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Simulation of Gamma-Ray and Neutron Spectrometers for Microsatellite Missions

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Journal of Geoscience and Environment Protection 2018年第8期6卷 105-132页

作者： Masayuki Naito nobuyuki hasebe Junya Ishii José A.Matias-Lopes Valery V.Dmitrenko Christian Wohler Kyeong Ja Kim School of Advanced Science and Engineering Waseda UniversityTokyoJapan Research Institute for Science and Engineering Waseda UniversityTokyoJapan Department of Physics University of CoimbraCoimbraPortugal National Research Nuclear University MEPhI MoscowRussia Image Analysis Group Dortmund University of TechnologyDortmundGermany Korea Institute of Gescience and Mineral Resources DaejeonSouth Korea

Microsatellites have recently opened windows of frequent and low cost missions for planetary exploration. The performance of gamma-ray and neutron spectrometers on future microsatellite missions is simulated to assess the possibility of observation of hydrogen and major elements, given their concentration on the observation target. The measured elemental abundance will provide important geological constraints, and some of them may serve as space resources. Four different types of target bodies with various hydrogen concentrations in the range of 0 - 20,000 ppm are assumed as target compositions;Earth’s core, C-type, S-type and Martian meteorites. Gamma-ray and neutron emission rates show unique footprints that are related to the different elemental compositions. The starting point is the solid angle subtended between observation target and spectrometers that allow estimating the gamma-ray and neutron count rates emitted by the celestial bodies. In this work, three types of gamma-ray detectors;high-purity germanium (HPGe), CeBr3 and LaBr3(Ce), a neutron spectrometer combining a lithium glass scintillator with a boron loaded plastic scintillator and a dual mode spectrometer Cs2LiYCl6(Ce) (CLYC) are simulated, focusing on their observation backgrounds as a model case for microsatellite based measurements. The background count level of both gamma-ray (except for the LaBr3 detector) and neutron count rates was negligible under these particular conditions. The gamma-ray detectors were compared by the figure of merit, which was determined by their efficiency and energy resolution. It was found that each detector has unique advantages. The HPGe detector has the highest figure of merit due to its excellent energy resolution, whereas the CLYC detector is low in weight and power consumption due to its dual sensitivity to gamma-ray and neutron. The CeBr3 detector is an intermediate choice. The neutron count rates are calculated separately in three energy ranges, i.e. , thermal

关键词： Gamma-Ray Spectrometer Neutron Spectrometer Microsatellite.High Purity Germanium CeBr3 LaBr3(Ce) CLYC

Tyrosinase-modified carbon felt-based flow-biosensors:The role of ultra-sonication in shortening the enzyme immobilization time and improving the sensitivity for p-chlorophenol

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Journal of Environmental Sciences 2011年第6期23卷 1038-1043页

作者： Yasushi hasebe Department of Material Science and Engineering Graduate School of EngineeringSaitama Institute of Technology1690 FusaijiFukayaSaitama 369-0293Japan Department of Life Science and Green Chemistry Saitama Institute of Technology1690 FusaijiFukayaSaitama 369-0293Japan

Tyrosinase（TYR） was covalently immobilized onto amino-functionalized carbon felt surface via glutaraldehyde-coupling under ultrasonic treatment for 10 *** resulting TYR-immobilized carbon felt was used as a working electrode unit of bioelectrocatalytic flow-through detector for TYR substrates（catechol,p-chlorophenol（p-CP）,p-cresol,phenol etc.）.Cathodic peak currents based on the electroreduction of enzymatically produced o-quinones were detected at-50 mV ***/*** with previous work in which TYR was immobilized onto amino-functionalized carbon felt for 16 hr without the ultrasonic treatment,we succeeded in（1） shortening the enzyme immobilization time from 16 hr to 10 min,（2） enhancing the sensitivity of p-CP,and（3） improving the operational stability of *** ultrasonic treatment during the TYR immobilization step would lead to certain changes in the structure of the immobilized TYR and the morphology of the immobilized TYR-layer on the carbon felt surface.

关键词： enzyme immobilization under ultrasonic treatment flow-biosensor carbon felt tyrosinase phenolic compounds

Sensitive voltammetric and amperometric responses of respiratory toxins at hemin-adsorbed carbon-felt

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Journal of Environmental Sciences 2013年第6期25卷 1055-1062页

作者： Yasushi hasebe Yue Wang Department of Life Science and Green Chemistry Faculty of EngineeringSaitama Institute of Technology School of Chemical Engineering University of Science and Technology Liaoning

A hemin [iron-Fe（III） protoporphyrin IX chloride] was adsorbed onto a carbon-felt （CF）, which is a microelectrode ensemble of micro carbon fiber （ca. 7 ~tm diameter）. The resulting hemin-adsorbed-CF （hemin-CF） showed a well-defined redox wave based on the hemin- Fe（III）/Fe（II） redox process with the formal potential of -0.225 V vs. Ag/AgC1 in deoxygenated phosphate]citrate buffer solution （0.1 mol/L, pH 5.0）. The apparent heterogenous electron transfer rate constant was estimated to be 8.6 sec-1. In air-saturated electrolyte solution, the hemin-CF exhibited an excellent electrocatalytic activity for the reduction of dioxygen （O2）. This activity was reversibly inhibited by respiratory toxins such as cyanide and azide, which bind sixth coordination position of iron active center of hemin. The electrocatalytic Oz reduction current at the hemin-CF was modulated by the toxins in a concentration-depending manner. Based on the relationship between the %inhibition and the toxin concentration, apparent inhibition constants of cyanide and azide were evaluated to be 4.52 and 1.98 Ixmol/L, respectively. When the hemin-CF was used as a working electrode unit of the CF-based electrochemical flow-through detector with air-saturated carrier, the injection of the azide induced peak-shape current responses, which allowed rapid and continuous flow-amperometric determination of azide with high sensitivity.

关键词： respiratory toxin hemin carbon-felt cyanide azide voltammetry amperometry

Electropolymerized poly(Toluidine Blue)-modified carbon felt for highly sensitive amperometric determination of NADH in flow injection analysis

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Journal of Environmental Sciences 2011年第6期23卷 1050-1056页

作者： Yasushi hasebe Yue Wang Kazuya Fukuoka Department of Life Science and Green Chemistry Saitama Institute of Technology 1690 Fusaiji Fukaya Saitama 369-0293 Japan Department of Materials Science and Engineering Graduate School of Engineering Saitama Institute of Technlogy 1690 Fusaiji Fukaya Saitama 369-0293 Japan School of Chemical Engineering University of Sciences and Technology Anshan 114044 China

Poly（pheniothiazine） films were prepared on a porous carbon felt（CF） electrode surface by an electrooxidative polymerization of three phenothiazine derivatives（i.e.,Tthionine（TN）,Toluidine Blue（TB） and Methylene Blue（MB）） from 0.1 mol/L phosphate buffer solution（pH 7.0）.Among the three phenothiazies,the poly（TB） film-modified CF exhibited an excellent electrocatalytic activity for the oxidation of nicotinamide adenine dinucleotide reduced form（NADH） at ＋0.2 V ***/*** poly（TB） film-modified CF was successfully used as working electrode unit of highly sensitive amperometric flow-through detector for *** peak currents（peak heights） were almost unchanged,irrespective of a carrier flow rate ranging from 2.0 to 4.1 mL/min,resulting in the measurement of NADH（ca.30 samples/hr） at 4.1 mL/*** peak current responses of NADH showed linear relationship over the concentration range from 1 to 30 μmol/L（sensitivity：0.318 μA/（μmol/L）;correlation coefficient：0.997）.The lower detection limit was found to be 0.3 μmol/L（S/N = 3）.

关键词： poly(phenothiazine) Toluidine Blue electropolymerization carbon felt NADH flow injection analysis

CONSTRUCTION OF QUANTUM FIELD THEORY OF DISLOCATIONS BASED ON THE NON-RIEMANNIANPLASTICITY

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Acta Metallurgica Sinica(English Letters) 1998年第6期11卷 405-411页

作者： T.hasebe Y.Imaida Doshisha Univ Kyoto Japan

A new microscopic approach was proposed, which bridges the order gap between the dislocation theory and the crystalline plasticity based on the quantum field theory of dislocations. The Ginzburg-Landau equation was derived rigorously from the quantized Hamiltonian for a crystal body containing a large number of dislocations, which gives the reaction-diffusion (RD) type differential equations. The RD equation describes periodic patterning shown in PSBs, etc.. relationship between the proposed theory and the concepts appeared in the non-Riemannian plasticity was extensively discussed by introducing the gauge field of dislocations. (Edited author abstract) 15 Refs.

关键词： crystalline plasticity field theory Non-Riemannian plasticity,dislocation theory gauge field

How do Plants Organize Microtubules Without a Centrosome?

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Journal of Integrative Plant Biology 2007年第8期49卷 1154-1163页

作者： TakashiMurata TakakoTanahashi Tomoaki Nishiyama Kazuo Yamaguchi Mitsuyasu hasebe National Institute for Basic Biology Okazaki 444-8585Japan Department of Basic BiologyThe Graduate University for Advanced StudiesOkazaki 444-8585Japan Advanced Science Research Center Kanazawa UniversityTakaramachi 13-1Kanazawa 920-0934Japan ERATOJapan Science and Technology AgencyTakaramachi 13-1Kanazawa 920-0934Japan Advanced Science Research Center Kanazawa UniversityTakaramachi 13-1Kanazawa 920-0934Japan Graduate School of Natural Science and TechnologyKanazawa UniversityKanazawa 920-1192Japan National Institute for Basic Biology Okazaki 444-8585Japan Department of Basic BiologyThe Graduate University for Advanced StudiesOkazaki 444-8585Japan ERATOJapan Science and Technology AgencyOkazaki 444-8585Japan

A microtubule nucleates from a γ-tubuUn complex, which consists of γ-tubulin, proteins from the SPC971SPC98 family, and the WD40 motif protein GCP-WD. We analyzed the phylogenetic relationships of the genes encoding these proteins and found that the components of this complex are widely conserved among land plants and other eukaryotes. By contrast, the interphase and mitotic arrays of microtubules in land plants differ from those in other eukaryotes. In the interphase cortical array, the majority of microtubules nucleate on existing microtubules in the absence of conspicuous microtubule organizing centers （MTOCs）, such as a centrosome. During mitosis, the spindle also forms in the absence of conspicuous MTOCs. Both poles of the spindle are broad, and branched structures of microtubules called microtubule converging centers form at the poles. In this review, we hypothesize that the microtubule converging centers form via microtubule-dependent microtubule nucleation, as in the case of the interphase arrays. The evolutionary insights arising from the molecular basis of the diversity in microtubule organization are discussed.

关键词： cortical microtubules evolution γ-tubulin microtubule nucleation mitotic spindle.

AN EDGE CRACK PROBLEM IN A SEMI-INFINITE PLANE SUBJECTED TO CONCENTRATED FORCES

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Applied Mathematics and Mechanics(English Edition) 2001年第11期22卷 1279-1290页

作者： CHEN Yi-zhou(陈宜周) Norio hasebe(长谷部宣男) Division of Engineering Mechanics Jiangsu University of Science and Technology Zhenjiang 212013 P R China Department of Civil Engineering Nagoya Institute of Technology Gokiso-cho Showa-ku Nagoya 466 Japan

An oblique edge crack problem in a semi-infinite plane is discussed. Re concentrated forces are applied on the edge crack face, or on the line boundary of the cracked semi-infinite plane. The rational mapping function approach is suggested to solve the boundary value problem and a solution in a closed form is obtained. Finally, several numerical examples with the calculated results are given.

关键词： rational mapping function approach edge crack problem stress intensity factor

Stochastic model predictive braking control for heavy-duty commercial vehicles during uncertain brake pressure and road profile conditions

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Control Theory and Technology 2022年第2期20卷 248-262页

作者： Ryota Nakahara Kazuma Sekiguchi Kenichiro Nonaka Masahiro Takasugi Hiroki hasebe Kenichi Matsubara Graduate School of Integrative Science and Engineering Tokyo City UniversityTamazutsumiSetagaya-kuTokyo 1588557Japan Nabtesco Automotive Co. Ltd.HirakawachoChiyoda-kuTokyo 1020093Japan

When heavy-duty commercial vehicles(HDCVs)must engage in emergency braking,uncertain conditions such as the brake pressure and road profile variations will inevitably affect braking *** minimize these uncertainties,we propose a combined longitudinal and lateral controller method based on stochastic model predictive control(SMPC)that is achieved via Chebyshev–Cantelli *** our method,SMPC calculates braking control inputs based on a finite time prediction that is achieved by solving stochastic programming elements,including chance *** accomplish this,SMPC explicitly describes the probabilistic uncertainties to be used when designing a robust control *** main contribution of this paper is the proposal of a braking control formulation that is robust against probabilistic friction circle uncertainty *** specifically,the use of Chebyshev–Cantelli inequality suppresses road profile influences,which have characteristics that are different from the Gaussian distribution,thereby improving both braking robustness and control performance against statistical ***,since the Kalman filtering(KF)algorithm is used to obtain the expectation and covariance used for calculating deterministic transformed chance constraints,the SMPC is reformulated as a KF embedded deterministic ***,the effectiveness of our proposed method is verified via a MATLAB/Simulink and TruckSim co-simulation.

关键词： Heavy-duty commercial vehicle Brake system Stochastic model predictive control Road profile

Effect of Thermal Drilling Condition on Burring in Ultrahigh Strengh TRIP Sheet Steels

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Journal of Iron and Steel Research International 2011年第S1期18卷 442-446页

作者： Akihiko Nagasaka Takuya Matsushima Shun hasebe Koh-ichi Sugimoto Toshio Murakami Nagano National College of Technology 716 TokumaNaganoNagano 381-8550Japan Shinshu University 4-17-1 WakasatoNaganoNagano 380-8553Japan Material Design Research Section Material Research LaboratoryKobe SteelLtd.1-5-5 TakatsukadaiNishi-kuKobeHyogo 651-2271Japan

Effect of thermal drilling condition on burring of 0.2C-(1.0-2.5)Si-(1.0-2.0)Mn (mass%) ultrahigh strength TRIP-aided sheet steels with polygonal ferrite matrix (TDP steels) was investigated for automotive *** combined rotational and downward force of the thermal drilling tool bit created friction *** height of the bushing was roughly 3 to 4 times the initial sheet *** bushings are ideal for thread applications,as the strength of threads was significantly *** found that the burring and tapping contributed to the improvement of the tensile strength of 980 MPa class TRIP steel.

关键词： TRIP sheet steel burring tapping thermal drilling