• Journal of the Korea Convergence Society
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• v.7 no.1
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• pp.17-23
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• 2016

In this paper, we describe a case of utilizing SaaS technology to build NC Post-processor(WBS) based cloud computing. Developed WPS system was implemented to provide stable and continuous system service by utilizing SCoD methodology. WPS is designed user interface module and control engine module. The interface module is downloaded in a client PC and the control engine is installed in cloud parm area. These modules are connected with computer network. WPS was completed a function test for sheet cutting field and mold manufacturing field, and it is processing a commercial service using with improve the user's convenience and adding a bill charge module.

• Journal of the Korea institute for structural maintenance and inspection
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• v.12 no.5
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• pp.91-100
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• 2008

A technique strengthened to the reinforced concrete members using the external post- tensioned method offers the advantages in speed and simplicity of installation over other, established, strengthening techniques. But this technique has many unreasonable facts. This paper are analyzed an unreasonable facts of the previous external post-tension technique. The purpose of this paper proposed Bow system as the new technique strengthened to the reinforced concrete members. The Bow system which is better technique than the previous technique was introduced with the experimental/analytical data.

• The Journal of Korean Academy of Prosthodontics
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• v.52 no.2
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• pp.74-81
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• 2014

Purpose: While studies have examined microleakage in endodontically treated teeth restored with posts, microleakage among post and adhesive systems remains a concern. This study compared the sealing properties of 3 adhesively luted post systems. Materials and methods: Thirty-six endodontically treated permanent maxillary central incisors were divided into 3 groups: Zirconia-glass fiber, Quartz-glass fiber, Polyethylene fiber posts. Post space was prepared and each post was adhesively luted with 3 systems. The specimens were separately immersed in freshly prepared 2% methylene blue solution for 1 week. The cleaned specimens were then embedded in autopolymerizing acrylic resin. The root portion of tooth were horizontally sectioned into three pieces (apical, middle, and coronal portions). An occlusal view of each section was digitally photographed with a stereomicroscope. The methylene blue-infiltrated surface for each specimen was measured. Dye penetration was estimated as the ratio of the methylene blue-infiltrated surface to the total dentin surface. Results: No significant differences were found among post types. The variables of middle section and 3-stage adhesive produced significant differences in microleakage between the following post pairs: zirconia-glass fiber versus quartz-glass fiber, zirconia-glass fiber versus polyethylene fiber, and quartz-glass fiber versus polyethylene fiber (P<.05). There were significant differences between the apical and coronal sections of each post type, and between apical versus middle sections of quarze-glass fiber and polyethylene fiber posts (P<.05). Conclusion: No significant differences were found among post types. The 3-stage adhesive produced significant differences in microleakage between the following post pairs.

• 한국정보교육학회:학술대회논문집
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• 2021.08a
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• pp.283-288
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• 2021

In the COVID-19 situation, digital textbooks have been used in many schools. In order for digital textbooks to become active even in the post COVID-19 era, the functions of digital textbooks must be improved. Digital textbooks are traditional book-type textbooks with glossaries, video materials, and evaluation questions added. Recently, they are being used usefully for practical education by providing realistic contents such as Augmented Reality, Virtual Reality, and 360 images. Therefore, in this study, in order to prepare for the post COVID-19, we found the functional problems of digital textbooks and suggested a way to improve them. First, the layout of digital textbooks should be developed as a responsive layout, deviating from the same form as a book-type textbook. Second, digital textbooks and learning management systems must be integrated. Third, by developing a digital textbook for teachers, teachers should be able to directly reorganize the contents or add external materials. Fourth, learning analysis should be possible using data recorded in digital textbooks. Fifth, in the 2022 revised curriculum, various subjects should be developed as digital textbooks.

• Korean Journal of Childcare and Education
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• v.10 no.4
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• pp.51-69
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• 2014

To investigate the effects of story making activities by utilizing postmodern picture books on young children's creativity and story construction ability, this study targeted 21 five-year-old preschoolers in G daycare center and 18 five-year-old preschoolers in J daycare center located in J Gun, Busan City. 21 young children in G daycare center engaged in story making activities by utilizing postmodern picture books totaling 18 times for 12 weeks, and 18 young children in G daycare center, the comparison group, read postmodern picture books individually in free choice activity time. The results of the study are summarized as follows. Story making activities by utilizing postmodern picture books made statistically more significant progress in the subordinate elements of creativity and all the subordinate elements of story construction ability. That means those activities, by utilizing postmodern picture books, have a positive effect both on the development of young children's creativity and story construction ability.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 1995.04b
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• pp.499-503
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• 1995

VTR은 생산체제에 있었서 대량생산방식을 채택하는 전형적인 제품으로서 그 기구부와 회로부의 설계 및 해석에 관하여 많은 연구가 수행되어왔다. 본 연구에서는 조정공정의 자동화를 위하여 헤드드럼에서의 테이프 변형을 결정하는 요소 p2, p3 포스트의 조정에 관한 연구가 수행되었다. 테이프의 변형을 측정하기 위해서 먼저 테이프 변형의 단순화된 모델이 제안되었으며 영상헤드에 의해 읽혀지는 RF 신호로 부터 테이프의 변형을 측정하는 방법과 테이프 변형으로 부터 p2, p3 포스트의 오조정량을 찾는 신경외로망을 이용한 역모델이 개발되었다.

• Archives of design research
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• v.21
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• pp.15-26
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• 1997

The aim of this study is to suggest a comparative and interpretative study by quantatitative analysis (by applying information value's calculating rule that Shannon has developed) about modem and postmodem ceramics product design centering around form description among many evaluating and analyzing elements by applying analysis model that Hong ik university' professor, Kim Bock Young, has researched and developed

• Proceedings of the Korea Concrete Institute Conference
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• 2004.11a
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• pp.69-72
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• 2004

• The monthly packaging world
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• s.364
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• pp.79-84
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• 2023

• Proceedings of the Korea Concrete Institute Conference
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• 2010.05a
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• pp.17-18
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• 2010

This study was conducted to develop the design guide of PTCP (Post Tensioned Concrete Pavement). The behavior of PTCP was investigated by performing structural analyses and field experiments. Based on the results, the PTCP design guide was developed by determining the size of concrete slab, design environmental and vehicle loads, and amount and method of longitudinal and transverse tensioning.