• The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
• /
• v.17 no.3
• /
• pp.114-119
• /
• 2004

Background: Atopic dermatitis is chronic exzemaous dermatosis characterized by severe itching, licalized eruption and chronic relapsing progress and has familu history of atopic diseases and hereditary disposition. This Study is attempted in order to estimate of possibility of oriental treatment on atopic dermatitis. Objective: We studied 24 years old women with atopic dermatitis from June 2004 to July 2004 Method: We treated her with herb medication and used three index to assess the severity of atopic dermatitis. Results: Each index show us about 50-60$\%$ of improvement Conclusion: On the basis of this study, It should be considered that treatment of atopic dermatitis should be focused on fever of yang-ming.

• The Journal of Korean Medical History
• /
• v.17 no.1
• /
• pp.3-29
• /
• 2004

This study is on the philosophy and medical science of Lee Gyu Jun, who is the author of SoMunDaeYo and UiGamJungMa. Lee Gyu Jun proposed that Providence is made of Ki, and the Pure Good of Ki is the composing principle of the universe. The Ki could be Pure Good because it embraces Reason of Law inside itself, as a part of itself. This developed as a result of absorbing the ideas from Han and Tang Dynasty's' Ki-Philosophy trend, the latter half of the Joseon Dynasty's Heart Nature Doctrine centered Ri(理:reason)-Monism trend, and Sim (心:heart) centered teachings of Wang Yang Ming, etc. Later, his philosophical Ki-Monism(氣一元 GiIlWon) and SimAngKiReon(心陽氣論) appears exactly in medical science and continues on to Ki-Monism(氣一元 GiIlWon) and SimHwaReon(心火論).

• 한국정보디스플레이학회:학술대회논문집
• /
• 2009.10a
• /
• pp.72-75
• /
• 2009

In this paper, we have designed a novel lens for LED's package that can expend the radiation angle of LED from $120^{\circ}$ to $170^{\circ}$ successfully. At the same brightness and uniformity condition of 37" LED BLU system, using novel lens LED package can be reduced amounts of LED 40% or thickness of BLU 30% respectively. Besides, the power consumption of BLU also can be reduced 25%.

• Proceedings of the KIPE Conference
• /
• 2013.07a
• /
• pp.76-77
• /
• 2013

최근 풍력발전등의 분산전원 설치가 많아짐에 따라 계통연계 인터페이스 필터에 대한 연구가 활발히 진행되고 있다. 이러한 인터페이스 필터는 LCL 필터인 경우가 대다수인데 그 제작과 설치 비용이 만만치않음이 현실이다. 그 중 코어와 코일의 복합체인 인덕터의 설치에 노력과 비용이 가장 크게 들어간다고 볼 수 있다. 본 논문은 최근의 하이브리드 타입의 코어에 착안하여 인덕터 설계에 있어서 페라이트/더스트코어 혹은 하이브리드타입 코어를 인입쪽의 인덕터(L1)요소로 하고 계통 인출쪽 인덕터(L2)를 규소강판으로 하는 혼합형 LCL 필터를 제안한다. 인입쪽의 L1C필터는 LPF로 작동하므로 L2를 저주파수용 규소강판으로 설계하여 결과적으로 비용을 저감함이 본 논문의 초점이다. 그 효과는 선형 재질을 사용한 PSIM 시스템 시뮬레이터를 활용하여 검증한다.

• Journal of Microbiology
• /
• v.45 no.4
• /
• pp.367-370
• /
• 2007

Microbial diversity in decaying maize stalk was characterized by constructing and analyzing rRNA gene clone library. Total 47 OTUs were obtained from 82 bacterial clones, including Proteobacteria (64.6%), Actinobacteria (30.5%), Bacteroidetes (2.4%) and Firmicutes (2.4%). Most proteobacterial clones were members of Rhizobium, Pseudomonas and Stenotrophomonas. Eighty-four percent of Actinobacteria was related to Microbacterium. Only 14 OTUs were identified from 124 fungal clones, including Ascomycota (88%) and Basidiomycota (12%). Sixty percent of Ascomycota were members of Eupenicillium and Paecilomyces but all Basidiomycota were close to Kurtzmanomyces nectairei.

• The Journal of Korean Medical History
• /
• v.18 no.1
• /
• pp.49-63
• /
• 2005

Man-Byeong-Hoi-Chun(萬病回春) is the principal book of Gong Tingxian who was a physician in the time of Ming(明) dynasty. It has been widely used in Korea and Japan. We recently analyzed the case reports in the book and found that he made some prescriptions by day and night separately. The method was based on the Jo-Seok-Bo-Beop(朝夕補法) by 薛己. We thought that it was an important key to his ideas in medicine. So we reviewed the origin and the basic principles of Jo-Seok-Bo-Beop and considered the clinical usages.

• Journal of Communications and Networks
• /
• v.5 no.1
• /
• pp.82-89
• /
• 2003

In this paper, an efficient threshold-based filtering (TF) buffer management scheme is proposed. The TF is capable of minimizing the overall loss performance and improving the fairness of buffer usage in a shared buffer packet switch. The TF consists of two mechanisms. One mechanism is to classify the output ports as sctive or inactive by comparing their queue lengths with a dedicated buffer allocation factor. The other mechanism is to filter the arrival packets of inactive output ports when the total queue length exceeds a threshold value. A theoretical queuing model of TF is formulated and resolved for the overall packet loss probability. Computer simulations are used to compare the overall loss performance of TF, dynamic threshold (DT), static threshold (ST) and pushout (PO). We find that TF scheme is more robust against dynamic traffic variations than DT and ST. Also, although the over-all loss performance between TF and PO are close to each other, the implementation of TF is much simpler than the PO.

• International Journal of Aeronautical and Space Sciences
• /
• v.18 no.3
• /
• pp.522-534
• /
• 2017

According to the characteristics of salvo attack for the multiple flight vehicles (MFV), the design of cooperative guidance law can be converted into the consensus problem of multi-vehicle system through the concept of multi-agent cooperative control. The flight vehicles can be divided into leader and followers depending on different functions, and the flight conditions of leader are independent of the ones of followers. The consensus problem of leader-follower multi-vehicle system is researched by graph theory, and the consensus protocol is also presented. Meanwhile, the finite time guidance law is designed for the flight vehicles via the finite time control method, and the system stability is also analyzed. Whereby, the guidance law can guarantee the line of sight (LOS) angular rates converge to zero in finite time, and hence the cooperative attack of the MFV can be realized. The effectiveness of the designed cooperative guidance method is validated through the simulation with a stationary target and a moving target, respectively.

• Journal of Electrical Engineering and Technology
• /
• v.9 no.2
• /
• pp.670-676
• /
• 2014

The objective of this research is to utilize the ultrasonic method to analyze the property of partial discharge (PD) which is generated by the winding of the insulation stator in the generator. Therefore, a PD measurement system is built based on ultrasonic and virtual instruments. Three types of PD models (internal PD model, surface PD model and slot PD model) have been constructed. With the analysis of these experimental results, this research has identified the ultrasonic signals of the discharges which were produced by three types of PD models. This analysis shows the different features among these PD types. Both the time domain and frequency domain of the ultrasonic signals are obviously different. In addition, an experiment based on a large rotating machine has been done to analyze ultrasonic noises. The result indicates that the ultrasonic noises can be wiped off by the filters and algorithms. The application of this system is convenient for the detection of early signs of insulation failure, which is an effective method for diagnosis of insulation faults.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2019.10a
• /
• pp.228-230
• /
• 2019

일상생활에서 빈번히 사용되는 주변 생활 제품은 기술의 급속한 발전과 더불어 지능화 정도가 가속화 되고 있는 추세에 있다. 일반적으로 LED 조명이나 실내 에어컨을 자동으로 조정하거나 자동청소로봇 등은 이미 일반화된 제품들이다. 그럼에도 불구하고 우리 생활에서 가장 필요한 용품인 거울에 대한 지능적인 제품은 비교적 고가이어서 소비자가 쉽게 접근하기 어려운 생활용품이 되고 있어서 지능화 제품의 보급이 더딘편이다. 따라서 본 논문에서는 Raspberry Pi 3B+ 를 기반으로 하여 음성제어가 가능한 스마트 미러를 설계하고 구현하였다. 이를 위하여 저렴한 raspberry pi의 WiFi를 통해 네트워크에 연결하도록 하여 미러가 시간, 날씨 및 뉴스 정보 기능을 자동으로 업데이트 할 수 있도록 하였고 기상 조건, 사전 시간 또는 음악 재생과 같은 음성 제어가 가능하기 위하도록 Google Asistant 음성 인터페이스를 적용하였다. 본 논문에서 제안한 제품이 실용화될 경우 저가이면서 고기능 사양을 제공하고 있어서 스마트 미러 보급에 많은 기여가 예산된다.