Master of Science, The University of Tokyo

Doctor of Science, The University of Tokyo

fuel cell

endocrine disrupting chemicals

reaction rate constant

ultrasound

cavitation

sonoluminescence

sonochemistry

燃料電池

内分泌撹乱物質

反応速度定数

超音波

キャビテーション

ソノルミネッセンス

ソノケミストリー

Nanotechnology/Materials, Analytical chemistry

Apr. 1996
電気通信大学電気通信学部, 教授

Apr. 1990 - Mar. 1996
電気通信大学電気通信学部, 助教授

Apr. 1988 - Mar. 1990
電気通信大学電気通信学部, 講師

Feb. 1979 - Mar. 1988
電気通信大学電気通信学部, 助手

Sep. 1976 - Jan. 1979
Univ. of Texas, Austin, TX; Columbia Univ., New York, NY, Postdoctoral Res. Associate

Apr. 1976 - Aug. 1976
学術振興会, 奨励研究員

Mar. 1976
The University of Tokyo, Graduate School, Division of Science, 化学専攻

Mar. 1973
The University of Tokyo, Graduate School, Division of Science, 化学専攻

Mar. 1971
The University of Tokyo, Faculty of Science, 化学科

Nov. 1997
幹事, 日本ソノケミストリー学会, Society

Dec. 2010
第31回□超音波エレクトロニクスの基礎と応用に関するシンポジウム
超音波シンポジウム論文賞

Aug. 2008
日本工学教育協会
日本工学教育協会賞

Cellular Automata for Electrochemistry. Models of Fast Catalytic Reactions
Shigeo Hayashi
ELECTROCHEMISTRY, ELECTROCHEMICAL SOC JAPAN, 81, 12, 961-965, Dec. 2013, Peer-reviwed, One-dimensional electrochemical cellular automaton (1D-ECA) has been extended so that the boundary, or electrode, can act as a catalyst, allowing for intermediate short-lived adsorbates to be transformed to and from the chemical species existing in the adjacent region within the electrolytic solution. Cyclic voltammograms have been calculated for typical sets of parameter values corresponding to fast surface reactions. (C) The Electrochemical Society of Japan, All rights reserved.
Scientific journal, English

Cellular Automata for Electrochemistry. Sweep Rate
Shigeo Hayashi
ELECTROCHEMISTRY, ELECTROCHEMICAL SOC JAPAN, 81, 9, 688-690, Sep. 2013, Peer-reviwed, The sweep rate for cyclic voltammetry has been shown to be unequivocally the ratio of the incremental potential Delta E to the number of iterations during the potential change N-step within the framework of one-dimensional electrochemical cellular automaton. Unifying the diffusion and the electron transfer fixes the magnitude of time step delta t that corresponds to one iterative cycle. Depending on the rate of electron transfer, the values of delta t may range from microseconds to milliseconds for ordinary values of the diffusion coefficient. (c) The Electrochemical Society of Japan, All rights reserved.
Scientific journal, English

Cellular Automata for Electrochemistry. Peak Potential Separation Shigeo HAYASHI
Shigeo Hayashi
ELECTROCHEMISTRY, ELECTROCHEMICAL SOC JAPAN, 81, 4, 269-271, Apr. 2013, Peer-reviwed, Electrochemical one-dimensional two-component cellular automata have been tested as to how peak potential separation is related to the parameters corresponding to the electron transfer rate and the sweep rate. Limiting behavior toward 60 mV has been observed, which is consistent with the conventional analytical calculations, and is discussed from the view point of Nernstian limits of the present model. (C) The Electrochemical Society of Japan, All rights reserved.
Scientific journal, English

Cellular Automata for Electrochemistry. A Practical Approach to the Understanding of Voltammograms
Shigeo Hayashi
ELECTROCHEMISTRY, ELECTROCHEMICAL SOC JAPAN, 81, 1, 16-18, Jan. 2013, Peer-reviwed, One-dimensional multicomponent cellular automata, with the addition of a reactive boundary, can model electrochemical processes such as cyclic voltammetry. Electron transfer probabilities at the boundary are derived from the Butler-Volmer type kinetic equation. The model is applied successfully to coupled irreversible systems in which an escaping species is involved in addition to oxidized and reduced species. (c) The Electrochemical Society of Japan, All rights reserved.
Scientific journal, English

Sonochemical preparation of fuel cell catalysts and its characterization based on electrochemical and electron microscopic methods
K.-I. Nakayama; T. Yoshii; Y. Sakakibara; S.-I. Hatanaka; S. Hayashi
Proc. of IWMST 2012, 296-299, Aug. 2012
International conference proceedings, English

Sonoluminescence of Alkali-Metal Atoms in Sulfuric Acid: Comparison with That in Water
Shin-ichi Hatanaka; Shigeo Hayashi; Pak-Kon Choi
JAPANESE JOURNAL OF APPLIED PHYSICS, JAPAN SOC APPLIED PHYSICS, 49, 7, 07HE01, 2010, Peer-reviwed, Intense orange Na* emission was observed in different spatial locations from blue emission during multibubble sonoluminescence in sulfuric acid. The color change from blue to orange was observed along the streamer in the filamentous structure of a bubble cloud. By stroboscopic observation, the Na* emission seemed to occur when a large bubble ejected tiny bubbles at the positions toward a pressure node after bubble coalescence around a pressure antinode. The intensity of Na* emission in the sulfuric acid case increased at lower frequency in contrast with the water case. By comparing a high-resolution Na* spectrum of sulfuric acid with that of water, the widths of the spectra were almost the same, except for something being superimposed in the water case. The estimations of the temperature and pressure inside the Na* emission bubbles at 28 and 150 kHz were 1900 K and 100 atm and 2200 K and 150 atm, respectively. (C) 2010 The Japan Society of Applied Physics
Scientific journal, English

Effects of dissolved gases and pH on sonolysis of 2,4-dichlorophenol
Md Helal Uddin; Shigeo Hayashi
JOURNAL OF HAZARDOUS MATERIALS, ELSEVIER SCIENCE BV, 170, 2-3, 1273-1276, Oct. 2009, Peer-reviwed, Ultrasonic degradation of 2,4-dichlorophenol (2,4-DCP) has been studied under oxygen, air, argon, and nitrogen in aqueous solutions fora liquid temperature of 20 degrees C at 489 kHz. The degradation rate increases significantly in the presence of O(2), and argon, whereas it remains the lowest under nitrogen, for which a competitive reaction model has been proposed for its non-exponential decay. Experiments have been also performed at three different pHs, 11.0, 6.3, and 2.0. The significant degradation has been achieved at pH 6.3 under O(2)(0.86 x 10(-3) s(-1)), which is 1.9 and 4 times higher than acidic (pH 2.0), and basic (pH 11.0) conditions, respectively. The degradation rates have decreased in the order O(2) > Ar > air > N(2) irrespective of pH. (C) 2009 Elsevier B.V. All rights reserved.
Scientific journal, English

Effects of Aqueous Temperature on Sonolysis of Bisphenol A: Rate Constants Increasing with Temperature under Oxygen
Md Helal Uddin; Shin-ichi Hatanaka; Shigeo Hayashi
JOURNAL OF CHEMICAL ENGINEERING OF JAPAN, SOC CHEMICAL ENG JAPAN, 42, 4, 303-308, 2009, Peer-reviwed, Sonolysis of bisphenol A (BPA), a representative endocrine disrupting chemical, has been studied at different temperatures ranging from 5 to 70 degrees C in aqueous solutions under various gases at 489 kHz. The degradation rate constant increased significantly with temperature under O(2) and air up to 50 degrees C and 30 degrees C, respectively. In this temperature range, the rate constants for O(2) and air were significantly higher than those for Ar and N(2), under which they hardly changed with temperature. The degradation rate constants decreased in the order O(2) > air > Ar > N(2). These results are in contrast with the thermal theory of sonochemistry. By adding tert-butanol as an OH radical scavenger, the degradation rate decreased significantly, revealing that OH radical reactions are responsible for the temperature effects on BPA sonolysis.
Scientific journal, English

High-intensity Na* emission during multibubble sonoluminescence in sulfuric acid
Shin-ichi Hatanaka; Shigeo Hayashi; Shogo Abe; Pak-Kon Choi
Nonlinear Acoustics-Fundamentals and Applications, 18th International Symposium on Nonlinear Acoustics, AIP Conference Proceedings, 1022, 205-208, Jul. 2008
International conference proceedings, English

ディベートを活用した技術者倫理の実践的教育方法の教育効果について
高野倉 雅人; 林 茂雄
工学教育, Japanese Society for Engineering Education, 56, 2, 8-13, 2008, Peer-reviwed, The educational effects of practical education using a debate exercise are investigated using questionnaires. For the group-work composed of discussion and debate, students understand thoroughly various engineering ethical topics, such as factors preventing ethical decision-making. Students enhance their abilities to make a rational and logical decision by themselves such as a judgment based on correct information. Mutual evaluation by students through group interaction elevates positive educational effects. However, students answer fewer questions related to the understanding of professional duties and cooperate social responsibility because of the group-work using failure cases. Students also show less progress in their abilities to communicate with others and to express their opinions to audiences. A more suitable number of group members solves the latter problem.
Scientific journal, Japanese

Sonochemical synthesis of carbon nanomaterials in water under acetylene
Shin-ichi Hatanaka; Shigeo Hayashi
International Symposium of Sonochemistry and Sonoprocessing 2007 (ISSS2007), 37, Dec. 2007
International conference proceedings, English

Sonochemical Synthesis of Large Molecules in Aqueous Benzene Solutions
Yoji Shirai; Shin-ichi Hatanaka; Shigeo Hayashi
International Symposium of Sonochemistry and Sonoprocessing 2007 (ISSS2007), 98, Dec. 2007
International conference proceedings, English

Effects of Aqueous Temperature and OH Radical Scavnger on Sonolysis of Bisphenol A
M. Helal Uddin; Shin-ichi Hatanaka; Shigeo Hayashi
International Symposium of Sonochemistry and Sonoprocessing 2007 (ISSS2007), 121, Dec. 2007
International conference proceedings, English

ディベートを活用した技術者倫理の実践的教育
高野倉 雅人; 林 茂雄
工学教育, Japanese Society for Engineering Education, 55, 5, 40-47, 2007, Peer-reviwed, Based on the case-method, an exercise using debate is proposed for practical education in engineering ethics. The exercise is performed as a group-work composed of discussion and debate. This paper describes design concepts and discusses the methodology of the group-work for enhancing educational effects based on the result of a questionnaire. The author proposes a feasible model plan for implementation of two debates in 90-minute class : five minutes allotted for constructive and rebuttal speeches, four minutes for cross examinations, and eight minutes for preparation time. The adequate number of group members and the minimum required time of discussion are also proposed.
Scientific journal, Japanese

Mechanism of O-2-accelerated sonolysis of bisphenol A
Masaki Kitajima; Shin-Ichi Hatanaka; Shigeo Hayashi
ULTRASONICS, ELSEVIER SCIENCE BV, 44, E371-E373, Dec. 2006, Peer-reviwed, The effects of dissolved gases on the sonochemical degradation of bisphenol A ( BPA) were studied at a frequency of 500 kHz. BPA degradation rate increased in the order O-2 > Ar > air > N-2. The rate constant for oxygen ( 2.6 h(-1)) was approximately two fold higher than that for argon ( 1.2 h(-1)). A primary intermediate ( 2,3- dihydro- 2- methylbenzofuran), a typical intermediate of BPA formed during attack by .OH radicals, was detected only in the presence of oxygen, revealing that a different reaction path was responsible for the enhancement of decomposition. (c) 2006 Elsevier B. V. All rights reserved.
Scientific journal, English

Sonoluminescing single bubble in concentrated alkali halide solutions
Shigeo Hayashi; Kenji Nozaki; Shin-Ichi Hatanaka
ULTRASONICS, ELSEVIER SCIENCE BV, 44, E431-E433, Dec. 2006, Peer-reviwed, Single-bubble sonoluminescence is generated in concentrated aqueous solutions of LiBr and LiCl. The moving-bubble state, a type of unstable state in which sonoluminescence is still emitted, is observed above the stable-sonoluminescence state similarly to that in aqueous solutions of NaCl and KCl. Luminosity is increased at similar magnitudes for LiBr, LiCl, NaCl and KCl of the same concentration. (c) 2006 Elsevier B. V. All rights reserved.
Scientific journal, English

Multibubble sonoluminescence enhancement by fluid flow
Shin-ichi Hatanaka; Hideto Mitome; Kyuichi Yasui; Shigeo Hayashi
ULTRASONICS, ELSEVIER SCIENCE BV, 44, E435-E438, Dec. 2006, Peer-reviwed, Forced fluid flow can cause the enhancement of multibubble sonoluminescence (SL) under suitable conditions. The effect of directional flow with a circulator is similar to that of rotating flow with a stirrer. The mechanism of the enhancement is that both flows prevent cavitation bubbles from coalescing and clustering, which are responsible for the quenching of SL. The intensity of sonochemiluminescence (SCL) in an aqueous luminol solution increases with flow speed at higher ultrasonic powers more significantly than that of SL in distilled water. However, in the range of low ultrasonic power, the intensities of SL and SCL decrease with flow speed. Therefore, an optimum flow speed exists in relation to ultrasonic power and frequency. (c) 2006 Published by Elsevier B. V.
Scientific journal, English

Electrolysis and its hybrid methods applied to decomposition of endocrine disrupting chemicals
Naomi Takagami; Kazuhiro Ohtsuki; Shojiro Maki; Haruki Niwa; Shin-ichi Hatanaka; Shigeo Hayashi
ELECTROCHEMISTRY, ELECTROCHEMICAL SOC JAPAN, 74, 8, 599-602, Aug. 2006, Peer-reviwed, Rate constants for decomposition reaction were measured for several phenols, i.e., bisphenol A, p-chlorophenol, p-octylphenol, 2,4-dichlorophenol, p-tert-butylphenol and for two other chemicals, benzophenone and PCB compounds in waste oil. The following methods were adopted: electrolysis, photolysis, sonolysis, photolytic electrolysis, and sonolytic electrolysis. The initial concentration was fixed at 50 mg/L except for the PCB, for which the concentration for all the isomers was 500 ng/L. The solvent was water, but for chemicals with insufficient solubility, mixtures with alcohols were used. Additional application of ultrasound led to remarkable enhancement for p-chlorophenol and 2,4-dichlorophenol. The electrolysis rate constant for PCB compounds was comparable to that for the phenols. Benzophenone was decomposed 10 times as slow as the phenols partly because of the solvent containing alcohols.
Scientific journal, English

Stochastic model for observation of pulsed signals on digital oscilloscope
S Hayashi; S Hatanaka
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, JAPAN SOC APPLIED PHYSICS, 44, 12, 8708-8710, Dec. 2005, Peer-reviwed, For pulsed periodical signals with a low duty cycle and a constant height, a carelsess use of a digital oscilloscope may lead to inaccurate waveforms. This is the case particularly when pulse timing is affected by jittering. An exemplary waveform, as previously reported [N. Harba and S. Hayashi: Jpn. J. Appl. Phys. 42 (2003) 2971], is re-examined in terms of a stochastic model using colored Gaussian noise.
Scientific journal, English

Exponential rule for light-scattering sizing of bubbles or drops
S Hayashi
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, JAPAN SOC APPLIED PHYSICS, 44, 9A, 6785-6790, Sep. 2005, Peer-reviwed, Numerical calculations of Mie scattering have shown that the radius a of a bubble in water, e.g., that of a sonoluminescing one, can be given from the scattered light intensity I by a alpha I(alpha), where for vertical linear polarized light alpha is 0.44 at a scattering angle of 80 degrees and 0.48 between 90 and 100 degrees. For unpolarized light, alpha is 0.42 at 80 degrees and 0.47 between 90 and 100 degrees. This exponential relationship is found to hold in many other systems, including bubbles in organic liquids and drops in air, but the applicable range depends on refractive index and absorption. The existence of light absorption may alter the applicability of the rule significantly.
Scientific journal, English

Dynamics of single sonoluminecsing bubble in concentrated aqueous alkaline halide solutions
K Nozaki; S Hatanaka; S Hayashi
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, JAPAN SOC APPLIED PHYSICS, 43, 9A, 6481-6483, Sep. 2004, Peer-reviwed, The dynamics of a single sonoluminescing bubble in dense aqueous NaCl and KCl solutions is studied using a high-speed framing camera. Although the bubble became unstable, the luminescence intensity increased for larger driving pressures and higher concentrations. In this state, the bubble was found to split into a main sonoluminescing one and a number of daughter ones. Such unstable behavior is usually regarded as characteristic of the bubble dynamics near the lower sonoluminescience threshold of acoustic pressure, but the present finding suggests that, for dense aqueous solutions, there exists still another regime where the bubble is unstable and yet has more luminosity.
Scientific journal, English

A multibubble cluster transforming into a single sonoluminescing bubble
Shigeo Hayashi; Naser Harba
18th International Congress on Acoustics, 147, Apr. 2004
International conference proceedings, English

Dynamics of single sonoluminescencng bubble in concentrated aqueous halide solutions
Kenji Nozaki; Shin-ichi Hatanaka; Shigeo Hayashi
18th International Congress on Acoustics, 260, Apr. 2004
International conference proceedings, English

Sonoluminescing bubbles from a diffusing glycerol droplet
S Hayashi; N Harba
SLOW DYNAMICS IN COMPLEX SYSTEMS, AMER INST PHYSICS, 708, 442-443, 2004, Several air-filled drops of glycerol, injected into and trapped in the standing acoustic field within water, were found to serve as a stage for the transformation from multibubble to single-bubble sonoluminescence during ultrasound-aided diffusion of glycerol. Initially, a cluster of bubbles were formed. Its diameter was of the order of I mm, but the number of bubbles varied. The cluster eventually disapeared, leaving a single sonoluminescing bubble. The transformation process was observed using a stroboscopic telemicroscope.
International conference proceedings, English

Dust particles counteract the boosting of single-bubble sonoluminescence by glycerol droplets
N Harba; S Hayashi
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, JAPAN SOC APPLIED PHYSICS, 42, 5B, 2971-2974, May 2003, Peer-reviwed, A dusty glycerol drop injected at the antinode of acoustic standing waves in water produces single bubble sonoluminescence after glycerol has practically diffused. The bubble is dim and the sonoluminescence intensity changes from cycle to cycle. Effects of the dust particles are revealed by a telemicroscope, stroboscope, and Mie scattering. Various types of deviation from the ordinary radius-time curve are observed for Mie scattering. An outstanding example is that in which the scattering intensity alternates between two types of waveform's every 10 s while the acoustic pressure is kept fixed.
Scientific journal, English

A glycerol drop in water boosts single-bubble sonoluminescence
N Harba; S Hayashi
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, INST PURE APPLIED PHYSICS, 42, 2A, 716-720, Feb. 2003, Peer-reviwed, A glycerol drop injected at the antinode of standing acoustic waves in pure water is found to diffuse nearly isotropically, leaving a stable sonoluminescing bubble. The dynamics of such a bubble is significantly different from that of an ordinary sonoluminescing bubble in pure water. The bubble rebounds are enlarged but the emission intensity becomes approximately 10% stronger if the driving conditions are unaltered. The stability upper threshold is raised by 2%, at which 40% more sonoluminescence is produced during a stable period. The bubble then experiences a jiggling period, giving rise to rebounds with anomalous spikes as revealed by Mie light scattering. The spikes may be accounted for by fragmentation due to parametric instability.
Scientific journal, English

Electrolysis-assisted single-bubble sonoluminescence in chlorine-doped water
Shigeru Hayashi; Shigeo Hayashi
Ultrasonics Sonochemistry, 9, 2, 79-84, 2002, Peer-reviwed, Seeding bubbles for sonoluminescing single bubbles were created by direct-current electrolysis in 0.1 mol/l-aqueous solutions of potassium chloride for chlorine and potassium nitride for hydrogen. Compared with bubbles in air- and hydrogen-doped water, a bubble in chlorine-doped water evaded trapping in the acoustic field, but it could give luminescence intermittently only for 5-15 s. The luminescence of the bubble in chlorine-doped water was barely discernible to the naked eye, whereas that in hydrogen-doped water was a little brighter than that in air-doped water. © 2002 Elsevier Science B.V. All rights reserved.
Scientific journal, English

Double scattering of light by a single-bubble sonoluminscing bubble and many dust particles
Shigeo Hayashi; Shunsuke Uchiyama; Naser Harba
Journal of the Physical Society of Japan, 70, 12, 3544-3549, Dec. 2001, Peer-reviwed
Scientific journal, English

Electrolysis-assisted single-bubble sonoluminescence
Shigeru Hayashi; S. Hayashi
Progress in Natural Science, 11, Suppl., S355-S359, May 2001, Peer-reviwed
International conference proceedings, English

Triboluminescence of 3,6-dibromocarbazole
W Wu; T Narisawa; S Hayashi
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, JAPAN SOC APPLIED PHYSICS, 40, 3A, 1294-1296, Mar. 2001, Peer-reviwed, 3,6-Dibromocarbazole was identified to be triboluminescent for the first time. From the triboluminescence and photoluminescence spectra, it was found that the room-temperature triboluminescence spectrum of 3,6-dibromocarbazole, unlike most other triboluminescent materials, was different from its photoluminescence spectrum at the same temperature and was composed of a weak tribofluorescence and a strong tribophosphorescence. This result can be ascribed partly to the "heavy atom effect" caused by the two bromine substituents and partly to the change in luminescence quantum yields experienced during the breakage of the crystals, Its symmetry of crystalline structure was determined to belong to the acentric space group using the method of second-harmonic generation.
Scientific journal, English

Acoustic emission from a sonoluminescing bubble
Shigeo Hayashi; Yuichiro Kato; Kenji Tanaka; Hiroshi Kobayashi
Acoustical Science and Technology, 22, 2, 129-134, 2001, Peer-reviwed, Acoustic emission from a single bubble is observed using a needle-type hydrophone and compared with Mie-scattering data. The acoustic emission is composed of two signals, i.e., pulses occuring at the moment of collapse and background emission ΔV. The average of ΔV and the maximum radius can be grouped to two types of collpase. The average power of ΔV is proportinal to or increase more rapidly than R3max. It is suggested that the background emision is associated with multipolar source of acoustic waves in which vortices surrounding the bubble play an important role.
Scientific journal, English

ソノルミネッセンス：技術から科学へ
林 茂雄
超音波応用懇談会, Oct. 2000
Japanese

Finite angnlar resolution Mie-scattering measurements of sonoluminescing bubbles
S. Hayashi
Japanese Journal of Applied Physics, 38, 11, 6562-6563, Nov. 1999, Peer-reviwed
Scientific journal, English

Self-similar renormalization approach to barrier crossing processes
AN Drozdov; S Hayashi
PHYSICAL REVIEW E, AMER PHYSICAL SOC, 60, 4, 3804-3813, Oct. 1999, Peer-reviwed, An algebraic self-similar renormalization method developed recently for summation of divergent field-theoretical series is applied to the thermally activated escape of a Brownian particle over an arbitrarily shaped barrier. Based on the Mel'nikov-Meshkov result for the underdamped Brownian motion and the inverse friction expansion of the underlying Fokker-Planck equation for strong friction, an overall rate formula is constructed. This formula agrees in the weak friction regime with the rate obtained from a diffusion equation in energy variables and, in the limiting case of strong friction with the rate following from a Smoluchowski equation. Its validity is tested for Brownian motion in bistable potentials with parabolic, cusped, and quartic barriers of different heights. The proposed formula is found to give a reasonable description of activated rate processes even though the barrier is quite low. Our comparison also includes results from various different crossover theories. In most of the cases considered the present formula is in considerably better agreement with exact numerical rates than the other interpolation formulas. [S1063-651X(99)13610-9].
Scientific journal, English

An extension of the Kramers rate theory to cusped and smooth potentials
AN Drozdov; S Hayashi
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, PHYSICAL SOCIETY JAPAN, 68, 7, 2252-2258, Jul. 1999, Peer-reviwed, The thermally activated escape of a Brownian particle over an energy barrier of arbitrary shape is considered. Based on the expansion of the underlying Fokker-Planck equation in reciprocal powers of the friction constant a rate expression is constructed. It agrees in the limiting case of high friction with the rate following from the corresponding Smoluchowski equation and, in the limit of weak friction with the rate obtained from transition state theory. Its accuracy is tested for Brownian motion over a parabolic barrier in which case we compare to the known analytic Kramers result. Applications to cusp shaped and quartic barriers show that the approximate rate expression is in very good agreement with accurate estimates of the rates from numerical simulations. An overall rate expression valid in the whole friction range is then obtained by using the Mel'nikov-Meshkov result for the underdamped Brownian motion, along with a properly defined energy loss of the particle per oscillation. Its validity is tested by comparing with exact numerical rates in a cusped double well potential.
Scientific journal, English

Generalized mean relaxation time formalism for activated rate processes without manifest detailed balance
AN Drozdov; S Hayashi
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, PHYSICAL SOC JAPAN, 68, 6, 1864-1870, Jun. 1999, Peer-reviwed, The mean relaxation time formalism employed previously in the solution of one-dimensional Fokker-Planck equations is extended to a general diffusion process in arbitrary dimensions. The utility of the approach is demonstrated by calculating analytically the rate of noise-induced transitions in a bistable system without manifest detailed balance. The rate formula obtained summarizes in a uniform manner much of what had been done before in this field. Limitations of its validity are discussed and a perturbation procedure to systematically improve it is proposed. The validity of our theoretical predictions for the rate is confirmed by comparing with exact numerical results.
Scientific journal, English

Expeimental investigation of sonoluminescing bubbles
Y. Kato; S. Hayashi; K. Tanaka; K. Kobayashi
Acta Acustica, Suppl.1（Berlin）, S151, Mar. 1999
International conference proceedings, English

Numerical test of approximate single-step propagators: Harmonic power series expansions versus system-specific split operator representations
AN Drozdov; S Hayashi
PHYSICAL REVIEW E, AMERICAN PHYSICAL SOC, 59, 2, 1386-1397, Feb. 1999, Peer-reviwed, This paper compares the efficiency and accuracy of different second-order approximations for the single-step propagator obtained by means of the power series expansion formalism and the split operator method. The former is based on a harmonic reference system, while the latter allows for the use of physically motivated (anharmonic) zeroth-order representations. Three typical examples-a system-bath Hamiltonian, a Henon-Heiles anharmonic resonating system, and a Fokker-Planck chaotic model-are considered in the present testing. The examples cover a variety of situations with strongly anharmonic coupling. Although no system-specific reference system is involved in the power series representation of the propagator, it quite accurately describes the dynamics of very anharmonic processes in the entire time domain even though the coupling is strong. Another appearing feature of the approach is that it is essentially analytical and therefore does not require any computational effort to implement. This makes the power series expansion technique particularly attractive for efficiently treating many-body problems. In contrast, numerical implementation of the split operator method can be arduous as a general multidimensional calculation, while its utility is in general restricted to the separable limit, when the coupling is almost turned off In that limit the method indeed provides accurate results over a broad range of t. With increasing coupling, however, the efficiency of the method deteriorates very rapidly regardless of the particular choice of the zeroth-order representation.
Scientific journal, English

Improved power series expansion for the time evolution operator: Application to two-dimensional systems
Alexander N. Drozdov; Shigeo Hayashi
Journal of Chemical Physics, American Institute of Physics Inc., 110, 4, 1888-1895, 22 Jan. 1999, Peer-reviwed, The power series expansion formalism is used to construct analytical approximations for the propagator of the partial differential equation of a generic type. The present approach is limited to systems with polynomial coefficients. Three typical two-dimensional examples, a Hénon-Heiles anharmonic resonating system, a system-bath Hamiltonian, and a Fokker-Planck chaotic model are considered. All results are in excellent agreement with those of an established numerical scheme in the field. It is found that the power series expansion method accurately describes the dynamics of very anharmonic processes in the whole time domain. © 1999 American Institute of Physics.
Scientific journal, English

Quantum statistics of multidimensional nonlinear oscillators
A Drozdov; S Hayashi
PROGRESS OF THEORETICAL PHYSICS, PROGRESS THEORETICAL PHYSICS PUBLICATION OFFICE, 101, 1, 25-37, Jan. 1999, Peer-reviwed, This paper presents two perturbation approaches to calculating the quantum statistics of multidimensional nonlinear oscillators in a simple, economic way. These are the power series expansion formalism and the system-specific split operator method. The former involves a harmonic reference system, while the latter allows for the use of physically motivated (anharmonic) zeroth-order representations. Both approaches are outlined with some improvements, and their possible limitations are discussed. The relative efficacy of the approaches is tested on two typical models that are often used by researchers as benchmarks for different numerical methods. Although no system-specific reference system is involved in the power series expansion of the Boltzmann operator, it quite accurately describes the quantum statistics in the entire temperature range, even though the coupling strength is rather large. Yet another important advantage of this approach is that it is essentially analytical, and therefore its numerical implementation does not require any computational effort. This makes the power series expansion technique particularly attractive for treating many-body problems. In contrast, the split operator method is found to be efficient only in the limit of separable motion. Otherwise, this approach results in a less than optimally efficient approximation for the density matrix, or even one which is worse than the standard Trotter approximation.
Scientific journal, English

Plural sonoluminescing bubbles in acoustic fields of higher mode
T Kokubun; S Hayashi; Q Han; T Kamakura
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, JAPAN J APPLIED PHYSICS, 37, 10, 5835-5838, Oct. 1998, Peer-reviwed, As many as four sonoluminescing bubbles were created in the spherical acoustic resonator driven by a pair of Langevin transducers. The bubbles were trapped symmetrically off center in the horizontal plane passing through the center of the flask. Vibrations were found to be in the aspherical mode with two nodal planes, as analyzed using a laser Doppler vibrometer. The emission spectrum, having a peak in the ultraviolet region, showed no significant structure.
Scientific journal, English

Photodissociation of iodobenzene and photoacoustic detection of the products using a dual-purpose Q-switched YAG laser
H Takekoshi; S Hayashi
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, JAPAN J APPLIED PHYSICS, 35, 5B, 2921-2924, May 1996, Peer-reviwed, The third harmonic of a Q-switched Nd:YAG laser is used to decompose iodobenzene C6H5I dissolved in benzene. Photoacoustic (PA) signals are observed simultaneously. They initially have a finite value arising not only from the solvent but also from the reaction of the radicals, C6H5 . and I ., since the quantum yield of the photodissociation is reported to be approximately 100%. The PA intensity increases with the number of laser shots since the the reaction product, iodine, forms a charge-transfer complex with the solvent, which also absorbs the laser light. From the ratio of initial PA signal to that due to the complex; the quantum yield of chemically induced PA is deduced to be less than 60%.
Scientific journal, English

ANALOG SIMULATION OF STOCHASTIC-SYSTEMS IN A METASTABLE PIECEWISE QUASI-LINEAR POTENTIAL DRIVEN BY BAND-LIMITED WHITE-NOISE
S HAYASHI
PHYSICAL REVIEW E, AMER PHYSICAL SOC, 52, 4, 3614-3622, Oct. 1995, Peer-reviwed, Stochastic dynamics in a metastable potential that is linear except for finite curvatures at the bottom and barrier top has been treated using an analog simulator. Band-limited white noise is applied and the response of the system is observed as the bandwidth is increased until the noise becomes effectively white. Supplementary computer simulations have also been carried out. In the oscillation regime, i.e., for low noise intensities, the power spectrum exhibits significant deviation from that for the harmonic oscillators. Average amplitudes of the driving force have been calibrated so that peak positions of the power spectrum may produce identical results for the two simulations. The amplitude distribution has been consistent among the analog simulation, the computer simulation, and the Boltzmann distribution. For higher noise intensities, the Arrhenius plot from the analog and computer simulations has reproduced a correct barrier height, but the pre-exponential factor is about one-sixth of that obtained from Kramers's formula.
Scientific journal, English

電池の考え方－電荷ポンプ
林 茂雄
化学と教育, The Chemical Society of Japan, 43, 10, 658-659, Oct. 1995, Peer-reviwed
Scientific journal, Japanese

DETERMINATION OF ELASTIC STIFFNESS AND PIEZOELECTRIC E-CONSTANTS AND D-CONSTANTS OF PIEZOELECTRIC CERAMIC FROM ULTRASONIC VELOCITY AND DIELECTRIC-CONSTANT
Y SASAKI; T OCHIAI; Y TAKEUCHI; S HAYASHI
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, JAPAN J APPLIED PHYSICS, 34, 8A, 4122-4123, Aug. 1995, Peer-reviwed, Ultrasonic velocities and dielectric constants were measured along different directions on the X-Z plane of a Pb(ZT(0.52)Ti(0.48))O-3 ceramic (poling direction is along the Z-axis). A complete set of values of elastic stiffness constants and piezoelectric e- and d-constants have been obtained by the least squares method from the velocities and dielectric constants.
Scientific journal, English

SONOCHEMICAL OXIDATION OF IODIDE-IONS IN SOLUTION UNDERSATURATED WITH AMBIENT GASES
H KITANO; S HAYASHI
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, JAPAN J APPLIED PHYSICS, 34, 5B, 2721-2724, May 1995, Peer-reviwed, Sonochemical oxidation of I-3(-), has been carried out in atmospheres of nitrogen, oxygen, air, and argon in the pressure range between 40 Torr and 760 Torr. The ambient gases have been dissolved by two methods: distillation and bubbling, with the former leading to undersaturation. Except for nitrogen, no simple relation exists between the reaction rates for the gas-undersaturated solutions, k(U), and those for the gas-saturated solutions, k(S). In some cases the values of k(U) are five times greater than those of k(S) in spite of the reversed order in the gas concentration.
Scientific journal, English

EFFECTS OF SINE-WAVE MODULATION ON TRACKING OF RESONANCE AND ANTIRESONANCE OF PIEZOELECTRIC RESONATOR
S HAYASHI
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, JAPAN J APPLIED PHYSICS, 34, 5A, 2502-2503, May 1995, Peer-reviwed, External signals of the form a sin 2 pi f(0)t (t greater than or equal to 0) are applied to the PLL tracking system. The experimental values of the critical amplitude a, such that the system is unstable for a > a(c) vary continuously with f(0), and are in good agreement with the values obtained by numerical analysis. Extra stability due to barrier recrossing is gained in the narrow frequency range above the characteristic frequency f(c), at which the system is the least stable. No hysteresis occurs for increasing or decreasing a. The results are free from an error in a preceding paper.
Scientific journal, English

Effects of external modulation signals on the tracking of resonance and antiresonance of piezoelectric resonatoys. II Two types of sinusoidal modulation
S. Hayashi
Japanese Journal of Applied Physics, 33, 5B, 3121-3125, May 1994, Peer-reviwed
Scientific journal, English

A PHASE-LOCKED LOOP BASED ANALOG SIMULATOR FOR A CLASS OF STOCHASTIC NONLINEAR DYNAMICS
S HAYASHI
REVIEW OF SCIENTIFIC INSTRUMENTS, AMER INST PHYSICS, 64, 11, 3258-3264, Nov. 1993, Peer-reviwed, An analog simulator has been built for such a class of second-order Langevin equations that the potential function is given by an integral of the phase angle of admittance for a piezoelectric resonator. It can be applied to the problem of noise induced escape from a potential well since the potential has a minimum at resonance frequency and a surmountable barrier at antiresonance frequency. The design is based on the phase-locked loop, and the system frequency plays a role of the random variable corresponding to the position of a particle performing a random walk. The modular design makes it possible to adapt the simulator to specific problems.
Scientific journal, English

EFFECTS OF EXTERNAL MODULATION SIGNALS ON THE TRACKING OF RESONANCE AND ANTIRESONANCE OF PIEZOELECTRIC RESONATORS
S HAYASHI
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, JAPAN J APPLIED PHYSICS, 32, 5B, 2314-2316, May 1993, Peer-reviwed, The phase-locked loop developed previously for the tracking of resonance and antiresonance of piezoelectric resonators is examined with respect to the stability against external modulation signals in the form a sin 2pif0t. A PZT resonator with f(r)=68.1 kHz and f(a)=82.3 kHz is used as a sample. The critical amplitude a(c), beyond which phase lock is lost, is measured for each value of f0. The value of a(c) increases discontinuously at a critical frequency, f(c), of 150 kHz. In the freqeuncy range between f(c) and 500 kHz hysteresis is found in the relationship between a and the width of the power spectrum. No hysteresis is found if f0<f(c). This behavior can be explained by an inhomogeneous second-order differential equation.
Scientific journal, English

On the tracking of resonance and antiresonance of a piezoelectric resonator II. Accurate models of the phase locked loop
S. Hayashi
IEEE Transactions of Ultrasonics, Ferroelectric, and Frequency Control, 39, 6, 787-790, Nov. 1992, Peer-reviwed
Scientific journal, English

誰にもできるビクトルマイヤー法
林 茂雄
化学と教育, The Chemical Society of Japan, 40, 10, 704-705, Oct. 1992, Peer-reviwed
Scientific journal, Japanese

時間分解マルチチャンネル分光システムのカスタム化
林 茂雄; 北野 博之
電気通信大学紀要, 5, 1, 61-65, Jun. 1992
Research institution, Japanese

Modula-2言語と実験室
林 茂雄
電気通信大学紀要, The University of Electro-Communications, 5, 1, 55-60, Jun. 1992
Research institution, Japanese

NOTE ON SHIMIZU-SAITOS TRACKING METHODS
S HAYASHI; Y SASAKI
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, JAPAN J APPLIED PHYSICS, 31, Suppl. 31-1, 234-236, 1992, Peer-reviwed, A flow-chart model is presented for Shimizu-Saito's resonance-tracking method which is based on rectification feedback. The model is solved numerically for a model resonator. The method is shown to be much faster than the phase-locked loop method if the values of the gain-admittance product are large, although too large values induce unstable oscillations into the system frequency.
Scientific journal, English

INTERFERENCES IN ELASTIC CHIRAL ELECTRON-SCATTERING
S HAYASHI
CHINESE JOURNAL OF PHYSICS, PHYSICAL SOC REPUBLIC CHINA, 29, 3, 233-244, Jun. 1991, Peer-reviwed, Asymmetric quantities in elastic scattering of electrons by optically active molecules, collectively denoted as A(L) and A(D), have been treated within the potential scattering model; the direct and spin-orbit interactions are partitioned by constituent atoms. In-plane components of the W(theta) function, which account for A(L,D), have been discussed from a general point of view. Interference structure will always be observed in the angular dependence of the components. Since the energy as well as angular dependence of the components are determined by interferences that are nearly destructive, the values of the components are inevitably very sensitive to approximation schemes adopted. A comparison with other interference phenomena is also made.
Scientific journal, English

ON THE TRACKING OF RESONANCE AND ANTIRESONANCE OF A PIEZOELECTRIC RESONATOR
S HAYASHI
IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 38, 3, 231-236, May 1991, Peer-reviwed, A quantitative analysis on the tracking of zero-phase resonance frequency f(r), and antiresonance frequency, f(a), which has been reported previously by the author, is presented. Integral and integrodifferential equations for the system angular frequency omega (t) are derived, and numerical calculations are carried out for a model in which the voltage-controlled oscillator is of first order and the phase angle of a piezoelectric resonator is represented by a single square-well function of omega. In order to confirm the plausibility of the model, the resulting omega(t)- and VCO input-waveforms and phase-plane trajectories are compared with the corresponding results for the exact phase angle function. Lock-in conditions and lock-acquisition time are expressed in terms of dimensionless quantities involving the difference between initial frequency and either of f(r) or f(a), the difference f(a) - f(r), the loop gain, the VCO delay time constant, and the loop filter time constant. The results are consistent with our experimental data for a sample PZT renonator.
Scientific journal, English

Rapid Tracking of Resonance and Antiresonance of a Piezoelectric Resonator
S. Hayashi; Y. Kuwabara; Y. Sasaki
Japanese Journal of Applied Physics, 29, 8, L1470-L1472, Aug. 1990, Peer-reviwed
Scientific journal, English

A VERSATILE PHOTOELASTIC-MODULATOR DRIVER CONTROLLER
S HAYASHI
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, JAPAN J APPLIED PHYSICS, 28, 4, 720-722, Apr. 1989, Peer-reviwed
Scientific journal, English

PHASE-LOCKED LOOP APPROACH TO THE AUTOMATIC-MEASUREMENT OF RESONANT AND ANTI-RESONANT FREQUENCIES OF PIEZOELECTRIC RESONATORS
S HAYASHI; Y SASAKI
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, JAPAN J APPLIED PHYSICS, 28, Suppl. 28-2, 180-183, 1989, Peer-reviwed
Scientific journal, English

ASYMMETRY IN ELASTIC-SCATTERING OF POLARIZED ELECTRONS BY OPTICALLY-ACTIVE MOLECULES
S HAYASHI
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, IOP PUBLISHING LTD, 21, 6, 1037-1054, Mar. 1988, Peer-reviwed
Scientific journal, English

MCRAES MULTIPLE-SCATTERING APPROACH EXTENDED TO ELECTRON-SCATTERING BY MOLECULES
S HAYASHI
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, IOP PUBLISHING LTD, 20, 23, 6305-6317, Dec. 1987, Peer-reviwed
Scientific journal, English

THE SPIN POLARIZATION OF ELECTRONS DUE TO DOUBLE SCATTERING BY CRYSTALS AND BY OPTICALLY-ACTIVE MOLECULES
S HAYASHI
JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, IOP PUBLISHING LTD, 19, 15, 2601-2605, May 1986, Peer-reviwed
Scientific journal, English

THE SPIN POLARIZATION OF ELECTRONS DUE TO ELASTIC INTRAMOLECULAR DOUBLE SCATTERING FROM OPTICALLY-ACTIVE MOLECULES
S HAYASHI
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, IOP PUBLISHING LTD, 18, 6, 1229-1240, 1985, Peer-reviwed
Scientific journal, English

A Waveform Reproduction Study of Time Domain Reflectometry. III. Inversion of Waveforms Reflected by a Diffuse Interface
S. Hayashi; A. Aihara
Japanese Journal of Applied Physics, 22, 10, 1533-1537, Nov. 1983, Peer-reviwed
Scientific journal, English

A Waveform Reproduction Study of Time Domain Reflectometry. I. Reflection from a Diffuse Interface between Two Miscible Layers
S. Hayashi; A. Aihara
Japanese Journal of Applied Physics, 22, 5, 645-650, May 1983, Peer-reviwed
Scientific journal, English

A Waveform Reproduction Study of Time-Domain Reflectometry. II. Quick Deterimnation of Dielectric Relaxation Time
S. Hayashi; A. Aihara
Japanese Journal of Applied Physics, 22, 5, 874-877, May 1983, Peer-reviwed
Scientific journal, English

Measurements of Differential Cross Sections of Low-Energy Electrons Elastically Scattered by Gas Molecules. II. Scattering of 200-500 eV Electrons by Molecular Oxygen
H. Daimon; S. Hayashi; T. Kondow; K. Kuchitsu
Journal of Physical Society of Japan, 51, 8, 2641-2649, Aug. 1982, Peer-reviwed
Scientific journal, English

Numerical Inversion of a Class of Laplace Transforms: exp(-s)/s and Related Functions
S. Hayashi
電気通信大学学報, The University of Electro-Communications, 32, 2, 221-226, Feb. 1982
Research institution, English

超低周波領域におけるp-ヒドロキシベンツアルデヒド結晶の誘電吸収とOHプロトンの動的挙動
藍原 有敬; 前田 修二; 岩崎 不二子; 林 茂雄
電気通信大学学報, The University of Electro-Communications, 32, 2, 213-219, Feb. 1982
Research institution, Japanese

A Random-Walk Approach to Multiple Scatterings in Coaxial Electron and Atomic Beams
S. Hayashi
電気通信大学学報, 30, 2, 205-210, Feb. 1980
Research institution, English

Crossed Molecular Beam Chemiluminescence Study of the Metastable Mercury Reaction : Hg(^3^P_0_)+Br_2_→HgBr(B)+Br^*^
S. Hayashi; T. M. Mayer; R. B. Bernstein
Chemical Physics Letters, 53, 3, 419-422, Feb. 1978, Peer-reviwed
Scientific journal, English

Elastic Scattering of Electrons by Molecules at Intermediate Energies. II. Application to Hydrogen Molecule
S. Hayashi; K. Kuchitsu
Journal of Physical Society of Japan, 42, 4, 1319-1326, Apr. 1977, Peer-reviwed
Scientific journal, English

A Quasi-adiabatic Polarization Potential for Elastic Electron-Atom Scattering. I. General Theory
S. Hayashi; K. Kuchitsu
Journal of Physical Society of Japan, 42, 2, 621-627, Feb. 1977, Peer-reviwed
Scientific journal, English

A Quasi-adiabatic Polarization Potential for Elastic Electron-Atom Scattering. II. Application to Hydrogen Atom
S. Hayashi; K. Kuchitsu
Journal of Physical Society of Japan, 42, 2, 628-632, Feb. 1977, Peer-reviwed
Scientific journal, English

A Quasi-adiabatic Polarization Potential for Elastic Electron-Atom Scattering. Helium and Other Atoms
S. hayashi; K. Kuchitsu
Chemical Physics Letters, 44, 1, 1-4, Nov. 1976, Peer-reviwed
Scientific journal, English

Elastic Scattering of Electrons by Molecules at Intermediate Energies. I. General Theory
S. Hayashi
Journal of Physical Society of Japan, 41, 5, 1724-1732, Nov. 1976, Peer-reviwed
Scientific journal, English

Elastic Scattering of Electrons by Molecules at Intermediate Energies. Calculation of Double Scattering Effects in N_2_ and P_4_
S. Hayashi; K. Kuchitsu
Chemical Physics Letters, 41, 3, 575-579, Aug. 1976, Peer-reviwed
Scientific journal, English

超音波・光触媒ハイブリッド系における環境ホルモン分解
畑中信一; 平木康広; 林 茂雄
May 2009, 超音波テクノ, 22, 3, 26-29, Japanese, Introduction other

水溶液中ナノカーボン材料の超音波合成
畑中信一; 白井洋至; 林 茂雄
Aug. 2007, 化学工業, 58, 8, 26-29, Japanese, Introduction other

有害物質分解における超音波利用
林 茂雄; 高上直美; 北島正樹; 畑中信一
Feb. 2005, 化学工業, 56, 2, 132-137, Japanese, Introduction other

高濃度アルカリ塩水溶液中におけるソノルミネッセンス気泡の挙動
林 茂雄; 野崎健司; 畑中信一
Feb. 2005, 超音波テクノ, 17, 2, 87-90, Japanese, Introduction other

ソノルミネッセンスとは何か
林 茂雄; 鎌倉友男
Feb. 1999, 超音波テクノ, 11, 2, 2-5, Japanese, Introduction other

単泡性ソノルミネッセンス実験の最先端．画像計測
林 茂雄
Feb. 1999, 超音波テクノ, 11, 2, 18-21, Japanese, Introduction other

データ・誤差解析の基礎
林 茂雄; 馬場 凉
Japanese, Joint translation, 東京化学同人, 2013

Electrochemistry for Engineers
Shigeo Hayashi
Japanese, Single work, コロナ出版, Jul. 2012

理工系のための表計算ソフト活用術
林 茂雄
Japanese, Editor, 東洋書店, May 2008

移動現象論入門 －熱・統計力学の基礎から学ぶ－
Shigeo Hayashi
Japanese, Editor, 東洋書店, Apr. 2007

化学計算のための数学入門
林 茂雄; 馬場 凉
Japanese, Joint translation, 東京化学同人, 2007

Concepts in Basic Bubble and Foam Engineering
Shigeo Hayashi
Japanese, Joint work, 第５章 第１節 ソノルミネッセンスとは何か？, テクノシステム, Mar. 2005

科学計測における誤差解析入門
林 茂雄; 馬場 凉
Japanese, Joint translation, 東京化学同人, 2000

超音波によるカーボン担持Pt触媒の調製：界面活性剤の分子量による影響
榊原志太郎; 中山健一; 畑中信一; 林茂雄; 岩澤康裕
Oral presentation, Japanese, 日本化学会,日本化学会第93回春季年会
Mar. 2013

超音波によるカーボン担持Pt触媒の調製：ナノ粒子の分散状態と触媒活性
中山健一; 榊原志太郎; 畑中信一; 林茂雄; 岩澤康裕
Oral presentation, Japanese, 日本化学会,日本化学会第93回春季年会
Mar. 2013

ソノケミストリー：超音波による極限的反応場
林 茂雄
Others, Japanese, 第40回Continuing Educationシリーズ講習会, （社）化学工学会関東支部
Nov. 2009

Na発光とC2発光のソノルミネッセンス温度の違い
畑中信一; 林 茂雄; 崔 博坤
Oral presentation, Japanese, 信学技報
Apr. 2009

超音波キャビテーション中における原子分子過程－ソノルミネッセンスとソノケミストリー－
林 茂雄
Invited oral presentation, Japanese, 第16回原子衝突セミナー, 原子衝突セミナーテキスト（原子衝突研究協会）
Mar. 2009

硫酸中Na原子発光の鮮明なソノルミネッセンス
畑中信一; 林 茂雄; 阿部将吾; 崔 博坤
Oral presentation, Japanese, 信学技報
Apr. 2008

水溶液中ナノ炭素材料の超音波合成：炭素源依存性
畑中信一; 白井洋至; 林 茂雄
Oral presentation, Japanese, 日本化学会第88春季年会講演予稿集Ⅰ,日本化学会第88春季年会
Mar. 2008

ビスフェノールＡの超音波光触媒分解における溶存ガス効果
上柳 亮; 畑中信一; 林 茂雄
Oral presentation, Japanese, 日本化学会第88春季年会講演予稿集Ⅰ,日本化学会第88春季年会
Mar. 2008

ビスフェノールＡの超音波分解における液温効果
畑中信一; ヘラル ウディン; 林 茂雄
Oral presentation, Japanese, 信学技報
Jan. 2008

Cavitation research in sonochemistry: an overview
S. Hayashi
Others, English, International Symposium on Sonochemistry and Sonoprocessing 2007
Dec. 2007

Sonochemical synthesis of carbon nanoparticles in water under acetylene
S.-I. Hatanaka; S. Hayashi
Others, English, International Symposium on Sonochemistry and Sonoprocessing 2007
Dec. 2007

Effects of aqueous temperature and OH radical scavenger on sonolysis of Bisphenol A
Md. Helal Uddin; S.-I. Hatanaka; S. Hayashi
Others, English, International Symposium on Sonochemistry and Sonoprocessing 2007
Dec. 2007

超音波・光触媒ハイブリッド系における環境ホルモン分解
畑中信一; 平木康広; 林 茂雄
Oral presentation, Japanese, 信学技報
Oct. 2007

水中超音波によるアセチレンガスの固体ナノカーボンへの転化
畑中信一; 林 茂雄
Oral presentation, Japanese, 日本化学会第87春季年会講演予稿集I,日本化学会第87春季年会
Mar. 2007

水溶液中ナノ炭素材料のソノケミカル合成に及ぼすベンゼン濃度効果
白井洋至; 畑中信一; 林 茂雄
Oral presentation, Japanese, 日本化学会第87春季年会講演予稿集Ｉ,日本化学会第87春季年会
Mar. 2007

超音波キャビテーションによるナノカーボンの水中合成
畑中信一; 白井洋至; 林 茂雄
Oral presentation, Japanese, 信学技報
Apr. 2006

硫酸中高輝度ソノルミネッセンスの周波数依存性
畑中信一; 林 茂雄
Oral presentation, Japanese, 信学技報
Apr. 2006

環境ホルモンの超音波分解：反応サイトと副生成物
北島正樹; 畑中信一; 林 茂雄
Oral presentation, Japanese, 日本化学会,春季年会
Mar. 2006

超音波化学による水溶液中ナノ炭素材料の合成
白井洋至; 畑中信一; 林 茂雄
Oral presentation, Japanese, 日本化学会,春季年会
Mar. 2006

光触媒と超音波の併用による環境ホルモンの分解
平木康広; 畑中信一; 林 茂雄
Oral presentation, 日本化学会,春季年会
Mar. 2006

水溶液中ナノカーボン材料の超音波合成
畑中信一; 白井洋至; 林 茂雄
Oral presentation, Japanese, 超音波エレクトロニクスの基礎と応用に関するシンポジウム,超音波エレクトロニクスの基礎と応用に関するシンポジウム
Nov. 2005

ソノルミネッセンス ―物理化学の視点から―
林 茂雄
Invited oral presentation, Japanese, 第14回ソノケミストリー研究会, ソノケミストリー研究会
Oct. 2005

環境ホルモン分解における光触媒と超音波の相乗効果
平木康広; 畑中信一; 林 茂雄
Oral presentation, Japanese, ソノケミストリー研究会,ソノケミストリー研究会
Oct. 2005

ビスフェノールAの酸素下における超音波分解メカニズム：Fenton反応との比較
北島正樹; 畑中信一; 林 茂雄
Oral presentation, Japanese, ソノケミストリー研究会,ソノケミストリー研究会
Oct. 2005

ベンゼン水溶液への超音波照射によるナノカーボンの合成
白井洋至; 畑中信一; 林 茂雄
Oral presentation, Japanese, ソノケミストリー研究会,ソノケミストリー研究会
Oct. 2005

単一キャビテーションの気泡ダイナミックスとOHラジカル量の関係
畑中信一; 林 茂雄
Oral presentation, Japanese, 信学技報
May 2005

超音波キャビテーションによる環境ホルモンの分解
北島正樹; 畑中信一; 林 茂雄
Oral presentation, Japanese, 信学技報
May 2005

超音波実験における光散乱微粒子計測をめぐって
林 茂雄
Oral presentation, Japanese, 信学技報
May 2004

高濃度水溶液中でのムーヴィング・シングルバブルソノルミネッセンス
野崎健司; 畑中信一; 林 茂雄
Oral presentation, Japanese, 信学技報
May 2004

Single-bubble sonoluminescence phenomena from glycerol drops injected into water
Shigeo Hayashi
Invited oral presentation, English, 18th International Congress on Acoustics, Kyoto, Japan, International conference
Apr. 2004

ソノルミネッセンスに及ぼすアルコールの効果
相原 健次郎; 畑中 真一; 林 茂雄
Oral presentation, Japanese, 信学技報
Jun. 2003

グリセリン滴による単泡性ソノルミネッセンス：ごみ粒子による不安定性
Naser Harba; 林 茂雄
Oral presentation, Japanese, 超音波エレクトロニクスの基礎と応用に関するシンポジウム講演予稿集
Nov. 2002

グリセリン滴からの単泡性ソノルミネッセンス：カオス的ダイナミックス
Naser Harba; 林 茂雄
Oral presentation, Japanese, 音波の物性と化学討論会講演論文集
Nov. 2002

Single-bubble sonoluminescence in inhomogeneous medium
Naser Harba; Shigeo Hayashi
Oral presentation, English, Forum Acusticum Sevilla
Sep. 2002

Effects of glycerol on single-bubble sonoluminescence in water
Naser Harba; Shigeo Hayashi
Oral presentation, English, 信学技報
Jun. 2002

粘性媒質中の単泡性ソノルミネッセンスに対するごみ粒子 の効果
Naser Harba; 林 茂雄
Oral presentation, Japanese, 応用物理学会予稿集1
Mar. 2002

シングルバブルからのルミノール音響化学発光
畑中信一; 三留秀人; 安井久一; 小塚晃透; 林茂雄
Oral presentation, Japanese, 第22回超音波エレクトロニクスの基礎と応用に関するシンポジウム講演予稿集
Nov. 2001

ルミノール溶液中シングルバブルソノルミネッセンスのpH依存性
畑中信一; 三留秀人; 安井久一; 小塚晃透; 林茂雄
Oral presentation, Japanese, 第10回ソノケミストリー討論会講演論文集
Nov. 2001

ピレン酪酸によるシングルバブルソノホトルミネッセンス
根崎 誠; 畑中 信一; 林 茂雄
Oral presentation, Japanese, 第10回ソノケミストリー討論会講演論文集
Nov. 2001

液体中の溶存ガスまたは固体粒子の分離に及ぼす音響キャビテーションの効果
畑中信一; 林茂雄; 小塚晃透; 三留秀人
Oral presentation, Japanese, 平成13年度日本鉄鋼協会秋季講演大会高温プロセス部会シンポジウム講演予稿集
Sep. 2001

キャビテーション作用を利用するための音場設計
畑中信一; 林茂雄; 三留秀人
Oral presentation, Japanese, 平成13年度日本鉄鋼協会秋季講演大会高温プロセス部会シンポジウム講演予稿集
Sep. 2001

単泡性ソノルミネッセンス気泡の発光相と化学相：制御と観察
林 茂雄; 鎌倉友男; 宮嵜 武; 安井久一
Others, Japanese, 平成10年から平成12年度科学研究費補助金［基盤研究（B）（2）］研究成果報告書
Mar. 2001

シングルバブル･ソノルミネッセンスの計測. 3：光散乱法の工夫
内山俊介; Naser Harba; 林 茂雄
Oral presentation, Japanese, 信学技報,超音波研究会
Feb. 2001

Electrolysis-assisted single-bubble sonoluminescence
Shigeru Hayashi; S. Hayashi
Oral presentation, English, 8-th International Workshop on Modern Acoustics NDT
Oct. 2000

Electrolysis-assisted single-bubble sonoluminescence
Shigeru Hayashi; S. Hayashi
Invited oral presentation, English, 8-th International Workshop on Modern Acoustics NDT, International conference
Oct. 2000

ソノルミネッセンス：技術から科学へ
林 茂雄
Invited oral presentation, Japanese, 超音波応用懇談会
Oct. 2000

電気分解で生成した種気泡に由来する単泡性音響発光
林 茂雄; 林 繁
Oral presentation, Japanese, 日本音響学会講演論文集
Mar. 2000

単泡生ソノルミネッセンス気泡の観測と解析
林 茂雄
Oral presentation, Japanese, 応用物理学会予稿集１
Mar. 2000

単泡生ソノルミネッセンス気泡の観察：マイクロリアクターの可能性
林 茂雄
Oral presentation, Japanese, ソノケミストリー研究会講演論文集
Nov. 1999

ソノルミネッセンスとは何か
林 茂雄
Oral presentation, Japanese, 電気関係学会関西支部連合大会シンポジウム，講演論文集
Nov. 1999

SBSL気泡のダイナミックスについての実験的検討
林 茂雄; 加藤雄一郎; 鎌倉友男; 田中健之; 小林 寛
Oral presentation, Japanese, 日本音響学会講演論文集Ⅱ
Mar. 1999

SBSL気泡のダイナミックスについての実験的検討
林 茂雄; 加藤雄一郎; 鎌倉友男; 田中健之; 小林 寛
Invited oral presentation, Japanese, 日本音響学会講演論文集Ⅱ
Mar. 1999

シングルバブル音響ルミネッセンス
林 茂雄
Invited oral presentation, Japanese, 「音と光の工学的接点」シンポジウム，応用物理学会予稿集０
Sep. 1998

シングルバブル音響ルミネッセンス発生条件の検討
加藤雄一郎; 田中健之; 林 茂雄; 小林 寛
Oral presentation, Japanese, 応用物理学会予稿集Ｉ
Sep. 1998

Barrier Crossing Processes in an Arbitrary Potential
A. N. Drozdov; 林 茂雄
Oral presentation, English, 日本物理学会講演概要Ⅲ
Sep. 1998

日本物理学会

日本化学会

The American Physical Society

The American Chemical Society

応用物理学会

The Acoustical Society of Japan

Japan Society of Sonochemistry