• 생명과학회지
• /
• 제28권11호
• /
• pp.1262-1267
• /
• 2018

국지적 환경에서 패치 분포 형태는 일차적으로 식물의 공간적 양상으로 나타나고, 임의화 과정은 패치를 결정하는 공간적 가설을 입증하는데 이용된다. 주름조개풀(Oplismenus undulatifolius (Ard.) P. Beauv. var. undulatifolius)은 Poaceae과 Oplismenus 속에 속하는 초본류이다. 이 종은 온대, 아열대, 열대에 분포한다. 이 지역의 주름조개풀이 일정한 분포인지 응집하는 분포인지 여러 패치 지표를 사용하여 분석하였다. 한우산의 집단 밀도는 0.453에서 4.375였으며 평균은 2.387이였다. 소형과 중형 프롯($2m{\times}2m$, $2m{\times}4m$, $4m{\times}4m$, $4m{\times}8m$, and $8m{\times}8m$)에서 주름조개풀은 응집형태를 보였다. 반면에 대형 플롯($8m{\times}16m$, $16m{\times}16m$, and $16m{\times}32m$)에서는 일정한 분포 양상을 나타내었다. 평균 응집 계수(M*)와 패치 지표(PAI)는 양의 값을 보였다. 응집은 여러 환경적 요인에 기인하는데 등산객들에 의해 방해되고 있었다. 따라서 주름조개풀은 이 지역에서 본래의 기본 생태적 지위를 누리지 못하고 있음을 보여주었다.

• 한국응용곤충학회지
• /
• 제57권2호
• /
• pp.77-85
• /
• 2018

국내 분포조사가 되어 있지 않은 긴꼬리가루깍지벌레와 붉은몸긴꼬리가루깍지벌레를 대상으로 3년간(2015~2017년) 281지점의 관엽식물과 666지점의 과수를 조사하였다. 관엽식물의 경우 긴꼬리가루깍지벌레는 34지점에서 발견되었고, 붉은몸긴꼬리가루깍지벌레는 87지점에서 발견되었으나 과수에서는 두 종 모두 발견되지 않았다. 분포조사를 통해 채집한 긴꼬리가루깍지벌레와 붉은몸긴꼬리가루깍지벌레는 실내사육하며 온도별 발육특성을 조사하였다. 긴꼬리가루깍지벌레 암컷 약충은 $14^{\circ}C$에서 정상적인 발육을 하지 못하였으며, $16^{\circ}C$에서는 361.4일로 발육기간이 가장 길었으며 $32^{\circ}C$에서는 39.0일로 가장 짧았다. 긴꼬리가루깍지벌레 암컷 성충수명은 $28^{\circ}C$에서 71.7일로 가장 짧았으며, 산자수의 경우 $32^{\circ}C$에서 177.7마리로 가장 많았다. 붉은몸긴꼬리가루깍지벌레 암컷 약충은 $12^{\circ}C$에서 정상적인 발육을 하지 못하였으며 $14^{\circ}C$에서 184.9일로 발육기간이 가장 길었으며, $28^{\circ}C$에서는 21.5일로 가장 짧았다. 붉은몸긴꼬리가루깍지벌레 암컷 성충수명은 $28^{\circ}C$에서 51.5일로 가장 짧았으며, 산자수의 경우 $28^{\circ}C$에서 143.8마리로 가장 많았다. 세대순증가율($R_0$)과 내적자연증가율($r_m$)은 긴꼬리가루깍지벌레는 각각 $32^{\circ}C$에서 162.3, 0.127이며, 붉은몸긴꼬리가루깍지벌레는 각각 $28^{\circ}C$에서 98.3, 0.139로 가장 크게 나타났다. 따라서, 긴꼬리가루깍지벌레와 붉은몸긴꼬리가루깍지벌레의 최적 온도는 각각 $32^{\circ}C$와 $28^{\circ}C$로 판단되며 국내에서의 월동은 불가능한 것으로 보인다.

• 한국의상디자인학회지
• /
• 제20권2호
• /
• pp.47-62
• /
• 2018

This study examined recycled fashion design utilizing natural images for application to recent trends. This study is significant in that it presents the possibility of the development of recycled women's wear design by reflecting the characteristics and expressions of natural images and using denim material, which is the most common clothing material for everyday life. The results of this study are summarized as follows. First, five types of women's clothing was produced, pursuing a natural design with a soft and feminine silhouette. Second, the colors used were blue and white, which could represent nature. Third, as for materials, this study used clothing that was to be thrown away: four pairs of denim pants and two denim dresses. This study chose denim cloth, with its great value for reuse, because of the characteristics of the strong and durable fiber, because everyone has more than one article of clothing made from denim and because it can be easily sourced. Fourth, for textile motifs, this study expressed a peaceful natural scenery with tropical animals and plants. In addition, this study further emphasized natural images using transfer media printing. This study has significance in that it presented the possibility of recycled fashion design and expanded the range of utilization using transfer media printing, a dyeing treatment to reduce the environmental burden.

• 셀메드
• /
• 제4권1호
• /
• pp.4.1-4.4
• /
• 2014

Gynura segetum, family Asteraceae is a cultivated species and can be found growing in the tropical regions of Indonesia and Malaysia. The plant is known for its use for the treatment of cancer, inflammation, diabetes, hypertension and skin afflictions. In the current study, anti-inflammatory effect of Gynura segetum leaf has been investigated. The present study investigated the in vivo anti-inflammatory effect of Gynura segetum leaf by using hen's egg test-chorioallantoic membrane (HET-CAM) assay. Different solvent extract of Gynura segetum leaf were tested, the most active methanol extract was further fractionated and tested. Among the extracts tested, the methanol extract showed a significant good anti-inflammatory effect (76.8% inhibition at 50 ${\mu}g/disc$) on the HET-CAM assay as compared with the anti-inflammatory drug indomethacin (82.1% inhibition). However, the fractionated sample exhibited a significantly lower activity in comparison to crude methanol extract. The results demonstrated that Gynura segetum leaf displayed remarkable anti-inflammatory effects, which support the folkloric uses of this plant for treatment of inflammation.

• 한국전산유체공학회지
• /
• 제21권2호
• /
• pp.32-39
• /
• 2016

The Gradient Biome is a unique and large greenhouse(length 200 m, width 50 m, height:40 m) in which the elements of the weather, such as temperature and humidity, are controlled and reproduced in such a way as to create a continuous gradient from the tropical to frigid zones along specified longitudinal or transvers lines on the earth. One of the main purposes of the Gradient Biome is to observe the possible responses of the ecosystems (mainly plants), which are to be corresponding to each test climate and be introduced in the Biome, to the expected global warming. As one of the expected responses is the shift of the ecosystem(s) toward the region of suitable environment, there should be no artificial obstacles, which can prevent the shift, inside the facility. However, it is important but not so easy to find the ways of how the temperature and humidity in the Biome could be reproduced since the environmental variables tends to be homogeneous. In this paper, numerical simulations were carried out to find the effective control methods for air temperature and humidity inside the real scale Biome. One of the contributed solvers of OpenFOAM, which is an open source physics simulation code, was modified and used for the simulations.

• 생약학회지
• /
• 제40권4호
• /
• pp.257-279
• /
• 2009

Plants of genus Dioscorea have long been served as important carbohydrate-stuffed foods in the tropical and subtropical regions, and utilized as traditional herb medicines to enhance digestive function, improve anorexia, and treat diarrhea in oriental countries. It is known that around 600 species of Dioscorea are distributed in the world including 107 species in Asia, but actually utilized Dioscorea species are restricted to small numbers. Phytochemical investigations for Dioscorea species have revealed a number of chemical components such as sapogenins, saponins, phenanthrenes, stilbenes, diterpenes and purine derivatives. According to recent pharmacological studies, Dioscorea species possess significant antioxidant, antibacterial and anti-inflammatory activities as well as anticancer, antidiabetic, cholesterol-lowering and hypolipidemic effects. Here, seven Dioscorea species (D. batatas, D. japonica, D. bulbifera, D. opposita, D. tokoro, D. nipponica and D. alata), mainly distributed and used in Korea, China, and Japan, are reviewed to provide their botanical, phytochemical and pharmacological properties were described.

• 식품기술
• /
• 제18권3호
• /
• pp.91-97
• /
• 2005

Nowaday, in Vietnam there are two types of medical services which have coexisted. These are Western medicine or Tay Y and Eastern medicine or Dong Y (this is also known as Oriental medicine). Dong Y is includes Chinese traditional medicine (TCM) or Thuoc Bac and Vietnamese traditional medicine (TVM) or Thuoc nam. In its’ history, Vietnam was dominated by feudal China in more than 1000 years, so that Vietnamese people was impacted much by Chinese thought, culture and medicine of course. Traditional Chinese and Traditional Vietnamese Medicine differ in practice, though they share the same theoretical foundation. Their relationship can be observed by the influence of TCM theories on the TVM which are Yin and Yang, Five Elements. In practice, TCM practitioners usually spend more time giving their patients a sort of theoretical explanation of what's going on, whereas TVM practitioners would use a more practical approach and concentrate less on theory. TVM was popular in common life of working people, generally using ingredients readily available nearby and involving a minimum of processing. Most knowledge was passed unselfconsciously from one generation to the next. It can be said that Vietnamese people are based on theories of TCM and available tropical plant sand animals native to Vietnam to built and develop TVM with it’s own character. The following are some plants are using in normal life of Vietnamese people as food or drink with well-being effect(1,2).

• Journal of Ecology and Environment
• /
• 제35권3호
• /
• pp.157-166
• /
• 2012

Many models intending to explain the latitudinal gradient of increasing species diversity from the poles to the equator are presented, which are a formalisation of the species-energy hypothesis. The model predictions are consistent with patterns of increasing species number with increasing mean air or water temperatures for plants and animals. An increase in species richness is also correlated with net primary production or the Normalised Difference Vegetation Index. This implies that increased availability of resources favours increased diversity capacity. The explanatory variables included in the biodiversity prediction models represent measures of water, energy, water-energy, habitat, history/evolution and biological responses. Water variables tend to be the best predictors when the geographic scope of the data is restricted to tropical and subtropical areas, whereas water-energy variables dominate when colder areas are included. In major models, about 20-35% of species in the various global regions (European, Africa, etc.) will disappear from each grid cell by 2050 and >50% could be vulnerable or threatened by 2080. This study provides good explanations for predictive models and future changes in biodiversity depending on various scenarios.

• 한국전산유체공학회지
• /
• 제18권1호
• /
• pp.43-48
• /
• 2013

The feasibility of a unique greenhouse, named as Gradient Biome, is now being examined extensively in the University of Tokyo. It is a large chamber (length:200m, width:50m, height:40m) in which the weather, such as temperature and humidity, of the tropical zone through to that of the frigid zone on the earth is reproduced with continuous gradient. In the Gradient Biome, ecosystems (mainly plants) corresponding to each weather are introduced and the possible responses of this ecosystems to the expected global warming are to be observed. Since one of the expected responses is the shift of the ecosystem(s) toward the region of suitable environment, there should be no artificial obstacles, which can prevent the shift, inside the Biome. This requirement is not so easy to be satisfied since the environment tends to be homogeneous. This paper presents the results of the numerical studies conducted to find the ways of how the temperature and humidity in the Gradient Biome could be reproduced. One of the contributed solvers of OpenFOAM, which is an open source physics simulation code, was modified and used for the numerical simulations.

• Parasites, Hosts and Diseases
• /
• 제47권4호
• /
• pp.377-380
• /
• 2009

Growing patterns of pediculocidal drug resistance towards head louse laid the foundation for research in exploring novel anti-lice agents from medicinal plants. In the present study, various extracts of Pongamia pinnata leaves were tested against the head louse Pediculus humanus capitis. A filter paper diffusion method was conducted for determining the potential pediculocidal and ovicidal activity of chloroform, petroleum ether, methanol, and water extracts of P. pinnata leaves. The findings revealed that petroleum ether extracts possess excellent anti-lice activity with values ranging between 50.3% and 100% where as chloroform and methanol extracts showed moderate pediculocidal effects. The chloroform and methanol extracts were also successful in inhibiting nymph emergence and the petroleum ether extract was the most effective with a complete inhibition of emergence. Water extract was devoid of both pediculocidal and ovicidal activities. All the results were well comparable with benzoyl benzoate (25% w/v). These results showed the prospect of using P. pinnata leave extracts against P. humanus capitis in difficult situations of emergence of resistance to synthetic anti-lice agents.