• Journal of Korean Society of Forest Science
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• v.112 no.3
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• pp.331-339
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• 2023

This study was conducted to identify seed inflow characteristics according to harvest typeand to provide basic data for developing a regeneration technology for secondary growth forests in Korean red pine (Pinus densiflora) succession forest formation by natural regeneration. Experimental sites were established by applying seed tree (single and group) and clear-cutting methods (10- 20- 30-m strip and 20- 30- 40-m patch). The seed inflow characteristics of the natural regeneration site were analyzed for 6 years from 2014. Most seeds were flowed to the regeneration stand from October to November. In years with good seed fructification, more than 80% were flowed in October. The average annual seed inflow by harvest type was highest in the seed tree area (296,000 seeds/ha/yr), followed by the 20-m patch clear-cutting area (291,000 seeds/ha/yr) and 10-m strip clear-cutting area (281,000 seeds/ha/yr). The distribution uniformity of seed inflow according to treatment was analyzed in the order of the 20-m strip clear-cutting area (52.2), 20-m patch clear-cutting area (52.9), and 10-m strip clear-cutting area (56.1). As a result, the 10-m strip and 20-m patch clear-cutting areas with relatively small harvest areas showed high seed inflow and distribution uniformity.

• Proceedings of the Korea Information Processing Society Conference
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• 2018.05a
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• pp.256-259
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• 2018

다수의 사용자가 자원을 공유하는 클라우드 센터에서는 자원 사용량 예측이 힘들기 때문에 지속적으로 가상머신의 자원 부족과 특정 물리 서버에 가상머신들이 집중되는 것을 방지하고자 클라우드 센터를 구성하는 다수의 물리 서버 사이에서 가상머신을 이주시키는 마이그레이션 작업을 수행한다. 가상머신 마이그레이션은 가상머신에게 할당된 자원의 규모에 따라 물리 서버에 가상머신을 균등하게 배치시킬 수 있지만 가상머신의 특정 자원에 따른 자원 집중 현상은 방지할 수 없다. 본 논문에서는 가상머신 마이그레이션 작업 시 자원 집중 현상을 방지하기 위한 기반 정보를 생성하는 가상머신 유형분류 기법을 제안한다. 본 논문에서 제안하는 가상머신 유형분류 기법은 물리 서버에서 실행 중인 가상머신의 자원 사용 정보를 기반으로 CPU, 메모리 유형으로 분류하여 가상머신 마이그레이션을 수행할 때 사용할 수 있는 기반 정보를 제공한다. 또한 본 논문에서 제안한 기법은 실험을 통해 무시할 수 있는 수준의 오버헤드를 발생시키는 것을 확인하였다.

• The Journal of the Korea Contents Association
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• v.17 no.2
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• pp.55-70
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• 2017

In order to understand job burnout, it is necessary to consider not only the working environment according to the market environment but also the social situation of the team or the organization. This study analyzed the effects of job demands and job resources on job burnout based on JD-R theory. In other words, the team-level variables, servant leadership and HRM control types, were tested for the effect of moderating the individual workload, emotional labor and job burnout. The results of empirical analysis showed that the higher the self-efficacy, the less job burnout, whereas the higher the workload and emotional labor, the more job burnout. Second, the more positive the team level input and result oriented HRM are, the less positive regression relation of workload and job burnout is. Finally, it was found that the intensity of the regression relation of negative self-efficacy and job burnout was amplified in the team with servant leadership.

• Journal of the Korea Convergence Society
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• v.11 no.12
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• pp.383-390
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• 2020

The present study was conducted to examine the differences and correlations between verbal fluency and story comprehension according to the working memory(WM) capacity, and to find out what WM factors influence the linguistic competence in Alzheimer's disease(AD) and vascular dementia(VaD) groups each consisting of 15 patients. The results of their performance produced firstly significant differences in phonemic fluency, story comprehension, delayed recall and recognition task between the two groups. Further analysis shows that VaD group had significant correlations between the scores of story comprehension and the recognition test scores additionally. These findings suggest that it is possible to differentiate the two groups even by story comprehension tasks and WM. In conclusion, the clinical application of the results is likely to contribute to appropriate treatment plans and effective interventions for elderly with AD and VaD as well as to improve the classification criteria for both types of dementia.

• Proceedings of the KAIS Fall Conference
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• 2011.05b
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• pp.704-707
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• 2011

본 논문에서는 요람기부터 해방을 전후한 시기의 대중가요의 선율 유형을 연구하고자 하였다. 총 109 편의 가요를 분석하는 방법으로서 작품의 첫 제시에 사용된 선율 유형들을 분류하였으며 그 결과 일련의 '선율 그룹(tune family)'이 도출되었다. 이렇듯 유사한 선율들을 범주화하는 작업을 통해 초기 대중가요의 음악적 성격을 이론화하는 것이 본 논문의 목적이다.

• The Journal of Korean society of community based occupational therapy
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• v.2 no.1
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• pp.65-73
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• 2012

Objective : The purpose of this study is to provide basic information for professional education by investigating to learning styles and achievement goal of the first year students in the department of occupational therapy and physical therapy. Methods : 123 first year students of the department of occupational therapy and physical therapy filled out a questionnaire in Gyeongbuk and Kangwon Province. In this study, Kolb's Learning Styles and Elliot & Church's Achievement Goal were used, and to analyze, Pearson correlation, chi-square were used. Results : The results of the study were as follows. 'Accommodator' was the preferred learning type for students, while 'diverger' was not. Collage students differed from university students in learning styles. A mastery level was the preference in the academic goal types of the students. Male students received higher grades on performance approach goals than female and student of department of physical therapy received higher grades on performance avoidance goals than students in the department of occupational therapy. There is a coefficient of correlation between performance avoidance goal and converger learning type. Therefore, first year students in the department of occupational therapy were not differed from the department of physical therapy in academic achievement but collage students differed from university students in learning styles. Conclusion : From these results, we suggested some effective teaching/learning methods based on the mastery achievement goal. An educational approach is necessary for understanding of the students' individual learning styles and achievement goal characteristics are account for students' individual negative/positive characteristics.

• The Korean Journal of Applied Statistics
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• v.21 no.3
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• pp.469-484
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• 2008

This study was intended to examine various work and environmental variables explaining newcomers' turnover intentions. Data were collected from 901 newcomers using online survey. Results of multiple regression analyses showed that individual-job fit, reward dissatisfaction, fringe benefit dissatisfaction, vision in organization, participation in decision making, realistic job preview, leader dissatisfaction, co-worker relationship and work environment explained significant variances of turnover intentions. Data were classified into full-time and part time employees based on employment type and into a large and a small-medium company based on company size. There were small differences in significant variables explaining turnover intentions based on company size as well as employment type. Finally implications and future research were discussed.

• Proceedings of the Korean Information Science Society Conference
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• 1998.10c
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• pp.240-242
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• 1998

컴퓨팅 환경의 발달과 컴퓨터 통신의 대중화에 따라서 공동 작업 환경에 대한 관심이 증가하고 있으며, 공동 저작에 관한 연구가 활발히 진행중이다. 특히 공동 작업 환경에서 사용자간의 상호 작용에서 나타나는 충돌의 해결은 필수적이다. 그러나, 그 동안의 충동에 관한 연구들은 모두 일반적인 공동작업에서의 해결 방법에 국한되어 있으며, 이러한 방식들은, 공동 작업 환경에서 설계/저작 단계에 직접 도입되기 위해서는 저작물의 형태와 특성에 맞게 변경되어야 한다. 본 연구에서는 공동 작업 환경에서 저작물의 구조를 설계하는 단계에서 고려해야 할 사용자들 간의 충돌의 유형을 정의하고 이를 해결할 수 있는 방안을 제시하였다. 이를 통해서 공동 작업 환경에서 공동 저작 시 모든 저작자들의 의견을 반영하는 형태의 저작물을 생성할 수 있으며, 저작물을 사용하는 사용자들에게 사용자의 상황과 특성을 고려한 저작물의 제공을 가능하게 하기 위한 방법을 제시하였다.

• Journal of Korean Society of Forest Science
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• v.106 no.2
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• pp.204-212
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• 2017

Soil disturbance caused by timber harvesting is widely recognized as a potential threat to forest utilization. The degree and extent of soil disturbance is believed to vary with respect to harvesting methods and logging machines. This study has conducted to assess the degree of soil disturbance associated with ground-based cut-to-length (GC) and cable yarding with whole tree (CW) harvesting methods. Soil disturbance was classified using a visual assessment of harvest unit. The properties of soils in different disturbance levels were also evaluated to understand the influence of timber harvesting on soil structure with soil core sampling method. The deep disturbance and soil compaction were observed in sites by 48% and 23% through harvesting areas for GC and CW logging methods, respectively. The results showed that logging machine and number of machine passage had significant influences on soil bulk density and porosity. Soil disturbance types such as rutted, slash cover, and compact were influenced by equipment travel trends in a GC method.

• The Journal of Korean society of community based occupational therapy
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• v.8 no.3
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• pp.13-23
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• 2018

Objective : This study was conducted to investigate the leisure activities and self-efficacy according to sensory processing feature of university students. Methods : The survey was conducted from March to June, 2018. A total of 235 university students in Jeolla and Gyeongsang area participated. We used Adolescent/Adult Sensory Profiles to investigate sensory processing feature, Leisure Activity Questionnaires to examine leisure activities, and Self-Efficacy Scale for self-efficacy. This study identified the frequency of leisure activities of university students, the frequency of leisure activities and self-efficiency according to the sensory processing feature, and the leisure activities according to the feature of sensory seeking. Results : For the frequency of leisure activities and self-efficacy according to sensory processing feature of university students, only sensory seeking showed significantly difference in the leisure activity frequency, and the self-efficacy was significantly difference according to the feature of all types of sensory processing (p<.05). In addition, this study identified that leisure activities according to the feature of sensory seeking showed a significantly difference in gym, watching TV, shopping, internet search and web surfing (p<.05, p<.01). Conclusion : According to sensory seeking feature of university students, leisure activities and self-efficacy showed a significant difference. In order to encourage leisure activities of university students and to improve their self-efficacy, an interventional approach based on an understanding of sensory processing characteristics will be needed.