• Proceedings of the KIPE Conference
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• 2012.11a
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• pp.231-232
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• 2012

본 논문에서는 회전자 인버터 내장형 동기 전동기에 고주파 신호 주입 센서리스 알고리즘을 적용하는 방법을 제안한다. 고주파 신호주입 센서리스는 자기적인 돌극성을 활용하여 자속축을 찾기 때문에, 자기적인 돌극성이 뚜렷하지 않은 회전자 인버터 내장형 동기 전동기에서는 이를 적용할 수 없는 문제가 존재 한다. 이를 해결하기 위해 회전자 인버터를 이용하여 가상의 돌극성을 생성하고, 이 가상의 돌극성을 이용한 고주파 신호주입 센서리스 알고리즘을 제안한다. 제안된 방법은 실험을 통하여 검증되었으며, 추가적인 손실이나 하드웨어 없이 센서리스 운전이 가능함을 확인하였다.

• 프린팅코리아
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• v.11 no.11
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• pp.88-89
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• 2012

친환경 인쇄에 대한 관심이 잉크를 넘어 종이로 확대되고 있다. 돌종이 미네랄페이퍼를 공급하는 LM테크 인터내셔널의 한국총판인 유니에코(UniEco)는 키페스2012에서 나무를 전혀 사용하지 않고 돌로 만든 친환경종이인 미네랄페이퍼를 선보여 주목 받았다.

• Journal of Sericultural and Entomological Science
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• v.52 no.1
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• pp.16-24
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• 2014

Taraka hamada is known as the sole aphidophagous lycaenid butterfly in Korea. The species specifically preys upon Ceratovacuna japonica which lives in bamboo forests. During several years, the species has been received attention from the field of industrial insects in order to commercialize as a pet. However, an ecological character of the species have been unclear in Korea. We carried out a survey for basic ecology and distribution of the two species for 2010 to 2012. As the results, both species only cohabit at Pseudosasa japonica in our investigation. C. japonica is widely distributed from the host plant. Population density of T. hamada is synchronized with the density changes of C. japonica. Their densities are gradually decreased from the point to the investigation and significantly declined in mid-june. The maximum population density of both species shows at the basal part of a leaf. The last-larval instar of T. hamada may seem to be reaching at $4^{th}$ stage. The adults of T. hamada are killed within two minutes when they were exposed to the sun.

• Journal of Digital Convergence
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• v.10 no.11
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• pp.651-658
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• 2012

As Idol Star has increased, and it has become an all-round entertainer. Male Idol Star have received a great response from public, leading the entertainer. The Beauty images of Idol Star not only reflect ideals, but also are an example of image making. In special, I tried to explain that beauty image of male idol star who was casted "We get Married" was made not only reflect ideals, but also leading the social trends by entertainment industry. Most of male idol star was done natural make-up, but Lee Jun was done with smoky make-up. The hair-style demonstrated a glamorous feeling through an artificial looking style, dyed with various color(Tab. 3 & 5).

• Korean Journal of Environmental Biology
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• v.27 no.1
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• pp.1-5
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• 2009

This study was to investigate the habitat conditions and growth of right eye flounder (Kareius bicoloratus) in the Saemangeum Reseorvoir during 1995$\sim$2007. The planktonic larvae of K. bicoloratus appeared in early March, and then the juveniles started the benthic life in the tide-pools inside the reservoir, being 1.5$\sim$2.5cm in total length in early April and 6.0$\sim$7.2cm in mid-July. This species was not collected in the tide-pools after July, indicating that the juveniles began to move to outer seas for growing. When the tide barrier of Saemangeum was constructed, the juveniles of K. bicoloratus decreased as the tidal pools were covered continuously, then they could not be collected after 2005. Thus, it is concluded that the environmental change has taken important influence on distribution and spawning of K. bicoloratus since the reservoir was constructed.

• Journal of the Korean Society of Food Science and Nutrition
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• v.40 no.10
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• pp.1411-1416
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• 2011

In this study, we investigated the anti-obesity activity of Aceriphyllum rossii ethanol extract on rat fed a high fat diet. Male SD rats were divided into four groups. Group 1 was the control. Group 2 was fed a high-fat diet. Group 3 was the positive control, fed a high-fat diet supplemented with Garcinia Cambogia extracts. Group 4 was fed a high fat diet supplemented with ethanol extracts of Aceriphyllum rossii (EEAR). Precisely 166 mg/kg of powdered Garcinia Cambogia extracts was used for Group 3. Also, 250 mg/kg of EEAR was used for Group 4. The Body weight increased Group 2, but decreased Group 4. The serum total cholesterol in Group 2 increased by 15.26% when compared to Group 1, but only increased 5.29% in Group 3 and 4.29% in Group 4. The liver and mesenteric adipose tissue weights of Group 2 increased compared to Group 1, whereas they decreased in Group 3 and Group 4. As a result of measuring the concentration of triglycerides in extracted livers, Group 2 showed a significant increase compared to the Group 1, and Groups 3 and 4 showed significant decrease compared Group 2. These results suggest that Aceriphyllum rossii ethanol extracts may be useful as an anti-obesity agent.

• Journal of Life Science
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• v.31 no.6
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• pp.559-567
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• 2021

This study compared the nutritional characteristics and antioxidant effects of sea mustards sourced from five different areas (Barammaegi, Gultongmeori, Chanmulgae, Johongtaek, and Goraedeung) in Taejongdae, Youngdo, Busan. The contents of total flavonoids and phenols and fatty acid composition were measured. To evaluate their antioxidant effects, 1,1-diphenyl-2-picrylhydrazyl (DPPH) and 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) assays were used. Acetone/methylene chloride (A+M) extracts from all the sea mustards contained higher amounts of total flavonoids and phenols than methanol (MeOH) extracts. Among the sea mustards obtained from the different areas, the total flavonoid and total phenolic content of the A+M extract of the sea mustard from Gultongmeori was 1.44±0.04 mg/g and 1.72±0.06 mg/g, respectively. In terms of the fatty acid composition, the Gultongmeori sea mustard had higher percentages of total n-6, total n-3, eicosapentaenoic acid (EPA, 20:5n-3), and docosahexaenoic acid (DHA, 22:6n-3) than the sea mustards from the other areas. The A+M extract of the sea mustard from Gultongmeori was more effective in terms of scavenging free radicals as compared with that of the other sea mustards, as assessed by the DPPH and ABTS assays (p<0.05). In a 120-minute reactive oxygen species (ROS) production assay, all the extracts tested decreased cellular ROS production induced by H₂O₂ compared to that produced by exposure to an extract-free control (p<0.05). The extracts from Barammaegi and Gultongmeori had a greater inhibitory effect on cellular ROS production. These results indicated that the antioxidant effects of sea mustards might be associated with a higher amount of flavonoids and phenols. This study suggests that food-processed products from sea mustard can be developed as functional foods for promoting health in the local population.

• Journal of Korean Society of Forest Science
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• v.101 no.1
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• pp.130-137
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• 2012

This study has conducted to develop new gabion wall systems with vegetation base materials for stream bank stability and rapid rehabilitation. Vegetation base materials are primarily compounded with fine soil, organic composts and peat moss as plant fibers, a water retainer and a soil improver. Normally gabion wall systems resist the lateral earth pressures or stream power by their own weight. Therefore, fill material must have suitable weight, compressive strength and durability to resist the loading, as well as the effects of water and weathering. In this project, 100 to 200-mm clean, hard stones are basically specified, and about 50-mm rubbles are also used. Test application of new gabion wall system carried out in the stream bank of a small stream in the Gwangreung experimental forest, belonging to Korea Forest Research Institute (KFRI) in December 16th, 2006. As a result of the analysis of hydraulic stability of new gabion wall system, gabion wall system has highest threshold shear stress when the gabion wall covered by vegetation. New gabion wall system is highly resistant to sliding and overturning because safety coefficients exceed 1.5. As a result of term of slope stability analysis of new gabion wall system by Bishop and Fellenius methods, stability of stream bank was highly increased after the construction of gabion wall. Therefore, new gabion wall system is effective to stabilize unstable stream bank.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.19 no.5
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• pp.211-217
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• 2019

The three major inventions of Jeju include the field wall of Kim Koo Pan Gwan in 1234, Jeongnang in the custom of grazing the people of Jeju, and Olleh in the tomb of Munbang-gui in 1406. Field wall, Oedam from the stone and the stone of numerical play, made Koendang, a friendship society. Even with a typhoon that is more than 30m/s, the Koendang which is about 1.5m high, will not collapse. Similarly, the main family networks of Jeju society do not collapse under any difficulties situation. When building a field wall, two stones, which are under the ground, are placed side by side, and the upper left stone is placed on top and the upper right stone is attached regularly. One stone or two stone is attached from the bottom to the top, and when a stone is small or large, a flat field is formed in one space. The Family networks is close to the grandfather, grandmother, father, mother, and me, and the distant kin represents a horizontal relationship. The field wall is a vertical relationship that builds up from bottom to top of the vertical relation, while the Koendang is a horizontal relationship where blood is distributed to the grandson of his upper grandparents. This paper proves by a non-orthogonal symmetric weighted Hadamard matrix of whether the stone in the middle of a field wall has large stones (small).

• 방재와보험
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• s.109
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• pp.42-45
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• 2005

한옥은 자연의 산물이다. 이 땅에 사람이 살아가기 시작하면서 자연은 집의 가장 좋은 주제이자 재료가 되어 있다. 일반적으로 예전에는 집을 짓는데 있어 첫 번째의 원칙은 주변에서 구할 수 있는 것들의 적극적인 활용이다. 멀리서 이동해 올 필요가 없으니 효율적인 답이 되는 것이고, 익히 보아오고 접해 왔기에 그를 다루는 방법 또한 두터운 노하우가 쌓여 있기 때문이다. 그래서 돌이 많은 곳에서는 돌로, 흙이 많은곳에서는 흙으로, 나무가 많은 곳에서는 나무가 집구성의 주인공 역할을 한다.