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이주원,이병로,Lee, Ju-Won,Lee, Byeong-Ro 한국정보통신학회 2015 한국정보통신학회논문지 Vol.19 No.4
최근, 생체 정보를 이용하여 개인의 신원을 확인하기 위해 근적외선 LED와 CCD 카메라를 이용한 지정맥 인식기술 연구되고 있다. 지정맥 인식은 손가락의 두께, 주변 광, 체온카메라 등의 잡음으로부터 정맥과 배경 이미지를 분리하는 방법에 따라 성능의 차이가 발생한다. 이러한 문제점을 개선하기 위해 본 연구에서는 NIR LED와 CCD 카메라로 촬영된 지정맥 영상으로부터 지정맥 회전, ROI 검출, 필터뱅크를 이용한 정맥 증강 기법을 제안하고 실험을 통하여 그 성능을 평가하였다. 이 실험의 결과에서 제안된 지정맥 회전과 ROI 검출의 정확도가 99.8%를 보였다. 그리고 필터뱅크를 이용한 정맥 증강처리에서는 제안된 방법이Retinex 알고리즘 보다 우수한 대비 성능을 보였다. 이 실험의 결과로부터 제안된 방법을 정맥인식의 전처리 과정에 적용한다면, 보다 나은 인식률을 제공할 것으로 사료된다. Recently, the finger vein recognition based on NIR and CCD sensor camera is investigating the technology to identify a personal using by biometrics. The performance difference of finger vein recognition is generated according to methods that are to separate the vein and background from noises such as finger thickness, ambient light, skin temperature, etc. To improve these problems, in this study, we are proposing the methods for rotation, ROI extraction, and enhancement of vein image captured by NIR LED and CCD camera, and were evaluated performances of these methods. In results of the experiment, the accuracy of the proposed method for image rotation and ROI extraction was 99.8%. And the proposed filter bank method in vein enhancement has shown better performance than retinex algorithm. The proposed method for results of these experimentations will provide better recognition rate when applied to the preprocessing of finger vein recognition.
광전력 진폭변조와 ICA를 이용한 PPG 신호의 동잡음 제거 필터 설계
이주원,이병로,Lee, Ju-Won,Lee, Byoung-Ro 한국정보통신학회 2013 한국정보통신학회논문지 Vol.17 No.3
Recently, u-healthcare device is developed and commercialized for healthcare management and emergency medical. The kinds of the measurable biomedical signals on the device are electrocardiogram, skin temperature, pulse oxygen, heart rate, respiration, etc. Specially, the photoplethysmograph(PPG) signal of these signals is the important signal in measuring oxygen, heart rate and peripheral vascular compliance. The accuracy of PPG signal reduce from influence of the motion artifacts that generated from the movements of user or patient. Therefore, this study suggests a new method to remove the motion artifact that is using optical power modulation and ICA(Independent Component Analysis). For analyzing the proposed method, we used variety of noises made by artificially. In the results of experiments, the proposed method showed good performances than an adaptive filter. 최근 IT+BT 융합 기술로 건강관리 및 응급의료 등을 위하여 U-헬스케어 단말 장치가 개발되고 상품화가 되고 있다. 이 단말기에서 측정하는 생체 신호들은 심전도, 체온, 산소포화도, 심박수, 호흡 등이며, 특히 이들 신호 중에 광용적맥파(PPG) 신호는 산소포화도와 심박수, 말초혈관 탄성도 등을 측정함에 있어 매우 중요한 신호이다. 그러나 이 PPG 신호는 환자 또는 사용자의 움직임에 따라 발생하는 동잡음의 영향에 의해 그 정밀도가 저하된다. 따라서 본 연구에서는 이러한 동잡음을 제거하기 위한 광변조 기법과 ICA 기법을 제안한다. 제안된 기법의 성능을 분석하기 위해 다양한 잡음을 인위적으로 가하여 실험하였으며, 실험 결과를 분석한 결과에서 제안된 기법이 기존의 적응 필터법 보다 우수한 성능을 보였다.
이주원,이병로 한국융합신호처리학회 2019 융합신호처리학회 논문지 (JISPS) Vol.20 No.3
최근 산업현장에서는 생산성, 품질, 고객 만족도를 향상시키기 위해 정보통신기술(ICT)을 기반으로 한 스마트 팩토리 체제로 전환하고 있다. 스마트 팩토리를 실현함에 있어 가장 중요한 장치는 무인 반송차(AGV)이며, AGV의 도입이 증가하고 있다. 일반적으로 AGV은 범용 PLC를 이용하여 개발하고 있으나, 범용 PLC로 개발된 AGV의 가격은 고가이며, 부피 또한 크다. 한편, 산업현장에서는 작업장의 공간적 제약 때문에 소형화, 용이한 재구성 등이 가능한 저가의 AGV를 요구하고 있다. 따라서 본 연구에서는 이러한 문제점을 해결하기 위해 PLC 내장형 AGV 제어기의 설계법을 제안하고, 그 성능을 평가하였다. 그 결과, 우수한 속도제어와 주행 정밀도(속도제어 오차=0.021[m/s], 주행자세제어의 평균오차 = 2.1[mm])를 보였다. 이와 같이 제안된 AGV 제어기를 산업현장에 적용한다면, 저비용으로 소형화와 재구성 등이 가능할 것이다. Recently, the industrial field has been changed to the smart factory system based on information and communication technology (ICT) in order to improve productivity, quality and customer satisfaction. The most important machine to realize the smart factory is the AGV(automatic guided vehicle) and the adoption of AGV is increasing. Generally, AGV is developed using general purpose PLC(Programmable Logic controller), but the price of AGV is expensive and its volume is large. On the other hand, the industrial field due to space constraints in the workplace is required the low cost AGV which can be minimization, expansion of function, and easily reconfiguration. Therefore, in order to solve these problems, this study is proposed a design method of AGV controller with built-in PLC, and evaluated its performance. In the results of the experimentation, it showed good performance (speed control error = 0.021[m/s], posture control error=2.1[mm]) for the speed and posture control. In this way, when applying the proposed AGV controller in this study to the industrial filed, it is possible to reduce the size and reconfigure at low cost.
단이론과 모멘트방법을 이용한 데옥시리보뉴클레오사이드의 평형상수의 계산 및 비교
이주원,노경호 ( Ju Weon Lee,Kyung Ho Row ) 한국공업화학회 1997 공업화학 Vol.8 No.3
데옥시리보뉴클레오사이드의 평형상수를 단이론과 모멘트방법에 의해서 일정 용매 조성법 역상 고성능 액체크로마토그래피(Reversed-Phase High Peformance Liquid Chromatography)를 이용하여 계산하였다. 이동상은 물을 기본으로 유기용매로서 acetonitrile과 methanole을 사용하였다. 단이론은 선형 흡착식으로부터 나온 모델로 일정한 유속으로 용매가 colunm의 단을 평형을 이루면서 지나간다는 가정 하에서 이루어졌다. 모멘트방법은 실험결과로부터 얻은 peak에서 첫 번째 절대 모멘트를 구하여 평형상수를 계산하는 방법이다. 이 두 가지 방법에 의한 다섯 가지의 데옥시리보뉴클레오사이드의 평형상수값은 서로 근사하였고, 용량인자를 이용하여 구한 평형상수의 값과도 비슷하였다. 평형상수는 이동상에서의 organic modifier의 양의 semi-log의 관계식으로 표시되었고 단이론에 의해 계산된 용출곡선은 실험값과 잘 일치하였다. The equilibrium constants of five deoxyribonucleosides (dCyd, dUrd, dGuo, dThd, dAdo) were estimated by the plate theory and the moment method under isocratic conditions of the Reversed-Phase High Performance Liquid Chromatography (RP-HPLC). The mobile phase in this system was composed of water and organic modifiers(acetonitrile and methanol). The plate theory of linear adsorption isotherm was treated on the basis of continuous flow of eluent through the plates of the column. The moment method was utilized to find the equilibrium constant from the first absolute moment of experimental data. The equilibrium constants of five deoxyribonucleosides in the two methods were very close, and also the equilibrium constants calculated by capacity factor were similar to those by both the plate theory and the moment method. The equilibrium constant was expressed as a semi-log function of the quantity of organic modifier. Excellent agreements between the calculated elution profile by the plate theory and the experimental data were observed.
이주원 한국형사판례연구회 2018 刑事判例硏究 Vol.26 No.-
Article 3(1) of the Act on Special Cases concerning the Settlement of Traffic Accidents (hereinafter ‘Traffic Special Act’) provides that “A driver of a vehicle who commits a crime provided for in Article 268 of the Criminal Act by reason of a traffic accident shall be punished by imprisonment without prison labor for not more than five years or by a fine not exceeding 20 million won”. This regulates Non-real Status Crime, and ‘traffic’ stipulated herein is interpreted as objective circumstances of conduct. Additionally, driver stipulated in the Traffic Special Act seems to be defined as ‘a person driving or who has driven.’ This stems from legislator’s preference for compressed expression in terms of legislative technical efficiency. It is understood to be the result of preference for ’driver’, which is a compressed expression, rather than the descriptive phrase such as “anyone who is under the circumstances of operating a vehicle or driving” (Article 3(1) of the Traffic Special Act, Article 151 of the Road Traffic Act is identical) or “anyone who is driving or have driven” (Article 3(1) & 4(1) of the Traffic Special Act). The background of the subject judgment corresponds to [Case 2] where a non-driver (different occupation), who is a person lacking status, collaborates with an ‘occupational’ driver, who is a person with status. In this case non-driver, who lacks the status as an ‘occupational’ driver, has a status for a different occupation, and consequently shall be punished according to the statutory penalty for Co-principals of Traffic Special Act along with the person with status as ‘occupational’ driver (Article 33 of the Criminal Act). The reason is that the person lacking status has its own unique occupational negligence derived from the different occupation apart from the occupational driver, being guilty as Co-Principals of Bodily Injury by Negligence of the Criminal Act - Article 3 of the Traffic Special Act supercede Article 268 of the Criminal Act based on the existence of special relation. As regards to the contravention of Article 3(1) of the Traffic Special Act, where ‘traffic’ situation, which is the condition of punishment, and 12 exception clauses, which are the conditions of prosecution, exist only in respect of occupational driver, the person lacking such status also is inevitably guilty for Co-Principals of Traffic Special Act. As an inevitable outcome, Article 3(2) of the Traffic Special Act, which is a special case of non-prosecution against the clearly expressed intention of the victim, also applies to the person lacking such status. However, since the Principle regarding the Indivisibility of Criminal Complaint does not apply to an offence which cannot be prosecuted against the clearly expressed intention of the victim, declaration of an injured party of his/her intention not to prosecute two or more Co-Principals does not take effect in respect to the other accomplices. Therefore, Article 4(1) of the Traffic Special Act, stipulating special cases of comprehensive insurance coverage, is interpreted to limit the scope of personal application to only ‘driver’ according to its literal reading. “Exceptions must be interpreted narrowly”(ingularia non sunt extendenda), which is a principle of limitation, must apply to the above. The subject judgment is evaluated to confirm the non-application of the special cases of insurance to non-driver, i.e. comprehensive insurance coverage not taking effect to non-driver. This point is at least considered to be in line with the established precedent that the principle of Subjective Indivisibility of Criminal Complaint shall not apply mutatis mutandis to offence which cannot be prosecuted against the clearly expressed intention of the victim. Nonetheless, it is extremely regrettable that the subject judgment only declares such purport without any detailed grounds.
적응 노치필터와 퍼지추론 시스템을 이용한 광용적 맥파 신호의 동잡음 제거 필터 설계
이주원,이병로 한국융합신호처리학회 2019 융합신호처리학회 논문지 (JISPS) Vol.20 No.1
When PPG signal is used in mobile healthcare devices, the accuracy of the measured heartbeat decreases from the influence by the movement of the user. The reason is that the frequency band of the noise overlaps the frequency band of the PPG signal. In order to remove these same noises, the methods using frequency analysis method or application of acceleration sensor have been investigated and showed excellent performance. However, in applying these methods to low-cost healthcare devices, it is difficult to apply these methods because of much processing time and sensor's cost. In order to solve these problems, this study proposed the filter design method using an adaptive notch filter and the fuzzy inference system to extract more accurate heart rate in real time and evaluated its performance. As results, it showed better results than the other methods. Based on the results, when applying the proposed method to design the mobile healthcare device, it is possible to measure the heartbeat more accurately in real time. 모바일 헬스케어 디바이스에서 가장 많이 사용되는 PPG 신호는 디바이스 사용자의 움직임의 영향에 따라 심박수 측정의 정확도가 떨어진다. 그 이유는 사용자의 동잡음의 주파수 대역이 PPG 신호의 주파수 대역과 겹쳐 있기 때문이다. 이러한 동잡음을 제거하기 위해 주파수 분석법, 가속도 센서 적용 등의 다양한 방법들이 연구되어 우수한 성능을 제시하였지만, 저가의 헬스케어 디바이스에 이들 필터법을 적용함에 있어 많은 연산처리 시간과 센서 가격 측면 때문에 적용하기가 어렵다. 이러한 문제점을 해결하기 위해 본 연구에서는 실시간으로 보다 정확한 심박수를 추출하기 위해 퍼지추론 시스템과 적응노치 필터를 이용한 PPG 신호처리 기법을 제안하고 그 성능을 평가하였다. 그 결과, 기존의 방법보다 우수한 결과를 보였으며, 이 결과를 토대로 제안된 방법을 모바일 헬스케어 디바이스 설계에 적용한다면 실시간으로 보다 정확한 심박수 측정이 가능할 것이다.
Intentionality and Conative Constructions in English
이주원 한국중원언어학회 2016 언어학연구 Vol.0 No.41
The primary purpose of this paper is to investigate the relation between intentionality and affectedness. Specifically, I make a semantic generalization called the Complementarity of Intentionality and Affectedness (CIA), which states that intentionality and affectedness cannot be entailed in a minimal accomplishment predicate (the combination of a verb and its complement(s) which is a causative accomplishment) at the same time. This mutual exclusivity of entailments of intentionality and affectedness is observed in Korean accomplishment predicates, which have multiple readings in which either the subject is necessarily intentional or the patient is necessarily affected, but not both. After the introduction of the CIA, I argue that English conative alternations are an instance of the CIA: The conative constructions (e.g. He kicked at the ball) entail intentionality, but not affectedness; on the contrary the corresponding transitive verb constructions (e.g. He kicked the ball) entail affectedness, but not intentionality. Finally, I discuss some predictions of the generalization and argue that the CIA can be further supported cross-linguistically.