기고 - 건축 그리고 도시의 경계에서

신재욱,Shin, Jae-woog 대한건축사협회 2014 建築士 Vol.2014 No.9

고유수용성신경근촉진법의 안정적 반전과 율동적 안정화 기법이 정상 성인 여성의 정적 균형에 미치는 영향

신재욱,이승민,김좌준,Shin, Jae-Wook,Lee, Seung-Min,Kim, Jwa-Jun 대한고유수용성신경근촉진법학회 2015 PNF and Movement Vol.13 No.3

Purpose: The current study seeks to examine the effects of stabilizing reversal(SR) and rhythmic stabilization(RS) in proprioceptive neuromuscular facilitation (PNF) techniques on static balance in normal female adults. Methods: Subjects included 20 healthy women in their 20s. They were randomly divided into SR and RS groups. To assess static balance before and after PNF intervention, the good balance system was used to measure the interior and exterior center of pressure (COP) movement distance, front and rear COP movement distance before and after the intervention, and velocity moment. Results: Interior and exterior COP movement distance, front and rear COP movement distance, and velocity moment decreased in the SR group, but no statistically significant differences were observed. In the RS group, the interior and exterior COP movement distance declined without any significant difference, while the front and rear COP movement distance and velocity moment significantly decreased. The interior and exterior COP movement distance, front and rear COP movement distance, and velocity moment declined more in the RS group than in the SR group. Conclusion: The findings of the current study indicate that the RS technique is more effective than the SR technique for improving the balance ability of healthy female adults. The results of this study can thus be utilized in the selection of effective interventions for improving the balance ability of healthy female adults.

관심영역을 이용한 DCT기반 워터마킹 기법

신재욱,정동석,Shin, Jae-Wook,Jeong, Dong-Seok 대한전자공학회 2000 電子工學會論文誌-SP (Signal processing) Vol.37 No.1

영상에서 관심영역을 추출하여 그 부분에만 워터마크 정보를 넣는다. 관심영역은 영상의 복잡도플 나타내는 방법중의 하나인 PIM(picture information measure)을 변형하여 사용한다 이렇게 추출된 영역에 대하여 DCT(discrete cosine transform)를 이용하여 주파수 공간으로 신호를 변형시킨 후, DCT 계수 값들의 성질인 방향성 정보와 주파수 특성을 이용해 워터마크 정보를 넣는다 기존에 제안된 방법의 단점은 영상의 특징을 사용하지 않고 영상의 전 부분에 걸쳐 워터마크 정보를 넣었기 때문에 영상의 왜곡이 심하다 세안된 방법은 영상의 특징을 이용하기 때문에 영상의 왜곡을 줄일 수 있었다 그리고 영상의 재표본화(resampling), 잡음과 같은 신호처리에 의한 변화에도 강인함을 보여준다 또한 블록에 기반 하여 워터마크를 집어넣기 때문에 JPEG이나 MPEG과 같은 영상의 압축에도 강인한 성질을 갖는 것을 확인 할 수 있었다 The proposed method inserts a watermark information not mto a whole Image region but only into regions of interest(ROIs) To extract the ROIs, we divide an original Image into sub-blocks and use modified Shi-Kuo Chang's PIM(picture information measure) as the criteria to select the ROIs Considering the directional information and frequency bands, we insert the watermark information into sub-blocks m the DCT domain. The proposed method can reduce the distortion in comparison With the other methods which utilize the whole Image as an nor The proposed method makes much less damaged Images m comparison to the other methods And those Images processed by the proposed algorithm are more robust to the changes caused by signal processing operations such as resampling, clipping. noise, and so on Also due to the block-based watermark insertion, the proposed method has the robustness to the Image compression processes such as JPEG and MPEG.

파킨슨 환자의 활동 개선을 위한 PNF 개념을 이용한 물리치료 사례보고

신재욱,김좌준,Shin, Jae-Wook,Kim, Jwa-Jun 대한고유수용성신경근촉진법학회 2016 PNF and Movement Vol.14 No.3

Purpose: Patients with Parkinson's disease suffer many restrictions in daily life. This case report investigated how intervention with proprioceptive neuromuscular facilitation (PNF)-based physical therapy can affect the activities of Parkinson's patients. Methods: The subject was a 67-year-old female patient diagnosed with Parkinson's disease 3 years ago. Since the last five months, overall activities have become difficult for her, and she finally visited a hospital to take outpatient physical therapy because of the gait difficulties she suffered. The patient's medical history, system review, body structure and function, and activities were evaluated. The patient had difficulties in activities such as lying down, sitting, standing, maintaining a standing position, and walking. The PNF-based intervention was used for treating the impairments and improving the activities. The intervention was performed for 30 min a day, three times a week, for eight weeks. The qualifier of the international classification of functioning, disability, and health was used to measure the result, and the measurement was conducted before and after the intervention for eight weeks. Results: According to the result, the scores for maintaining a standing position, moving around within the home, and going to the toilet improved to "no problem" from "moderate problem." The scores for shifting the body's center of gravity, walking short distances, and washing oneself improved from "moderate problem" to "mild problem." The scores for sitting and standing improved to "no problem" and "mild problem" from "complete problem." The scores for preparing meals and doing housework improved from "severe problems" to "mild problem" or "moderate problem." The scores for walking long distances, moving around outside the home and other buildings, and using transportation did not show significant changes. Conclusion: Intervention with PNF-based physical therapy improved the activity of patients with Parkinson's disease, thus proving its effectiveness. The case report suggested that a therapist can use PNF as a physical therapy intervention for patients with Parkinson's who suffered restrictions in daily activities.

Ad-hoc 네트워크에서의 Mobile IP 지원!

신재욱,나지현,이해룡,남상우,김상하,Shin, J.W.,Na, J.H.,Lee, H.R.,Nam, S.W.,Kim, S.H. 한국전자통신연구원 2003 전자통신동향분석 Vol.18 No.4

본 문서는 Ad-hoc 네트워크가 인터넷과 연동되는 환경에서 Mobile IP 기능을 지원하기 위한 기술에 대한 연구 동향을 분석한다. Mobile IP는 이동 노드와 Foreign Agent(FA) 간에 링크 레벨의 연결이 존재하는 네트워크 환경에서 동작하지만, Ad-hoc 네트워크의 경우 노드간에 멀티 홉 라우팅에 의한 통신 방법을 기본적으로 사용하고 있고, 노드의 자유로운 이동으로 인하여 이동 노드에서 FA로의 루트가 수시로 변경되는 특성을 가지고 있기 때문에 Ad-hoc 네트워크에서 Mobile IP를 지원하는 데에는 여러 가지 문제점이 따른다.

이동 Ad Hoc 네트워크에서의 Flooding 기술

신재욱,권혜언,김응배,Shin, J.W.,Kwon, H.Y.,Kim, E.B. 한국전자통신연구원 2003 전자통신동향분석 Vol.18 No.6

이동 Ad Hoc 네트워크에서 플러딩(flooding)은 제어 및 데이터 패킷을 브로드캐스팅하기 위해 주로 사용되고 있지만, 노드들간의 공유된 무선 채널 사용 및 무선 전송영역의 중첩으로 인하여 플러딩 수행 시에 발생되는 자원 경쟁, 패킷 충돌 및 패킷 중복 수신현상은 네트워크의 성능을 저하시키는 요인이 되고 있다. 본 고에서는 이동 Ad Hoc 네트워크에서 패킷 플러딩 수행 시에 발생되는 문제점을 기술하고 이를 해결하기 위해 제안된 다양한 플러딩 기법들을 소개한다.

뇌졸중 환자를 위한 물리치료 강도

신재욱,김재용,김좌준,Shin, Jae-Wook,Kim, Jae-Yong,Kim, Jwa-Jun 대한고유수용성신경근촉진법학회 2013 PNF and Movement Vol.11 No.1

Purpose : This paper reviews intensity of physical therapy for stroke. Methods : This is literature study with Pubmed, EBSCO, ProQuest, EMBASE and CINAHL. Results : There were 20 studies that reviewed effects of increased intensity of physical therapy after stroke involving time post-stroke, elements of physical therapy, duration of physical therapy, methods of physical therapy. Ten of the eleven studies, involving time post-stroke, demonstrated significant improvement. Seventeen studies involving upper extremity, lower extremity and mobility demonstrated significant improvement. Five studies involving increased duration of physical therapy demonstrated significant improvement. Studies involving methods of physical therapy showed that mix of different methods is more effective than single method. Conclusion : Increased intensity of physical therapy improve functional recovery.

두 개의 하이드로폰을 이용한 수중 음원 방향 추정 및 위치 추정 알고리즘

신재욱(JaeWook Shin),송주만(Ju-man Song),이석영(SeokYoung Lee),최현택(Hyun-Taek Choi),박부견(PooGyeon Park) 제어로봇시스템학회 2013 제어·로봇·시스템학회 논문지 Vol.19 No.8

For underwater vehicles, the use of sensors such as cameras and laser scanners is limited by the difference in environment compared to robots designed to work on dry land. In underwater environments, if use is made of sound signals, valuable information can be obtained. The most important application is the localization of underwater sound sources. The estimated location of a sound source can be used to control underwater robots or submarines. Thus, the purpose of this research is to estimate the source’s direction and location in a noisy underwater environment. The direction of the sound source is obtained using two hydrophones. Furthermore, if we assume that the robot or sound source is moving, the location of the sound source is estimated using more than two estimated directions. The feasibility of the developed algorithm is examined by experiments in a water tank and in the ocean.

전자담배 소비자의 자아성향과 소비자 특성 및 삶의 만족도간의 관계 연구

신재욱 ( Jae-wook Shin ),신민철 ( Min-cheol Shin ) 한국고객만족경영학회 2015 고객만족경영연구 Vol.17 No.3

본 연구는 전자담배 흡연자의 소비자성향(disposition) 변수 중 자아성향(독립적 자아성향, 상호적 자아성향), 독특성 추구경향, 과시소비성향 및 전자담배 흡연태도와 삶의 만족도간의 관계를 경험적으로 검증함을 목적으로 하였다. 연구 자료는 온라인 전문 조사기관을 통해 선정한 전자담배 흡연자 300명을 대상으로 수집하였고, 연구대상 변인들간의 관계는 구조방정식을 이용하여 실증분석 하였다. 연구결과를 정리하면 다음과 같다. 첫째, 독립적 자아성향은 독특성 추구경향에 긍정적인 영향을 주는 것으로 나타났다. 둘째, 상호적 자아성향은 과시소비성향에 긍정적인 영향을 주는 것으로 나타났다. 셋째, 독특성 추구경향은 과시소비성향에 긍정적인 영향을 주는 것으로 나타났다. 넷째, 독특성추구경향은 전자담배 흡연태도에 긍정적인 영향을 주는 것으로 나타났다. 다섯째, 과시소비성향은 전자담배 흡연태도에 긍정적인 영향을 주는 것으로 나타났다. 여섯째, 전자담배 흡연태도는 전자담배흡연자의 삶의 만족도에 긍정적인 영향을 주었다. 이상의 결과를 바탕으로 이론적 함의는 물론 정부기관의 금연정책과 전자담배 산업에 유용한 제안도 제시하였다. The purpose of this study was to empirically analyze the relationships among self-construals(independent, dependent), consumers` characteristics(need for distinctiveness, conspicuous consumption), attitude toward electronic cigarette and life satisfaction of electronic cigarette smokers. To this end, data were collected from 300 electronic cigarette smokers in eight metropolitan areas including Seoul/Gyeonggi-do region. Hypotheses were tested via structural equation modeling. The major findings of this study can be summarized as follows: First, independent self-construal had a positive effect on need for distinctiveness. Second, dependent self-construal had a positive effect on conspicuous consumption. Third, need for distinctiveness had a positive effect on conspicuous consumption. Fourth, need for distinctiveness had a positive effect on the attitude toward electronic cigarette. Fifth, conspicuous consumption had a positive effect on the attitude toward electronic cigarette. Sixth, the attitude toward electronic cigarette had a positive effect on life satisfaction. Based on these findings, theoretical, policy and practical implications were also discussed.

뇌졸중 발병 6개월 후 한방치료로 호전된 환자 증례보고 2례

신재욱 ( Jae-wook Shin ),백경민 ( Kyung-min Baek ),장우석 ( Woo-seok Jang ) 대구한의대학교 제한동의학술원 2016 東西醫學 Vol.41 No.4

Objectives : The purpose of this study is to report the clinical application of accupunture, herbal medicine treatment to a patient with stroke patients who suffered over 6months. Methods : Stroke of the patients in this case occurred over 6months ago. They all have spasticity in their left side of bodies and suffered hemiparesis over six months. We treated them with acupuncture and herbal medicine. We measured the state of this case by Manual Muscle Test(MMT) & Modified Bathel Index(MBI) & Modified Ashworth scale(MAS). Results : After treatment, MMT & MBI increased, while MAS decreased. Conclusions : According to this study, traditional Korean medicine is effective for improve the post-stroke patient`s ability.