• Title/Summary/Keyword: Adjustment Coefficient

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Estimation of WEPP's Parameters in Burnt Mountains (산불지역의 WEPP 매개변수 추정)

  • Park, Sang-Deog
    • Journal of Korea Water Resources Association
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    • v.41 no.6
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    • pp.565-574
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    • 2008
  • Fire-enhanced soil hydrophobicity often increases runoff and erosion in the mountain hillslope following severe wildfires. Estimation techniques for WEPP's parameters were studied in burnt mountain slopes. In burnt mountain slopes, the model over-predicted runoff in the small runoff and under-predicted runoff in the great runoff, and in the lower sediment runoff it had a tendency to over-predict soil loss. The effective hydraulic conductivity was most sensitive in the WEPP's runoff and its sediment runoff was mainly effected by the effective hydraulic conductivity, initial saturation, rill erodibility, and interrill erodibility. To improve the applicability of the WEPP, the adjustment coefficient of effective hydraulic conductivity was defined for runoff and the adjustment coefficient of rill erodibility and interrill erodibility was presented for sediment runoff. The adjustment coefficient of effective hydraulic conductivity in wildfire mountain slopes increased with maximum rainfall intensity of single storm and the vegetation height index. The adjustment coefficients of rill erodibility depended on soil components of size distribution curve and total rainfall depths in single storm. The adjustment coefficients of interrill erodibility decreased with increases of maximum rainfall intensity and vegetation height index. These results may be used in the application of WEPP model for wildfire mountain slopes.

3-D Positioning by Adjustment of the Rational Polynomial Coefficients Data of IKONOS Satellite Image (IKONOS 위성영상 RPC 자료의 수정보완에 의한 3차원 위치결정)

  • 이효성;안기원;신석효
    • Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
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    • 2004.04a
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    • pp.279-284
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    • 2004
  • This paper presents on adjustment methods of the vendor-provided RPC(Rational Polynomial Coefficient) of GEO-level stereo images for the IKONOS satellite. RPC are adjusted with control points by the first-order polynomial and the block adjustment method in this study. As results, the maximum error of 3D ground coordinates by the adjusted RPC model did not exceed 4m. The block adjustment method is more stability than the first-order polynomial method.

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Factors Affecting Nursing Students' Adjustment to College Life (간호대학생의 대학생활 적응에 대한 영향요인)

  • Han, Jong-Sook
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.16 no.7
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    • pp.4459-4466
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    • 2015
  • This study was conducted to identify the factors that influence nursing students' adjustment to college life. Self-report questionnaire surveys were conducted toward 333 South Korean nursing students to measure emotional intelligence, perfectionistic self-presentation, and clinical stress. Data were collected from October 20th to December 8th, 2014. The collected data were analyzed by using t-test, one way ANOVA, Pearson correlation coefficient, and multiple linear regression analysis. The results indicated that emotional intelligence, religion, perfectionistic self-presentation significantly influenced on the adjustment to college life and the explanatory power of the model was 27.2%. Based on the study results, we suggest that it is necessary to develop and apply the educational strategy to improve the emotional intelligence for the adjustment to college life.

The relationship between hardiness and psychosocial adjustment of persons with a colostomy (결장루 보유자의 강인성과 사회심리적 적응과의 관계)

  • 이은남
    • Journal of Korean Academy of Nursing
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    • v.21 no.2
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    • pp.218-229
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    • 1991
  • The problem addressed by this study were to explore the effect of hardiness on psychosocial adjustment of persons with a colostomy and to identify factors which influence that psychosocial adjustment. The purpose was to suggest a theoretical base for the planning of supportive nursing interventions to increase the level of adjustment. Among members of the Korea Ostomy Association, 34 subjects who had undergone colostomy from March, 1990 to March, 1991 were selected as the sample. Data were collected from April 8 to May 8, 1991 using a mailed questionnaire. The instruments used for this study were the Health -Related Hardiness Scale(Pollock, 1984) and the Psychosocial Adjustment to illness Scale (Derogatis, 1975). ANOVA, Pearson correlation coefficient and Stepswise Multiple Regression were used for data analysis. The results of the study are summarized as follows. 1. Hardiness was significantly related to psychosocial adjustment(p=0.009). That is, the higher the hardiness, the higher the level of psychosocial adjustment. 2. Among the demographic variables, only economic level was significantly related to the level of psychosocial adjustment. (p=0.005). 3. The important factors influencing the level of psychosocial adjustment of persons with a colostomy were economic level, commitment, challenge (subconcepts of hardiness). Therefore, in order to increase the level of the psychosocial adjustment, it might be helpful to provide them with hardiness training to strengthen their commitment and their challenge.

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The Relationships Between Peer Attachment, Self-esteem and Adjustment to College Life in Female College Students (여대생의 또래애착과 자아존중감 및 대학생활 적응과의 관계)

  • Sung, Mi-Hae
    • Journal of Korean Public Health Nursing
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    • v.22 no.1
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    • pp.84-96
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    • 2008
  • Purpose: To consider how college students' adjustment to college life is related to peer attachment and self-esteem. Method: The subjects were 183 female college students attending one university. The study data were collected with the inventory of peer attachment-revised version, the self-esteem inventory, and the inventory for adjustment to college life. The data were analyzed by t-test, ANOVA, Pearson correlation coefficient and stepwise multiple regression. Results: There were significant differences in self-esteem according to residence type. There were significant differences in the adjustment to college life according to monthly income. There was a significantly positive correlation between peer attachment and adjustment to college life. There were significantly positive correlations between self-esteem and adjustment to college life and all of the subscales of adjustment to college life. Stepwise multiple regression analysis showed that 28.6% of the adjustment to college life was significantly explained by self-esteem and monthly income. Conclusion: Based on these findings, peer attachment is a very important factor influencing self-esteem which is itself a very important factor influencing adjustment to college life in female college students. Therefore, an alternative program designed to increase the self-esteem and peer attachment of female college students should be a planned program based on the study results.

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Relationship between Anxiety and Cellular Phone Addiction in Undergraduate Students: The Mediating Effect of Adjustment to College Life (대학생의 불안과 휴대폰 중독과의 관계: 대학생활적응의 매개효과)

  • Park, Yeoun-Hee;Jeong, Byeong-Goo
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.16 no.12
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    • pp.2771-2776
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    • 2012
  • The purpose of this study was to investigate an association between anxiety, cellular phone addiction and adjustment to college life in undergraduate students using structural equating model (SEM). This study was verify whether adjustment to college life mediated the relationship between anxiety and cellular phone addiction. Participants of this study were 479 undergraduate students in Gwangju city in accordance to convenience sampling. SPSS 15.0 was employed for descriptive statistics, Pearson correlation coefficient, calculation for cronbach's ${\alpha}$ coefficient, exploratory factor analysis. Also, AMOS 7.0 was employed for confirmative factor analysis and path analysis of casual relation among variables and effect. The results of this study can be summarized as follows. First, anxiety had a negative effect on adjustment to college life and adjustment to college life had a negative effect on cellular phone addiction. Second, anxiety had a positive effect on cellular phone addiction. Third, it was founded that adjustment to college life partially mediated the relationship between anxiety and cellular phone addiction.

Estimating Cost Adjustment Factors of Software Development Projects using Analytic Hierarchy Process (AHP를 이용한 소프트웨어 개발비 보정계수 산정)

  • Kim, Woo-Je;Park, Chan-Kyoo;Shin, Soo-Jeong
    • IE interfaces
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    • v.17 no.spc
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    • pp.1-10
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    • 2004
  • The purpose of this paper is to reorganize cost adjustment factors of software development projects in estimating software development cost, and derive adjustment coefficients of application types and language types by analytical hierarchy process. We constructed a decision-making hierarchy of various criteria which determine the complexity of application types and language types, and conducted a survey on the pairwise comparison among alternatives. Finally, the cost adjustment coefficients of application types and language types were derived by analytic hierarchy process. This paper is the first study in which the analytic hierarchy process was applied to the field of estimating cost adjustment factors of software development projects.

Influence of Self-directed Learning Ability and Creativity on College Adjustment in Nursing Students (간호학생의 자기주도적 학습능력과 창의성이 대학생활적응에 미치는 영향)

  • Park, Hyeon-Sook;Jeong, Kyung-Soon
    • The Journal of Korean Academic Society of Nursing Education
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    • v.19 no.4
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    • pp.549-557
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    • 2013
  • Purpose: The purpose of this study was to investigate the effects of self-directed learning ability and creativity on college adjustment in nursing students. Method: Data were collected by questionnaires from 148 nursing students in October, 2010. Collected data were analyzed using descriptive statistics, independent t-test, one-way ANOVA, Pearson's correlation coefficient and stepwise multiple regression. Results: A positive correlation was found for college adjustment with self-directed learning ability and creativity. Self-directed learning ability and major satisfaction were significant predictors of college adjustment. The model explained 44.1% of the valuables. Conclusion: The results of this study suggest that self-directed learning be considered when developing strategies to increase college adjustment in nursing students.

Ruin Probability on Insurance Risk Models (보험위험 확률모형에서의 파산확률)

  • Park, Hyun-Suk;Choi, Jeong-Kyu
    • The Korean Journal of Applied Statistics
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    • v.24 no.4
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    • pp.575-586
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    • 2011
  • In this paper, we study an asymptotic behavior of the finite-time ruin probability of the compound Poisson model in the case that the initial surplus is large. To compare an exact ruin probability with an approximate one, we place the focus on the exact calculation for the ruin probability when the claim size distribution is regularly varying tailed (i.e. exponential claims and inverse Gaussian claims). We estimate an adjustment coefficient in these examples and show the relationship between the adjustment coefficient and the safety premium. The illustration study shows that as the safety premium increases so does the adjustment coefficient. Larger safety premium means lower "long-term risk", which only stands to reason since higher safety premium means a faster rate of safety premium income to offset claims.

Effect of Clinical Stress and Stress Coping on College Adjustment in Nursing Students (간호대학생의 임상실습 스트레스와 스트레스 대처방식이 대학생활 적응에 미치는 영향)

  • Lee, Ji-Won;Eo, Yong-Sook
    • The Korean Journal of Health Service Management
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    • v.7 no.2
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    • pp.125-134
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    • 2013
  • The purpose of this study was to identify the influencing factors of college adjustment in nursing students. A quantitative descriptive design was used to study 400 nursing students in Busan and Ulsan, recruited from May 1 to 30, 2011. The instruments used were the clinical stress scale, stress coping scale and college adjustment problem checklist. The data were analysed SPSS program, using descriptive statistics, Pearson correlation coefficient, and simultaneous multiple regression. Findings of the study can be summarized as follows; First, the average of clinical stress was 3.68 points, the problem-solving coping was 2.85 points, the emotional-focused coping was 2.48 points, and college adjustment was 3.03 points. Second, The correlation of the clinical stress and college adjustment relations showed negative correlation in all areas. The correlation of problem-solving and emotional-focused coping and college adjustment showed positive correlation. Third, The significant predictors of college adjustment were satisfaction in major, psychological factors, problem-solving coping, perceived health status, emotional-focused coping, knowledge, skills, assignment/reports. These variables showed explanatory power of 43.2%. The study suggested to help reduce clinical stress and to strengthen problem-solving coping for college adjustment in nursing students.