• 농업과학연구
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• 제47권4호
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• pp.727-742
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• 2020

Point cloud-based 3D maps can obtain many kinds of information for maintenance work on forest road networks. This study was conducted to compare the importance of each factor to select the factors required for the mapping of 3D forest road maps. This can be used as basic data for attribute information required to maintain forest road networks. The results of this study found that out of a total of 30 indexes extracted for mapping 3D forest roads, a total of 21 indexes related to stakeholder groups were significantly different. The importance of the index required by the civil service group was significantly higher than that of the other groups overall. In the case of the academic group, the index importance for cut slope, fill slope, and drainage facility was significantly higher. On the other hand, the index importance for the forestry cooperative and forest professional engineer group was mostly distributed between the civil servants' group and the academic group. In particular, the type of drainage system showed the highest value among the detailed indexes. Overall, drainage related factors in this survey had high coefficient values. The impact of water on forest roads was the most important part in road maintenance. In addition, the soil texture had a high value in relation to slope stability. This is thought to be because the texture of the soil affects the stability of the slope.

• 인간식물환경학회지
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• 제24권6호
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• pp.693-705
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• 2021

Background and objective: This study was conducted to investigate the effects of forest therapy programs on reducing post-traumatic stress disorder (PTSD), depression and improving mood states in fire officers. Methods: To determine PTSD, depression, and mood states before and after the forest therapy program, the survey results of 185 fire officers were analyzed. Frequency analysis was conducted to identify the demographic characteristics of the participants, and Wilcoxon signed-rank test to analyze the differences among group. Results: As a result of a comparative analysis of PTSD before and after the program, there was a significant decrease in PTSD from 10.65 ± 12.00 to 5.64 ± 8.29 after the program. Depression also showed a statistically significant difference from 3.21 ± 4.00 to 2.21 ± 3.47 after the program. As a result of comparatively analyzing mood states before and after the program, there was an increase in positive factors and a decrease in negative factors. Total mood disturbance (TMD) also showed a statistically significant decrease from 5.78 ± 17.37 to -7.38 ± 10.35 after the program. Conclusion: This study has significance in verifying that forest therapy programs can bring psychological changes to fire officers, and these results can be used as a basis for stress management and relief of fire officers.

• The Plant Pathology Journal
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• 제17권6호
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• pp.388.4-389
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• 2001

• 한국응용곤충학회:학술대회논문집
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• 한국응용곤충학회 2002년도 추계 합동 특강 및 학술발표대회
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• pp.110-110
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• 2002

• 한국농림기상학회:학술대회논문집
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• 한국농림기상학회 2013년도 추계 학술발표논문집
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• pp.60-66
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• 2013

• 한국농림기상학회:학술대회논문집
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• 한국농림기상학회 2019년도 하계 학술발표초록집
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• pp.313-314
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• 2019

• 한국환경과학회지
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• 제13권5호
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• pp.441-448
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• 2004

The purpose of this research was to investigate and analyse the internal structural organisation of UK's urban fringe management initiatives and its roles. Caerphilly Mountain Countryside Service and Thames Chase Community Forest Initiatives were investigated. The Caerphilly Mountain Countryside Service Initiative operates through a tiered structure consisting of the Caerphilly Mountain Joint Committee, the Officers' Working Party, and the management team. The Thames Chase Community Forest Initiative is operated through a tiered structure comprising the Thames Chase Joint Committee and the management team. Although the role of each management initiative is invested differently in certain internal organisational bodies, such as the governance body and the management body, what is common to all the urban fringe management initiatives is that the governance body within each management initiative tries to speak with one voice to bring about an effective operation process, and the management team employs a variety of devices to secure the enrolment of a variety of interest groups in its operational processes.

• 한국자원식물학회지
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• 제25권4호
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• pp.504-506
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• 2012

'Yellow Tiara'는 돌연변이 유기용 화학물질인 MMS(methyle methane sulfonate)용액을 이용하여 돌연변이 개체를 유기하고 그 중에서 연두색의 잎을 가진 식물체를 선발하여 영양번식한 품종이다. 2004년부터 3년간 특정검정을 실시하였는데, 'Yellow Tiara'는 잎 전체가 순수한 연두색으로서 년 중 색상에 변함이 없고 특성이 균일하게 발현된다. 잎의 색상이 독특하고 분화 및 화단용 반음지성 지피식물로 이용될 수 있는 유용한 신품종이다.

• 융합보안논문지
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• 제23권5호
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• pp.73-79
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• 2023

사이버 위협은 기술의 발전에 따라 진화되고 정교해지고 있으며, DDoS 공격으로 인한 서비스 장애를 발생 이슈들이 증가하고 있다. 최근 DDoS 공격은 특정 서비스나 서버의 도메인 주소에 대량의 트래픽을 유입시켜 서비스 장애를 발생시키는 유형이 많아지고 있다. 본 논문에서는 대역폭 소진 공격의 대표적인 공격 유형인 Syn Flooding 공격의 데이터를 생성 후, 효과적인 공격 탐지를 위해 Random Forest, Decision Tree, Multi-Layer Perceptron, KNN 알고리즘을 사용하여 비교 분석하였고 최적의 알고리즘을 도출하였다. 이 결과를 토대로 Syn Flooding 공격 탐지 정책을 위한 기법으로 효과적인 활용이 가능할 것이다.

• Journal of Forest and Environmental Science
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• 제35권4호
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• pp.258-262
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• 2019

This study was aimed to clarify the morphological and ecological characteristics of Dolichomitus cephalotes and Dolichomitus curticornis in order to provide basic data to be used for biological control against Monochamus saltuarius. D. cephalotes and D. curticornis are univioltine in the central region of Korea and overwinters as larval stage inside the cocoon. Both species are ectoparasitoid, and a solitary parasitoid. D. cephalotes adults are emerged from the beginning of April to the middle of May, while D. curticornis adults are emerged from late April to mid-May.