• The Journal of Korea Robotics Society
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• v.11 no.4
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• pp.285-292
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• 2016

For articulated swimming robots, there have been no researches about controlling the motion or trajectory following. A control method for articulated swimming robot is suggested by extending a previous algorithm, ESPG (Extended Swimming Pattern Generator). The control method focuses on the situation that continuous pre-determined swimming pattern is applied for long range travelling. In previous studies, there has not been a way to control the propulsive force when a swimming pattern created by ESPG was in progress. Hence, no control could be made unless the swimming pattern was completed even though an error occurred while the swimming pattern was in progress. In order to solve this problem, this study analyzes swimming patterns and suggests a method to control the propulsive force even while the swimming pattern was in progress. The angular velocity of each link is influenced and this eventually modifies the propulsive force. However, The angular velocity is changed, a number of problems can occur. In order to resolve this issue, phase compensation method and synchronization method were suggested. A simple controller was designed to confirm whether the suggested methods are able to control and a simulation has affirmed it. Moreover, it was applied to CALEB 10 (a biomimetic underwater articulated robot) and the result was verified.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2016.05a
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• pp.156-157
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• 2016

Construction projects have shown a dramatic increase in size and complexity during the recent years that precise management has been recognized as one of key factors leading the project to success. It has been investigated that management in construction sites is generally done based on the experience of site engineers. Such experience based decision making lacks reliability that could bring disastrous results such as delay and cost overruns. The purpose of this study is to suggest a process progress pattern analysis method that is expected to be used as an objective reference for site managers to aid the decision making done regarding process progress management.

• Journal of Korean Institute of Industrial Engineers
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• v.43 no.3
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• pp.184-191
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• 2017

Progress indicators provide information about downloading progress and the remaining time. Two common forms of indicator are bar and spinner. However, most studies have focused on the form of bar. Therefore, we are going to investigate which patterns of progress spinner show better perceived speed and satisfaction. Also the effects of provision of time information were studied. This study provided the progress spinner with different patterns with 4 seconds and 12 seconds download latencies. The participants evaluated overall satisfaction and perceived downloading speed. As a result, 'Speed Up' patterns showed the higher perceived downloading speed and satisfaction than 'Speed Down' patterns. In 4s situation, it was better with time information was absent. In 12s situation, it was higher in terms of the perceived downloading speed when time information was provided.

• Progress in Superconductivity
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• v.6 no.2
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• pp.113-117
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• 2005

In this study, electromagnetic analysis of current paths including meander pattern, spiral pattern, and bi-spiral pattern were performed and in order to verity the analysis results, experiments tests including quench test, and insulation tests were performed. In addition, bubble corner concepts were introduced to enhance insulation reliability. From our study, bi-spiral pattern of YBCO thin films were rather effective for quench and insulation than the other patterns. So this current path pattern was adopted for YBCO thin films in order to develop 6.6 kV resistive fault current limiters. Finally YBCO thin films were connected in series and parallel to enhance capacity, and the test results of current limiting characteristics of 6.6kV resistive SFCL were successful. The Progress in Superconductivity is published every six month and serves as a channel for publications on superconductivity and related topics. The author(s) are required to submit THREE copies of the manuscripts along with original figures directly to the Editor.

• Journal of Korea Technology Innovation Society
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• v.8 no.spc1
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• pp.433-450
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• 2005

This paper empirically traces out the determinants of Information and Communication Technologies (ICT) progress. Using cross-national evidence, it is found that a country's income level and its distribution affect the ICT progress, through their influences on home market demand pattern. This result holds even when controlling for other variables that affects ICT progress and a sub-sample of less developed countries. Based on the findings, it is possible to conjecture that ICT progress can be a plausible reason for the income polarization in the world. In addition, a country with higher levels of human capital accumulation and financial development is positively associated with the ICT progress, although the effects depend on the sample and model specifications. However, these results are based on crude theoretical backgrounds and estimations, which require for further studies in the future.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.1 no.3
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• pp.77-82
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• 2008

In this paper, in the middle of progressing popular music chord, a method of inserting melody is addressed, which utilized by analyzing chord progress pattern. Firstly, a method for transforming melody into bit pattern which is to be used for neural network input is described. In order to insert the melody, composition pattern is learned from back propagation neural network, and based on these data new melody is to be generated. Experimental results verified the possibility of neural network based computer composition.

• Journal of Korea Technology Innovation Society
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• v.8 no.3
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• pp.1157-1174
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• 2005

This paper aims at examining the disembodied technological progress in the Korean IT service industry, on the assumption that competition leads to the disembodied technological progress. Hobijn model (2000) which abstracts the disembodied technological progress from the total technological progress and Bai et al. Model (1998, 2003) which identifies time of the technological structural change are used for empirical study. The empirical analysis indicates the major structural change in the pattern of the disembodied technology progress occurred after 1995 in the Korean IT service industry. This means that policies for the introduction of competition system and the industry promotion around 1995 have a positive effect on the development of the Korean IT service industry.

• 대한상한금궤의학회지
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• v.12 no.1
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• pp.137-147
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• 2020

Objective: In this study, we aimed to inform people that acne can be improved with Osuyu-tang (OSYT) based on the Shanghanlun disease pattern identification diagnostic system (DPIDS). Methods: We evaluated the progress of symptoms, patient compliance, and presence of side effects after the patient took OSYT. The progress of acne treatment was evaluated using the Korean Acne Grading System (KAGS), visual findings, and patient statements. Results: According to the DPIDS, the patient was diagnosed with provision 309 of soyinbing. After administration of OSYTfor 50 days, KAGS decreased from grade 3 to grade 1. Cold hands and feet improved significantly. Conclusions: Through this case study, we showed the possibility of the clinical interpretation and application of OSYT and suggested further case studies in the future.

• Journal of the Optical Society of Korea
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• v.13 no.4
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• pp.406-415
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• 2009

Optical scanning holography (OSH) is a distinct digital holographic technique in that real-time holographic recording a three-dimensional (3-D) object can be acquired by using two-dimensional active optical heterodyne scanning. Applications of the technique so far have included optical scanning cryptography, optical scanning microscopy, 3-D pattern recognition, 3-D holographic TV, and 3-D optical remote sensing. This paper reviews some of the recent progress in OSH. Some possible further works are also discussed.

• The Research Journal of the Costume Culture
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• v.31 no.1
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• pp.18-33
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• 2023

Zero-waste pattern cutting is a groundbreaking sustainable fashion practice. However, few brands and designers have pursued this method because it requires creative pattern design that diverges from the existing process of using pattern slopers. Therefore, application within the fashion industry is not sufficient. Therefore, in an attempt to highlight the key characteristics of zero-waste pattern design, this study classifies and analyzes cases in which similar designs employ zero-waste pattern-cutting techniques. We hope to make zero-waste pattern design more accessible by presenting realistic pattern-cutting guidelines. To this end, theoretical research on relevant literature, previous research, and online resources and an empirical analysis of cases involving zero-waste pattern cutting were conducted in parallel. As a result of the study, we were able to classify the factors of zero-waste pattern design in terms of fabric use, design, and composition. Regarding materials, our research revealed the importance of appropriate fabric width, understanding the difference between waste minimization and minimal fabric use, and easy reuse and recycling. In terms of design, the simultaneous progress of pattern and design work, adjustable loose silhouettes, and the use of surplus fabric for functional and decorative details emerged as key characteristics. For composition, we found that size adjustment limits, arrangement irregularity, and pattern shapes were crucial elements and that various arrangements revealed unlimited design potential.