Graduate School of Fundamental Science and Engineering

  • Japan

Research Output 1974 2019

19 Citations (Scopus)

Effects of potential, temperature and pH on hydrogen absorption and thermal desorption behaviors of Ni-Ti superelastic alloy in 0.9% NaCl solution

Tomita, M., Yokoyama, K. & Sakai, J., 2008 Jul, In : Corrosion Science. 50, 7, p. 2061-2069 9 p.

Research output: Contribution to journalArticle

Thermal desorption
Hydrogen
Temperature
Desorption
titanium nickelide
8 Citations (Scopus)

Effects of potential on hydrogen absorption and desorption behaviors of titanium in neutral fluoride solutions

Takashima, K., Yokoyama, K., Asaoka, K. & Sakai, J., 2007 Apr 4, In : Journal of Alloys and Compounds. 431, 1-2, p. 203-207 5 p.

Research output: Contribution to journalArticle

Titanium
Fluorides
Hydrogen
Desorption
Thermal desorption
2 Citations (Scopus)

Effects of temperature, phase, elastic deformation and transformation on inhibition of localized corrosion of hydrogen-charged Ni-Ti superelastic alloy in NaCl solution

Nishimoto, S., Yokoyama, KI., Inaba, T., Mutoh, K. & Sakai, JI., 2016 Oct 15, In : Journal of Alloys and Compounds. 682, p. 22-28 7 p.

Research output: Contribution to journalArticle

Elastic deformation
Hydrogen
Corrosion
Martensite
Current density
4 Citations (Scopus)

Effects of test conditions on corrosion reactions and hydrogen absorption in hydrogen embrittlement tests using an ammonium thiocyanate solution

Ichiba, M., Takai, K. & Sakai, J., 2016, In : ISIJ International. 56, 3, p. 397-407 11 p.

Research output: Contribution to journalArticle

Hydrogen embrittlement
Hydrogen
Corrosion
Steel
Dissolved oxygen
12 Citations (Scopus)

Effects of the hydrogen absorption conditions on the hydrogen embrittlement behavior of Ni-Ti superelastic alloy

Yokoyama, K., Nagaoka, A. & Sakai, J., 2012, In : ISIJ International. 52, 2, p. 255-262 8 p.

Research output: Contribution to journalArticle

Hydrogen embrittlement
Hydrogen
Thermal desorption
Embrittlement
titanium nickelide
15 Citations (Scopus)

Efficient way to attach organosilyl groups in the interlayer space of layered solids

Ide, Y. & Ogawa, M., 2007, In : Bulletin of the Chemical Society of Japan. 80, 8, p. 1624-1629 6 p.

Research output: Contribution to journalArticle

Silanes
Derivatives
Silicates
Chemical analysis
8 Citations (Scopus)

Eigenvalue problem for fully nonlinear second-order elliptic PDE on balls

Ikoma, N. & Ishii, H., 2012 Sep, In : Annales de l'Institut Henri Poincare. Annales: Analyse Non Lineaire/Nonlinear Analysis. 29, 5, p. 783-812 30 p.

Research output: Contribution to journalArticle

Elliptic PDE
Fully Nonlinear
Eigenvalues and eigenfunctions
Eigenvalue Problem
Eigenfunctions
4 Citations (Scopus)

Eigenvalue problem for fully nonlinear second-order elliptic PDE on balls, II

Ikoma, N. & Ishii, H., 2015 Oct 1, In : Bulletin of Mathematical Sciences. 5, 3, p. 451-510 60 p.

Research output: Contribution to journalArticle

Elliptic PDE
Fully Nonlinear
Eigenvalue Problem
Eigenfunctions
Ball
High strength steel
Welds
Water
Autoclaves
Metals
9 Citations (Scopus)

Energy consumption tradeoffs for compressed wireless data at a mobile terminal

Veijalainen, J., Ojanen, E., Haq, M. A., Vahteala, V. P. & Matsumoto, M., 2004 May, In : IEICE Transactions on Communications. E87-B, 5, p. 1123-1130 8 p.

Research output: Contribution to journalArticle

Energy conservation
Energy utilization
Personal digital assistants
Global system for mobile communications
Base stations
32 Citations (Scopus)

Enhancing performance of next generation FSO communication systems using soft computing-based predictions

Kazaura, K., Omae, K., Suzuki, T., Matsumoto, M., Mutafungwa, E., Korhonen, T. O., Murakami, T., Takahashi, K., Matsumoto, H., Wakamori, K. & Arimoto, Y., 2006, In : Optics Express. 14, 12, p. 4958-4968 11 p.

Research output: Contribution to journalArticle

free-space optical communication
telecommunication
predictions
atmospheric turbulence
wave fronts
3 Citations (Scopus)
Self-similar Set
Solitons
Chaos theory
Fractals
Fractal
8 Citations (Scopus)

Erratum: SDEs with oblique reflections on nonsmooth domains (The Annals of Probability (1993) 21 (554-580))

Dupuis, P. & Ishii, H., 2008 Sep, In : Annals of Probability. 36, 5, p. 1992-1997 6 p.

Research output: Contribution to journalArticle

Nonsmooth Domains
Oblique
Stochastic differential equations
14 Citations (Scopus)

Error Estimates of a Pressure-Stabilized Characteristics Finite Element Scheme for the Oseen Equations

Notsu, H. & Tabata, M., 2015 Feb 4, In : Journal of Scientific Computing. 65, 3, p. 940-955 16 p.

Research output: Contribution to journalArticle

Oseen Equations
Error Estimates
Finite Element
Convergence Order
Degrees of freedom (mechanics)
12 Citations (Scopus)

Error estimates of a stabilized Lagrange-Galerkin scheme for the Navier-Stokes equations

Notsu, H. & Tabata, M., 2016 Mar 1, In : Mathematical Modelling and Numerical Analysis. 50, 2, p. 361-380 20 p.

Research output: Contribution to journalArticle

Degrees of freedom (mechanics)
Galerkin methods
Linear equations
Lagrange
Galerkin
49 Citations (Scopus)

ERROR-RATE PERFORMANCE OF DIGITAL FM WITH DIFFERENTIAL DETECTION IN LAND MOBILE RADIO CHANNELS.

Hirade, K., Ishizuka, M., Adachi, F. & Ohtana, K., 1979 Aug, In : IEEE Transactions on Vehicular Technology. VT-28, N 3, p. 204-212 9 p.

Research output: Contribution to journalArticle

Cochannel interference
Gaussian noise (electronic)
Co-channel Interference
Gaussian Noise
Error Rate
1 Citation (Scopus)

Estimating the effects of microscopic stress concentrations on the fatigue endurance of thin-walled high strength steel

Toyoda, S., Kawabata, Y., Sakata, K., Sato, A., Yoshihara, N. & Sakai, J., 2009, In : ISIJ International. 49, 11, p. 1806-1813 8 p.

Research output: Contribution to journalArticle

High strength steel
Stress concentration
Durability
Fatigue of materials
Numerical analysis
1 Citation (Scopus)

Estimation of projector defocus blur by extracting texture rich region in projection image

Oyamada, Y. & Saito, H., 2008, 16th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision, WSCG'2008 - In Co-operation with EUROGRAPHICS, Full Papers. p. 153-160 8 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Optical transfer function
Textures
Error analysis
Cameras
1 Citation (Scopus)

Evaluating M-ary PSK multiple-subcarrier modulation over FSO links using aperture averaging

Ben Bekkali, A., Naila, C., Kazaura, K., Wakamori, K. & Matsumoto, M., 2010, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7814. 78140V

Research output: Chapter in Book/Report/Conference proceedingConference contribution

phase shift keying
Optical links
Phase shift keying
Free Space
Phase Shift
1 Citation (Scopus)

Evaluating RF signal transmission over radio-on FSO links using aperture averaging

Ben Naila, C., Bekkali, A., Wakamori, K. & Matsumoto, M., 2011, In : Unknown Journal. p. 1499-1504 6 p.

Research output: Contribution to journalArticle

signal transmission
Optical links
binary phase shift keying
Binary phase shift keying
Atmospheric turbulence
24 Citations (Scopus)

Evaluation of hydrogen absorption behaviour during acid etching for surface modification of commercial pure Ti, Ti-6Al-4V and Ni-Ti superelastic alloys

Nagaoka, A., Yokoyama, K. & Sakai, J., 2010 Apr, In : Corrosion Science. 52, 4, p. 1130-1138 9 p.

Research output: Contribution to journalArticle

Surface treatment
Hydrogen
Etching
Acids
Thermal desorption
11 Citations (Scopus)

Evaluation of hydrogen absorption properties of Ti-0.2 mass% Pd alloy in fluoride solutions

Yokoyama, K., Ogawa, T., Asaoka, K. & Sakai, J., 2005 Sep 1, In : Journal of Alloys and Compounds. 400, 1-2, p. 227-233 7 p.

Research output: Contribution to journalArticle

Fluorides
Hydrogen
Acidulated Phosphate Fluoride
Thermal desorption
Phosphates

Evaluation of sEMG-Based Feature Extraction and Effective Classification Method for Gait Phase Detection

Peng, F., Peng, W. & Zhang, C., 2019 Jan 1, Cognitive Systems and Signal Processing - 4th International Conference, ICCSIP 2018, Revised Selected Papers. Hu, D., Sun, F. & Liu, H. (eds.). Springer-Verlag, p. 138-149 12 p. (Communications in Computer and Information Science; vol. 1006).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Electromyography
Gait
Feature Extraction
Feature extraction
Classifiers
1 Citation (Scopus)

Experimental demonstration of a radio on free space optics system for ubiquitous wireless

Kazaura, K., Suzuki, T., Wakamori, K., Matsumoto, M., Higashino, T., Tsukamoto, K. & Komaki, S., 2009, Progress in Electromagnetics Research Symposium. Electromagnetics Academy, Vol. 1. p. 24-29 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Space optics
Demonstrations
Optical fibers
Dense wavelength division multiplexing
Next generation networks
5 Citations (Scopus)

Experimental demonstration of next-generation FSO communication system

Kazaura, K., Omae, K., Suzuki, T., Matsumoto, M., Mutafungwa, E., Asatani, K., Murakami, T., Takahashi, K., Matsumoto, H., Wakamori, K. & Arimoto, Y., 2006, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6390. 63900G

Research output: Chapter in Book/Report/Conference proceedingConference contribution

free-space optical communication
Optical communication
telecommunication
Communication systems
Demonstrations
6 Citations (Scopus)

Experimental evaluation of a Radio-on-FSO communication system for multiple RF signal transmission

Kazaura, K., Dat, P., Bekkali, A., Shah, A., Suzuki, T., Wakamori, K., Matsumoto, M., Nakamura, T., Takahashi, K., Higashino, T., Aburakawa, Y., Tsukamoto, K. & Komaki, S., 2009, In : Unknown Journal. 7199, 717907.

Research output: Contribution to journalArticle

signal transmission
Experimental Evaluation
Communication Systems
telecommunication
Communication systems

Experimental investigation on a radio-on-free-space optical system suitable for provision of ubiquitous wireless services

Matsumoto, M., Kazaura, K., Wakamori, K., Higashino, T., Tsukamoto, K. & Komaki, S., 2010, Progress in Electromagnetics Research Symposium. Electromagnetics Academy, Vol. 1. p. 740-745 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Optical systems
Radio-over-fiber
Optical communication
Wavelength division multiplexing
Photonics
1 Citation (Scopus)

EXPERIMENT IN INTEGRATED DIGITAL SATELLITE COMMUNICATIONS.

Watanabe, Y., Kohiyama, K., Inoue, M., Okubo, S., Matsumoto, M. & Takaki, I., 1983 Jan, In : IEEE Journal on Selected Areas in Communications. SAC-1, 1, p. 143-152 10 p.

Research output: Contribution to journalArticle

Communication satellites
Communication
Satellite links
Experiments
Video conferencing
16 Citations (Scopus)

Experiments and numerical simulations of an electrodynamic tether deployment from a spool-type reel using thrusters

Iki, K., Kawamoto, S. & Morino, Y., 2014, In : Acta Astronautica. 94, 1, p. 318-327 10 p.

Research output: Contribution to journalArticle

Tetherlines
Space debris
Reels
Electrodynamics
Orbital transfer
2 Citations (Scopus)

Extending monolingual semantic textual similarity task to multiple cross-lingual settings

Hayashi, Y. & Luo, W., 2016 Jan 1, Proceedings of the 10th International Conference on Language Resources and Evaluation, LREC 2016. European Language Resources Association (ELRA), p. 1233-1239 7 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

semantics
language
resources
Language
8 Citations (Scopus)

Facilitating incentive-compatible access probability selection in wireless random access networks

Gu, B., Zhang, C., Yamori, K., Zhou, Z., Liu, S. & Tanaka, Y., 2015 Nov 1, In : IEICE Transactions on Communications. E98B, 11, p. 2280-2290 11 p.

Research output: Contribution to journalArticle

Access control
Costs
Quality of service
1 Citation (Scopus)

Failure analysis of printed circuit boards in the main telephone system of marine product factory

Watanabe, M., Takaya, M., Matsumoto, M. & Sakai, J., 2015 Jul 27, (Accepted/In press) In : Engineering Failure Analysis.

Research output: Contribution to journalArticle

Telephone systems
Printed circuit boards
Failure analysis
Industrial plants
Copper

Fast estimation of Hidden Markov Models via alpha-EM algorithm

Matsuyama, Y., Hayashi, R. & Yokote, R., 2011, IEEE Workshop on Statistical Signal Processing Proceedings. p. 89-92 4 p. 5967835

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Hidden Markov models
EM Algorithm
Markov Model
Speedup
CPU Time
20 Citations (Scopus)

Fast-Start Video Delivery in Future Internet Architectures with Intra-domain Caching

Liu, Z., Dong, M., Gu, B., Zhang, C., Ji, Y. & Tanaka, Y., 2016 Mar 31, (Accepted/In press) In : Mobile Networks and Applications. p. 1-15 15 p.

Research output: Contribution to journalArticle

Routers
Internet
Scalable video coding
Network performance
Network architecture
6 Citations (Scopus)

Fast α-weighted EM learning for neural networks of module mixtures

Matsuyama, Y., Furukawa, S., Takeda, N. & Ikeda, T., 1998, IEEE International Conference on Neural Networks - Conference Proceedings. Anon (ed.). Piscataway, NJ, United States: IEEE, Vol. 3. p. 2306-2311 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Neural networks
Supervised learning
Concretes
Experiments
1 Citation (Scopus)

Finite element surface fitting for bridge management

Chen, X. & Kimura, T., 2006 Dec, In : International Journal of Information Technology and Decision Making. 5, 4, p. 671-681 11 p.

Research output: Contribution to journalArticle

Newton-Raphson method
Linear equations
Derivatives
2 Citations (Scopus)

Finite index supergroups and subgroups of torsionfree abelian groups of rank two

Eda, K. & Matijević, V., 2008 May 1, In : Journal of Algebra. 319, 9, p. 3567-3587 21 p.

Research output: Contribution to journalArticle

Torsion-free Abelian Group
Subgroup
Distinct
Direct Limit
Free Group
10 Citations (Scopus)

Finite sheeted covering maps over 2-dimensional connected, compact Abelian groups

Eda, K. & Matijević, V., 2006 Jan 1, In : Topology and its Applications. 153, 7, p. 1033-1045 13 p.

Research output: Contribution to journalArticle

Covering Map
Compact Group
Abelian group
Homomorphisms
Covering
5 Citations (Scopus)

Flattening properties of the mechanism of evaporation-condensation under a temperature gradient

Ogasawara, Y., 2004 Jul, In : Journal of the Physical Society of Japan. 73, 7, p. 1703-1705 3 p.

Research output: Contribution to journalArticle

nonlinear evolution equations
flattening
solid surfaces
temperature gradients
condensation
17 Citations (Scopus)

Focal pre-correction of projected image for deblurring screen image

Oyamada, Y. & Saito, H., 2007, Proceedings of the IEEE Computer Society Conference on Computer Vision and Pattern Recognition. 4270463

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Optical transfer function
Cameras

Formation of basic copper sulfates and chlorides during atmospheric copper corrosion

Watanabe, M., Matsumoto, M., Kuwaki, N. & Sakai, JI., 2009, In : Zairyo to Kankyo/ Corrosion Engineering. 58, 9, p. 328-334 7 p.

Research output: Contribution to journalArticle

Copper corrosion
Copper Sulfate
Atmospheric corrosion
Chlorides
Copper
6 Citations (Scopus)

Fracture and corrosion behaviors of Ni-Ti superelastic alloy under sustained tensile loading in neutral fluoride solution containing hydrogen peroxide

Yoshida, A., Yokoyama, KI., Inaba, T., Mutoh, K. & Sakai, JI., 2012 Dec 15, In : Journal of Alloys and Compounds. 544, p. 24-29 6 p.

Research output: Contribution to journalArticle

Fluorides
Hydrogen peroxide
Hydrogen Peroxide
Corrosion
Martensite
28 Citations (Scopus)

Fracture associated with hydrogen absorption of sustained tensile-loaded titanium in acid and neutral fluoride solutions

Yokoyama, K., Kaneko, K., Miyamoto, Y., Asaoka, K., Sakai, J. & Nagumo, M., 2004 Jan 1, In : Journal of Biomedical Materials Research - Part A. 68, 1, p. 150-158 9 p.

Research output: Contribution to journalArticle

Titanium
Fluorides
Acidulated Phosphate Fluoride
Hydrogen
Acids
22 Citations (Scopus)

Fracture of nickel-titanium superelastic alloy in sodium hypochlorite solution

Yokoyama, K., Kaneko, K., Yabuta, E., Asaoka, K. & Sakai, J., 2004 Mar 25, In : Materials Science and Engineering A. 369, 1-2, p. 43-48 6 p.

Research output: Contribution to journalArticle

Sodium Hypochlorite
nickel alloys
Nickel alloys
titanium alloys
Titanium alloys
15 Citations (Scopus)

Fracture of Ni-Ti superelastic alloy under sustained tensile load in physiological saline solution containing hydrogen peroxide

Yokoyama, K., Ogawa, T., Fujita, A., Asaoka, K. & Sakai, J., 2007 Sep 1, In : Journal of Biomedical Materials Research - Part A. 82, 3, p. 558-567 10 p.

Research output: Contribution to journalArticle

Sodium Chloride
Hydrogen peroxide
Hydrogen Peroxide
Corrosion
Sodium chloride
7 Citations (Scopus)

Fracture of sustained tensile-loaded Sn-3.0Ag-0.5Cu solder alloy in NaCl solution

Yokoyama, K., Tsuji, D. & Sakai, J., 2011 Oct, In : Corrosion Science. 53, 10, p. 3331-3336 6 p.

Research output: Contribution to journalArticle

Soldering alloys
Crack propagation
Creep
Dissolution
Ions
10 Citations (Scopus)

Fracture of sustained tensile-loaded Ti-0.2% Pd alloy in acid and neutral fluoride solutions

Yokoyama, K., Ogawa, T., Asaoka, K. & Sakai, J., 2006 Mar 15, In : Materials Science and Engineering A. 419, 1-2, p. 122-130 9 p.

Research output: Contribution to journalArticle

Fluorides
fluorides
Acidulated Phosphate Fluoride
acids
Acids
5 Citations (Scopus)

Free subgroups of free complete products

Conner, G. & Eda, K., 2002 Apr 15, In : Journal of Algebra. 250, 2, p. 696-708 13 p.

Research output: Contribution to journalArticle

Subgroup
5 Citations (Scopus)

Free subgroups of the fundamental group of the Hawaiian earring

Eda, K., 1999 Sep 15, In : Journal of Algebra. 219, 2, p. 598-605 8 p.

Research output: Contribution to journalArticle

Fundamental Group
Subgroup
20 Citations (Scopus)

Free σ-products and fundamental groups of subspaces of the plane

Eda, K., 1998, In : Topology and its Applications. 84, 1-3, p. 283-306 24 p.

Research output: Contribution to journalArticle

Euclidean plane
Free Product
Fundamental Group
Homomorphism
Isomorphic