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Hokkaido University Collection of Scholarly and Academic Papers (53.962 recursos)
HUSCAP (Hokkaido University Collection of Scholarly and Academic Papers) contains peer-reviewed journal articles, proceedings, educational resources and any kind of scholarly works of Hokkaido University.

Mostrando recursos 1 - 20 de 234

1. Timesaving techniques for decision of electron–molecule collisions in Monte Carlo simulation of electrical discharges - Sugawara, Hirotake; Mori, Naoki; Sakai, Yosuke; Suda, Yoshiyuki
Techniques to reduce the computational load for determination of electron–molecule collisions in Monte Carlo simulations of electrical discharges have been presented.

2. Topology Optimization Based on Immune Algorithm and Multigrid Method - Watanabe, K.; Campelo, F.; Igarashi, H.
This paper describes topology optimization of electromagnetic systems using the multigrid method.

3. Effect of a MgO interlayer on the structural and magnetic properties of Co[sub 2]Cr[sub 0.6]Fe[sub 0.4]Al thin films epitaxially grown on GaAs substrates - Yano, T.; Uemura, T.; Matsuda, K.-i.; Yamamoto, M.
The effect of a MgO interlayer on the structural and magnetic properties of Co2Cr0.6Fe0.4Al (CCFA) thin films epitaxially grown on GaAs substrates by sputtering was investigated.

4. Design of effectively single-mode air-core photonic bandgap fiber with improved transmission characteristics for the realization of ultimate low loss waveguide - Murao, Tadashi; Saitoh, Kunimasa; Florous, Nikolaos J.; Koshiba, Masanori
In this paper, we study the novel propagation properties of an improved triangular-type air-core photonic bandgap fiber (PBGF) structured with an anti-resonant silica core surround, through a full-vector modal solver based on the finite-element method (FEM).

5. CMOS Smart Sensor for Monitoring the Quality of Perishables - Ueno, K.; Hirose, T.; Asai, T.; Amemiya, Y.
We developed a CMOS integrated-circuit sensor to monitor the change in quality of perishables that depends on surrounding temperatures.

6. Numerical Modeling of Cryogenic Temperature Sensors Based on Plasmonic Oscillations in Metallic Nanoparticles Embedded Into Photonic Crystal Fibers - Florous, Nikolaos John; Saitoh, Kunimasa; Koshiba, Masanori
We perform a numerical investigation on the operation of an inline temperature sensor based on the inclusion of metallic nanoparticles into photonic crystal fibers (PCFs).

7. Changes in the spontaneous calcium oscillations for the development of the preconditioning-induced ischemic tolerance in neuron/astrocyte co-culture. - Tanaka, Motoki; Kawahara, Koichi; Kosugi, Tatsuro; Yamada, Takeshi; Mioka, Tetsuo
Here we investigated whether and how the dynamics of Ca2+ oscillations changed after sublethal preconditioning (PC) for PC-induced ischemic tolerance in neuron/astrocyte co-cultures.

8. A Wide-Dynamic-Range Compression Image Sensor With Negative-Feedback Resetting - Ikebe, M.; Saito, K.
A CMOS image sensor capable of wide-dynamic-range compression is proposed.

9. Fabrication of Fully Epitaxial Co2Cr0.6Fe0.4Al/MgO/Co2Cr0.6Fe0.4Al Magnetic Tunnel Junctions - Marukame, T.; Ishikawa, T.; Hakamata, S.; Matsuda, K.-I.; Uemura, T.; Yamamoto, M.
Fully epitaxial magnetic tunnel junctions (MTJs) of Co2Cr0.6Fe0.4Al (CCFA)/MgO/CCFA with exchange biasing were fabricated.

10. Four-State Magnetoresistance in Epitaxial CoFe-Based Magnetic Tunnel Junctions - Uemura, T.; Marukame, T.; Matsuda, K.; Yamamoto, M.
A four-state magnetic random access memory (MRAM) was developed using an epitaxial Co50Fe50-MgO-Co50Fe 50 magnetic tunnel junction (MTJ) with a tunnel magnetoresistance (TMR) ratio of 145% at room temperature (RT).

11. Crossover between Lévy and Gaussian regimes in first-passage processes - Inoue, Jun-ichi; Sazuka, Naoya
Our method is applicable not only to the Wiener process but also to the non-Gaussian Lévy flights or to more complicated stochastic processes whose distributions are stable.

12. ??????????I???? ?????2007 - ??, ??
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13. 3D topology optimization using an immune algorithm - Campelo, Felipe; Watanabe, Kota; Igarashi, Hajime
Purpose: The paper introduces an evolutionary algorithm based on the artificial immune systems paradigm for topology optimization (TO) in 3D.

14. 2007?? ?????????? - ??, ??; Inoue, Jun-ichi
2007???????????4??????????????????????????????????????????????????????5??(2003-2007).

15. Incremental Leaning and Model Selection for Radial Basis Function Network through Sleep - Yamauchi, Koichiro; Hayami, Jiro
Especially in terms of getting the compact model, neural networks usually outperform other kinds of machine learning methods.

16. Structural and electromagnetic characterizations of Fe-SrF2 granular films - Hosoya, H.; Arita, M.; Hamada, K.; Takahashi, Y.; Higashi, K.; Oda, K.; Ueda, M.
We investigate composite Fe–SrF2 films to explore new materials showing the granular-type tunnelling magnetoresistance (TMR) effect.

17. Magnetic and Transport Properties of Nb/PdNi Bilayers - Matsuda, Ken-ichi; Niwa, Hirotaka; Akimoto, Yosuke; Uemura, Tetsuya; Yamamoto, Masafumi
We investigated the superconducting proximity effectin both Nb(35 nm)/PdNi superconductor (S)-ferromagnet (F) bilayer and Nb–Nb(10 nm)/PdNi–Nb (S–SF–S) variable-thickness bridges (VTBs).

18. HTS split open-ring resonators with improved power-handling capability for reaction-type transmitting filters - Futatsumori, S.; Hikage, T.; Nojima, T.; Akasegawa, A.; Nakanishi, T.; Yamanaka, K.
Resonator structures to achieve high-unloaded Q-factors and low radiation as well as low surface current densities in the passband are numerically investigated for 5 GHz band operation.

19. Realistic Design of Large-Hollow-Core Photonic Band-Gap Fibers With Suppressed Higher Order Modes and Surface Modes - Saitoh, Kunimasa; Florous, Nikolaos John; Murao, Tadashi; Koshiba, Masanori
This paper theoretically describes effective suppression of higher order modes (HOMs) in realistic large-hollow-core photonic band-gap fibers (PBGFs) and utilizes the use of this class of waveguides for low-loss data-transmission applications and high-power beam delivery systems.

20. Photonic Bandgap Fiber Filter Design Based on Nonproximity Resonant Coupling Mechanism - Saitoh, Kunimasa; Florous, Nikolaos; Murao, Tadashi; Varshney, Shailendra; Koshiba, Masanori
The possibility of designing compact ultranarrow bandpass filters based on the phenomenon of nonproximity resonant tunneling in multicore photonic bandgap fibers is proposed and numerically demonstrated in this investigation by making use of versatile algorithms based on the finite-element method.

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