위와 십이지장의 용종양 (茸腫樣) 종비 203병소에 대한 임상적 관찰

최재현,유호상,현진해,설익주 대한소화기내시경학회 1984 Clinical Endoscopy Vol.4 No.1

OSGi 서비스의 효과적인 외부연동을 위한 자바원격서비스호출 프레임워크

최재현,박제원,이남용,Choi, Jae-Hyun,Park, Jae-Won,Lee, Nam-Yong 한국정보처리학회 2009 정보처리학회논문지D Vol.16 No.6

Recently, many researches focus on Ubiquitous Network which comprised various networks for effective service provision. In particular, OSGi proposed by OSGi Alliance is preferred for core infrastructure to establish Ubiquitous Network as it supports integration and inter-operation among various service environments, and dynamic configuration of services. However, OSGi is limited to be used only within local service framework, since OSGi specification does not have any considerations for inter-operations between internal and external services. Thus, in this paper we propose JARSIO(JAva Remote Service Invocation for OSGi) framework which enables the inter-operations of dynamic internal OSGi services and other external services. The proposed framework is based on the TCP/IP protocol, and provides effective mechanisms for the inter-operations of the services. 최근 다양한 네트워크 기술들을 통합하고 하나의 단일화된 유비쿼터스 네트워크를 형성하여 사용자에게 효과적으로 서비스를 제공하려는 기술적 시도들이 많이 이루어지고 있다. 특히, OSGi Alliance에서 제안된 OSGi는 자바기술을 기반으로 서비스의 동적 재구성을 지원함으로써 다양한 미들웨어 환경 사이에서 서비스간의 상호연동 및 유비쿼터스 네트워크 구성을 위한 핵심 인프라로서 많이 활용되고 있다. 그러나 현재 OSGi 표준에서는 내부에 등록된 서비스를 외부환경에서 공개(publish)하고 호출 및 연동하기 위한 메커니즘을 정의하고 있지 않아, 분산 환경에서 효율적인 서비스의 동적 재구성 및 협업을 달성하는 데에 다소 어려움이 있다. 따라서 본 논문에서는 OSGi 환경에서 등록된 서비스들의 효율적인 서비스의 공개 및 연동을 위한 JARSIO(JAva Remote Service Invocation for OSGi) 프레임워크를 제안한다. JARSIO는 TCP/IP 통신을 기반으로, OSGi 환경에서 동적으로 재구성되는 다양한 서비스들을 원격지에서 자유롭게 호출 및 연동 가능할 수 있도록 지원한다.

소말리아 삼호주얼리호 구출작전 - “석 선장님, 파이팅!”

최재현 관훈클럽 2011 관훈저널 Vol.- No.118

UX(User Experience)와 산업공학

최재현 대한산업공학회 2012 ie 매거진 Vol.19 No.1

궤양성 대장염 39예에 대한 임상적 고찰

최재현,현진해 대한소화기학회 1992 대한소화기학회지 Vol.24 No.3

Ulcerative colitis is a chronic inflammatory disease of colon, which is common in western countries but rare in Korea, As the colonoscopic examination becomes popular, early detection rate is increasing in oriental countries, but its precise clinical aspects are still obscure in Korea due to rarity. To observe clinical aspects of ulcerative colitis in Korea, we studied 39 cases, which were diagnosed by clinical findings, laboratory examinations barium enema and follaw up colonoscopic examination. We performed colonoscopic examination on every patient at least 3 times during over 6 months from 1981 to 1991. The results were as follows: 1) 30cases (76.9%) were distributed in 2nd.-4th. decade and male to feamle sex ratio was 1: 1.2. 2) Among clinical manifestations, colonic symytoms were diarrhea 94.8%, bloody stool 84.6% and abdominal pain 71.8%. Systemic symptoms were weight loss 25.6%, symptoms of anemia 10.3% and fever 2.6%. Severity of clinical manifestations was correlated with colonascopic grade. Extra-colonic manifestations were severe neurosis 10.3%, keratitis 2.6%, and renal stone 2.6%. 3) We found no relationship between duration and extent of disease. 4) In clinical laboratory, anemla, increased erythrocyte sedimentation rate, and hypoalbuminemia were correlated with colonoscopic grade. 5) In detection of ulcerative proctosigmoiditis, barium enema showed a limited capacity, but colonoscopic examination was valuable. 6) All of 39 cases were responded to medical therapy with oral sulfasalazine and/or oral prednisolone in 3 months but relapsed in 94.8% within 2 years without extention of lesion or malignant change.

미얀마 작가 떼잉페밍의 단편 소설 연구

최재현 한국외국어대학교 동남아연구소 2009 東南亞硏究 Vol.19 No.1

Thein Hpei Myint was the writer who had played a pivotal role in the Myanmar modern literature world. He had written both long novels and short novels. And Thein Hpei Myint was a representative resistance writer of anti-fascism people’s literature of Myanmar. He was a political novelist as well as a politician. He wrote four works which can be called anti-fascism literature. They are 『What happened in Burma』 a review published in 1943, 『Over the ashes』 a drama in 1945, 『The wartime traveller』 accounts in 1950-1955, 『As sure as the sun rising in the east』 a long novel in 1953-1957. His thoughts and actions about anti-fascism are identified through these four works. In particular, 『As sure as the sun rising in the east』, the representative work of Thein Hpei Myint, which was based on his idea and activity about anti-fascism, described anti-fascism as a personal experience through the inner description of an ordinary youth. The literary style of Thein Hpei Myintin in the aspect of contents is the anti-fascism resistance literature. This is his greatest literary character.

Global Grain Price Transmission to Korean Agricultural and Food Prices

최재현,한두봉 한국농업경제학회 2017 農業經濟硏究 Vol.58 No.3

This study examines the price transmission of global grain prices on Korean agricultural and food markets. Furthermore, it tests the structural break points of global grain prices and analyzes whether their impact changes before and after the global financial crisis and agflation. The results are as follows. First, the structural break of global grain prices was found in May 2007. Second, causal relationships between global grain prices and domestic agricultural and food prices were also changed after the global financial crisis and agflation. Third, a significant price transmission from global soybeans price to domestic soybean price was observed only after 2007. Meanwhile, domestic wheat prices show significant price transmissions following the changes in global wheat prices in both periods. Fourth, the price transmission of global grain prices on domestic processed food prices was significant both before and after 2007. Lastly, an asymmetric price transmission between global and domestic prices was found only before 2007.

표적위치식별 신관센서 송수신장치 설계에 관한 연구

최재현 한국군사과학기술학회 2002 한국군사과학기술학회지 Vol.5 No.2

In this paper, a study on the design of the transmitter-receiver of fuze sensor for discriminating target position is presented. We propose the algorithm for detecting target distance/direction through investigating the operational concept and principle of fuze sensor. Based on the algorithm, We design transmitter-receiver, calculate various design variables and estimate the performance of that one. The estimated result shows that the required performance of fuze sensor is satisfied. Further research on confirming the performance of proposed algorithm through encounter simulation test with real target and resolving problem will be continued.

방향 탐지용 전파형 대공 근접 신관센서

최재현,이석우,안지연,염경환,Choi, Jae-Hyun,Lee, Seok-Woo,An, Ji-Yeon,Yeom, Kyung-Whan 한국군사과학기술학회 2013 한국군사과학기술학회지 Vol.16 No.5

This paper presents the direction finding proximity fuze sensor using the clutter rejection method and the adaptive target detection algorithm for anti-air missiles. To remove effects by clutter and detect a target accurately, the clutter rejection method of Legendre sequence with BPSK(Bi phase Shift Keying) modulation has been proposed and the Doppler signal which has cross correlation characteristics is obtained from reflected target signals. Considering the change of the Doppler signal, the adaptive target detection algorithm has been developed and the direction finding algorithm has been fulfilled by comparing received powers from adjacent three receiving antennas. The encounter simulation test apparatus was made to collect and analyze reflected signal and test results showed that the -10 dBsm target was detected over 10 meters and the target with mesh clutter was detected and direction was distinguished definitely.

Statistical Analysis of Construction Productivity for Highway Pavement Operations

최재현,류한국 대한토목학회 2015 KSCE JOURNAL OF CIVIL ENGINEERING Vol.19 No.5

Highway pavement operations were generally known as a collection of repetitive and equipment-intensive activities with lower variability in its daily productivity. However, previous research showed that the pavement operation was still vulnerable to the external factors that influenced productivity. The purpose of this study was to statistically analyze the factors that affected pavement operation in order to verify the cause-and-effect of those factors. The researchers selected four highway construction projects to collect productivity data from and evaluated the effect of various interference factors on productivity. Correlation analyses were performed to verify the effect of inclement weather conditions and prerequisite work on the pavement crews’ performance. It was verified that any type of interference lowered productivity and the effects became severe if multiple interference factors occurred on a single workday. Industry practitioners needed to make an informed decision to avoid interference by recognizing the causes and effects of the interference factors and to reduce risks associated with the factors that negatively affected productivity.