• Proceedings of the Korean Society for Emotion and Sensibility Conference
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• 2003.05a
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• pp.47-50
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• 2003

지구 온난화 현상에 따른 기온 상승과 환경오염으로 인하여 생태계의 예상치 못한 변화는 여름철은 물로 겨울철에도 모기의 발생과 전염병이 증가하고 있다. 이러한 문제를 해결하기 위해 다양한 해충박멸을 위한 제품들이 출시되고 있는데 환경 파괴 등 여러 문제점들이 대두되고 있어 환경오염을 방지하기 위한 해충 퇴치를 할 수 있는 제품개발이 필요하다. 본 연구는 환풍기를 이용해 해충의 습성(색 구분, 후각, 청각, 촉각)을 파악한 후 해충이 좋아하는 빛으로 유인하여 해충을 환기와 동시에 밖으로 배출해내는 환경 친화적인 제품에 관한 연구이다. 이론적 고찰을 통하여 해충이 좋아하는 요소를 파악한 수 가장 효과적으로 해충을 퇴치할 수 있는 환풍기의 구조, 풍량, 빛의 밝기 등의 유인요소를 실험을 통해 검증하여 이 결과를 이용하여 실제 디자인을 실행한다.

• Proceedings of the Korean Society for Emotion and Sensibility Conference
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• 2007.05a
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• pp.95-97
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• 2007

지구 온난화 현상에 따른 기온 상승과 환경오염으로 인하여 생태계의 예상치 못한 변화는 여름철은 물론 겨울철에도 모기의 발생과 전염병이 증가하고 있다. 이러한 문제를 해결하기 위해 다양한 해충박멸을 위한 제품들이 출시되고 있는데 환경 파괴 등 여러 문제점들이 대두되고 있어 환경오염을 방지하기 위한 해충퇴치를 할 수 있는 제품개발이 필요하다. 본 연구는 환풍기를 이용해 해충의 습성(색 구분,후각, 청각, 촉각)을 파악한 후 해충이 좋아하는 빛으로 유인하여 해충을 환기와 동시에 밖으로 배출해내는 환경 친화적인 제품에 관한 연구이다. 이론적 고찰을 통하여 해충이 좋아하는 요소를 파악한 후 가장 효과적으로 해충을 퇴치할 수 있는 환풍기의 구조, 풍량, 빛의 밝기 등의 유인요소를 실험을 통해 검증하여 이 결과를 이용하여 실제 디자인을 실행한다.

• Proceedings of the Korean Fiber Society Conference
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• 2003.10b
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• pp.191-192
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• 2003

해충방지를 위한 지금까지의 방법은 주로 해충기피제 또는 살충제 둥의 농약을 사용해 왔으나 이는 농약의 심한 맹독성으로 인하여 인체와 환경에 위험한 요소로 작용한다. 뿐만 아니라 장기간 농약을 사용함에 따라 토양을 오염시키거나 농약에 대한 해충의 내성을 오히려 강화시키는 결과를 빚어 왔다. 또 다른 제충방법으로, ferromone 또는 색테이프 등을 이용하여 해충을 물리치는 방법이 있으나 큰 효과를 보기는 어려웠다. (중략)

• Journal of Conservation Science
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• v.26 no.4
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• pp.429-436
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• 2010

Dyestuffs extracted from fifteen kinds of natural dyeing materials were researched on their antimicrobial performance against 3 kinds of bacteria and 2 kinds of fungi in order to develop conservation/storage materials of traditional and natural dyed papers. The three types of mordants were evaluated by using the same method and then mixed with the dyestuffs to research their antimicrobial performance. With those results, dyed paper was made by mixing mordants with 9 kinds of dyestuffs with excellent antimicrobial performance. Among the dyed papers, Cotinus coggygria, Coptis chinensis, Phellodendri amurense, Rhus javanica and Acer ginnala multiple mordant papers were found to have an antibacterial quality against fungi, while, in the insect repellent experiment using termites, Coptis chinensis and Phellodendri amurense dyed papers were found to have insect repellent qualities. Also, with regard to the research result about the affect of dyeing paper on other materials like metal, Coptis chinensis have relatively stable qualities. Also, the three types of dyeed paper by Cotinus coggygria, Coptis chinensis and Phellodendri amurense, were found to have a tendency to remove harmful gases. Not only can these dyed papers be used for making storage box for cultural properties to prevent various organic artifacts from bio-damaging, but they can also be utilized as functional finishing materials in various spaces.

• Journal of the Korean Wood Science and Technology
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• v.41 no.3
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• pp.234-246
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• 2013

It was found that test piece heated rapidly by 3 kW microwave for 5 minutes satisfies the targeted temperature and the percentage of moisture content, and the highest rate of weight increase is obtained in case of 120 minute immersion in the mixture of phosphates and heterocyclic compounds, from the result of such analysis as: kiln drying schedule, flame retardent by flammability test, insect resistance by termites, and permeability of combined penetrant for the wood after assigning multifunctional finish by immersing conifer structural frame, which is used for the frame work of wooden house and indoor/outdoor finishing in flame retardant and insect repellent materials mixture with the remaining heat of microwave. In addition, after a test of flame retardent treated item, it was identified that every mixture of phosphates corresponds with the standards of flame retardent, and upon investigation of moritality of 7 days after putting termites, it was showed that test piece immersed in the mixture of phosphates and heterocyclic compounds has the best characteristics, showing over 96% of high moritality. From the analysis of inward permeability of combined penetrant for the wood, it was decided that excellent performance in the flame retardent and insect resistance of the wood revealed due to full penetration of combined penetrant as it was found that combined penetrant penetrated through the whole inner cells of the wood.

• Korean journal of applied entomology
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• v.62 no.3
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• pp.193-205
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• 2023

Botanical insecticides derived from plant extracts exhibit repellent, antifeedant and enzyme-inhibiting activities against insect pests. Among such pests, phytophagous mites are major threats to horticultural crops. Botanical extracts derived from neem, chrysanthemum, and shrubby sophora are employed as field acaricides. These botanical extracts have low toxicities against natural enemies of the insect pests and, thus, are valuable in pest management. This review focuses on the potential for botanical extracts in the controls of mites, with comparisons of the spectrum of activity, the lethal dose and times and their mode of action. This information will enable better formulation of botanical extracts in integrated mite control.

• Environmental Analysis Health and Toxicology
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• v.7 no.1_2
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• pp.1-16
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• 1992

Biologically, MGK-264 (N-octyl bicycloheptene dicarboximide) acts as a synergists for insecticides mainly pyrethrins and pyrethroids. It's used extensively in combination with pyrethrin and piperonyl butoxide and also with personal insect repellent and cockroach repellents. But the toxic effect of MGK-264 in mamalians was a relatively little known therefore in this studies it was initiated to examine the toxic effect of MGK -264 in rats. For 5 weeks it administrated daily in each 250 mg and 500 mg of MGK-264 per kg of body weight in rats. 1) The body weight gain and the LYMPH (%) value in blood were observed a slight tendency to reduce in accordance with amount of dose and number treatment time. 2) The content of cytochrome P-450 and activity of NADPH-cytochrome c reductase were decreased in liver and those were observed some tendency in the kidney as liver but not significant. 3) The liver cholinesterase activity in the both 250 mg/kg and 500 mg/kg per kg of body weight with treated groups and the liver aniline hydroxylase in 500 mg/kg treated group were gradually decreased from 4 weeks after treated groups. In consequence it would sugested that the toxic effect of MGK-264 was low but in could offer hazard effect in liver and nervers system of rats if it was administrated move dose of MGK-264 and agumented in number of treated time.

• Journal of Korean Society of Forest Science
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• v.95 no.5
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• pp.524-531
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• 2006

Neem tree (Azadirachta indica), native to the Indian sub-continent, has been known since the ancient time for its medicinal and insect repellent properties. In recent years, Neem has attracted global attention due to its potential as a source of natural drugs and also environment-friendly pesticides. In the households. The distribution and traditional practice on Neem can be important to the agriculturist, ethno-pharmaceutical developers and to the rural development practitioners in Bangladesh. An exploratory survey on the distribution and traditional practice on Neem tree in the rural homesteads of Chittagong coastal plain, Bangladesh, was conducted over a period of three months from September 2002 to November 2002. It was found that maximum, 64% households used seedling as planting material having 40% maximum sources Within the major tree species present in the homesteads, Neem accounted for 12% among the total individuals. It was found that the availability of Neem trees was found maximum, 31%, in the homesteads of medium sized households. Maximum, 42% individuals of Neem were found within the DBH of 10.1 to 20 cm; and 37% within the 3.1 to 6 m height classes. Neem trees were found to be used maximum, 88% for furniture. The findings of the study will be of immense importance for the rural development practitioners and ethno pharmacological developers in Bangladesh.

• The Korean Journal of Pesticide Science
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• v.17 no.1
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• pp.33-40
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• 2013

Pyrifluquinazon is known to act as a feeding inhibitor in several insect species. In this study, we investigated the effect of pyrifluquinazon on the whiteflies, Trialeurodes vaporariorum and Bemisia tabaci. Pyrifluquinazon showed high insecticidal activity (> 90%) against adult T. vaporariorum and B. tabaci at 12.5 ppm to 50 ppm. However, there was no effect on eggs and nymphs of both species. Pyrifluquinazon showed low insecticidal activity in root and foliar uptake. Control efficacy of pyrifluquinazon was above 90% at 5 days after treatment. In order to investigate the behavioral response of the whiteflies initiated by application of pyrifluquinazon, we tested the contact toxicity and ingestion toxicity. After 1 h of contact, whitefly drop, wing convulsion, and paralysis were observed. Similar phenomenon of whitefly population was observed in test of ingestion toxicity after 3 h. In the choice test, pyrifluquinazon showed repellent activity against both species. These results suggest that pyrifluquinazon cause behavioral disorder rather than direct inhibition of feeding.

• The Korean Journal of Mycology
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• v.41 no.2
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• pp.127-131
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• 2013

Traditional knowledge on wild mushrooms in Gyeongnam province near of Hallyeo-Haesang National Park was investigated. It was interviewed from 145 of people in age of 50th's to 90th's living in 53 villages. Total 19 mushrooms were used for food in which Ramaria botrytis was the most frequently used and followed Macrolepiota procera and Lentinula edodes. L. edodes was uniquely both medicinal and edible. Chlorophyllum neomastoidea, poisonous mushroom, was used as an insect repellent. The most various mushrooms were found in Irun, Geoje where 10 species of mushrooms were used and followed Jingyo, Hadong where 8 species were used. Among the interviewed people, the number of female was more than double compared to that of male and most of the interviewed people were 70th's and 80th's in age.