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신수현,이상룡,정재한,Shin, Soo-Hyun,Lee, Sang-Ryong,Jung, Jae-Han 대한기계학회 2002 大韓機械學會論文集A Vol.26 No.7
Recently, linear motors are applied to many small precision products. Thus high generating power with small size is required of it. In order to increase the motor efficiency, the design variables need to be optimized. In this study, Vector Fields FEM software, OPERA-3d, was used for simulating linear motor. The thrust and magnetic flux density at the air-gap center were simulated and compared with the experimental results. Taguchi method was applied to investigate the effects of each variables. As a result, the thickness of conductor and magnet was important for the thrust but the thickness of the yoke. The temperature of the conductor was determined by finding the thermal conductivity that was determined by experimentation. Correlation equation relating to the thrust and temperature was proposed by Latin square and Least Square method. The optimum design variables were determined by correlation equation, and compared with simulation results. According to this analysis, thrust force of linear motor was improved about 7% comparing with conventional model.
Preference of Verb Thematic Role Assignment and Verb Selection Abilities in Persons with Aphasia
신수현(Suhyun Shin),성지은(Jee Eun Sung) 한국언어청각임상학회 2020 Communication Sciences and Disorders Vol.25 No.4
배경 및 목적: 본 연구는 실어증 환자의 의미역(대상, 도구)의 선호를 파악하고 해당 의미역과 동사 연결 능력의 차이를 알아보고자 한다. 방법: 서울특별시 및 경기 지역에 거주하며 연령 및 교육년수를 일치시킨 실어증 환자 18명, 정상 성인 20명을 대상으로 하였다. 의미역 선호도 과제는 선호도 비율(%), 동사 선택 과제는 정반응률(%)을 측정하였다. 결과: 첫째, 두 집단 모두 대상을 도구보다 선호하였다. 이것은 한국어 의미역 체계에서의 대상이 도구보다 위계가 높기 때문이다. 둘째, 동사 선택 과제에서 실어증 환자의 수행도가 더 낮았다. 이는 실어증 환자가 문장에 있어 동사와 그를 구성하는 요소에 접근하는 데 어려움을 보이기 때문으로 해석된다. 과제에 따른 수행도는 차이가 유의하지 않았으나 실어증 환자는 도구에 높은 정반응률을 보였다. 이는 도구 의미역이 동사와 연결될 때 대상에 비하여 더욱 활성화되기 때문이다. 셋째, 두 의미역 모두 실어증 중증도와 강한 상관관계를 보였으며 실어증 중증도를 유의하게 예측한 것은 대상 의미역으로, 74.5%로 예측하였다. 이는 실어증 환자 역시 논항의 필수 여부에 따라 영향을 받는다고 해석된다. 논의 및 결론: 실어증 환자의 의미역 선호는 그 위계에 영향을 받으나 의미역과 동사의 연결에서는 통사 구조보다는 의미 연결을 통한 활성화에 영향을 받는다. 따라서 실어증 환자의 중재나 평가 시 의미역을 고려할 필요가 있다. Objectives: The purpose of this study was to identify preferences of thematic role assignment in aphasia patients and to figure out the connection between thematic roles and verbs. Methods: Eighteen persons with aphasia and twenty individuals who matched their age and years of education and lived in Seoul or Gyeonggi participated in this study. The thematic role preference task measured ratio (%) of thematic role preference and the verb selection task measured accuracy (%). Results: First, both groups preferred theme to instrument. This can be interpreted to mean that in Korean thematic role hierarchy, theme is higher than the instrument. Second, the performance of persons with aphasia in the verb selection task was lower. This means that persons with aphasia have difficulty accessing verbs and the elements in their sentences. The difference in performance of the task was not significant, but persons with aphasia had a higher accuracy than the instrument. This can be interpreted as showing that the instrument becomes more active than theme when connected to verb. Third, both thematic roles showed strong correlations with aphasia severity. Theme was the prediction of aphasia severity approximately 74.5% of the time. This showed that persons with aphasia are also affected by the necessity of the argument. Conclusion: The preference of thematic role in persons with aphasia is influenced by its hierarchy. But in the connection of thematic role and verb, it is influenced by activation through semantic relation rather than syntactic structure. In particular, theme is a variable that predicts the aphasia severity.
연속적인 파형 신호를 시분할한 고효율 드론 재머에 관한 연구
신수현(Soo-Hyun Shin),최성연(Sung-Yun Choi) 한국정보기술학회 2020 한국정보기술학회논문지 Vol.18 No.12
This paper is a study on the signal source of a device that generates a strong radio wave disturbance signal to prevent the aircraft from flying when an aircraft for illegal or military purposes enters an important protected area. As a result, the communication distance between the anti-drone system and the flight vehicle is maximized, and the low power operation of the anti-drone system is studied to realize the miniaturization and light weight of the device, and the rapid movement and launch of the guard is guaranteed. As a result, the communication distance between the anti-drone system and the aircraft is maximized, and by studying the low-power operation of the anti-drone system, the device is miniaturized and lightweight, and rapid movement and launch are guaranteed. Therefore, the aim of the study is to prevent entry of illegal aircraft such as aircraft crash and aircraft malfunction within the protected area. It is also intended to prevent transmission of collected information by removing the collected information or by disabling communication between the aircraft and the control station.
학군과 부모의 교육적 태도가 자녀의 사교육과 영어 학업성취도에 미치는 영향
신수현(Shin, Soohyun),고정민(Ko Jungmin) 한국영어교과교육학회 2011 영어교과교육 Vol.10 No.2
This study examines how school district and parents' educational involvement in their children's English education influence children's private education and achievement in English. Survey questions were given to 384 high school students, half of whom belonged to one academic high school in school district 8 and the other half of whom were in another school district. The students in the first group show better results than the latter in terms of the parents' educational periods, monthly earnings, educational attitudes to their children as well as the cost paid for their children's English private education. Also, the students whose parents have active attitude in their children's English education show higher scores in English achievement tests and benefit more from private education. EBS is the most popular private education whereas after school program is the least popular.
신수현(Shin, Su-Hyun),정철웅(Cheong, Cheol-Ung),김덕환(Kim, Duck-Whan),정성수(Jung, Sung-Soo) 한국소음진동공학회 2010 한국소음진동공학회 논문집 Vol.20 No.7
Among various elements to affect customer's evaluation of vehicle quality, BSR(Buzz, Squeak, Rattle) are considered to be a mostly contributing factor. In this paper, we provide the test method which can be used to reduce the BSR noise of instrument panel in a vehicle. First, potential source regions of the instrument panel for BSR are localized by using the vibration-excitor and near-acoustic field visualization system. Then, subjective evaluation of BSR noise from the detected potential noise source regions is made with the Zwicker's loudness and time-varying loudness methods. This illustrative analysis reveals that current experimental methods can be used as a test procedure to systematically tackle BSR issues in early stage of the vehicle development cycle, which can result in the reduction of the production cost.
신수현(Shin, Su-Hyun),정성수(Jung, Sung-Soo),이용봉(Lee, Yong-Bong),이두희(Lee, Doo-Hee),남효덕(Nam, Hyo-Duk) 한국소음진동공학회 2005 한국소음진동공학회 논문집 Vol.15 No.2
It is well known that the loss factor and Young's modulus are fundamental mechanical properties of materials. Recently, the use of complex plastics is increasing for vibration proof. In this study, we evaluated two mechanical values of polycarbonate and acrylonitrile butadiene styrene by using two different standard test methods of ASTM E 756 and ISO 6721. Because damping properties of material generally depend on temperature, test specimen‘s temperature were controlled in the temperature range between - $10^{\circ}C\;and\;60^{\circ}C$. The results shown that the loss factor of polycarbonate gradually increased as increasing temperature, while the Young's modulus decreased. However, the loss factor and the Young's modulus of acrylonitrile butadiene styrene are varied somewhat at $60^{\circ}C$.
신수현(Shin Soo-Hyun),한선주(Han Sun-Ju) 한국인체미용예술학회 2006 한국인체미용예술학회지 Vol.7 No.2
Fashion is social environment and life culture that reflect public consumption desire as culture phenomenon, and there were more constituents of personality expression than tradition by effect of mallet scum.<BR> Effect that fashion structure of fashion musician that do pop gets to young star is giving more publics a lot of effects than other entertainers because have model of reappearance. To derive interest of consumers, various and new marketing technique is expressed in musician record and star seeks effect and he adwaters of fashion, unique hair style and fashion to be spread creating fashion.<BR> I wish to study indispensable relation of stream of fashion that various concept style of returns to relation with marketing and music and publics a musician.