Conference Agenda

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Session Overview
Session
SES 8.1: Permeating lean thinking into value networks: an Asian perspective
Time:
Thursday, 29/Jun/2017:
9:00am - 10:00am

Session Chair: Koichi Murata
Location: Aula Convegni (first floor)

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Presentations

320. On Stability of Supply Performance by Work-In-Progress Management: A Case Analysis of Photovoltaics-based Electricity Supply System with Storage Batteries

Tetsuya Sato1, Koichi Murata2, Hiroshi Katayama1

1Waseda University, Japan; 2College of Industrial Technology, Nihon University, 1-2-1 Izumi-cho, Narashino, Chiba 275-8575, Japan

For many years, supply performance of goods to demand sites has been analysed, designed and improved by various ways such as Heijunka (load-levelling) concept and methodology. Basic structure of this approach is, in general, to adapt demand speed and fluctuation by managing work-in-progress (WIP). Meanwhile, energy loss reduction in electricity supply operations contributes to serviceability of electric power industry that consists of supply stability, cost rationality, resource savings etc. Furthermore, to expand renewable energy sources in the total energy consumption is a social trend for increasing energy self-sufficiency and reducing environmental load, but on the other hand the introduction of renewable energies involves challenges such as unstable output, high costs and installation constraints. For solving these problems, introduction of the smart-grid platform, which is an interconnected electricity network with power conditioning, production control and distribution management functions, is advocated in recent years. This research, taking electricity supply operations on the microgrid (semi self-contained smart-grid) platform using photovoltaic generation as the objective system, examines its performance for identifying the way to stable supply by WIP managing model. Performance analysis is examined by simulation experiments with the proposed model and obtained results suggest that Heijunka of power supply into the microgrid is realised in time-domain by the storage batteries. Moreover, the proposed model reveals optimal parameters of the entire system to each interconnected household, such as number of the photovoltaic generator units and capacity of storage batteries.


327. Legend and Future Horizon of Lean Concept and Technology

Hiroshi Katayama

Waseda University, Japan

Back to 1990, “The Machine that Changed the World” was published, which is one bestselling book on the way of manufacturing businesses that was named “lean production” in this book. It stressed the distinctive feature of the way of management of Japanese car industry, however, described feature is not necessarily Japanese car industry but also other manufacturing industries in Japan including almost all fabrication and process industries. Lean management, of which shop floor version is lean production, is actually a tradition of Japanese way of organizational management. Original concept can be recognized in Japanese turbulent period in 15th to 16th century. Typical example is “Akazonae: A type of military unit used in feudal Japan” that means Red Colour-armed Soldiers originated by Takeda warriors and Sanada warriors. The key point of this concept is fighting with an indomitable spirit and it is inherited to the concept of making unremitting efforts for business called “contradiction-driven approach” as the key concept of lean management. From early Meiji era (1868-), Japanese newly established civilian government conducts to creating industrialised society and encouraging to catch up related technology from mainly western countries. In early Showa era (1926-), industrialization has been took off gradually including establishment of Toyota Motor Co., Ltd., and many relevant methods contributing productivity have been developed and transferred among industries. Conceptual legends are i.e. Muri (Strain), Mura (Variegate), Muda (Waste) and Plan, Do, Check and Action Cycle (PDCA). Nowadays, all of these words are well known among industrial professionals and concerned academicians over the world. Based on the above issues, this paper tries to figure out historical trend with remarkable milestones and future horizon of the essential concept and technologies of lean management. These includes white box vs. black box approaches, proactive vs. reactive operations and similarity-based model analysis. (297 Words)


364. Measuring Efficiency and Creativity of NPD quoted by QFD

Koichi Murata

Nihon University, Japan

This paper analyzes a process of new product development (NPD). For the analysis, one analysis method and two indexes to measure NPD performance are proposed. The analysis method quoted by quality function deployment (QFD) matrix is developed to clarify a state transition of NPD process, which are from an extraction of customer needs to a design of product specification. Two indexes measure efficiency and creativity in the focused process. As the analysis result of three NPD cases with the collaborative company in Japan, various types of NPD are confirmed from the viewpoint of the two indexes. Proposed framework to consider new product concept is also constructed for becoming useful for future NPD.



 
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