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Underground Space 2016年第2期1卷 114-123页

作者： Jinchun Chai Takehito Negami Kosuke Aiga takenori hino Graduate School of Science and Engineering Saga University1 HonjyoSaga 840-8502Japan Institute of Lowland and Marine Research Saga University1 HonjyoSaga 840-8502Japan

The effect of pore water chemistry on anisotropic behavior of consolidation and shear strength of reconstituted Ariake clay has been investigated *** types of chemicals added into the pore water of the soil for enhancing flocculation microstructure of soil particles are sodium chloride(salt)(NaCl),and calcium chloride(CaCl_(2));and two dispersants added are sodium triphosphate(Na_(5)-P_(3)O_(10))and sodium hexametaphosphate(Na_(6)P_(6)O_(18)),*** concentrations of these chemicals in pore water were 2-3%.Degrees of anisotropy of the coefficient of consolidation and undrained shear strength decreased with adding NaCl and CaCl_(2),but increased with adding the *** of anisotropy also increased with one-dimensional(1D)deformation and the samples with dispersive additives had higher increase *** has been confirmed qualitatively by scanning electron microscopy(SEM)images that adding dispersive chemicals promoted the formation of dispersive microstructure and increased the degree of anisotropy,and the chemicals enhancing flocculent microstructure had an inverse *** possible application of the findings to underground construction has been discussed also.

关键词： Anisotropy Pore water chemistry Clay Consolidation Shear strength SEM image Underground construction

Methods for evaluating overconsolidation ratio from piezocone sounding results

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Underground Space 2017年第3期2卷 182-194页

作者： Nachanok Chanmee Jinchun Chai takenori hino Jun Wang Department of Civil Engineering and Architecture Saga UniversitySaga 840-8502Japan Institute of Lowland and Marine Research(ILMR) Saga UniversitySaga 840-8502Japan College of Civil Engineering and Architecture Wenzhou UniversityWenzhou University TownZhejiangChina

Methods for estimating the overconsolidation ratio(OCR)of soil deposits from piezocone sounding results have been *** existing methods have been briefly reviewed and a new method has been *** proposed method can be applied to both normally consolidated/overconsolidated and underconsolidated ***,existing methods have been modified so that they can be applied to underconsolidated ***,all the methods have been applied to 12 case histories collected from 6 different *** estimated values of OCR have been compared with the measured *** has been shown that if the parameters(soil properties and empirical parameters)can be determined appropriately,then all the methods can achieve a reasonable *** has also been shown that the proposed method exhibits a relatively better performance and results in less scattered data than the other methods.

关键词： Piezocone sounding Overconsolidation ratio Undrained shear strength Prediction Site investigation

Effect of environment change on the strength of cement/lime treated clays

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Frontiers of Structural and Civil Engineering 2012年第2期6卷 153-165页

作者： takenori hino Rui JIA Seiji SUEYOSHI Tri HARIANTO Institute of Lowland and Marine Research Saga UniversitySaga 840-8502Japan Department of Civil Engineering and Architecture Graduate School of Science and EngineeringSaga UniversitySaga 840-8502Japan Hasanuddin University Makassar 90245Indonesia

The field strengths of cement/lime treated clays were investigated in the Ariake Sea costal *** deposition environment of the investigation location is reconstructed and compared to the present ground *** mechanism of the ground environment change and its effect on the strength of cement/lime treated soil are *** strength development of improved soil using cement and lime in different curing environments was investigated in the laboratory for studying the effect of environment change on the strength *** has been found that the strength deterioration of improved soil in deep mixing method is due to 1)the ground environment change due to the secondary oxidation which results in low pH value and high organic content,and 2)the formations of the porous structures result from the elution of the calcium ***,it has been found that the initial strength increase of the improved soil is related to the dissolved silica and that the dissolution of the silica in clay minerals needs long *** examining the longterm strength for preventing strength degradation,the effect of environmental change has to be *** importance of measuring pH and oxidation-reduction potential(ORP)of the ground for cement/lime solidification method is explained.

关键词： soil solidification ground environment strength deterioration pH oxidation-raduction potential(ORP) silica

Lithostab as Technique for Improving the Geotechnical Performance of a Lateritic Soil in Road Construction

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Journal of Civil Engineering and Architecture 2022年第9期16卷 425-430页

作者： Donzala D.Some Ohindemi G.Yameogo takenori hino Tri Harianto Burkina Faso’s Ministry in charge of Infrastructures 03 BP 7011 Building LamizanaOuagadougou 03Burkina Faso Faculty of Exact and Applied Sciences(UFR-SEA) University of OuagadougouJoseph Ki-Zerbo03 BP 7021 Ouagadougou 03Burkina Faso Department of Civil Engineering and Architecture Faculty of Science and EngineeringSaga UniversityHonjo 1Saga 840-8502Japan Civil Engineering Department Hasanuddin UniversityMakassarIndonesia Department of Civil Engineering and Architecture Graduate School of Science and EngineeringSaga UniversityHonjo 1Saga 840-8502Japan

This article focuses on a technique for shallow mechanical improvement of soil which deals with the utilization of crushed granite mixed in a certain percentage with lateritic soils during road construction in Burkina *** is the simplified name for litho-stabilization,a technique for improving laterite by adding crushed granite that increases the CBR(California bearing ratio)of that material for being used in road *** 0/25 of crushed granite added to a laterite in our case gives good performance in terms of ***,the CBR index which was initially 48 at 98%of the OMP(optimum modified Proctor)goes to *** from 84 at 98%of the OMP,it goes to 128 for 30%of class 0/25 of crushed granite *** means that class 0/25 of crushed granite provides better CBR index to that material when it is incorporated at 30%.So,lithostab is an easy to implement eco-friendly material for road construction because of the utilization of local ***,it contributes to the protection of the environment in the sense that its production does not require a lot of energy and does not release large quantities of carbon dioxide into the atmosphere.

关键词： Lithostab technique for improving geotechnical performance laterite roads.

Thermomechanical and Hydrous Effect of Heavy Fuel Oil in a Building Material Based on Silty Clayey Soil

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Journal of Civil Engineering and Architecture 2023年第5期17卷 215-224页

作者： Ohindemi G.Yameogo Donzala D.Some SiéKam Adamah Messan takenori hino DieudonnéJ.Bathiebo Laboratoire d’Energies Thermiques Renouvelables(L.E.T.RE) Unitéde Formation et de Recherche en Sciences Exactes et Appliquées(UFR-SEA)University Joseph Ki-Zerbo of Ouagadougou03 BP 7021 Ouagadougou 03Burkina Faso Ministry in Charge of Infrastructures 03 BP 7011 Building LamizanaOuagadougou 03Burkina Faso Laboratoire Eco-Matériaux et Habitats Durables(LEMHaD) Institut International d’Ingénierie de l’Eau et de L’Environnement(Institut 2iE)Rue de La Science01 BP 594 Ouagadougou 01Burkina Faso Department of Civil Engineering and Architectural Design Faculty of Science and EngineeringGraduate School of Science and EngineeringSaga UniversityHonjo 1Saga 840-8502Japan

This study focuses on the use of heavy fuel oil in construction in Burkina *** with silty and/or clay soil,it is used as a coating to reinforce the walls of raw soil constructions which are very sensitive to *** interest of this paper is to shed light on the thermomechanical and above all water effects of heavy fuel oil on a sample of silty clayey *** achieve this,we used heavy fuel oil added in different proportions to silty clayey soil,to make sample of bricks on which tests were carried *** the end of the experimental tests carried out on materials made(bricks)with our soil sample,it appears that heavy fuel oil moderately reduces the mechanical resistance of bricks and slightly increases thermal diffusion through *** the contrary,we note a very good water resistance of the bricks thanks to the heavy fuel oil,in particular their water absorption by *** confirms that the mixture of heavy fuel oil and a silty-clayey soil used as a coating makes it possible to prevent the infiltration of water into the walls of raw soil ***,its use as a construction material does not guarantee very good mechanical resistance,and slightly increases thermal diffusion.

关键词： Thermomechanical and hydrous effect heavy fuel oil building material silty clayey soil

Comparative study of MPS method and level-set method for sloshing flows

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Journal of Hydrodynamics 2014年第4期26卷 577-585页

作者：张雨新万德成 hino Takanori State Key laboratory of Ocean Engineering School of Naval Architecture Ocean and Civil Engineering Shanghai Jiao Tong University Graduate school of Engineering Yokohama National University

This paper presents a comparative study of a meshless level-set method in the simulation of sloshing flows. The numerical moving particle semi-implicit （MPS） method and a grid based schemes of the MPS and level-set methods are outlined and two violent sloshing cases are considered. The computed results are compared with the corresponding experimental data for validation. The impact pressure and the deformations of free surface induced by sloshing are comparatively analyzed, and are in good agreement with experimental ones. Results show that both the MPS and level-set methods are good tools for simulation of violent sloshing flows. However, the second pressure peaks as well as breaking and splashing of free surface by the MPS method are captured better than by the level-set method.

关键词： moving particle semi-implicit (MPS) method level-set method liquid sloshing impact pressure free surface

Automated stopping criterion for spectral measurements with active learning

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npj Computational Materials 2021年第1期7卷 1252-1260页

作者： Tetsuro Ueno Hideaki Ishibashi Hideitsu hino Kanta Ono Synchrotron Radiation Research Center Kansai Photon Science InstituteQuantum Beam Science Research DirectorateNational Institutes for Quantum and Radiological Science and TechnologySayoHyogoJapan Department of Human Intelligence Systems Graduate School of Life Science and Systems EngineeringKyushu Institute of TechnologyKitakyushuFukuokaJapan The Institute of Statistical Mathematics Research Organization of Information and SystemsTachikawaTokyoJapan Department of Applied Physics Graduate School of EngineeringOsaka UniversitySuitaOsakaJapan Center for Integrative Quantum Beam Science Institute of Materials Structure ScienceHigh Energy Accelerator Research OrganizationTsukubaIbarakiJapan

The automated stopping of a spectral measurement with active learning is *** optimal stopping of the measurement is realised with a stopping criterion based on the upper bound of the posterior average of the generalisation error of the Gaussian process *** is revealed that the automated stopping criterion of the spectral measurement gives an approximated X-ray absorption spectrum with sufficient accuracy and reduced data *** proposed method is not only a proof-of-concept of the optimal stopping problem in active learning but also the key to enhancing the efficiency of spectral measurements for highthroughput experiments in the era of materials informatics.

关键词： criterion spectral optimal

Autothermal reforming of biogas over a monolithic catalyst

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Journal of Natural Gas Chemistry 2010年第5期19卷 477-481页

作者： Sadao Araki Naoe hino Takuma Mori Susumu Hikazudani Hitachi Zosen Corporation Business & Product Development HeadquartersTechnical Research Institute

This study focused on measurement of the autothermal reforming of biogas over a Ni based monolithic catalyst. The effects of the steam/CH4 （S/C） ratio, O2/CH4 （O2/C） ratio and temperature were investigated. The CH4 conversions were higher under all examined temperatures than the equilibrium conversion calculated using the blank outlet temperature, because the catalyst layer was heated by the exothermic catalytic partial oxidation reaction. The CH 4conversion increased with increasing O2/C ratio. Moreover, the CH4 conversion was higher than the equilibrium conversion calculated using the blank outlet temperature for O2/C〉0.42 and reached about 100% at O2/C=0.55. However, the hydrogen concentration decreased for O2/C〉0.45 because hydrogen was combusted to steam in the presence of excess oxygen. On the other hand, the hydrogen and CO2 concentrations increased and the CO concentration decreased with increasing SIC ratio. As a result, it was found that the highest hydrogen concentrations and CH4 conversions were attained at the O2/C ratios of 0.45-0.55 and the SIC ratios of 1.5-2.5. Moreover, the H2/CO ratio could also be controlled in the range from about 2 to 3.5 to give at least 90% CH4 conversion, by regulating the O2/C or S/C ratios.

关键词： autothermal reforming biogas hydrogen production monolithic catalyst Ni based catalyst

Chemical Composition Control of Non-Metallic Inclusions in High Alloy Steel Production Process

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Journal of Iron and Steel Research International 2011年第S2期18卷 275-282页

作者： Naoya SATOH Takahiro MIKI Mitsutaka hino Department of Metallurgy Graduate School of Engineering Tohoku University now Yasuki Works Hitachi Metal Corporation Department of Metallurgy Graduate School of Engineering Tohoku University Professor Emeritus Tohoku University now Hokkaido Polytechnic College 3-130 Zenibako Otaru Hokkaido 047-0292 Japan

There is a close relation between the characteristics of products and the chemical composition control of inclusions in steelmaking process. Therefore, it is very important for a warranty of product’s characteristics to improve inclusion quality resulting in defective products. In the present work, the control technique of inclusions’ chemical composition is discussed thermodynamically based on the Redlich-Kister type polynomial to metallic solution and regular solution model to molten oxide solution. It is very effective for the precise chemical composition control of oxides to determine the concentration of deoxidizers based on the thermodynamic relation among dissolved deoxidizers and oxygen, because it is known that oxide inclusions are equilibrated with them in molten steel in the steel making process. High alloy steel production process was focused in the present work.

关键词： high alloy steel non-metallic inclusion deoxidation equilibrium redlich-Kister type polynomial regular solution model

Automated estimation of materials parameter from X-ray absorption and electron energy-loss spectra with similarity measures

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npj Computational Materials 2019年第1期5卷 815-821页

作者： Yuta Suzuki Hideitsu hino Masato Kotsugi Kanta Ono Department of Materials Science and Technology Tokyo University of ScienceTokyoJapan High Energy Accelerator Research Organization Institute of Materials Structure ScienceTsukubaJapan The Institute of Statistical Mathematics TokyoJapan Center for Materials Research by Information Integration(CMI2) Research and Services Division of Materials Data and Integrated System(MaDIS)National Institute for Materials Science(NIMS)Tsukuba 305-0047Japan

Materials informatics has significantly accelerated the discovery and analysis of materials in the past *** of the key contributors to accelerated materials discovery is the use of on-the-fly data analysis with high-throughput experiments,which has given rise to the need for accelerated and accurate automated estimation of the properties of *** this regard,spectroscopic data are widely used for materials discovery because these data include essential information about *** important requirement for the realisation of the automated estimation of materials parameters is the selection of a similarity measure,or kernel *** required measure should be robust in terms of peak shifting,peak broadening,and ***,the determination of appropriate similarity measures for spectra and the automated estimation of materials parameters from these spectra currently remain *** examined major similarity measures to evaluate the similarity of both X-ray absorption and electron energy-loss *** similarity measures show good correspondence with the materials parameter,that is,the crystal-field parameter,in all *** Pearson's correlation coefficient was the highest for the robustness against noise and peak *** obtained the regression model for the crystal-field parameter 10 Dq from the similarity of the *** regression model enabled the materials parameter,that is,10 Dq,to be automatically estimated from the *** regard to research progress in similarity measures,this methodology would make it possible to extract the materials parameter from a large-scale dataset of experimental data.

关键词： materials similarity parameter