Mizunuma, K., Ikeda, S., Park, J. H., Yamamoto, H., Gan, H., Miura, K., ...
The authors studied an effect of ferromagnetic (Co20Fe60B20 or Fe) layer insertion on tunnel magnetoresistance (TMR) properties of MgO-barrier magnetic tunnel junctions (MTJs) with CoFe/Pd multilayer...
Properties of electron swarms in CF3I (2009)
Hasegawa, H., Date, H., Shimozuma, M., Itoh, H.
We report the electron swarm parameters, the drift velocity, and the ionization coefficients in CF3I gas for relatively wide ranges of reduced electric fields (E/N). The drift velocity is measured...
Reduction of the incoherent $\gamma d \to \phi p n$ photoproduction near threshold (2009)
Chang, W. C., Miyabe, M., Nakano, T., Ahn, D. S., Ahn, J. K., Akimune, H., ...
We report measurements of differential cross sections and decay asymmetries of incoherent $\phi$-meson photoproduction from the deuteron at forward angles using linearly-polarized photons at...
Time-of-flight observation of electron swarm in methane (2009)
Hasegawa, H., Date, H., Yoshida, K., Shimozuma, M.
This paper reports on the evolution of an isolated electron swarm, which is experimentally observed as spatial distributions at every moment. This observation is assumed to directly correspond to the...
Lavraud, B., Borovsky, J. E., Génot, V., Schwartz, S. J., Birn, J., Fazakerley, A. N., ...
When the solar wind Mach number is low, typically such as in magnetic clouds, the physics of the bow shock leads to a downstream ion-to-electron temperature ratio that can be notably lower than...
Lavraud, B., Borovsky, J. E., Génot, V., Schwartz, S. J., Birn, J., Fazakerley, A. N., ...
When the solar wind Mach number is low, typically such as in magnetic clouds, the physics of the bow shock leads to a downstream ion-to-electron temperature ratio that can be notably lower than...
Evidence of the \Theta^+ in the \gamma d \to K^+K^-pn reaction (2008)
Nakano, T., Muramatsu, N., Ahn, D. S., Ahn, J. K., Akimune, H., Asano, Y., ...
The \gamma d \to K^+K^-pn reaction has been studied to search for the evidence of the \Theta^+ by detecting K^+K^- pairs at forward angles. The Fermi-motion corrected nK^+ invariant mass distribution...
L Ding, M Sudakov, Fl Brancia, R Giles, S Kumashiro, J. Mass Spectrom, ...
Driven by a digital waveform and using frequency scan, the digital ion trap mass spectrometer provides wide mass scan range and yet very high mass resolution[1]. Here, the digital waveform is...
A SEMI AUTOMATIC ROAD EXTRACTION METHOD FOR ALOS SATELLITE IMAGERY (2008)
A semi automatic road extraction method has been constructed and evaluated. Our purpose is to obtain 1/25,000 level road data from PRISM image. PRISM is panchromatic, three views, and the 2.5m...
Low-lying Proton Intruder State in 13B (2008)
Ota, S., Shimoura, S., Iwasaki, H., Kurokawa, M., Michimasa, S., Aoi, N., ...
The neturon rich nucleus 13B was studied via the proton transfer reaction 4He(12Be,13B \gamma) at 50AMeV. The known 4.83-MeV excited state was strongly populated and its spin and parity were assigned...
Interleaved Waveband MUX/DEMUX Developed on Single Arrayed-Waveguide Grating (2008)
Kakehashi, S., Hasegawa, H., Sato, K., Moriwaki, O.
We propose a novel interleaved waveband MUX/DEMUX developed on a single AWG. The device configuration is very simple and resolves the major difficulties raised by the previously proposed concatenated...
Transient and localized processes in the magnetotail: a review (2008)
Sharma, A. S., Nakamura, R., Runov, A., Grigorenko, E. E., Hasegawa, H., Hoshino, M., ...
Many phenomena in the Earth's magnetotail have characteristic temporal scales of several minutes and spatial scales of a few Earth radii (RE). Examples of such transient and localized mesoscale...
Transient and localized processes in the magnetotail: a review (2008)
Sharma, A. S., Nakamura, R., Runov, A., Grigorenko, E. E., Hasegawa, H., Hoshino, M., ...
Many phenomena in the Earth's magnetotail have characteristic temporal scales of several minutes and spatial scales of a few Earth radii (RE). Examples of such transient and localized mesoscale...
Ionization and excitation collision processes of electrons in liquid water (2007)
Date, H., Sutherland, K. L., Hasegawa, H., Shimcizurna, M.
This paper reports on Monte Carlo simulations of electrons in liquid water using a set of electron collision cross-sections constructed with data published recently. The track history of electrons...
Performance of Waveband MUX/DEMUX Using Concatenated AWGs (2007)
Kakehashi, S., Hasegawa, H., Sato, K., Moriwaki, O., Kamei, S., Jinnouchi, Y., ...
Recently, we proposed a new waveband multi/demultiplexer that uses two concatenated arrayed-waveguide gratings. We fabricate the device using silica planar lightwave circuit technology and...
Cluster observations of a field aligned current at the dawn flank of a bursty bulk flow (2007)
Snekvik, Kristian, Haaland, Stein, Østgaard, Nikolai, Hasegawa, H., Nakamura, R., Takada, T., ...
This article describes observations of a bursty bulk flow (BBF) in the outer central plasma sheet. The observations are made with the Cluster satellites, located approximately 19RE downtail, close to...
Quasi-Dynamic Network Design Considering Different Service Holding/Contract Terms (2007)
Kanie, K., Hasegawa, H., Sato, K.
We present a quasi-dynamic multi-layered photonic network design algorithm that achieves cost-effective incremental network expansion to accommodate future broadband services. It is demonstrated that...
Kakehashi, S., Hasegawa, H., Sato, K., Moriwaki, O., Kamei, S., Jinnouchi, Y., ...
Recently we proposed a new waveband MUX/DEMUX that uses two concatenated AWGs. We formulate how to connect the two AWGs. We fabricate the device using silica PLC technology and experimentally confirm...
Cluster observations of a field aligned current at the dawn flank of a bursty bulk flow (2007)
Snekvik, K., Haaland, S., Østgaard, N., Hasegawa, H., Nakamura, R., Takada, T., ...
Cluster observations of a field aligned current at the dawn flank of a bursty bulk flow (2007)
Snekvik, K., Haaland, S., Østgaard, N., Hasegawa, H., Nakamura, R., Takada, T., ...
This article describes observations of a bursty bulk flow (BBF) in the outer central plasma sheet. The observations are made with the Cluster satellites, located approximately 19 RE downtail, close...
Cluster observations of a field aligned current at the dawn flank of a bursty bulk flow (2007)
Snekvik, K., Haaland, S., Østgaard, N., Hasegawa, H., Nakamura, R., Takada, T., ...
This article describes observations of a bursty bulk flow (BBF) in the outer central plasma sheet. The observations are made with the Cluster satellites, located approximately 19 RE downtail, close...
Simulation studies of positron acceleration by a shock wave (2006)
OHSAWA, YUKIHARU, KATO, K., HASEGAWA, H.
Using a relativistic electromagnetic particle code, we investigate positron acceleration in a shock wave propagating obliquely to an external magnetic field B0 in an electron-positron-ion plasma....
Kasai, S., Kotani, J., Hashizume, T., Hasegawa, H.
Gate control properties together with gate leakage currents in AlGaN/GaN HFETs with nm-scale Schottky gates were investigated focusing on effects of AlGaN surfaces at the gate periphery. Fabricated...
The structure of flux transfer events recovered from Cluster data (2006)
Hasegawa, H., Sonnerup, B. U. Ö., Owen, C. J., Klecker, B., Paschmann, G., Balogh, A., ...
Scattering studies of novel degradable block copolymers of strong segregation class (2006)
Takenaka, M, Mukawa, N, Akasaka, S, Nishitsuji, S, Hasegawa, H, Takeda, T, ...
Keiling, A., Fujimoto, M., Hasegawa, H., Honary, F., Sergeev, V., Semenov, V. S., ...
Simultaneous measurements from the Cluster spacecraft and several ground stations (SAMNET, IMAGE, Kakioka, Hermanus) provide evidence for an association of Pi2 pulsations and pulsed reconnection in...
The structure of flux transfer events recovered from Cluster data (2006)
Hasegawa, H., Sonnerup, B. U. Ö., Owen, C. J., Klecker, B., Paschmann, G., Balogh, A., ...
The structure and formation mechanism of a total of five Flux Transfer Events (FTEs), encountered on the equatorward side of the northern cusp by the Cluster spacecraft, with separation of ~5000 km,...
Keiling, A., Fujimoto, M., Hasegawa, H., Honary, F., Sergeev, V., Semenov, V. S., ...
Simultaneous measurements from the Cluster spacecraft and several ground stations (SAMNET, IMAGE, Kakioka, Hermanus) provide evidence for an association of Pi2 pulsations and pulsed reconnection in...
The structure of flux transfer events recovered from Cluster data (2006)
Hasegawa, H., Sonnerup, B. U. Ö., Owen, C. J., Klecker, B., Paschmann, G., Balogh, A., ...
The structure and formation mechanism of a total of five Flux Transfer Events (FTEs), encountered on the equatorward side of the northern cusp by the Cluster spacecraft, with separation of ~5000 km,...
Measurement of electron transport coefficients in tetramethylsilane vapour (2005)
K. Yoshida, S. Mori, Y. Kishimoto, H. Ohuchi, H. Hasegawa, M. Shimozuma, ...
Kumakura, K., Makimoto, T., Kobayashi, N., Hashizume, T., Fukui, T., Hasegawa, H., ...
We investigated the minority carrier diffusion length in p- and n-GaN by performing electron-beam-induced current measurements of GaN p–n junction diodes. Minority electron diffusion length in...
Optimal reconstruction of magnetopause structures from Cluster data (2005)
Hasegawa, H., Sonnerup, B. U. Ö., Klecker, B., Paschmann, G., Dunlop, M. W., Rème, H.
Survey of enregetic O+ ions near the dayside mid-latitude magnetopause with Cluster (2005)
Bouhram, M., Klecker, B., Paschmann, G., Haaland, S., Hasegawa, H., Blagau, A., ...
Characteristics of the near-tail dawn magnetopause and boundary layer (2005)
Paschmann, G., Haaland, S., Sonnerup, B. U. O., Hasegawa, H., Georgescu, E., Klecker, B., ...
Effects of 3D median filter for visualization of 3D-reconstructed data in electron tomography (2005)
Energy shift of electronic X-rays emitted from pionic atoms (2005)
Ninomiya, K, Sugiura, H, Kasamatsu, Y, Kikunaga, H, Kinoshita, N, Tani, Y, ...
Characteristics of the near-tail dawn magnetopause and boundary layer (2005)
Paschmann, G., Haaland, S., Sonnerup, B. U. Ö., Hasegawa, H., Georgescu, E., Klecker, B., ...
The paper discusses properties of the near-tail dawnside and boundary layer, as obtained from Cluster plasma and magnetic field measurements during a single skimming orbit on 4 and 5 July 2001 that...
Survey of energetic O+ ions near the dayside mid-latitude magnetopause with Cluster (2005)
Bouhram, M., Klecker, B., Paschmann, G., Haaland, S., Hasegawa, H., Blagau, A., ...
Since December 2000, the Cluster satellites have been conducting detailed measurements of the magnetospheric boundaries and have confirmed the unambiguous presence of ions of terrestrial origin (e.g....
Optimal reconstruction of magnetopause structures from Cluster data (2005)
Hasegawa, H., Sonnerup, B. U. Ö., Klecker, B., Paschmann, G., Dunlop, M. W., Rème, H.
The Grad-Shafranov (GS) reconstruction technique, a single-spacecraft based data analysis method for recovering approximately two-dimensional (2-D) magnetohydrostatic plasma/field structures in...
Characteristics of the near-tail dawn magnetopause and boundary layer (2005)
Paschmann, G., Haaland, S., Sonnerup, B. U. Ö., Hasegawa, H., Georgescu, E., Klecker, B., ...
The paper discusses properties of the near-tail dawnside and boundary layer, as obtained from Cluster plasma and magnetic field measurements during a single skimming orbit on 4 and 5 July 2001 that...
Survey of energetic O+ ions near the dayside mid-latitude magnetopause with Cluster (2005)
Bouhram, M., Klecker, B., Paschmann, G., Haaland, S., Hasegawa, H., Blagau, A., ...
Since December 2000, the Cluster satellites have been conducting detailed measurements of the magnetospheric boundaries and have confirmed the unambiguous presence of ions of terrestrial origin (e.g....
Optimal reconstruction of magnetopause structures from Cluster data (2005)
Hasegawa, H., Sonnerup, B. U. Ö., Klecker, B., Paschmann, G., Dunlop, M. W., Rème, H.
The Grad-Shafranov (GS) reconstruction technique, a single-spacecraft based data analysis method for recovering approximately two-dimensional (2-D) magnetohydrostatic plasma/field structures in...
Kasai, S., Yumoto, M., Sato, T., Hasegawa, H.
This paper discusses feasibility of design and future implementation of ultrasmall-size and ultra-low-power digital logic systems by a hexagonal BDD (binary-decision diagram) quantum circuit...
Haaland, S. E., Sonnerup, B. U. Ö., Dunlop, M. W., Balogh, A., Georgescu, E., Hasegawa, H., ...
In this paper, we use Cluster data from one magnetopause event on 5 July 2001 to compare predictions from various methods for determination of the velocity, orientation, and thickness of the...
Hasegawa, H., Sonnerup, B. U. Ö., Dunlop, M. W., Balogh, A., Haaland, S. E., Klecker, B., ...
A recently developed technique for reconstructing approximately two-dimensional (?/?z0), time-stationary magnetic field structures in space is applied to two magnetopause traversals on the dawnside...
Haaland, S. E., Sonnerup, B. U. Ö., Dunlop, M. W., Balogh, A., Georgescu, E., Hasegawa, H., ...
In this paper, we use Cluster data from one magnetopause event on 5 July 2001 to compare predictions from various methods for determination of the velocity, orientation, and thickness of the...
Hasegawa, H., Sonnerup, B. U. Ö., Dunlop, M. W., Balogh, A., Haaland, S. E., Klecker, B., ...
A recently developed technique for reconstructing approximately two-dimensional (?/?z˜0), time-stationary magnetic field structures in space is applied to two magnetopause traversals on the dawnside...
Morphology control of tetrablock quaterpolymer. (2003)
Hasegawa, H, Takahashi, K, Hashimoto, T, Iatrou, H, Bellas, V, Hadjichristidis, N
TAKAICHI, S., MIZUHIRA, V., HASEGAWA, H., SUZAKI, T., NOTOYA, M., EJIRI, S., ...
The distribution of calcium ion (Ca-ion) was demonstrated in the mantle epithelial cells by means of two-step chemical precipitation of Ca-ion in the pulmonate snail, Euhadra hickonis....
Kasai, S., Hasegawa, H., 葛西, 誠也
A novel hexagonal binary-decision-diagram (BDD) quantum logic circuit approach for III-V quantum large scale integrated circuits is proposed and its basic feasibility is demonstrated. In this...
Okazaki, Y., Furuno, M., Kasukawa, T., Adachi, J., Bona, H., Kondo, S., ...
Only a small proportion of the mouse genome is transcribed into mature messenger RNA transcripts. There is an international collaborative effort to identify all full-length mRNA transcripts from the...
Okazaki, Y., Furuno, M., Kasukawa, T., Adachi, J., Bona, H., Kondo, S., ...
Only a small proportion of the mouse genome is transcribed into mature messenger RNA transcripts. There is an international collaborative effort to identify all full-length mRNA transcripts from the...
Okazaki, Y., Furuno, M., Kasukawa, T., Adachi, J., Bona, H., Kondo, S., ...
Only a small proportion of the mouse genome is transcribed into mature messenger RNA transcripts. There is an international collaborative effort to identify all full-length mRNA transcripts from the...
Surface Passivation of AlGaN/GaN Heterostructures Using an Ultrathin Al2O3 Layer (2001)
Ootomo, S., Hashizume, T., Hasegawa, H., 橋詰, 保
Published in physica status solidi (a), 2001, Wiiley-VCH Verlag GmbH & Co. KGaA, Weinheim
Yong, Gui Xie., Kasai, S., Takahashi, H., Chao, Jiang., Hasegawa, H., 葛西, 誠也
A novel InGaAs/InAlAs insulated gate pseudomorphic HEMT (IG-PHEMT) utilizing a silicon interface control layer (Si ICL) was successfully fabricated and its DC and RF performances were characterized....
Conductance oscillation characteristics of a Schottky wrap-gate controlled single electron transistor (WPG SET) were investigated. The device showed a small number of high conductance peaks and they...
Result of the tests conducted by a newly developed helicopter borne gravimeter system (2001)
Segawa, J., Joseph, John E., Kusumoto, S., Ishihara, Takemi, Komazawa, M., Hasegawa, H., ...
Copyright (c) 2006-2007 Japan Science and Technology Agency
Result of the tests conducted by a newly developed helicopter borne gravimeter system (2001)
Segawa, J., Joseph, John E., Kusumoto, S., Ishihara, Takemi, Komazawa, M., Hasegawa, H., ...
Copyright (c) 2006-2007 Japan Science and Technology Agency
Microdomain-tailored crystallization kinetics of block copolymers (2001)
Chen, HL, Hsiao, SC, Lin, TL, Yamauchi, K, Hasegawa, H, Hashimoto, T
Kasai, S., Satoh, Y., Hasegawa, H.
Basic electrical properties of Schottky wrap-gate (WPG) controlled GaAs quantum wire transistors (QWTrs) and single electron transistors (SETs) are investigated to clarify their applicability to...
Water-assisted formation of micrometer-size honeycomb patterns of polymers (2000)
Karthaus, O, Maruyama, N, Cieren, X, Shimomura, M, Hasegawa, H, Hashimoto, T
A study of three-phase structures in ABC triblock copolymers (1999)
Tanaka, Y, Hasegawa, H, Hashimoto, T, Ribbe, A, Sugiyama, K, Hirao, A, ...
Magnetic and X-Ray Diffraction Studies on Dextran Iron-Oxide Magnetic Fluid (1997)
Sakamoto, I., Hasegawa, H., Hanaichi, T., Oguro, I., Maruno, S.
Two types of dextran iron-oxide complexes (ATDM and CMDM), magnetic fluid applicable to the contrast agent of magnetic resonance imaging of living body, have been synthesized without surfactant. We...
Synthesis and Characterization of Carbon-Bearing Ni(II) Ferrite (CBNF) (1997)
Sano, T., Hasegawa, H., Kojima, M., Tsuji, M., Tamaura, Y.
Carbon-bearing Ni(II)-ferrite (CBNF) was prepared by repeated decomposition of CO2 on H2-reduced Ni(II)-ferrite. The material was also characterized by Mössbauer spectra. XRD and chemical analysis....
Magnetic and X-Ray Diffraction Studies on Dextran Iron-Oxide Magnetic Fluid (1997)
Sakamoto, I., Hasegawa, H., Hanaichi, T., Oguro, I., Maruno, S.
Two types of dextran iron-oxide complexes (ATDM and CMDM), magnetic fluid applicable to the contrast agent of magnetic resonance imaging of living body, have been synthesized without surfactant. We...
Synthesis and Characterization of Carbon-Bearing Ni(II) Ferrite (CBNF) (1997)
Sano, T., Hasegawa, H., Kojima, M., Tsuji, M., Tamaura, Y.
Carbon-bearing Ni(II)-ferrite (CBNF) was prepared by repeated decomposition of CO2 on H2-reduced Ni(II)-ferrite. The material was also characterized by Mössbauer spectra. XRD and chemical analysis....
Kikuchi, K., Enari, T., Minami, S., Haruki, K., Shibata, Y., Hasegawa, H., ...
We investigated the postantibiotic effects (PAEs) and the postantibiotic sub-MIC effects of benzylpenicillin on three strains of viridans streptococci isolated from infective endocarditis patients....
Carbohydrate antigens and liver metastasis in colorectal cancer (1993)
Hasegawa, H, Watanabe, M, Arisawa, Y, Teramoto, T, Kodaira, S, Kitajima, M
Splenic abscess associated with colon cancer: a case report (1993)
Kawamoto, K, Teramoto, T, Watanabe, M, Kase, S, Shatari, T, Hasegawa, H, ...
FINITE-TEMPERATURE BAND THEORY OF SURFACES AND INTERFACES OF TRANSITION METALS (1988)
We review recent developments in the theory of surfaces and interfaces based on the disordered local-moment approach proposed independently by Hubbard and Hasegawa for finite-temperature band...
FINITE-TEMPERATURE BAND THEORY OF SURFACES AND INTERFACES OF TRANSITION METALS (1988)
We review recent developments in the theory of surfaces and interfaces based on the disordered local-moment approach proposed independently by Hubbard and Hasegawa for finite-temperature band...
Hasegawa, H., Imada, A., Horiuchi, A., Nishii, Y., Fukushima, M., Kurokawa, E.
The pharmacokinetics of cefotaxime were studied in 13 patients on haemodialysis or continuous ambulatory peritoneal dialysis (CAPD). One gram of cefotaxime was administered intravenously or...
ELECTRONIC STRUCTURE OF FERROMAGNETIC ALLOYS IN THE COHERENT POTENTIAL APPROXIMATION (1971)
The coherent potential approximation is applied to Ni1-xFex and Ni1-xMnx on the basis of a single band model. The exchange energy is taken into account within the framework of the Hartree-Fock...
Hasegawa, H., Tran Van Hoa, Valenzuela, R.
The HOGLEX demand system (Tran Van Hoa [10, 111) is integrable and completely general in the sense that it encompasses all other well-known demand systems in the literature on consumer behavior...
Audit of topical glyceryl trinitrate for treatment of fissure-in-ano.
Hasegawa, H., Radley, S., Morton, D. G., Dorricott, N. J., Campbell, D. J., Keighley, M. R.
PURPOSE: To clarify the clinical role of topical glyceryl trinitrate (GTN) in the management of anal fissures. PATIENTS AND METHODS: Fifty-six consecutive patients with fissure-in-ano attending a...
The effects of time delays on a telepathology user interface.
Carr, D., Hasegawa, H., Lemmon, D., Plaisant, C.
Telepathology enables a pathologist to examine physically distant tissue samples by microscope operation over a communication link. Communication links can impose time delays which cause difficulties...