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Preprints of the National Meeting of JWS

Displaying 151-199 of 199 articles from this issue

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Numerical analysis of welding fume formation mechanism(report5)

Shinichi Tashiro, Tasuku Zeniya, Manabu Tanaka

Session ID: 404
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.151.0

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Metal-metal and metal-nonmetal bonding states around a noble gas atom

Wataru Takahara

Session ID: 405
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.152.0

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Relationship between surRelationship between surface tension of molten iron, temperature and oxygen partial pressure by electromagnetic levitation techniquefacee tension of molten iron, temperature and oxygen partial pressure by electromagnetic levitation technique

Shumpei OZAWA, Suguru Takahashi

Session ID: 406
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.153.0

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Simplified Numerical Model of Short-circuiting Transfer Process

Tatsuya Morikawa, Keiji Kadota, Yoshinori Hirata, Tetsuo Era

Session ID: 407
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.154.0

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Numerical analysis of metal vapour in GMA welding with using unified model

Keiji Kadota, Yoshinori Hirata

Session ID: 408
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.155.0

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Effect of Shielding Gas on Nitrogen Content of Weld Metal in TIG Welding

SHINJI KLODAMA, KAZUKI SUGIURA, YOSHIHIRO TSUJIMURA, MANABU TANAKA, TA ...

Session ID: 409
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.156.0

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Ultrasonic effect on quality of the welding joint.

Fuminori Inagaki, Hidetoshi Fujii, Masayoshi Kamai, yoshiaki morisada

Session ID: 410
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.157.0

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The effects of shielding gas and wire composition on metal transfer in gas metal arc welding

Yuji Suzuki, Yoshinori Hirata, Keiji Kadota

Session ID: 411
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.158.0

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Reseach on weld pool formation by magnetic controlled arc

Yosuke OGINO, Junichi KAWATA, Kazufumi NOMURA, Yoshinori HIRATA

Session ID: 412
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.159.0

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developement of the predictable model for incomplete fusions in GMA welding

Yuichiro Yoshioka, Kazufumi Nomura, Yoshinori Hirata

Session ID: 413
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.160.0

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Development of MIG welding process with dual contact points

Tsubasa KATAYAMA, SHINICHI TASHIRO, Manabu TANAKA

Session ID: 414
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.161.0

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Effect of arc length on welding penetration in AA plasma welding

Xukun Ni, Hidetoshi Fujii, Yoshiaki Morisada, Manabu Tanaka

Session ID: 415
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.162.0

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The AA-plasma welding of SUS304 stainless steel was studied. As the arc length has a strong effect on the intensity of arc and the flow of shielding gas, it is considered as a key parameter in AA plasma welding. The welding experiments were carried out by controlling the arc length, and the relationship between arc length and welding pool shape was investigated.

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Computational Analysis of Heat Input Property during TIG Welding with Torch Tilt

Nobuhisa Ochi, Shigetaka Okano, Manabu Tanaka, Mochizuki Masahito

Session ID: 416
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.163.0

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Observation and Control of Weld Pool by using CCD camera in Pulsed Plasma Welding

Satoshi Yamane, TARO TAKANASHI, TAKAHIRO GOUDO, Kazumichi HOSOYA, Toru ...

Session ID: 417
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.164.0

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The voltage behavior depends on the keyhole situation. But, the relationship between the stability of the bead and keyhole is unclear. It is difficult to estimate the back bead by using the voltage and the current. The authors tried to observe the weld pool on top side to estimate that on the bottom side. For this purpose, the authors applied the pulsed current to the plasma welding to observe the weld pool.

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Welding inspection by Image-Processing

Tadashi Kawagoe, Takashi Murosaki, Katsumi Nagasaka, Kyousuke Ishikawa

Session ID: 418
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.165.0

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In conventional Quality-Contorl for TIG welding, the operater do Visual-Inspection to appearance of weldin part. Therefore, we developped Visual-Inspection machine using Image-Processing. For separation of welding part, we apply GrabCut technology, and for defective part by blow-hole, we apply SVM technology. As a result, we were realized in-process monitoring for Automated Line.

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Examination of welding conditions in a digital pulse welding machine (Report 3)

The case of the MIG welding of aluminium alloy

Naoya Tomonaga, Masahiro Hayashida, Atsushi Imura, Nobuyuki Fujii

Session ID: 419
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.166.0

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Development of Digital inverter controlled GMA welding power source applying welding electronic engine

Spatter reduction on CO2 arc welding using CBT-EX process

KOHEI ONO, AKIHIRO IDE, TETSUO ERA, KOSAKU YAMAGUCHI, TOSHIRO UEZONO, ...

Session ID: 420
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.167.0

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Development of WC Hard Facing Welding Process using Pulse Heated Hot Wire GTAW Method

Kenji Shinozaki, Motomichi Yamamoto, Kota Kadoi, Hirotaka Nakashin, Ta ...

Session ID: 421
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.168.0

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Study of High-Quality and High-Efficiency Welding process by TIG-MIG hybridization (Report2)

Shuhei Kanemaru, Tomoaki Sasaki, Toyoyuki Satou, Manabu Tanaka

Session ID: 422
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.169.0

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Development of High Efficiency CO2 Arc Welding Method using Hot Wire (Report 3)

TADAHISA TSUYAMA

Session ID: 423
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.170.0

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Application of the spray transfer type CO2 arc welding in ship building

Takuya Kusaba, Noboru Kiji, Tokihiko Kataoka, Rinsei Ikeda

Session ID: 424
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.171.0

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Development of overlay welding equipment for water-tube boiler

Mitsuyoshi NAKATANI, Yoshio MOTOI, Kazuhiro TOYAMA

Session ID: 425
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.172.0

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Development of Repair Welding Process of Aged Cast Steels for Steam Turbine

Kenji Shinozaki, Motomichi Yamamoto, Kota Kadoi, Aoi Murakami, Hideo M ...

Session ID: 426
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.173.0

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Investigations into the forming sequences of steel stud welds

Yuuki Yamada, Jippei Suzuki, Hiroshi Kawakami, Hitoshi Ozaki

Session ID: 427
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.174.0

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In stud welding, the movement of stud is essential. In this study, the electric and mechanical phenomena, such as current, arc voltage and movement of stud, were investigated during welding of steels under some welding conditions in order to understand the sequences of welding.

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Development of low heat input Submerged Arc Welding with smaller diameter welding wire

ATSUSHI ISHIGAMI, NAOYA HAYAKAWA, KOJI YANO, SHIGERU ENDO

Session ID: 428
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.175.0

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Effect of Flux on Arc Phenomena in Submerged-Arc Welding

Fundamental Study on Submerged-Arc Welding(Report1)

Kazuki KASANO, Masato UCHIHARA, Hiroyuki HIRATA, Kazuhiro OGAWA

Session ID: 429
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.176.0

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We studied effect of flux on arc phenomena in Submerged-Arc Welding by compairing Current-Voltage wave form of Gas Shielded Metal Arc Welding.

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Development of Welding Consumables for the Wind Tower Structures

Hiroshi Nakazawa, Tomomi Yokoo, Hajime Nagasaki

Session ID: 430
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.177.0

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Observation of molten pool behavior in pulse electron beam welding of aluminum alloy.

Kunika Ueno, Minoru Shindo, Masahito Mochizuki

Session ID: 431
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.178.0

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Development of plasma enhanced electric resitance welding

HIDEKI HAMATANI, FUMINORI WATANABE, NOBUO MIZUHASHI, TESUO ISHITSUKA

Session ID: 432
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.179.0

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Development of quasi laminar plasma torch

HIDEKI HAMATANI, DFUMINORI WATANABE, SUNAO TAKEUCHI, TETSUROU NOSE, AN ...

Session ID: 433
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.180.0

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Dvelopment of plasma enhanced ERW

Enhancement of weldability by using quasi laminar plasma jet

HIDEKI HAMATANI, FUMINORI WATANABE, TESUROU NOSE, TAKUYA ASANO, TAKASH ...

Session ID: 434
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.181.0

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Magnetic Pulse Welding of Laminated Aluminum Foils

Tomokatsu Aizawa, Kazuo Matsuzawa, Keigo Okagawa

Session ID: 435
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.182.0

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Interface Structure of the Glass/Al welded by Busbar Bonding Machine

chihiro iwamoto, shinobu satonaka, akio yoshida, tomoyuki nishinaka, k ...

Session ID: 436
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.183.0

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Accumulative effects on interfacial microstructure evolution of Al alloy builds fabricated by very high power ultrasonic additive manufacturing

Hiromichi Fujii, Sriraman Ramanujam, Babu Sudarsanam

Session ID: 437
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.184.0

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Interfacial microstructure of ultrasonic bonding of Cu and Ni, and evaluation of its reliability

You Tanaka, Shinichi Fujiwara, Tomo Ogura, Tomokazu Sano, Akio Hirose

Session ID: 438
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.185.0

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Study of Dissimilar Metal Joint of Low Carbon Steel and Aluminum Alloy with Laser-Assisted Metal and Plastic Direct Joining

Yousuke KAWAHITO, Koji NISHIMOTO, Seiji KATAYAMA

Session ID: 439
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.186.0

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Joining dissimilar materials is a key process in the manufacture of multimaterial products. The objectives of this research is to produce and evaluate a dissimilar metal joint of SPDC low carbon steel and A5052 aluminium alloy with sandwiching polyethylene terephthalate (PET) plastic for improvement of both joint strength and galvanic corrosion.

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Laser direct joining of titanium and plastics

Koji NISHIMOTO, Yousuke KAWAHITO, Seiji KATAYAMA

Session ID: 440
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.187.0

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In this study, the direct joining of titanium and plastics by the LAMP joining method was carried out. Moreover, the relation between the weldability, joint strength and the holding force of the LAMP joints was examined.

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LAMP joining between highly reflective metal and PET

Takashi NAMIE, Yousuke KAWAHITO, Seiji KATAYAMA

Session ID: 441
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.188.0

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Laser direct joining of pitch-based CFRP and stainless steel

Kwangwoon JUNG, Yousuke KAWAHITO, Seiji KATAYAMA

Session ID: 442
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.189.0

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Development of Method of Ultra Low Strain Laser Welding of The Thin Sheet Structure by Temperature Field Control Technology

Low Strain Techniques in Laser Weld of Stainless Steels

ryohei takamatsu, togo kawakami, michinori okubo, toshiyuki hasegawa, ...

Session ID: 443
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.190.0

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Weldability of high-tensile steel with high power disk laser under low-vacuum

Ryouji Ido, Seiji Katayama, Yousuke Kawahito, Masami Mizutani

Session ID: 444
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.191.0

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Weldability of Zn-Coated Steel in Remote Welding with Disk Laser

Sujin LEE, Seiji Katayama, Yousuke KWAHITO, Keisuke Kinoshita

Session ID: 445
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.192.0

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Effect of thermal cycle on joint performance in Fe / Al laser welding

hayato genoku, zippei suzuki, hiroshi kawakami, hitoshi ozaki

Session ID: 446
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.193.0

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When steel and aluminum are welded, it is necessary to suppress a brittle layer at the joint surface. In this study, the effect of the thermal cycle of laser welding on the formation of the layer and joint strength was discussed when welding speed and defocus distance were varied.

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Application of Laser Welding Using Strip Filler Metal in Narrow Gap Joints.

Kenji Yamaguchi, Yasuo Murai, Noritaka Eguchi, Taizo Kobashi

Session ID: 447
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.194.0

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Multi-layer laser welding using strip filler metal for thick plate steel were investigated. The aim of the test is to enable narrow gap welding with low strain and high efficiency by feeding strip filler metal along groove face for target thickness from 50 to 200 mm. Authors report the test results applied to thickness 50 mm for the first try.

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Study of the laser-butt-welding with filer wire for the improvement of the gap accuracy

Ryo Kubota, Masataka Suzuki, Tadashi Nishiwaki, Nobuyuki Yokoyama, Aki ...

Session ID: 448
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.195.0

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In the large-scale structure, the improvement of the gap accuracy in the laser-butt-welding obstructs a decrease in the cost of manufacturing. Then, we have been developed the new method for maximum gap 2mm in 4mm thickness weld steel sheets, using the 6kW fiber laser welding system with the filler wire.

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Development of Ultra Small Deformation Fillet Welding process by Hot-wire Laser Welding Method

Kota Kadoi, Kenji Shinozaki, Motomichi Yamamoto, Yuichi Hozo, Hiroyasu ...

Session ID: 449
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.196.0

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Formation of one pass fully-penetrated weld bead of titanium plate by fiber laser and MIG arc hybrid welding

Takahiro Murakami, Naotsugu Yamamoto, Jinsun Liao, Kazuhiro Nakata

Session ID: 450
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.197.0

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Investigation on groove geometry and welding conditions in hybrid laser welding of thick carbon steel plates

Xudong Zhang, Eiji Ashida, Shoh Tarasawa, Yukihiro Soga, Seiji Katayam ...

Session ID: 451
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.198.0

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Effect of shielding gas on joint properties in hybrid laser welding of thick carbon steel plates

Xudong Zhang, Eiji Ashida, Shoh Tarasawa, Yukihiro Soga, Seiji Katayam ...

Session ID: 452
Published: 2011
Released on J-STAGE: November 09, 2011

DOIhttps://doi.org/10.14920/jwstaikai.2011f.0.199.0

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