견갑 - 골반 동시 사용 패턴이 뇌졸중 환자의 보행요소에 미치는 효과

김승지,최재원,정현애,Kim, Seung-Ji,Choi, Jae-Won,Chung, Hyun-Ae 대한고유수용성신경근촉진법학회 2016 PNF and Movement Vol.14 No.2

Purpose: This study used a comparative analysis to propose the effectiveness of using scapular and pelvic patterns of proprioceptive neuromuscular facilitation simultaneously (USPS) on the components of gait in patients with stroke. Methods: Subjects who signed a written consent form to participate in the experiment and attended voluntarily were divided randomly into two groups: the USPS group (12) and the control group (9). The USPS group received pattern training for 30 minutes a day, 3 days per week for 6 weeks. The control group received general physical exercise for the same duration. Gait ability was tested and analyzed before and after the 6 weeks of training with the GAITRite system. Results: The components of gait increased significantly in the USPS group after training (p < 0.05) and did not increase significantly in the control group. Conclusion: According to the results of this study, USPS training improves the components of gait more than general physical exercise. The USPS training method is effective for improving motor functions in patients with stroke, especially for gait rehabilitation.

전기버스를 위한 배터리 자동 교환-충전인프라 배치 최적화 모형개발 및 적용 사례 분석

김승지,김원규,김병종,임현섭 한국ITS학회 2013 한국ITS학회논문지 Vol.12 No.1

전 세계적으로 지구온난화로 인한 환경문제가 심각한 위기로 인식되어지면서 세계 각국에서는 전 산업분야에 걸쳐 이산화탄소 배출을 줄이고자 노력하고 있다. 국내 에너지 부문 CO2 배출량의 약 20%를 차지하는 수송 분야의 이산화탄소 배출을 감소시키기 위해서는 전기자동차 보급 확산이 필수적이다. 최근 정부에서 전기자동차 보급 활성화를 위해 많은 노력을 기울이고 있으나 긴 충전시간과 배터리의 가격에 의한 비싼 차량가격, 짧고 불규칙한 운행거리와 부족한 충전인프라 등으로 인하여 향후 전기자동차의 보급 확대는 매우 불투명한 상태이다. 이러한 단점을 해결하고 효과적으로 전기자동차를 보급할 수 있는 방법 중 하나가 바로 배터리 공용제 기반의 배터리 자동교환형 전기자동차 시스템이다. 이를 위해서는 배터리를 자동으로 교환해주는 시설인 배터리 교환소 (BSS: Battery Swapping Stations)가 필요하게 되는데, BSS는 배터리 교환을 통해 전기자동차가 긴 충전시간을 소모할 필요 없이 짧은 시간 내에 배터리를 충전하고 이동할 수 있도록 하는 시스템이다. 이러한 시스템을 대중교통, 특히 공공버스에 적용함으로써 보다 빠른 시간 안에 전기자동차를 보급, 확산시키는 것이 가능하다. 일반버스를 전기버스로 전환하여 버스 노선을 운영할 경우 전기버스가 중간에 멈추지 않도록 적절한 위치에 충전시설을 구축할 필요가 있다. 전기버스에 대한 충전시설은 버스 노선의 기·종점 및 기존 버스정류장에 추가로 설치하여 버스가 승객의 승·하차를 위해 정차할 때 신속하게 배터리를 교환할 수 있게 구축해야 한다. 본 연구에서는 전기버스를 위한 배터리 자동교환충전시설의 위치선정 문제를 Set Covering Problem에 적용하여 해결하였다. 배터리 충전 시 최대 주행거리를 영향권으로 설정하였으며 메타 휴리스틱 기법인 그리디 알고리즘을 활용하여 배터리 교환형 충전인프라 배치 최적화 모델을 개발하였고 현재 운영 중인 서울시의 버스노선을 대상으로 실제 충전시설의 위치를 선정하였다. This paper propose an efficient algorithm for selecting electric bus charging facility location. In nature, the optimal charging facility location problem is similar to Set Covering Problem. Set Covering Problem is the problem of covering all the rows of an m×n matrix of ones and zeros by a subset of columns with a minimal cost. It has many practical applications of modeling of real world problems. The Set Covering Problem has been proven to be NP-Complete. In order to overcome the computational complexity involved in seeking optimal solutions, this paper present an enhanced greedy algorithm and simulated annealing algorithm. In this paper, we apply the developed algorithm to Seoul's public bus system.

Determination of Tricuspid Regurgitation Velocity/Pulmonary Artery Flow Velocity Time Integral in Dogs with Pulmonary Hypertension

김승지,오다영,이시헌,홍성균,최민철,윤정희 한국임상수의학회 2020 한국임상수의학회지 Vol.37 No.4

This retrospective, echocardiographic study using 144 dogs with clear systolic tricuspid regurgitation on Doppler echocardiography was performed to determine the diagnostic value of the systolic tricuspid regurgitation velocity/pulmonary artery flow velocity time integral to predict the Doppler estimates of dogs with tricuspid regurgitation pressure gradient compared with other cardiac indices of pulmonary hypertension, and to investigate a cutoff value to select patients with a potentially poor outcome. The systolic tricuspid regurgitation velocity/pulmonary artery flow velocity time integral increased significantly as the severity of pulmonary hypertension increased and had a correlation coefficient that was analogous to those of other conventional cardiac indices. A cutoff value greater 1.65 provided the best-balanced sensitivity (84%) and specificity (80%) in determining patients with a poor prognosis. In conclusion, the systolic tricuspid regurgitation velocity/pulmonary artery flow velocity time integral is readily obtained using routine echocardiography and could provide a non-invasive, novel, and supplementary index for evaluating dogs with pulmonary hypertension as useful prognostic criteria, particularly in those with advanced pulmonary hypertension.

두근두근, 생애 첫 투표!

김승지 열린전북 2010 열린전북 Vol.2010 No.6

2015 개정 초등 과학 교과서의 읽기 자료 분석-5, 6학년 국정 및 검정교과서를 중심으로-

김승지,박일우 한국현장과학교육학회 2023 현장과학교육 Vol.17 No.3

This study analyzed reading materials in the government-issued and certified 5th and 6th grade science textbooks according to the 2015 revised curriculum. The analysis focused on the purpose, arrangement pattern, content topics, presentation format and whether student activities were presented. The primary purpose of the reading materials was found to be stimulating interest. In some of the certified textbooks, reading materials were included in the unit lesson plan. Content topics in certified textbooks tended to be more diverse compared to the government-issued textbooks. Differences in content topic distribution were also observed across different textbooks, subject areas, and units. In certified textbooks, the explanatory format was most commonly used for presenting reading materials. The rate of presenting student activities such as specific activities or follow-up questions was found to be higher in the certified textbooks than the government-issued textbooks.

남자 대학생의 응급 피임약에 대한 지식 및 태도, 사용의도와 안전한 성행위 의도간의 상관관계

김승지,김현지,문서영,박지수,신예라,이원정,이하진,정새림,정유진,최현지,강숙정,길민지 이화여자대학교 간호과학대학 2017 이화간호학회지 Vol.- No.51

Purpose: Investigate the correlation between male college students' knowledge, attitude toward emergency contraceptive pills and their intention of safer sexual behavior. Method: Data was collected using questionnaires between October 4th to October 9th, 2016. Participants of this study were 166 male college students who are currently attending universities located in seoul and aged 19 to 29 years old. The descriptive and correlation statistics were performed using IBM SPSS Statistics 21. Result: The study has established that only 31.9% of the participants have received the emergency contraceptive pill education. The sexual experience, usage of E (Emergency Contraceptives), use of contraception in the future, intentions of using EC, EC education experience and monthly allowance also demonstrated significant difference in knowledge. Furthermore, relationship status, EC recommendation and EC education experience were found significantly related to the attitude toward EC. Conclusion: These results suggest that it is necessary to improve and reinforce the quantity and the quality of the EC education.

교통상황 및 인적요소를 고려한 도로전광표지 판독소요시간 측정

현문국,김승지,김병종,김원규 한국ITS학회 2012 한국ITS학회논문지 Vol.11 No.1

ITS 기술의 발달에 따라 평균적으로 고속도로 8km마다 도로전광표지가 설치되어 운영중이다. 하지만 도로의 교통상황을 적절히 반영하지 못한 채, 기 설정된 정보를 일방적으로 표출하고 있는 실정이다. 이로 인해 한정된 시간 동안 운전자는 표출되는 정보를 모두 인지하지 못하거나, 자신이 원하는 정보가 표출되기 전에 도로전광표지를 지나감으로써 도로전광표지의 기능을 떨어뜨리고 신뢰성 저하를 가져오고 있다. 본 연구에서는 교통류속도 등의 교통상황 및 인적요소를 고려한 도로전광표지 판독소요시간 및 거리 측정을 위한 실험을 수행하였다. 실제 주행환경을 모사할 수 있는 Winroad 패키지를 이용하여 실험환경을 구현하였으며 113명의 피실험자군을 대상으로 실험을 수행하였다. 실험결과에 대하여 회귀분석을 수행하였으며, 도로전광표지 메시지 판독소요시간 측정 모형을 도출하였다. 본 연구에서 도출 도로전광표지 판독소요시간 측정 모형을 이용하여 교통류 속도와 표출 메시지 정보량 등 교통상황과 인적요소를 반영한 메시지셋을 개발하는데 활용 될 수 있도록 한다. According to the development of Intelligent Transportation System technology, VMS(Variable Message Signs) are operating on highway. But, VMS display information which don't reflect traffic condition and driver's human factor. So driver can't read VMS message during limited time, it makes to reduce VMS's reliability. This paper presents a model for VMS message reading time and distance considering traffic condition and human factor. We built driving simulator by Winroad package which is able to copy real driving condition. Subjects were comprised of 20 people who reflect domestic driver's condition such as sex. We did regression analysis with experiment results and draw the model. The model could be possible to develop message- set considering traffic condition and human factor.

인프라 독립형 가변안내표지판 기능 정의 및 시스템 구성

전병찬,김승지,현문국,박준석,김병종,김원규 한국정보통신설비학회 2011 한국정보통신설비학회 학술대회 Vol.2011 No.1

차량 주행 시뮬레이터를 이용한 가변안내표지판 판독정확도 및 판독소요시간 측정 실험

현문국,김승지,김병종,김원규 한국정보통신설비학회 2011 한국정보통신설비학회 학술대회 Vol.2011 No.1

Usefulness of a saline chaser to reduce contrast material dose in abdominal CT of normal dogs

김혜진,홍성균,김승지,오다영,이시헌,전상경,윤정희,최민철 대한수의학회 2019 Journal of Veterinary Science Vol.20 No.4

Use of a saline chaser has been reported to allow reduction of contrast dose and artifacts during computed tomography (CT) examination in humans. This study assesses the extent of contrast dose by using a saline chaser in abdominal CT scans of normal dogs. Five beagles underwent abdominal CT scans. Three protocols were applied: 600 mg I/kg iohexol without saline chaser (protocol 1), 30% lower dose of iohexol (420 mg I/kg) followed by a 10 mL saline chaser (protocol 2), and 40% lower dose of iohexol (360 mg I/kg) followed by a 10 mL saline chaser (protocol 3). Attenuation values were obtained from aorta, portal vein, and liver parenchyma. The maximum enhancement values (MEVs) in protocol 2 were significantly higher than those in protocols 1 and 3 in the aorta; no difference was seen in the portal vein in all protocols. The liver parenchymal MEVs in protocols 1 and 2 were significantly higher than those obtained in protocol 3. In this study, the use of a saline chaser and a reduced dose of contrast material did not affect vessel enhancement. In conclusion, use of a saline chaser for abdominal CT of dogs is recommended because it allows a 30% reduction of contrast dose without decreasing vascular and hepatic parenchymal enhancement.