Zobrazeno 1 - 10 of 23 pro vyhledávání: '"Du Song Cha"'
1
Comparison of Productivity and Cost Between Two Integrated Harvesting Systems in South Korea
Autor: Seung-Ho Paik, Du-Song Cha, Min-Jae Cho, Ho-Seong Mun, Yun Sung Choi, Jae-Heun Oh, Sang-Kyun Han
Publikováno v: Forests
Volume 10
Issue 9
Forests, Vol 10, Iss 9, p 763 (2019)
Interest in the production of renewable energy using forest biomass is increasing in South Korea, and improved knowledge on operations logistics to lower biomass harvesting costs is needed. This study aimed to build a low-cost forest-biomass harvesti
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::09abbaab7df3fb861c7c50607a62d445
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2
Productivity and Costs of Felling Operation for Three Harvesting Methods in Mixed Forest Stands
Autor: 최윤성 ( Yun Sung Choi ), 오재헌 ( Jae Heun Oh ), 정응진 ( Eung-jin Jeong ), 조민재 ( Min Jae Cho ), 차두송 ( Du Song Cha ), 한상균 ( Sang Kyun Han ), 이은재 ( Eun-jai Lee ), 문호성 ( Ho-seong Mun ), 김대현 ( Dae Hyun Kim )
Publikováno v: Journal of Korean Forest Society. 105:441-448
본 연구는 동일한 임분조건에서 작업자 2명(A: 작업경력 5년 이하, B: 작업경력 15년 이상)을 대상으로 임목수확방법별(전목수확·전간수확·단목수확)에 따른 벌도작업의 작업생산성과 비용
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7898d5c70611fc5d1d76e1ada20c24e3
https://doi.org/10.14578/jkfs.2016.105.4.441
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5
Harvesting Cost and Productive of Tree-Length Thinning in a Pinus densiflora Stand Using the Tower Yarder (HAM300)
Autor: Sang-Kyun Han, Du Song Cha, Jun Lee, Koo-Hyun Cho, Min-Jae Cho, Eung-Jin Jeong, Byoungkoo Choi
Publikováno v: Journal of Forest and Environmental Science. 32:189-195
Logging equipment and method have a major influence on harvesting productivity and cost. This study investigated the productivity and operational costs of tree-length cable yarding system using HAM300, a domestically developed tower yarder. We tested
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::86ede740e515af481cce73eb114b9f35
https://doi.org/10.7747/jfes.2016.32.2.189
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6
Harvesting Cost of Tree-length Thinning in a Larix leptolepis Stands
Autor: Min-Jae Cho, Sang-Kyun Han, Koo-Hyun Cho, Du-Song Cha, Han-Sup Han
Publikováno v: Journal of Korean Forest Society. 104:221-229
The purpose of study was to broaden our knowledge on the productivity and cost of thinning operations which has become increasingly practiced in Korea. The thinning operations were conducted in a 40-year old larch (Larix leptolepis) stand, including
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cf35795ae24b64086d4688d0f4773b76
https://doi.org/10.14578/jkfs.2015.104.2.221
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9
Fuel Properties of Woody Pellets in Domestic Markets of Korea
Autor: Jae-Heun Oh, Du-Song Cha, Jin-Sung Hwang
Publikováno v: Journal of Forest and Environmental Science. 30:362-369
This study investigated physical properties and combustion gas characteristics for 8 types of wood pellets (4 domestic and 4 imported products) distributed in the domestic market. Results showed that most pellet types were first-grade pellets in the
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b9f530e97c2fb077a01ce9f85cfb09f9
https://doi.org/10.7747/jfes.2014.30.4.362
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10
Analysis on Soil Reinforcement by Lespedeza cyrtobotrya Roots for Slope Stability
Autor: Jin-Sung Hwang, Du-Song Cha, Byoung-Yun Ji, Jae-Heun Oh
Publikováno v: Journal of Forest and Environmental Science. 30:113-119
To examine the soil reinforcement by the shrub with shallow root systems for slope stability, we developed insitu apparatus for direct shear test and conducted the insitu field tests for Lespedeza cyrtobotrya, a representative revegetation species fo
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::133b3c06b6095e47f982df67396c40cd
https://doi.org/10.7747/jfs.2014.30.1.113
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