http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
이정현,조혜기,장동기,강현우,김재학,임윤정,이준규,Jung Hyeon Lee,Hye ki Cho,Dong Kee Jang,Hyoun Woo Kang,Jae Hak Kim,Yun Jeong Lim,Jun Kyu Lee 대한소화기암연구학회 2018 Journal of digestive cancer reports Vol.6 No.1
Multiple primary cancer is defined as two or more malignant neoplasms in a single individual. The incidence of multiple primary cancer is likely to increase due to earlier and accurate diagnosis and prolonged life span. Above all, the incidence of quintuple primary malignant tumors is reportedly extremely rare. Herein, we present a case of 65-year-old who had quintuple primary cancers of the liver, rectum, nasopharynx, oropharynx and hypopharynx.
이정현,권오민,Lee, Jeong-Hyeon,Kwon, Oh-Min 대한예방한의학회 2013 대한예방한의학회지 Vol.17 No.1
Objectives : The aim of this research is to produce information by gathering up the data on the interaction between medicinal herbs which lie scattered in oriental medical books, and to provide people with easy access to the information by visualizing it. Methods : For this purpose, this study established the fundamental data by organizing the patterns of interaction into some kinds after selecting a part of Bonchogangmok(本草綱目) and extracting its text. In addition, in an effort to visualize the data, the study converted the data into 'net' file and visualized the interaction between medicinal herbs on Pajek. The visualization was done targeting a total of three patterns, such as 1 medicinal herb, 2 medicinal herbs, and 1 prescription. With the data on 'Chinese Lacquer(乾漆)' for 1 medicinal herb, data on 'Licorice(甘草)' and 'Chinese Lacquer(乾漆)' for 2 medicinal herbs, and data on 'Iijin-tang(二陳湯)' for prescription, the research conducted the analysis of the network using 'Kamada-Kawaii Algorithm' on Pajek. Results : As a result of the analysis, it was possible to see the meanings at a single glance as the scattered and fractional meanings were integrated with focus on medicinal herbs, but the increasing number of analyzed medicinal herbs tended to more and more complicate their relationships, thus, requiring additional work like filtering. Conclusions : Such results are fairly applicable in on-line database, and it is judged that if further research expands its scope to include systematic classification of medicinal herbs or cover other medical books than Bonchogangmok, it will create more objective, abundant information.
이정현,임성락,Lee, Jeong-Hyeon,Im, Seong-Rak 한국정보처리학회 1998 정보처리학회논문지 Vol.4 No.1
인터넷의 가장 중요한 서비스 중의 하나인 저낮 메일 시스템으 swjd보 교환의 수단으로 널리 이용되고 있다. 그러나, 대부분의 기존 전자 메일 시스템은 7비트 코드를 지원하기 위하여 설계되었기 때문에 한글 메시지와 같은 8비트 코드를 전송하는데 문제점이 있다. 이러한 문제점을 해결하기 위하여 MIME, ISO-2022-KR과 같은 기법이 발표 되었지만 아직도 한글 메시지의 송수신에는 어려움이 있다. 본 논문에서는 일반 사용자가 보다 편리하게 한글 메시지를 송수신할 수 있는 전자 메일 브라우저 모델을 제시한다. 제시한 모델의 기본 개념은 MIME만을 지원하는 POP3 클라이언트를 확장한 것으로써 8비트 한글 메시지를 ISO-2022-KR이나 Quoted-Printable 혹은 Base64로 인코딩하여 7비트로 전송한다. 제시한 모델의 타당성을 검토하기 위하여 전자 apdf 브라우저를 한글 Win95환경에서 구현하여 실험하였다.
직렬 커패시터 D/A 변환기를 갖는 저전력 축차 비교형 A/D 변환기
이정현(Jeong-Hyeon Lee),진유린(Yu-Rin Jin),조성익(Seong-Ik Cho) 대한전기학회 2019 전기학회논문지 Vol.68 No.1
The charge redistribution digital-to-analog converter(CR-DAC) is often used for successive approximation register analog-to-digital converter(SAR ADC) that requiring low power consumption and small circuit area. However, CR-DAC is required 2 to the power of N unit capacitors to generate reference voltage for successive approximation of the N-bit SAR ADC, and many unit capacitors occupy large circuit area and consume more power. In order to improve this problem, this paper proposes SAR ADC using series capacitor DAC. The series capacitor DAC is required 2(1+N) unit capacitors to generate reference voltage for successive approximation and charges only two capacitors of the reference generation block. Because of these structural characteristics, the SAR ADC using series capacitor DAC can reduce the power consumption and circuit area. Proposed SAR ADC was designed in CMOS 180nm process, and at 1.8V supply voltage and 500kS/s sampling rate, proposed 6-bit SAR ADC have signal-to-noise and distortion ratio(SNDR) of 36.49dB, effective number of bits(ENOB) of 5.77-bit, power consumption of 294uW.
시각 장애인을 위한 착용형 보조 장치의 새로운 디자인 설계
이정현(Jeong-Hyeon Lee),오재희(Jae-Hee Oh),차현준(Hyeon-Jun Cha),허준영(Jun-Young Heo),송규원(Gyu-Won Song),이승환(Seung-Hwan Lee) 한국정보기술학회 2021 Proceedings of KIIT Conference Vol.2021 No.11
본 논문에서는 시각장애인의 안정적인 보행을 보조하기 위한 착용형 장치의 새로운 디자인 설계를 제안한다. 착용형 보행 보조 장치는 LiDAR, IMU, 진동모터 및 임베디드 보드로 구성되어있다. LiDAR는 시각장애인 주변의 클라우드 포인트를 검출하였고, 이를 토대로 장애물 탐지를 수행하기 위해 ROS Obstacle Detector Package가 이용되었다. 탐지된 장애물 정보는 진동모터를 통해 시각장애인에게 표현/전달되고, 시각장애인은 이를 이용하여 다가오는 물체를 회피하여 안정적으로 보행할 수 있게 된다. 현재 모듈 단위로 구현 및 테스트를 진행하고 있으며, 향후 설계가 완료된 후, 실제 시각장애인을 대상으로 실험을 진행할 예정이다. In this study, we propose a new design of wearable walking assistive device for the blind. The wearable walking assistive device is composed of LiDAR, IMU, vibration motor and an embedded board. LiDAR detects point cloud around the blind and ROS Obstacle Detector Package is performed using it. The detected obstacle information is expressed/transmitted to the blind through the vibration motor, and finally the blind can walk stably by avoiding approaching objects. Currently, we are implementing and testing modules of the wearable assistive device. In future work, we plan to conduct experiments practically for the blind.
정신병적 증상의 동반 여부에 따른 메스암페타민 남용자들의 인격 특성 비교
이정현(Jeong-Hyeon Lee),권도훈(Do-Hoon Kwon),이병대(Byung-Dae Lee),김양태(Yang-Tae Kim),조수현(Soo-Hyun Joe),이영민(Young-Min Lee),문은수(Eun-Soo Moon),조성남(Sung-Nam Cho) 한국중독정신의학회 2010 중독정신의학 Vol.14 No.1
Objectives:This study aimed to investigate personality profile differences among methamphetamine abusers admitted to Bugok National Hospital according to the presence or absence of psychotic features. Participants & Methods:Participants were 37 hospitalized male patients who met the DSM-IV criteria for methamphetamine abuse or dependence. We evaluated their psychotic symptoms using the Brief Psychiatric Rating Scale (BPRS). To measure personality traits, we used the Temperament and Character Inventory (TCI) and the NEO Five Factor Inventory (NEO-FFI). We used the independent t-test to analyze differences in inventory profiles between participants with the sole diagnosis of Methamphetamine Dependence with, or without, psychotic symptoms. Results:Compared with their non-psychotic counterparts, methamphetamine users with psychotic features showed significantly higher Novelty-Seeking and, Harm Avoidance and lower Extraversion. Conclusion:This study suggests that differences in methamphetamine abusers’ personality profiles might suggest possible vulnerability to methamphetamine-induced psychotic features. Further trials, larger and well-designed, could more accurately define differences in personality profiles between methamphetamine users with psychotic features and without psycho-tic features.