• Vending industry
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• v.11 no.1
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• pp.22-25
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• 2012

식품자판기와 식품영업용기기는 한 통속(?)이다. 어쨌든 두 품목 다 기계를 통해 식품을 팔아 돈을 벌기 위해 존재한다. '완전 자동이냐, 사람 손을 거치는 반자동이냐'는 차이가 있을 뿐이다. 한때는 식품자판기가 식품영업용기기를 압도하던 때가 있었다. 하지만 자판기 시장이 불황에 빠지고 상대적으로 가격대가 저렴한 식품영업용기기들의 약진이 두드러지고 있는 게 최근의 상황이다. 실제로 팝콘제조기, 슬러쉬, 와플기계, 자동솜사탕기, 음료디스펜서 등의 품목이 작지만 알찬 실수요 사장으로 자리매김해 가고 있다. 이들 품목은 서비스 업종에서 필요하면 찾기 때문에 수요가 꾸준한 편이다. 식품영업용기기 시장에 있어 선두가 되기 위해선 가격 대비 좋은 품질을 갖추는 게 기본이다. 일단 비싸면 타깃 시장은 작아진다. 최근 와플기기 분야에서 국산화를 통해 시장돌풍을 일으키는 업체가 있다. 식품영업용기기의 시장 생리를 누구보다 잘 알고 발 빠르게 대응하는데 일가견이 있는 예주테크코리아가 그 주인공이다.

• Proceedings of the Korea Contents Association Conference
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• 2013.05a
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• pp.315-316
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• 2013

최근, 중국이 급속도로 도시화되고 경관 공간을 재건축하면서 대부분의 도시는 심혈을 기울여서 그 도시만의 이미지를 만들어 가장 쉽게 도시의 특색있는 경치를 나타낸 지역을 형성하였다 - 수변지역은 점점 도시 건설의 중점이 되고 있다. 황허(?河)하류 더저우(덕주德州)는 원래 "九達天衢 '神京門戶(구달천구, 신경문호:수도로 들어가기 위해 반드시 거치는 길이고 남북 길을 가로지르고 있다)"라 불렸고, "대운하에 물을 대는 고성(古城)"으로 여겨진 경항대운하((京杭大運河)의 중요 연하도시였기에 운하 경치지역으로 조성하는데 총력을 기울였다. 이 때문에 반드시 수변지역 환경조형물에 대해서 선행 연구를 해야만 한다.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2002.05a
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• pp.32-36
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• 2002

본 논문에서는 워크플로우 시스템의 관리에 유용한 잠재 규clr을 도출하기 위한 프레임워크를 제안한다. 워크플로우 시스템의 전반적인 수행과정 관리에는 워크플로우 시스템의 모니터링 기능이 이용된다. 그러나 기존의 모니터링 기능은 시스템 수행과정에 대만 관리가 해당 시점에 한정된다는 문제점과, 모니터링 툴이 제공하는 이력 정보는 가공되지 않은 단순한 데이터베이스 필드 수준이라는 문제점이 있다. 따라서 본 연구에서는 워크플로우 시스템에 데이터 마이닝 기법을 이용해 누적된 데이터로부터 얻을 수 잇는 공통의 잠재 규칙에 대한 정보를 제공함으로써 기존의 모니터링 기능을 보완한다. 제안된 방법론은 분석 데이터 추출. 전처리. 연관관계 분석등의 단계를 거치며. 이러한 과정을 통해 워크플로우 시스템 관리에 유용한 잠재 규칙이 도출된다. 도출된 잠재 규칙은 추후 워크플로우 시스템에서 BPR(Business Process Reengineering)의 근거로 사용될 수 있다.

• Science of Emotion and Sensibility
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• v.21 no.2
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• pp.101-112
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• 2018

This study was carried out to enhance the competitiveness of blackbox design for domestic and international companies, based on the explosive growth of the blackbox market due to development of blackbox design for vehicle accident prevention and post-treatment. In the past, the blackbox market has produced products indiscriminately to meet the ever-increasing demand of consumers. Therefore, we thought a new design method was necessary to effectively investigate the needs of rapidly changing consumers. In this study, we aimed to identify the best-selling blackbox to understand the design flow, and the optimum area for a blackbox, considering the uniqueness of associated vehicle. Based on discussion with blackbox design experts, we studied the direction of design and the problems with blackbox use, which were reflected in blackbox development. Through this research, two types of design - leading blackbox (A type) and mass production blackbox (B type) - were proposed for compatibility of the blackbox with the car. The leading type of blackbox was positioned so that it was wrapped with the room mirror hinge before the screw was fastened, in order to achieve an integrated design. Therefore, we designed an integrated form and resolved the placement problem of an adhesive blackbox. To blend, the mass production blackbox implemented material and surface processing in the same way with the car, and adopted the slide structure to automatically turn off the main body power when removing the SDcard, reflecting consumer needs. This study considers evolving consumer needs through a case study and collective intelligence and deals with implementation of the whole design process during mass production. In this study, we aimed to strengthen the competitiveness of the blackbox design based on design method and its realization.

• Journal of Korean Society of Forest Science
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• v.22 no.1
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• pp.49-62
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• 1974

1. In the comparison of survival ratio among three different methods(bark graft, veneer graft, root graft), bark graft showed the highest survival ratio and root graft was the lowest. It was shown to be significant at the level of 5% in the analysis of variance for the results. It was able to be supposed that one of the main causes for the results was the different amounts of ferric tannic acid which was formated owing to the reaction of grafting knife with tannic acid oozing from cutting faces of the tree. In juvenile tissue graft, the survival ratio of inverted radicle graft was a little higher than that of juvenile stem graft, but there was no significant difference between two methods in analysis of variance. 2. The most hairs of chestnut tree leaves were recognized as stellates on the most part of leaves except for venation. The number of rays in the stellates was ranged from 4 to 8 generally. It was shown to be highly significant differences at the level of 1% among the each race growing at the similar environmental condition in the length of ray and the distributed ratio of the stellates having different ray number. 3. Excepting for the basal width of serration there were no significant differences between $Imakita_1$, $Imakita_2$ as well as between $Teteuchi_1$, $Teteuchi_2$ at the each point of experimental items in this study. Such results made this study more useful. 4. Among the races that were growing in the similar environmental condition, there were highly significant differences at the level of 1% in the length and the width of serration. 5. The rolling of hair, the angle of serration from the leaf margin, the existence of lateral vein in the serration, the intrusion of main vein into the serration and the width of main vein were observed to be somewhat useful as the subsidiary methods for the identification of chestnut races.

• Economic and Environmental Geology
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• v.54 no.6
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• pp.767-785
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• 2021

World-class magnesite deposits are developed in the Dashiqiao mineralized district of the Jiao-Liao-Ji Belt in China. This belt extends to the northern side of the Korean Peninsula and hosts major magnesite deposits in the Dancheon region of North Korea. Magnesite ores from the Pailou deposits in the Dashiqiao district is classified into pure magnetite, chlorite-magnetite, chlorite-talc-magnetite, and dolomite groups depending on the constituent minerals. According to the result of petrographic study, magnesite was formed by the alteration of dolomite, and, talc, chlorite, and apatite were produced as late-stage alteration minerals that replaced the magnesite. Fluid inclusions observed in magnesite are a liquid-type inclusion, with a homogenization temperature of 121-250 ℃ and a salinity of 1.7-22.4 wt% NaCl equiv. The chlorite geothermometer, indicating the temperature of hydrothermal alteration, is 137~293 ℃, slightly higher than the homogenization temperature of fluid inclusions, and the pressure is calculated to be less than 3.2 kb. For magnesite mineralization in the study area, the initially formed-dolomite was subjected to replacement by Mg-rich fluid to form a magnesite ore body, and then it was enriched through regional metamorphism and hydrothermal alteration. It seems that altered minerals such as talc were crystallized by Si and Al-rich late-stage hydrothermal fluids. These results are similar to the genetic environments of the Daeheung deposit, a representative magnesite deposit in North Korea, and it is believed that the two deposits went through a similar geological and ore genetic process of magnesite mineralization.

• Journal of the Korea institute for structural maintenance and inspection
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• v.14 no.2
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• pp.97-105
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• 2010

The displacements of steel deck bridge due to construction step are measured, and three dimensional analysis with full modeling is carried out to compare with the measured results. Three dimensional structural analyses considering construction step by large block construction method are accomplished with verified model. The conclusions are as follows. 1. Comparing the data of grid analysis with the result of 3D full modeling in steel deck bridge, the design method using grid analysis has a limit for describing the displacements of curved bridge. The analysis of 3D full modeling has been proved as more accurate method. The differentiation of results in two methods is about 10%~20%. 2. It is verified that the maximum displacement of during construction is 1.7 times larger than the displacement of final construction. 3. The bridge behavior considering the construction step is somewhat different from that of final stage in whole structure and the displacement and stress during construction is larger than that of final construction. Therefore, it needs the reasonable structural design considering the construction step to get economical efficiency and a high competitive construction.

• Journal of Internet Computing and Services
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• v.24 no.5
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• pp.107-120
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• 2023

The public bicycle of Seoul, Ttareungyi, was launched at October 2015 to reduce traffic and carbon emissions in downtown Seoul and now, 2023 Oct, the cumulative number of user is upto 4 million and the number of bike is about 43,000 with about 2700 stations. However, super growth of Ttareungyi has caused the several problems, especially demand/supply mismatch, and thus the Seoul citizen has been complained about out of stock. In this point, this study conducted a real time demand forecasting model to prevent stock out bike at stations. To develop the model, the research team gathered the rental·return transaction data of 20,000 bikes in whole 1600 stations for 2019 year and then analyzed bike usage, user behavior, bike stations, and so on. The forecasting model using machine learning is developed to predict the amount of rental/return on each bike station every hour through daily learning with the recent 90 days data with the weather information. The model is validated with MAE and RMSE of bike stations, and tested as a prototype service on the Seoul Bike Management System(Mobile App) for the relocation team of Seoul City.

• Journal of the Daesoon Academy of Sciences
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• v.48
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• pp.157-198
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• 2024

Aside from enriching spirituality, religiously-themed museums play a crucial role in resolving conflicts among the nations peripherally or various cultural groups in a broad sense. Relatively speaking, Korea has achieved a peaceful multi-religious society, yet the 2019 pandemic caused certain religious conflicts to surface or perhaps resurface. Since the 2000, due to the increasing number of migrants, there has been increasing awareness of the need to accommodating even greater levels of religious diversity. Accordingly, this study aims to apprehend various educational programs and exhibitions that have been developed by St. Mungo's Museum of Religious Life and Art, the State Museum of the History of Religion, and the Museum of World Religions in multi-ethnic societies such as the UK, Russia, and Taiwan. Therein, it will be determined how these museums contribute to mutual understanding and interaction and this research will suggest the development of a religiously-themed museum capable of resolving a number of social conflicts and enriching the diversity of its nation.

• Journal of Yeungnam Medical Science
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• v.24 no.2
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• pp.206-215
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• 2007

Background : The prone position is often used for operations involving the spine and provides excellent surgical access. The complications associated with the prone position include ocular and auricular injuries, and musculoskeletal injuries. In particular, the prone position during general anesthesia causes hemodynamic changes. To evaluate the cardiovascular effects of the prone position in surgical patients during general anesthesia, we investigated the effects on hemodynamic change of the prone position with the Jackson spinal surgery table. Materials and Methods : Thirty patients undergoing spine surgery in the prone position were randomly selected. After induction of general anesthesia, intra-arterial and central venous pressures (CVP) were monitored and cardiac output was measured by $NICO^{(R)}$. We measured stroke volume, cardiac index, cardiac output, mean arterial pressure, heart rate, CVP and systemic vascular resistance (SVR) before changing the position. The same measurements were performed after changing to the prone position with the patient on the Jackson spinal surgery table. Results : In the prone position, there was a significant reduction in stroke volume, cardiac index and cardiac output. The heart rate, mean arterial pressure and CVP were also decreased in the prone position but not significantly. However, the SVR was increased significantly. Conclusion : The degree of a reduced cardiac index was less on the Jackson spinal surgery table than other conditions of the prone position. The reduced epidural pressure caused by free abdominal movement may decrease intraoperative blood loss. Therefore, the Jackson spinal surgery table provides a convenient and stable method for maintaining patients in the prone position during spinal surgery.