Yoshikazu Kobayashi

Profile Information

Affiliation: Professor, College of Science and Technology Department of Civil Engineering, Nihon University

Researcher number: 20339253
J-GLOBAL ID: 200901023391250705
researchmap Member ID: 1000256086

Research Interests

Research Areas

Social infrastructure (civil Engineering, architecture, disaster prevention) / Structural and seismic engineering / Structural Engineering, Earthquake Engineering, Maintenance Management Engineering
Social infrastructure (civil Engineering, architecture, disaster prevention) / Geotechnical engineering / Soil Foundations Engineering
Social infrastructure (civil Engineering, architecture, disaster prevention) / Civil engineering (materials, implementation, construction management) / Civil Engineering Materials/Execution/Construction Management

Research History

Apr, 2016 - Present

Professor, Department of Civil Engineering, College of Science and Technology, Nihon Univresity
Apr, 2010 - Mar, 2016

Associate Professor, Department of Civil Engineering, College of Science and Technology, Nihon University
Apr, 2006 - Mar, 2010

Assistant Professor, Department of Civil Engineering, College of Science and Technology, Nihon University

Education

Apr, 1997 - Mar, 2001

Department of Civil Engineering, Graduate School, Division of Engineering, The University of Tokyo
Apr, 1995 - Mar, 1997

Department of Civil Engineering, Graduate School, Division of Science and Engineering, Nihon University
Apr, 1991 - Mar, 1995

Department of Civil Engineering, College of Science and Technology, Nihon University
Apr, 1991 - Mar, 1995

Department of Civil Engineering, College of Science and Technology, Nihon University

Awards

Papers

Application of Classified Elastic Waves for AE Source Localization Based on Self-Organizing Map

Katsuya Nakamura, Yoshikazu Kobayashi, Kenichi Oda, Satoshi Shigemura

Applied Sciences, 13(9) 5745-5745, May 6, 2023 Peer-reviewed
Classification of Elastic Wave for Non-Destructive Inspections Based on Self-Organizing Map

Katsuya Nakamura, Yoshikazu Kobayashi, Kenichi Oda, Satoshi Shigemura

SUSTAINABILITY, 15(6), Mar, 2023 Peer-reviewed
Improved Acoustic Emission Tomography Algorithm Based on Lasso Regression

Xin Qiao, Yoshikazu Kobayashi, Kenichi Oda, Katsuya Nakamura

APPLIED SCIENCES-BASEL, 12(22), Nov, 2022 Peer-reviewed
Validation of elastic wave arrival detection method based on use of sparse matrix computation

K Nakamura, Y Kobayashi, K Oda, S Shigemura, K Ikebata

IOP Conference Series: Materials Science and Engineering, 1242(1) 012025-012025, Apr 1, 2022 Peer-reviewed
New algorithm of Acoustic Emission Tomography that considers change of emission times of AE events during identification of elastic wave velocity distribution

Y. Kobayashi, K. Nakamura, K. Oda

11th International Conference on Bridge Maintenance, Safety and Management, 213-221, 2022 Peer-reviewed
Evaluation of Unfilled Sheath in Concrete Structures Using Response Waveform in Time Domain

Kota Ikebata, Yoshikazu Kobayashi, Kenichi Oda, Katsuya Nakamura

Applied Sciences, 11(23) 11402, Dec, 2021 Peer-reviewed
Influence of the input frequency for soundness evaluation of concrete structure based on waveform analysis

Kota Ikebata, Yoshikazu Kobayashi, Kenichi Oda, Katsuya Nakamura

International Conference CIBv 2020 Civil Engineering and Building Services, IOP Conference Series: Materials Science and Engineering, 1138(1) 012025-012025, Apr, 2021 Peer-reviewed
Validation of AE tomography based on model tests of soil specimen with heterogeneous elastic wave velocity distribution

Katsuya Nakamura, Yoshikazu Kobayashi, Kenichi Oda, Satoshi Shigemura and Kota Ikebata

International Conference CIBv 2020 Civil Engineering and Building Services, IOP Conference Series: Materials Science and Engineering, 1138(1) 012033-012033, Apr, 2021 Peer-reviewed
Study on determination of an object material using the microwave doppler sensor

Kenichi Oda, Katsuya Nakamura, Kota Ikebata, Yoshikazu Kobayashi

International Conference CIBv 2020 Civil Engineering and Building Services, IOP Conference Series: Materials Science and Engineering, 1138(1) 012034-012034, Apr, 2021 Peer-reviewedLast author
時刻歴波形ノイズ部の実効電圧を用いた AE 到達時刻自動検出手法の開発

中村勝哉, 小林義和, 小田憲一, 池端宏太

土木学会論文集A2(応用力学), 77(2) I_495-I_506, 2021 Peer-reviewed
時系列応答波形を用いた矩形断面構造物の内部欠陥探査

Kota IKEBATA, Yoshikazu KOBAYASHI, Kenichi ODA, Katsuya NAKAMURA

コンクリート構造物の補修, 補強, アップグレード論文報告集, 20 377-382, Oct, 2020 Peer-reviewed
Inverse Simulation for Extracting the Flow Characteristics of Artificial Snow Avalanches Based on Computation Fluid Dynamics

Kenichi Oda, Katsuya Nakamura, Yoshikazu Kobayashi, Jun-ichi Suzumura

Geosciences, 10(6) 221, Jun 6, 2020 Peer-reviewed
AEトモグラフィ法における弾性波の発信位置同定手法の改良

小林義和

コンクリート構造物の非破壊検査シンポジウム論文集, 6 55-62, Aug 2, 2018 Peer-reviewedLead author
A Source Localization Technique Based on a Ray-Trace Technique with Optimized Resolution and Limited Computational Costs

Kobayashi, Y., Oda, K., Nakamura, K.

proceedings, 2(8), Jul 21, 2018 Peer-reviewed
Source location algorithm with controlled resolution based on ray-trace technique

Kobayashi, Y., Oda, K., Tamura, Y., Fuse, T., Shiotani, T.

Proceedings of Second International RILEM/CONST Conference on Early Age Cracking and Serviceability in Cement-based Materials and Structures, 161-166, Sep 14, 2017 Peer-reviewedLead author
Damage evaluation of RC bridge deck under wheel loading test by means of AE Tomography

Takahiro Nishida, Tomoki Shiotani, Hirofumi Asaue, T. Maeshima, Yoshikazu Kobayashi

IAES-23 & IIIAE 2016 Kyoto & ICAE-8, Kyoto, Dec, 2016 Peer-reviewed
Evaluation of grouting condition of prestressing reinforcement by means of wave velocity tomography

Artur Sagradyan, Tomoki Shiotani, Takahiro Nishida, Hirofumi Asaue, Yoshikazu Kobayashi

IAES-23 & IIIAE 2016 Kyoto & ICAE-8, Dec, 2016 Peer-reviewed
Damage evaluation for In-field RC bridge deck by AE Tomography

M. Fukuda, Tomoki Shiotani, Takahiro Nishida, Hirofumi Asaue, Yoshikazu Kobayashi

IAES-23 & IIIAE 2016 Kyoto & ICAE-8, Dec, 2016 Peer-reviewed
Evaluation of water leakage repair by one side access elastic wave tomography using Rayleigh wave

Hirofumi Asaue, Tomoki Shiotani, Takahiro Nishida, C. Huang

IAES-23 & IIIAE 2016 Kyoto & ICAE-8, Dec, 2016 Peer-reviewed
Development of elastic wave tomography method for evaluation of internal concrete using drilling holes

Hitoshi Yatsumoto, Takahiro Nishida, Tomoki Shiotani, C. Huang, Norihiko Ogura, Yoshikazu Kobayashi

IAES-23 & IIIAE 2016 Kyoto & ICAE-8, Dec, 2016 Peer-reviewed

Misc.

時系列応答波形の変化量（差分値）を指標としたコンクリート構造物の内部欠陥評価

池端宏太,小林義和,小田憲一,中村勝哉

「超音波テクノ」特集超音波等を適用したプラントの保守検査, 47-51, Feb 1, 2022
Development of Elastic Wave Tomography Measurement Technology that uses Hammering Test

(63) 1-6, 2014

Books and Other Publications

Innovative AE and NDT Techniques for On-Site Measurement of Concrete and Masonry Structures

F. Accorner, D.G. Aggelis, A. Carpinteri, C.U. Grosse, Y. Kobayashi, G. Lacidogna, T. Shiotani (Role: Joint author, Computerized AE Tomography) (Original Author(s): F. Accorner, D.G. Aggelis, A. Carpinteri, C.U. Grosse, Y. Kobayashi, G. Lacidogna, T. Shiotani)

Springer, 2016
VBAによるプログラミングの理解と実際 —演習：地球環境化学系問題—VBAによるプログラミングの理解と実際 —演習：地球環境化学系問題—

鈴村順一, 相馬直孝, 小林義和, 西川貴雄, 栃木勝己, 久保田進 (Role: Joint author) (Original Author(s): 鈴村順一, 相馬直孝, 小林義和, 西川貴雄, 栃木勝己, 久保田進)

化学工業社, Mar, 2013 (ISBN: 9784759400021)

Presentations

AE 到達時刻の検出を目的とした SOM による AE 波のクラスタリング

王哲杰, 小林義和,小田憲一,中村勝哉

2021年度秋季講演大会, Nov 11, 2021, 一般社団法人日本非破壊検査協会
AE トモグラフィ法によって同定された弾性波速度分布に基づく構造物の性能照査

海野征久, 小林義和,小田憲一,中村勝哉

2021年度秋季講演大会, Nov 11, 2021, 一般社団法人日本非破壊検査協会
ニューラルネットワークを用いた弾性波到達時刻自動検出手法

北沢大樹, 小林義和,小田憲一,中村勝哉

2021年度秋季講演大会, Nov 10, 2021, 一般社団法人日本非破壊検査協会
Current problem and challenge on Acoustic emission tomography

Yoshikazu KOBAYASHI

INTERNATIONAL CONFERENCE CIBv2021CIVIL ENGINEERING AND BUILDING SERVICES, Nov 4, 2021, Transylvania University of Brasov Invited
Improvement of source localization technique in AE-Tomography

Yoshikazu KOBAYASHI

INTERNATIONAL CONFERENCE CIBv2021CIVIL ENGINEERING AND BUILDING SERVICES, Nov 5, 2020, Transylvania University of Brasov Invited
数値計算によって生成された時系列応答波形によるコンクリート板の内部欠陥評価の検討

池端宏太, 小林義和,小田憲一,中村勝哉

2020度秋季講演大会, Oct 28, 2020, 一般社団法人日本非破壊検査協会
AEトモグラフィ法における同定対象パラメータの拘束条件の影響

中村勝哉, 小林義和, 小田憲一, 池端宏太

令和2年度全国大会・第75回年次学術講演会, Sep 7, 2020, 公益社団法人土木学会
AEトモグラフィ法による地盤の進行性破壊評価手法の検討

中村勝哉, 小林義和, 小田憲一, 池端宏太

第47回土木学会関東支部技術研究発表会, Mar 4, 2020, 公益社団法人土木学会関東支部
Numerical investigations on the characteristics of Acoustic Emission Tomography for the soundness evaluation of the bridge decks

Yoshikazu Kobayashi, Takahiro NIshida, Katsuya Nakamura, Kenichi Oda, Junichi Suzumura

Asian Pacific Congress on Computational Mechanics 2019(APCOM2019), Dec 20, 2019
[MS1403C] Advances in Computational Methods in Infrastructure Systems and Engineering

Asian Pacific Congress on Computational Mechanics 2019(APCOM2019), Dec 20, 2019
Development of Reverse Simulation for extracting viscosity characteristics of the Avalanche

Kenichi Oda, Katsuya Nakamura, Yoshikazu Kobayashi

Asian Pacific Congress on Computational Mechanics 2019(APCOM2019), Dec 18, 2019
AEトモグラフィ法における弾性波速度上限の影響

小林義和,中村勝哉,小田憲一

2019年度秋季講演大会, Nov 12, 2019, 一般社団法人日本非破壊検査協会
Nondestructive testing based on elastic wave methods,for infrastructures

Yoshikazu KOBAYASHI

INTERNATIONAL CONFERENCE CIBv2019 CIVIL ENGINEERING AND BUILDING SERVICES, Nov 1, 2019, Transylvania University of Brasov Invited
時系列応答波形を用いたコンクリート構造物の内部空洞の,評価

池端宏太, 小林義和, 小田憲一

令和元年度全国大会・第74回年次学術講演会, Sep 5, 2019, 公益社団法人土木学会
三次元空間における異方性を考慮したAE位置標定法

小林義和,Lin Wenli,古関潤一,中村勝哉, 小田憲一,重村智,前野賀彦

第65回理論応用力学講演会, Jun 30, 2019, 公益社団法人土木学会
応答波形による内部欠陥探査に関する基礎的検討

池端宏太,小林義和, 小田憲一

平成30年度秋季講演大会, Nov 15, 2018, 一般社団法人日本非破壊検査協会
Performance improvements of AE-Tomography

Kobayashi, Y.

Innovative Non-destructive testing for civil engineers, Nov 23, 2017, Advanced Technology Institute of Infra-Maintainance
Acoustic Emission Tomography for soundness evaluation of concrete structures

Yoshikazu Kobayashi

INTERNATIONAL CONFERENCE CIBv2017 CIVIL ENGINEERING AND BUILDING SERVICES, Nov 3, 2017, Transilvania University of Brasov Invited
三次元弾性波トモグラフィー法を用いた内部欠陥探査の実験的検討

関根義夫, 池端宏太, 小林義和

平成29年度秋季講演大会, Oct 5, 2017, 一般社団法人日本非破壊検査協会
Accuracy of identified source locations on source location techniques for AE testing

Tamura, Y., Oe, T., Oda, K., Kobayashi, Y.

6th International Conference on Civil Engineering, Aug 29, 2017, Nihon University and Technical University of the Philippines

Professional Memberships

Research Projects

多チャンネル計測による弾性波速度と減衰特性の空間分布の同定

科学研究費助成事業, 基盤研究(C), 日本学術振興会, Apr, 2021 - Mar, 2024

小林義和, 西田孝弘, 小田憲一, 中村勝哉
流下中の土砂を含む雪崩を対象とした内部構造の観測と運動メカニズムの把握

科学研究費助成事業, 基盤研究(C), 日本学術振興会, Apr, 2019 - Mar, 2024

小田憲一, 小林義和, 上石勲, 中村勝哉
AE-Tomography for anisotropic materials

Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (C), Japan Society for the Promotion of Science, Apr, 2015 - Mar, 2018

KOBAYASHI Yoshikazu, CHAI Hwa-Kian
Applicability limit of high accuracy simulation for rock-fall and debris-flow using several numerical methods.

Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (B), Japan Society for the Promotion of Science, 2010 - 2011

SAWADA Kazuhide, MAEDA Kenichi, KOBAYASHI Yoshikazu, MORIGUCHI Syuji, AOKI Takayuki

Profile Information

Research Interests

Research Areas

Research History

Education

Awards

Papers

Misc.

Books and Other Publications

Presentations

Professional Memberships

Research Projects

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