Pohang, South Korea
Pohang, South Korea

Youngdong University is a private university located in Yeongdong-eup, Yeongdong County, North Chungcheong province, South Korea. It employs around 65 full-time instructors. Although traditionally focused on engineering, the university now offers degree programs in a range of fields including English as an international language, leisure studies, and special education. Wikipedia.

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Lee H.-J.,Youngdong University
Communications in Computer and Information Science | Year: 2012

It is rather obvious that prosody and text play crucial roles in successful emotional speech synthesis systems. However, the effects of prosody structure and word semantics are still studied independently despite their combined importance. In this paper, we propose an interactive fairy tale storytelling system that can express emotions too. For this system, we classify emotions into prosody-sensitive emotions and word-semantics-sensitive emotions, following the characteristics of individual emotions as analyzed from several experiments. As a result, we have found that joy is predominantly a word-semantics-sensitive emotion, which is why it is very hard to express the emotion with a prosody structure alone. © 2012 Springer-Verlag.


Shin Y.-D.,Youngdong University
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) | Year: 2012

In this paper, we proposed a fast detection method of copy-move forgery image using three step search algorithm in the spatial domain. We proposed a new block distortion measure, matching criterion of copy-moved forgery image detection. Our algorithm reduced computational complexity more than conventional frequency domain algorithms and exhaustive search algorithm. We didn't use any exhaustive search method and frequency domain to reduce compute complexity in this paper. © 2012 Springer-Verlag.


Shin Y.-D.,Youngdong University
Journal of Next Generation Information Technology | Year: 2014

We proposed forgery image detection method of scale up and down image using discrete cosine transform (DCT). The proposed method analyzed scale up and down forgery images based on frequency distribution of DCT coefficients. We just used discrete cosine transform without expectation maximization (EM) algorithm, probability map, and discrete Fourier transform. We ascertained the forgery image detection in the scale up and down image region. The image regions of scale up and down were found by DCT coefficients distribution in the frequency domain.


Shin Y.-D.,Youngdong University
International Journal of Security and its Applications | Year: 2016

In this paper, we proposed a new fast detection method of copy-move forgery image using two step search algorithm in the spatial domain. We proposed a new two step search algorithm for copy-moved forgery image detection. The performance of the proposed method is experimented on several forged images. Our two step search algorithm reduced 96.82% computational complexity more than conventional algorithms for copy-move forgery image detection. The block distortion measure (BDM) of the two step search algorithm is sufficient by 2 pixels checking points instead of 64 pixels checking points for exhaustive search in the not copy-moved forgery image regions. Most blocks of the images constitute not copy-moved forgery images. Therefore, we can reduce computational complexity more than conventional methods. We didn't use any exhaustive search method and frequency domain (ex. DCT, Wavelet Transform) to reduce computational complexity in this paper. © 2016 SERSC.


Moon S.-W.,Youngdong University | Lee M.-K.,Korea Food Research Institute
Journal of the Korean Society of Food Science and Nutrition | Year: 2011

In this study, we evaluated the effects of harvey powder on the fernentation of Yulmoo Kimchi, by measuring sensory, physicochemical, and microbiological properties during fermentation up to 31 days. The Yulmoo Kimchi, with various levels [0, 0.1, 0.2, 0.3, 0.4% (w/w)] of harvey powder, was fermented at 10°C. The product containing the control evidenced the highest scores for appearance and smell. Taste, carbonated taste, texture and overall acceptability were highest in the 0.1% harvey powder and control. During fermentation, titratable acidity increased while pH gradually decreased. Reducing sugar showed no difference at initial fermentation and then steadily decreased. Total vitamin C was gradually decreased during fermentation and reduced sharply after 10 days, and then almost maintained. Total polyphenol content was the highest in the 0.3% harvey powder on day 0 and maintained in all samples thereafter. Antioxidant effect of the Yulmoo Kimchi with 0.1% Harvey powder was shown to be the highest. Also, the time required to achieve maximum levels of lactic acid bacteria, as determined by log numbers of cells and total viable cells, were more delayed in the experimental groups with added harvey powder than in the controls. Our results indicated that the Yulmoo Kimchii with below 0.1% added harvey powder was acceptable.


Yoo J.-H.,Youngdong University
Journal of Hydrologic Engineering | Year: 2012

In engineering hydrology, a lumped rainfall-runoff model applied to a watershed often requires a calculation of the effective rainfall, which deducts the precipitation losses from the total rainfall contributing to the direct runoff. In the model, these loss elements vary individually with time during a rain storm on a watershed. An estimation of the loss elements or abstractions, such as infiltration, depression storage, evapotranspiration, and interception, for the calculation of the effective rainfall in a watershed presents a practical challenge. Previous research has estimated infiltration and other loss elements in a watershed individually in the case of a storm event. Moreover, to date, these other loss elements have been treated as minor. However, this study proposes a simple model that estimates precipitation losses not individually but by combining the loss components together. A composite loss rate model that combines four loss rates over time is derived as a lumped form of a continuous time function for a storm event. The loss rate model developed is an exponential model similar to Horton's infiltration model, but its parameters have different meanings. In this model, the initial loss rate is related to antecedent precipitation amounts before a storm event, and the decay factor of the loss rate is a composite decay of four losses. As a case study, a method for estimating the parameters of this model is presented. In the case study, data sets from 10 rain storms observed at the Jeonjeokbigyo stage station in the experimental watershed of Selma-Cheon near Seoul in South Korea are used. © 2012 American Society of Civil Engineers.


Kang I.-O.,Youngdong University | Park C.Y.,Yonsei University | Lee Y.,Ajou University
Journal of Korean Medical Science | Year: 2012

With the rapid aging of the population, Korea introduced public long-term care insurance for older people in 2008. The long-term care insurance was designed as a separate scheme from the national health insurance, with eligibility qualifications and the certification process based on functional disability, benefits and coverage of community-based and institutional care, and a financing structure through multi-party contributions. Delivering appropriate health services to long-term care beneficiaries who manifest a high prevalence of comorbid chronic conditions with rising healthcare costs, however, presents a particular challenge. The lack of coordination between the health and long-term care sectors, limited consideration of physicians' assessments in the certification process, inadequate provision of health services in long-term care facilities, and overlapping and inefficient use of care resources act as barriers to providing comprehensive healthcare for older beneficiaries. Through active participation in the long-term care system, health professionals can help older patients navigate through the complex long-term care terrain to obtain quality healthcare. © 2012 The Korean Academy of Medical Sciences.


Shin Y.-D.,Youngdong University
Journal of Next Generation Information Technology | Year: 2011

In this paper we presented a new model for cyber crime investigation procedure which is as follows: readiness phase, consulting with profiler, cyber crime classification and investigation priority decision, damaged cyber crime scene investigation, analysis by crime profiler, suspects tracking, injurer cyber crime scene investigation, suspect summon, cyber crime logical reconstruction, writing report.


Yoo J.-H.,Youngdong University
Journal of Hydrologic Engineering | Year: 2013

A new linear programming method with an option for topographical factors is developed for estimating missing precipitation. It is simply assumed that missing precipitation depth at a base station is expressed as a linear combination of precipitation depths at neighboring index stations in the same period using weighting factors. Also, the topographical factor, which is proportional to the weighting factor, is introduced into the method. The topographical factor is associated with distance and difference in elevation between the base station and the index station. In this research two case studies show an introduction of the topographical factors into the existing linear programming method for estimating missing precipitation and makes weighting factors in the method change into those reflecting the topography of precipitation points. The developed method with an option is useful in estimating the missing precipitation values in the case of hilly regions only when the option is taken after applying four options. © 2013 American Society of Civil Engineers.


Hong S.W.,Youngdong University | Huang C.-L.,Tamkang University
International Journal of Services and Operations Management | Year: 2011

This paper examined Total Quality Management (TQM) implementation in Research and Development (R&D) organisations with empirical data from South Korean and Taiwanese manufacturing firms. A literature review established three hypotheses in regard to similarity in TQM implementation patterns, the impact of TQM for innovation performance and the mediating role of hard TQM. TQM measures were based on the six criteria of the Malcolm Baldrige National Quality Award, while innovation performance measures consisted of product quality and product innovation aspects. Our findings indicated that TQM practices were uniformly applied across the two countries. TQM were also found to have a significant impact on product quality and product innovation. However, the hypothesised mediating role of hard TQM was dismissed. © 2011 Inderscience Enterprises Ltd.

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