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      • 文人畵家 凌壺觀 李麟祥의 삶과 繪畵 硏究

        이경례 全北大學校 2003 국내석사

        RANK : 247757

        In the history of Korean painting, the most Korean and national painting style was gathering strength in the late Chosun Dynasty. In the painting trends, Julpa(浙派 ), which had been popular since Song Dynasty, faded away, while Muninwha (a painting in the literary artist's style) or Namjongwha (a Chinese painting style like Muninwha) became popular. Jinkyungsansu (A painting of real scenery) and Pungsokwha (a painting of ordinary people's life) began on the grounds of Namjongwha. Influenced by the western style of painting, many painters of the literary artists' style, who were good at poetry, calligraphy and painting, were outstanding in painting. Of them, Lee In-sang(凌壺觀 李麟祥, 1710-1760) was the most influential. Lee In-sang, a forerunner of the intellectuals in the late 18th century in Chosun, succeeded in practicing his ideal painting theory, the harmony of painting and calligraphy. Despite the handicap of being born out of wedlock, he got over all the social and status discrimination, recognized artistic tastes as a man of letters, and reached his own unique world of painting. His early works seem to be influenced by the Chinese painters of Namjongwha, especially Ahn-whui(安徽, a painter of the late Ming Dynasty. After he quitted the government service, in his late painting he expressed the hermit's emotions and painted the pictures of a life in seclusion. A seclusive life was a major painting material, which came naturally from his own living as a man of letters. His favorite painting materials such as pine trees, Japanese apricots, chrysanthemums, and orchids stand for a determined man of letters. And the paintings of waterfalls and pavilions show the essence of Muninwha Lee In-sang practiced the ideals of Muninwha, influenced by Namjongwha, in his painting style. And he tried to live an ideal life of a Seonbi, a Korean tradition scholar with knowledge and culture. Seolsongdo and Songhakwanpokdo are among his greatest works of Muninwha. The purpose of this thesis is to study his life, the beginning and development of Muninwha and the characteristics of Muninwha in the late Chosun. In chapter II, it is surveyed his painting background, in chapter III, IV his life and his view of painting, in V the classification of his works, and in VI his influence on the painting of the late Chosun and his followers like Lee Yun-yeong(李胤永), Yun Jae-hong(尹濟弘). Their painting style seemed to form a trend of Muninwha in the late Chosun. As surveyed, Lee In-sang's peculiar painting style has influenced his contemporary and following painters and he firmly stood in the history of the late Chosun painting.

      • SM20C鋼의 應力과 變形時效處理時 引張特性의 效果에 關한 硏究

        이인상 檀國大學校 1982 국내석사

        RANK : 247631

        The stress ageing treatment is one of the ageing treatment by adding the stress on the material within the elastic region for predetermined periods of time under the applied temperture and the Pre-stress condition. And the strain ageing treatment method is to form the increment of strength on the material by ageing under the pre-strain condition. In this study, the stress ageing treatment is done on the heattreated specimen, SM 20C steel, and the mechnical properties under the vairous treatment conditions are examined. Form the experimental work, the following results are made. 1)The governing factors of stress and strain ageing treatment are the applied stress, time and temperature. 2)The applied stress are 46.1 kg/mm^2, 50.2 kg/mm^2 and 52.7 kg/mm^2 3)The treated temperature and time are 200℃, 250℃, 300℃, 350℃,400℃ and 30 minutes and 60 minutes. 4)The optimum values of the factors are 50.2 kg/mm^2, 30 Minutes and 350℃. 5)The yield stress is increased from 91.9 kg/mm^2 to 186.19 kg/mm^2 under the optimum ageing condition, and the increased percentage is 102%. The elongation is reduced, and reduction of area is also decreased. The effect of strain and stress ageing treatment on the steel is analized, and the structure of the steel is also examined.

      • 모바일 서비스 운영을 위한 보안적 방법 연구

        이인상 건국대학교 정보통신대학원 2016 국내석사

        RANK : 247631

        모바일 서비스 운영을 위한 보안적 방법 연구 최근 모바일 기기의 발전으로 인하여 기업 및 기관에 스마트폰 기반의모바일 서비스의도입이 빠르게 확산되고 있다. 기업 및 기관 에서 모바일 기기의 도입으로 업무의 편의성 및 효율은 증대 되지만 그로 인한 보안 취악성의 증가로 인하여 정보유출의 위협이 높아지고 있다, 논 논문에서는 “모바일 서비스 운용을 위한 보안 방법”에 관한 연구를 통하여 모바일서비스 를 도입하려는 기업 및 기관의 보안환경에 적합한 유형을 선택하여 방향을 제시하고자 한다. 본 논문에서는 스마트폰 기반의 모바일서비스 환경을 구축과 운용할 경우에 모바일 단말(스마트 기기) 에서부터 서버에 이르기 까지의 보안을 강화하는 방안을 연구한다. 모바일 서비스의 정당한 사용자의 접근만을 허용하는 인증 프로토콜의 연구 및 스마트폰 분실이나 악성코드에 의한 해킹으로부터 중요문서의 내용의 보안방식에 중점을 두고 연구를 진행하였다. 모바일 시스템에서 안전하게 회사의 보안 문서를 외부에서도 접근 할 수 있도록 서버에 접근이 가능한 스마트폰을 사전 등록하는 방식을 안한다. 또한 사전에 등록이된 스마트폰이 모바일 서버에 접근 하고자 할 때,정당한 스마트폰 여부를 확인하는 인증 방식 연구하였다. 인증이 정상적으로 되었다하더라도 휴대성과 이동성 특징을 가지는 스마트폰의 특성을 고려할 때,네트워크 보안에 취약점이 많은 모바일 환경에서 문서의 보안 방식은 암호화를 선택하였다. Due to the recent development of mobile devices, the introduction of smartphone-based mobile services to companies and organizations are rapidly spreading. Convenience and efficiency of business with the introduction of mobile devices in companies and institutions are increasing, but the resulting security taken due to the increase in malware is the threat of information leakage increases, the non-thesis research on "security measures for mobile service operations" by selecting the appropriate type in the security environment of enterprises and institutions to introduce mobile services to provide direction. In this paper, we study how to strengthen the security of the server, ranging from mobile devices (smart devices) when establishing and operating a smartphone-based mobile services environment. With an emphasis on how the information security of important documents from the study and smart phone is lost or hacked by malicious code in an authentication protocol that allows only legitimate users of access to mobile services conducted a study. It proposes a method of pre-registering the smart phone can access the server to be accessed from outside the company's security article secured to the mobile office system. In addition, when the smartphone is registered in advance you want to access a mobile server, and authentication method to determine the fair study whether smartphone. Even if authentication has been properly considering the characteristics of a smartphone with the portability and mobility features, and security of documents in this way more mobile vulnerabilities in network security environment was selected for encryption.

      • 더블 포토다이오드를 이용한 링거액 감지기 및 송·수신기 설계에 관한 연구

        이인상 전북대학교 일반대학원 2016 국내석사

        RANK : 247631

        In this paper a Study on Ringer's Solution detection and transceiver design using the double photodiode is to be performed. If the ringer’s solution is completely exhausted or not injected in a normal way, the double photodiode-applied ringer’s solution detectors it immediately and alerts patients or caretakers with a warning light, etc. In this manner, the detector notifies the time of ringer’s solution removal and exchange more conveniently. It also prevents blood from flowing backward into an emptied container without ringer’s solution, easing the fear of patients over potential blood backward flow. The ringer’s solution transceiver is placed in nurses’ room to alert them of whether to remove or change ringer’s solution for each patient in each room through display and warning light for convenient, economic and stable patient care. The ringer’s solution detection and transceiver is consisted of the main control part, ringer’s solution detection part, display and warning light part, wireless transceiver, and power supply part. The light receiving part of ringer’s solution detection part employed TSL260R-LF photodiode; light permeating part, Water-Clear type LED; and wireless transceiver part, the RF wireless data transceiver module, NR-FPCX. As a result of this study on Ringer's Solution detection and transceiver design using the double photodiode it was found that when the ringer’s solution was detected by the double photodiode, the operating frequency was 11.95kHz; and when it was not detected, the number was 9.6kHz. In the ringer’s solution receiver, when the ringer’s solution was detected, the number was 0; and when not detected, the corresponding unique RF code was displayed. The power used in the ringer’s solution detection part was converted into the Sleep mode to operate under battery save mode. The ringer’s solution transceiver can exchange wireless communication approximately within 700m radius.

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