• 제목/요약/키워드: Setting Depth

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매트릭스 해법을 이용한 포장체 각 층의 탄성계수 추정 역산알고리즘의 개발 (Development of Backcalculation Algorithm of Pavement System Using Matrix Solution Technique)

  • 김수일;이광호;박병현
    • 대한토목학회논문집
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    • 제14권3호
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    • pp.495-508
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    • 1994
  • 본 연구에서는 FWD 등의 비파괴 시험장비를 사용하여 포장체 각 층의 탄성계수를 추정할 때 필요로 하는 역산알고리즘을 매트릭스 해법을 이용하여 개발하고 수치모델을 통하여 알고리즘의 신뢰성을 검정하였다. 역산알고리즘에 적용한 포장구조해석 전산 프로그램으로는 다층탄성해석 전산 프로그램인 SINELA를 사용하였다. 역산 초기의 가정 탄성계수 및 가상암반층의 깊이 설정에는 포장 단면에 따른 data base를 구성한 후 이를 이용하는 방법을 택하였다. 본 연구개발의 역산 프로그램은 수치모델을 통한 분석에서 매우 정확한 역산결과를 주고 있음을 알 수 있었다. 또한, 기존의 역산 프로그램인 FPEDD1과 결과비교를 통해 본 프로그램이 역산 소요시간 및 정도 면에서 우수함을 알 수 있었다.

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비접촉식 동작인식 기반 사용자 인터페이스 기술 전망 (Prospect of Non-Touch User Interface Technique)

  • 김수균;성경
    • 한국항행학회논문지
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    • 제18권3호
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    • pp.242-247
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    • 2014
  • 접촉식 동작인식기반 사용자 인터페이스 기술(touch user interface)의 발전은 새로운 사용자 경험(UX)인 아이폰의 등장과 성공에 있다고 할 수 있다. 특히 애플 아이폰이 출시된 이후, 기존에 많이 쓰였던 전통적인 사용자 경험인 키보드와 마우스라는 큰 틀에서 벗어나게 된다. 현재는 4세대 기술인 비접촉식 동작인식 기반 사용자 인터페이스 기술이 접촉식 인터페이스 기술을 대체하는 방향으로 발전하고 있으며, 3세대에서 4세대로 이동한다고 할 수 있다. 본 논문에서는 비접촉식 인터액션 기술에 대한 선도기업을 중심으로 소개할 예정이며, 현재 선보이고 있는 최신 기술과 향후 선보일 기술에 대해 분석하고 비교해 본다.

국내 중생대 화강암의 대자율 특성과 화학조성 (Magnetic Susceptibility and Petrochemical Compositions of Mesozoic Granites in Korea)

  • 홍세선
    • 암석학회지
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    • 제13권1호
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    • pp.16-33
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    • 2004
  • 자기암석학적인 연구를 화강암에 적용시키기 위해서는 먼저 화강암의 자성 함량, 즉, 대자율에 대한 전반적인 이해와 암석의 화학적인 연구 기반을 바탕으로 화강암의 자기적 특성을 규명해야 한다. 이를 위해서는 자기 암석학적인 연구가 선행되어야 한다. 자성광물특성, 전암의 자기성질, 암석학적 연구, 지화학적 연구와 자기이상 특성을 연구하여 암석에 기록되어 있는 자기특성을 이해함으로서 좀 더 명확한 지질학적인 해석과 자기탐사에서의 지질학적 응용을 증대시킬 수 있다. 그러므로 이 연구에서는 국내의 화강암체들 중 포천, 지포리, 금산, 남원, 속리산, 용담, 태백산 지역, 마산, 진동화강암체 등 시대별, 지구조적으로 서로 다른 화강암들에 대한 대자율을 측정하고 이를 암석화학적 자료들과 비교하였으며 그 결과 암석의 진화경로, 지구조적인 차이, 화강암이 생성되는 암석화학적인 환경, 화강암의 정치심도에 따라 대자율이 반드시 정비례적이지는 않지만 서로간에 상관관계를 보이고 있음을 알 수 있다.

가임기 미혼여성의 월경규칙성과 정신건강 관련요인: 제5기 국민건강 영양조사를 중심으로 (Menstrual Regularity & Mental Health-related Factors on Unmarried Women of Childbearing Age: Based on the Fifth Korean National Health and Nutrition Examination Survey)

  • 최영실
    • 부모자녀건강학회지
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    • 제17권1호
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    • pp.1-7
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    • 2014
  • Purpose: The research was to identify menstrual regularity & mental health-related factors on unmarried women of childbearing age and provide a raw material in terms of setting up health policy. Methods: The KNHANE V-3 (The Fifth Korea National Health and Nutrition Examination Survey) was used and implemented through spss 18.0. Results: In general characteristics, there wasn't any remarkable difference between 20s and 30s. Looking further Mental health-related factors, stress was higher in 30s (p=.010). In 30s of irregularity mensutration women, it was accounted for 12.5% over than 3months experienced. General characteristics varied by menstrual regularity were age (p=.044), education level (p=.035) and in terms of mental health-related factors, they were stress (p=.044), sleeping time (p=.039). Multiple regression analysis was carried out to identify how influential these factors are on menstrual regularity. As a result, age, education level, sleeping time & stress was the most influence factors. Conclusion: The research had some limitations to specify and approach the feature of target in depth through KNHANE V-3. Thus, if the basic analysis regarding the menstrual problem in relation to local society was conducted on the basis of the result of research, it could help developing the promotion of health program and make the application easier.

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백혈병 생존 아동 건강관리를 위한 부모코칭 영역 개발 (Development of Parent Coaching Domains for the Health Management of Childhood Leukemia Survivors)

  • 임성현;오원옥
    • Child Health Nursing Research
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    • 제24권1호
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    • pp.68-77
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    • 2018
  • Purpose: The purpose of this study was to develop parent coaching domains for the health management of childhood leukemia survivors. Methods: In this study, we conducted a literature review and in-depth interviews with 6 parents of childhood leukemia survivors who were identified using convenience sampling. We identified areas of parent coaching through the 4 stages of the GROW model, which are: goal setting, realistic grasp, confirmation of realization, and search for alternatives. Results: Nine domains and 27 subcategories emerged from the study. The 9 parent coaching domains for the health management of childhood leukemia survivors were routine life management, education and information provision, emotional support for the surviving children, social support for the surviving children, follow-up management, family support, school life management, symptom management, and improvement of growth and development. Conclusion: This research developed 9 parent coaching domains for the health management of children surviving leukemia. The results of this study are expected to contribute to the efficient health management of childhood leukemia survivors by enabling practitioners to continuously identify new coaching domains as needed for their health management. Researchers should improve the health management of childhood leukemia survivors by developing nursing interventions for these new coaching areas.

레드머드를 이용한 바닥컬러콘크리트의 현장적용 (Application of the Color concrete with Red mud to the Floor Construction)

  • 김태청;김종;전충근;연규원;윤기원;신동안
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2008년도 추계 학술논문 발표대회
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    • pp.27-30
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    • 2008
  • This study investigated the application of red muds, which were industrial wastes fired at 800℃, with a coloring agents. The results were summarized as following. The slumpflow, air content and unit weight volume were satisfied with each target values. The setting time was shortened on the case that 3 % of the red coloring agent and fired red mud were simultaneously replaced about 1 hour compared with the previous study which was 6 % of the red coloring agent was individually used. For the length change ratio caused by drying shrinkage and depth of neutralization on hardened concrete, they were declined when 3 % of the red coloring agent and fired red mud were simultaneously replaced compared with the previous study. On the measurement of forming colors, the case that 3 % of the red coloring agent and fired red mud were simultaneously replaced was similar to the previous study.

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마케팅조사 현장에서 ethnography 원리의 적용방안에 관한 연구 (How to Apply Ethnography Principles to Marketing Research in the Field)

  • 유창조
    • 한국조사연구학회지:조사연구
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    • 제11권3호
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    • pp.115-137
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    • 2010
  • 본 연구는 현장에서 진행되는 마케팅조사에서 ethnography 원리가 적용될 필요성이 있음을 제안한다. Ethnography는 소비자의 체험이나 소비행태와 관련된 심층적인 자료를 수집할 수 있기 때문에 마케팅 관리자들의 의사결정에 유용한 정보를 제공할 수 있다. 따라서 본 연구는 조사업계에서 적용될 필요가 있는 ethnography 원리들을 소개하면서, 이의 활용가치를 요약하고, ethnography 원리들이 적용된 사례들을 소개한다. 마지막으로 본 연구는 마케팅 관리자가 조사를 진행할 때 ethnography 적용을 주저하게 되는 이유를 파악한 후 현장에서 ethnography가 보다 적극적으로 활용되기 위한 방안을 제시한다.

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A systematic review of the scalp donor site for split-thickness skin grafting

  • Oh, Suk Joon
    • Archives of Plastic Surgery
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    • 제47권6호
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    • pp.528-534
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    • 2020
  • Split-thickness skin grafting (STSG) is the gold standard for coverage of acute burns and reconstructive wounds. However, the choice of the donor site for STSG varies among surgeons, and the scalp represents a relatively under-utilized donor site. Understanding the validity of potential risks will assist in optimizing wound management. A comprehensive literature search was conducted of the PubMed database to identify studies evaluating scalp skin grafting in human subjects published between January 1, 1964 and December 31, 2019. Data were collected on early and late complications at the scalp donor site. In total, 27 articles comparing scalp donor site complications were included. The selected studies included analyses of acute burn patients only (21 of 27 articles), mean total body surface area (20 of 27), age distribution (22 of 27), sex (12 of 27), ethnicity (5 of 27), tumescent technique (21 of 27), depth setting of the dermatome (24 of 27), number of harvests (20 of 27), mean days of epithelization (18 of 27), and early and late complications (27 of 27). The total rate of early complications was 3.82% (117 of 3,062 patients). The total rate of late complications was 5.19% (159 of 3,062 patients). The literature on scalp skin grafting has not yet identified an ideal surgical technique for preventing donor site complications. Although scalp skin grafting provided superior outcomes with fewer donor site complications, there continues to be a lack of standardization. The use of scalp donor sites for STSG can prevent early and late complications if proper surgical planning, procedures, and postoperative care are performed.

Development of a Time-selective Self-triggering Water Sampler and Its Application to In-situ Calibration of a Turbidity Sensor

  • Jin, Jae-Youll;Hwang, Keun-Choon;Park, Jin-Soon;Yum, Ki-Dai;Oh, Jae-Kyung
    • Journal of the korean society of oceanography
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    • 제34권4호
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    • pp.200-206
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    • 1999
  • Seawater sampling is the primary task for the study of the marine environmental parameters that require shipboard or laboratory experiments for their analyses, and is also required for the calibration of some instruments for in situ measurement. A new automatic bottle (AUTTLE) is developed for seawater sampling at any desired time and water depth by self-triggering. Both any type of single or assembled mooring for 15 days and manual actuation by using a remote messenger as existing instantaneous single point water samplers are possible. Its sampling capacity and the resolution of time setting are 2 liters and 1 second, respectively. The result of a field experiment with an optical backscattering sensor (OBS) and a total of 14 AUTTLES for the in situ calibration of the OBS shows that the AUTTLE must improve our understanding on the behavior of the sand/mud mixtures in the environments with high waves and strong tides. The AUTTLE will serve as a valuable instrument in the various fields of oceanography, especially where synchronized seawater sampling at several sites is required and/or the information in storm period is important.

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암 환자의 희망 측정도구 개발 (Development of the Hope Scale for Korean Cancer Patients)

  • 태영숙;최윤숙;남금희;배주영
    • 성인간호학회지
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    • 제29권2호
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    • pp.211-223
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    • 2017
  • Purpose: This study was designed to develop and test the Hope Scale for Korean cancer patients. Methods: The process for the development of the Hope Test was a selection of initial items drawn from a literature review and in-depth interviews. The selected items were assessed for content validity by experts. The Hope Scale was comprised of five factors and 30 preliminary items. The preliminary Hope Scale for Korean Cancer Patients (HS_KCP) was administered to 259 cancer patients from one university hospital and one cancer hospital in Busan. Data were analyzed using item analysis, factor analysis, Pearson correlation coefficients, and Cronbach's ${\alpha}$. Results: Eighteen items were selected for the final scale. Five factors (inner sense of control, trust and expectation for recovery of disease, interconnection, spirituality, emotional despair) evolved from the factor analysis, which explained 63.3% of the total variance. The convergent & discriminent validity was r=.83 (p<.001), r=-73 (p<.001). The internal consistency, Cronbach's ${\alpha}$ was .88 and reliability of the subscales ranged from .54 to .85. Conclusion: The Hope Scale for Korean cancer patients demonstrated acceptable validity and reliability. It can be used to assess the hope of cancer patients and is feasible within a clinical setting.