• 자원환경지질
• /
• 제30권3호
• /
• pp.263-275
• /
• 1997

Compound calcrete deposits are recognized from the Dadaepo Formation in Dusong peninsula, Pusan, and their textures, structures, morphology, and stratigraphic distribution are examined. The Dadaepo Formation in study area consists of fluvial plain deposits including floodplain-lake deposits, and the compound calcrete deposits occur above floodplain deposits and below lacustrine deposits. The compound calcrete deposits are composed of nodular to massive (micritic), laminar, nodular, nodular to massive (marly), and marly calcrete deposits. In these calcretes, circumgranular and curved cracks, alveolar structures, fitted peloids, tubular fenestrae with laminar micrite wall (rootlet casts), microstalactic calcite, and tepee structures are observed, which indicates that they are calcic paleosols. Considering their stratigraphic occurrences and pedogenic origin, compound calcrete deposits are interpreted to have formed on distal fluvial plain to palustrine environment by the repetetion of deposition and subsequent calcification due to alternation of lake expansion and contraction. The repetetion of calcrete formation suggests that arid climatic condition was alternated with humid condition in short-term period. Such alternated paleoclimatic condition is similar to those of the Sindong and Hayang groups, and indicates that short-term fluctuations from arid to humid climate were prevailing in overall Gyeongsang Basin. In stratigraphic sense, the compound calcrete deposits can be used as a marker deposit for the correlation of the Dadaepo Formation.

• Journal of Biosystems Engineering
• /
• 제27권5호
• /
• pp.381-390
• /
• 2002

Direct seeding of rice-seed pellets is expected to be an alternative for solving problems in current direct seeding cultivation of rice. but mass production of rice-seed pellets is prerequisite for practical application. Design. construction and performance evaluation of an experimental rice seed pelleting machine were carried out for mass production of rice-seed pellets. The pelleting machine intended to make a ball type rice-seed pellet, which have 3∼5 rice seeds and diameter of which is 12 mm. Pellet materials ; rice seeds, soil, and binder were mixed and kneaded by the mixer. The designed rice seed pelleting machine fed pellet materials by screw conveyor to forming rolls and made rice-seed pellets. Capacity, ratio of perfect rice-seed pellets, seed and pellet material loss were investigated as mixing ratio of soil to rice seed and feeding rate of pellet materials. The pelleting machine showed up to 37,000 pellets/h of pelleting rate, 61∼71% of weight ratio of perfect rice-seed pellets to pellet materials supplied, 17∼48% of seed loss ratio. Average weight and average diameter of the pellets were 1.66 g and 12.0 mm. respectively. More than 3 rice seeds were included in most pellets at 6 : 1 of mixing ratio of soil to rice seed. And compression strength of the pellets was in the range of 88-130 N. To improve performance of the pelleting machine, improvements of the forming rolls, feeding mechanism, and discharging mechanism for reducing loss of pellet materials and seeds damage are needed.

• 재활간호학회지
• /
• 제9권2호
• /
• pp.109-116
• /
• 2006

Purpose: This study is a descriptive research in which the pathological syndromes of the schizophrenic patients in the community mental health centers, the degrees of the insights, and the correlations between them were examined. Method: The subjects included 114 SPR pt. people who were enrolled in community mental health centers located in D City. The research was conducted during the period from Aug. 1st, 2002 to Jul. 30th, 2004. The instruments were PANSS developed by Kay(1987) and SUMD developed by Amador(1993). Results: Among the pathological syndromes, positives ones were $12.64{\pm}3.80$ on the average, negative ones were $32.00{\pm}5.36$, and general pathological syndromes were $30.50{\pm}6.24$. In the evaluation of the insights, the mean score was $11.81{\pm}5.09$. There were some significant correlations between positive syndromes and general pathological ones (r=.572, p=.000), and negative syndromes and general pathological ones(r=.262, p=.029), while there was no significant correlation between the insights and the sub-measures of general pathological syndromes. Conclusion: Therefore, the schizophrenic patients taking advantage of the community mental health centers have more negative syndromes than those in hospitalized, and rehabilitation programs are needed to help them continuously. And the further study of the correlations between the pathological syndromes and the degrees of the insights are required, and still, it should be analyzed what effects the insight acquirement brings about to the improvements of the pathological syndromes after the application of the insight-oriented programs.

• 대한간호학회지
• /
• 제47권3호
• /
• pp.406-419
• /
• 2017

Purpose: The aims of this study were to develop a motivational interviewing program for exercise improvement in persons with physical disabilities and to examine the effect of this motivational interviewing intervention. Methods: The study employed a nonequivalent control group pretest and posttest design. A total of 62 persons with physical disabilities (30 in the experimental group, 32 in the control group) were recruited from 2 community rehabilitation centers. The experimental group received 8 sessions of a group motivational interviewing program, scheduled once a week, with each session lasting 60 minutes. Test measures were completed before the intervention, immediately after the end of the intervention, 2 weeks later, and 6 weeks after the end of the intervention. Measures included self-efficacy for exercise, decisional balance for exercise, stage of change for exercise, regularity of exercise, exercise maintenance, and independent living ability. Data were analyzed using the ${\chi}^2-test$, Fisher's exact test, Independent samples t-test, and repeated measures ANOVA, conducted using IBM SPSS Statistics version 18. Results: The experimental group showed a significant increase in self-efficacy for exercise (F=50.98, p<.001), benefit (pros) of exercise (F=24.16, p<.001), and independent living ability (F=50.94, p<.001), and a significant decrease in loss (cons) of exercise (F=26.50, p<.001). There were significant differences between the two groups in stages of change for exercise (p<.001), regularity of exercise (p<.001), and exercise maintenance (${\chi}^2=26.61$, p<.001). Conclusion: The motivational interviewing program has the potential to improve exercise levels in persons with physical disabilities.

• 디지털융복합연구
• /
• 제14권1호
• /
• pp.263-273
• /
• 2016

본 연구는 간호대학생의 임상실습에 대한 자아존중감, 감정노동과 전공만족도 관계를 파악하고자 실시되었다. 연구대상자는 B광역시와 K도 소재 임상실습을 경험한 199명의 간호학생을 대상으로 하였으며, 연구기간은 2015년 8월 3일부터 8월 17일까지이었다. 자료 분석결과 간호대학생의 자아존중감, 감정노동, 전공만족도는 3.53, 3.26, and 3.46점(5점 척도)이었고, 상관관계 분석에서 자아존중감은 전공만족도에 양의 상관관계를 보인 반면 감정노동은 음의 상관관계를 보였다. 전공만족도에 영향을 미치는 회귀분석결과는 대학생활만족도, 학업성적, 자아존중감 이었다. 이들 변수의 설명력은 34%였다. 따라서 간호대학생의 전공만족도를 위해서 대학생활만족도, 자아존중감, 학업성적 관리가 요구된다.

• 디지털융복합연구
• /
• 제15권9호
• /
• pp.355-364
• /
• 2017

본 연구는 아동간호학 임상실습을 경험한 간호대학생의 학습역량 성취도와 임상실습 만족도 그리고 서술형 총평의 분석을 통해 아동간호학 임상실습 학습성과 달성 전략의 기초자료를 제공하기 위하여 시도되었다. 대상자는 B광역시 K대학교의 간호학과 4학년으로 2016년 2월 24일부터 동년 6월 24일까지 아동간호학 실습을 마친 총 115명 이었다. 수집된 자료는 SPSS 18.0 프로그램 및 내용분석으로 결과를 도출하였다. 간호대학생의 학습역량 성취도와 임상실습 만족도는 높게 나타났으며 연령에 따른 학습역량 성취도는 유의한 차이가 있었다. 그리고 아동간호학 임상실습을 통해 '제한된 실습경험에 대한 아쉬움' 등을 보고하였다. 따라서 간호대학생들의 아동간호학 임상실습 학습 목표를 달성하기 위해 기술영역의 학습역량 성취도를 증진시키고, 실습기관에 대한 만족도를 향상시킬 수 있는 임상실습 전략이 필요하다고 본다.

• 디지털융복합연구
• /
• 제15권9호
• /
• pp.283-300
• /
• 2017

연구의 목적은 3년+1년 학제 재학 중인 간호대학생의 프리셉터십 실습 경험을 이해하고 이를 토대로 간호직의 중도 포기를 방지하기 위한 효율적인 실습방안을 제시하기 위함이다. 연구방법은 23명의 참여자를 네 집단으로 나누어 초점 그룹 면담으로 진행하였다. 자료 분석은 Corbin and Strauss 근거이론으로 분석하였다. 본 연구결과는 비교분석을 통하여 이 연구의 중심현상은 '등대 찾아가기'였다. 원인적 조건은 간호업무를 배우는 기회였다. 맥락적 조건은 진짜 신규 간호사가 된 기분, 임상현장의 생생한 정보획득, 학생들의 프리셉터십 실습 교육에 대한 인식 부재로 나타났다. 중재적 조건은 근무환경, 주도적 학습 및 애착심이 도출되었다. 작용/상호작용 전략으로 다양한 환자 및 보호자 맞추어 가기, 남의 일 같지 않은 일 및 아는 것만큼 보임으로 도출되었다. 작용/상호작용의 결과로 뿌듯함 및 신규간호사 역할 배움에 대한 여정이 도출되었다. 본 연구결과는 '등대 찾아가기' 과정에 있는 간호 학생들에게 유용한 임상 실습 향상을 위한 기초를 제공하는데 의미가 있다.

• 디지털융복합연구
• /
• 제16권1호
• /
• pp.207-215
• /
• 2018

본 연구의 목적은 간호사의 여가활동 유형을 분류하고 실증적 분석을 실시하여 여가활동 유형에 따른 직무스트레스 및 직무만족도의 관계를 규명하기 위한 서술적 조사연구이다. 대상자는 B광역시, K시의 종합병원에 근무 중인 간호사를 대상으로 2017년 8월 1일부터 8월 15일까지 이루어졌다. 자료 분석은 빈도, 백분율, 평균과 표준편차, t-test, ANOVA, 상관관계로 분석하였다. 연구결과 직무스트레스는 중간보다 조금 낮았고 직무만족도는 중간보다 약간 높은 정도로 나타났다. 직무스트레스는 여가활동 유형 중 주당 여가활동 횟수와 음의 상관관계가 있는 것으로 나타났으며 직무만족도는 여가활동 유형과 관계가 없는 것으로 나타났다. 결론적으로 간호사의 직무스트레스를 줄이기 위해서는 주당 여가활동 횟수를 증가시켜주는 방안이 필요하겠고, 광범위한 지역의 다양한 간호사를 대상으로 한 추후 연구가 필요하다.

• 한국농공학회논문집
• /
• 제55권6호
• /
• pp.101-112
• /
• 2013

Shuttle Radar Topography Mission Digital Elevation Model (SRTM DEM) offers opportunities to make advances in many research areas including hydrology by providing near-global scale elevation measurements at a uniform resolution. Its wide coverage and complimentary online access especially benefits researchers requiring topographic information of hard-to-access areas. However, SRTM DEM also contains inherent errors, which are subject to propagation with its manipulation into analysis outputs. Sensitivity of hydrologic analysis to the errors has not been fully understood yet. This study investigated their impact on estimation of hydrologic derivatives such as slope, stream network, and watershed boundary using Monte Carlo simulation and spatial moving average techniques. Different amount of the errors and their spatial auto-correlation structure were considered in the study. Two sub-watersheds of Geum and Deadong River areas located in South and North Korea, respectively, were selected as the study areas. The results demonstrated that the spatial presentations of stream networks and watershed boundaries and their length and area estimations could be greatly affected by the SRTM DEM errors, in particular relatively flat areas. In the Deadong River area, artifacts of the SRTM DEM created sinks even after the filling process and then closed drainage basin and short stream lines, which are not the case in the reality. These findings provided an evidence that SRTM DEM alone may not enough to accurately figure out the hydrologic feature of a watershed, suggesting need of local knowledge and complementary data.

• 대한간호학회지
• /
• 제47권6호
• /
• pp.842-853
• /
• 2017

Purpose: This study was conducted to identify effects of debriefing based on the clinical judgment model for nursing students on their knowledge, skill performance, clinical judgment, self-confidence and learner satisfaction during simulation based end-of-life care (ELC) education. Methods: Simulation based ELC education was developed in six steps as follows: selection of learning subjects and objects, development of learning tools, a trial run of simulation-based education, students' skill training, and evaluators' training. Forty-eight senior nursing students (25 in the experimental group and 23 in the control group) participated in the simulation-based ELC education using a high-fidelity simulator. Debriefing based on the clinical judgment was compared with the usual debriefing. Results: ANCOVA showed that there were differences in knowledge (F=4.81, p=.034), skill performance (F=68.33, p<.001), clinical judgment (F=18.33, p<.001) and self-confidence (F=4.85, p=.033), but no difference in satisfaction (t=-0.38, p=.704) between the experimental and control groups. Conclusion: This study found that debriefing based on the clinical judgement model is effective for supporting nursing students for reflecting on clinical judgment and improving their diverse competencies in complex clinical settings such as ELC.