start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=2
article-no=
start-page=61
end-page=67
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1992
dt-pub=19920328
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Preparation of Mullite Dispersed Silica Ceramics through Sol-Gel Processing
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Mullite-dispersed silica ceramics were prepared through sol-gel processing by the use of tetraethoxy silane, aluminium nitrate and aluminium isopropoxide as the Si and Al sources where HCl and HN0(3) were the catalyst. Effect of the starting materials, solvents and catalysts was examined on the gelation time or temperature of mullite precipitation. Apparent activation energy of gelation ranged from 80 to 95kJ/mol. The presence of AI in the sols elongated the gelling time suggesting the formation of chelate bonds between AI and Si-OR or Si-OH bonds.
en-copyright=
kn-copyright=

en-aut-name=OsakaAkiyoshi
en-aut-sei=Osaka
en-aut-mei=Akiyoshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=KawabataKouji
kn-aut-sei=Kawabata
kn-aut-mei=Kouji
aut-affil-num=2
ORCID=

en-aut-name=NanbaTokuro
en-aut-sei=Nanba
en-aut-mei=Tokuro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=TakadaJun
en-aut-sei=Takada
en-aut-mei=Jun
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=MiuraYoshinari
en-aut-sei=Miura
en-aut-mei=Yoshinari
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=2
en-affil=
kn-affil=Industrial Technology Center of Okayama Prefecture

affil-num=3
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=4
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=5
en-affil=
kn-affil=Department of Applied Chemistry
END

start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=2
article-no=
start-page=139
end-page=150
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1992
dt-pub=19920328
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Scattering by a Penny-Shaped Crack Subject to Oblique Incident Waves
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Scattering problems by a penny-shaped crack are solved using a time-domain boundary integral equation method, The crack is located in an infinite homogeneous, isotropic, linearly elastic solid, and is subjected to an oblique incident wave of either P-, SV-, or SH-wave, The hypersingular integral equation is solved to obtain near-field solutions as well as scattered far-fields. The accuracy of the present method is confirmed by comparing the near-field solutions for different arrangement of elements, Scattered far-fields are calculated for various incident waves, and their usefulness in quantitative non-destructive evaluation is discussed.
en-copyright=
kn-copyright=

en-aut-name=HiroseSohichi
en-aut-sei=Hirose
en-aut-mei=Sohichi
kn-aut-name=œA�£‘sˆê
kn-aut-sei=œA�£
kn-aut-mei=‘sˆê
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Civil Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=2
article-no=
start-page=129
end-page=138
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1992
dt-pub=19920328
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Spectrum of Schottky Noise in Ion Storage Rings
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The spectrum of Schottky noise in ion storage rings is analyzed as density fluctuations in effectively one-dimensional plasmas. Strong coupling effects in these plasmas are discussed in relation to experimental observations.
en-copyright=
kn-copyright=

en-aut-name=TotsujiHiroo
en-aut-sei=Totsuji
en-aut-mei=Hiroo
kn-aut-name=“Œ’Ò�_•v
kn-aut-sei=“Œ’Ò
kn-aut-mei=�_•v
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical and Electronic Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=2
article-no=
start-page=111
end-page=128
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1992
dt-pub=19920328
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Memory Search using Genetic Algorithms and a Neural Network Model
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=An information processing task which generates combinatorial explosion and program complexity when it is treated by a serial algorithm is investigated using both Genetic Algorithms (GA) and a neural network model (NN). The task in question is to find a target memory from a set of stored entries in the form of "attractors" in a high dimensional state space. The representation of entries in the memory is distributed ("an auto associative neural network" in this paper), and the problem is to find an attractor under a given access information where the uniqueness or even existence of a solution is not always guaranteed ( an ill-posed problem ). The GA is used as an algorithm for generating a search orbit to search effectively for a state which satisfies the access condition and belongs to the target attractor basin in state space. The NN is used to retrieve the corresponding entry from the network. The results of our computer simulation indicate that the present method is superior to a search method which uses random walk in state space. Our technique may prove useful in the realization of flexible and adaptive information processing, since pattern search in high dimensional state spaces is common in various kinds of parallel information processing.
en-copyright=
kn-copyright=

en-aut-name=NaraShigetoshi
en-aut-sei=Nara
en-aut-mei=Shigetoshi
kn-aut-name=“Þ—Ç�d�r
kn-aut-sei=“Þ—Ç
kn-aut-mei=�d�r
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=BanzhafWolfgag
kn-aut-sei=Banzhaf
kn-aut-mei=Wolfgag
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=2
en-affil=
kn-affil=Central Research Laboratory, Mitsubishi Electric Corporation
END

start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=2
article-no=
start-page=93
end-page=109
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1992
dt-pub=19920328
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Transport Simulasion in a Burning Tokamak Plasma
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=A one-dimensional tokamak transport code (TASK/TR) has been developed to analyze the evolution of a burning plasma accompanied with fusion reaction. This code deals with the electrons, deuterons, tritons, thermalized ƒ¿ particles, fast ƒ¿ particles and beam ions, separately, in order to describe the dependence of the reaction rate on the ion mixture ratio. As an energy transport model, the drift wave turbulence mode is employed. The heating and current drive by the neutral beam injection as well as the pellet injection for fuelling are also included. This code is applied to a reactor-grade plasma aimed at in the ITER project. The cases of an ignited plasma and a current-driven plasma are examined. The required power for full current drive is estimated. The effect of pellet injection, both fuel and impurity ions, is also studied.
en-copyright=
kn-copyright=

en-aut-name=FukuyamaAtsushi
en-aut-sei=Fukuyama
en-aut-mei=Atsushi
kn-aut-name=•ŸŽR�~
kn-aut-sei=•ŸŽR
kn-aut-mei=�~
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=KasaiTakashi
kn-aut-sei=Kasai
kn-aut-mei=Takashi
aut-affil-num=2
ORCID=

en-aut-name=FurutaniYoichiro
en-aut-sei=Furutani
en-aut-mei=Yoichiro
kn-aut-name=ŒÃ’J—mˆê˜Y
kn-aut-sei=ŒÃ’J
kn-aut-mei=—mˆê˜Y
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=2
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=3
en-affil=
kn-affil=Department of Electrical and Electronic Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=2
article-no=
start-page=77
end-page=92
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1992
dt-pub=19920328
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=A Beam Focusing Antenna for the TE(0)n Mode High-Power Millimeter Wave
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=This paper describes a method to design an antenna to focus millimeter-wave beam generated by a gyrotron. The antenna, which has been proposed by the authors, consists of a stair-cut circular waveguide and two cylindrical reflectors; one is elliptic and the other is parabolic. Its principle is based on the geometrical optics though slightly modified to consider the diffraction effect. Results of low-power experiments agree well with the design on beam direction, beam width and the position of the focal point. At 35.5 GHz using TE(01) mode, a focused beam with half-power thickness of 13 mm x 10 mm was obtained. This type of antennas find applications to millimeter-wave scattering measurement in fusion plasma research and high- energy-density source for material heating.
en-copyright=
kn-copyright=

en-aut-name=WadaOsami
en-aut-sei=Wada
en-aut-mei=Osami
kn-aut-name=˜a“c�CŒÈ
kn-aut-sei=˜a“c
kn-aut-mei=�CŒÈ
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=NakajimaMasamitsu
kn-aut-sei=Nakajima
kn-aut-mei=Masamitsu
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=2
en-affil=
kn-affil=Department of Electronics, Kyoto University
END

start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=2
article-no=
start-page=69
end-page=75
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1992
dt-pub=19920328
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Preparation and Characterization of Ti(2)O(3) Films Deposited on Sapphire Substrate by Activated Reactive Evaporation Method
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=(001)-oriented Ti(2)O(3) films were epitaxially grown on a(001)-face of sapphire single-crystalline substrate by an activated reactive evaporation method. The formation ranges of stoichiometric and nonstoichiometric Ti(2)O(3) films were determined as a function of the substrate temperature (Ts), the oxygen pressure (Po(2)) and the deposition rate. Stoichiometric Ti(2)O(3) films were grown at Ts�†673K under Po(2)�†1.0�~10(-4)Torr, which showed the metal-insulator transition with a sharp change in electrical resistivity from 3.5�~10(-2) to 2.6�~10(-3)ƒ¶cm at 361K. Nonstoichiometric films prepared under less oxidized conditions did not exhibit the transition. The nonstoichiometry of the Ti(2)O(3)films was discussed in terms of excess Ti ions.
en-copyright=
kn-copyright=

en-aut-name=FujiiTatsuo
en-aut-sei=Fujii
en-aut-mei=Tatsuo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=SakataNaoki
kn-aut-sei=Sakata
kn-aut-mei=Naoki
aut-affil-num=2
ORCID=

en-aut-name=NanbaTokuro
en-aut-sei=Nanba
en-aut-mei=Tokuro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=OsakaAkiyoshi
en-aut-sei=Osaka
en-aut-mei=Akiyoshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=MiuraYoshinari
en-aut-sei=Miura
en-aut-mei=Yoshinari
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

en-aut-name=TakadaJun
en-aut-sei=Takada
en-aut-mei=Jun
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=2
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=3
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=4
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=5
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=6
en-affil=
kn-affil=Department of Applied Chemistry
END

start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=2
article-no=
start-page=25
end-page=41
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1992
dt-pub=19920328
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=The study on the Evaluation of Eye Movement Using Computer Program
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The eye movement has been studied widely, because it gives various information about the characteristics of visual work. Almost all of those studies have concentrated on the distribution of the visual points, the direction and width of the saccadic movement and the fixation time of the measures. However there are few measures to evaluate the relationship between the visual objects and eye movement. Recently, the personal computer become portable and this makes it possible to analyze the many data and to show the results graphically on the experimental field. In this study, we propose a series of methods to evaluate how a subject looks at a visual field using the queue theory, and how often man looks at the central part of the visual field using the statistical two-dimensional ellipse. We developed the Pascal program on an personal computer(NEC PC9800). This program has 3 functions. One is the measurement of eye movement, the second is the calculation of the proposed measures and the third is the display of the results of these calculations.
en-copyright=
kn-copyright=

en-aut-name=MatsudaMasaaki
en-aut-sei=Matsuda
en-aut-mei=Masaaki
kn-aut-name=�¼“c�³–¾
kn-aut-sei=�¼“c
kn-aut-mei=�³–¾
aut-affil-num=1
ORCID=

en-aut-name=OsakiHirokazu
en-aut-sei=Osaki
en-aut-mei=Hirokazu
kn-aut-name=‘å�è�hˆê
kn-aut-sei=‘å�è
kn-aut-mei=�hˆê
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Mechanical Engineering

affil-num=2
en-affil=
kn-affil=Department of Mechanical Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=2
article-no=
start-page=17
end-page=24
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1992
dt-pub=19920328
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Freezing of Quiescent Water in a Horizontal Cylinder
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Heat transfer measurements were conducted during freezing of quiescent water in a horizontal cylinder. A horizontal cylinder with inner diameter of 61.1 mm is cooled by air in a constant low temperature room and time variations of the radial distribution of fluid temperature were observed. Experimental results for the velocity of the phase change interface, the time taken for complete freezing and apparent freezing heat transfer coefficient were compared with the simple theoretical model based on the quasisteady assumption.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=FengYibu
kn-aut-sei=Feng
kn-aut-mei=Yibu
aut-affil-num=1
ORCID=

en-aut-name=InabaHideo
en-aut-sei=Inaba
en-aut-mei=Hideo
kn-aut-name=ˆî—t‰p’j
kn-aut-sei=ˆî—t
kn-aut-mei=‰p’j
aut-affil-num=2
ORCID=

en-aut-name=NozuShigeru
en-aut-sei=Nozu
en-aut-mei=Shigeru
kn-aut-name=–ì’ÃŽ 
kn-aut-sei=–ì’Ã
kn-aut-mei=Ž 
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Food Engineering, Heilongjiang Commercial College

affil-num=2
en-affil=
kn-affil=Department of Mechanical Engineering

affil-num=3
en-affil=
kn-affil=Department of Mechanical Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=2
article-no=
start-page=1
end-page=16
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1992
dt-pub=19920328
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Radiative Characteristics of Frost Layer in Frosting and Defrosting Processes
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Radiative characteristics of the frost layer melted by radiative heat are experimentally examined. A frost layer is heated from above by the radiative heat from a halogen lamp set. Thermal radiation of the lamp has the wavelength spectrum characteristics similar to those of the solar radiation. The effect of the environmental temperature upon the frost melting process is clarified in experiments. The optical characteristics of reflectivity, absorptivity and transmissivity of the frost layer during the melting of the frost layer are measured using special measuring instruments.
en-copyright=
kn-copyright=

en-aut-name=InabaHideo
en-aut-sei=Inaba
en-aut-mei=Hideo
kn-aut-name=ˆî—t‰p’j
kn-aut-sei=ˆî—t
kn-aut-mei=‰p’j
aut-affil-num=1
ORCID=

en-aut-name=OtakeHideo
en-aut-sei=Otake
en-aut-mei=Hideo
kn-aut-name=‘å’|�G—Y
kn-aut-sei=‘å’|
kn-aut-mei=�G—Y
aut-affil-num=2
ORCID=

en-aut-name=NozuShigeru
en-aut-sei=Nozu
en-aut-mei=Shigeru
kn-aut-name=–ì’ÃŽ 
kn-aut-sei=–ì’Ã
kn-aut-mei=Ž 
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Mechanical Engineering

affil-num=2
en-affil=
kn-affil=Graduate School of Natural Science and Technology

affil-num=3
en-affil=
kn-affil=Department of Mechanical Engineering
END