Sugiyama-Badr Laboratory

Process systems engineering (PSE)

Life cycle engineering (LCE)

Life cycle assessment (LCA)

Recycle engineering

Sustainable consumption and production

Society of Chemical Engineering of Japan

The Institute of Life Cycle Assessment, Japan

Society of Environmental Science, Japan

Japan Society of Material Cycles and Waste Management

AIChE (American Institute for Chemical Engineers)

ISIE (International Society for Industrial Ecology)

Process systems engineering II

Chemical engineering practice II

Computer chemistry practice

Process systems development

Environmental system engineering

Society of Environmental Toxicology and Chemistry Award, 2002

Process Safety and Environmental Protection Most Cited Author Award, 2006

Outstanding Paper Award, Society of Chemical Engineering of Japan, 2008

Best Teaching Award 2014 of the Faculty of Engineering, 2014

The SCEJ Award for Outstanding Research Achievement, 2016

Naoki Yokokawa, Eri Amasawa, Masahiko Hirao
"Design assessment framework for food packaging integrating consumer preferences and environmental impact"
Sustainable Production and Consumption, accepted

Hirokazu Sugiyama, Norikazu Harada, Eri Amasawa, Masahiko Hirao, Naohisa Yahagi
"A prototype method for selecting interventions for enhancing medication adherence in medicine taking processes"
Journal of Chemical Engineering of Japan, accepted

Eri Amasawa, Tomoki Yamanishi, Jun Nakatani, Masahiko Hirao, Shunsuke Sato
"Climate Change Implications of Bio-Based and Marine-Biodegradable Plastic: Evidence from Poly(3-hydroxybutyrate-co-3-hydroxyhexanoate)"
Environmental Science & Technology, 55, 3380–3388 (2021)

Makiko Kohno, Masahiko Hirao
"Information Flow System for Chemicals in Products (CiP) with Adequate Attention to the Social Dimension: The Japanese Challenge and the Way Forward"
EcoDesign and Sustainability II. Sustainable Production, Life Cycle Engineering and Management., PP.191-204 (2021)

Dami Moon, Eri Amasawa, Masahiko Hirao
"Consumer Motivation and Environmental Impact of Laundry Machine-Sharing: Analysis of Surveys in Tokyo and Bangkok"
Sustainability, 112, 9756 (2020) [open access]

Naoki Yokokawa, Yutaro Masuda, Eri Amasawa, Hirokazu Sugiyama, Masahiko Hirao
"Systematic packaging design tools integrating functional and environmental consequences on product life cycle: Case studies on laundry detergent and milk"
Packaging Technology and Science, 33, 445–459 (2020)

Eri Amasawa, Mikiaki Hasegawa, Naoki Yokokawa, Hirokazu Sugiyama, Masahiko Hirao
"Environmental performance of an electric vehicle composed of 47% polymers and polymer composites"
Sustainable Materials and Technologies, 25, e00189 (2020)

Eri Amasawa, Tsubasa Shibata, Hirokazu Sugiyama, Masahiko Hirao
"Environmental potential of reusing, renting, and sharing consumer products: systematic analysis approach"
Journal of Cleaner Production, 242, 118487 (2020)

Dami Moon, Eri Amasawa, Masahiko Hirao
"Laundry habits in Bangkok: Use patterns of products and services"
Sustainability, 11(16), 4486 (2019)

Naoki Yokokawa, Emi Kikuchi-Uehara, Eri Amasawa, Hirokazu Sugiyama, Masahiko Hirao
"Environmental analysis of packaging-derived changes in food production and consumer behavior"
Journal of Industrial Ecology, 23(5), 1253–1263 (2019)

Makiko Kohno, Masahiko Hirao
"Towards a Holistic Legal Framework for Chemical Management Based on Life-cycle Thinking - Picking Best Practices to Provide Guidance for the Asian Countries -"
Japanese Journal of Risk Analysis, 28(2), 107–122 (2018)

Haruku Shirahata, Masahiko Hirao, Hirokazu Sugiyama
"Multiobjective decision-support tools for the choice between single-use and multi-use technologies in sterile filling of biopharmaceuticals"
Computers & Chemical Engineering, 122, 114–128 (2019)

Dami Moon, Nana Ishikawa, Jun Nakatani, Masahiko Hirao
"Proposal on the provision of environmental information focusing on the flow of information collection and the buying decision process —Targeting home appliances consumers—"
Environmental Science, 31(5), 217–226 (2018)

Kensaku Matsunami, Takuya Miyano, Hiroaki Arai, Hiroshi Nakagawa, Masahiko Hirao, Hirokazu Sugiyama
"Decision support method for the choice between batch and continuous technologies in solid drug product manufacturing"
Industrial & Engineering Chemistry Research, 57(30), 9798–9809 (2018)

Eri Amasawa, Yurie Suzuki, Dami Moon, Jun Nakatani, Hirokazu Sugiyama, Masahiko Hirao
"Designing Interventions for Behavioral Shifts toward Product Sharing: The Case of Laundry Activities in Japan"
Sustainability, 10(8), 2687 (2018)

Keisho Yabuta, Haruka Futamura, Koji Kawasaki, Masahiko Hirao, Hirokazu Sugiyama
"Design-oriented regression models for H₂O₂ decontamination processes in sterile drug product manufacturing considering rapidity and sterility"
International Journal of Pharmaceutics, 548, 466–473 (2018)

Naoki Yokokawa, Emi Kikuchi-Uehara, Hirokazu Sugiyama, Masahiko Hirao
"Framework for analyzing the effects of packaging on food loss reduction by considering consumer behavior"
Journal of Cleaner Production, 174, 26–34 (2018)

Thuy T.H. Nguyen, Shogo Teratani, Ryuzo Tanaka, Akira Endo, Masahiko Hirao
"A framework for developing a structure-based lumping kinetic model for the design and simulation of refinery reactors"
Computers & Chemical Engineering, 106, 385–395 (2017)

Emi Kikuchi-Uehara, Satoshi Hatanaka, Jun Nakatani, Yasunori Kikuchi, Yukiko Takaoka, Masahiko Hirao
"Development of environmental information provision approaches for enhancing consumers' life cycle thinking skills: Based on scenario analysis between disposable and reusable shopping bags"
Journal of Life Cycle Assessment, Japan, 13(4), 332–348 (2017)

Yasunori Kikuchi, Yuko Oshita, Kazuya Mayumi, Masahiko Hirao
"Greenhouse gas emissions and socioeconomic effects of biomass-derived products based on structural path and life cycle analyses: A case study of polyethylene and polypropylene in Japan"
Journal of Cleaner Production, 167, 289–305 (2017)

Keisho Yabuta, Masahiko Hirao, Hirokazu Sugiyama
"Process model for enhancing yield in sterile drug product manufacturing"
Journal of Pharmaceutical Innovation, 12(3), 194–205 (2017)

Michael Tsang, Emi Kikuchi-Uehara, Guido Sonnemann, Cyril Aymonier, and Masahiko Hirao, "Evaluating Nanotechnologies' Opportunities and Risks Through Integration of Life-Cycle and Risk Assessment" Nature Nanotechnology, 12, 734–739 (2017)

Thuy T. H. Nguyen, Shogo Teratani, Ryuzo Tanaka, Akira Endo, Masahiko Hirao
"Development of a structure-based lumping kinetic model for light gas oil hydrodesulfurization"
Energy Fuels, 31(5), 5673–5681 (2017)

Haruku Shirahata, Masahiko Hirao, Hirokazu Sugiyama
"Decision-support method for the choice between single-use and multi-use technologies in sterile drug product manufacturing"
Journal of Pharmaceutical Innovation, 12(1), 1–13 (2017)

Kotaro Ouchida, Yasuhiro Fukushima, Satoshi Ohara, Akira Sugimoto, Masahiko Hirao, Yasunori Kikuchi
"Integrated design of agricultural and industrial processes: A case study of combined sugar and ethanol production"
AIChE Journal, 63 (2), 560–581 (2017)

Yasunori Kikuchi, Emi Kikuchi-Uehara, Hiroki Matoba, Takao Wada, Tsutomu Odagiri, Junichi Doi, Masahiko Hirao
"Design support for VOC control in SMEs by simulation-based life-cycle engineering Part 2: Case study of metal cleaning process"
Journal of Chemical Engineering of Japan, 50, 68–78 (2017)

Akiko Segawa, Satoshi Yoshikawa, Takayuki Toyama, Hayao Nakanishi, Emi Kikuchi-Uehara, Masahiko Hirao, Hirokazu Sugiyama
"Method for reducing environmental, health, and safety risks in active pharmaceutical ingredient manufacturing based on multiobjective evaluation"
Process Safety and Environmental Protection, 104, 304-313 (2016)

Emi Kikuchi-Uehara, Yasunori Kikuchi, Takao Wada, Tsutomu Odagiri, Junichi Doi, Masahiko Hirao
"Design support for VOC control in SMEs by simulation-based life-cycle engineering Part 1: Framework"
Journal of Chemical Engineering of Japan, 49, 776-784 (2016)

Emi Kikuchi-Uehara, Jun Nakatani, Masahiko Hirao
"Analysis of factors influencing consumers' proenvironmental behavior based on life cycle thinking. Part II: Trust model of environmental information"
Journal of Cleaner Production, 125, 216-226 (2016)

Emi Kikuchi-Uehara, Jun Nakatani, Masahiko Hirao
"Analysis of factors influencing consumers' proenvironmental behavior based on life cycle thinking. Part I: Effect of environmental awareness and trust in environmental information on product choice"
Journal of Cleaner Production, 117, 10-18 (2016)

Thuy T. H. Nguyen, Yasunori Kikuchi, Masaru Noda, Masahiko Hirao
"Impact of local conditions on bio-based chemical process design: selection of input feedstock and production scale and scenario"
Environmental Progress & Sustainable Energy, 35(1) (2016)

Hirokazu Sugiyama, Masaaki Ito, Masahiko Hirao
"Planning method for reducing product losses in manufacturing sterile drug products"
Journal of Chemical Engineering of Japan, 48, 848–855 (2015)

Gioele Casola, Satoshi Yoshikawa, Hayao Nakanishi, Masahiko Hirao, Hirokazu Sugiyama
"Systematic retrofitting methodology for pharmaceutical drug purification processes"
Computers & Chemical Engineering, 80, 177–188 (2015)

Haruna Ishikawa, Jun Nakatani, Yasunori Kikuchi, Masahiko Hirao
"Recycling System Design that incorporates Robustness and Flexibility against Variation Risk"
Journal of Material Cycles and Waste Management, 26, 1–15 (2015)

Teruyuki Shimizu, Yasunori Kikuchi, Hirokazu Sugiyama, Masahiko Hirao
"Design method for a local energy cooperative network using distributed energy technologies"
Applied Energy, 154, 781–793 (2015)

Thuy Nguyen Thi Hong, Yasunori Kikuchi, Masaru Noda, Masahiko Hirao
"A new approach for design and assessment of bio-based chemical processes toward sustainability"
Industrial & Engineering Chemistry Research, 54(20), 5494-5504 (2015)

I-Ching Chen, Yasunori Kikuchi, Yasuhiro Fukushima, Hirokazu Sugiyama, Masahiko Hirao
"Developing technology introduction strategies based on visualized scenario analysis: application in energy systems design"
Environmental Progress & Sustainable Energy, 34, 832–840 (2015)

Emi Kikuchi-Uehara, Yasunori Kikuchi, Masahiko Hirao
"Multi-Viewpoint Activity Model of Environmental and Health Risk Management for Middle-Stream Industrial Processes in the Supply Chain"
Kagakukogakuronbunshu, 40(3), 174–186 (2014)

Yasunori Kikuchi, Masahiko Hirao, Hirokazu Sugiyama, Stavros Papadokonstantakis, Konrad Hungerbühler, Takashi Ookubo, Akinobu Sasaki
"Design of recycling system for poly (methyl methacrylate) (PMMA). Part 2: process hazards and material flow analysis"
International Journal of Life Cycle Assessment, 19, 307–319 (2014)

Yasunori Kikuchi, Masahiko Hirao, Takashi Ookubo, Akinobu Sasaki
"Design of Recycling System for Poly (Methyl Methacrylate) (PMMA) Part 1: Recycling Scenario Analysis"
International Journal of Life Cycle Assessment, 19, 120-129 (2014)

Yasunori Kikuchi, Masahiko Hirao
"Risk Classification and Identification for Chemicals Management in Process Design"
Journal of Chemical Engineering of Japan, 46(7), 488-500 (2013)

Tomoichi Sato, Masahiko Hirao
"Optimum budget allocation method for projects with critical risks"
International Journal of Project Management, 31(1), 126-135 (2013)

Yasunori Kikuchi, Masahiko Hirao, Kenji Narita, Eiji Sugiyama, Sueli Oliveira, Sonia Chapman, Mariana M. Arakaki, Claudia Madrid Cappra
"Environmental Performance of Biomass-Derived Chemical Production: A Case Study on Sugarcane-Derived Polyethylene"
Journal of Chemical Engineering of Japan, 46(4), 319-325 (2013)

Makoto Kato, Masaru Noda, Kazuhiro Takeda, Yasunori Kikuchi, Masahiko Hirao
"Plant Alarm Signal Selection under Assumption of the Best Alarm Generation"
Kagakukogakuronbunshu, 38(6), 408–414 (2012)

Katsuyuki Nakano, Masahiko Hirao
"Manufacturing and Life Cycle Assessment"
Journal of information and management, 33(1), 85–93 (2012)

Alireza Banimostafa, Thuy Thi Hong Nguyen, Yasunori Kikuchi, Stavros Papadokonstantakis, Hirokazu Sugiyama, Masahiko Hirao, Konrad Hungerbühler
"Safety, health and environmental assessment of bioethanol production from sugarcane, corn and corn stover"
Green Processing and Synthesis, 1, 449–461 (2012)

Emi Kikuchi, Yasunori Kikuchi, Masahiko Hirao
"Monitoring and Analysis of Solvent Emissions from Metal Cleaning Processes for Practical Process Improvement"
Annals of Occupational Hygiene, 56(7), 829-842 (2012)

I-Ching Chen, Yasuhiro Fukushima, Yasunori Kikuchi, Masahiko Hirao
"A graphical representation for consequential life cycle assessment of future technologies. Part 2: Two case studies on choice of technologies and evaluation of technology improvements"
The International Journal of Life Cycle Assessment, 17(3), 270-276 (2012)

I-Ching Chen, Yasuhiro Fukushima, Yasunori Kikuchi, Masahiko Hirao
"A graphical representation for consequential life cycle assessment of future technologies. Part 1: Methodological framework"
The International Journal of Life Cycle Assessment, 17(2), 119-125 (2012)

Katsuyuki Nakano, Masahiko Hirao
"Collaborative activity with business partners for improvement of product environmental performance using LCA"
Journal of Cleaner Production, 19(11), 1189-1197 (2011)

Yasunori Kikuchi, Kohjiro Kurata, Jun Nakatani, Masahiko Hirao, Yoshito Oshima
"Analysis of Supercritical Water Oxidation for Detoxification of Waste Organic Solvent in University Based on Life Cycle Assessment"
Journal of Hazardous Materials, 194, 283-289 (2011)

Thuy Thi Hong Nguyen, Yasunori Kikuchi, Hirokazu Sugiyama, Masaru Noda, Masahiko Hirao
"Techno-economic and environmental assessment of bioethanol based chemical process: A case on ethyl acetate"
Environmental Progress & Sustainable Energy, 30, 675–684 (2011)

Kojiro Kurata, Masaru Noda, Yasunori Kikuchi, Masahiko Hirao
"Extension of Event Correlation Analysis for Rationalization of Plant Alarm Systems"
Kagakukogakuronbunshu, 37(4), 338–343 (2011)

Jun Nakatani, Kana Suzuki, Masahiko Hirao
Problem-solving among Stakeholders in the Plastic Containers and Packaging Recycling System: Application of Life Cycle Assessment
Journal of Japan Society of Material Cycles and Waste Management, 22(3), 210–224 (2011, Paper award)

Jun Nakatani, Masahiko Hirao
"Multi-Criteria Design of Plastic Recycling based on Quality Information and Environmental Impacts"
Journal of Industrial Ecology, 15(2), 228-244 (2011)

Jun Nakatani, Asako Okuno, Minoru Fujii, Masahiko Hirao
Life-cycle assessment of material recycling based on market sustainability: A case study of PET bottle recycling
Journal of Life Cycle Assessment, Japan, 7(1), 96–107 (2011)

Emi Kikuchi, Yasunori Kikuchi, Masahiko Hirao
"Analysis of risk trade-off relationships between organic solvents and aqueous agents: Case study of metal cleaning processes"
Journal of Cleaner Production, 19(5), 414-423 (2011)

Jun Nakatani, Masahiko Hirao
"Recycling of Plastic Containers and Packaging and its Effect on Environmental Load Reduction"
Journal of Material Cycles and Waste Management, 21(5), 309–317 (2010)

Akiko Miki, Jun Nakatani, Masahiko Hirao
"Scenario Analysis of Drinking Water Usage Applying Life-Cycle Assessment for Customers" (in Japanese)
Environmental Science, Japan, 23(6), 447–458 (2010)

Yasunori Kikuchi, Masahiko Hirao
"Local Risks and Global Impacts Considering Plant-Specific Functions and Constraints: A Case Study of Metal Parts Cleaning"
Journal of Life Cycle Assessment, Japan, 6(4), 310–326 (2010, Outstanding Paper Award)

Kazuya Mayumi, Yasunori Kikuchi, Jun Nakatani, Masahiko Hirao
"Decision Support for Plastics Recycling System Design Based on Individual Fossil Resource Consumption"
Kagakukogakuronbunshu, 36(4), 243–254 (2010)

Jun Nakatani, Minoru Fujii, Yuichi Moriguchi, Masahiko Hirao
"Life-cycle assessment of domestic and transboundary recycling of post-consumer PET bottles"
The International Journal of Life Cycle Assessment, 15(6), 590-597 (2010)

Yasunori Kikuchi, Masahiko Hirao
"Local Risks and Global Impacts Considering Plant-Specific Functions and Constraints: A Case Study of Metal Parts Cleaning"
The International Journal of Life Cycle Assessment, 15(1), 17-31 (2010)

Thuy Thi Hong Nguyen, Hirokazu Sugiyama, Masaru Noda, Masahiko Hirao
"Structural framework supporting selection of extraction processes under sustainable criteria"
Journal of Chemical Engineering of Japan, 43, 186–195 (2010)

Hirokazu Sugiyama, Ulrich Fischer, Elena Antonijuan, Volker H. Hoffmann, Masahiko Hirao, Konrad Hungerbühler
"How do different process options and evaluation settings affect economic and environmental assessments? A case study on methyl methacrylate (MMA) production processes"
Process Safety and Environmental Protection, 87, 361–370 (2009)

Yasunori Kikuchi, Masahiko Hirao
"Hierarchical Activity Model for Risk-Based Decision Making Integrating Life Cycle and Plant-Specific Risk Assessments"
Journal of Industrial Ecology, 13(6), 945-964 (2009)

Hirokazu Sugiyama, Masahiko Hirao, Ulrich Fischer, Konrad Hungerbühler
"Activity modeling for integrating Environmental, Health and Safety (EHS) consideration as a new element in industrial chemical process design"
Journal of Chemical Engineering of Japan, 41, 884–897 (2008, Outstanding paper award)

Hirokazu Sugiyama, Ulrich Fischer, Masahiko Hirao, Konrad Hungerbühler
"Decision-making framework for chemical process design including different stages of Environmental, Health and Safety (EHS) assessment"
AIChE Journal, 54, 1037–1053 (2008)

Jun Nakatani, Minoru Fujii, Aya Yoshida, Atsushi Terazono, Yuichi Moriguchi, Masahiko Hirao
"Comparison of Domestic and Bilateral Recycling of Post-Consumer PET Bottles"
Journal of the Japan Society of Waste Management Experts, 19(5), 328–339 (2008)

Jun Nakatani, Minoru Fujii, Yuichi Moriguchi, Masahiko Hirao
"Life-Cycle Assessment of Domestic and Transboundary Recycling of Post-Consumer PET Bottles"
Journal of Life Cycle Assessment, Japan, 4(4), 324–333 (2008)

Katsuyuki Nakano, Masahiko Hirao
"Introduction of LCA into Design Process on SME"
Journal of Life Cycle Assessment, Japan, 4(3), 237–243 (2008)

Yasunori Kikuchi, Masahiko Hirao
"Practical Method of Assessing Local and Global Impacts for Risk-Based Decision Making: A Case Study of Metal Degreasing Process"
Environmental Science & Technology, 42(12), 4527-4533 (2008)

Yasunori Kikuchi, Masahiko Hirao
"Life Cycle Assessment of Metal Parts Cleaning Considering Plant-specific Functions and Constraints"
Journal of Life Cycle Assessment, Japan, 4(2), 147–160 (2008)

Ramon Mendivil, Ulrich Fischer, Masahiko Hirao, Konrad Hungerbuehler
"A New LCA Methodology of Technology Evolution (TE-LCA) and its Application to the Production of Ammonia (1950-2000)"
The International Journal of Life Cycle Assessment, 11(2), 98-105 (2006)

Hirokazu Sugiyama, Masahiko Hirao, Ramon Mendivil, Ulrich Fischer, Konrad Hungerbühler
"A hierarchical methodology for chemical process design based on Life Cycle Assessment"
Process Safety and Environmental Protection, 84, 63–74 (2006, Top 75 most cited award, 2006-2009)

Hirokazu Sugiyama, Yasuhiro Fukushima, Masahiko Hirao, Stefanie Hellweg, Konrad Hungerbühler
"Using standard statistics to consider uncertainty in industry-based Life Cycle Inventory databases"
International Journal of Life Cycle Assessment, 10, 399–405 (2005)

Yasuhiro Fukushima, Mayuko Yamashita, Masahiko Hirao
"Function and information flow model of an adaptive environmental management system in households: a progressive use of customized environmental balance sheets"
環境科学会誌, 18(2), 103-113 (2005)

Masatoshi Shimada, Kyouichi Miyamoto, Masahiko Hirao, Takashi Nakamura
(Title in Japanese)
Tetsu-to-Hagane, 91(1), 184–191 (2005)

Hiroshi Uesugi, Tomohiro Suginaka, Masashi Fujiwara, Yuki Kuwauchi, Masahiko. Hirao
"Development of an Inter-Process Linkage Technology for Fluoro-Nitric Acid Washing Agent and Its LCA Evaluation"
Applied Energy, 80(2), 213-223 (2005)

Soorathep Kheawhom, Masahiko Hirao
"Decision Support Tools for environmentally benign process design under uncertainty"
Computers & Chemical Engineering, 28(9), 1715-1723 (2004)

Y. Fukushima, M. Shimada, S. Kraines, M. Hirao, M. Koyama
"Scenarios of solid oxide fuel cell introduction into Japanese society"
Journal of Power Sources, 131(1-2), 327-339 (2004)

Soorathep Kheawhom, Masahiko Hirao
"Environmentally Benign Separation Process Synthesis"
Journal of Chemical Engineering of Japan, 37(2), 243-252 (2004)

H.Uesugi, T.Suginaka, M.Fujiwara, Y.Kuwauchi, M.Hirao
"Use Technology for Fluoro-Nitric Acid Cascade with Washing Chemicals and Its LCA Evaluation"
Energy and Resources, 24(1), 56–60 (2003)

Masahiko Hirao, Hirokazu Sugiyama
"Integrated Information Infrastructure for Environmentally Conscious Process Design"
Journal of Computer Chemistry Japan, 2(3), 79–86 (2003)

Yasuhiro Fukushima, Masahiko Hirao
"A Structured Framework and Language for Scenario-Based Life Cycle Assessment"
The International Journal of Life Cycle Assessment, 7(6), 317-329 (2002)

Soorathep Kheawhom, Masahiko Hirao
"Decision Support Tools for Process Design and Selection"
Computers & Chemical Engineering, 26(4-5), 747-755 (2002)

Shinya Muramatsu, Masahiko Hirao
"Molecular Dynamics Simulation of the Interactions of H Radicals with a Hydrogenated Si(001) Surface"
Japanese Journal of Applied Physics, 41, 1507-1514 (2002)

Shinya Muramatsu, Masahiko Hirao
"Ab Initio Study of MetastableStructures on a Hydrogenated Si(001) Surface"
Japanese Journal of Applied Physics, 41, L171-L173 (2002)

Yasuhiro Fukushima, Masahiko Hirao
"Distributed Information System for Environmentally Conscious Process Design"
Computer Aided Chemical Engineering, 41(8), 895-900 (2000)

Yasuhiro Fukushima, Masahiko Hirao
"Lifecycle model for PET bottle recycle system evaluation"
Trans.IEE of Japan, 118-C(9), 1250–1256 (1998)

M. Miyao, K. Nakagawa, Y. Kimura, M. Hirao
"Local-Symmetry Effect on Light Emissivity from SiGe Quantum Wells"
Thin Solid Films, 294(1-2), 204-207 (1997)

Masahiko Hirao, Tsuyoshi Uda
"First-Principles Calculation of the Optical Properties and Stability of Hydrogenated Silicon Clusters"
International Journal of Quantum Chemistry, 52(4), 1113-1119 (1994)

Masahiko Hirao, Tsuyoshi Uda
"Electronic structure and optical properties of hydrogenated silicon clusters"
Surface Science, 306(1-2), 87-92 (1994)

Sigeo Ihara, Tsuyoshi Uda, Masahiko Hirao
"Electronic structure of a dimer-adatom-stacking-fault model for the Si(111)7X7 reconstructed surface"
Applied Surface Science, 60-61, 22-28 (1992)

K. Kikuchi, T. Uda, A. Sakuma, M. Hirao, Y. Murayama
"Electronic band calculations for zinc-blende BN with nonlocal density functionals"
Solid State Communications, 81(8), 653-657 (1992)

Masahiko Hirao, Tsuyoshi Uda, Yoshimasa Murayama
"Electronic band structure of YBa2Cu3O7 and YBa2Cu3O6 by density functional pseudopotential method"
Physica C: Superconductivity, 195(3-4), 230-238 (1992)

H.Nishimura, M. Hirao
"Analytical theory of solution of attracting molecules of different size derived from hypernetted-chain equation for radial distribution function"
The Journal of Chemical Physics, 97(3), 2075-2083 (1992)

M. Hirao, T. Uda, Y. Murayama
"Electronic structure of YBa2Cu3O6 and YBa2Cu3O7 by density-functional pseudopotential band calculation"
Physica C: Superconductivity, 185-189, 1551-1552 (1991)

S. Ihara, S. L. Ho, T. Uda, M. Hirao
"Ab initio molecular-dynamics study of defects on the reconstructed Si(001) surface"
Physical Review Letters, 65(15), 1909-1912 (1990)

Hajime Nishimura, Masahiko Hirao
"Stabilization of long-cycle oscillation in numerical solution of distillation"
Journal of Chemica. Engineering of Japan, 21(3), 300-305 (1988)

Hajime Nishimura, Masahiko Hirao
"Sequentialization of a graph as a sparse-Matrix technique for predominantly tridiagonal matrices"
Chemical Engineering Science, 43(10), 2705-2713 (1988)

Cycling

Walking with prof. Hirao's pet dog