http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
공업계 고등학교 전자이론 교과의 트랜지스터 교수-학습을 위한 Web 기반 컨텐츠의 개발
박병배(Byung Bae Park),김진수(Jin Soo Kim) 대한공업교육학회 2002 대한공업교육학회지 Vol.27 No.1
The purpose of this study is to increase the learning effects of students in technical high school who are interested in learning transistor unit through web-based class materials. Those materials make it possible to produce the interaction of learners, the learning activity beyond time and space and the strong learning attitude of learners. The general characteristics of the developed class materials based on web by using Namo web editor 4.0 as a manufacturing tool, flash 5.0 and photo shop 5.5 are described as follows. (1) It is easy for learners to get the abundant experiences of learning environments and the relevant knowledge of transistor from basics to applications by using both still image and moving image. (2) Learning achievement will be enhanced by providing additional materials that are less than enough in class activity through internet without the limitation of time and space, if necessary. (3) the interaction between teacher and learner make the bi-directional teaching-learning method possible with the help of web. (4) As learners take part in learning activity strongly, the learning effects will be increased and also the materials will be used as supplementing instrument of class.
연구논문(硏究論文) : 토양개량제 처리가 물푸레나무와 소나무 묘목의 생장과 양분농도에 미치는 영향
박병배 ( Byung Bae Park ),변재경 ( Jae Kyung Byun ),조민석 ( Min Seok Cho ),한시호 ( Si Ho Han ),정문호 ( Mun Ho Jung ),김세빈 ( Se Bin Kim ),배기강 ( Kikang Bae ) 한국환경복원기술학회(구 한국환경복원녹화기술학회) 2016 한국환경복원기술학회지 Vol.19 No.2
The production of high quality seedlings is a very important phase in silvicultural systems for successful reforestation or restoration. The purpose of this study was to measure both growth performances and nutrient responses of Fraxinus rhynchophylla and Pinus densiflora seedlings, which are commercially planted in Korea, according to soil improvement treatments. We applied 8 types of soil improvements: control with no treatment, compost B and compost Y as organic materials, vermiculite, perlite, two level of zeolite, and mix of vermiculite, perlite, and zeolite as inorganic materials in a permanent national nursery. Only compost B treatment significantly increased soil pH, organic matter, total nitrogen, available phosphorus, exchangeable potassium and calcium at the 0-10 cm soil depth. The growth of F. rhynchophylla and P. densiflora was the highest at the compost B treatment and the lowest at the vermiculate treatment. Compost B treatment allocated more carbon to aboveground than belowground by 39%, especially to foliage. On the vector diagnosis, there was ``shortage`` on compost B treatment because of all increases of N contents, N concentrations, and growth and ``over accumulation`` on vermiculite treatment because of more N uptake compared with dry weight increase. This study suggested optimal use of soil improvements is very important to improve soil quality in a permanently used nursery.
중북부 활엽수림과 침엽수림에서 세근과 낙엽,낙지 동태 연구
박병배 ( Byung Bae Park ),안지영 ( Ji Young An ),성주한 ( Joo Han Sung ),한시호 ( Si Ho Han ),백민현 ( Min Hyun Baek ) 한국임학회 2014 산림과학 공동학술대회 논문집 Vol.2014 No.-
낙엽·낙지와 더불어 세근은 온대산림의 탄소와 양분 순환에서 매우 중요함에도 불구하고 연구가 미흡한 실정이다. 본 연구는 낙엽·낙지 생산량과 잔뿌리 생산성의 관계를 구명하기 위하여 광릉장기생태연구지의 5개 활엽수림과 4개 침엽수림에서 수행되었다. 낙엽망과 Ingrowth cores 방법으로 2년 동안 낙엽·낙지량, 잔뿌리 바이오메스, 잔뿌리(직경 2mm 이하) 생산성을 예측하였다. 잔뿌리 턴오버는 활엽수에 비해 침엽수에서 약간 높았으며 잔뿌리 생산성은 2년차에서 138~490 g m-2으로 조사되었다. 낙엽량(340~597 g m-2)은 잔뿌리 생산성보다 높았고 변이가 적었다. 잔뿌리 생산성은 지상부 낙엽량이나 변재 생산성과 관련이 있을 것으로 예측되었으나 이 연구에서는 관계가 없는 것으로 분석되었다. We have short understanding of the relationship between litterfall and fine root dynamics in temperate forest ecosystems even though these are major components in carbon and nutrient cycling. We studied litterfall, fine root biomass and production in five deciduous and four coniferous forests at the Gwangneung Long Term Ecological Research Site in Korea. We used ingrowth cores to measure fine root turnover for two years. Collected roots were divided into living and dead roots with <0.5, 0.5-1, 1-2 and 2-5mm in diameter. Litterfall was separated into leaves, twig, bark, seed, and others and all leaves were further separated by species. Our preliminary results show that fine root turnover rate was 1.68 year-1 for deciduous forests and 2.07 year-1 for coniferous forests. Annual fine root (<2 mm) production ranges from 47 to 335 g m-2 in the first year and from 138 to 490 g m-2 in the second year. The annual litterfall production ranges from 340 to 597 g m-2. For further research, we will test the relationships between the fine root production, litterfall production and environmental variables and the contribution of fine root and litterfall to nutrient dynamics by forest types.