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타이밍 벨트 마모 개선을 위한 벨트 트래킹 저감 및 풀리 플랜지 형상에 관한 연구
권희도(Kwon, Hee Do),장경익(Jang, Kyoung Ik),홍순재(Hong, Soon Jae),서인재(Seo, In Jae),양경준(Yang, Kyung Joon) 한국자동차공학회 2019 한국자동차공학회 부문종합 학술대회 Vol.2019 No.5
Pulley Flanges are designed to keep belt within the pulley. When it comes to design pulley flanges, it needs to be considered tracking force – lateral force of the belt as it attempts to move in one direction or another on the pulley. The Tracking force is related to timing belt drive system layout, components of belt drive system and belt constructions. There are various problems caused by the belt tracking force in all engines that use the timing belt system. In the initial development of the new U-engine, there was also a belt side wear problem due to belt tracking force. This paper reports the characteristics of tracking behavior and flange design on a New U 1.6 diesel engine. It shows that how to optimizing the belt tracking and the flange design to reduce timing belt side wear.
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Characteristics of the Homonymic Ambiguity Resolution in Preschool Children
Hee Kwon(권희),Kyunghee Jung(정경희) 한국언어청각임상학회 2019 Communication Sciences and Disorders Vol.24 No.3
배경 및 목적: 본 연구는 3-5세 아동들을 대상으로 동음이의어 모호성 해결력 차이를 알아보고자 하였다. 방법: 연구대상은 3-5세 아동으로 연령집단 간 10명씩 총 30명으로 정상발달로 보고된 아동이며, 수용어휘력이 정상발달을 보이는 아동이다. 연구의 과제는 동음이의어가 대립된 한 문장을 포함한 4컷의 그림으로 구성하였다. 검사자가 아동에게 그림을 제시하며 이야기를 설명해 주고, 아동이 보조자에게 다시 이야기를 해 주었다. 결과: 동음이의어 모호성 이해수는 3세와 5세, 4세와 5세 집단 간 유의한 차이가 있었다. 동음이의어 모호성 해결 수에서도 3세와 5세 집단, 4세와 5세 집단에 유의미한 차이가 나타났다. 동음이의어 모호성 해결 총 시도수에서 3세와 5세 집단, 4세와 5세 집단 사이에 유의미한 차이가 나타났으며, 동음이의어 모호성 해결성공률에서도 3세와 5세 집단, 4세와 5세 집단에 유의미한 차이가 나타났다. 동음이의어 모호성 해결유형 중 구어해결률에서 3세와 5세 집단, 4세와 5세 집단에 유의미한 차이가 나타났으나, 구어+제스처 해결률에서는 유의미한 차이가 나타나지 않았다. 구어+제스처 해결 시 사용한 제스처 유형 중 지시적·도상적 제스처 두 유형 모두 집단 간 유의미한 차이가 나타나지 않았다. 논의 및 결론: 위의 결과로 보아, 동음이의어 모호성 이해와 해결에 4-5세에 발달하는 것임을 알 수 있었다. 동음이의어 모호성 총 시도수와 해결성공률의 측면에서는 연령이 늘어남에 따라 시도수는 줄어들고, 해결성공률이 높아짐을 알 수 있었다. Objectives: This study purposed to examine differences in ability to resolve homonymic ambiguity among children aged 3 to 5. Methods: A total of 30 typically developing preschool children aged 3 to 5 participated in this study, and each age group had 10 children. Results: The study results are summarized as follows: first, the number of children who comprehended homonymic ambiguity was significantly different between 3- and 5-year-old children, as well as between 4- and 5-year-old children. Second, the total number of attempts to resolve homonymic ambiguity was significantly different between 3 and 5 years old as well as between 4 and 5 years old. The success rate of resolving homonymic ambiguity was also significantly different between 3 and 5 years old as well as between 4 and 5 years old. Third, the colloquial language resolution rate among the homonymic ambiguity resolution types was significantly different between 3- and 5-year-old children as well as between 4- and 5-year-old children. However, the resolution rate that involved the use of both colloquial language and gestures was not different between the groups. Fourth, the use of deictic and iconic gestures, which are gesture types used in the case of resolution through the use of both colloquial language and gestures, was not significantly different between the groups. Although the statistics did not show significant difference, 3 years old often used deictic gestures, and 4 years old frequently used deictic and iconic gestures, and 5 years old used iconic gestures relatively frequently. Conclusion: Based upon the results mentioned above, it appeared that the ability to comprehend and resolve homonymic ambiguity develops at the age of 4 and 5. And the number of attempts by 5 years old decreased, and their success rate increased.
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권희(Hee Kwon),정경희(Kyung Hee Jung) 한국언어치료학회 2016 한국언어치료학회 학술발표대회 논문집 Vol.2016 No.12
Purpose: This study purposes to figure out the difference of the ability to resolve homonymic ambiguity among children aged three to five. Methods: The study targets were children aged three to five, and each age group had 10 children, corresponding to a total of 30 children who participated in the study. The study task consisted of four separate pictures in one frame, and one of the pictures had a sentence with the opposite meaning of the homonym. Results: First, the number of children who comprehended homonymic ambiguity was significantly different between three years old and five years old as well as four years old and five years old. The number of children who resolved homonymic ambiguity was also significantly different between three years old and five years old as well as four years old and five years old. However, the number of children who comprehended and resolved homonymic ambiguity was not significantly different between three years old and four years old. Second, the total number of attempts to resolve homonymic ambiguity was significantly different between three years old and five years old as well as four years old and five years old. The success rate of resolving homonymic ambiguity was also significantly different between three years old and five years old as well as four years old and five years old. Third, the colloquial language resolution rate among the homonymic ambiguity resolution types was significantly different between three years old and five years old as well as four years old and five years old. However, the resolution rate that involves the use of both colloquial language and gestures was not different between the groups. Fourth, the use of deictic and iconic gestures, which are gesture types used in the case of resolution through the use of both colloquial language and gestures, was not significantly different between the groups. Although the statistics did not show significant difference, three years old often used deictic gestures, and four years old frequently used deictic and iconic gestures, and five years old used iconic gestures relatively frequently. Conclusions: Based upon the results mentioned above, it appeared that the ability to comprehend and resolve homonymic ambiguity develops in the age of four and five. And the number of attempts by five years old decreased, and their success rate increased.
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유방암 환자 대상 모바일 영양관리서비스 적용 및 효과 평가
최지희(Ji Hee Choi),박선주(Seon-Joo Park),권희(Hee Kwon),이해정(Hae-Jeung Lee) 한국영양학회 2020 Journal of Nutrition and Health Vol.53 No.1
본 연구는 비만과 영양 관리가 필요한 30세 이상의 유방암 환자 43명을 대상으로 모바일 기기를 활용하여 영양관리를 통한 비만 및 식습관 개선 효과를 조사하였다. 중재 연구 이후 시험군의 체중은 통계적으로 유의하지는 않았으나 0.8 ㎏ 감소하였으며, WHR은 0.75에서 0.71로 유의하게 감소하였다 (p = 0.012). 또한 영양지수가 61.3점에서 69.6점으로 유의적으로 높아졌으나 (p < 0.001) 대조군은 61.5점에서 59.0점으로 유의적으로 낮아졌으며 (p = 0.002) 중재 후 영양지수 변화를 두 군 간에 비교한 결과에서도 유의적인 차이가 있는 것으로 나타났다 (p < 0.001). 식품섭취빈도 조사 결과에서 과일, 우유 및 유제품, 콩 및 콩제품, 생선 및 조개류, 육류 및 육가공품, 가금류, 견과류 섭취빈도의 경우 시험군에서만 유의적으로 증가하였으며, 과자 및 달거나 기름진 빵, 라면류, 외식 또는 배달음식의 섭취빈도는 시험군에서만 유의적으로 감소하였다. 식이기록법 결과에서도 비타민C, 칼륨, 철분 섭취량이 유의적으로 증가하여 시험군의 식습관이 전체적으로 개선된 것을 확인할 수 있었다. 그러나 본 연구는 중재기간이 4주밖에 되지 않아 신체활동과 삶의 질의 경우 시험군과 대조군을 비교하였을 때 뚜렷한 효과가 관찰되지 않았다. 따라서 이러한 연구 결과를 활용하여 유방암환자들을 위한 비만 관리 프로그램의 기초자료로 활용할 수 있을 것으로 사료된다. Purpose: This study evaluated the effects of nutrition management application in a mobile device on obesity management of patients with breast cancer. Methods: Fifty subjects, who were breast cancer survivors, aged 30 years and older, participated in an obesity management program for four weeks. They were divided randomly into two groups: a control group (n = 25) and a treatment group (n = 25). The treatment group was provided an application for nutrition management and diet consultant, while the control group maintained their ordinary life without any nutrition management. Results: The weight of the treatment group decreased by 0.8 kg, but the change was not significant. In contrast, the waist-hip ratio of the treatment group decreased significantly from 0.75 to 0.71 (p = 0.012). The Nutrition Quotients of the treatment group increased significantly from 61.3 to 69.6 points (p < 0.001), whereas that of the control group decreased significantly from 61.5 to 59.0 (p = 0.002). Conclusion: This mobile nutrition management application for breast cancer patients is effective in managing obesity and dietary habits. These results can be used as basic information to prepare an obesity management program for breast cancer patients.
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감염성 경골 불유합에 시행한 혈관 부착 유리 피부편 및 생비골 이식 수술의 임상적 고찰
송준민,김진일,권희,유재응,박종석,나수균,최창욱,Song, Joon-Min,Kim, Jin-Ill,Kwon, Hee,Yoo, Jae-Eung,Park, Jong-Suk,Rah, Soo-Kyoon,Choi, Chang-Uk 대한미세수술학회 2000 Archives of reconstructive microsurgery Vol.9 No.1
February 1995 to September 1999, authors have experienced seven cases of infected nonunion of tibial fractures with associated soft tissue injury and skin defect, and have accomplished union in all cases by free vascularized fibular graft. All grafts healed with no radiographic evidence of bone necrosis or resorption and have been able to treat large bony defect and skin defect simultaneously. In this study, five cases of vascularized free fibular osteocutaneous flap transfer and two cases of free fibular graft are reported. All of seven cases were infected nonunion of tibia. The results were obtained as follows 1) The mean duration of the radiologic bone union was average 5.3months. 2) Grafted fibular has been hypertrophied, average 10.6 months. 3) In five cases of preservation of posterior cortex of tibia, bony union and hypertrophy of grafted bone were earlier than that two cases of complete segmental resection of tibia. 4) In two cases which only free vascularized fibular graft were performed because achievement of cutaneous flap was failed, authors found that soft tissue defect was filled with granulation tissue and split-thickness skin graft was possible over the granulation tissue after 3 weeks postoperatively.
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