• Journal of Navigation and Port Research
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• v.35 no.2
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• pp.173-178
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• 2011

This study determined the ship replacement life expectancy from an economic perspective. There are many ambiguities in the cost for calculation of economic lifespan, and these were expressed as fuzzy numbers. Also, a fuzzy cost model using fuzzy numbers was developed and suggested as a more practical analysis method than the existing cost model. And the suggested fuzzy model was used to determine the economic lifespan for various types of container ships. As the result, Without fuzziness, the economic lifespan of 5000 TEU Ships was found to be 19 years. it was found that the greater the container ship, the greater the economic lifespan was.

• Korean Journal of Rural Living Science
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• v.6 no.1
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• pp.65-72
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• 1995

This article explores : 1) There were significant differences in the behavioral aggressiveness and the recognition about economical and psychological benefits related to complaining behavior. 2) The significant differences were found in the trust, distrust and behavioral aggressiveness related to types of consumer attitudes. 3) The satisfaction with the purchasing behavior was significantly explained by the distrusted relationship, the recognition of economic and psychological benefits, private complaining behavior types and aggressive types of consumer attitudes.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.9
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• pp.454-464
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• 2018

The OECD estimates that a high concentration of intangible capital is in the richest countries of the world. Studies show that intangibles have a positive relation with economic growth. However, different types of intangibles can have different impacts on economic performance. Therefore, this paper attempts to distinguish the differences within the intangibles in influencing economic growth by analyzing three different characteristics of the intangibles. Three main types of intangibles (computerized information, innovative property and economic competencies) are analyzed based on the degree of tacitness, the process of creation and diffusion, and the level of embedded value-added. This research uses Polanyi's classification of tacitness of knowledge, the Nonaka-Takeuchi Model and the "smiling curve" to find that not only investing more in intangible capital but also developing more "tacit" type of intangibles are important for economic growth.

• East Asian Economic Review
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• v.25 no.1
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• pp.33-71
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• 2021

Many different approaches and databases have been developed for the evaluation of non-tariff measures (NTMs) and free trade agreements (FTAs). This paper is devoted to the EU-South Korea agreement, which is the first 'second-generation' FTA of the EU, addressing a wide array of non-tariff policies. We review the evolution of NTM types applicable to the EU-South Korea trade relationship and the role of NTMs in ex-ante and ex-post analyses of the agreement. Subsequently a structural gravity model is employed to assess the value added of information on different aspects of FTAs and types of NTMs by evaluating their ability to predict the trade effects of the EU-South Korea FTA. Our results show that, when accounting for information on the components common in modern deep trade agreements, no additional trade effect is attributable to the EU-South Korea FTA. The evolution of NTMs differs considerably across indicators used, but trade predictions are hardly affected. Most specifications point towards a negative effect of bilateral differences in the number of technical barriers to trade (TBT) applied and sanitary and phytosanitary measures (SPS) against which trading partners issued complaints at the WTO.

• International Journal of Computer Science & Network Security
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• v.21 no.11
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• pp.135-142
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• 2021

The article reveals the essence of cybercrime, approaches to understanding this concept, classification of cybercrime, and other illegal acts in this area. The concept of cybercrime has multi-discourse nature and a certain legal uncertainty. Cybercrimes, their forms and types are analyzed in the economic context. The research vocabulary of the economic industry is defined. The scope and content of concepts denoted by the terms of the sphere covered by cybercrime are studied, and its types and forms are analyzed. The article studies problems, achievements, and prospects of resisting and combating cybercrime during the development of the civil information society and Ukraine's entry into the global information space. The study focuses on the economic motivation of most cybercrimes since some material benefit from the fact of cyber offenses is assumed directly or indirectly.

• Korean Journal of Human Ecology
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• v.9 no.2
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• pp.33-42
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• 2006

The purpose of this study was to identify the relationship between lifestyles and clothing shopping orientation. A questionnaire was developed to measure the lifestyle and shopping orientation of Chinese female college students. The questionnaire was distributed and collected from 217 college female students in China. The data was analyzed by mean, standard deviation, factor analysis, reliability test, MANOVA and ANOVA by SPSS package. The lifestyles of the respondents were classified into four types such as Open-mindedness, Accomplishment, Sociability, and Activities. And shopping orientation was classified into five types such as Recreational shopping, Speediness, Economic shopping, Shop and brand royalty, and Self-confidence. The result of this study were as follows; Consumers of open-minded lifestyle tended to economic and self-confident shopping. The higher accomplishment was, the higher speediness and economic shopping were. Consumers of sociable lifestyle tended to recreational, speediness, and self-confidence. The higher activities was, the higher economic shopping was. The shop and brand royalty was not shown to have the significant differences according to all of lifestyle groups. It is the factor that lifestyle were important in the clothing market segmentation of Chinese female college students

• Proceedings of the Korea Contents Association Conference
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• 2008.05a
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• pp.324-327
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• 2008

This research seeks to investigate the economic feasibility of a small size aircraft development and BASA certification enterprise. To achieve the objective, this research investigates cost which requires for proceeding a small size aircraft development and BASA certification enterprise. This research also investigates the economic effects and economic benefits acquired from exporting civil aircraft. Costs and benefits are assumed using cash flow by types of airplanes. On the basis of the cash flow, this research calculates B/C ratio, NPV, IRR for investigating the economic feasibility. The result shows that there are economic feasibility for both very light jet and piston aircraft. Between these two aircraft types, more economic feasibility exist for very light jet than piston aircraft.

• Korean Journal of Organic Agriculture
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• v.13 no.2
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• pp.129-143
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• 2005

Attempting to make an economic valuation of semi-liquid manure raises various complex questions. These are the valuation under different farming conditions, cost-benefit analysis in connection with the investment requirements of different semi-liquid manure systems, different storage capacities, transportation distances and treatment procedures. In the following, there questions will be discussed : 1. What value do the different types of semi-liquid manure have under different farming conditions? 2. Which storage capacities are economically justified? 3. Under which conditions is the transport of semi-liquid manure over long distances profitable?

• Nuclear Engineering and Technology
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• v.54 no.5
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• pp.1874-1889
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• 2022

In this study, we evaluate the thermal-hydraulic performance and economics of Printed Circuit Heat Exchanger (PCHE) according to the channel types and associated shape variables for the design of recuperators with Sodium-cooled Fast Reactors (SFRs). To perform the evaluations with variables such as the Reynolds number, channel types, tube diameter, and shape variables, a code for the heat exchanger is developed and verified through a comparison with experimental results. Based on the code, the volume and pressure drop are calculated, and an economic assessment is conducted. The zigzag type, which has bending angle of 80° and a tube diameter of 1.9 mm, is the most economical channel type in a SFR using CO₂ as the working fluid. For a SFR using N₂, we recommend the airfoil type with vertical and horizontal numbers of 1.6 and 1.1, respectively. The airfoil type is superior when the mass flow rate is large because the operating cost changes significantly. When the mass flow rate is small, volume is a more important design parameter, therefore, the zigzag type is suitable. In addition, we conduct a sensitivity analysis based on the production cost of the PCHE to identify changes in optimal channel types.

• The Transactions of The Korean Institute of Electrical Engineers
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• v.67 no.3
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• pp.343-351
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• 2018

Renewable energy sources has drawn considerable attention as clean energy sources because of changing public attitudes regarding greenhouse gas and fine dust. Recently, in this respect, the government provides the drivers of electric vehicles with various benefits such as tax reduction, financial incentives and free parking from the public to the private sector. Plug-in electric vehicles are the most common in the private sector. Otherwise, different types of battery-based buses in the public sector are being developed, and there are three main types of charging: plug-in, battery swapping and wireless. Therefore, economic assessment of charging types in each bus route is required in order to facilitate the use of battery-based buses instead of the existing CNG buses. In this paper, net present value(NPV) and B/C ratio of charging types are evaluated in consideration of the bus schedule, the cost of charging station, and the life cycle of battery, etc. per each bus route. In case study, main bus routes in Daegu City are simulated with the proposed evaluation method to validate the eco-bus project.