• Journal of Environmental Impact Assessment
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• v.15 no.2
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• pp.93-100
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• 2006

In general, the verification to prediction formula in a national road and the main street of a town has been used recklessly in Korea. Therefore we investigated the validity of an existing prediction formula (NIER(87, 99), TR-Noise, KLC(2002)) with correction relationship which was based on both the prediction formular from apartment complex in the field and height 1.5m from the surface level. On the results of measuring the noise level form an isolated distance, the noise level showed that it was 4.5~5.5dB(A) by reason of becoming 2 folder far from a source. From the distribution of noise level measured by the apartment floors, the measurement point (1st floor) was 58.7~71.4dB(A) at its lowest level and the middle floors (3, 5, 7 and 10) were the highest distribution of noise level. From the analysis results on the application validity to an existing prediction formular (NIER(87, 99), TR-Noise, KLC(2002)) in the height 1.5m, the correction coefficients were 0.95~0.96 and the measured values were reasonably close to the predicted values, indicating the validity and adequacy of the predicted models. KLC(2002) model was found accurate within 3dB(A) with 36 data out of the total 42 data, showing the most accuracy among the predict models. However, the developed models have to improve the accuracy with a various of factors.

• The Korean Journal of Community Living Science
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• v.20 no.2
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• pp.181-191
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• 2009

This study was conducted to examine the distribution status, the physicochemical composition, and the physiological activity of Spergularia marina grown in the western region in Jeon-Ra-Nam-Do, looking for its potential as a local specialty goods. The amount sold of Spergularia marina to different areas from a rural market place was examined during April, 2008. The proportions of Spergularia marina are as follows; Yeongam(30.5%), Muan(24.3%), Naju(20.3%), Hampyeong(18.0%), and Haenam(7.0%), which were shown higher than those of Pimpinella brachycarpa. Total vitamin C and total chlorophyll contents in Spergularia marina were 68.61mg/100g DW and 58.11mg/g DW, respectively. Total amino acid contents were 331.94mg/100g DW and 20 kinds of amino acids were separated and classified. The contents of inorganic matters in Spergularia marina were as follows; Na(64.23mg/L), Mg(15.88mg/L) K(9.99mg/L), Ca(3.83mg/L). The total phenol and the total flavonoid contents of methanol extracts from Spergularia marina were 41.7mg/L and 18.9mg/L, respectively, with an extracting concentration of 2,000mg/L. The nitrite scavenging activity was highest (83.4%) in hot water extract. These results may be useful as basic data for using Spergularia marina as a local specialty goods.

• The Journal of Industrial Distribution & Business
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• v.12 no.2
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• pp.29-40
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• 2021

Purpose: In this study, with the transaction amount of foreign direct Purchase and foreign direct sales increasing, South Korea is in a situation where foreign direct sales are focused on China. We looked at the impact of consumer innovation and site characteristics on repurchase ability among the characteristics of overseas direct purchase consumers as a way to make direct overseas sales to various overseas countries. Research design, data and methodology: Consumer innovativeness consists of four variables: functional, hedonistic, social, and cognitive, and the site characteristics consisted of four variables: product price, product assortment, convenience, and service. The study was conducted on consumers with foreign direct purchase experience, and was finally used in 252 additional analyses. Results: The main findings of this study were first, that the impact on the degree of re-purchase among consumer innovativeness of foreign direct purchase consumers had a significant impact in the order of cognitive innovativeness, hedonistic innovativeness, and functional innovativeness. Social innovativeness did not affect the degree of re-purchase. Second, site characteristics have been found to have a significant impact on the degree of re-purchase in order of product assortment, commodity price, and service. Convenience did not affect the degree of re-purchase. Conclusions Taken together these results can be called the biggest characteristic of the cognitive innovativeness of the consumer's inclination to use the overseas direct purchase, the price or quick response of the goods sold on the site is a factor that affects the re-purchase, above all it is important to have a variety of products. We will present this element as a way to make direct sales abroad to various countries. In addition, foreign direct purchase is a lot of transactions in China, the United States, EU, but the share of China is high in foreign direct sales, and the U.S. and EU have a very low performance, it is important to consider the reasons why they prefer Korean products in China to study the social and cultural characteristics of U.S. and European consumers in the future, and to support and active marketing that companies and sellers can increase sales.

• Asia pacific journal of information systems
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• v.33 no.2
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• pp.261-281
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• 2023

The proliferation of online customer reviews has completely changed how consumers purchase. Consumers now heavily depend on authentic experiences shared by previous customers. However, deceptive reviews that aim to manipulate customer decision-making to promote or defame a product or service pose a risk to businesses and buyers. The studies investigating consumer perception of deceptive reviews found that one of the important cues is based on review content. This study aims to investigate the impact of the information amount of review on the review truthfulness. This study adopted the Information Manipulation Theory (IMT) as an overarching theory, which asserts that the violations of one or more of the Gricean maxim are deceptive behaviors. It is regarded as a quantity violation if the required information amount is not delivered or more information is delivered; that is an attempt at deception. A topic modeling algorithm is implemented to reveal the distribution of each topic embedded in a text. This study measures information amount as topic diversity based on the results of topic modeling, and topic diversity shows how heterogeneous a text review is. Two datasets of restaurant reviews on Yelp.com, which have Filtered (deceptive) and Unfiltered (genuine) reviews, were used to test the hypotheses. Reviews that contain more diverse topics tend to be truthful. However, excessive topic diversity produces an inverted U-shaped relationship with truthfulness. Moreover, we find an interaction effect between topic diversity and reviews' ratings. This result suggests that the impact of topic diversity is strengthened when deceptive reviews have lower ratings. This study contributes to the existing literature on IMT by building the connection between topic diversity in a review and its truthfulness. In addition, the empirical results show that topic diversity is a reliable measure for gauging information amount of reviews.

• The Journal of Asian Finance, Economics and Business
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• v.7 no.6
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• pp.127-131
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• 2020

In today's financial industry, Fintech (financial technology) has showed its role of an innovation-driving area, which can bring outstanding changes to the traditional financial market. This article will briefly introduce Fintech as well as its development in Vietnam. Besides, the research also provided a survey on experts' opinions on the challenges to the promotion of Fintech application for the modernization of the banking-finance system in Vietnam. The survey results of 40 experts in banking with knowledge of Fintech identify five challenges faced by Fintech companies in Vietnam: (1) legal corridor; (2) infrastructure; (3) Fintech companies; (4) customers; and (5) human resources. From these five challenges/barriers, there are 14 detailed aspects. The results of the expert survey using descriptive statistics show that all five factors are assessed to be low and need to be better addressed in the future. The authors suggest several solutions for further development of Fintech to support the modernization of the banking-finance system in Vietnam: (1) quickly complete the regulatory framework; (2) introduce policies on tax exemption; (3) promote research and application of the benefits of block-chain technology; (4) utilize the abilities of the human resources; and (5) actively promote and popularize knowledge about Fintech.

• Asian Journal of Business Environment
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• v.9 no.2
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• pp.17-25
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• 2019

Purpose - This study uses the 'Galapagos Effect' theory proposed by Japanese researchers to investigate if there is a basis for applying the theory to South Korea, specifically in the High-Tech Service area. Research Design, Data, and Methodology - The underlying characteristics of Japanese business environment that led to the Galapagos Effect are identified, and then Korea is investigated to see if these characteristics are also evident. The case studies of three South Korean companies are explored to see if they can be considered as examples of the Galapagos Effect Results - The findings illustrate that some evidence for the existence of the Galapagos Effect does exist in Korean companies, but more research is required to systemize the phenomenon. Conclusions - The study concludes that proactive measures at a Government and business level should be implemented to mitigate the effects of the Galapagos Effect in Korea. The existence of evidence suggests that there may be grounds for more comprehensive studies in order to try and make a generalization. In addition, more study needs to be done to establish exactly which kinds of high-tech service companies are most likely to hit barriers due to the Galapagos Effect as it is not clear from the existing evidence.

• Journal of Korean Institute of Industrial Engineers
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• v.37 no.2
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• pp.124-131
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• 2011

In this research report, we propose a heuristic algorithm with some primal recovery strategies for capacitated facility location problems (CFLP), which is a well-known combinatorial optimization problem with applications in distribution, transportation and production planning. Many algorithms employ the branch-and-bound technique in order to solve the CFLP. There are also some different approaches which can recover primal solutions while exploiting the primal and dual structure simultaneously. One of them is a MVCD (Mean Value Cross Decomposition) ensuring convergence without solving a master problem. The MVCD was designed to handle LP-problems, but it was applied in mixed integer problems. However the MVCD has been applied to only uncapacitated facility location problems (UFLP), because it was very difficult to obtain "Integrality" property of Lagrangian dual subproblems sustaining the feasibility to primal problems. We present some heuristic strategies to recover primal feasible integer solutions, handling the accumulated primal solutions of the dual subproblem, which are used as input to the primal subproblem in the mean value cross decomposition technique, without requiring solutions to a master problem. Computational results for a set of various problem instances are reported.

• The Journal of Information Technology
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• v.2 no.2
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• pp.23-34
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• 1999

The computer industry has come to the generation of personal computer. The organization of the existing industry has the distinct boundary among companies in vertically integrated companies, produce whole assembled system, and compete in the part of hardware, operating system, and its related software based on theirselves design. Then according to keep the distinct monopolized architecture of industry, the enterprises only centralized on developing the monopolistic market and sharing the static market rather than competition and compatibility with other system. The horizontal distribution in small part industry is occurring, by the times of personal computer, and the companies of personal computer have coming into free competition with parts standardization and the open architecture of system. This paper suggests a reasonable model of industry under horizontal structure with analyzing the above phenomenon.

• Agribusiness and Information Management
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• v.11 no.2
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• pp.5-15
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• 2019

The world of smart agribusiness is still far from being fully and effectively applied by the Italian entrepreneurial fabric. In part, this is due to the fact that its potential and important connections with the technological world of reference are not fully known. The imperative is therefore: to learn how to manage all the processes that characterize the agricultural chain in a synergistic way, from production to the sale of the product to the final consumer. It is therefore essential to know every minimum aspect of the supply chain considering the current strengths on which to leverage but especially the weaknesses on which to intervene thanks to the use of technology available on the market. Today, the supply chain is still considered as a set of phases, one consecutive to the other, as if they were detached from each other. However, in order to operate efficiently, each step should be interconnected: from the farmer's decision to produce an agricultural good to the choice of production factors, from the implementation of harvesting and post-harvest operations to processing, from the selection of goods suitable for sale to the logic of distribution on the target territory. This work investigates the potential strategy using digital technologies in order to make dynamic the agribusiness supply chain, especially because in Italy the agri-food is one of the most important economic sectors but it is far from the most innovative trends available on the market.

• Journal of Korea Society of Digital Industry and Information Management
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• v.7 no.2
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• pp.77-90
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• 2011

In these days, almost all existing contents have been digitalized because of development of IT(Information Technology) and the emergence of various distribution channels. Those digitalized Contents has increased so rapidly, particularly Video contents, and brought new market and open new business. Now it became a lucrative industry. Therefore it's necessary to study Digital contents. This study is to find out the factors which have an influence on Intention to Use and Use charged the digital contents. To carry out this study, TAM(Technology Acceptance Model), IDT(Innovation Diffusion Theory) and Use& Gratifications Theory were applied. An empirical method has been adopted, using Likert-style 7 point measurement scale, data were collected by e-mail and direct survey in Daejeon, Korea. On the collected data, after the validity test and reliability test has been taken by factor analysis and using Cronbach's alpha respectively, following 5 variables were extracted such as Perceived Usefulness, Perceived Easy Of Use, Compatibility, Intention to Use and Use.