• Journal of the Korean Academy of Esthetic Dentistry
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• v.13 no.1
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• pp.31-39
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• 2004

For the prosthodontic results which are compatible with esthetics to be fulfilled, the first prerequisite would be periodontal intervention and stability, the second one may be functional competency and the ultimate goal should be ascribed to esthetic considerations. Other words, esthetic dentistry is a whole entity which encompasses the biological stability of the periodontium, physical accuracy of the prosthodontic structure and finally, the beauty which can be found in natural dentition. It also implies the harmonized lip line which reveals the well-balanced tooth morphology and health gum profiles (Red-White Esthetics). Largely, there lie some differences in the input system of the 3-dimentional data from the prepared abutments between respective computer-assisted systems available now. But the manufacturing systems (CAM) are very similar between them, to say, comprise numeric control systems with whole 3-dimensional milling units according to the restorations to be made. Now the author is going to present CAD/CAM Zirconia All Ceramic Restoration on the topics for the Red-White Esthetics, periodontal control and maintenance, treatment for the discolored teeth, post & core build-up works for the devitalized teeth, characteristics of the Zirconium oxide All Ceramics, fabrication procedures, clinical considerations and its application to diverse clinical situations.

• The Journal of the Korean dental association
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• v.27 no.1 s.236
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• pp.15-18
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• 1989

"62번 보다는 좀 어둡게" 또는 "62번과 65번 사이 정도로"라는 이러한 지시들이 만족스러운 결과를 가져오는가? "선생님, 제 앞니가 이젠 너무 희고 자연스럽지 않아요. 남들이 보면 해 넣은건지 금방 알아요." Porcelain fused to metal crown은 그 심미적 장점 때문에 전치부 수복에 있어 사용이 보편화되어 왔다. 하지만 두께의 제한과 세련되지 못한 일률적인 수복물은 일반적으로 너무 밝고 흰(높은 명도와 낮은 채도) 까닭에 인공적인 것을 쉽게 식별할 수 있으며, 환자들도 하여금 보다 개성화가 요구되어 오고 있다. 이러한 심미적 요구와 함께 최근 우수한 심미성과 높은 강도의 도재전장관들, 즉 Dircor이나 Cera Pearl, Alumina 또는 Magnesia core porcelain등이 연구 개발되어 왔다. 도재 축성술에 있어서도 내장된 첨색효과(internal characterization)나 다층축성법(layer build up)등 많은 방법들이 발전되어 왔다. 자연스러운 도재관을 재현하여 주기 위해서는 먼저 자연치아의 색조에 관한 치과의사의 충분한 인식과 판단이 앞서야 한다. 인식된 색조에 대한 정보가 체계적으로 기록되어 기공사에게 전달되고 재현되어야 한다.

• Journal of Korea Society of Digital Industry and Information Management
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• v.4 no.3
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• pp.115-126
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• 2008

This thesis is the research for methods to forecast of dynamic changes at retail stores in the ubiquitous era, and, through adopting RFID based technology, to minimize cost of operation of stores and bringing up better customer service. The core methods had been researched and studied are to build future-oriented stores by providing store system with better customer's convenience based on referring to case studies of future-oriented stores and efficient inventory management method enabling more profitable store, and adopting Smart Carts, Smart Shelf and e-POP and environment sensors as a method in order to provide more improved customer service.

• 중국학논총
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• no.65
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• pp.147-165
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• 2020

With a cultural powerhouse in mind, China is trying to spread Chinese culture around the world by promoting Confucius Institutes. Calligraphy is the core of Chinese culture and is the most efficient field of spreading Chinese culture. The forms of calligraphy dissemination at Confucius Institutes were mainly the opening of calligraphy curriculum, calligraphy experience events, and holding calligraphy contests and exhibitions. But these activities are not very professional or organized. Therefore, Confucius Institutes need to come up with more active and aggressive measures. It will have to train professional calligraphy teachers to be sent abroad and build a deeper educational infrastructure by developing calligraphy teaching materials exclusively for use in the country. They should also explore ways to develop calligraphy into a cultural industry brand in many ways. If the Confucius Institutes actively exchanged and promoted themselves with many countries by calligraphy, Chinese calligraphy could be reborn as an art in the world.

• Electronics and Telecommunications Trends
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• v.36 no.2
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• pp.1-11
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• 2021

As sensors such as Inertial Measurement Unit, cameras, and Light Detection and Rangings have become cheaper and smaller, research has been actively conducted to implement functions automating micro aerial vehicles such as multirotor type drones. This would fully enable the autonomous flight of drones in the real world without human intervention. In this article, we present a survey of state-of-the-art development on autonomous drones. To build an autonomous drone, the essential components can be classified into pose estimation, environmental perception, and obstacle-free trajectory generation. To describe the trend, we selected three leading research groups-University of Pennsylvania, ETH Zurich, and Carnegie Mellon University-which have demonstrated impressive experiment results on automating drones using their estimation, perception, and trajectory generation techniques. For each group, we summarize the core of their algorithm and describe how they implemented those in such small-sized drones. Finally, we present our up to date research status on developing an autonomous drone.

• Convergence Security Journal
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• v.7 no.2
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• pp.27-37
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• 2007

Companies have to take agility against change of environment and build up the capacity of new value creation in today's management environment. Until now, there are so many management method for efficiency of management, rationality of management and IT (information technology) supported this method by integration of enterprise task and process automation. but company's competitiveness through the efficiency of management realized the limitations recently. so companies needs the new management method to raise core value of enterprise. This study applies strategy intelligence which is some part of Business Intelligence. We can identify the core value driver by using this method. and the core value driver is connected the KPI (key performance indicator) of processes in BPM (Business Process Management). This help the management of process focused on value driver. and some part of activity driver that effect the process performance can be use the Six Sigma method to strategic business process. This study first introduces the concept of Business Intelligence, Business Process Management and Six Sigma. and then efficient connection plan for value based strategic business process is introduces.

• Progress in Medical Physics
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• v.23 no.3
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• pp.188-198
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• 2012

This study aims to evaluate the accuracy of the collapsed cone convolution (CCC) algorithm for dose calculation in a treatment planning system (TPS), CorePLAN$^{TM}$. We implemented beam models for various setup conditions in TPS and calculated radiation dose using CCC algorithm for 6 MV and 15 MV photon beam in $50{\times}50{\times}50cm^3$ water phantom. Field sizes were $4{\times}4cm^2$, $6{\times}6cm^2$, $10{\times}10cm^2$, $20{\times}20cm^2$, $30{\times}30cm^2$ and $40{\times}40cm^2$ and each case was classified as open beam cases and wedged beam cases, respectively. Generated beam models were evaluated by comparing calculated data and measured data of percent depth dose (PDD) and lateral profile. As a result, PDD showed good agreement within approximately 2% in open beam cases and 3% in wedged beam cases except for build-up region and lateral profile also correspond within approximately 1% in field and 4% in penumbra region. On the other hand, the discrepancies were found approximately 4% in wedged beam cases. This study has demonstrated the accuracy of beam model-based CCC algorithm in CorePLAN$^{TM}$ and the most of results from this study were acceptable according to international standards. Although, the area with large dose difference shown in this study was not significant region in clinical field, the result of our study would open the possibility to apply CorePLAN$^{TM}$ into clinical field.

• Korean Journal of Adult Nursing
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• v.23 no.5
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• pp.503-513
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• 2011

Purpose: The purpose of this study was to identify a model based on f the learning objectives in adult health nursing curriculums. The model can be eventually reflected in Korean National Nurse's Licensing Examination (KNNLE). Methods: The model was developed through a series of practical analysis by the task force team from June to October, 2011. The research team conducted the data synthesis and analysis from the learning objectives of adult health nursing drawn from selected national and international universities, from the adult health nursing areas in KNNLE, and from the current disease prevalence from clinical data in the representative university hospitals in Korea. Results: The current disease prevalence and mortality rates are on the increase especially for malignant neoplasm, heart diseases, suicide and diabetes. The items on the KNNLE of adult nursing are categorized by body systems into digestive system (15%), introduction (13.8%), respiratory system (11.3%), and cardiac system (11.3%). While the current system-based learning objectives covers extensive areas of adult health nursing, the core items are required to be selected based on core competences and core learning objectives to restructure the items of KNNLE. The first revised model is to consolidate and restructure the items microscopically in the subjects of adult health nursing by system. The second proposed model from macroscopic perspective is to build a comprehensive scheme of nursing curriculum by encompassing 8 subjects under current KNNLE and adjust the number of items accordingly. Conclusion: The items of KNNLE need to be gradually redesigned by considering the intervention need at clinical practice and the modified learning objectives of adult health nursing. Based on the job analysis on core competences for newly employed nurses performed by the Korean Accreditation Board of Nursing, it is necessary to establish the core learning objectives of adult health nursing and set up standards for core items in KNNLE.

• The Journal of the Convergence on Culture Technology
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• v.10 no.3
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• pp.451-459
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• 2024

Recently, the size of the online education service market has been growing, but the B2C platform education service market, where companies take the lead in creating content and consumers consume the content, has become widespread. This makes content creation rigid and may have limitations in creating at various levels. This Study newly establishes the concept and type of customer needs, wants, innovation, and platform business, and presents new start-up success factors in all fields of platform business start-up and a standard diagnostic process for the possibility of platform start-up success. Through the presented process, customers, core activities, and value proposition factors can be derived. Finally, a business model for starting a C2C platform for elementary, middle, and high school education is built centered on the business model canvas.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2006.11a
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• pp.602-605
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• 2006

Recently, under recognition that ubiquitous computing is core paradigm to build up a state of new knowledge information and to strengthen the competitiveness of domestic information industry, governments, enterprises, and institutes in United States, Europe, and Japan devote all their energies to develop technologies concerned. In Korea, the government presents ubiquitous technologies as a main part of the next generation growth industry, and also other governmental agencies and enterprises concentrate their energies on early fruition of ubiquitous society. Accordingly, as a foundation research to apply ubiquitous environment which emerged as a next generation high-end telecommunication technology effectively to construction field, this paper will discuss about element technologies to realize changing aspects of construction process under ubiquitous environment and information services by stages.