사용자 인식 스마트 홈 미러

최건영,고성화,김종옥,박은서,김완규,백경동,박동규 순천향대학교 부설 산업기술연구소 2021 순천향 산업기술연구소논문집 Vol.27 No.2

The Internet of Things, the core of the Fourth Industrial Revolution, is growing by incorporating various technologies into various fields. Among them, smart home systems that apply IoT technology to home environments are being actively studied. The home hub market, a means of communication for smart homes, is also developing at the same time. As the home hub market develops, security threats are also increasing accordingly. In this paper, 'Smart Home Mirror' is implemented by combining mirror and IoT technologies so that users can use them to communicate with smart home applications and other devices. To meet security issues, users in it are recognized by using face recognition technology and AES between all data communications in it is applied. The proposed device’s usefulness is approved by implementing it in smart home environments.

방광의 염증성 가종양 1례

정영봉,배준,권명훈,김상익,김경수 大韓泌尿器科學會 2001 Korean Journal of Urology Vol.42 No.3

연장된 연변절개를 이용한 코성형술

윤영석,장태영,김규성 대한이비인후과학회 1999 대한이비인후과학회지 두경부외과학 Vol.42 No.9

콩에서 발생하는 강낭콩일반모자이크바이러스(BCMV)와 땅콩위축바이러스(PSV)의 저항성 평가

이영훈, 윤영남, 강범규, 김현영, 최만수, 구성철, 김현태, 윤홍태, 이수헌, 백인열 忠北大學校 農業科學硏究所 2014 農業科學硏究 Vol.30 No.2

It has been reported several viral diseases in soybean. The occurrence of Bean common mosaic virus and Peanut stunt virus are able to induce severe problem because the main breeding target for viral disease was focused on Soybean mosaic virus. BCMV is a spcies of the genus Potyvirus of the family Potyviridae. BCMV reduces yield by as much as 80% and also adversely affects seed quality in common bean. BCMV has a worldwide distribution because of its high rates 35% of transmission via seeds produced by plants systemically infected prior to bloom. PSV is a species of the genus Cucumovirus of the family Bromoviridae. PSV has been reported to be economically damaging on beans worldwide. Although the virus is reportedly seed transmissible at very low rates, infected plants rarely produce pods with normal viable seeds. The most satisfactory management method of viral diseases such as BCMV and PSV is the use of resistant cultivars and healthy seed. For the overcome of genetic resistance by new virus such as BCMV and PSV, virus diseases monitoring and researches need to study deeply and continually. In this study, we conducted the resistance screen on BCMV and PSV for selection of resistance cultivars. We inoculated on 128 cultivars with PSV and BCMV respectively. These cultivars were classified through pathogenic response such as resistance, necrosis and susceptibility. In addition, 99 and 66 resistant cultivars were confirmed against PSV and BCMV respectively.

재이식 가능한 32비트 테스크 코어 설계

윤영상,최종화,김용대,한선경,유영갑 충북대학교 컴퓨터정보통신 연구소 2004 컴퓨터정보통신연구 Vol.12 No.1

본 논문에서 제시한 32비트 테스트 코어는 기존의 ARM과 같은 32비트 RISC 코어를 대신하여 JTAG 및 코어브레이커의 회로 테스트를 위하여 고안되었다. 테스트 코어는 디버깅유닛을 바꾸어가며 재이식(retargetable) 가능하게 사용될 수 있다는 장점을 갖는다. 회로 합성 결과 하드웨어는 ARM과 비교하여 33% 정도의 게이트를 가진다. 테스트 코어는 보다 높은 디버깅 성능을 위해 다중로드(multiple load; LDMA)와 다중저장(multiple store; STMA)명령을 추가하였으며 단일로드(single load; LDR) 또는 단일저장(single store; STR)명령들에 비해 64% 정도의 처리시간 단축을 나타내었다. A 32bit RISC type core is designed to replace full processors for testing JTAG and core breaker modules. It is retargetable and can be utilized to test a debugging unit. The design uses about 33% of gates with respect to a fully designed ARM7. It has instructions, multiple load or store(LDMA, STMA), for debugging purposes. Simulation result shows that they reduce the execution time about 64% with respect to processors having a single load or store(LDR, STR) instruction.

어음抗辯에 關한 硏究

金永祥 건국대학교 1989 論文集 Vol.29 No.2

I. Introduction II. The definition of Defences in Bills of Exchange III. Theoretical Base of Defences and It's Restriction in Bills of Exchange 1. Theory of Special Provisions 2. Theory of Origin Effect in Endoresment VI. The Classification of Defences 1. Real Defences 2. Personal Defences 3. Defences of Malice V . Conclusion. We consider the "Nemo plus principle" right in human society. But our society is changing promptly these days. We human beings invented and developed bills and notes in our commercial transactions. Our commercial transactions and civil transsactions are not always carried desirably. I proposed that claimee of a bill should be paid for damage not by taking action but by insurance.

통계적 방법을 이용한 오존 형성의 예측

여영구,손상현,오세천 漢陽大學校 環境工學硏究所 1999 環境科學論文集 Vol.20 No.-

통계적 방법을 이용하여 오존 형성의 예측에 관한 연구를 수행하였다. 통계적 방법으로는 파라미터 평가 방법과 인공신경 회로망 방법이 적용되었다. 파라미터 평가 방법에는 실시간 파라미터를 평가하기 위하여 ELS 및 RML 방법이 사용되었으며 오존 형성의 모델로는 ARMAX 모델을 사용하였다. 또한 3층 구조를 갖는 인공신경 회로망 방법을 이용하여 오존 형성의 예측 시험을 수행하였으며 본 연구에 사용된 통계적 방법의 성능을 평가하기 위하여 오존 형성의 예측결과를 실제자료와 비교 분석을 하였다. 실제 자료와의 비교를 통하여 파라미터 평가 방법 및 인공신경 회로망 방법에 근거한 예측방법이 제한된 예측 구간 내에서 만족할 만한 성능을 보임을 확인할 수 있었다. The prediction of ozone formation was studied using the stochastic method, Parameter estimation method and artificial neural network(ANN) method were employed in the stochastic scheme. In the parameter estimation method, extended least squares(ELS) method and recursive maximum likelihood(RML) were used to achieve the real time parameter estimation. Autoregressive moving average model with external input(ARMAX)was used as the ozone formation model for the parameter estimation method, ANN with 3 layers was also tested to predict the ozone formation. To demonstrate the performance of the ozone formation prediction schemes used in this work, the prediction results of ozone formation were compared to the real data. From the comparison it was found that the prediction schemes based on the parameter estimation method and ANN method show an acceptable accuracy with limited prediction horizon.

방전관용 전극개발 및 특성에 관한 연구

안성환,황동원,최준영,송시준,전용우,박원주,이광식 영남대학교 공업기술연구소 2001 工業技術硏究所論文集 Vol.29 No.1

This paper describes the development of sputtered tungsten electrode for discharge tube by making use of Sputtering method using plasma. The Xe discharge tube was designed and fabricated by using sputtered tungsten electrode, and the ICCD(Intensified Charged Coupled Device) and monochromator were used in order to observe the discharge image distribution and to measure the signal intensity. As a result, the emission light form the electrode was spreaded almost uniformly over a wide wavelength band, and the discharge image distribution and the signal intensity show quite a uniform distribution. The emission light from the Xe discharge tube was peaked at 488[nm] and 648[nm].

소학교령기(1895-1905) 관·공립소학교교육의 성격에 대한 고찰

이성은,김정효,정희숙,이해지,허선영 한국초등교육학회 2004 초등교육연구 Vol.17 No.1

본 연구의 목적은 국가 주도의 기초 공교육의 효시가 된 소학교령기(1895-1905) 관, 공립소학교교육의 성격을 탐구함으로써, 우리나라 초등교육기원에서 보여지는 특성을 재조명하려는 데에 있다. 이를 위해 소학교령기의 사회적 상황과 교육적 요구, 초등학교의 교육목적, 교육내용 및 방법, 학습자계층과 교원양성과 처우에 대해 알아봄으로써, 당시 초등학교교육의 성격이 어떠했는지 규명하였다. 연구결과, 이 당시 관, 공립소학교는 사회 통합적이라기보다는 구국적 국민계몽교육의 성격을 띠었으며, 보편적 아동교육 이라기보다는 혁신적 근대교육을 상징하였고, 현실안주적 보통교육 이라기보다는 미래지향적 교육의 성격을 띠었다. 결론적으로 다양한 시대상황적 한계에도 불구하고 교육개혁의 의지는 대단하였던 것으로 평가되어졌다. The purpose of this study was to search for the nature of public primary school education in beginning period Enlightenment in Korea(1895-1905) in terms of the aims, the educational contents and methods, and the learner and teacher. For the purpose, the contemporary governmental documents, the newspapers, and other historic materials were collected and analyzed and the school sites were visited. The nature of public primary school education in beginning period of Enlightenment, was revealed as follows: First, it was not for the social consensus, but for the enlightenment of the people against nationalism. Second, it was not universal child education, but innovational elite education, Third, it did reflect not the present need, but the future need. In conclusion, it can be said that their intention of establishment of modem primary school has been underestimated and that their effort for educational reform should be reevaluated. But the research result suggests that public primary school education needs the balance not only between national needs and individual needs, but also between present needs and the future need.

電解質 溶液의 脫收氣泡塔에서 物質傳達에 관한 硏究

咸榮敏,李相鳳 단국대학교 1984 論文集 Vol.18 No.-

Expermental data on the gas hold-up and oxygen mass transfer coefficient K_La in 5㎝ I.D. continuous countercurrent bubble column with porous gas distributor were obtained with various aqueous electrolyte solution in order to determine the effect of ionic strength on the objective parameters. The data were obtained in a countercurrent flow system in the ranges of gas velocity of 1.1㎝/sec to 5㎝/sec and liquid velocity of 0.3㎝/sec to 0.9㎝/sec. The electrolyte solutions were: K1, KBr, KCl, NaCl, MgCl_2, CaCl_2, MgSO_4, Na_2SO_4, FeCl_3, K_3PO_4. Desorption of oxygen was studied by measuring the concentration of oxygen in the liquid phase. The results showed a definite dependence of gas velocity, liquid flow rate and especially ionic strength on the gas hold-up and oxygen mass transfer in the range of dilute electrolyte solution (I<0.2). A correlation for ε_G and K_La was developed and was shown to correlate the experimental data with an average deviation of 5.3%, 6.7%, respectively.