가스反應에 의한 S_nO_2-Pd薄膜의 電氣 傳導特性

韓相道,琴彩 충남대학교 자연과학연구소 1984 忠南科學硏究誌 Vol.11 No.2

SnO_2-Pd thin film was made by co-evaporation method of the Sn-Pd metal under the pressure ∼5×10 exp (-6)Torr and by the oxidation process at the temperature of 600∼650℃ for 3 hours in air ambient. The best sample for CO gas sensing was about 10% Pd doped SnO_2 thin film. The fastest saturation response time of the sample was 5-6 minutes at 160℃ substrate temperature and the temperature was the excellent point of gas sensing sensor. When we took the Pd doping range of 0∼20%, the Pd more doped SnO_2 shows the lower temperature point of reverse change in electrical conductivity.

비최소 위상 시스템에 대한 적응 선형 2차 가우시안 제어기

한만춘,고재원,지승도 연세대학교 대학원 1985 延世論叢 Vol.21 No.4

This paper deals with the design of an adaptive linear-quadratic Gaussian controller to achieve regulation and tracking for non-minimum phase systems represented by a discrete single input-output stochastic state equation including white noise with a Gaussian distribution function. The parallel adaptive structure proposed by Landau has been adopted and an identification algorithm is used to obtain an unbiased estimation of the parameters. Applicability of an adaptive linear-quadratic Gaussian controller and the influence of each of the constants needed in the adaptation algorithm have been investigated. It is shown that the adaptive linear-quadratic Gaussian controller can achieve the fast adaptive control, when the system has the reference signal with a short period and abruptly varing parameters. With respect to white noise, this paper can be considered an extents of adaptive linear-quadratic controller proposed by Samson.

김두봉의 항일역정과 인생유전

한상도 건국대학교 인문과학연구소 2003 인문과학논총 Vol.39 No.-

Kim Dubong was a scholar who organized the speaking and writing systems of Korean. Hangul. During the Japanese colonization of Korea, he was an independent activist who fought against Japanese control of Korea. After liberation, he participated in the North Korean government and contributed to the establishment of Kim Ilsungs regime. However, he was victimized by the politics in the end. He applied Ju Sikyungi's phonology and phonetics to Hangul for the first time and made a contribution to settling the rules of Korean orthography. Despite the pursuit of his academic contribution, he could not help but give up his scholarly passion and devote himself to anti-Japanese activities. In the early 1920s, he played important roles in the Korean Provisional Government and the Goryeo Communist Party. His activities explain the situation of the independent movement of Koreans in Shanghai. China at that time. When the Korean Provisional Government was established in the early 1920s, it had right and left coorperative fronts. At that time, the Goryeo Communist Party also did not emphasize ideology. Therefore, Kim Dubong did not regard either of them as the choice of one of two sides, but as relations of cooperation. His activities indicate his revolutionary characteristic beyond the conflicts between the ideologies. I also would like to stress his personality through his activities in the headquarters of anti-Japanese activities of the Chinese Communist Party in Shanxi Province in the spring of 1929. In the spring of 1941, by moving to the extent of jurisdiction of the Chinese Communist Party, which was the main force of the Korean Militia Corps, he lost his power in the National Revolutionary Party and the Nationalists of the Right wing of the Korean Independent Party, which was the main force of the Korean Provisional Government. In addition, his wifei's and daughters liberal behavior in public were targeted in order to criticize Kim Dubong and, as a result, he encoutered estrangement between his ideology and reality. In this time of hardship, the Chinese Communist Party suggested him to work together. However, after independence of Korea from Japan his achievements that has been judged in modern history of North Korea indicate another charactersitic. His ideology and reality were alienated. Consequently, his intellect had no choice but to get discouraged. Through his life we can see the violence of the modern history of Korea.

유압식 인버터 제어기의 속도제어를 위한 퍼지기반 하이브리드 슬라이딩모드 제어기 설계

한권상,최병욱,안현식,김도현 제어·자동화·시스템공학회 2003 제어·자동화·시스템공학논문지 Vol.9 No.3

19세기 西進東漸의 파도 속에서 국가의 자립과 근대화를 위해 몸소 힘썼던 兪吉潛과 福澤??論의 사상 가운데 그들의 政淪論을 한국과 일본의 근대화 방향 차이를 중심으로 살펴보고자 한다. Due to the friction characteristics of pump, cylinder packing and passenger car, in the elevation system actuated with hydraulic inverter, there exist dead zones, which cannot be controlled by a PID controller. To overcome the drawbacks, in this paper, we propose a new hybrid fuzzy-sliding mode control scheme, which controls the controller output between a sliding mode control output and a PID control output by fuzzy control method. The proposed hybrid control scheme achieves an improved control performance by using both controllers: We first propose a design method of the hybrid controller for a hydraulic system controlled by inverters, then propose a design method of a hybrid fuzzy-sliding mode control scheme. The effectiveness of the proposed control scheme is shown by simulation results, in which the proposed hybrid control method yields better control performance then the PID controlled scheme, not only in the zero-crossing speed region but also in the overall control region including steady-state region.

인터넷을 이용한 유도홍보 활성화 방안

한이석,김도준,정상윤 용인대학교 무도연구소 2000 武道硏究所誌 Vol.11 No.1

This study analyzed current issues by theoretical investigation on and by the research of current situation and actual condition on all the matters for public relation of Judo. I suggested the importance of internet, a method for future public relation, researched methods for its utilization and system for making up contents and approached internet to the public relation of judo. The strategies for the public relation of judo are as below. First, it should consist of better rich contents ill order for people to know the records of judo match current conditions on its players, public relation of the matches, etc.. Also, the chiefs of private judo halls should have interests in the public relation through internet and make assurance doubly sure of public relation of private judo halls since it is thought that all the people can easily approach it no matter what their majors are considering that today the number of people using internet are increasing in geometric progression and internet maintains lots of consumers regardless of social classes owing to rapidly spreading internet pervasion, technology development of various multi media and commercialization of information. Second, internet can quickly and exactly transmit accurate information needed for the target group with cheap price and with no limits of time and space though almost all methods such as telephone line, cable television, earth satellite, wireless communication information expressway, etc. and thus can obtain feedback for the simple and convenient addition of new technology or revised regulations to the existing data.

Irbesartan과 Lercanidipine의 병용요법이 고혈압 및 혈관재형성에 미치는 효과

이도형, 임태완, 조은지, 박현수, 정상혁, 한주희, 병창선 충남대학교 약학대학 의약품개발연구소 2017 藥學論文集 Vol.32 No.-

Hypertension is one of the major risk factor for cardiovascular disease and can lead to or make worse many complications, heart disease, atherosclerosis and diabetes. Thus, managing blood pressure effec tively using therapeutic drugs such as angiotensin II receptor blocker (ARB) and Ca2+ channel blocker (CCB) can be prevent other complications. Therefore, we investigated the synergistic effect of these two drugs, ir besartan and lercanidipine, for antihypertension, cardioprotection and antidiabetes. Irbesartan (28.74 mg/kg, 14.37 mg/kg) or lercanidipine (1.92 mg/kg, 0.96 mg/kg) alone or combination was administered to sponta-neously hypertensive rats (SHRs) and C57BL/6 mice. A two-week treatment of combination with irbesartan and lercanidipine significantly attenuated systolic blood pressure (SBP) and mean arterial pressure (MAP) compared with monotherapy. Futhermore. the combination therapy protected myocardial ischemia reperfusion injury more effectively than monotherapy. In vascular remodeling, combination therapy significantly diminished cuff -induced neointima formation and reduced serum -indllced vascular smooth muscle cells (VSMCs) pro-liferation compared with monotherapy. However, combination therapy had no significant synergistic effect of blood glucose regulation. Taken together, present study suggest that the combination therapy of irbesartan and lercanidipine may be more effective therapeutic strategy for the treatment of hypertension and related complications, myocardial infarction and arterial restenosis than monotherapy

건조 재료를 사용한 콘크리트의 포장화에 관한 실험적 연구

한다희,박희곤,백민수,김성식,이영도,정상진 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.2

Most concrete is recently made of an aggregate which is properly absorbed, and earned in it in order to do capability at every fields. We have been close to demand new capability of high flowing and enduring for specific concretes. That is difficult to cope with claiming the efficiency on deterioration from lack of a high quality aggregate. Therefore, For solving the problems we apply to a packing method for using dried materials. That is to say it is a kind of making into an instant. In this study, There is a purpose to present fundamental data, comparing and analyzing a phenomenon about aggregate's absorption following the rate of adding water, for using existing materials.

유압 인버터 엘리베이터에서의 극저속 속도제어를 위한 퍼지논리 제어기의 설계

한권상,김병화,이우철,장태호,이건학,사공석진,안현식,김도현 대한전자공학회 1999 夏季綜合學術大會 論文集 Vol.22 No.1

In this paper, a fuzzy logic controller is designed for speed control of a hydraulic inverter elevator. Mathematical modeling of an elevator actuated with hydraulic system is presented and the friction characteristics of a cylinder is examined, which may cause the abrupt increase of the acceleration in the zero-crossing speed region. Simulation results show that the proposed fuzzy logic speed controller yields a better control performance than conventional PID controller.

日帝下 在中韓人獨立運動의 國際的 背景 : 中國軍閥政權 및 國民黨政府와의 관계를 중심으로

韓相禱 건국대학교 사학회 1993 建大史學 Vol.8 No.-

Propofol이 Xenopus Oocyte에 발현된 제3형 글루탐산염염 운반자의 활성도에 미치는 효과 : Protein Kinase C의 역할 The Role of Protein Kinase C

도상환,김진희,함병문,zhiyi zuo 대한정맥마취학회 2003 정맥마취 Vol.7 No.4