• Korean journal of applied entomology
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• v.20 no.3 s.48
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• pp.146-150
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• 1981

Two rice cultivars infected by Gibberella fujikuroi, were tested to investigate the sequential change of disease development in the field conditions. In the preliminary test, the seeds of Nongbaek and an unknown cultivar showed 21 and $31.7\%$ infection by C. fuiikuroi. At the late stage of water nursery bed, some seedlings produced typical elongation symptom of bakanae disease and most of the leaves were dried up within a few days after transplanting. Out of the healthy looking seedlings, some plants also developed bakanae symptoms from middle June being two week after transplanting and the number was increased until middle September.

• The Journal of the Convergence on Culture Technology
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• v.7 no.3
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• pp.231-239
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• 2021

The purpose of this study is to verify the effectiveness of service quality on satisfaction factors, and to provide practical information on the management of Taekwondo Dojang nationwide, which are facing difficulties due to the decrease in trainees and COVID-19. In this study, 11 studies were selected from January 2010 to December 2020. The conclusion is as follows. First of all, it has been confirmed that the overall influence of Taekwondo dojo service on satisfaction is moderate. Second, the effectiveness of low-quality service on satisfaction (painting, customers, trainees) was the highest, and there was no significant difference between the factors in order of confidence, response, empathy and reliability. Third, the quality, effectiveness and satisfaction of the satisfaction type were the greatest, and the satisfaction of the trainees was the coating and customer satisfaction.

• Journal of the Korean Applied Science and Technology
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• v.39 no.2
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• pp.340-347
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• 2022

This study aimed to provide basic data on how to strengthen competitiveness and operate efficiently by differentiated selection attributes by identifying the influence between satisfaction and continuous participation intention, focusing on the selection attributes of Taekwondo studio perceived by parents. Therefore, parents who had registered at a Taekwondo studio located in the metropolitan area and participated in their children were selected as samples and surveyed from February 1 to 26, 2021, and a total of 386 copies of data were used for the final analysis. Data processing used the SPSS (ver.21.0) program to conduct frequency analysis, exploratory factor analysis, internal consistency, correlation analysis, simple and multiple regression analysis. The main results of this study are as follows. First, the selection attributes of Taekwondo studio has been shown to influence the satisfaction in the order of facilities and environment, master, cost and program. Second, the satisfaction has been shown to influence the continuous participation intention. Third, the selection attributes of Taekwondo studio has been shown to influence the continuous participation intention in the order of accessibility, facilities and environment, master and program.

• Journal of Korean Society of Steel Construction
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• v.28 no.5
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• pp.373-382
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• 2016

Painting or thermally sprayed metal coating is often used in corrosion protection of steel structures. In recently, duplex coating system which combines thermally sprayed metals with paint is selected as a new generic type of coatings on steel structures under the highly corrosive environments. In this study, the structural steel specimens were surface treated, thermally sprayed with zinc, zinc-15%aluminum alloy, aluminum and aluminum-5%magnesium alloy, and finally sealing or painted with acrylic urethane. And as a reference specimens, steel specimens were painted with acrylic urethane after surface treatment. Circular defects with 1.0, 3.0 and 5.0 mm in diameters and line defect with 2.0 mm width, which reach the steel substrate were created on all specimens. The specimens were exposed into an environmental testing chamber controlled by the ISO 20340, which is a laboratory cyclic accelerated exposure test condition of spraying/UV/low temperature, for up to 175 days. Based on the corrosion tests, corrosion deterioration from the initial defects were evaluated and weathering performance of the specimens are compared.

• Special Issue of the Society of Naval Architects of Korea
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• 2011.09a
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• pp.75-81
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• 2011

An indirect concept and method is proposed to predict the paint dry time at the inside wall of ship block. To implement this concept on computer program, optimal hot air supply-exhaust system of paint dry facility was designed by CFD simulation and experiment was performed to get the paint dry time curve according to various paint dry conditions. After combining the block inside environment from the simulation results and the paint dry time prediction curve from the curve-fitting of experimental result, the GUI program which can be executed in general PC OS has been finally developed.

• Journal of the Daesoon Academy of Sciences
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• v.36
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• pp.35-78
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• 2020

This study aims to reveal the overall Fengshui figuration and geomantic features of Daesoon Jinrihoe's Geumgangsan (Mt. Geumgang) Toseong Training Temple Complex from the Hyeonggi (Energy of Form) Theory in Fengshui. This study first looked at the mountain landscape viewable from the surface, examined the influence of Qi (Energy) flowing inside it, comprehended the flow of its vitality in terms of its strengths and weaknesses, and gauged the depth of the energy produced from mountain streams to determine fortune and misfortune. There is a special significance to this site due to Sangje's teaching that "⋯ it will be prosperous with 12,000 Dotonggunja (Dao-empowered Sages)," and it is also known as a efficacious grounds for cultivation among ascetics due to it housing the royal mausoleum of Dojeon (interpreted by some as Maitreya). Concerning this, this study explores the geomantic symbolism and growth-supporting land of Geumgangsan Toseong Training Temple Complex as it corresponds to Fengshui theory, and in keeping with this, the topography and conditions are likewise examined. The mountain range and its energy pathways (veins) harmonize with the pure water energy coming from the East Sea. The mountain terrain of Mount Geumgang, and the geomantic location, topography, and energy pathways that influence Daesoon Jinrihoe Geumgangsan Toseong Training Temple Complex are all explored. The Baekdudaegan Mountain Range extends through Mount Geumgang to Sinseonbong Peak, and one range extends to Geumgangsan Toseong Training Temple Complex whereas the other range extends through Sangbong Peak down to Misiryeong Valley and Mount Seorak. Thus, this study demonstrates that Daesoon Jinrihoe has always strongly considered the relationship between its temple complexes and their surrounding environment. The order has always selected locations that exhibit optimal conditions which suit the construction of sacred spaces. The determinations in this paper were made through an academic approach that drew upon various theories of Fengshui while examining Daesoon Jinrihoe's Geumgangsan Toseong Training Temple Complex. The in-depth analysis was specifically based on Hyeonggi Fengshui. At the same time, this study also looked into the surroundings of Geumgangsan Toseong Training Temple Complex. In particular, the mountains and flow of nearby bodies of water were comprehensively examined to show how the surrounding topography corresponds to the principles of Fengshui. An integral approach combining all major theories of Fengshui revealed that Geumgangsan Toseong Training Temple Complex starts from Sinseonbong Peak, and its energy flows through the main mountain range, going through numerous geographical changes of yin and yang. When the range flows down, the water flows accordingly, and where the water whirls, the mountains are shaped accordingly. Eventually, this energy reaches Geumgangsan Toseong Training Temple Complex. From the organic relationship between mountains and bodies of water, which can be said to be the essence of the order of nature, it can be judged that the most prominent geomantic feature of Geumgangsan Toseong Training Temple Complex corresponds to traditional theories of Fengshui in that it forms a configuration wherein optimal water energy supports the Virtuous Concordance of Yin Yang and harmonizes the Blue Dragon with the White Tiger.

• IE interfaces
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• v.9 no.2
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• pp.61-74
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• 1996

자동차 조립공장의 주요 공정은 차체라인, 도장라인, 조립라인의 순으로 구성되어 있다. 작업의 효율성을 높이기 위하여 차체라인과 조립라인은 주요 부품소모의 평준화를, 도장라인은 동일 색상차체의 연속 생산을 선호하므로, 생산순서의 결정시 상호 상층되는 점이 많다. 본 연구에서는 조립공장전체의 생산성을 극대화하기 위하여 차체라인, 도장라인, 조립라인의 특성을 고려한 일일생산순서결정 방법을 제시한다.

• Proceedings of the Korea Concrete Institute Conference
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• 2010.05a
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• pp.193-194
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• 2010

Developed is a chloride penetration analysis program that can consider a concrete surface coating. The effect of concrete surface coating on the service life is simulated by the developed finite element program. It was revealed that the coating at the earlier age is the more effective way to extend the service life.

• Proceedings of the Korean Institute of Surface Engineering Conference
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• 2015.05a
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• pp.142-142
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• 2015

해상에서 운용하는 항공기는 염분이 포함된 대기로 인하여 부식이 발생하기 쉬우므로 항공기 기체에 영향을 주는 부식인자를 가장 효과적으로 차단할 수 있는 도장 방안에 대한 연구가 필요하다. 따라서 본 연구에서는 이러한 해상운용 항공기의 부식방지를 위해서 염수분무실험과 밀착력실험을 통해 효과적인 도장적용 방법과 도료의 내식성을 확인하였다.

• Proceedings of the Korean Institute of Surface Engineering Conference
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• 2007.04a
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• pp.29-30
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• 2007

내지문 강판은 가전재 내외판으로 사용되며 주로 전기아연도금강판을 이용한다. 그러나 최근 일부 가전사에서는 전기아연도금강판 대신 용융아연도금강판으로 일부 대체가 되고 있으며 특히 분체도장을 하는 외판에서 용융아연도금강판의 수요가 늘어나게 되었다. 이에 본고에서는 내지문 용융도금강판 개발을 위해 분체도장물성이 우수한 내지문 수지를 사용하여 기존 전기도금강판과 비교 테스트를 하였다.