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김윤형(Yoon Hyoung Kim),김재훈(Jae-Hoon Kim),김주한(Ju-Han Kim),김선호(Sun-Ho Kim),한상옥(Sang Ok Han) 대한전기학회 2009 대한전기학회 학술대회 논문집 Vol.2009 No.10
현재 상용중인 MDF의 절연파괴 방지 기술은 가스충진 방전관(Electrode gas-filled protector)을 사용하고 직렬로 전류제한소자를 사용하고 있다. 가스충진 방전관은 뇌/서지에 대하여 큰 용량임에도 가격이 저렴한 특징이 있으나 반응속도가 늦고, 방전 후 잔류전압이 높아 기기를 파손시킬 수 있다. 따라서 최근의 인터넷속도와 패킷교환에 부응하며, 첨단의 정보통신 장치를 보호할 수 있는 절연파괴 방지기를 개발하고자 한다. 이에 저압용 서지보호소자인 가스방전관과 반도체 소자로 구성된 서지보호기흘 개발하여 서지 보호 특성을 만족함과 동시에 통신 라인에 적용시 삽입 손실을 최소화 하였다. 본 연구에서 개발된 절연파괴 방지기는 4 ㎸ 까지의 표준 서지진압에 대한 잔류전압이 약 20 V 이하로 서지보호특성을 만족시킴은 물론 주파수 대역이 약 130 ㎒로 통신라인에 적합한 주파수 대역을 확보하였다.
건강 성인에서 라니티딘(300mg)과 오메프라졸(10mg, 20mg)의 위식도역류 및 위내 pH에 대한 효과
김영선(Young Sun Kim),송치욱(Chi Wook Song),김윤홍(Yoon Hong Kim),김혜랑(Hye Rang Kim),김윤배(Yun Bae Kim),허병원(Byung Won Hur),이정환(Jung Whan Lee),진윤태(Yoon Tae Jeen),김창덕(Chang Duck Kim),류호상(Ho Sang Ryu),현진해(Jin Hai Hy 대한소화기기능성질환·운동학회 2000 Journal of Neurogastroenterology and Motility (JNM Vol.6 No.2
N/A Background/Aims : This study was done to compare the effects of Omeprazole (OMD) 10 or 20 mg with Ranitidine(RAN) 300 mg on intragastric acidity and gastroesophageal reflux in healthy subjects. Methods : Ten healthy male volunteers were studied after administrations of 5 days dosing with either RAN 300 mg, OMD 10 mg or 20 mg, once each morning. On the 5th day, intragastric pH and lower esophageal pH were measured by a dual channel antimony pH catheter for 10 hours. Results : Gastroesophageal reflux was reduced after administrations of RAN 300 mg, OMD 10 mg or 20 mg (p<0.05) and there was no significant difference among the three drugs (p>0.05). The gastric holding time of pH >4 was significantly prolonged over fasting and postprandial periods after RAN 300 mg, OMD 10 mg or 20 mg administrations (p<0.05). OMD 20 mg showed the most potent effect on gastric acid suppression (p<0.05), but there was no significant difference between RAN 300 mg and OMD 10 mg (p>0.05). OMD administrations (10 mg or 20 mg) exhibited a more potent effect on gastric acid suppression during the postprandial period than RAN 300 mg (p<0.05). Conclusions : OMD 10 mg was as potent as RAN 300 mg on inhibition of gastric acid, but less potent than OMD 20 mg. There was no difference among the three drugs in regard to gastroesophageal reflux in healthy subjects.
고등학생의 자아존중감과 분노표현이 SNS중독경향성에 미치는 영향 요인
김지현(Ji-Hyeon Kim),김향수(Hyang-Soo Kim),김건희(Gun-Hee Kim),김민주(Min-Ju Kim),김윤선(Yoon-Sun Kim),김정원(Jung-Won Kim),남경민(Kyung-Min Nam) 한국응용과학기술학회 (구.한국유화학회) 2021 한국응용과학기술학회지 Vol.38 No.1
본 연구는 고등학생의 자아존중감;분노표현;SNS중독경향성의 정도 및 그들 변수 간의 관계와 SNS중독경향성에 미치는 영향 요인을 알아보고자 하는 서술적 조사연구이다. 대상자는 2020년 5월 18일~28일까지 총 10일 간 S시;G도 고등학교에 재학 중이며 SNS을 이용하고 있는 대상자에게 온라인 설문지를 이용하여 총 100부의 자료를 수집하였다. 연구결과;SNS중독경향성과 자아존중감(r=-.385;p<.001);분노조절(r=-.354;p<.001)과는 보통의 역 상관관계;분노표출(r=.321;p=.001);분노억압(r=.308;p=.002)과는 보통의 순 상관관계를 나타냈다. SNS중독경향성에 미치는 영향 요인은 자아존중감(β=-.297;p=.001);성별(β=.266;p=.003);분노표출(β=.247;p=.007) 순으로 회귀모형의 설명력은 27.7%로 나타났다(F=12.279;p<.001). 따라서 SNS중독경향성을 낮추기 위해 고등학생의 자아존중감을 높이고 분노표출을 낮추기 위한 프로그램 개발이 필요하며 특히 성별에서 여자 고등학생의 SNS중독경향성을 낮추기 위한 방안이 모색되어야 할 것이다. This study is a descriptive research study to find out the relationship between degree of Self-Esteem;Anger-Out;Anger-In;Anger-Control and SNS Addiction Tendency of high school students;and the factors that influence SNS addiction tendency. For a total of 10 days from May 18 to 28;2020;a total of 100 people were collected using online questionnaires to those who were attending high schools in S and G regions and using SNS. As a result of the study;SNS addiction tendency and self-esteem(r=.385;p<.001);anger-control(r=-.354;p<.001) showed a normal inverse correlation;and an anger-out (r=.321;p=.001);anger-in (r=308;p=.002) showed a common net correlation. Factors affecting SNS addiction tendencies were self-esteem(β=-.297;p=.001);gender(β =.266;p=.003);and anger-out(β=.247;p=.007);with 27.7% explanatory power in the regression model(F=12.279;p<.001). Therefore;it is necessary to develop programs to increase high school students self-esteem and lower their anger-out in order to reduce SNS addiction tendencies;especially for female high school students in gender.
박휘향,김연주,김진희,박미현,김연경,김연빈,김윤서,김지안,민지현,배성철,김진아,안성아,김은희,Park, Hwi-Hyang,Kim, Yeon-Joo,Kim, Jin-Hui,Park, Mi-Hyeon,Kim, Yeon-Gyeong,Kim, Yeon-Bin,Kim, Yoon-Seo,Kim, Ji-An,Min, Ji-Hyeon,Bae, Seong-Cheol,Kim 한국임상보건과학회 2015 한국임상보건과학회지 Vol.3 No.1
Purpose. The purpose of this study was to investigate level of knowledge and attitude about organ donation in university and provide basic information on correct education and promotion. Method. The sample is consisted of 90 the students related to health and 90 general college students ; total 180 students in J city. The questionnaires were used to obtain the results. Data was collected from November 6th to 8th, 2013. For data analysis, the SPSS for window 12.0 K program was utilized to get descriptive statistics including the percentage, average, standard deviation and t-test. Results. Comparing the results between a series of health students and general college students, a series of health students showed high level of more knowledge and more positive attitude about organ donation than general college students. A series of health showed significant correlation but general college didn't show significant correlation. Conclusion. To educate correct knowledge draw positive attitude about organ donation is needed to improve the level of Knowledge and Attitude about organ donation.
조력용 PC 기반 기동ㆍ정지 제어시스템의 최적화 알고리즘과 시제품 하드웨어 설계
김윤상(Yoon-Sang Kim),박철원(Chul-Won Park) 대한전기학회 2014 전기학회논문지 P Vol.63 No.2
Tidal generation has become one of environmentally friendly new and renewable future sources of energy. The Sihwa Tidal Power Plant in South Korea, which was imported from abroad by turnkey type in 2011, connected to the power system in 2012, and is currently under commercial operation. However, leading companies are reluctant to disclose their technologies associated with the control systems and are not cooperative in technology transfers, making it a high priority to develop core technologies in South Korea. In order to develop a start·stop control system for tidal generation, this paper presents the optimal algorithm for decision making and prototype of hardware design. First, control systems in tidal power, such as plant operation control, data interfaces between systems, monitoring and control points of the control system, are analyzed. The software development and PC based emulator processes for optimization algorithm processing are described. Finally, verification of the algorithm implementation, hardware platform for start·stop control device, and implementation of prototype control system were discussed.
노인 암환자의 건강정보 이해능력을 반영한 항암화학요법 자기관리 프로그램 개발 및 평가
김윤선(Kim, Yoon Sun),태영숙(Tae, Young Sook),정귀임(Jung, Kwuy-Im) 한국간호과학회 2019 Journal of Korean Academy of Nursing Vol.49 No.4
Purpose: This study aimed to develop and evaluate the effectiveness of an adapted health literacy self-management intervention for elderly cancer patients undergoing chemotherapy. Methods: The intervention in this study was systematically developed through the six stages of Intervention Mapping Protocol and was based on Fransen et al’s causal pathway model. A quasi-experimental trial was conducted on a total of 52 elderly patients (26 in an experimental group and 26 in a control group) undergoing chemotherapy in Korea. The intervention consisted of seven sessions over 5 weeks. The experimental tool for this study was an adapted health literacy self-management intervention, which was designed to promote a reduction in the symptom experience and distress of elderly cancer patients through the promotion of self-management behavior. To develop efficient educational materials, the participants’ health literacy was measured. To educate participants, clear communication and the teach-back method were used. In addition, for the improvement of self-efficacy, four sources were utilized. For the promotion of self-management behavior, five self-management skills were strengthened. Data were collected before and after the intervention from June 4 to September 14, 2018. The data were analyzed with SPSS/WIN 21.0. Results: Following the intervention, self-management knowledge and behavior and, self-efficacy significantly improved in experimental group. Symptom experience and distress decreased in the experimental group compared to the control group. Conclusion: The self-management intervention presented in this study was found to be effective in increasing self-management knowledge and behavior and, self-efficacy, and ultimately in reducing symptom experience and distress for elderly patients undergoing chemotherapy.