• Proceedings of the Korean Society of Precision Engineering Conference
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• 1995.04a
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• pp.559-564
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• 1995

Feature based design approach is widely studied for the application of mechanical part design and process planning. Mechanical parts are associated with volumetric form features in nature. Therfore, one of the important characteristics that reside in the form feature research until now is that features have been studied in connection with CAPP for material removal. We studied the application of feature based design for ship structure design. Ship structure has interesting nature that tis distinct from mechanical parts. Among these are multiple cell structure, non-volumetric part and production by welding or assembling. An idea of applying feature based design paradigm for design, process planning, cost analysis and engineering calculation was shown. Non-manifold geometric modeler ACIS was adopted to fully benefit from the non-manifold nature of ship structure.

• Proceedings of the KIPE Conference
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• 1999.07a
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• pp.41-44
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• 1999

The main purpose of the UPS is to supply independent and stable power to connected equipment. In installing and operating the UPS system, songle module, three phase UPS in more benefit than multi module, songle phase UPS in the point of volume and cost. However, when supplying Rectifier with output power form three phase UPS, by connecting auto-transformer, occurred harmonic and ripple current makes output filter damaged and leads to nonlinear current coasted by unbalance load. Therefor, in this paper the aim of concentring compound-wound transformer and harmonic filter is supplying liner current by reducing harmonic and ripple current and improving unbalance in voltage and distortion in current wave.

• International Journal of Internet, Broadcasting and Communication
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• v.10 no.4
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• pp.50-64
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• 2018

This paper describes a visual object detection approach utilizing ensemble based machine learning. Object detection methods employing 1D features have the benefit of fast calculation speed. However, for real image with complex background, detection accuracy and performance are degraded. In this paper, we propose an ensemble learning algorithm that combines a 1D feature classifier and 2D DNF (Disjunctive Normal Form) classifier to improve the object detection performance in a single input image. Also, to improve the computing efficiency and accuracy, we propose a feature selecting method to reduce the computing time and ensemble algorithm by combining the 1D features and 2D DNF features. In the verification experiments, we selected the Haar-like feature as the 1D image descriptor, and demonstrated the performance of the algorithm on a few datasets such as face and vehicle.

• Progress in Medical Physics
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• v.29 no.1
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• pp.23-28
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• 2018

The purpose of this study is to build a database of patient information for efficient radiotherapy management. Microsoft Office Access was used to build the database owing to its convenience and compatibility. The most important aspect when building the patient database is to make the input and management of patient information efficient at every step of radiotherapy process. The information input starts from the patient's first visit to the radiation therapy department and ends upon completion of the radiotherapy. The forms for each step of radiotherapy process include the patient information form, the radiotherapy schedule form, the radiotherapy information form, the simulation order form, and the patient history form. Every form is centrically connected to the radiation oncology department's patient information form. A test revealed that the database was found to be efficient in managing patient information at each step. An important benefit of this database is improved efficiency in radiotherapy management. Information on patients who received radiotherapy is stored in a database. This means that this clinical data can be found easily and used in future, which will be helpful in research studies on the radiation oncology department. Benefits such as these will potentially contribute to improved radiotherapy quality.

• Journal of KIBIM
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• v.8 no.2
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• pp.29-40
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• 2018

Recently, the free-form buildings are continuously increasing in the world. However, due to the shortage of experience and technology in the project of the free-form buildings, problems such as increase of construction cost, increase of air and deterioration of construction quality are occurring. In this study, data on the 27 free-form projects in Korea and abroad using digital fabrication were collected through the journals, reports, articles, and websites of the institutes and case studies were conducted based on the collected data. Based on the following case analysis, we conducted evaluation of case data analysis based on the knowledge domain specified in PMBOK. Evaluation of case data analysis shows that the application of digital fabrication is divided into positive and negative effects for each knowledge area in the free-form building project. Using the results of the analysis, we can confirm the knowledge field showing the positive effect on the free-form building project by using digital fabrication. However, the data scale of the project using the digital fabrication is not realized at present and research is insufficient. In Korea, a small number of specialists were interviewed and verified because experts do not exist much in korea. Therefore, this study is expected to suggest the necessity of applying digital fabrication in the free-form building projects in the construction industry.

• The Journal of Fisheries Business Administration
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• v.13 no.2
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• pp.31-48
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• 1982

Though modern banking organs were established in Korea with the Kanghwa Treaty as a momentum, the benefit of financing at that time, which was mainly given to merchants and industrialists and traders, was extremely limited to the fishermen. The fishermen who were out of favor with the benefit of financing of modern banking organs were forced to rely on high interest loans, a category of usury capital, issued by the middlemen (the Kaekju) who lent them the deficit of their necessary funds. The fact was that in the field of fisheries the middlemen who issued usury capital played the leading part in fisheries financing of the Late Yi Dynasty. The middlemen, however, sqeezed a part or all of surplus products and on occasion even necessary products out of the fishermen by means of outward compulsion of economy. Moreover they put the fishermen further in trouble by putting-out system. In order to keep on with the production of aquatic products, the fishermen with little capital and no property established the antinomic rotations with the middlemen whose disadvantageous terms they were inevitably to accept. Thus the middlemen who did business with the fishermen exercised their authority over them, securing a strong activity foundation in the field of fisheries. But the traditional form of the Kaekiu was transformed and gradually declined in the field of fisheries according as the market rules were proclaimed in 1914.

• The Journal of Korean Medicine
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• v.35 no.1
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• pp.99-113
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• 2014

Objectives: To provide theoretical basis for the classification of medicinal moxibustion(藥灸劑) in Health Insurance Medical Benefit in Korea through investigating trend of judicial precedents on indirect moxibustion and usage of medicinal moxibustion in "Donguibogam". Methods: We analyzed statistical data of moxibustion from Health Insurance Review & Assessment Service and National Health Insurance Statistical Yearbook. We investigated major judicial precedents on indirect moxibustion to find out some trend and we searched the usages of medicinal moxibustion in "ZhenJiuDaCheng" and "Donguibogam". Results: According to recent judicial precedents, indirect moxibustion with equipment is no loner regarded as Korean Medical Procedure. In composition of 'Oriental Health Treatment', amount for acupuncture has gradually decreased instead, amount for moxibustion has increased steadily for 5 years. Medicinal moxibustion(藥灸劑) is often used as a form of indirect medicinal moxibustion with moxa in "Donguibogam". Argyi Folium, Moschus, Natrii Chloridium, Radix Preparata, Realgar and Olibanum are most frequently used for medicinal moxibustion in "Donguibogam". Medicinal moxibustions are composed of simple prescription or herb-pair or multiple prescription in "Donguibogam". Conclusions: In Health Insurance Medical Benefit in Korea, under the division of moxibustion, direct medicinal moxibustion and indirect medicinal moxibustion should be classified in addition.

• The Journal of Information Systems
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• v.24 no.4
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• pp.1-19
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• 2015

Purpose Co-creation is a form of collaboration to create joint values with participation of diverse interested parties. It has been introduced by large companies at an early stage and due to changes in management environment, the scope of its concept has been expanding to the SMM(Small and Medium Manufactures). The objective of this study is to examine the impact of Co-creation on SMM's non-financial and financial performance. Design/methodology/approach Based on literature review, the research model was developed. To test this research model, we collected 188 questionnaires with SMM which utilized Co-creation and supplied parts to the companies. The t-test and ANOVA were employed for the analysis of data Findings The research result showed that the difference in business performance between the groups with much use of Co-creation and those with little use of Co-creation, there was significant difference in both non-financial and financial performance. In addition, non-financial and financial performance were different among four implementation behavior of Co-creation including Common value, Information share, Risk benefit, and Mutual benefit.

• Journal of Technologic Dentistry
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• v.40 no.2
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• pp.73-82
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• 2018

Purpose: The purpose of this study was to investigate the production environment of crown prosthesis for National Health Insurance(NHI) benefit. Methods: This study carried out self-administered questionnaire survey from September 1, 2016 to October 31 by having research subjects as 261 dental technician. Except 100 copies with incomplete response, 161 copies were used as the materials of final analysis. Results: Unlike gold crowns, the material cost of metal crowns was paid at the dental laboratory(86.3%). Total material consumption for making metal crown was more than gold crown(63.4%), especially for the finishing and polishing processes(78.3%). The subjects responded that a routine dental laboratory fee of crown prosthesis is unreasonable, and it is necessary to adjust and improve it(metal crown 96.2%, gold crown 96.9%). NHI coverage dental prosthesis was not marked on the order form(46.0%), and the dental laboratory fee of that was nor received(64.0%). Conclusion : It is necessary to estimate the NHI cost level of the crown prosthesis by reflecting the production environment and engineering process in dental laboratories. In addition, institutional arrangement should be backed up so that dental laboratories can receive appropriate dental laboratory fee.

• Korean Journal of Adult Nursing
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• v.14 no.4
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• pp.581-590
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• 2002

Purpose: The purpose of this correlational study was to identify relationships among job stress, health beliefs and health behaviors of aircrews and contributing factors to aircrew's health promoting behaviors. Method: Two-hundred twenty-four aircrew members completed questionnaires. The questionnaires were composed of a demographic form, health behavior scale, self-efficacy scale, perceived benefit scale, perceived barrier scale, job demand scale, and latitude scale. Result: The subject's health behavior has shown significant correlations with self-efficacy, benefit, and barrier. Significant negative correlations were found between job stress and self-efficacy. Relationships between job stress and barriers were also statistically significant. In demographic features, statistically significant difference were found between subject's rank and job stress score. Also, there was a significant difference between health behavior and the subject's age. Conclusion: Future efforts should focus on the development of a program to consider aircrew's perceived benefits, perceived barriers and self-efficacy to the compliance of health promoting behaviors.