젊은성인 엄지발가락가쪽휨증의 발허리발가락관절 각도와 엄지벌림근의 관계

강선영,정성대,김문환,전혜선,Kang, Sun-Young,Choung, Sung-Dae,Kim, Moon-Hwan,Jeon, Hye-Seon 대한물리치료학회 2014 대한물리치료학회지 Vol.26 No.2

Purpose: The aim of this study was to investigate relationship between the angle of the first metatarsophalangeal joint (1st MPJ) and the dimensions of the abductor hallucis; dorso-plantar (DP) thickness, medio-lateral (ML) width, and cross-sectional area (CSA), in subjects with and without hallux valgus. Methods: Sixty feet, mean (SD) age of 22.5 (2.1) years old, were included in this study (hallux valgus = 30; control = 30). An X-ray device was used for measurement of the angle of the 1st MPJ, and an ultrasound system was used for determination of mean (SD) DP thickness, ML width, and CSA of the abductor hallucis muscle in each foot from three trials. Results: The results showed the DP thickness, ML width, and CSA of the abductor hallucis did not differ significantly between subjects with and without hallux valgus. In addition, the correlations between the angle of the 1st MPJ and DP thickness, ML width, and CSA of the abductor hallucis showed poor correlation (Pearson r=-0.09, -0.20, and -0.18, respectively). Conclusion: Based on these findings, we speculate that morphological changes to the abductor hallucis muscle cannot be representative of the angle of the 1st MPJ, and also cannot be used in differentiation between subjects with and without hallux valgus.

저 선량 흉부 CT검사에서 Isocenter 불일치 시 CAD의 유용성 연구

강선영(Seon-Young Kang),이준협(Jun-Hyub Lee),김형철(Hyeong-Cheol Kim),이윤상(Yun-Sang Lee) 대한CT영상기술학회 2017 대한CT영상기술학회지 Vol.19 No.2

목적 : 컴퓨터 보조진단 활용의 폐 영역에서 저 선량일 때 Gantry aperture의 isocenter와 피사체 중심이 불일치하는 상황에서의 결절 검출을 통해 CAD의 유용성을 알아보고자 하였다. 대상 및 방법 : LungMan phantom내에 직경 3, 5, 8, 10, 12 mm의 고형결절 5개는 좌 폐에, 5, 8, 8, 10, 12 mm의 간유리 결절 5개는 우폐에 위치시킨다. LungMan을 Gantry aperture의 isocenter와 일치시킨 실험과, X-축 또는 Y-축 방향으로 30, 60, 90 mm, 이동시켜 실험하고 isocenter 불일치에 따른 Lung의 CT Number와 noise를 측정하여, 신호대잡음비(signal to noise ratio 이하, SNR)의 변화를 비교, 평가하였다. LungMan을 이동시켰을 때의 영상을 CAD를 이용하여 nodule 감별평가를 하였다. LungMan phantom내에 직경 8 mm의 일정한 크기와 재질의 고형 결절 20개를 정해진 배열 없이 위치시킨 후 LungMan을 Gantry aperture의 isocenter와 일치시켜 실험한 영상과, X-축 또는 Y-축 방향으로 30, 60, 90 mm 이동시킨 영상을 CAD로 분석하여 다수 결절에 대한 재현성을 평가하였다. 결과 : 1. LungMan이 Gantry aperture의 isocenter에서 X-축 또는 Y-축으로 멀어짐에 따라 CT Number와 noise는 증가하였고, SNR은 감소하였다. 2. 고형결절은 직경 5, 8, 10, 12 mm, 간유리결절은 직경 10, 12 mm의 결절이 LungMan의 중심을 X-축 또는 Y-축으로 이동시킴에 관계없이 모두 동일한 개수로 감별되었다. 3. 직경 8 mm의 일정한 재질의 고형 결절 20개는 세 번의 실험군에서 LungMan의 중심을 X-축 또는 Y-축 으로 이동시킴에 관계없이 모두 검출하였다. 결론 : CAD 프로그램은 저 선량과 isocenter 불일치 시 화질 저하의 조건에서 8 mm 고형결절의 검출 재현성이 우수하였으므로 유용한 보조진단의 도구가 될 수 있다. Purpose : The purpose of this study is to evaluate the usefulness of CAD in detection of nodules in the case of gantry aperture isocenter and object center discrepancy at low dose in the lung area of Computer-Aided Diagnosis. Materials and Methods : Five solid nodules with diameters of 3, 5, 8, 10, and 12 mm were placed in the left lung and Five GGO nodules with diameters of 5, 8, 8, 10, and 12 mm were placed in the right lung without alignment. Lungman was inspected in agreement with the isocenter of the gantry aperture and the Lungman was moved 30, 60 and 90 mm in the X or Y direction. After that, estimated CT number, noise and SNR of the lung according to the position change. 20 solid nodules of uniform size and material 8 mm in diameter were placed in the Lungman phantom without alignment. Lungman was inspected in agreement with the isocenter of the gantry aperture and the Lungman was moved 30, 60 and 90 mm in the X or Y direction. After that, the reproducibility of multiple nodules was evaluated. Results : 1. As Lungman moved away from the isocenter of the Gantry aperture away from the X-axis or Y-axis, CT Number and noise increased, and SNR decreased 2. The solid nodules were identified as 5, 8, 10, and 12 mm in diameter, and the GGO nodules were all of the same number irrespective of whether the 10 and 12 mm diameter nodules moved the center of the LungMan to the X-axis or Y-axis. 3. 20 solid nodules of uniform size and material, 8 mm in diameter, were detected in all three experimental changes without a defined arrangement, regardless of whether the LungMan was moved to the X-axis or the Y-axis. Conclusions : The CAD program can be a helpful diagnostic tool because of its excellent reproducibility of detection of 8 mm solid nodule under pool image quality conditions of low dose and isocenter inconsistency.

항공기 지상 이동 선입 선처리 스케줄링

강선영 ( Seon-young Kang ),박배선 ( Bae-seon Park ),이학태 ( Hak-tae Lee ) 한국항행학회 2017 韓國航行學會論文誌 Vol.21 No.1

공항 내에서의 효율적인 지상 교통 관리를 위하여 선입-선처리 (FCFS; first-come first-served) 알고리즘을 적용한 항공기 지상이동 스케줄러를 개발하였다. 본 스케줄러는 이전에 개발한 공역 내 교통 흐름 관리 스케줄러를 기반으로 하며, 지상 이동에 있어 추가적으로 요구되는 제약 조건인 링크의 방향성과 교차로 처리 등을 추가하였다. 추가된 각각의 제약 조건을 만족하는지 검증하기 위해 단순한 시나리오를 제작하여 시뮬레이션을 수행하였으며, 시뮬레이션 결과가 주어진 제약 조건을 만족하는 것을 확인하였다. 또한 제주 공항의 실제 항공기 출·도착 데이터인 FOIS (flight operation information system) 데이터를 기반으로 시나리오를 제작하여 시뮬레이션을 진행하였다. 개발한 스케줄러의 실효용성을 판단하기 위해, 실제 평균 지연시간과 스케줄러를 통해 산출한 평균 지연 시간을 비교하였다. An airport surface movement scheduler using first-come first-served (FCFS) algorithm is developed to efficiently manage surface traffic in an airport. It is based on the previously developed traffic flow management scheduler. Link directionality and intersection processing, which are additional constraints for ground movement, are added to the scheduler. To verify each of additional constraints, several simulations were performed by making simple scenarios, and the results show that all constraints were satisfied. Also, a simulation was performed by making a scenario based on flight operation information system (FOIS) data which is real departure and arrival flight data of Jeju airport. To determine the practicality of the developed scheduler, we compare the actual average delay time with the average delay time calculated by the scheduler.

HMR 패키지 디자인이 브랜드이미지와 구매태도 및 구매의도에 미치는 영향

강선영(Kang, Seon-Young),이경희(Lee, Kyung-Hee) 한국외식경영학회 2019 외식경영연구 Vol.22 No.5

본 연구는 HMR 패키지디자인의 속성이 잠재적 소비자들에게 어떻게 인식되는지 조사하고 이러한 가치가 브랜드이미지, 구매태도를 형성하고 구매의도로 이어지는 영향 관계를 파악하고 소비자들이 HMR 제품을 선택할 때 패키지디자인에 있어서 중요하다고 생각하는 디자인속성은 무엇이며 어떠한 브랜드이미지와 구매태도를 보이는지 이러한 영향이 구매의도로 까지 이어지는지 알아보는데 그 목적이 있다. 본 연구의 결과는 HMR 패키지디자인 속성의 경우 용기형태와 재질, 패키지디자인 이미지가 브랜드이미지에 유의한 영향을 미치며, 구매태도의 경우는 용기형태와 재질만 유의한 영향을 미치는 것으로 확인되었다. 추후 HMR 패키지디자인에 있어서 용기의 형태와 재질의 요소에 더 비중을 두고 고려해서 디자인을 기획한다면 잠재적 소비자에 대한 긍정적 브랜드이미지 증대 및 HMR 제품의 성과창출에 대한 전략적 시스템 구축에 대한 방향성에도 기여할 것이라 생각한다. The purpose of this study is to investigate how the attributes of HMR package design are perceived to potential consumers, to understand the relationship between these values forming brand images, purchasing attitudes, and purchasing intent, and to understand what design attributes consumers think are important in package design when choosing HMR products, and to what brand image and purchasing attitude these effects lead to purchase degree. The results of this study have been found to have a significant effect on the brand image and the container shape and material in the case of HMR package design attributes. If the design is planned with more emphasis on the shape and material elements of the container in future HMR package design, it will also contribute to enhancing positive brand image for potential consumers and direction for establishing a strategic system for generating performance of HMR products.

펄스자기장이 위팔 두갈래근의 지연성 근육통에 미치는 영향

강선영(Sun-young Kang),박주희(Joo-hee Park),전혜선(Hye-seon Jeon),이현숙(Hyun-sook Lee) 한국전문물리치료학회 2013 한국전문물리치료학회지 Vol.20 No.2

Delayed onset muscle soreness (DOMS) is a painful condition that arises from exercise-induced muscle damage after unaccustomed physical activities. Various therapeutic interventions have been applied to reduce the intensity and duration of DOMS-related symptoms. Recently, pulsed electromagnetic field (PEMF) intervention has been introduced as an alternative noninvasive treatment for DOMS. This randomized, double-blind, placebo-controlled experiment was conducted to examine the effects of PEMF therapy on DOMS in elbow flexors at 24, 48, and 72 hours after the experimental DOMS induction. Thirty healthy volunteers (23±2.4 yrs, 175±5.7 ㎝, and 74±7.8 ㎏) participated in this study. Each was randomly assigned to a PEMF or placebo group. On the first day, DOMS was induced in the elbow flexors by repeated isokinetic motions at low (60 °/s) and fast (120 °/s) speeds in all subjects. Thereafter, the PEMF group received 15-min daily treatment with a PEMF device. The placebo group received sham treatment of the same duration. Overall, PEMF application was more effective than the sham treatment in reducing the physiological symptoms associated with the DOMS including perceived soreness, median frequency, and electromechanical delay of the surface electromyography. In addition, median frequency and isokinetic peak torque of the PEMF group recovered to the pre-DOMS induction level earlier than the placebo group. In conclusion, this study suggests that PEMF can be applied as a new recovery strategy in reducing DOMS symptoms. Further experiments are required to examine the effect of the PEMF treatment on different types of exercise conditions and to determine the optimal treatment dosage and duration in a real clinical setting.

선입-선처리 알고리즘을 이용한 항공기 지상 이동 스케줄링

박배선(Bae-Seon Park),강선영(Seon-Young Kang),이학태(Hak-Tae Lee) 한국항공우주학회 2016 한국항공우주학회 학술발표회 논문집 Vol.2016 No.11

특별강연(特別講演) 및 학술연구(學術硏究) 발표요지(發表要旨) : 제2분야: 잡초 생리생태 ; Sulfonylurea 제초제 저항성 물달개비의 ALS 유전자 특성과 저항성 관련 돌연변이 구명을 위한 분자 생물학적 접근

박태선 ( Tae Seon Park ),강선영 ( Sun Young Kang ),허성기 ( Sung Ki Heu ),문병철 ( Beyung Chul Moon ),조정래 ( Jeong Rae Cho ),김도순 ( Do Soon Kim ),강충길 ( Chung Kil Kang ),박재읍 ( Jae Eup Park ) 한국잡초학회 2006 한국잡초학회 별책(학술대회 초록집) Vol.26 No.1

한국 논에서 확인된 Sulfonylurea(SU)계 제초제 저항성 및 감수성 물달개비(Monochoria vaginalis)의 Acetolactate Synthase(ALS) 유전자 염기서열 특성

박태선(Tae Seon Park),강선영(Sun Young Kang),허성기(Sung Ki Heu),김태완(Tae Wan Kim) 韓國雜草學會 2007 Weed&Turfgrass Science Vol.27 No.1

Diaminocyclohexane 을 배위자로 한 새로운 항암성 백금 (2) 착체류의 일반약리작용

고석태(Suk Tai Ko),강선영(Seon Yung Kang),임동윤(Dong Yoon Lim),신현준(Hyun June Shin),이승기(Seung Ki Lee),노영수(Young Soo Rho),정지창(Jee Chang Jung) 한국응용약물학회 1998 Biomolecules & Therapeutics(구 응용약물학회지) Vol.6 No.3

The general pharmacological properties of new platinum (II) coordination complexes, SA : [Pt (trans-ℓ-DACH)(DPPE)]·2NO₃, SB : [Pt(cis-DACH)(DPPP)] ·2NO₃ and SC : [Pt(cis-DACH)(DPPE)] ·2NO₃ on central nervous, respiratory, cardiovascular and digestive systems were studied in various experimental animals. These platinum (II) anticancer agents had no effects on analgesia, thiopental-induced sleeping time, body temperature, strychnine-induced convulsion, inflammation and local anesthetic action in mice and rats. Intestinal motility, stomach-ulcer induced by serotonin and bile-secretion of rats were not influenced by the dose of 30 ㎎/㎏. However SB and SC induced a mild decrease in heart rate in anesthetized rats. Based on these results, these new platinum (II) complexes may be regarded as a valuable lead compound in the development of new anticancer chemotherapeutic agents with marked antitumor activity and low toxicity.

핸드폰 사용이 목과 어깨 근육의 근육활성도와 피로도에 미치는 영향

박주희 ( Joo Hee Park ),강선영 ( Sun Young Kang ),전혜선 ( Hye Seon Jeon ) 한국전문물리치료학회 2013 한국전문물리치료학회지 Vol.20 No.3

본 연구는 성인 남자 17명을 대상으로 스마트폰을 장기간 사용하였을 때 목과 어깨 근육의 피로도 정도를 알아보았다. 20분 이상 핸드폰을 사용할 경우 양쪽 위등세모근과 목세움근의 중앙주파수가 유의하게 감소하였으며 양쪽 목세움근과 오른쪽 위등세모근의 근활성도(50th%APDF)가 유의하게 증가하였다. APDF범위는 양쪽 목세움근과 위등세모근 모두 유의하게 증가하였다. 이는 스마트폰을 20분 이상 사용하게 되면 피로도가 증가한다는 것을 나타낸다. 따라서 스마트폰 사용자는 스마트폰 사용 시 올바른 자세를 취하고, 중간에 휴식과 스트레칭 등의 예방적 행동을 취하기를 권고한다. The smart-phone has become a necessity for most people. In this study, we determined that using a smart-phone for 20 minutes can cause increased neck and shoulder muscle activities and fatigue. Seventeen healthy male smart-phone users who attended Yonsei University played a smart-phone game for 20 minutes and changes in their bilateral cervical erector spinae and upper trapezius muscle activities and fatigue were measured. To assess muscle activities and fatigue, we used the following variables: the median frequency, the 50th percentile Amplitude probability distribution function (APDF) value (median load), and the discrepancy in the 90th percentile APDF value and the 10th percentile APDF value (APDF range). A paired t-test was used to compare pre-smart-phone-use status with post-smart-phone-usestatus. The median frequency of the bilateral cervical erector spinae and the upper trapezius decreased significantly after 20 minutes of smart-phone use (p<.05). In addition, the 50th percentile APDF value of the bilateral cervical erector spinae and the right upper trapezius increased significantly (p<.05). The APDF range of the bilateral cervical erector spinae and the upper trapezius also increased significantly (p<.05). However, the 50th percentile APDF range of the left upper trapezius was not significantly different (p>.05). These findings suggest that using smart-phones for 20 minutes can induce muscle fatigue and increased neck and shoulder muscle activities.