• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.9 no.5
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• pp.13-20
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• 2014

This study drew a conclusion about the current situation and the trend of start-up in Korea by understanding the convenience of start-up and startup outcome(business satisfaction and income after startup) by year, and by analyzing the trend of the convenience of start-up by each detail items and by industry. In addition to, the key factors of successful business start-up are demonstrated by synthetically examining how the factors influence the outcome of startup, including human capital, business characteristics, economic feature, and situational/institutional characteristics, as well as demographic characteristics. According to the result, business satisfaction after startup by year and business income have gradually increased from 2005, but the convenience of start-up has constantly decreased. Based on the industry, the convenience of start-up shows a statistical significance. Lastly, the factors that influence the outcome of business start-up are complexly turned up as human capital, business characteristics, economic feature, and situational/institutional characteristics, as well as demographic characteristics.

• Journal of the Korea Convergence Society
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• v.8 no.12
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• pp.291-298
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• 2017

In recent years, the increase of secondary controls within vehicles requires a mechanism to integrate various controls into a single device. This paper presents control performance of an integrated magnetorheological (MR) haptic device which can adjust various in-vehicle comfort instruments. As a first step, the MR fluid-based haptic device capable of both rotary and push motions within a single device is devised as an integrated multi-functional instrument control device. Under consideration of the torque and force model of the proposed device, a magnetic circuit is designed. The proposed MR haptic device is then manufactured and its field-dependent torque and force are experimentally evaluated. Furthermore, an inverse model compensator is synthesized under basis of the Bingham model of the MR fluid and torque/force model of the device. Subsequently, haptic force-feedback maps considering in-vehicle comfort functions are constructed and interacts with the compensator to achieve a desired force-feedback. Control performances such as reflection force are experimentally evaluated for two specific comfort functions.

• Journal of the Korean Society of Hazard Mitigation
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• v.7 no.4
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• pp.19-29
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• 2007

This study compares various ground-truth designs of radar rainfall using rain-gauge data sets from Korea Meteorological Administration (KMA), AWS and Ministry of Construction and Transportation (MOCT). These Rain-gauge data sets and the Mt. Gwanak radar rainfall data for the same period were compared, and then the differences between two observed rainfall were evaluated with respect to the amount of bias. Additionally this study investigated possible differences in bias due to different storm characteristics. The application results showed no distinct differences between biases from three rain-gauge data sets, but some differences in their statistical characteristics. In overall, the design bias from MOCT was estimated to be the smallest among the three rain-gauge data sets. Among three storm events considered, the jangma with the highest spatial intermittency showed the smallest bias.

• Journal of Digital Convergence
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• v.12 no.12
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• pp.129-137
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• 2014

The purpose of this study is to understand major factors of site selection of convenience stores in Busan and Gyeong-nam Region. This will be done by analyzing correlations of sale, profit and localization factors and choosing the major correlation factors out of them and carrying out regression analysis to analyze each factor's influence extent. the competition factor : It is shown that the competition factor has significant result with the sale and the profit and the effect of that is proved the biggest among all location requirements. Therefore, the competition factor is the most important factors above all. By providing recently standards and implications of site selection of stores, this study suggests a guideline for site selection not only to prep entrepreneurs and store developers but also prep entrepreneurs of retail store.

• Journal of the Institute of Electronics and Information Engineers
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• v.52 no.10
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• pp.73-81
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• 2015

The paper proposes a prototype selection method and evaluates the generalization performance of standard algorithms and prototype based classification learning. The proposed prototype classifier defines multidimensional spheres with variable radii within class areas and generates a small set of training data. The nearest-neighbor classifier uses the new training set for predicting the class of test data. By decomposing bias and variance of the mean expected error value, we compare the generalization errors of k-nearest neighbor, Bayesian classifier, prototype selection using fixed radius and the proposed prototype selection method. In experiments, the bias-variance changing trends of the proposed prototype classifier are similar to those of nearest neighbor classifiers with all training data and the prototype selection rates are under 27.0% on average.

• Journal of Gifted/Talented Education
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• v.24 no.1
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• pp.45-61
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• 2014

In this study, the meta-analysis technique was applied to investigate the effectiveness of gifted education in non-cognitive areas. Studies conducted during the years from 2002 to 2012 were searched and then the outcomes from the 18 studies were used for meta-analysis. The statistically positive effects were in the leadership programs (the combined effect size=1.226, p<.001), in the career programs (the combined effect size=1.103, p<.001), in the programs related to social skills (the combined effect size=1.684, p<.001), in the programs for gifted students who show underachievement (the combined effect size=1.486, p<.001), and in the bibliotherapy programs (the combined effect size=0.613, p<.001) for the gifted. Implications of the study were discussed in depth based on the results.

• Proceedings of the Korean Society of Postharvest Science and Technology of Agricultural Products Conference
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• 2003.10a
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• pp.218.3-219
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• 2003

백편을 만들 때 멥쌀가루 100에 찹쌀가루를 총중량의 0%, 5%, 10%, 15%, 20%, 25%, 30% 첨가하고 저장시간 0시간, 24시간, 48시간, 72시간 저장한 후 (4$^{\circ}C$에서) reheating 한 백편의 기호성과 조직감(Texture)에 어떠한 영향을 끼치는 가를 관능검사와 기계적 검사에 의해 측정한 결과를 다음과 같이 요약할 수 있다 1. 관능검사 결과 백편의 Color 는 찹쌀의 첨가량이 증가할수록 누런색이 짙어졌으며, 24, 48, 72 시간 저장한 후 reheating 한 백편도 누런색이 짙어지는 경향을 나타냈다. Coarseness 는 찹쌀의 첨가량이 증가할수록 증가하는 경향이었으나 저장전의 백편은 유의적인 경향을 나타내지 않았다. 찹쌀의 첨가량이 증가할수록 Softness, Dryness, crumblyness는 감소경향을 나타냈으며 24, 48, 72 시간을 저장한 후 reheating 한 백편도 유의적인 감소경향을 나타냈다. 외관의 기호도는 찹쌀의 첨가율이 5% 인 백편을 가장 좋아했고, 조직감 및 종합적인 기호도는 찹쌀의 첨가율이 10~20%인 백편을 좋아했다. 2. Rhemeter에 의한 백편의 Texture는 찹쌀의 첨가량이 증가할수록 Compression force, gumminess, Chewiness가 증가하는 경향을 나타냈다. 24, 48, 72 시간 저장한 후 reheating 한 백편은 저장전보다 점점 감소경향을 나타냈다가 72시간 저장한 후 reheating 하면 다시 증가경향을 나타냈다. Work ratio 및 Recovered height는 찹쌀의 첨가량과 저장시간의 변화에 크게 영향을 미치지 않았다. Recovered 하지 않고 0, 24, 48, 72 시간 저장한 백편의 Compressing force는 찹쌀의 첨가량이 증가할수록 증가경향이 컸고 저장시간이 경과함에 따라 Compression force가 증가하였는데 특히 24시간 저장하는 동안 급격히 증가하였다. 3. 찹쌀 첨가량이 증가할수록 수분함량은 증가하였고, 저장시간이 경과함에 따라 수분함량은 감소경향을 나타냈으나 24시간 저장한 후 reheating 한 백편만이 수분함량의 증가경향을 나타내었다. 4. qoruvs의 Softness 는 Compression force 및 Work ratio 와 유의적인 상관관계를 나타내었으며, Dryness 와 Crumblyness 는 Work ratio와 유의적인 상관관계를 나타내고 있어 백편의 조직감은 Compression force 와 Work ratio로 대치할 수 있을 것이라고 사료된다. 수분함량은 기계적 검사보다 관능검사와 더욱 높은 상관관계를 나타냈다.

• Convergence Security Journal
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• v.7 no.4
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• pp.61-72
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• 2007

We developed a convenience-featured Web browser which is intended to enhance Web users' convenience. The integrated convenience functions are VPV(Visited Page Viewer), APV(Aligned Page Viewer), USC(User Specified Capture), and VAC(Video and Audio Converter) which is the most important feature of FLV(FLash Video file) in UCC (User Created Contents). The four functions are considered ad the most needed functions to the Web users and we referred to the opinion of frequent and advanced Web users. We addressed important algorithms and techniques in terms of the implementation of the above four functions. The implementation methods based on the MDI application using rendering technique same as in Internet Explorer 6.0 are shown with codes. The results of implementation is compared with the survey conducted on 134 Computer Science and Multimedia Engineering major students. All four integrated functions are considered to be useful.

• Archives of design research
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• v.15 no.3
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• pp.63-72
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• 2002

I made the three main estimated head about the facility of mechanical pencil which we always use in normal days. The head are these, the first is apparent usability by experiment, the second is the feeling when grasping, the third is the feeling when writing. After making the head, 1 selected the head which give the effect to the facility and make sure the interaction between heads by the method of actual test with 36 samples. After this test, 1 can find that there is no high interaction between the facility and the intuitively feeling by experiment. It's because the expectation which was made by experiment for the facility is higher than the real. but there is high interaction between the feeling of wearing and the feeling of writing. The mechanical pencil which has good facility is that the total length is long(169mm), the thickness is big($\Phi$8.5mm), the weight is little bit heavy(21.4g), the intersection is not circle, the surface where is hold by fingers has across grooves, and the body is glossy.

• Journal of Korea Water Resources Association
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• v.51 no.7
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• pp.575-584
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• 2018

An increase in heavy rainfall and floods have been observed over South Korea due to recent abnormal weather. In this perspective, the high-resolution weather forecasts have been widely used to facilitate flood management. However, these models are known to be biased due to initial conditions and topographical conditions in the process of model building. Theretofore, a bias correction scheme is largely applied for the practical use of the prediction to flood management. This study introduces a new mean field bias correction (MFBC) approach for the high-resolution numerical rainfall products, which is based on a Bayesian Kriging model to combine an interpolation technique and MFBC approach for spatial representation of the error. The results showed that the proposed method can reliably estimate the bias correction factor over ungauged area with an improvement in the reduction of errors. Moreover, it can be seen that the bias corrected rainfall forecasts could be used up to 72 hours ahead with a relatively high accuracy.