• Carbon letters
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• 제7권1호
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• pp.9-18
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• 2006

Activated carbons were obtained by activating wild cherry stones with different concentrations of phosphoric acid or zinc chloride at different temperatures. The adsorption of $N_2$ at 77 K and of $CO_2$ at 273 K was followed and the data were analyzes by considering different adsorption models. The activated carbons obtained measured high surface area with the most of the surface in all samples located in micropores. Fair agreement was found between the nitrogen surface areas calculated from the BET-, t-, ${\alpha}$- and DR- methods, although the first three are based on surface coverage whereas the latter is based on micropore filling. The carbon dioxide surface areas calculated by the DA equation were smaller than the comparable nitrogen areas. This was ascribed to domination of surface coverage mechanism, the absence of activated diffusion process. Based on this explanation the $CO_2$-surface areas as calculated by DA equation should be taken with great reservation.

• Carbon letters
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• 제7권3호
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• pp.188-195
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• 2006

Phosphoric acid-activated carbon WP's and zinc chloride-activated carbons WZ's were developed from wild cherry stones. The textural properties of the activated carbons were determined from nitrogen adsorption data at 77 K and the chemistry of the carbon surface, i.e. the surface carbon-oxygen groups (type and amount) was determined from the base and acid neutralization capacities (Boehm method). The adsorption of phenol, p-nitrophenol, p-chlorophenol, dinitrophenol and dichlorophenol was followed at 298 K. The activated carbons obtained were characterized by high surface area and large pore volumes as well as by high surface concentration of C-O groups. The investigated carbons exhibited high adsorption capacities towards phenols with these capacities increased with the increase of molecular weight and the decrease of the solubility of phenol in water. However, no general relationship could be observed between the adsorption capacities of carbons and any of their textural parameters or their surface chemistry. This may be attributed to the many factors controlling phenol adsorption and the different types and mechanisms of adsorption involved.

• Journal of Species Research
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• 제5권3호
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• pp.368-371
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• 2016

From the soil biodiversity study, we found a species, Phauloppia lucorum (C.L. Koch, 1841) in the family of Oribatulidae (Acari: Oribatida) from the straw mat covering the cherry trees during winter in 2011. This species inhabiting litter and soil of forest, moss and lichens on tree and stones is distributed in the eastern Asia and western and central parts of Europe. In this paper, we illustrate the diagnostic features of a new species with detailed diagrammatic representations and its geographical distribution.

• 한국전통조경학회지
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• 제29권3호
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• pp.22-32
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• 2011

남원시 산내면 대정리에 위치한 조선 후기 퇴관(退官) 선비의 장구지소(杖屨之所) 매천별업 퇴수정원림의 조영요소와 이곳에 투영된 작정의도 및 의미경관적 요소의 추적을 통해 다음과 같은 결과를 얻었다. 퇴수정원림은 매천 박치기가 퇴관 후 은거를 위해 1870년 조영한 별서형 누정원림으로, 별업 경영의 면모를 기록한 '퇴수정기(退修亭記), 반선대기(伴仙臺記), 반선대10영(伴仙臺十詠), 퇴수정상량문(退修亭上樑文), 퇴수정원운병소서(退修亭原韻幷小序) 그리고 기타 현판과 주련 등의 기문에서는 조영자와 별업 조영의지 및 자연친화적 산수경영의 의도가 읽혀진다. 퇴수정원림의 공간구성 체계는 '퇴수정권역, 관선재권역, 계정권역' 등 세 권역으로 대별되며, 원림 주변에 새겨진 '매천별업(梅川別業) 반선대(伴仙臺) 심진암(尋眞巖) 야박담(夜泊潭)' 등의 암각서는 원림의 영역성을 규정하는 동시에 원림 작정과 관련한 다양한 의미경관적 요소로 작용하고 있다. 또한 유상하며 곡수연회를 베푼 곡수유거(曲水流渠)의 조탁 흔적은 문화경관으로서의 별업의 의미를 한층 강화시켜 주고 있다. 더불어 '반선대기'와 '퇴수정원운'의 반선대10영 등의 시문에서는 공간의 의미부여 및 자연 관조를 통해 신선지향적 별업원림(別業園林)을 구축하고자 했던 매천 박치기의 조경가적 면모가 읽혀질 뿐 아니라 귀거래(歸去來)하여 퇴수(退修)하는 은사지소(隱士之所)이자 풍류지처(風流之處)로서의 현학적 의미경관 요소들이 추출된다. 퇴수정원림의 현존 식물상 및 주요 식생요소는 후원에 펼쳐진 송림을 비롯하여 느티나무, 산벚나무, 살구나무 그리고 물가 쪽으로 굽은 소나무 등이 파악되는데, 도입종인 미류나무와 퇴수정 전면으로의 경관 조망에 장애가 되는 일부 수종을 제외하고는 대부분 자연에 의탁하여 이루어진 천연적 경관 면모를 보여준다.