• 한국산학기술학회논문지
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• 제22권6호
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• pp.100-107
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• 2021

본 연구는 간호대학생의 회복 탄력성과 성격유형이 전공만족도에 미치는 영향을 알아보기 위한 서술적 조사연구이다. 본 연구대상은 D광역시에 소재하고 있는 4년제 2개 대학에 재학 중인 간호학과 학생들로 하였고, 자료 수집은 2020년 9월 8일부터 10월 6일까지 실시되었다. 자료 분석은 SPSS/WIN 26.0 program을 이용하였으며, 빈도와 백분율, 평균과 표준편차, Pearson;s correlation, Independent sample t-test, One-way ANOVA, Multiple regression을 이용하였다. 본 연구 결과 간호대학생의 회복 탄력성은 평균 3.50점(5점 만점), 성격 유형은 평균 2.28점(4점 만점), 전공만족도는 평균 3.12점(5점 만점)으로 나타났으며, 총 258명 중 A형 성격유형은 122명, B형 성격유형은 136명으로 나타났다. 간호대학생의 회복 탄력성과 전공만족도는 양의 상관관계가 있는 것으로 나타났으며, 이는 회복 탄력성이 높을수록 전공 만족도가 높아짐을 알 수 있었다. 간호대학생의 전공만족도는 A형 성격유형에서 대학생활 만족도, 대인 관계에 유의한 영향요인으로 나타났으며 46.2%의 설명력을 보였다. B형 성격유형에서는 학년과 대인관계에서 유의한 영향 요인으로 나타났으며 42.5%의 설명력을 보였다. 이상의 연구 결과를 보면 전공에 대한 만족도를 고취시키기 위해 대학 생활에서 대인관계를 개선시키고 회복 탄력성을 높일 수 있는 대학지원 프로그램 개발이 요구된다고 생각된다.

• 지역사회간호학회지
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• 제12권2호
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• pp.428-436
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• 2001

Purpose: To compare the differences of health-promoting behavior. life satisfaction and self-esteem between the young old and the old old. Method: The subjects were a volunteer sample of 200 elderly in K city. The instruments for this study were Health Promoting Lifestyle Profile (47 items). Life Satisfaction Scale(20 items) and Self-Esteem Scale(10 items). Frequency, percentage, t-test and Pearson's correlation coefficient with SAS program were used to analyze the data. Result: 1) There was a statistical significance(t=2.479. p<05) in health-promoting behavior between the young old and the old old which showed, on an average. 3.306 points in the young old and 2.872 points in the old old. 2) There was a statistical significance ( t = 1. 530. p<05) in self-esteem between the young old and the old old which showed. on an average. 3.091 points in the young old and 2.981 points in the old old. Conclusion: The old old is less the level of health-promoting behavior and self-esteem than the young old. It is necessary to develop comprehensive health-promoting program in order to improve a healthy lifestyle for the old old.

• 의학교육논단
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• 제22권2호
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• pp.115-121
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• 2020

The high degree of academic burnout experienced during academic life indicates that job skill levels during the first year following graduation are low, and the correlation with turnover intention is high. We investigated the effects of clinical practice stress and resilience on nursing students' burnout, and searched for factors that can prevent or control burnout. We recruited a convenience sample of 202 nursing students. Academic burnout, general characteristics, clinical practice stress, and resilience were assessed via self-reported questionnaires. The mean total score of academic burnout was 44.0 points; exhaustion was the highest at 18.5 points, inefficacy was 15.9 points, and cynicism was 9.6 points. High levels of clinical practice stress affected academic burnout (β=0.194, p=0.003), while high resilience was a factor that lowered the degree of academic burnout (β=-0.449, p<0.001). Based on our results, factors affecting students' experiences of academic burnout were clinical practice stress and resilience. We therefore propose the implementation of a new curriculum aimed at increasing satisfaction with the major, reducing clinical practice stress, and increasing resilience, including an efficient peer mentoring program for clinical practice.

• 한국인터넷방송통신학회논문지
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• 제9권4호
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• pp.53-57
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• 2009

본 논문에서는 환자관리의 전산화를 위한 안면 특징점 추출 알고리즘을 적용한 환자 인식 u-Healthcare 환경의 구현을 제안한다. 먼저 모바일 기기 등으로 환자의 사진용 촬영하고 이 사진 데이터를 AdaBoost 알고리즘의 입력데이터로 활용하여 특징점 패턴 추출한 후, 기존 데이터에이스에 저장된 환자의 샘플사진에서 추출한 특징점 패턴과 매칭 시킨다. 그 결과, 동일 환자라고 인식한 경우에는 환자정보 데이터베이스에서 질병, 담당의, 진료분야 등의 관련정보를 추출하여 기기 화면에 출력하는 환자인식 시스템의 구현 방법을 제시한다.

• 대한가정학회지
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• 제38권4호
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• pp.21-32
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• 2000

The purpose of this study was to investigate the relational between the self of differentiation of adult children's, the healthy family-of-origin, and the solidarity with aged mother. Questionnare survey method was used in this research. The sample was taken from 356 adult children in Chonnam and Sunchon city. The collected data were analyzed by using frequency, percentage, mean, standard deviation, t-test, correlation and stepwise regression analysis. The findings of this study are as follows ; 1) The total points of the self of differentiation of adults children's was 108.7, which was higher than the median 90. And the total points of the healthy family-origin was 107(median:84). And the total points of the attachment with aged mother was 30, which was higher than the median 24. And the total points of the conflict with aged mother was 22.8, which was lower than the median 27. 2) The variables significantly affecting the attachment with aged mother were the healthy family-of-origin, the self of differentiation, educational level and $R^2$of such variable are 30%. The variable significantly affecting the conflict with aged mother were the healthy family-of-origin, the self of differentiation and $R^2$ of such variables are 29%.

• Journal of Ecology and Environment
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• 제32권2호
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• pp.67-73
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• 2009

Soil $CO_2$ efflux can vary markedly in magnitude over both time and space, and understanding this variation is crucial for the correct measurement of $CO_2$ efflux in ecological studies. Although considerable research has quantified temporal variability in this flux, comparatively little effort has focused on its spatial variability. To account for spatial heterogeneity, we must be able to determine the number of sampling points required to adequately estimate soil $CO_2$ efflux in a target ecosystem. In this paper, we report the results of a study of the number of sampling points required for estimating soil $CO_2$ efflux using a closed-dynamic chamber in young and old Japanese cedar plantations in central Japan. The spatial heterogeneity in soil $CO_2$ efflux was significantly higher in the mature plantation than in the young stand. In the young plantation, 95% of samples of 9 randomly-chosen flux measurements from a population of 16 measurements made using 72-$cm^2$ chambers produced flux estimates within 20% of the full-population mean. In the mature plantation, 20 sampling points are required to achieve means within $\pm$ 20% of the full-population mean (15 measurements) for 95% of the sample dates. Variation in soil temperature and moisture could not explain the observed spatial variation in soil $CO_2$ efflux, even though both parameters are a good predictor of temporal variation in $CO_2$ efflux. Our results and those of previous studies suggest that, on average, approximately 46 sampling points are required to estimate the mean and variance of soil $CO_2$ flux in temperate and boreal forests to a precision of $\pm$ 10% at the 95% confidence level, and 12 points are required to achieve a precision of $\pm$ 20%.

• 방송공학회논문지
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• 제20권5호
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• pp.728-737
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• 2015

스티칭 기법은 여러 영상에서 추출한 특징점의 디스크립터를 생성하고, 특징점들간의 정합 과정을 통해 하나의 영상으로 만드는 것이다. 각각의 특징점은 128 차원의 정보를 가지고 있고, 특징점의 개수가 증가 할수록 데이터 처리 시간이 증가하게 된다. 본 논문에서는 비디오 영상을 입력 했을 때 고속 파노라마 생성을 위한 특징점 추출 및 정합 기법을 제안한다. 빠른 속도로 특징점 추출을 위해서 FAST(Features from Accelerated Segment Test) 기법을 사용한다. 특징점 정합과정은 기존의 방법과는 다른 새로운 방법을 제안한다. Mean shift를 통해 특징점이 포함된 영역을 추적하여 벡터(vector)를 구하고 이 벡터를 사용하여 추출한 특징점들을 정합하는데 사용한다. 마지막으로 이상점(outlier)을 제거하기 위해 RANSAC(RANdom Sample Consensus) 기법을 사용한다. 입력된 두 영상의 호모그래피(homography) 변환 행렬을 구하여 하나의 파노라마 영상을 생성한다. 실험을 통해 제안하는 기법이 기존의 기법보다 속도가 향상되는 것을 확인하였다.

• 치위생과학회지
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• 제21권1호
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• pp.19-27
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• 2021

Background: The purpose of this study was to investigate the effects of dental hygiene students' communication ability and conflict management types on adaptation to college life improve adaptation to college life and to suggest strategies to play a role as a professional dental hygienist in clinical practice. Methods: The subjects of this study were selected by random sample extraction of dental hygiene students from two colleges in Gyeonggi and one Chungcheong area. The survey was conducted online for dental hygiene students from July 20 to October 31, 2020. In order to comply with research ethics, this study was investigated with the consent of the subjects. The sample was analyzed for the final 351. Results: Dental hygiene students' communication ability was 3.74 points, conflict management types was 3.01 points, and adaptation to college life was 3.30 points. In the type of conflict management according to the general characteristics, the problem-solving method, the avoidance method, the compromise method, and the concession method showed statistically significant differences in major satisfaction. Among the types of conflict management, the highest positive correlation (r=0.613) was shown in the relationship between the problem-solving method and the compromise method. Factors influencing the adaptation to college life were concentration, forced method, self-disclosure, conversational coherence, and social relaxation. Conclusion: This study is significant in that it derives sub-areas of communication ability and conflict management types that influence adaptation to college life. In the future, there is a need to improve the quality of dental hygienists by continuously conducting research on the types of conflict management targeting dental hygienists, and responding more proactively and actively to conflict situations in the clinical field.

• Nutritional Sciences
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• 제2권2호
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• pp.107-112
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• 1999

Diet quality index DQI) offers a new way of comparing eating habits across populations and across countries. Nutrients and food consumption data from 100 elderly Korean women aged 65 and older were collected in Seoul or Kyunggi-do, Korea by the 24 hour recall method. Diet quality index (DQI) was computed for 1049 elderly women (65 and older) from the 1994-1996 Continuing Survey of Food Intakes by Individuals (CSFII) in the US according to US dietary guidelines, and applied to the diet of elderly Korean women for purposes of comparison. A modified 16-point DQI awarded 2 points each for moderate consumption of fat ($\leq$ 30% energy), saturated fat ($\leq$ 10%), cholesterol ($\leq$ 300 mg/day), sodium ($\leq$ 2400 mg/day), and protein ($\leq$ 100% RDA), adequate intakes of carbohydrate ($\qeq$50% energy) and calcium ($\qeq$ 100% RDA), and plenty of fruits and vegetables ($\qeq$ 5 servings). Criteria were based on US dietary guidelines. Partial scores were given if subjects were close to meeting these cutoff points. Diets with $\leq$ 300 mg cholesterol/day were reported by 97% or the Korean sample and 82% of the American sample, while 90% of the Koreans and 42% of the Americans met the goal of $\leq$ 30% of energy from fat, and 98% of the Koreans and 47% of American met the recommendation of $\leq$ 10% of energy from saturated fat. In contrast, only 8% of the Korean sample met the sodium recommendation of $\leq$ 2400 mg sodium per day, whereas 54% of the American subjects met this goal. The mean DQI scores were 10.1 for the elderly American women and 11.3 for the elderly Korean women. Overall, the elderly Korean diet was more consistent with the US dietary guidelines than the elderly American diet.

• International Journal of Fluid Machinery and Systems
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• 제10권3호
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• pp.240-253
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• 2017

Latin hypercube sampling is widely used design-of-experiment technique to select design points for simulation which are then used to construct a surrogate model. The exploration/exploitation properties of surrogate models depend on the size and distribution of design points in the chosen design space. The present study aimed at evaluating the performance characteristics of various surrogate models depending on the Latin hypercube sampling (LHS) procedure (sample size and spatial distribution) for a diverse set of optimization problems. The analysis was carried out for two types of problems: (1) thermal-fluid design problems (optimizations of convergent-divergent micromixer coupled with pulsatile flow and boot-shaped ribs), and (2) analytical test functions (six-hump camel back, Branin-Hoo, Hartman 3, and Hartman 6 functions). The three surrogate models, namely, response surface approximation, Kriging, and radial basis neural networks were tested. The important findings are illustrated using Box-plots. The surrogate models were analyzed in terms of global exploration (accuracy over the domain space) and local exploitation (ease of finding the global optimum point). Radial basis neural networks showed the best overall performance in global exploration characteristics as well as tendency to find the approximate optimal solution for the majority of tested problems. To build a surrogate model, it is recommended to use an initial sample size equal to 15 times the number of design variables. The study will provide useful guidelines on the effect of initial sample size and distribution on surrogate construction and subsequent optimization using LHS sampling plan.