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센서 동작 특성과 패리티 방정식을 이용한 차량용 모터의 센서 모듈 고장 검출 및 분리
우지윤(Jiyoon Woo),전남주(Namju Jeon),이형철(Hyeongcheol Lee) 한국자동차공학회 2012 한국자동차공학회 학술대회 및 전시회 Vol.2012 No.11
This paper suggests the fault detection and isolation (FDI) algorithm for a stable control of the interior permanent magnet synchronous motor (IPMSM) by using the model based application. The fault signals of the phase current sensor are detected by using the parity equation and those of the resolver sensor are detected by using its operating characteristics. The FDI algorithm contains some residual signals that represent the difference between detected values of the sensor and calculated values of the developed model. Before simulating the model, the fault models of the current sensor and the resolver sensor are applied on the IPMSM model and controller developed by Matlab/Simulink program. The proposed FDI algorithm is verified on the environment containing the system model.
지방대학생의 불확실성에 대한 인내력 부족과 진로불안의 관계 : 사회비교경향성과 자기자비의 순차적 매개효과
우지윤(Woo, Ji Yun),김영화(Kim, Young Hwa) 학습자중심교과교육학회 2021 학습자중심교과교육연구 Vol.21 No.13
목적 본 연구의 목적은 지방대학생이 인식하는 불확실성에 대한 인내력 부족과 진로불안의 관계에서 사회비교경향성과 자기자비의 순차적 매개효과를 탐색하여 지방대학생의 진로발달 지원을 위한 기초 자료를 제공하는 것이다. 방법 이를 위해 지방대학생 290명을 대상으로 진로불안, 불확실성에 대한 인내력 부족, 사회비교경향성, 자기자비, 인구통계학적 특성으로 구성된 설문을 실시한 후 진로불안을 준거변인으로, 불확실성에 대한 인내력 부족을 예측변인으로 설정한 후 이들 간의 관계에서 사회비교경향성과 자기자비가 순차적 매개효과를 보이는지 탐색하였다. 결과 수집된 자료를 분석한 주요 결과는 다음과 같다. 첫째, 진로불안은 불확실성에 대한 인내력 부족, 사회비교경향성과는 유의한 정적 상관관계를, 자기자비와는 유의한 부적 상관관계를 나타내었다. 둘째, 불확실성에 대한 인내력 부족과 진로불안의 관계에서 사회비교경향성, 자기자비의 순차적 매개효과를 검증한 결과 불확실성에 대한 인내력 부족이 높을수록 높은 사회비교경향성이 나타나고, 이는 곧 낮은 자기자비로 연결되어, 높은 진로불안으로 이어지는 간접 경로가 유의한 것으로 확인되었다. 결론 이러한 연구결과를 토대로 지방대학생이 경험하는 진로불안을 조력하기 위한 진로상담 및 서비스에 대한 시사점을 논하고, 본 연구의 제한점 및 후속연구에 대한 제언을 논의하였다. Objectives The purpose of the current study was to examine the serial mediating effects of social comparison orientation and self compassion on the relationship between intolerance of uncertainty and career anxiety for college students in non-Seoul-Metropolitan-Area Methods A sample of 290 college students in non-Seoul areas completed self-report surveys on career anxiety, intolerance of uncertainty, social comparison orientation, and self-compassion. Multiple regression analysis and bootstrapping was applied to test the serial mediation of social comparison orientation and self-compassion on the relationship between intolerance of uncertainty and career anxiety. Results The results showed that intolerance of uncertainty and social comparison orientation were positively correlated with career anxiety. Meanwhile, self compassion was negatively correlated with career anxiety. Additionally, social comparison orientation and self-compassions were found to mediate the relationship between intolerance of uncertainty and career anxiety. Conclusions Overall, results suggest the need for further investigation of the important role of social comparison and self-compassion related to uncertainty tolerance and career anxiety of college students in non-Seoul areas. Based on the findings of this study, the researchers discussed ways to improve career counseling and services at non-Seoul areas to support college students who experience emotional difficulties in their career development. Limitations and implications for future research were also discussed.
대학 스포츠동아리 참여재미, 지각된 친구관계 질, 대학생활만족 간의 가설적 인과모형
우지윤(Ji Yun Woo),박현권(Hyeon Kwon Park),이혁기(Hyuck Gi Lee) 한국사회체육학회 2014 한국사회체육학회지 Vol.0 No.56
This study closely examined the casual relationship between sports enjoyment, friendship quality of university students sports club and college life satisfaction. For this, I select college students as a population, who participate in university students sports club currently. First of all, I surveyed for 300 university students sampled, who currently participate in university students sports circle on each A, B and C universities. I have obtain 233 survey results as valid sample except 67 survey results that are not appropriated marked an omission, an entry twice over, and biased out of 300 survey returned. The method of analysis is used structure equation model analysis by utilizing AMOS 18.0, which is a statistical package program, and significance level are set as .05. The results of the study are followed. First, sports enjoyment of university students sports club directly affects to friendship quality scale meaningfully. Second, sports enjoyment of university students sports club directly and indirectly affects to college life satisfaction meaningfully. Finally, friendship quality scale of university students sports circle directly affects to college life satisfaction meaningfully.
웨어러블 디바이스에 적용되는 서비스디자인 발전방향에 관한 연구 - 스마트밴드에 적용되는 헬스케어 사용자 중심 서비스 디자인을 중심으로
우지윤(Ji Yun Woo),최명식(myeong sik Choi) 경희대학교 산학협력단 예술디자인연구원 2016 예술· 디자인학연구 Vol.19 No.1
This study starts from the study of design services that apply to wearable devices. So this study is health care services in a variety of designs applied on smart band of wearable devices. Analyzing about the leading smart brands of smart brand, that service is only focus on collecting personnel health data. However, if access to the user-centered healthcare services can be seen through the case that the general health as well as to provide different kinds of services. Therefore, to develop the health care service, it should develop into a personnel health care systme form that can be through specialist consultation feedback with self-monitoring and health data collection.
김현아 ( Hyun Ah Kim ),우지윤 ( Ji Woon Woo ) 한국감성과학회 2014 감성과학 Vol.17 No.1
This paper investigates the physical properties such as water absorption, drying and hygral expansion of moisture responded transformable fibers and their knitted fabrics including dyeing characteristics according to the different dyeing time and temperature. For this purpose, three kinds of covered filament yarn specimens using HEF and spandex as core and PET, aero cool as a covering filament were prepared. The knitted fabric specimens were made using three kinds yarn specimens and dyed with different dyeing temperature and time. The moisture absorption, drying and hygral expansion of three kinds of knitted fabric specimens were measured and discussed with yarn structure. The wearing performance of these knitted fabric specimens were also measured and discussed with yarn characteristics using FAST system. Finally, the dyeing characteristics such as dye affinity, color difference and color fastness to washing of these knitted fabric specimens were measured and discussed with different dyeing temperature and time for examining dyeing process performance of these moisture responded transformable knitted fabrics.
다발성 골수종 환자에서 Lenalidomide와 Thalidomide에 의한 말초신경병증 발병 비교 연구
이소희(So Hee Lee),우지윤(Ji Yun Woo),황보신이(Shin Yi Hwangbo),민미나(Mi Na Min),한옥연(Ok Youn Han) 대한약학회 2020 약학회지 Vol.64 No.6
Lenalidomide (LD) inhibits angiogenesis and exerts immunosuppressive effects. It has been used to treatmultiple myeloma and is known to show positive differences in side effects compared to thalidomide (TD). Peripheralneuropathy, one of the most common complications of TD, has been reported to be less frequent with LD treatment. However, no local study has been conducted to compare the incidence of peripheral neuropathy associated with TD andLD administration. Therefore, this study was performed to investigate the appearance, aggravation, or improvement ofperipheral neuropathy and the relevant risk factors in patients treated with LD and TD. The electronic medical records of169 patients with multiple myeloma who had been treated with LD and TD in a tertiary hospital between March 2014and March 2015 were retrospectively reviewed. There were 85 patients in the LD group and 84 patients in the TD groupfor the final analysis. An increase in severity of peripheral neuropathy after treatment was observed in 2.4% and 19.1%of patients in the LD and TD groups, respectively (p<0.001). Six patients in the TD group showed two or more increasesin grade. In total, 48.2% in the LD group and 10.7% in the TD group (p<0.001) continued chemotherapy without anyaggravation of peripheral neuropathy. The patients treated with LD showed less increase in severity of peripheralneuropathy compared with those treated with TD. A significant difference was observed between the groups in thepercentage of patients who continued treatment without peripheral neuropathy aggravation.