• 제목/요약/키워드: Trunk strategy

검색결과 34건 처리시간 0.024초

지능형 교통시스템에서 도시 고속도로와 램프의 교통량을 고려한 밀도 기반 램프 미터링 방법 (Density-Based Ramp Metering Method Considering Traffic of Freeway and Ramp on ITS)

  • 전수빈;정인범
    • 정보과학회 컴퓨팅의 실제 논문지
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    • 제21권3호
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    • pp.223-238
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    • 2015
  • 램프 미터링은 램프로부터 도로에 진입하는 차량을 통제 함으로써 교통 상황을 향상 시키는 직접적이고 효과적인 방법이다. 본 논문에서는 밀도 데이터를 이용한 새로운 램프 미터링 방법을 제안한다. 교통량을 사용하는 기존 방법은 낮은 신뢰도의 데이터에 의해 동작 되며 다양한 문제를 가질 수 있다. 또한 주 도로에 정체가 발생 했을 때 램프의 추가적인 교통 정체 및 램프의 용량초과 문제가 발생 할 수 있다. 기존 방법에 대한 문제를 해결 하기 위해 제안하는 방법은 밀도와 가속도 데이터를 이용한 새로운 램프 미터링 방법을 제안한다. 실험을 위해 미네소타 주 트윈시티의 TH-62의 고속 국도를 선택하였고 효율성을 테스트 하기 위해 미네소타 주에서 동작하고 있는 Stratified Zone Metering(SZM)과 비교 실험을 진행한다. 실험 환경은 PTV사의 VISSIM 시뮬레이터를 이용하였고 이를 제어할 수 있는 도로 제어 및 평가 시스템(TICAS)을 개발 하여 시뮬레이션을 진행 하였다. 실험 조건은 정체가 가장 심한 2011년 10월 25일 오후 2시부터 오후 7시까지로 설정한다. 실험 결과 도로의 총 여행시간과 정체구간은 SZM보다 20% 감소 하였다. 또한 각 램프의 대기 열 길이를 측정한 결과 SZM에서 발생하던 램프의 길이를 초과하는 문제점이 해결된 것을 확인할 수 있었다.

자세변화에 대한 뇌성마비아동(경직성 양마비)의 손 기능 차이 비교와 제변수와의 상관관계의 연구 (The Effect of Positioning on the Hand Function and Correlation of Variable in Children with Cerebral Palsy(Spastic Diplegia))

  • 정민예;구애련;권혁철
    • 한국전문물리치료학회지
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    • 제3권3호
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    • pp.44-58
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    • 1996
  • The purpose of this study was to compare and evaluate various hand functions in the most common position (chair sitting, standing, floor sitting) used by cerebral palsied children with spastic diplegia. The results, analysed statistically, could be useful in suggesting treatment strategy for the improvement of hand function in such patient. For this study, 27 children mild or moderate spastic diplegia were chosen. They were patients of the Rehabilitation Hospital, Yonsei University Medical Center. Both dominant and nondominant hands were tested by the Box and Block Test. Bilateral hand function was tested by bead striding and card sorting activities. Collected data was analysed using univariate correlation analysis and MANOVA. Results were as follows: 1) In chair sitting there was a significant positive correlation between dominant hand scores in the Bloc and Box Test and chronological age, gestation period, and time of treatment initiation. In bilateral hand function, card sorting scores correlated positively with time of treatment initiation. 2) In standing, there was a significantly positive correlation between dominant hand scores in the Block and Box Test and time of treatment initiation. 3) In floor sitting, there was a significantly positive correlation between the dominance hand scores in the Block and Box Test and the tine of treatment initiation. Bead stringing, a bilateral hand activity, correlated positively with gestation period and birth weight but negatively with the postnatal incubation period. 4) That score of children who walked showed no significant difference in any of the three postures. 5) Highest test scores in children who could nat walk were in the Box and Block Test for nondominant hand in bead stringing for bilateral hand function. There scores occurred with the children in thee chair sitting posture. The results showed that, in order to improve hand function in children with spastic diplegia, it is necessary to maintain a well supported upright trunk posture with variations allowed for relevance to the chosen position of thee improvements hand activity being performed.

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여성의 안면 다한증에 대한 제2흉부 교감신경 차단술 후 장기결과 (Long-term Results of Thoracoscopic T2 Sympathicotomy for Craniofacial Hyperhidrosis in Woman)

  • 조덕곤;조민섭;박찬범;왕영필;이선희;조규도
    • Journal of Chest Surgery
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    • 제37권7호
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    • pp.591-596
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    • 2004
  • 최근 수부 다한증에 비해 안면 다한증에 대한 교감신경 차단술은 점차 기피되고 있는 실정이다. 최근 저자들은 남성과 여성에서의 술 후 만족도의 차이로 인해 남성에서의 수술은 배제하고 여성에서만의 선택적인 수술을 권장할 것을 보고한 바 있다. 이에 여성의 안면 다한증에 대해 제2번 흉부교감신경 차단술 후 장기결과를 분석하여 여성에서의 수술 적정성을 재검토하고 향후 새로운 치료지침을 정립하기 위해 연구를 시행하였다. 대상 및 방법: 1998년 5월부터 2001년 7월까지 순수한 안면 다한증으로 제2흉부 교감신경 차단술을 시행 받고 수술 후 최소 2년이 경과한 27명의 여성 환자 중 전화 설문조사가 가능하였던 20명의 환자를 대상으로 하였다. 수술 방법은 2 mm 흉강경 기구를 이용하여 제2번 흉부 교감신경절 상부 신경줄기만을 절단하였다. 7명에서 미각성 발한이 동반되었다. 나이는 최소 25세부터 62세까지 평균 46.4세였다. 걸과: 수술 직후 모든 예에서 증상은 소실되었으며, 수술 1주 후에 환자의 만족도는 15예에서 “아주 만족한다”고 하였으며, 5예에서는 “대체로 만족한다” 고 하였다. 그러나 수술 후 25개월부터 63개월까지 평균 46.3개월의 장기추적 관찰에서 9예(45 %)는 “대체로 만족한다”, 8예(40%)는 “그저 그렇다”, 그리고 3예(15%)는 “불만(수술후회)”이라고 하였다. 미각성 발한으로 인해 16명(80%)이 불편하다고 호소하였고, 모든 예에서 보상성 발한이 발생하였는데 10예(50%)에서 “심하다”, 6예(30%)에서 “심하나 참을 만하다”,나머지 4예(20%)에서는 “보통이다” 라고 하였다. 보상성 발한의 위치는 가슴, 등, 액와부 및 하지부위로 전체에 걸쳐 위치하였다. 걸론: 여성에서 안면다한증에 대한 제2흉부 교감신경 차단술은 아직도 고려될 만한 수술이고 수술 만족도에 미치는 주요인은 미각성 발한과 보상성 발한에 대한 개인적인 적응정도의 차이이다. 그러므로 수술 후 만족도를 높이기 위해 이를 예측할 수 있는 수술 전 위험인자를 찾는 노력이 요구되고, 이를 통해 보다 세밀한 수술 대상 환자의 선택이 필요하며 새로운 치료 방법의 개발이 요구된다.

우리나라 대표적(代表的) 표본인구(標本人口)의 연간(年間) 손상(損傷) 및 중독발생율(中毒發生率)과 역학적(疫學的) 특성(特性) (National Survey of Injury and Poisoning on a Representative Sample Population of Koreans)

  • 김정순;김성수;장성칠
    • Journal of Preventive Medicine and Public Health
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    • 제27권3호
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    • pp.447-463
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    • 1994
  • Despite the public health importance of injury and poisoning in terms of its high mortality and incidence, epidemiologic information to be utilized are scarce in Korea. This study was carried out in 1990 on a representative sample population (about 55,000 persons) along with the 6th National Tuberculosis Prevalence Survey in order to estimate the magnitude of injury and poisoning occurrence and to identify its epidemiologic characteristics which can be aided for establishing preventive strategy. Pre-tested and structured Questionnaire was used by trained interviewer to collect data including general information of the person, various information on the injury and poisoning during the past one year such as time and place of its occurrence, its nature and external causes, type of medical institute attended, duration of treatment and outcome of the accident occured. In analysis of the data collected incidence rates per 1000 persons by sex, age group and its nature as well as external causes, and relative frequencies were calculated. The result obtained are as followings; 1. The incidence rate per 1000 was 30 for both sexes, 39 for male and 22 for female, male being 1.8 times more frequent than female. Age adjusted incidences were not much different from the crude rates. Age group specific rate curve showed bimodal shape in both sexes, small peaks in preschool children and higher peaks in older ages. The incidence rate per 1000 people by area was highest in Jeon-bug province (57/1000) and the lowest in Daegu city(11/1000). 2. The place where the injuries occured were road in 46%, within the boundary of house in 25%, and working place in 12% The injuries and poisoning had occured more frequently during the months from March to August of the year than other months. 3. The relatively frequent injuries by its nature were contusion with intact skin surface (19%), fracture of upper limb (13%), open wound of head, neck and trunk (12%) and fracture of lower limb (11%) among males; contusion with intact skin surface (28%), sprains and strains of joints and adjacent muscle (14%), fracture of upper limb (10%) and fracture of lower limb (9%) among females. Higher incidence rate among males than females were fracture of skull (4.5 times), open wound and fractures of limbs ($2{\sim}3$ times). Age specific rate of injuries and poisoning by its nature showed increasing pattern by age in fractures of upper and lower limbs and sprains & strains of joints whereas the age group of 30's showed highest incidence in open wounds of upper limb. Fractures of radius and ulna in upper limb, fractures of tibia & fibula and ankle in lower limb were most frequent among fractures of upper and lower limbs. The frequent injuries among sprains and strains of joints and adjacent muscles were that of ankle, foot and back, and among open wound were that of head and fingers. 4. Relative frequency of injuries and poisoning by external causes showed following order : other accidents (25%), accidental falls (23%), motor vehicle accident (22%) and other road vehicle accident (14%) among males and accidental falls (37%), motor vehicle accident (24%) and other accident (18%) among females. The external causes revealing higher incidences among males than females, were other road vehicle accident (4.8 times), vehicle accident not elsewhere classifiable (4.4 times), accidental poisoning (4.4 times), accidents due to natural and environmental factors (2.8 times), and sucide & self-inflicted injuries (2.8 times). Age specific incidence by external causes for frequent injuries showed that incidence of other accident steadily increased from 10's till age 50's; motor vehicle traffic accident increased from age 20's and dropped after age 60's; on the other hand accidental fall increased strikingly by age. The most frequent external causes among motor vehicle traffic accidents was motor vehicle traffic accident involving collision with pedstrain (69%), pedal cycle accident (30%) and other road vehicle accident (71%) among other road vehicle accidents; falls on same level from slipping, tripping or standing (44%) and other falls from one level to another among accidental falls; accidents caused by machinary (32%) for male and striking against or struck accidentally by objects or person for female among other accidents. 5. Seventy nine percent of the injuries and poisonings were treated in general hospital or hospital/clinic. The duration of treatment ranged from a few days to 123 weeks; the majority(52%) took under 2 weeks, 36% for $3{\sim}8$ weeks and 4% over 21 weeks. 6. The accident resulted in full recovery of normal healthy state in 62%, residual functional defects in 21% and on process of treatment in 16%.

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