http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Development of hybrid manufacturing/remanufacturing system
Yoshihiko Sasaki,Yasutaka Kainuma 대한산업공학회 2015 대한산업공학회 추계학술대회논문집 Vol.2015 No.11
Japan is facing environmental problem and resource depletion problem. Therefore, the introduction of the recycling manufacturing system becomes essential. So, the action of firms for environmental problems is evaluated from the corporate social responsibility. In this research, we focus on the closed loop supply chain (CLSC) from the view point of hybrid manufacturing/remanufacturing system. We propose the hybrid manufacturing/remanufacturing model which consists of manufactured new products and remanufactured products including refurbished products. In this case, refurbished products are as good as new. Then we carry out the numerical experiments that assume profit as the objective function. While, we also consider the relationship cannibalization effect and market expansion. As a result, it is clarified that hybrid manufacturing/remanufacturing model that we proposed is able to make more profit.
Decision Model Development under Different Scenarios for New Product Development
Thanyatorn Fongsatitkul,Yasutaka Kainuma 대한산업공학회 2020 Industrial Engineeering & Management Systems Vol.19 No.3
Under a highly competitive market, companies have to develop a new product as an effective strategy to maintain or even enhance their market shares. New product development (NPD) with an involvement of environmental dimension, nowadays, is one of the most crucial factors for business success. A feasibility study and a milestone of the NPD project have to be systematically established and subsequently evaluated. A Bayesian decision analysis was then employed to deal with three uncertainties of the future market shares with or without an environmental-friendly component and the competitors’ responses, producing expected values and variances for three uncertainties. An application of a decision model using MATLAB can be an effective tool to identify whether or not the NPD project under different scenarios should be continued in terms of future expected profits. Four scenarios were explored: Business as usual (BAU), improvements with or without an involvement of environmental aspects, and project termination. Moreover, three uncertainties were also considered: market status (future conventional market share and environmentallyfriendly market share), and competitors’ reactions. Sensitivity analysis of the selected scenario/model under three uncertainties was finally established to identify the effects of change in the uncertainties as the input parameters with respect to the output profit.
Exploring Light Industries’ Supply Chain Costs through Multi-Objective Optimization
Tracey Tshivhase,Yasutaka Kainuma 대한산업공학회 2020 Industrial Engineeering & Management Systems Vol.19 No.4
Environmental impact of greenhouse gases in the supply chain has been a topic of major interest recent years. A bi-objective optimization problem is used to minimize the total cost and the nitrogen oxides in a typical light manufacturing industry. Nitrogen oxides are a well-known component of smog which reduces visibility in the atmosphere. This paper models a supply chain problem for cost minimization while also considering the nitrogen emissions from the facilities and transportation. Initially, the total costs part of the bi-objective problem is solved as a mixed integer linear problem using the genetic algorithm. The model minimizes the total costs of the supply chain including transportation costs. The proposed MILP is tested with random data of 11 different sets. The facilities and transportation options are limited by their capacities. A genetic algorithm in MATLAB was initially used for solving the first objective function. For better results, the model was finally solved with particle swarm optimization.
A Study on Quantification of Kano`s Quality Model
(Kentaro Yasuda),(Atsushi Ootaki),(Yasutaka Kainuma) 한국품질경영학회 2001 The Asian Journal on Quality Vol.2 No.2
This paper proposes a method for quantifying the types of quality elements proposed by Kano; namely: attractive quality, one-dimensional quality, and must-be quality. Kano`s classification of required quality has helped us improve our thinking in product development. However, his classification is conceptual rather than quantitative, and the conventional techniques of questionnaire and group interview cannot provide quantification of the relationship between the degree of customer satisfaction and the degree of sufficiency of required qualities. This paper describes how a quality element under Kano`s quality model can be expressed as a utility function, and describes an application to quality design of a cellular phone.
Trends and Research Challenges in Remanufacturing
Mitsutaka Matsumoto,Shanshan Yang,Kristian Martinsen,Yasutaka Kainuma 한국정밀공학회 2016 International Journal of Precision Engineering and Vol.3 No.1
Remanufacturing is one of the critical elements moving our economy toward one that is circular. Today, remanufacturing is attracting growing attention worldwide. Meanwhile, despite its potential in terms of its effects on both environment and economy, remanufacturing has not yet been sufficiently exploited. This indicates that there exist both drivers for and barriers to an increase in remanufacturing in economies. Although there are both technological and non-technological requirements for remanufacturing, R&D is unavoidable for its promotion. This article outlines trends, drivers, and barriers for remanufacturing, and presents reviews of studies on selected topics in remanufacturing. The selected R&D topics in this article are product design for remanufacturing, additive manufacturing for remanufacturing, operations management in remanufacturing, and business models for remanufacturing.