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pISSN : 1975-7700 / eISSN : 2734-0570

2020 KCI Impact Factor : 0.42
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2012, Vol.7, No.4

  • 1.

    Study on Analysis of the Dynamic Efficiency and Positioning in the Major Port of Korea·China·Japan·Taiwan

    Lee, Moon Bong | 김삼문 | Hong Han Kuk | 2012, 7(4) | pp.1~11 | number of Cited : 0
    Abstract PDF
    The increase of cargo volumes and vessel demand has led port authorities to improve infrastructure, enlarge area, and construct a hub port in Asia. This study applies the Data Envelopment Analysis(DEA) model to 12 Asia major ports. This study tries to apply the Data Envelopment Analysis(DEA) model to 12 Asia major ports. DEA is a methodology that compares the relative efficiency of each decision making unit(DMU) with similar input and output structure, and is specially very useful when a form of production function of each DMU such as a port is not known. DEA provides the extent of inefficiency of DMUs, which is practically useful information (like the efficiency score and reference sets) required to improve efficiency. This paper aims to analyze and compare the competitiveness of 3 major Korean ports, 3 major Chinese ports, 3 major Japanese ports, and 3 major Taipei using Data Envelopment Analysis(DEA) windows analysis based on 2006-2010 data from Containerization International Yearbooks. Through this study, we will investigate the efficiency of these major East Asian ports and demonstrate the trend of the efficiency.
  • 2.

    Foreign Direct Investment Statistical Data Difference in China

    SANGWOOK KIM | 2012, 7(4) | pp.13~20 | number of Cited : 2
    Abstract PDF
    This paper analyze the differences and problems of FDI statistical data in China. The FDI not only provide the capital, but also play an important role in the quality development. The over-evaluated and under-evaluated FDI statistical data could bring about unfavorable affects to real economy analysis and policy-making process. This paper indicates the statistical data differences and analyzes the causes from sixth aspects. First is the fixing of statistical data boundary. Second is the difference of the actually used FDI and the contracted FDI data. The contracted FDI data indicate the investment intention and potential power. Third is the difference of the green filed investment and the accumulated investment. We could compute the green field investment from the institutional channel, but hardly computing the accumulated investment because of the re-investment. Fourth is the difference of MOC and SAOFE, this is the most serious problem. Fifth is the difference of the central government and the local government. Sixth is the difference of host country data and the investment country data.
  • 3.

    Prediction Performance Improvement of KOSDAQ Business Bankruptcy using SVM Preprocessor

    Kang, BooSik | Junhee CHO | 2012, 7(4) | pp.21~27 | number of Cited : 3
    Abstract PDF
    Business bankruptcy has had a lot of losses to various stakeholders. If we are able to predict bankruptcy or insolvency in advance, we can defend enterprises against bankruptcy or insolvency and minimize the loss. Various types of statistical and data mining models have been proposed for prediction of business bankruptcy. One of the main issues of the bankruptcy prediction models is to increase predictability. This research deals with logit, decision tree, neural networks, and SVM models those are mainly used to predict corporate bankruptcy. Sample companies were consisted of 49 bankrupt firms and 49 normal firms in KOSDAQ. Nine financial variables were selected by statistical test and five years of data were collected. In case of using SVM for preprocessing data, experimental results showed that classification models could improve the performance of the bankruptcy prediction.
  • 4.

    A Study on the Way Utilizing SNS to Enhance Business Performance in Corporate

    Go-Whan Jin | Jung, Chul Ho | 2012, 7(4) | pp.29~39 | number of Cited : 1
    Abstract PDF
    This study investigates how corporations utilize SNS (Social Network Services) as one of the business marketing strategies. It is conducted by analyzing case studies on the utilization of representative SNS such as Twitter and Facebook. We examines what particular features the representative SNS have through researching examples of foreign and domestic corporations and how those corporations have utilized those SNS features. And we explore how the particular SNS features can be applied in business marketing. Specifically, corporations need to develop five strategies in order to successfully carry out SNS; an understanding of characteristics in SNS, a risk management strategy through mutual communication, a strategy applied to data filtering, a consideration of difference in users' experiences and expectations with mutual understanding, and finally, the establishment of SNS policy and constant education and training of members. The findings have significant implications for SNS service providers and academic researchers.
  • 5.

    A Study on the Impacts of Mobile Entertainment Content on the perceived Usefulness and Leisure Satisfaction

    Seung-Hoon Yoo | 최문수 | 민광희 | 2012, 7(4) | pp.41~53 | number of Cited : 1
    Abstract PDF
    Due to the activated smartphone market from both local and overseas, the age of digital mobile life is coming. In particular, the development of mobile content occupies a large part of the growth. Up to recently, while mobile content-related researches have only focused on the use of mobile contents and the reason why people strongly demand them, the advanced study, it is nowadays necessary to study about the characteristics influencing on the leisure satisfaction because of the current situation that utilization of mobile contents would be the center of people's leisure activity. Therefore, this study shows how does business contribute to improve consumer's value, especially, the leisure satisfaction through the research for the attribute of mobile entertainment contents which have positive relationship on the view of the social contribution of the business. And, this study determines whether do mobile contents affect the user's perceived usefulness and the leisure satisfaction by classification of accessibility, timeliness, diversity, and entertainment factors based on the previous studies.
  • 6.

    A Study on Networks of Digestive System in Human

    Lee, Junwon | 2012, 7(4) | pp.55~62 | number of Cited : 0
    Abstract PDF
    The digestive system is made up of the digestive tract are the mouth, stomach, and intestine and absorb food with juice of digestive tract. An enzyme, hydrochloric acid and pepsin in the juice of the stomach starts the digestion of swallowed protein. Digestion of carbohydrates, proteins, and fats continues in the small intestine. Starch and glycogen are broken down into maltose by small intestine enzymes and large fat are broken down into fatty acid and cholesterol by bile acid secreted in the liver. Pancreatic juice and proteases enzymes secreted by the pancreas that continue the breakdown of protein into small peptide fragments and amino acids. In this research suggests that network of established digestive system in vitro may have therapeutic potential for use in the treatment of new food and medical supplies.
  • 7.

    Symmetric Confidence Prioritized Location Estimation Algorithm Based on RSSI

    이운용 | Hwang Kwang-il | 2012, 7(4) | pp.63~74 | number of Cited : 0
    Abstract PDF
    In this paper a novel location algorithm and ad hoc-based location system are proposed and also feasibility and performance are evaluated through the test-bed implementation. In particular, the environment we consider has more severe conditions than general environments that has been considered in other location systems. The developed location system facilitates installation and maintenance by utilizing a scalable multi-hop network infrastructure, guarantees freshness of location data by performing the proposed ranging algorithm, and has the functionality capable of analyzing location messages of a mobile node in real-time. Furthermore, we developed a location module based on the RF module operating on 900MHz frequency bands, which supports active and passive location identification modes associated with the developed network infrastructure and application software.
  • 8.

    A Study on Panel Evaluation of Reflective Display

    Kim Young Cho | Sung-Keun Chang | Hong,Soon-Kwan | 2012, 7(4) | pp.75~80 | number of Cited : 0
    Abstract PDF
    In recent years, although many reflective displays are developed and some of them are commercialized, the evaluation method of the emitting display which is generally used as an evaluation standard of a display is still applied. Especially, in case of the reflective display that the electrically opposite particles with contrastive color move by an electric field and form an image, different evaluation standards with the emitting display are necessary. The desirable evaluation standards of a reflective display are response time, memory effect, occupation area showing a rate of contributive particles to a movement, and non-linearity, of which review and evaluation examples are shown with related research in this paper. Although these standards directly effect to electro-optical property, lifetime, reliability of the panel, and fabrication of driving circuits, these evaluation methods based on particle movement are hardly introduced on papers and are aim of our study.
  • 9.

    A Study on Network Data Model based on Architectural Semantic Web Object

    김진홍 | 김현호 | 2012, 7(4) | pp.81~88 | number of Cited : 2
    Abstract PDF
    In general, conceptual object models provide various managements to the complexity of the model corresponding to the object system. For this reason, the concept of object, so called web object, delivers full computational power and network interface. It has thought of object-oriented web in which web applications are designed by object model, such as tools, ORM, UML, Semantic Object Model in some cases. Objects can be a platform to make logical or inductive inferences as well as to give a new way of web computation that is modular, autonomous, and robust with resource level domain names and the object models. As the case stands, Architectural Semantic Web Object Model can capture more meanings of an application environment and provide richer data structuring capabilities. The research area presented in this paper aims the followings. First of all, it assists understanding and documentation of architectural web object model and conceptual data model. Secondly, it presents the description of Engine Communication model for Architectural Semantic Web Object. Accordingly, in this paper, in order to solve the problems that can occur within communication protocol of general web, we provide faster response time with 2-Dimensional structure of spin calculation, which has architectural semantic web model based on XML-RPC protocol environment.
  • 10.

    Study on the Vehicle License Plate Recognition Algorithm In Real-Time Video Using Neural-networks

    Hong Han Kuk | 심재용 | Lee Chang Yeol | 2012, 7(4) | pp.89~99 | number of Cited : 0
    Abstract PDF
    In general, recognition of vehicle license plate is conducted three-step process that are the acquisition of images of vehicle license plate, license plate area detection and character recognition. In this paper, at the acquisition of image steps, the synthesis of multiple input images to a series of steps by using the video input to eliminate the noise generated from the raised contrast. Enter the next character in the video portion is determined by the position of the national standards set forth in the license plate matching the relative position of the letters was to determine the extent location, If you believe that a match exists, the characters that they believe there is at the plate by detecting in the area of the zone plate. Finally, the outline of a letter to the ART2 neural network to learn patterns recognizing the characters of the plates were inside. Experiment in this paper is used videos with stopped vehicles in front of the building's and parked vehicles.
  • 11.

    A Study on Educational Contents Smartphone-Based : An Application based on LBS for Learning the Creative Activities

    Bae Youngkwon | 류기환 | 2012, 7(4) | pp.101~111 | number of Cited : 2
    Abstract PDF
    The recent development in mobile technology has resulted in a variety of mobile devices for the consumer. With these devices, we are able to handle multiple tasks in various environments. In spite of the growing technology and market, positive and practical applications have not been effectively covered in the field of education. In this paper, we have developed a smart phone-based application to operate effectively the creative activities in the field of education by applying the latest smart technology and smart devices. This paper suggests that students take advantage of the creative activities learning by using this app. This research was well appreciated by experts on satisfaction for effective and functional aspects of the application that this study developed. Through this, ultimately, we expect that many smart phone-based educational contents will be continually developed in the field of education. Furthermore, we hope that this research forms a basis for maximizing the effect of education through combining ideally technology and education.