start-ver=1.4
cd-journal=joma
no-vol=25
cd-vols=
no-issue=1
article-no=
start-page=99
end-page=109
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1990
dt-pub=19901214
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Determining Hydraulic Properties of Multilayered Aquifers from Pumping Test Data by Parameter Estimation
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In this paper, a numerical procedure of determining hydraulic properties in multilayered aquifers are presented. From pumping test data in multilayered aquifers, the coefficient of permeability and specific storage for each aquifer are determined by using a combination of finite element analysis and nonlinear least-squares optimization technique. This study especially points out necessity of stress-flow coupling analysis to explain the behaviors of pressure head in multilayered aquifer during pumping test. As a example, practical pumping test data were evaluate and the coefficients of permeability and specific storage of aquifers and aquitard were obtained.
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=TakeshitaYuji
en-aut-sei=Takeshita
en-aut-mei=Yuji
kn-aut-name=竹下祐二
kn-aut-sei=竹下
kn-aut-mei=祐二
aut-affil-num=2
ORCID=

en-aut-name=KonoIichiro
en-aut-sei=Kono
en-aut-mei=Iichiro
kn-aut-name=河野伊一郎
kn-aut-sei=河野
kn-aut-mei=伊一郎
aut-affil-num=3
ORCID=

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

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

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

start-ver=1.4
cd-journal=joma
no-vol=25
cd-vols=
no-issue=1
article-no=
start-page=89
end-page=98
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1990
dt-pub=19901214
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=The Structure of Interregional Migration in Japanese Regions : An Application of Multidimensional Scaling
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Multidimensional scaling (MDS) has been used in a wide variety of research fields; psychology, political science, anthropology, marketing research, urban and regional planning, and so on. In practical terms, MDS is a statistical method to make a picture of the information in the data. It enables us to examine the "hidden structure" of a set of data. When the set of data is large, MDS is extremely useful, since it is easier and more informative to look at a picture than the data themselves. In this paper, MDS is applied to the interregional migration data of Japanese regions for the years 1960-85. Findings show that the two-dimensional configuration of regions estimated by MDS generally corresponds with the geographical locations of regions, and the structure of interregional migration was very stable over the study years 1960-85. It is also suggested that MDS is a useful tool to identify the relationships between regions using the spatial interaction data.
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=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=OishiManabu
kn-aut-sei=Oishi
kn-aut-mei=Manabu
aut-affil-num=2
ORCID=

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

affil-num=2
en-affil=
kn-affil=Japan Freight Railway Company
END

start-ver=1.4
cd-journal=joma
no-vol=25
cd-vols=
no-issue=1
article-no=
start-page=71
end-page=87
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1990
dt-pub=19901214
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Optimal Pricing and Planning of Urban Expressway System
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=A transportation planning way of approach is applied to optimal pricing and planning of urban expressway network. Two kinds of network are investigated ; four radials with one ring system and four radials with two rings system. The model is composed of three submodels ; road systell, trip generation-attraction and traffic diversion. Some iaplicative aspects are shown of the optimal solutions that maximize the aggregate number of the trips diverted to expressway under constraints ; equilibrium of revenue and expenditure and traffic capacity constraint. (1) traffic flow has the peaks at junctions on radial expressway that are adjusted to be equal to the traffic capacity. (2) two rings system realizes the larger aggregate number of diverted trips by lower toll rate than one ring system does. (3) well-located second ring has a remarkable effect on improvement in accessibility to expressway and (4) some parameters in the model have curious effects on the optimal system.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=MyojinSho
kn-aut-sei=Myojin
kn-aut-mei=Sho
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=YamadaMasahito
kn-aut-sei=Yamada
kn-aut-mei=Masahito
aut-affil-num=2
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=FujiiNaoto
kn-aut-sei=Fujii
kn-aut-mei=Naoto
aut-affil-num=3
ORCID=

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

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

affil-num=3
en-affil=
kn-affil=ONRON Co., Ltd.
END

start-ver=1.4
cd-journal=joma
no-vol=25
cd-vols=
no-issue=1
article-no=
start-page=59
end-page=69
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1990
dt-pub=19901214
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Pumping Test for Multilayered Aquifers
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In this paper, we propose a method to determine the coefficients of permeability of the unconfined aquifer consisted of two different permeability layers. With mixing the conventional pumping test and falling head permeability test, the coefficients of permeabilitiy k(1) and k(2) were obtained. The validity of the proposed method is investigated by using the numerical simulation. As the results, it becomes apparent that the proposed method is applicable to real hydarulic problems.
en-copyright=
kn-copyright=

en-aut-name=KohnoIichiro
en-aut-sei=Kohno
en-aut-mei=Iichiro
kn-aut-name=河野伊一郎
kn-aut-sei=河野
kn-aut-mei=伊一郎
aut-affil-num=1
ORCID=

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=2
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=OkadaJunji
kn-aut-sei=Okada
kn-aut-mei=Junji
aut-affil-num=3
ORCID=

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

affil-num=2
en-affil=
kn-affil=Department of Civil engineering

affil-num=3
en-affil=
kn-affil=Nakaboli Soil Corner Co. Ltd.
END

start-ver=1.4
cd-journal=joma
no-vol=25
cd-vols=
no-issue=1
article-no=
start-page=51
end-page=57
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1990
dt-pub=19901214
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Superconductivity Proximity Effect in Inhomogeneous Media
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The superconductivity proximity effect in the dirty limit is revisited and equations and boundary conditions are obtained for the case of inhomogeneous media with continuously varying characteristic parameters.
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=

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

start-ver=1.4
cd-journal=joma
no-vol=25
cd-vols=
no-issue=1
article-no=
start-page=37
end-page=50
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1990
dt-pub=19901214
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Second Harmonic Detection of Atmospheric Trace Gases with a Train-Pulse Driven Lead-Salt Tunable Diode Laser for an Operation at Peltier Cooling Temperature
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Is proposed a tunable diode laser absorption spectrometer system which employs a pulsed current to drive the diode laser still implementing a second-harmonic detection methods enhancing a signal to noise up to 104 times that the case without it. This system affords the lead-salt diode laser a higher operating temperature which allows a more compact deep cooling system. A principle is based on employing a gated integrator between the preamplifier and the lock-in amplifier. Investigations are made on the optimum selection of the gating aperture time interval as determined by response time of the infrared detector and the pulse width of the laser driving current.
en-copyright=
kn-copyright=

en-aut-name=BouzidiMoncef
en-aut-sei=Bouzidi
en-aut-mei=Moncef
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
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=2
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=3
ORCID=

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=4
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=5
ORCID=

en-aut-name=KosakaMegumi
en-aut-sei=Kosaka
en-aut-mei=Megumi
kn-aut-name=小坂恵
kn-aut-sei=小坂
kn-aut-mei=恵
aut-affil-num=6
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=7
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=Department of Electrical and Electronic Engineering

affil-num=4
en-affil=
kn-affil=The Graduate School of Natural Science and Technology

affil-num=5
en-affil=
kn-affil=Measurement and Test Center, North-East Normal University

affil-num=6
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=7
en-affil=
kn-affil=Faculty of Engineering, Fukuyama University
END

start-ver=1.4
cd-journal=joma
no-vol=25
cd-vols=
no-issue=1
article-no=
start-page=23
end-page=35
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1990
dt-pub=19901214
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Preparation of ZnO Films by Activated Reactive Evaporation Method
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Zinc oxide films were prepared on silica glass substrates by the use of an r.f. activated reactive evaporation (ARE) method, and were examined by X-ray diffraction (XRD) and scanning electron micrograph (SEM). XRD measurements indicate that the films were c-axis oriented and that an r.f. plasma of Zn and O was necessary for the ZnO film deposition. Substrate temperature, oxygen gas pressure, evaporation rate, r.f. power and inlet position of oxygen gas effect the c-axis orientation, the growth rate and the microstructure of the films. Optimum conditions for a dense film with a fine texture of the surface and having good crystallinity were as follows: the substrate temperature;400℃, the evaporation rate;5.0(A)/s, the oxygen pressure;2.0x10(-4) Torr, the r.f. power;150 to 200W, and the oxygen gas inlet near the substrate. For the film prepared under the optimum conditions, the standard deviation　σ　of the rocking curve for the (002) diffraction was 1.9deg, smaller than that of the film prepared by using an r.f. sputtering method.
en-copyright=
kn-copyright=

en-aut-name=MiuraYoshinari
en-aut-sei=Miura
en-aut-mei=Yoshinari
kn-aut-name=三浦嘉也
kn-aut-sei=三浦
kn-aut-mei=嘉也
aut-affil-num=1
ORCID=

en-aut-name=TakadaJun
en-aut-sei=Takada
en-aut-mei=Jun
kn-aut-name=高田潤
kn-aut-sei=高田
kn-aut-mei=潤
aut-affil-num=2
ORCID=

en-aut-name=OsakaAkiyoshi
en-aut-sei=Osaka
en-aut-mei=Akiyoshi
kn-aut-name=尾坂明義
kn-aut-sei=尾坂
kn-aut-mei=明義
aut-affil-num=3
ORCID=

en-aut-name=KawamuraToshio
en-aut-sei=Kawamura
en-aut-mei=Toshio
kn-aut-name=河村利夫
kn-aut-sei=河村
kn-aut-mei=利夫
aut-affil-num=4
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
END

start-ver=1.4
cd-journal=joma
no-vol=25
cd-vols=
no-issue=1
article-no=
start-page=15
end-page=21
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1990
dt-pub=19901214
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Effect of Quenching Condition on the Growth of GP Zones in Al-lmass % Ag Alloy
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Aging of Al-lmass % Ag alloy at 273K after quenching under various conditions was studied by measurement of electrical resistivity. Scattering of the quasi-equilibrium value of resistivity (p(e)) was not random but closely related to the as-quenched value (p(o)); P(e) increased with increasing p(o)' When the quenching temperature (T(q)) was lower than or equal to 773K, the state at p(e) was controlled substantially by the concentration of quenched vacancy. On the other hand, when T(q)>823K, GP zones formed during quenching played an important role, instead of quenched vacancies, in determining the state.
en-copyright=
kn-copyright=

en-aut-name=SakakibaraAkira
en-aut-sei=Sakakibara
en-aut-mei=Akira
kn-aut-name=榊原精
kn-aut-sei=榊原
kn-aut-mei=精
aut-affil-num=1
ORCID=

en-aut-name=KanadaniTeruto
en-aut-sei=Kanadani
en-aut-mei=Teruto
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

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

affil-num=2
en-affil=
kn-affil=Okayama University of Science
END

start-ver=1.4
cd-journal=joma
no-vol=25
cd-vols=
no-issue=1
article-no=
start-page=1
end-page=13
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1990
dt-pub=19901214
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=A Method of Cubic Object Feature Extraction
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=How to reduce and simplify the calculation for image recognition is a very attractive and important issue in order to realize the real time control of a robot based on the image recognition results. This paper describes a method of extracting 2 - dimensional geometrical features of cubic objects based on the normal vector distributions from the visual information obtained with the laser range finder to reduce the calculation of the image recognition. In this research a laser beam is scanned in the horizontal plane to which the cubic objects stand vertically and the laser spot is detected with a TV camera every sampling time. These spots make an intermittent locus which includes some special lines corresponding to the cubic objects. To extract the features of the cubic objects, we utilize the normal vectors formed on the locus. If some normal vectors distribute in the same direction and the origin of the normal vectors are very close to their neighbor's, these normal vectors can be classified into the same class, -the straight line class. Because the normal vectors on the neighbor surfaces of the cubic objects are vertical to each other, we use this property to determine the pair of straight lines which belong to the cubic objects. Making the histogram based on the normal vectors with the same direction, we obtain the peaks which are supported by the points on the cubic object surfaces. Then, the points can be extracted from the set of points on the whole locus inversely according to the relations with the peaks and the features of the cubic object can be extracted by applying method of least square to these extracted points. The experiments proved the availability of the proposed processing algorithm.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=GaoHong
kn-aut-sei=Gao
kn-aut-mei=Hong
aut-affil-num=1
ORCID=

en-aut-name=WadaTsutomu
en-aut-sei=Wada
en-aut-mei=Tsutomu
kn-aut-name=和田力
kn-aut-sei=和田
kn-aut-mei=力
aut-affil-num=2
ORCID=

en-aut-name=NoritsuguToshiro
en-aut-sei=Noritsugu
en-aut-mei=Toshiro
kn-aut-name=則次俊郎
kn-aut-sei=則次
kn-aut-mei=俊郎
aut-affil-num=3
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 Industrial and Mechanical Engineering

affil-num=3
en-affil=
kn-affil=The Graduate School of Natural Science and Technology
END