研究者詳細 - 長尾　征洋

論文 - 長尾　征洋

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重み付け納期遅れの最小化と段取り者の負荷平準化を考慮したフレキシブルジョブショップスケジューリング

森永泰彦, 長尾征洋, 佐野充

情報処理学会研究報告. BIO, バイオ情報学 2014 巻 ( 24 ) 頁： 1 - 7 2014年6月

記述言語：日本語掲載種別：研究論文（学術雑誌）出版者・発行元：一般社団法人情報処理学会

本論では,多品種の製品の受注生産している中小企業におけるフレキシブルジョブショップスケジューリング問題 (FJSP) の最適化について述べる.問題の目的関数には重み付けした納期遅れと段取り者の負荷の平準化を組み入れ,最適化手法としては島モデルを組み入れた Genetic Algorithm(GA) を開発し,実在する受注生産型の中小企業の生産データを用いて研究を行った.開発した GA の解と納期のみを優先させる EDD(Earliest due date) などのスケジュールによって得た値とを比較し,本手法の有効性を確認した.また,この手法を用いて実在する企業に発生すると考えられるリスク (段取り者の離脱や顧客からの過度な納期短縮要求) とその対策のための投資に関する数値実験を行い,リスクの影響と対策の効果を定量的に評価できることを確認した.本手法は他の目的関数も織り込むことが可能であるので様々な形態の製品やサービスの受注型中小企業の客観的経営判断に寄与できると考えられる.

CiNii Research

重み付け納期遅れの最小化と段取り者の負荷平準化を考慮したフレキシブルジョブショップスケジューリング

森永泰彦, 長尾征洋, 佐野充

情報処理学会研究報告. MPS, 数理モデル化と問題解決研究報告 2014 巻 ( 24 ) 頁： 1 - 7 2014年6月

記述言語：日本語掲載種別：研究論文（学術雑誌）出版者・発行元：一般社団法人情報処理学会

CiNii Research

Optimization of flexible job-shop scheduling with weighted tardiness and setup-worker load balance in make-to-order manufacturing

Morinaga Y., Nagao M., Sano M.

2014 Joint 7th International Conference on Soft Computing and Intelligent Systems, SCIS 2014 and 15th International Symposium on Advanced Intelligent Systems, ISIS 2014 頁： 87 - 94 2014年2月

記述言語：日本語掲載種別：研究論文（学術雑誌）出版者・発行元：2014 Joint 7th International Conference on Soft Computing and Intelligent Systems, SCIS 2014 and 15th International Symposium on Advanced Intelligent Systems, ISIS 2014

This paper describes the optimization of a flexible job-shop scheduling problem (FJSP) in small and medium-sized enterprises (SMEs) with make-to-order (MTO) manufacturing of products of many kinds. Incorporating weighted tardiness and setup-worker load balance into the objective function of the problem, we have developed a genetic algorithm (GA) using the island model as an optimization method and conducted a study based on production data of actual MTO manufacturing SMEs. We compared the solutions of the GA developed with the values obtained from schedules for the earliest due dates (EDD) that prioritized only the due dates and confirmed the effectiveness of the proposed method Additionally, we conducted numerical experiments using this technique on the risks likely to arise in actual companies (resignation of setup-workers and excessive demands of a customer for moving the due date forward) and investment of countermeasures. We confirmed that it was possible to evaluate the effects of risks and countermeasures quantitatively. This method can contribute to the objective business judgment of SMEs providing MTO products and services by incorporating other objective functions.

DOI： 10.1109/SCIS-ISIS.2014.7044681

Scopus

強制参加公共財ゲームにおいて個別学習を通して協力的なプール罰戦略がフリーライダー戦略に勝利する

佐野充, 長澤健太, 長尾征洋

人間環境学研究 12 巻 ( 2 ) 頁： 181 - 189 2014年

Fatigue and quality of life in citrin deficiency during adaptation and compensation stage

Okano Y., Kobayashi K., Ihara K., Ito T., Yoshino M., Watanabe Y., Kaji S., Ohura T., Nagao M., Noguchi A., Mushiake S., Hohashi N., Hashimoto-Tamaoki T.

Molecular Genetics and Metabolism 109 巻 ( 1 ) 頁： 9 - 13 2013年5月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：Molecular Genetics and Metabolism

Citrin-deficient children and adolescents between adult-onset type II citrullinemia and neonatal intrahepatic cholestasis by citrin deficiency do not have clear clinical features except for unusual diet of high-fat, high-protein, and low-carbohydrate food. The aims of the present study are to characterize fatigue and quality of life (QOL) in citrin-deficient patients during adaptation and compensation stage, and to define the relationship between fatigue and QOL. The study subjects were 55 citrin-deficient patients aged 1-22. years (29 males) and 54 guardians. Fatigue was evaluated by self-reports and proxy-reports of the PedsQL Multidimensional Fatigue Scale. QOL was evaluated by the PedsQL Generic Core Scales. Both scale scores were significantly lower in child self-reports (p< 0.01 and p< 0.05, respectively) and parent proxy-reports (p< 0.01 and p< 0.01, respectively) than those of healthy children. Citrin-deficient patients with scores of 50 percentile or less of healthy children constituted 67.5% of the sample for the Fatigue Scale and 68.4% for the Generic Core Scales. The PedsQL Fatigue Scale correlated with the Generic Core Scales for both the patients (r = 0.56) and parents reports (r = 0.71). Assessments by the patients and their parents showed moderate agreement. Parents assessed the condition of children more favorably than their children. The study identified severe fatigue and impaired QOL in citrin-deficient patients during the silent period, and that such children perceive worse fatigue and poorer QOL than those estimated by their parents. The results stress the need for active involvement of parents and medical staff in the management of citrin-deficient patients during the silent period. © 2013 Elsevier Inc.

DOI： 10.1016/j.ymgme.2013.01.020

Scopus

An all-solid-state rechargeable aluminum-air battery with a hydroxide ion-conducting Sb(V)-doped SnP2O7 electrolyte

Hibino, T; Kobayashi, K; Nagao, M

JOURNAL OF MATERIALS CHEMISTRY A 1 巻 ( 47 ) 頁： 14844 - 14848 2013年

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：Journal of Materials Chemistry A

An anhydrous hydroxide ion conductor, Sn0.92Sb 0.08P2O7, can function as an electrolyte for aluminum-air batteries, where aluminum is oxidized to an aluminate species during discharge, and the aluminate species is reduced to aluminum by charging the cell. This battery generated an open-circuit voltage of ca. 1.6 V with a discharge capacity of ca. 800 mA h g-1electrode. © 2013 The Royal Society of Chemistry.

DOI： 10.1039/c3ta12707a

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Scopus

QOL指標と維持費用に基づく撤退・集結市街地の遺伝的アルゴリズムを用いた選定方法査読有り

長尾征洋、青野隆仁、戸川卓哉、加藤博和、佐野充

土木計画学研究・論文集 29 巻頁： I_339-I_348 2012年12月

Alternating-Current Electrolysis for the Production of Phenol from Benzene

Lee, B; Naito, H; Nagao, M; Hibino, T

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 51 巻 ( 28 ) 頁： 6961 - 6965 2012年

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：Angewandte Chemie - International Edition

Works both ways: Phenol was produced by both anodic and cathodic benzene oxidations over the V xO y-Sn 0.9In 0.1P 2O 7 electrode in an electrochemical cell, thus allowing the use of AC electrolysis for phenol production. AC electrolysis was found to be more efficient and selective toward phenol production than DC electrolysis. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

DOI： 10.1002/anie.201202159

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Scopus

PubMed

Hydroxide Ion Conducting Antimony(V)-Doped Tin Pyrophosphate Electrolyte for Intermediate-Temperature Alkaline Fuel Cells

Hibino, T; Shen, YB; Nishida, M; Nagao, M

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 51 巻 ( 43 ) 頁： 10786 - 10790 2012年

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：Angewandte Chemie - International Edition

Ion conductor: A series of Sn 1-xA xP 2O 7 (A V=V, Nb, Ta, and Sb) compounds was synthesized, among which Sn 0.92Sb 0.08P 2O 7 (see picture) showed the highest hydroxide ion conductivity in the temperature range of 50-200 °C (0.08 S cm -1 at 100 °C and 0.05 S cm -1 at 200 °C). This high conductivity was also confirmed under fuel-cell-operating conditions. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

DOI： 10.1002/anie.201205022

Web of Science

Scopus

PubMed

QOL指標と維持費用に基づく撤退・集結市街地の遺伝的アルゴリズムを用いた選定方法

長尾征洋, 青野隆仁, 戸川卓哉, 加藤博和, 佐野充

土木学会論文集D3（土木計画学） 68 巻 ( 5 ) 頁： I_339 - I_348 2012年

記述言語：日本語掲載種別：研究論文（学術雑誌）出版者・発行元：公益社団法人土木学会

都市のコンパクト化を進める上で，都市的利用を中止する地区および集結する地区の選定を，QOL（Quality Of Life）指標および市街地維持費を評価値として選定し，遺伝的アルゴリズムを用いて最適化を行った．新潟県旧上越市に適用した結果，QOL最大化の場合，郊外から郊外へ移転し，特に大型病院のある地区や緑地の豊富な地区への集結が最適であることが示された．一方，市街地維持費最小化の場合，地価が低く築年数が経過している住宅の多い地区から撤退し，鉄道駅周辺や商業施設の充実した幹線道路沿線へ集結することが最適であることが示された．さらに，QOLと市街地維持費を共に考慮する両立モデルでは，市街地維持費削減効果の大きい地区から先に撤退し，その後QOLの向上につながる移転を行うことが最適であることが分かった．

DOI： 10.2208/jscejipm.68.i_339

CiNii Research

遺伝的アルゴリズムによる医療施設のエネルギーマネジメントの最適化

長尾征洋, 竹内佑介, 佐野充

エネルギー・資源 = Energy and resources 32 巻 ( 5 ) 頁： 318 2011年9月

QOL指標を用いた撤退・再集結地区選定への遺伝的アルゴリズムの適用-旧上越市を対象として- 査読有り

青野隆仁,長尾征洋,戸川卓哉,加藤博和,佐野充

土木計画学研究・講演集 43 巻頁： 284 2011年5月

Compact bipolar plate-free direct methanol fuel cell stacks

Dong, X; Takahashi, M; Nagao, M; Hibino, T

CHEMICAL COMMUNICATIONS 47 巻 ( 18 ) 頁： 5292 - 5294 2011年

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：Chemical Communications

Fuel cells with a PtAu/C anode and a Pr-doped Mn2O3/C cathode were stacked without using a bipolar plate, and their discharge properties were investigated in a methanol aqueous solution bubbled with air. A three-cell stack exhibited a stack voltage of 2330 mV and a power output of 21 mW. © The Royal Society of Chemistry 2011.

DOI： 10.1039/c1cc10493d

Web of Science

Scopus

PubMed

遺伝的アルゴリズムによる医療施設のエネルギーマネジメントの最適化

長尾征洋, 竹内佑介, 佐野充

エネルギー・資源学会論文誌 32 巻 ( 5 ) 頁： 24 - 32 2011年

記述言語：日本語掲載種別：研究論文（学術雑誌）出版者・発行元：一般社団法人エネルギー・資源学会

The present study evaluated the optimized operation management of a cold air power system at a large-scale medical facilityduring the summer, when the air-conditioning cold load reaches the annual maximum. The evaluation was conducted withrespect to energy costs, CO2 emissions and robustness of the energy-supply system. Since there are a large number ofpossible solutions as to which machines and which refrigeration levels should be operated, a genetic algorithm (GA) wasused to obtain approximate, applicable solutions stochastically, to determine a daily plan of operation for the refrigerationsystem in a timely manner. According to the operation management plan obtained from the GA, over 10% of the energy costsand the CO2 emissions can be reduced by improved operation. The stability of the cold air power system when a large-sizedphotovoltaic system is installed or when one of the refrigeration units breaks down can also be evaluated by using the GA. Ina medical faculty we taken up, the estimated reduction in CO2 by adopting the photovoltaic system was calculated to be about16% compared to the current operation management plan. And also the stability of present energy-supply system wasvalidated except for when the vapor-absorption-type refrigerator was down.

DOI： 10.24778/jjser.32.5_24

CiNii Research

Separator-free fuel cell stacks operating in a mixture of hydrogen and air

Nagao, M; Takahashi, M; Hibino, T

ENERGY & ENVIRONMENTAL SCIENCE 3 巻 ( 12 ) 頁： 1934 - 1940 2010年12月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：Energy and Environmental Science

Fuel cells for vehicular and residential applications have encountered a key technical challenge in cost reduction. This challenge can be avoided by operating a fuel cell stack without the use of gas separators, which are expensive and voluminous and therefore comprise a significant portion of the cost of a fuel cell stack. Single-chamber fuel cells (SCFCs) have the potential of realizing such operation, because there is no need for separation between fuel and air. In this paper, we present a selective anode (PtAu/C) and cathode (Pr-doped Mn2O3/C) for respective electrochemical hydrogen oxidation and oxygen reduction reactions in a SCFC. A single cell with these electrodes operated at 50 °C generated an open-circuit voltage of 1204 mV and a peak power density of 50 mW cm-2 in a feed mixture of 80% hydrogen and 20% air at a flow rate of 30 mL min-1. The high selectivity of these electrodes also enabled the design of two different separator-free fuel cell stacks, parallel and perpendicular to the gas stream. Both cell stacks exhibited increasing stack voltage and power output almost proportionally to the increase in the number of single cells. These results demonstrate that the separator-free fuel cell stack shows high potential for a significant reduction of the cost of fuel cell systems. © The Royal Society of Chemistry.

DOI： 10.1039/c0ee00288g

Web of Science

Scopus

MFCAの経年解析の課題と月次簡易MFCAの提案

佐野充，長尾征洋，杉本拓弥，江端祐也

第15回商品開発・管理学会創立10周年記念全国大会講演・論文集頁： 130-135 2010年11月

Electrochemical Property of Mg-doped LiMnPO4/C for Li-ion Battery

Masahiro Nagao, Hiroki Ohmae, Miho Fujita, and Mitsuru Sano

Meeting Abstract-Electrochemical Society 901 巻頁： 164 2009年5月

*システムダイナミクスによる名古屋市下水道モデルの構築と環境改善対策シミュレーション

長尾征洋、渡会育也、佐野充、栗本英和

システムダイナミックス学会日本支部予稿集頁： 17-20 2009年5月

A Single-Chamber SOFC Stack: Energy Recovery from Engine Exhaust

Nagao, M; Yano, M; Okamoto, K; Tomita, A; Uchiyama, Y; Uchiyama, N; Hibino, T

FUEL CELLS 8 巻 ( 5 ) 頁： 322 - 329 2008年10月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：Fuel Cells

The feasibility of applying single-chamber solid oxide fuel cells (SC-SOFCs) to power generators for exhaust energy recovery was investigated using both model and actual exhaust gases. In the experiments with model exhaust gases, a single cell, Ni-Ce0.8Sm0.2O1.9/YSZ/ La0.8Sr0.2MnO3, was operated in a mixture of gases containing ppm levels of CH4, C2H6, C3H3, C4H10and O2. The cell performance was considerably affected by the molar ratio of total hydrocarbons to O2, the operating temperature and the gas flow rate. The optimal operating conditions of the SC-SOFC were found to be similar to those found in actual exhaust from gasoline engines. Thermal and mechanical loading performance tests demonstrated high tolerance towards thermal cycling and breakage of the electrolyte. Performance tests with and without a gas separator suggested that there is no requirement for a gas separator in an actual exhaust. In the experiments with actual exhaust gases, a 12-cell stack was installed to a 250-cm3 engine. The open circuit voltages (OCVs) were between 5 and 8 V and independent of the number of revolutions, but were lower than the values expected from the model exhaust results. This was considered to be due to the deviation of the actual exhaust gases from the model gases. Nevertheless, the stack performance was reproducible and stable in the range from 1,500 to 5,500 rpm. The resultant peak power reached above 1 W at 4,500 rpm. © 2008 WILEY-VCH Verlag GmbH & Co. KGaA.

DOI： 10.1002/fuce.200800017

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Scopus

De-NOx reactor and NOx sensor using In3+-doped SnP2O7 with PtRhBa/C electrode

Nagao, M; Yoshii, T; Namekata, Y; Teranishi, S; Sano, M; Tomita, A; Hibino, T

SOLID STATE IONICS 179 巻 ( 27-32 ) 頁： 1655 - 1661 2008年9月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：Solid State Ionics

An electrochemical cell using an In3+-doped SnP2O7 proton conductor as the electrolyte exhibited comparable NO reduction and sensing properties at around 250 °C. NO was reduced to N2 most effectively when using a PtRhBa/C cathode by applying current to the cell. High electrocatalytic activity was maintained even in the presence of CO2 and H2O. PtRhBa/C was also found to be the most effective electrode material for NOx sensing. The sensor exhibited electromotive force (EMF) response towards the positive direction with increasing NO and NO2 concentrations. The polarization curves of NO/NO2 and water vapor indicated that the sensing mechanism is based on the mixed potential. The effects of added Rh and Ba to the Pt/C electrode were explained in terms of selective reduction and adsorption of NO/NO2 over the electrode surface, respectively. © 2008 Elsevier B.V. All rights reserved.

DOI： 10.1016/j.ssi.2008.03.033

Web of Science

Scopus

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