• 대한전기학회:학술대회논문집
• /
• 대한전기학회 1993년도 하계학술대회 논문집 B
• /
• pp.698-700
• /
• 1993

This paper describes characteristic analysis of VVVf type high-frequency considering dead time. Static power conversion are now used in a great variety of application including induction heating, high-frequency generation, DC/DC power converter, etc. In the circuit analysis, an offer circuit was compared with safety operating region and steady state characteristics considering dead time.

• 한국정보통신학회:학술대회논문집
• /
• 한국해양정보통신학회 2010년도 추계학술대회
• /
• pp.567-570
• /
• 2010

본 논문에서는 바둑 프로그램에서 사석을 제거하기 위해 그룹핑에 기반하여 사석을 검출하는 알고리즘을 제안하고자 한다. 그룹은 같은 색의 돌이 상하좌우로 연결되는 경우에 같은 그룹으로 그룹핑 되도록 정의한다. 사석제거 알고리즘은 이와 같은 그룹을 기반으로 하여 사석을 제거하는 방법으로서 같은 그룹의 모든 돌이 같은 색의 돌과 상관없이 상하좌우가 막혀 있는 Case에 만족 할 경우에 해당되는 그룹을 검출하여 사석으로 처리한다.

• Journal of Positioning, Navigation, and Timing
• /
• 제12권4호
• /
• pp.391-398
• /
• 2023

In this paper, we propose a Correction Dead Reckoning (CDR) solution using correction information such as Map Matching FeedBack (MMFB) in an underground parking lot. In order to correct position errors in an underground parking lot, vehicle position and heading errors are corrected using MMFB information in road link properties. The proposed method was applied to an in-vehicle navigation system and tested. The experimental results show that the proposed robust dead reckoning solution corrects Dead Reckoning (DR) position errors that occur when driving for a long time in an underground parking lot.

• 한국정밀공학회:학술대회논문집
• /
• 한국정밀공학회 2008년도 추계학술대회 논문집
• /
• pp.693-694
• /
• 2008

• 한국정밀공학회:학술대회논문집
• /
• 한국정밀공학회 2012년도 추계학술대회 논문집
• /
• pp.53-54
• /
• 2012

• 순환기질환의공학회:학술대회논문집
• /
• 순환기질환의공학회 2006년도 제6회 학술대회
• /
• pp.32-33
• /
• 2006

• 대한전자공학회논문지TE
• /
• 제39권1호
• /
• pp.16-21
• /
• 2002

본 논문에서는 TSPC(True Single Phase Clocking) CMOS 회로를 이용하여 출력특성을 향상시킨 고속 PLL을 위한 이중구조 PFD(Phase Frequency Detector)를 제안한다. 넓은 dead zone과 긴 지연시간을 갖고 있는 기존의 3-state PFD는 고속 동작에 사용되는 PLL(Phase-Locked Loop)에서 사용하는 것은 부적합하다. 이러한 3-state PFD의 단점을 해결하기 위하여 다이내믹 CMOS 논리회로로 구현된 다이내믹 PFD는 duty cycle의 변화에 따라 지터 잡음을 발생하는 문제점을 갖는다. 이러한 문제를 해결하기 위하여 TSPC 회로와 이중구조를 갖도록 설계되어 제안된 PFD는 dead zone과 duty cycle의 제한조건을 개선하였고, 지터잡음과 응답특성을 개선하였다. 즉, 이중구조를 갖는 PFD는 상승에지에서 동작하는 P-PFD(Positive edge triggered PFD)와 하강에지에서 동작하는 N-PFD(Negative edge triggered PFD)로 구성하여 이득을 증가시켜 응답특성을 개선한다. 제한된 내용의 입증을 위하여 Hspice 시뮬레이션을 수행하였다. 제안된 PFD는 dead zone이 존재하지 않으며, duty cycle의 변화에도 안정된 결과를 나타내며 응답특성이 우수함을 확인할 수 있었다.

• 중환자간호학회지
• /
• 제10권3호
• /
• pp.19-30
• /
• 2017

Purpose : This study investigated factors affecting the knowledge and attitude of organ procurement from brain dead patients in nurse clinicians. Methods : A survey was conducted with 160 clinical nurses from a university hospital in Seoul. Descriptive statistics, t-tests, an ANOVA, $Scheff{\acute{e}}^{\prime}s$ test, Pearson's correlation coefficient, and a multiple regression analysis were used. Results : The mean score for knowledge of organ procurement from brain dead patients was $12.41{\pm}2.16$ (mean correct answers = 62.1). Factors influencing the knowledge of organ procurement among nurse clinicians were working department (${\beta}=.454$, p < .001), a recent family death (${\beta}=.187$, p = .014), experience recognizing potential brain dead patients (${\beta}=.182$, p = .033), and experience referring to potential brain dead patients (${\beta}=-.192$, p = .048). Conclusion : To ensure effective organ procurement from brain dead patients, it is necessary to continually educate nurse clinicians to improve their attitude and knowledge concerning organ donation.

• 복식
• /
• 제65권8호
• /
• pp.95-109
• /
• 2015

The purpose of this Study is to understand Supsin (shoes for dead) in late Chosun dynasty through records and excavated relics. The research records in this study were two types which one was official records as The Annals of The Chosean Dynasty(朝鮮王朝實錄), Dairy of the Royal Secretariat(承政院日記) ets and the other was private records as Korean literary collections of confucian scholars in classical chinese(文集) ect. as for relics use two types of materials that one is the excavated supsins and the other is Research Reports of Excavated Costumes published from museums. Through the Collections, we can notice that shoes were several types which Wunhae(雲鞋), Danghae(唐鞋) Onhae(溫鞋) Wunli(雲履), Taesahae(太史鞋) in Chosun dynasty. these were worn in different ways according to wearer's gender, the social status, daily life or rituals, inside or outside in palace. Wunhae and Wunli was the most ceremonial shoes for man and Onhae was the most ceremonial shoes for woman. the dead man worn the Wunhae or Wunli for Supsin and the dead woman worn Onhae. we could see they use the most ceremonial shoes for supsin. through the records, we could see the change that Women's Supsin was written for the first time in 18th Saraepyenram(四禮便覽). men's Supsin was recorded as '履', while Women's Supsin was recorded as '鞋' in Saraepyenram. the reason for making difference between man and woman in costumes(男女有別). and the excavated Supsin showed that the dead worn more ceremonial shoes than records. these changes mean one of the results for making korean style rituals from chinese style(國俗化).

• 복식
• /
• 제63권7호
• /
• pp.164-175
• /
• 2013

This study examined the Yemou(a hat for a dead woman) from the ladies' clothes excavated from the Lady Lee's tomb in order to trace the significance of the clothing composition and its social origin in the Chosun dynasty. The compositional characteristic of Yemou covers the body of the hat which is not connected with the cover, Wonsal which has a round shape that covers the face of the dead body, and two Gae(a ribbon on the backside of a hat). Seongho Lee-ik(one of representative Confucian scholars in the Chosun dynasty) stated in his book entitled "Seongho Notes", that the structural elements of Yemou originated in Yum(wrapping cloth for the head of a dead body). According to Seongho, Yemou's body part came from the scarf used to cover the head. Wonsal(the cloth of round shape for covering the face) and Gae were derived from Yum made of two ends of long cloth for covering and binding the head of a dead body. Yongjae Kim-kunhang(one of Confucian scholars in the late-Chosun dynasty) demonstrated in his "Yongjae Collection" the social background of the emergence of Yemou. Yemou was the hat produced from the process of nationalizing the Chinese courtesy of clothing. In other words, Bokgun(a man's hat) in the Chosun dynasty replaced the Chinese Yum. Unlike the Chinese custom, man and woman in the Chosun dynasty wore different clothes respectively. According to the clothing custom of the Chosun dynasty a woman wore a female hat, Yemou instead of men's Bokgun.