• The Korean Journal of Financial Management
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• v.20 no.1
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• pp.279-304
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• 2003

This study presents some empirical results on variable rate deposit insurance premium in Korea. The study estimates deposit insurance premium for all insured financial institutions in Korea using Ronn and Verma(1986) model which is based on Merton(1977)'s option pricing model. The sample period is 1995-2001 and the study includes trend analysis and cross-sectional analysis for premium estimation. The study also includes the correlation analysis between the estimates and profitability and capitalvariables such as BIS capital ratios, ROE and ROA. The results show that the estimates differ across financial institutions and sample periods. Thus it supports that each deposit premium should reflect its own risks. It also supports the necessity for the system of variable rate deposit insurance premium.

• 전자공학회논문지 IE
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• v.43 no.2
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• pp.22-29
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• 2006

Recently the use of whispered speech has increased due to mobile phone and the necessity of whispered speech recognition is increasing. So various feature vectors, which are mainly used for speech recognition, are applied to their HMMs, normal speech models, whispered speech models, and integrated models with normal speech and whispered speech so as to find out suitable recognition system for whispered speech. The experimental results of recognition test show that the recognition rate of whispered speech applied to normal speech models is too low to be used in practical applications, but separate whispered speech models recognize whispered speech with the highest rates at least 85%. And also integrated models with normal speech and whispered speech score acceptable recognition rate but more study is needed to increase recognition rate. MFCE and PLCC feature vectors score higher recognition rate when applied to separate whispered speech models, but PLCC is the best when a lied to integrated models with normal speech and whispered speech.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.16 no.3 s.94
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• pp.327-334
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• 2005

In this paper, a new PAPR reduction method using correlation of input data sequence is proposed in order to overcome the serious drawbacks, such as necessity of side information transmission or increase of system complexity and calculation which are the basis of previous SLM, PTS and DSI method. A new PAPR reduction method can be classified into Method 1 and Method 2. Method 1 reduces the correlation between the smallest sub-sequence and neighbor smallest sub-sequence. And, to consider the own correlation in detail, the Method 2 reduces two case of correlation between neighbor smallest sub-sequences and neighbor largest sub-sequences. According to simulation result, Method 1 and Method 2 has about 0.5 $\~$ O.8 dB and 1 $\~$ l.2 dB PAPR reduction effect respectively. If more detailed process to reduce the correlation of input data sequence is considered, we can achieve better PAPR reduction performance.

• The Journal of the Korea Contents Association
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• v.11 no.9
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• pp.45-53
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• 2011

According to the necessity of measuring equipments for advanced military systems, real-time characteristics such as time determinism and execution accuracy pursuing low-latencies have become very important. With this reason, the market demand for real-time features in the general purpose operating system such as Linux has been enlarging. To meet these requirements, RTLinux and RTAI has been developed as dual-kernels based on Linux. However, developers should use assembler languages to facilitate real-time in RT-Linux, it is very difficult to deal with it. RTAI has disadvantage that it only provides soft real-time. To solve these problems, RTiK-Linux was developed. In this paper, we propose a new dual-kernel with hard real-time capabilities in Linux, called RTiK-Linux(Real-Time implemented Kernel for Linux). We first introduce related researches and then describe the design methodologies to guarantee the resolution which almost accords with the timer settings. Finally, we present the results of experimental measurements and analyze them in order to validate and evaluate the proposed RTiK-Linux.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.2 no.3
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• pp.103-122
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• 2007

Innovation clusters developed or evolved around a specific region IS the key element of national innovation system and determine national competitiveness. Recognizing the importance of innovation clusters, Korean government has made "Daedeok Special R&D Zone" in 2005. This paper examines the success factors of famous Cluster in advanced countries and China, and proposes the strategy for regional development in Daejeon through boosting Daedeok Innovation Cluster. Although 30.5% of government R&D investment is being concentrated in Daedeok along with 10% of the country's doctorate degree holders, it is lack of increasing revenue by linking corporate R&D with a creative and challenging entrepreneur spirit. The core of the innovation cluster is the integration and mutual networking of the main participants. This paper suggests strategies for developing as a world class innovation cluster, global networking and clustering, venture ecosystem formation, commercialization the knowledge by interacting with market. It also explains the necessity of regional integration for cluster to cluster linkages in the East Asia Region.

• The Korean Journal of Community Living Science
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• v.15 no.2
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• pp.29-42
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• 2004

Women are unlikely to receive an equal education, compared to men, in rural Korean society despite the equality in labor sharing. To address this issue this research aims to (a) analyze the educational needs for farming skills and daily life management in rural communities, and (b) develop a model for educational programs reflecting regional characteristics for the female farmers in order to make them experts in agriculture. A structured questionnaire was administered, using a group interview method, to 366 female farmers from the Jeonnam, Chungbuk, and Gyeonggi provinces with help of agricultural agents. The major components of the questionnaire dealt with individual peculiarities, educational environment, and curriculum and training subjects wanted by the female farmers. Educational program content was classified as daily life management, scientific farming and agricultural management skills to create systematic and effective programs. It was found that the critical factors for developing educational programs for the female farmers are as follows: a. It is necessary to develop a program combining daily life management skills and farming skills to make the female farmers experts in agriculture. b. Statistically significant differences were found in the female farmers' educational program participation and needs based educational level, age, educational expenditure, farm type, farming experience, and farm scale. Therefore, it is necessary to develop a program considering the fore-mentioned socioeconomic status and farming characteristics. c. It is important to establish an educational system for the female farmer to improve their quality of life as a minority group in Korean society. In addition, it is also necessary to develop public relations program to ensure that female farmers recognize the importance and necessity of the education.

• The Korean Journal of Community Living Science
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• v.19 no.4
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• pp.559-568
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• 2008

Even though snacks or meals purchased by teenagers have dramatically increased in Korea, it has not been investigated whether teenagers know and take notice of the nutrition label. Therefore, in this study, we investigated the usefulness and utilization of food and nutrition labels amongst teenagers. Questionnaires were distributed 814 of junior-high school students and were completed by self-administrated questionnaires. Questionnaires included questions regarding general characteristics, perception and utilization of food and nutrition labels and degree of necessity and satisfaction on food products and nutrition labels. Data was analyzed with regards to sex and school year by using a SAS package program. Significant differences of each variable were tested by using the $x^2$-test, t-test and ANOVA. Only 4.4% of participants were well informed about food and nutrition labels, while 26.0% of them did not know about it. Most of participants(78%) perceived that food and nutrition labeling system is necessary but are not satisfied with it. More of them did not check the food and nutrition label when they purchased food. Students usually checked the food and nutrition label to know about the nutritional value, and additives. The survey showed that more than three quarters of participants take notice of the food and nutrition label on products whereas only 57.7% of them knew what the food and nutrition actually meant. This study showed that most teenagers did not know the food and nutrition label, didn't have right information and didn't use it. Therefore, it is necessary to include an educational program about the food and nutrition label in the school curriculum and that will help students use the nutrition label and help them choose healthy food.

• Information Systems Review
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• v.14 no.2
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• pp.93-102
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• 2012

Network brings new values to the business in rapid changes of business paradigm. While business reveals new business model, the business has kept making efforts to replace traditional business model to network environment in order to solve the problems of spaces and times. In this research, we emphasize necessity through case study that the traditional concept of customer should be related with the concept of business network. The finding of this research mainly focused on business, tries to use traits of network without changes of business model, is easy to trap in structural inertia. However, the targeted companies in the case study preferentially considered customer as subscriber. Consequently, they successfully changed their existing business model as well as their business relationships with other companies. Based on methods of "Value Curve" and "Customer Experience Cycle," we analyzed the changed business model and proposed a conceptual idea regarding concept shifting from traditional customer to network subscriber. We hope that the research implicates to propose a new method for business model to develop more advanced business opportunities through using the concept of network subscriber.

• Journal of the Korean Society for Nondestructive Testing
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• v.19 no.5
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• pp.369-377
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• 1999

Recently, it is gradually raised necessity that thickness of thin film is measured accuracy and managed in industrial circles and medical world. Ultrasonic signal processing method is likely to become a very powerful method for NDE method of detection of microdefects and thickness measurement of thin film below the limit of ultrasonic distance resolution in the opaque materials, provides useful information that cannot be obtained by a conventional measuring system. In the present research. considering a thin film below the limit of ultrasonic distance resolution sandwiched between three substances as acoustical analysis model, demonstrated the usefulness of ultrasonic signal processing technique using information of ultrasonic frequency for NDE of measurements of thin film thickness. Accordingly, for the detection of delamination between the junction condition of boundary microdefect of thin film sandwiched between three substances the results from digital image processing.

• Journal of the Institute of Electronics and Information Engineers
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• v.50 no.6
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• pp.22-32
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• 2013

Wireless Sensor Network(WSN) has attracted great interest recently and the necessity of ZigBee has appeared to standardize and apply the upper layer specification based on the IEEE 802.15.4 standard specification in industrial field. Currently, there are many studies about the IEEE 802.15.4/ZigBee communication channel. And it is subject of interest to analyze the performance in various channel environments. In this paper, we propose channel models through the analysis of the IEEE 802.15.4 radio wave propagation characteristics in various channel environments. Also, we have analyzed the performance of the IEEE 802.15.4/ZigBee for the standard of physical layer of 2.4GHz band in each channel environments.