• 제목/요약/키워드: integrative approach

검색결과 234건 처리시간 0.028초

신호교차로 대기행렬 예측을 위한 인공신경망의 학습자료 구성분석 (Training Sample of Artificial Neural Networks for Predicting Signalized Intersection Queue Length)

  • 한종학;김성호;최병국
    • 대한교통학회지
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    • 제18권4호
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    • pp.75-85
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    • 2000
  • 본 연구에서는 도시부도로 신호교차로의 대기행렬을 단기(one cycle ahead)예측함에 있어 단일검지체계에 기반을 둔 한 지점의 시계열적 패턴을 갖는 검지자료(detection data)를 학습자료로 구성할 경우와 통합차량검지체계하에 기반을 둔 시공간적 상관관계를 갖는 검지자료를 학습자료로 이용할 경우를 가정하여 이에 대한 인공신경망의 학습능력과 예측능력을 비교하였다. 연구결과는 도시부도로 신호교차로상에서 차량군(platoon)의 이동에 따라 발생되는 시공간적인 상관관계를 갖는 교통류변수 $\ulcorner$상류유입교통량(k-1)->통행시간(k-1)->대기행렬(k)->유출교통량(k)->대기행렬(k+1)$\lrcorner$를 인공신경망의 학습자료로 구성할 경우, 교통류 패턴의 학습능력이 뛰어난 것으로 밝혀졌다.

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Reproductive Function of the Body and Tail Undulations of Hynobius leechii (Amphibia: Hynobiidae): A Quantitative Approach

  • Kim, Ja-Kyeong;Lee, Jung-Hyun;Ra, Nam-Yong;Lee, Heon-Ju;Eom, Jun-Ho;Park, Dae-Sik
    • Animal cells and systems
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    • 제13권1호
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    • pp.71-78
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    • 2009
  • To clarify the reproductive function of vibration signals in Hynobius, which has externally fertilized eggs, we quantitatively analyzed the body and tail undulations of male Korean salamanders (Hynobius leechii) in sixteen mating events. One large and one small male, and one female were used in each mating event. We analyzed behaviors recorded over a total of 3 hrs for each mating event; 2 hrs before and 1 hr after female's oviposition. Males touched females using their snouts or body trunk throughout the entire mating periods, but females touched males increasingly more after approximately 1 hr before oviposition. Males conducted body undulations more than 50 times per 10 minutes at a mean frequency of 0.64 Hz. Large males conducted more body undulations than small males, particularly on the tree twig where females attached their egg sacs. Males responded to other males' body undulation throughout the mating period by orienting their head towards, approaching, and touching the undulating male. Females only responded for about 10-20 min before ovipositing, and most responses were directed to the large male's body undulation. Males conducted tail undulations 3.0 times per 10 min at a mean frequency of 1.7 Hz and most tail undulations occurred after one male bit the other male. These results suggest that body undulations function in both male-female and male-male interactions, while tail undulations mainly functions in male-male competition. Also, male H. leechii appear to actively attract females, while females respond to the males only at times close to oviposition.

결혼이민자 가족을 위한 임파워먼트 기반의 사회복지실천 연구 (Social Work with Marriage Based Immigrant Families: an Application of Empowerment Approach)

  • 윤혜미
    • 한국사회복지학
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    • 제61권4호
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    • pp.85-108
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    • 2009
  • 본 연구는 결혼이민자 가족이 직면하고 있는 다양한 도전에 대해 사회복지실천현장의 효과적인 접근방법으로 임파워먼트 접근의 틀을 제시하고자 하였다. 구체적으로 첫째, 결혼이민여성의 프로필과 지원서비스현황을 파악하고, 둘째, 적응관련 쟁점을 정리하였다. 셋째, 적응쟁점을 개인과 가족 관계, 지역사회 관련 및 사회문화 관련으로 구분하고, 임파워먼트 기반 사회복지실천 접근의 내용을 각각의 쟁점별로 거시 중도 미시적 수준에서 논의하였다. 결혼이민자 가족을 위한 차별화된 접근은 다문화역량과 밀접한 관계에 있다고 보고, 사회복지사 자신과 사회복지기관, 지역사회의 문화적 편견에 대한인식과 다문화 지식 및 기술의 개발 필요성을 지적하였다. 끝으로 다문화역량 확보에 대한 사회복지학계와 실천현장의 대응에 대해 논의하였다.

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노년기 건강에 있어 미병(未病) 관리의 의의: 한의학과 심리학의 연관성을 중심으로 (The Significance of Managing "Mibyeng" in Geriatric Health by Focusing on the Connection between Korean Medicine and Psychology: A Review)

  • 배수현;박미소;이시우;백영화;류호룡;김기연
    • 동의신경정신과학회지
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    • 제31권2호
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    • pp.109-119
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    • 2020
  • Objectives: The aim of this study is to review the significance of managing "Mibyeong" in geriatric health in Korean medicine and psychology. Methods: We performed a literature search using OASIS, Koreantk, RISS, DBpia, and PubMed databases. We retrieved research articles using the keywords related to mibyeong (未病), sub-health (亞健康), Korean-medicine, psychology and geriatric health. Results: Both Korean medicine and psychology emphasize biological, psychological, and social balance and well-being. In addition, both value individual personality and constitution. Mibyeong is a Korean medical concept suggesting sub-health. Elderly individuals who are in a state of Mibyeong are frail and vulnerable to disorders and illness. Since depression, chronic diseases, low physical and mental activity have fatal outcomes in frail and elderly subjects, positive psychological support and active management of Mibyeong are very important. Conclusions: Geriatric health conditions are associated with chronic disease and multiple risk factors, including physiological, psychological, social, and economic conditions. A preventive and integrative approach is essential for geriatric health as prevention is better than cure for most geriatric diseases and illnesses.

새천년의 여성건강을 위한 조산사의 역할 확대 방향 (A Direction for Nurse-Midwife's Expanded Roles for Women's Health in the New Millenium)

  • 유은광;김영희;이창은;김용분;이미영
    • 여성건강간호학회지
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    • 제5권1호
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    • pp.65-79
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    • 1999
  • The purpose of this study was to figure out a direction for midwifes' expanded roles for integrative woman's health care focused on health promotion & maintenance and primary prevention of women's health disorders including family health in the new millenium as a primary women's health practitioner. Data sources used for analysis were the book published from International Confederation of Midwives including role, code, situation and others from the international aspects : the empirical data from direct contact by participation in the ICM held in Manila, Philipine, May 22-26, 1999 : and documentation of Korean Midwives Association. Historical and current changing perspectives toward woman's health & nurse-midwifery and the reality women's health & nurse-midwifery and the reality of expand role that should be acquired toward the new millenium are discussed. In conclusion, Nurse-midwives are the very primary women's health care providers who can provide not only the exact needs of women who have health related problems, which are developed in the unique socio-cultural context women are belonged to, but also reproductive affairs including labor and delivery as it was midwive's traditional role, not just as practitioner, educator, counselor but conscious raiser for women's right. Futhermore, for this, thorough preparation through various kind of active and contemplated approach such as remodeling roles and education and continuing education system, training for high skilled & technical action, making laws and policy, and others is absolutely required.

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브랜드 권위성과 윤리성이 구매·추천의도에 미치는 영향에 있어서 브랜드 진정성의 매개효과 (Brand Authenticity Mediated the Effect of Brand Authority and Ethicality on Purchase and Word-of-mouth Intention)

  • 이종만
    • 한국콘텐츠학회논문지
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    • 제16권1호
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    • pp.611-619
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    • 2016
  • 지금까지 브랜드 진정성에 관한 선행연구들은 브랜드 진정성을 측정할 수 있는 척도를 개발하는데 집중하여 왔다. 그러나 이제는 통합적인 시각에서 제안된 척도의 활용에 대한 고려가 필요할 것이다. 이에 본 연구는 브랜드 권위성과 윤리성이 구매 추천의도에 미치는 영향에 있어서 브랜드 진정성의 매개적 변수효과 모형을 개발하고 검증하고자 한다. 본 연구를 위해 설문방법을 이용하였고, 분석을 위한 데이터는 직장인을 대상으로 수집한 총 136개의 데이터를 적용하였다. 그리고 자료의 분석은 구조방정식모형을 사용하였다. 분석결과, 첫째, 브랜드 권위성과 윤리성은 구매추천의도에 직접적인 영향을 미치기 보다는, 브랜드 진정성을 매개로하여 영향을 미치는 것이 더 효과적인 것으로 나타났다. 둘째, 브랜드 권위성과 윤리성은 브랜드 진정성에 영향을 미치는 주요 변수인 것으로 나타났다. 본 연구의 결과는 직장인의 구매 추천의도에 대한 정보를 탐색함과 동시에 브랜드 관리 정책 수립에 있어서 브랜드 진정성의 중요성을 제시하였다는데 의의가 있다.

수학교사의 전문성 신장을 위한 수업 반성에 대한 준거 제안 (A Study on the Establishment of the Criteria for Teaching Reflection for the Professional Enhancement of Mathematics Teachers)

  • 이금선;강옥기
    • 대한수학교육학회지:학교수학
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    • 제10권2호
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    • pp.199-222
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    • 2008
  • 본 연구는 수학교사의 전문성 관점에서 최근 활발히 대두되고 있는 수업 반성의 의미와 방법 등을 살펴보고, 수학과 수업 반성의 효율적 실현을 위한 분석의 준거를 고찰하고 제안해 보고자 시도되었다. 선행연구 분석 결과, 기존의 자기 평가적 체크 리스트의 결과와는 차별화 된 세부 항목들을 통합한 총체적이고 체계적인 반성적 분석 준거 개발이 요구되는 것으로 나타났다. 이에 선행연구의 고찰 결과를 토대로 수학과 수업 반성을 위한 분석 절차를 수업 전 중 후로 분류하고 이에 따르는 세부 영역에 적합한 반성적 질문들을 도출하여 수학과 수업 반성을 위한 준거를 제안하였다.

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2000년대 국내 항공기 사고·준사고 발생유형 사례연구 (A case study on the Occurrence Category of aircraft accidents and serious incidents in Korea in the 2000's)

  • 최영재;안재형;유경인;박정권
    • 한국항공운항학회지
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    • 제21권4호
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    • pp.119-125
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    • 2013
  • Since year 2001 to the present time, the aircraft accidents and serious incidents in our country have surpassed 150 occurrences. The Boeing has published the statistical summary of commercial jet airplane accidents annually for the past 10 years on the basis of the occurrence categories defined by the CICTT(CAST/ICAO Common Taxonomy Team), and the number of occurrences is in order of loss of control(LOC-I), controlled flight into terrain(CFIT) and runway excursion (RE). Like the NTSB and the EASA, when fatal and non-fatal accidents are aggregated, though fatality rate is low, abnormal runway contact(ARC), system/component failure(SCF-PP/NP), ground handling(RAMP) rank high in the CICTT occurrence categories. With the less occurrence frequency, it is difficult to statistically analyze the aircraft accidents in our country, thus customarily the accidents and the serious incidents on aggregate are consolidated, and the statistical analysis is performed. This study categorizes the accidents and serious incidents to the domestic transportation aircraft in the past 10 years according to the CICTT occurrence categories, that is compared with foreign practices, and the implications have been discussed. From years 2001 through 2010, the accidents to the domestic transportation aircraft occurred in order of system failure(SCF-NP), ARC and power plant failure(SCF-PP), and when the accidents and the serious incidents are consolidated and analyzed, it is verified that a distribution appears similar to the European accident occurrence categories defined from 300 accident occurrence data.

Communication of Young Black-Tailed Gulls, Larus crassirostris, in response to Parents Behavior

  • Chung, Hoon;Cheong, Seok-Wan;Park, Shi-Ryong
    • Animal cells and systems
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    • 제8권4호
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    • pp.295-300
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    • 2004
  • In the breeding colony of black-tailed gull, as nests of conspecific neighbors are very closely located, chicks are permanently exposed by sound and visual stimuli produced by adult conspecifics approaching their nests. The chicks, therefore, may need to learn ways to appropriately respond to their parents approach. In this study we experimentally manipulated sensory stimulation that is potentially provided by the parents to the offspring. Chicks incubated in the laboratory were exposed to a mew call of the conspecific adult. Then they were tested in three situations differing in sensory stimulation: 1) visual stimulation only, 2) auditory stimulation only, and 3) Simultaneous visual and auditory stimulations. We observed occurrence of different response of the chicks, which were categorized into three behaviors (begging call response, chirirah call and pecking behavior). We also investigated intensity of the chicks call in response to the different stimulations and the degree of response with age. The chicks exposed to only auditory stimulation made significantly more chirirah calls. The intensities (dB) of the mew call and chicks chirirah call were directly correlated. On the other hand, when chicks just saw the stuffed adult gull, they responded significantly more with a begging call and pecking behavior. In the situation of costimulation, the chicks responded with a begging call and pecking, but less frequently than visual stimulation only. The results suggest that young black-tailed gulls use call repertories to properly respond to parents behavior. Such results suggest an evolutionary process for uncreasing their survival rate in a group breeding site.

Effects of Long-Term Removal of Sheep Grazing on the Seedbanks of High-Level Grasslands and Blanket Bogs

  • Marrs, Rob H.;McAllister, H.A.;Cho, K.;Rose, Rob J.;O'Reilly, J.;Furnes, M.;Lee, Hyohyemi
    • Proceedings of the National Institute of Ecology of the Republic of Korea
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    • 제1권1호
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    • pp.22-30
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    • 2020
  • Many areas of vegetation in the British uplands have reduced species diversity as a result of sheep overgrazing. It has been suggested that abandonment or re-wilding strategies might be used to reverse this. A likely first step would be the removal or reduction of grazing livestock from upland areas, with a presumption that this would lead to a recovery in species richness. However, we do not know if this would work, or the timescales involved. One of the important areas where more knowledge is needed is information on the size and composition of soil seedbanks as regeneration from zseed is a likely pathway of recovery. Here, we compared seedbanks in both grazed and ungrazed plots in five experiments at Moor House NNR in the northern Pennines; these sheep grazing exclusion experiments were started 52 and 63/64 years ago. Soil samples (n=10) were collected from both grazed and ungrazed plots in each experiment, and seed emergence counted in glasshouse trials. We detected only seeds of common species and very few dicotyledonous species. This suggests that the soil seedbank is unlikely to be a reliable source of the less common species for ecological restoration in these upland communities, suggesting an extinction debt. Therefore, seed addition and the creation of suitable safe-sites for germination may be needed in conjunction with grazing controls to allow the establishment of plants that will increase the species richness of the vegetation. However, this interventionist restoration approach remains to be tested.