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Article
Publication date: 28 October 2000

Gyu C. Kim and Marc J. Schniederjans

The purpose of this paper is to compare implementation of short‐run (i.e., small lot‐size) statistical process control (SPC) techniques in just‐in‐time (JIT) manufacturing…

241

Abstract

The purpose of this paper is to compare implementation of short‐run (i.e., small lot‐size) statistical process control (SPC) techniques in just‐in‐time (JIT) manufacturing environments. Using U.S. and Japanese questionnaires, this research focuses on the use of several manufacturing elements such as setup time, stability of process and quality improvement. Barriers to the implementation of short‐run SPC techniques are also examined. Results show significant difference in the way some short‐run SPC techniques are utilized by JIT and non‐JIT manufacturers.

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American Journal of Business, vol. 15 no. 2
Type: Research Article
ISSN: 1935-519X

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Article
Publication date: 22 April 2000

Gyu C. Kim and Marc J. Schniederjans

The purpose of this paper is to compare the implementation of short‐run (i.e., small lot‐size) statistical process control (SPC) techniques for manufacturing between the U.S. and…

259

Abstract

The purpose of this paper is to compare the implementation of short‐run (i.e., small lot‐size) statistical process control (SPC) techniques for manufacturing between the U.S. and Japan. Using U.S. and Japanese questionnaires, this research focuses on the use of several manufacturing management elements such as setup time, stability of process, and quality improvement. These elements are compared in terms of their respective countries’ short‐run SPC techniques implementation. Barriers to the implementation of short‐run SPC techniques are also examined. In addition, this research identifies current process control techniques used to support short‐run SPC in both countries. Results show how the significantly different short‐run SPC techniques are utilized in the U.S. and Japan.

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American Journal of Business, vol. 15 no. 1
Type: Research Article
ISSN: 1935-519X

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Article
Publication date: 1 April 2003

Marc J. Schniederjans and Gyu C. Kim

The primary objective of an enterprise resource planning (ERP) system is to help integrate an organization's business operations and processes effectively and efficiently. Not all…

7978

Abstract

The primary objective of an enterprise resource planning (ERP) system is to help integrate an organization's business operations and processes effectively and efficiently. Not all firms have been successful in their ERP implementations and to that end research has helped to identify many factors that might be critical to a successful implementation. Such factors as the use of business process reengineering (BPR), and establishing a total quality management (TQM) culture have all shown to play important roles in ERP implementation. The focus of this survey research on US electronic manufacturing firms is to identify successful integration sequences of TQM and BPR with ERP. The findings reveal that both the sequence of implementation and the strategies selected to initiate ERP systems can significantly impact business performance successfulness.

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International Journal of Operations & Production Management, vol. 23 no. 4
Type: Research Article
ISSN: 0144-3577

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Available. Open Access. Open Access
Article
Publication date: 31 August 2014

Seong-Gyu Jeon and Yong Jin Kim

The weapon system of The Navy is the small quantity producing system on multiple kinds. It is consisted of various equipment and the subordinate parts of those which can repair…

293

Abstract

The weapon system of The Navy is the small quantity producing system on multiple kinds. It is consisted of various equipment and the subordinate parts of those which can repair the damaged part. The operating procedure concerning warship's repair parts managed under these systems is as follows. Firstly, if demand of repair parts occurs from warship which is the operating unit of weapon, then the Fleet(the repair & supply support battalion) is in charge of dealing with these requests. If certain request from warship is beyond the battalion's capability, it is delivered directly to the Logistic Command. In short, the repair and supply support system of repair parts can be described as the multi-level support system. The various theoretical researches on inventory management of Navy's repair parts and simulation study that reflects reality in detail have been carried out simultaneously. However, the majority of existing research has been conducted on aircraft and tank's repairable items, in that, the studies is woefully deficient in the area concerning Navy's inventory management. For that reason, this paper firstly constructs the model of consumable items that is frequently damaged reflecting characteristics of navy's repair parts inventory management using ARENA simulation. After that, this paper is trying to propose methodology to analyze optimal inventory level of each supply unit through OptQuest, the optimization program of ARENA simulation.

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Journal of International Logistics and Trade, vol. 12 no. 2
Type: Research Article
ISSN: 1738-2122

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Article
Publication date: 12 September 2016

Mitsuo Ozawa, Gyu-Yong Kim, Gyeong-Choel Choe, Min-Ho Yoon, Ryoichi Sato and Keitetsu Rokugo

The behavior of high-performance concrete (HPC) at high temperatures is very complex and also affects the global behavior of heated HPC-based structures. Researchers have also…

320

Abstract

Purpose

The behavior of high-performance concrete (HPC) at high temperatures is very complex and also affects the global behavior of heated HPC-based structures. Researchers have also reported how various types of fibers affected the mechanical properties of cement-based materials at high temperatures. This study aims to discuss the effects of high temperatures on the compressive strength and elastic modulus of HPC with polypropylene (PP) and jute fiber.

Design/methodology/approach

Adding synthetic fiber (especially the PP type) to HPC is a widely used and effective method of preventing explosive spalling. Although researchers have experimentally determined the permeability of heated PP-fiber-reinforced HPC, few studies have investigated how adding natural fiber such as jute to this type of concrete might prevent spalling. In this study, the effects of high temperatures on the compressive strength and elastic modulus of HPC with PP and jute fiber (jute fiber addition ratio: 0.075 vol.%; length: 12 mm; PP fiber addition ratio: 0.075 vol.%; length: 12 mm) were experimentally investigated.

Findings

The work was intended to clarify the influence of elevated temperatures ranging from 20°C to 500°C on the material mechanical properties of HPC at 80 MPa. HSC with jute fiber showed a compressive strength loss of about 40 per cent at 100°C before recovering to full strength between 200°C and 300°C.

Originality/value

The elastic modulus of high-strength concrete decreased by 10-40 per cent between 100°C and 300°C. At 500°C, the elastic modulus was only 30 per cent of the room temperature value. The thermal expansion strain of all specimens was 0.006 at 500°C.

Details

Journal of Structural Fire Engineering, vol. 7 no. 3
Type: Research Article
ISSN: 2040-2317

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Available. Open Access. Open Access
Article
Publication date: 4 December 2017

Se-Chang Oh, Min-Soo Kim, Yoon Park, Gyu-Tak Roh and Chin-Woo Lee

The centralized processes of today’s power trading systems are complex and pose a risk of price tampering and hacking. The decentralized and unmodifiable nature of the blockchain…

11691

Abstract

Purpose

The centralized processes of today’s power trading systems are complex and pose a risk of price tampering and hacking. The decentralized and unmodifiable nature of the blockchain technology that has recently been highlighted offers the potential to improve this power trading process. The purpose of this study is to implement a system to apply the blockchain technology to the problem of power trading.

Design/methodology/approach

The authors modeled the power trading problem as the interaction between admin, producer and consumer nodes. And a power trading scenario has been created for this model using a blockchain platform called Multichain which is both fast and highly scalable. To verify this scenario, they implemented a trading system using Savoir, a Python-based JsonRPC module.

Findings

Experimental results show that all processes, such as blockchain creation, node connectivity, asset issuance and exchange transactions have been correctly handled according to the scenario.

Originality/value

In this study, the authors have proposed and implemented a power trading method that determines price according to the pure market principle and cannot be manipulated or hacked. It is based on the nature of blockchain technology that is decentralized and cannot be tampered.

Details

Asia Pacific Journal of Innovation and Entrepreneurship, vol. 11 no. 3
Type: Research Article
ISSN: 2071-1395

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Article
Publication date: 5 June 2017

Sihyun Kim and Bong Gyu Chiang

With increasing attention to sustainability in port operations, the purpose of this paper is to analyze the role of sustainability practice (SP) as a moderator on the…

729

Abstract

Purpose

With increasing attention to sustainability in port operations, the purpose of this paper is to analyze the role of sustainability practice (SP) as a moderator on the relationships between competitiveness and performance in port operations.

Design/methodology/approach

To explore the specific route of SPs in managing competitiveness and performance, this study adopted the hierarchical moderated regression analysis. Additionally, to analyze the difference in the level of implementation of SP, alternative subgroup analysis was conducted via independent sample t-tests in SPSS 21.

Findings

Research results have shown the role of SPs in achieving outstanding port activities, which significantly moderates the relationship between competitiveness, particularly for operational efficiency and service quality, and performance.

Research limitations/implications

As this study is based on cross-sectional data, it does not tap any temporal attitude change, which would require a longitudinal approach. The authors contribute to filling a void between what is achievable and how sustainable practice contributes to managing competitiveness and performance, based on commercial port operations.

Practical implications

Results provide useful insights to establish the strategies to develop sustainable port operations and a strategic agenda to assist ports to incorporate SP.

Originality/value

Drawing on multiple theories, this study advances the role of SP by shedding new light on how it improves operational sustainability through strengthening the relationships between competitiveness and performance.

Details

Journal of Korea Trade, vol. 21 no. 2
Type: Research Article
ISSN: 1229-828X

Keywords

Available. Open Access. Open Access
Article
Publication date: 9 June 2021

Jin Gi Kim, Hyun-Tak Lee and Bong-Gyu Jang

This paper examines whether the successful bid rate of the OnBid public auction, published by Korea Asset Management Corporation, can identify and forecast the Korea…

571

Abstract

Purpose

This paper examines whether the successful bid rate of the OnBid public auction, published by Korea Asset Management Corporation, can identify and forecast the Korea business-cycle expansion and contraction regimes characterized by the OECD reference turning points. We use logistic regression and support vector machine in performing the OECD regime classification and predicting three-month-ahead regime. We find that the OnBid auction rate conveys important information for detecting the coincident and future regimes because this information might be closely related to deleveraging regarding default on debt obligations. This finding suggests that corporate managers and investors could use the auction information to gauge the regime position in their decision-making. This research has an academic significance that reveals the relationship between the auction market and the business-cycle regimes.

Details

Journal of Derivatives and Quantitative Studies: 선물연구, vol. 29 no. 2
Type: Research Article
ISSN: 1229-988X

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Article
Publication date: 10 July 2017

Eui-Bang Lee, Sang-Gun Lee and Chang-Gyu Yang

The purpose of this paper is to examine the purchase intention in the case of smartphone advertising, which is unlike any other advertising media.

19710

Abstract

Purpose

The purpose of this paper is to examine the purchase intention in the case of smartphone advertising, which is unlike any other advertising media.

Design/methodology/approach

This study examines the characteristics of recent mobile advertisements such as brand attitude and context awareness value, which have not been considered in studies on non-mobile advertisements, to address purchase intention through smartphone advertisements using structural equation modeling.

Findings

The results are as follows. Together with entertainment, information, irritation, and personalization in non-mobile advertisements, timing and location in mobile advertisements are the main factors for establishing consumers’ purchase intention. Further, although mobile advertisements’ context awareness value strongly impacts consumers’ advertising attitude and brand attitude, purchase intention receives greater impact from brand attitude than from advertising attitude because the products/services lack feel and touch.

Originality/value

These results imply that contextual advertising and new technology enabling feel and touch for products/services can maximize the effect of mobile advertisements.

Details

Industrial Management & Data Systems, vol. 117 no. 6
Type: Research Article
ISSN: 0263-5577

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Book part
Publication date: 22 December 2005

Young-Myon Lee and Michael Byungnam Lee

While the origin of Korean Industrial Relations goes back 150 years when the country opened its seaports to foreign countries, it didn’t emerge as a field of study until 1950s…

Abstract

While the origin of Korean Industrial Relations goes back 150 years when the country opened its seaports to foreign countries, it didn’t emerge as a field of study until 1950s when academics began to write books and papers on the Korean labor movement, labor laws, and labor economics. In this paper, we sketch this history and describe important events and people that contributed to the development of industrial relations in Korea. Korean industrial relations in the early 20th century were significantly distorted by the 35-year-Japanese colonial rule (1910–1945). After regaining its independence, the U.S. backed, growth-oriented, military-based, authoritarian Korean government followed suit and consistently suppressed organized labor until 1987. Finally, the 1987 Great Labor Offensive allowed the labor movement to flourish in a democratized society. Three groups were especially influential in the field of industrial relations in the early 1960s: labor activists, religious leaders, and university faculty. Since then, numerous scholars have published books and papers on Korean industrial relations, whose perspectives, goals, and processes are still being debated and argued. The Korean Industrial Relations Association (KIRA) was formed on March 25, 1990 and many other academic and practitioner associations have also come into being since then. The future of industrial relations as a field of study in Korea does not seem bright, however. Issues regarding organized labor are losing attention because of a steadily shrinking unionization rate, changing societal attitude toward labor unions, and the enactment of new and improved laws and regulations regarding employment relationships more broadly. Thus, we suggest that emerging issues such as contingent workers, works councils and tripartite partnership, conflict management, and human rights will be addressed by the field of industrial relations in Korea only if this field breaks with its traditional focus on union and union–management relations.

Details

Advances in Industrial & Labor Relations
Type: Book
ISBN: 978-0-76231-265-8

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