http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
산림휴양지 유형에 따른 피톤치드(모노테르펜) 농도 비교
이용기,우정식,최시림,신은상,Lee, Yong-Ki,Woo, Jung-Sik,Choi, Si-Rim,Shin, Eun-Sang 한국환경보건학회 2015 한국환경보건학회지 Vol.41 No.4
Objectives: This study was conducted to provide scientific and effective information on phytoncides, which are associated with forest healing, and to activate recreational forests. Methods: The target sites were natural recreation forests, a forest park and an arboretum, and the control sites were three urban parks. The samples were collected at a volume of 6.0 L and a flow rate of 0.1 L/min for one hour using a low volume pump and the solid adsorbent sampling method. The phytoncide compounds adsorbed in the Tenax TA tube were analyzed by a automatic heat desorption unit and GC-MS. Results: By type of recreational forest, the annual concentrations of phytoncide (monoterpene) for the forest park showed the highest concentration with $1.450{\mu}g/m^3$, while those for the arboretum showed the lowest concentration at $0.892{\mu}g/m^3$, and thus the concentration of the forest park was approximately 1.6 times higher than the arboretum. The season showing the highest concentration of phytoncides was summer (June) and the forest park was the highest among the recreational forests. The concentrations of major components for phytoncide showed in descending order: ${\alpha}-pinene$, ${\beta}-pinene$, camphene, 3-carene and limonene. The seasonal concentration of ${\alpha}-pinene$, camphene and ${\beta}-pinene$ by type of recreational forest increased in April, which is characterized by low temperature and humidity, and the seasonal concentration of camphene decreased with higher humidity. The meteorological factors which had the high correlation with the concentration of total terpene were temperature and humidity. $CO_2$ and $O_2$ showed an inverse correlation. Conclusion: The major components of phytoncide were ${\alpha}-pinene$, ${\beta}-pinene$, camphene, 3-carene and limonene in descending order of concentration. Further and systematic study on the chemical nature of individual phytoncides, and on the effect of phytoncides on humans needs to be performed.
Hallervorden-Spatz 병 환자의 전신마취 하 치과치료 -증례보고-
이용기,서광석,김현정,염광원,안병덕,Lee, Yong-Ki,Seo, Kwang-Suk,Kim, Hyun-Jeong,Yum, Kwang-Won,Ahn, Byung-Deok 대한치과마취과학회 2007 Journal of Dental Anesthesia and Pain Medicine Vol.7 No.2
Hallervorden-Spatz disease (HSD) is a rare autosomal recessive disorder associated with excessive iron deposition in the basal ganglia. In general, HSD is characterized by onset in first two decade of life and by the presence of extra-pyramidal dysfunction including dystonia, rigidity, choreoathetosis. Other associated features include gait and posture disturbance, intellectual decline, seizure, tremor, dysarthria. These signs and symptoms are progressive. MRI is often demonstrated hypodensity in the basal ganglia which is probably suggestive of accumulation of iron. There is no specific treatment for HSD and 45% of patients die before reaching the age of 20 years. The managements directed at specific symptoms are often helpful. Especially, some surgical procedures like pallidotomy and gastrostomy are performed under general anesthesia. There is special need for careful management because of numerous anesthetic challenges like difficulty in cooperation, life-threatening airway obstruction and possibility of aspiration. We report a successful anesthetic management in a patient with HSD for dental procedures.
The Effect of Festival Environment on Tourist Satisfaction and Loyalty
Lee Yong Ki(이용기),Choong Ki Lee(이충기),Seung Gon Lee(이승곤) 한국마케팅과학회 2005 한국마케팅과학회 학술대회 발표 논문집 Vol.- No.-
This study particularly attempted to shed light on the influence of dimensions of festival environment (convenience, staff, Information, program content, facilities, souvenirs, and food) on tourists’ emotion and satisfaction. This study also investigated the Influence of festival environment on loyalty through direct effects. The results of this study showed that the four dimensions of destination image have a differential Influence on tourists’ perceptions on service quality and affect, which in tum are found to influence tourist satisfaction, intention to revisit, and willingness to recommend Korea to others directly and indirectly.
한국 쌀 산업의 국경보호정책 관세화 유예 최선의 선택인가 ?
이용기(Yong Kee Lee) 한국농업경제학회 2001 農業經濟硏究 Vol.42 No.3
Two border protection measures, tariffication and quota with minimum market access (MMA), both of which are legally applicable under the WTO regime are examined and compared theoretically in order to find the better choice to effectively protect Korean rice industry. Unlike the previous works on this issue, this study attempts to analyze the long-run effects based on the equivalence between tariff and import quota. In the long run, there generally occur the structural changes both in demand and supply such as the changes in income, population, consumer preferences, technologies, input prices, etc. This study shows that MMA is not necessarily better choice in terms of the effective protection of domestic rice industry. Rather, there exists high possibility that tariffication might be more preferable, considering the long-run structural changes.