• Title/Summary/Keyword: Expansion Method

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Suggestions for developing Korean Medicine Clinical Practice Guideline for Allergic Rhinitis - Based on 2018 Chinese Clinical Practice Guideline (알레르기 비염 한의표준임상진료지침 방향 제언 - 2018 중국 임상진료지침을 바탕으로)

  • Kang, Jeong-In;Lee, Dong-Hyo
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.32 no.4
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    • pp.130-140
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    • 2019
  • Objective : The purpose of this study is to examine the treatment of allergic rhinitis introduced in the Chinese guideline, and to find out the direction of evidence-establishment and applicability in developing Korean Medicine clinical practice guideline for allergic rhinitis. Method : We studied Traditional Chinese Medicine treatment of allergic rhinitis introduced in the 2018 Chinese society of allergy guidelines for diagnosis and treatment of allergic rhinitis. The treatment are classified into three categories; herbal medicines, acupuncture and the others. And we compared this guidelines with other guidelines for how they differ in description of the database, evidence of level, and strength of recommendation. Results : Herbal medicines are presented based on syndrome differentiation. The basic acupoints for allergic rhinitis are introduced as follows; Fengchi(GB20), Yingxiang(LI20), Feishu(BL13) and Taiyuan(LU9). And in comparison with other guidelines for allergic rhinitis, the Chinese guideline showed lack of description in the database, evidence of level, and strength of recommendation, though they used evidence-based models. Conclusions : Clinical practice guideline projects are also underway in Korea for benefit expansion and improving quality of medical services. It is important to develop guidelines which should be evidence-based and reflect Korean medical environment.

Electrochemical Performance of Micro Sized Silicon/CNT/Carbon Composite as Anode Material for Lithium Ion Batteries (리튬이차전지용 음극활물질로서 Micro sized Silicon/CNT/Carbon 복합입자의 전기화학적 특성)

  • Shin, Min-Seon;Lee, Tae-Min;Lee, Sung-Man
    • Journal of the Korean Electrochemical Society
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    • v.22 no.3
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    • pp.112-121
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    • 2019
  • In this study, silicon / carbon nanotube / carbon composite particles with high capacity were fabricated by using micro-sized silicon particles and carbon nanotubes as an anode material for lithium ion batteries. The silicon / carbon nanotube / carbon composite particles were prepared by spray drying method to prepare spherical composite particles. The composite particles have the network structure of the carbon nanotubes around the silicon particles, in which the silicon particles and the carbon nanotubes are bonded by amorphous carbon. It appears that the volume expansion of silicon is effectively buffered and the electrical contact is maintained in the network structure of the composite particles during charge-discharge cycles.

Variation in the reproductive rate of Trypoxylus dichotomus (Dymastinae: Sacarabaeidae: Coleoptera) by partition

  • Seo, Won-Jun;Park, Sang-Eun;Youn, Young-Nam
    • Korean Journal of Agricultural Science
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    • v.47 no.4
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    • pp.867-884
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    • 2020
  • Trypoxylus dichotomus is highly utilized in the domestic insect industry and bred at many farms nationwide. Recently, the number of farmers has been increasing due to the expansion of its use in food and medicine. However, the traditional breeding methods have high economic costs, which include relatively large breeding boxes, large amounts of sawdust and a 2 to 1 ratio (or higher) of female to male. Thus, it is essential to develop a cost-effective breeding method. In this study, a breeding cage with a partition was designed and used to investigate the reproduction rate of T. dichotomus with only a single pair of male and female insect. According to the investigation, the average number of eggs laid in the un-partitioned breeding cage was 93.6, and 121.3 eggs were laid in the partitioned breeding cage. This result shows that T. dichotomus lays more eggs in the partitioned breeding cage rather than in the un-partitioned breeding cage. In addition, it was found that T. dichotomus tends to lay more eggs in compressed sawdust, which was harder than the common fermented sawdust. Through a wind-tunnel assay, it was shown that the ovipositing female recognizes the eggs and avoids them to disperse their eggs elsewhere. These results indicate that the partitioned breeding cage may increase the hardness of the sawdust, restrict the adult's movement and provide a new place for oviposition for the female, and therefore results in an increased reproduction rate with less cost.

The Chronological Stages of Advanced Online Education (온라인 고등교육의 변화에 대한 단계별 고찰)

  • Kim, Hyunkyung
    • Journal of the Korea Convergence Society
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    • v.11 no.12
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    • pp.105-112
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    • 2020
  • This study categorized the developments of advanced online education in Korea, which have achieved rapid growth for past 20 years, and analyzed the characteristics of each stage. Starting from the introduction stage, which focused on video content and basic LMS, it went through a growth stage in which the transition from lifelong to advanced education institute, and the first online graduate program accreditation were achieved. In the maturity stage, the expansion of online graduate programs led to the spread of online real-time classes and seminars, and the introduction and proliferation of smart-phone also paved the way for smart learning. However, as the non-face-to-face teaching method was suddenly implemented as a whole due to the COVID-19 pandemic, online education has rapidly developed and also faced various problems to improve the quality of education. By analyzing and reviewing the trend, this study discussed the problems facing the current revolutionary period and what needs to be solved for future development.

A Study on the Housing Policies and Design Characteristics of Apartment Remodeling by Comparative Analysis between Korea and France Cases (프랑스와 한국의 리모델링 사례분석을 통한 아파트 계획과 주택정책 비교 연구)

  • Jang, Han-Doo;Je, Hae-Seong
    • Journal of the Architectural Institute of Korea Planning & Design
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    • v.35 no.9
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    • pp.131-142
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    • 2019
  • The purpose of this study was to find out the characteristics of housing policies and apartment designs by comparison of supplying and remodeling apartments between France and Korea. The literature review was used in Korea cases and the literature review, site investigation, and expert interviews were used in France cases. At first, by reviewing the related literatures about the apartment developments and regenerations in France and Korea, twelve remodeling cases were represented respectively in Ile de France and Seoul. As a result, in housing policy, the Korean housing market had a shortage of low-priced houses related to biased apartment developments by private sector dependence. Consequently, the living in Korea generally required the high price in low quality houses. But in France, the housing policies were very successful in housing quantity, quality, and expense. It is involved in balances between the public housing supply and the activation of a private housing market based on the government support policy. Nevertheless, in the success of the apartment as a house type, apartments in France means the social elimination because of the supply method problems and the management failures of HLM institutions. However, in Korea, the apartment implies the successful life of the middle class population because of the competitive evolutions during 40 years as a market housing. Secondly, In the characteristics of remodeling, the remodeling in Korea was for property value improvements. It mainly executed to expand the size of a house by expansion of living space. However the remodeling in France was for social mixes and connections with the surrounding area. It mostly performed by various design methods such as vertical merging houses, partial removal, reconstruction, and construction of a local community centers and mixed-use residential buildings. This study shows the simultaneously remodeling features of those two countries. These findings can be used in developing effective strategies for the public housing regenerations in Korea and other countries.

The Experiences of Virtual Reality-based Simulation in Nursing Students (간호대학생의 가상현실 시뮬레이션 실습 경험)

  • Lee, Soon Hee;Chung, Seung Eun
    • The Journal of the Convergence on Culture Technology
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    • v.7 no.1
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    • pp.151-161
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    • 2021
  • This study is a descriptive qualitative study to understand the virtual reality-based simulation experiences of nursing students. The study recruited 53 students who conducted virtual reality-based simulation while attending the course of Adult Nursing I and II in the third year of the department of nursing at a university. The data was analyzed using a content analysis method from a reflection journal created anonymously by students. The results emerged 5 categories and 12 subcategories. The categories were consisted of "realizing the necessity of nursing competence", "expanding nursing knowledge", "receiving safety psychologically", "thinking focused on problem" and "getting satisfaction". It suggests that virtual reality online program can have a positive effect on thoughts and expansion of knowledge in a safe educational environment. Therefore, it needs to develop various contents for the virtual reality education and training.

A Study on Library Service using Artificial Intelligence: Focused on North American University Libraries (인공지능(AI)을 이용한 도서관서비스 연구 - 북미 대학도서관을 중심으로 -)

  • Kim, Ji-Hyun
    • Journal of Korean Library and Information Science Society
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    • v.51 no.4
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    • pp.231-247
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    • 2020
  • As artificial intelligence (AI) has emerged as a promising future technology among the fourth industrial revolution, we are trying to apply artificial intelligence technology across all area of society, including libraries. This study investigated the effects, issues, and implications of artificial intelligence on university library services. As a research method, in-depth interviews were conducted with IT experts of university libraries in North America, and conclusions and discussion were drawn from interview results and related documents. Research results revealed that university libraries in North America were trying to build an infrastructure that facilitates information access and retrieval based on artificial intelligence systems and to provide new services in collaboration with AI research institutes in universities. This study raised issues regarding the expansion of the role of libraries and librarians, privacy, and data quality. It was also discussed that the need for re-education of university librarians to become software engineers who play a role in disseminating knowledge. In addition, this study suggested the investment for the establishment of the information system and an artificial intelligence research center in the library. The study discussed limitations of research due to changes in the research environment and suggestions for future research.

Study on Improvement Measures of Green Standard for Energy and Environmental Design for Expansion of Applying Green Roof - Focused on LEED in the USA and BREEAM in the UK - (옥상녹화 적용확대를 위한 녹색건축인증제도 개선방안 연구 - 미국 LEED 및 영국 BREEAM의 비교·분석을 중심으로 -)

  • Kim, Ji-Hyeon;Kwon, Hyuck-Sam;Kim, Jung-Gon;Lee, Bum-Sik
    • Journal of the Architectural Institute of Korea Structure & Construction
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    • v.34 no.2
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    • pp.75-82
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    • 2018
  • Green roof in Korea has been recognized as part of landscape area and local governments enacted municipal ordinance for supporting green roof thereby assisting part of expenses spent for green roof within a range of budget for buildings which are eligible for the green roof support of existing buildings. However, it is necessary to enforce a regulation of mandatory green roof for new buildings in order to expand green roof application and provide a variety of assistances such as subsidy payment, tax relief, and mitigation of floor area ratio-related regulation as done in other advanced nations. In particular, LEED(Leadership in Environmental and Energy Design) in the USA applies additional point directly for green roof in terms of the reduction in heat island effects. For example, the following items are beneficial to have additional points: habitat preservation or restoration, external space, rainwater management, reduction in outdoor water usage, minimum energy performance, and optimum energy performance. In addition, the BREEAM(Building Research Establishment Environmental Assessment Method) in the UK specifies green roof as one of assessment items to be complied in terms of diversity of species. As such, LEED and BREEAM reflect direct and indirect effects of green roof on assessment criteria, which suggest a direction to green building certification criteria in Korea where only additional points are given for green roof according to soil depth.

Environmental Accounting of the Total Maximum Daily Loads (TMDL) Program in the Nakdong River Basin using the Emergy Analysis (Emergy 분석을 이용한 낙동강유역의 오염총량관리계획에 대한 환경회계)

  • Kim, Jin Lee;Lee, Su-Woong;Kim, Yong-Seok;Lee, Suk-Mo
    • Journal of Korean Society on Water Environment
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    • v.27 no.3
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    • pp.349-356
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    • 2011
  • This study, which evaluated the contribution of the real economic value and system in the Nakdong River Basin, estimated the emergy analysis for environmental accounting of the TMDL program. And an environmental accounting for TMDL is evaluated before and after adopting TMDL program respectively. The value of emergy after adopting the TMDL was 7.90 E+20 sej/yr. Although the real yield of the river after governmental investment was high (before: 9.7118 E+20 sej/yr and after: 9.7224 E+20 sej/yr), the effects of improvement was not great, in terms of an investment cost. The benefit/cost ratio resulted from environmental accounting has decreased from 1.493 to 1.230 due to the cost of managing treatment facilities. The method of improving water quality in the Nakdong River Basin by the TMDL program should be changed into an ecological treatment facilities using resources efficiently from a control of water quality depending on expansion of the wastewater treatment facilities and advanced treatment plant using high cost and non-renewable energies.

Development of Template Compensation Algorithm for Interoperable Fingerprint Recognition using Taylor Series (테일러시리즈를 이용한 이기종 지문 센서 호환 템플릿 보정 알고리즘 개발)

  • Jang, Ji-Hyeon;Kim, Hak-Il
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.18 no.4
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    • pp.93-102
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    • 2008
  • Fingerprint sensor interoperability refers to the ability of a system to compensate for the variability introduced in the finger data of individual due to the deployment of different sensors. The purpose of this paper is the development of a compensation algorithm by which the interoperability of fingerprint recognition can be improved among various different fingerprint sensors. In this paper we show that a simple transformation derived to form a Taylor series expansion can be used in conjunction with a set of corresponding minutia points to improve the correspondence of finer fingerprint details within a fingerprint image. This is demonstrated by an applying the transformation to a database of fingerprint images and examining the minutiae match scores with and without the transformation. The EER of the proposed method was improved by average 60.94% better than before compensation.