. The measurement system has a possibility to detect the magnetization process of locally agglutinated magnetic materials buried in non-magnetic materials.

W artykule przedstawiono nowy magnetometr typu mikro-MOKE. Omawiany system ma możliwość pomiaru charakterystyki B-H w skali mikro przy ustalonej domenie magnetycznej oraz wykrywania procesu magnetyzacji w miejscowo sklejonych materiałach magnetycznych, zagrzebanych w materiałach niemagnetycznych.

Some multivariate infinitely divisible distributions and their projections

51%

Maejima M. , Suzuki K. , Tamura Y.

tom Vol. 19, Fasc. 2

421--428

Recently K. Sato constructed an infinitely divisible probability distribution μ on Rd such that μ is not selfdecomposable but every projection of μ to a lower dimensional space is selfdecomposablc. Let Lm (Rd), 1 ≤ m < ∞, be the Urbanik-Sato type nested subclasses of the class L0 (Rd) of all selfdecomposable distributions on Rd. In this paper, for each 1 ≤ m < ∞, a probability distribution μ with the following properties is constructed: μ belongs to Lm-1 (Rd) ∩ (Lm (Rd))c, but every projection of μ to a lower k-dimensional space belongs to Lm (Rk). It is also shown that Sato's example is not only "non-selfdecomposable" but also "non-semi-selfdecomposable."

Yttrium distribution in Ba-Cu-O melt during growth of superconducting material Y 123 by Czochralski method

51%

Szmyd J. S. , Gajek K. , Suzuki K.

Computer Assisted Mechanics and Engineering Sciences

2000

tom Vol. 7, No. 3

377-390

Numerical computations of the yttrium distribution in the BaO-CuO melt were performed for the single crystal growth of yttrium barium copper oxide superconductor (YBa_2Cu_3O_(7-x)) with the Czochralski method. The finite volume method was used to calculate the fluid flow, heat transfer and yttrium distribution in the melt with staggered numerical grid. The flow in the melt was assumed to be axisymmetric and was modelled as an incompressible Newtonian, Boussinesque fluid. Mass transfer was due to both convection and diffusion. Calculations were presented for a buoyancy/crystal-rotation driven combined convective flow.

Increase in cortisol awakening response after two weeks of self-instruction for good sleep

38%

Nomura S. , Suguri K. , Okamoto Y. , Nomura T. , Suzuki K. , Tanaka H.

2010

tom Vol. 15

169--175

There is growing evidence suggesting that the magnitude of cortisol awaking response (CAR), which is characterized by a profound increase of salivary cortisol secretion after awakening, plausibly reflects the level of a chronic stress, social stress, anxiety, etc. In this study the alternation of CAR at the start and at the end of two weeks session of self-instruction for good sleep was investigated; by which we anticipated that the self-instruction for good sleep would bring-forth a positive affection for the participants, and would result in decline of cortisol awakening response (CAR). Nevertheless, as a result unexpectedly, subjects did not change their sleep and dietary habits along with the instruction, moreover the increased CAR was observed. This result implies that the suggestion of an impractical instruction would solely be taken as a stressful task for participants, even though they know that it is effective to improve their sleep. On the contrary, if one develops an instruction with practicable indication for daily life, it is highly possible to observe a positive effect of the instruction on CAR.