• Journal of Digital Convergence
• /
• v.11 no.11
• /
• pp.265-278
• /
• 2013

This study is about how does collaboration activities of large company's Supplier Relationship(SR) effect on manufacturing capability and performance of a SMEs. In this research, there are many ways to analyze data. The methods used in the study are hypothesis testing and empirical testing based on SPSS 21.0 and AMOS21.0, factorial analysis for validity and reliability of questionnaire item, construct validity and variance extracted as a research model, and subcontract-tiers as a moderating variable. As a result, the effect of the collaboration activities of large business did not have the significant effect on supplier's manufacturing capability. It showed different result by subcontract-tiers In first-tier cooperative, collaboration activities of large business had significant effect on manufacturing capability, but it did not have the significant effect on performance. In second/third-tier cooperative, manufacturing capability and performance are significantly affected by manufacturing practices. In conclusion, this study will suggest the direction how to achieve an accompanied growth between large enterprises and SMEs.

• Asia-Pacific Journal of Business
• /
• v.14 no.2
• /
• pp.1-15
• /
• 2023

Purpose - This study investigates whether the inventory levels of Korean manufacturing firms increased or decreased from 2000 to 2019. We also explore the relationship between inventory levels and firm performance. Design/methodology/approach - We use panel data on KOSPI-listed firms in the manufacturing industry. We measure days in inventory as a proxy for inventory levels, and firm performance is measured by return on assets, return on sales, and EBITDA ratio. The panel data regression method is employed in our analysis. Findings - We find that days in inventory of Korean manufacturing firms significantly increased from 2000 to 2019, especially for raw materials and finished goods inventory. In addition, while days in inventory of large- and medium-sized firms were less than those of small-sized firms, the change in days in inventory of large- and medium-sized firms was positively significant over time. Moreover, the increase in days in inventory was more prevalent among industries related to foods, clothes, chemicals, and transportation. Finally, we show that the days in inventory are negatively related to firm performance. Research implications or Originality - While the Korean manufacturing industry has enormously grown over the last 20 years and managing inventory is critical in the manufacturing industry, our findings counter-intuitively show that the days in inventory of the Korean manufacturing industry had been gradually increased. We speculate that the increase in days in inventory is due to the Korean manufacturing firms' heavy reliance on global supply chains.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
• /
• v.14 no.2
• /
• pp.168-177
• /
• 2003

The performance sensitivity analysis due to manufacturing/alignment errors is performed for the Ku-band offset parabola antenna of the domestic Communications and Broadcasting Satellite. The performance variations due to reflector random surface error, which inevitably happens during reflector manufacturing, are statistically analyzed using RMS error and correlation interval. The impact on the antenna performance of the fred hem's position and angular errors is investigated, and the sensitive directions are identified. When the target tolerances are applied, the performance degradations are found to be within the loss budget or corresponding performance margins.

• Journal of the Korean Operations Research and Management Science Society
• /
• v.30 no.4
• /
• pp.15-25
• /
• 2005

As implied by the terms of IT productivity Paradox, measuring the Information technology contribution to economic performance has been one of the challenging issues to both policy makers and business professionals. As such, diverse attempts with sophisticate analyses have been reported in the literature to analyze the effect of IT contributions. In this paper, we follow Growth Accounting Method to measure the IT contribution effect to manufacturing firm's economic performance in Korea. Various regression methods and statistical analyses are applied with fourteen years of industry Panel data. Using the Cobb-Douglas function, time lag analysis is made to understand IT effect to economic growth. Instead of capturing data from individual firm, industry level data from the National Statistics Bureau is used for IT capital, non-IT capital, and so on. Statistical analysis following the panel unit test and Panel co-integration test was performed to reveal the exact effect of IT contribution to economic performance. Empirical testing results for non-stationary nature of IT investment effect are reported as well as IT contribution to manufacturing industry's economic performance.

• 한국정보디스플레이학회:학술대회논문집
• /
• 2007.08b
• /
• pp.1699-1702
• /
• 2007

We will discuss encapsulation of OLEDs on both flexible and rigid glass substrates. Accelerated testing at 6CC/90RH and 85C/85RH is compared and acceleration factors for OLED and Calcium test samples are discussed.We have tested the stability and performance of our barrier coating to much higher temperatures: up to 140 C. Water Vapor Transmission rates at temperatures from 60 to 140 C are presented. Rates and methods for low cost manufacturing on a large scale are analysed

• Journal of Korean Society of Industrial and Systems Engineering
• /
• v.12 no.20
• /
• pp.71-76
• /
• 1989

In this paper, GERT network in modeled to improve the network of manufacturing process with feedback loop. A lot of Information on the GERT network can be derived from the equivalent W-function and MGF(moment generating function) using Mason's rule. These equations are used in calculating the variations of the performance measure and in improving the system performance. System improvement in manufacturing process is achieved by increasing the equivalent probabilities of each branches and by decreasing the expected equivalent time.

• 한국정보디스플레이학회:학술대회논문집
• /
• 2007.08a
• /
• pp.327-331
• /
• 2007

The AMOLED industry must compete with AMLCD displays by standardizing around scaleable technology platforms that deliver display-performance and manufacturing-cost goals. Kodak White OLED device rchitectures have the potential to achieve the best performance and cost tradeoffs. Here we describe the building blocks necessary for delivering effective AMOLED mass production technologies.

• Journal of the Korea Safety Management & Science
• /
• v.13 no.3
• /
• pp.133-143
• /
• 2011

It seems required to determine what might affect the technological innovation activities of manufacturing companies and what kind of role they could play for them to carry out technological innovation activities in an effective way. The objective of the present study is thus to conduct a depth empirical analysis of the structural relations among business environment, technological innovation activities and performance of manufacturing companies. From the analysis, following outcomes could be drawn: First, with regard to the relationship between business environment and technological innovation activities of manufacturing companies, it has become clear that the external environment is a factor that can influence technological innovation activities such as management of technical property, technological innovation system as well as technical network, while it exercises no impact upon adaptation of manufacturers to new technologies. The internal environment, on the other hand, turns out to have influence on such overall factors of technological innovation activities as management of technical property, technological innovation system, adaptation to new technologies and technical network; and Second, as for the relationship between technological innovation activities and their performance, it has been obvious that management of technical property and technological innovation system, both factors of technological innovation activities, affect the performance of product development and financial achievements of manufacturing companies. Their adaptation to new technologies will also affect their performance of product development as well as financial achievements. These findings suggest that it is important for manufacturing companies to set up an operating system that may be able to upgrade the practical applicability of their technological development activities in an attempt to promote performance of their technological innovation activities.

• Journal of the Korea Safety Management & Science
• /
• v.6 no.1
• /
• pp.229-249
• /
• 2004

Quality management has been recognized as an important means to secure business competitiveness for management environment changes and competitiveness reinforcement. An effort of an ISO 9001 certification has thought that it is the best way to practice quality management. This paper checks a quality management situation of manufacturing companies that acquired ISO 9001 certification. Then, this paper investigates whether quality management is actual1y contributing to production performance and proposes proper alternatives for an improvement of production performance.

• Journal of Industrial Convergence
• /
• v.1 no.2
• /
• pp.81-94
• /
• 2003

This study is an empirical analysis of causal relationship that is the effect of strategic importance and orientation of electronic commerce system on performance. Among four industries(financial, retailing wholesaling, service, and manufacturing), financial industry has high level of strategic importance and orientation, that of manufacturing industry is low level. strategic importance has highest effects on strategic orientation. strategic importance and orientation has a positive effects on internal, financial performance significantly. effects of strategic orientation on performance is much than that of strategic importance.