start-ver=1.4
cd-journal=joma
no-vol=27
cd-vols=
no-issue=1
article-no=
start-page=93
end-page=105
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1992
dt-pub=19921125
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Advection Dispersion by Eulerian Lagrangian Finite Element Method
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In this paper the author will be describe phenomena of advection dispersion in subsurface flow by using Eulerian Lagrangian Finite Element Method. Where Finite Element Method with Galerkin formulation and weigthed residual method is used to solve seepage and advection dispersion equation. The problem of one dimensional and two dimensional rectangular wave are analyzed in this paper. And the result of numerical analyses will be compared with analytical solutions. The numerical results showed the very good agreement with the analytical solutions.
en-copyright=
kn-copyright=

en-aut-name=NishigakiMakoto
en-aut-sei=Nishigaki
en-aut-mei=Makoto
kn-aut-name=西垣誠
kn-aut-sei=西垣
kn-aut-mei=誠
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=SudindaTeddy
kn-aut-sei=Sudinda
kn-aut-mei=Teddy
aut-affil-num=2
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=HishiyaTomoyuki
kn-aut-sei=Hishiya
kn-aut-mei=Tomoyuki
aut-affil-num=3
ORCID=

en-aut-name=KohnoIchiro
en-aut-sei=Kohno
en-aut-mei=Ichiro
kn-aut-name=河野伊一郎
kn-aut-sei=河野
kn-aut-mei=伊一郎
aut-affil-num=4
ORCID=

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

affil-num=2
en-affil=
kn-affil=Graduate Student in Department of Civil Engineering

affil-num=3
en-affil=
kn-affil=D I A Consultant

affil-num=4
en-affil=
kn-affil=Department of Civil Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=27
cd-vols=
no-issue=1
article-no=
start-page=81
end-page=92
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1992
dt-pub=19921125
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=The Impact of JR Seto Ohashi Line on Residential Land Value
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=This paper aims to examine the impact of JR (Japan Railways) Seto Ohashi Line on residential land value. First, the study examines the trends in land value in the area along JR Seto Ohashi Line by applying the area comparison method. The method estimates the effect of JR Seto Ohashi Line on residential land value by comparing land values between the study area and the Okayama Metropolitan Area. Second, the property value method is applied to measure the effect of railroad construction. The effect is estimated with a residential land-value regression, which is calibrated using land value data along the Seto Ohashi Line. Finally, the results are compared with the empirical studies in the Greater Tokyo Region, and various features of the impact of railroad construction on land value are identified.
en-copyright=
kn-copyright=

en-aut-name=AbeHirofumi
en-aut-sei=Abe
en-aut-mei=Hirofumi
kn-aut-name=阿部宏史
kn-aut-sei=阿部
kn-aut-mei=宏史
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=27
cd-vols=
no-issue=1
article-no=
start-page=65
end-page=79
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1992
dt-pub=19921125
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Electronic States and Electron Wave Transfer in Coupled Quantum Wires and Its Control by Externally Applied Electric Field
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Quantum mechnical electron wave transfer between two quantum wires which are weakly coupled via a thin potential barrier is considered. The total electronic states are calculated with both analytical ( no field case ) and numerical methods ( under applied electric fields ). The transfer efficiency is evaluated for several specified cases of geometrical structures, potential barrier heights and the externally applied electric field. Estimated trasfer time is of the order of one picosecond in typical mesoscopic structures. The model in this paper can be used to determine important structure parameters for experiments on electron directional coupler controled by external elctric field.
en-copyright=
kn-copyright=

en-aut-name=NaraShigetoshi
en-aut-sei=Nara
en-aut-mei=Shigetoshi
kn-aut-name=奈良重俊
kn-aut-sei=奈良
kn-aut-mei=重俊
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=HaraYuji
kn-aut-sei=Hara
kn-aut-mei=Yuji
aut-affil-num=2
ORCID=

en-aut-name=TotsujiHiroo
en-aut-sei=Totsuji
en-aut-mei=Hiroo
kn-aut-name=東辻浩夫
kn-aut-sei=東辻
kn-aut-mei=浩夫
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=Sharp Corporation

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

start-ver=1.4
cd-journal=joma
no-vol=27
cd-vols=
no-issue=1
article-no=
start-page=55
end-page=64
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1992
dt-pub=19921125
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Intrinsic Bistability of Coupled Quantum Wires: Localization due to Many-Body Effects
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The ground state of a system of electrons accumulated in a pair of coupled symmetric quantum wires is analyzed on the basis of density functional theory. It is shown that, in a domain of physical parameters, electrons are localized in either of wires. The main contribution to the total energy of this system comes from the Hartree energy, or the electrostatic energy, and the exchange-correlation energy between electrons. The ground state is determined by a competition between these contributions: We have symmetric electron distributions when the Hartree energy dominates and asymmetric (localized) states are realized in the opposite case. This kind of simple system with bistable electronic states may be applied to semiconductor memory devices.
en-copyright=
kn-copyright=

en-aut-name=TotsujiHiroo
en-aut-sei=Totsuji
en-aut-mei=Hiroo
kn-aut-name=東辻浩夫
kn-aut-sei=東辻
kn-aut-mei=浩夫
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=TachibanaHiroyuki
kn-aut-sei=Tachibana
kn-aut-mei=Hiroyuki
aut-affil-num=2
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=HashimotoSeiji
kn-aut-sei=Hashimoto
kn-aut-mei=Seiji
aut-affil-num=3
ORCID=

en-aut-name=NaraShigetoshi
en-aut-sei=Nara
en-aut-mei=Shigetoshi
kn-aut-name=奈良重俊
kn-aut-sei=奈良
kn-aut-mei=重俊
aut-affil-num=4
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

affil-num=4
en-affil=
kn-affil=Department of Electrical and Electronic Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=27
cd-vols=
no-issue=1
article-no=
start-page=45
end-page=53
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1992
dt-pub=19921125
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Measurement of Methane Concentration in a Rice Paddy Field with a Tunable Diode Laser Absorption Spectrometry
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=A prototype device based on the tunable diode laser absorption spectrometry was constructed and the atmospheric methane concentration near the terrain in a rice paddy field was measured. An open optical path of 50 m length was employed along with a PbSnTe diode laser. Diurnal change of methane density with 30 seconds temporal resolution was recorded associated with meteorological parameters. A feasibility was proven for a practical application for in situ study of atmospheric methane.
en-copyright=
kn-copyright=

en-aut-name=KagawaNaoki
en-aut-sei=Kagawa
en-aut-mei=Naoki
kn-aut-name=香川直己
kn-aut-sei=香川
kn-aut-mei=直己
aut-affil-num=1
ORCID=

en-aut-name=WadaOsami
en-aut-sei=Wada
en-aut-mei=Osami
kn-aut-name=和田修己
kn-aut-sei=和田
kn-aut-mei=修己
aut-affil-num=2
ORCID=

en-aut-name=HaiXu
en-aut-sei=Hai
en-aut-mei=Xu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=KogaRyuji
en-aut-sei=Koga
en-aut-mei=Ryuji
kn-aut-name=古賀隆治
kn-aut-sei=古賀
kn-aut-mei=隆治
aut-affil-num=4
ORCID=

en-aut-name=SanoHiroya
en-aut-sei=Sano
en-aut-mei=Hiroya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

en-aut-name=InubushiKazuyuki
en-aut-sei=Inubushi
en-aut-mei=Kazuyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=

affil-num=1
en-affil=
kn-affil=The Graduate School of Natural Science and Technology

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

affil-num=3
en-affil=
kn-affil=Measurement and Test Center, North-East Normal University

affil-num=4
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=5
en-affil=
kn-affil=Faculty of Engineering, Fukuyama University

affil-num=6
en-affil=
kn-affil=Faculty of Bioresource, Mie University
END

start-ver=1.4
cd-journal=joma
no-vol=27
cd-vols=
no-issue=1
article-no=
start-page=33
end-page=44
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1992
dt-pub=19921125
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Process Fault Diagnosis using Neural Networks and Fault Tree Analysis Information
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Neural nets have recently become the focus of much attention, largely because of their wide range of complex and nonlinear problems. This paper presents a new integrated approach using neural networks for diagnosing process failures. The fault propagation in process is modeled by causal relationships from the fault tree and its minimal cut sets. The measurement patterns required for training and testing the neural network were obtained from fault propagation model. The network is able to diagnose even in the presence of malfunction of certain sensors. We demonstrate via a nitric acid cooler process how the neural network can learn and successfully diagnose the faults.
en-copyright=
kn-copyright=

en-aut-name=ShimadaYukiyasu
en-aut-sei=Shimada
en-aut-mei=Yukiyasu
kn-aut-name=島田行恭
kn-aut-sei=島田
kn-aut-mei=行恭
aut-affil-num=1
ORCID=

en-aut-name=SuzukiKazuhiko
en-aut-sei=Suzuki
en-aut-mei=Kazuhiko
kn-aut-name=鈴木和彦
kn-aut-sei=鈴木
kn-aut-mei=和彦
aut-affil-num=2
ORCID=

en-aut-name=SayamaHayatoshi
en-aut-sei=Sayama
en-aut-mei=Hayatoshi
kn-aut-name=佐山隼敏
kn-aut-sei=佐山
kn-aut-mei=隼敏
aut-affil-num=3
ORCID=

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

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=27
cd-vols=
no-issue=1
article-no=
start-page=27
end-page=32
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1992
dt-pub=19921125
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Heat Transfer Characteristics of Two Phase Closed Thermosiphon for Geothermal Energy (2nd Report: Heat Transfer Behavior on Site)
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Heating and refrigerating technique such as snow melting of road and cold storage by utilizing temperature difference between underground soil and atmosphere is widely used[1-4] in a cold area. In the 1st Report, heat transfer characteristics of two phase closed thermosiphon for extracting geothermal energy is studied fundamentally. In the empirical study, heat extract rate is measured in connection with the change of atmospheric temperature utilizing real two thermosiphons on the site. Temperature distribution on the surface of the thermosiphon and underground soil around it is also measured. Based on the data of the empirical experiment, it is confirmed that prevention of freezing for fire hydrant can be achieved by geothermal heat utilizing two phase closed thermosiphon. Present paper describes the heat transfer behavior of the thermosiphon as the 2nd report.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=HirashimaMasao
kn-aut-sei=Hirashima
kn-aut-mei=Masao
aut-affil-num=1
ORCID=

en-aut-name=InabaHideo
en-aut-sei=Inaba
en-aut-mei=Hideo
kn-aut-name=稲葉英男
kn-aut-sei=稲葉
kn-aut-mei=英男
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Mitsui. Metal Engineering &Service Co., Ltd.

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

start-ver=1.4
cd-journal=joma
no-vol=27
cd-vols=
no-issue=1
article-no=
start-page=11
end-page=26
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1992
dt-pub=19921125
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Heat Transfer Characteristics of Two Phase ClosedThermosiphon for Geothermal Energy (1st Report: Measurement on Heat Transfer Coefficient)
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=To prevent freezing of road and aquaduct by extracting geothermal heat with two phase closed thermosiphon has been widely used in a cold area. Both heat transfer characteristics in the underground soil and function of the thermosiphon to extract geothermal heat have to be made clear for the purpose of the above system. This study is directed for the purpose to prevent freezing of fire hydrant and composed of the fundamental experiment and the empirical experiment. In the fundamental study, heat transfer behavior is studied experimentally in the small size filling bath representing the underground soil layer. After recording temperature distribution, heat transfer coefficient is measured, they are proceeded into the correlation between the dimensionless number of Nusselt, Rayleigh and Fourier. The fundamental study is described as the first report.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=HirashimaMasao
kn-aut-sei=Hirashima
kn-aut-mei=Masao
aut-affil-num=1
ORCID=

en-aut-name=InabaHideo
en-aut-sei=Inaba
en-aut-mei=Hideo
kn-aut-name=稲葉英男
kn-aut-sei=稲葉
kn-aut-mei=英男
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Mitsui. Metal Engineering &Service Co., Ltd.

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

start-ver=1.4
cd-journal=joma
no-vol=27
cd-vols=
no-issue=1
article-no=
start-page=1
end-page=10
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1992
dt-pub=19921125
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Direct Patterning of Ceramic Circuit Board with Q-Switched Nd:YAG Laser
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Direct patterning of copper coated ceramic circuit board is experimentally investigated with Q-switched Nd:YAG laser in order to shorten the time of the trial manufacture of electronic circuit board and to adapt the flexible design change. It is pointed out that the fast direct patterning the speed of which reaches about 100 mm/s is possible if the repetition frequency and the average power are selected properly. Furthermore cutting off and/or drilling of ceramic board are also possible under the condition that the repetition frequency is less than 3kHz. This technique makes it possible the mask1ess patterning of ceramic circuit board which has been widely used recently in place of conventional glass-epoxy or phenolic resin circuit board, and it leads to the shorter time limit of delivery as compared with the conventional end-milling method.
en-copyright=
kn-copyright=

en-aut-name=UnoYoshiyuki
en-aut-sei=Uno
en-aut-mei=Yoshiyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=KubotaShin-ichiro
en-aut-sei=Kubota
en-aut-mei=Shin-ichiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=NakajimaToshikatsu
en-aut-sei=Nakajima
en-aut-mei=Toshikatsu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=OgataKojiro
en-aut-sei=Ogata
en-aut-mei=Kojiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=TadaNobuhiko
en-aut-sei=Tada
en-aut-mei=Nobuhiko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

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

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

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

affil-num=4
en-affil=
kn-affil=Hitachi Construction Machinery Co., Ltd.

affil-num=5
en-affil=
kn-affil=Hitachi Construction Machinery Co., Ltd.
END