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The Content of β-glucan, Amino Acid of Fermented Herb Remnants by Lentinula edodes Mycelials
Sangwook Jeong,Hae-Shin Je,Seong-Woo Jin,Kyung-Je Kim,Young-Woo Koh,Seung-Bin Im,Yu-Seon Kim,Kyoungsun Seo 한국버섯학회 2017 버섯 Vol.21 No.2
Lentinula edodes, a member of the Pleurotaceae, is a blood pressure and cholesterol lowering effect. Recently, research the reduction of irritation and the enhancement of function have been cultivation of natural resources using mushroom mycelium. For the development of food fermented with L. edodes mycelium of natural medicinal herb remnants, determined to be 20%, and the product were used after lyophilization. In this study, we were analyzed the contents of β-glucan and amino acids of fermented herb remnants by L. edoeds mycelials. β -Glucan is a type of polysaccharide that has immune-enhancing and is known to inhibit cancer cells. The content of β-glucan and total amino acids of fermented herb remnants by L. edoeds mycelials were 35.13% and 8,697.36 mg%, respectively. The content of essential amino acid from fermented herb remnants by L. edoeds mycelials was 3,226.85 mg%. Collectively, our findings suggest that fermented herb remnants by L. edoeds mycelials extract could be used as an chemo-preventive material for consumers.
Hair Growth Effects of Ethanol Extract from Phellinus linteus
Seong Woo Jin,Hae Shin Je,Kyung Je Kim,Young Woo Koh,Seung Bin Im,Sangwook Jeong,Kyoungsun Seo 한국버섯학회 2017 버섯 Vol.21 No.2
Recently, hair loss regarded as a mere means of middle-aged men due to stress and environmental pollution. The market for hair loss in Korea is about four trillion won and it is growing continuously. It is mainly made by mixing natural extracts such as medicinal plant. The purpose of this study was to investigate the effects of 70% ethanol extracts of Phellinus linteus on the growth of fibroblasts, dermal papilla cells and lipid precursors, We want to try to make a materialization. The 70% ethanol extract of P. linteus on the cell viability of Human follicle dermal papilla cell (HFDPC), adipocyte (3T3-L1), fibroblast (CCD-986sk). The result the cell viability of HFDPC was increased according to the contents of ethanol extract of P. linteus. But the 70% ethanol extract of P. linteus showed weak inhibit activity in CCD-986sk cell growth. Also, the 70% ethanol extract of P. linteus did not inhibit the growth of 3T3-L1 cells. As a result of this study, in-vitro hair growth activity of herbal medicines for hair material development was not shown to be toxic to HFDPC and 3T3-L1 cell. As a result, the 70% ethanol extracts of P. linteus have potential to developing hair-related product. Acknowledgement : This research was supported by the Ministry of Trade, Industry & Energy(MOTIE), Korea Institute for Advancement of Technology(KIAT) through the Encouragement Program for The Industries of Economic Cooperation Region(R0005473)
A Simple Model for a DGS Microstrip Line with Stepped Impedance Slot-Lines
Sangwook Nam,Taek-Kyung Lee,Duk-Jae Woo 한국전자파학회JEES 2015 Journal of Electromagnetic Engineering and Science Vol.15 No.1
In this paper, a simple equivalent circuit model for a defected ground structure (DGS) microstrip line with stepped impedance slot-lines in the ground plane is presented. In addition, an analytic expression for the resonance frequency of the proposed structure is derived. In equivalent circuit modeling, the capacitance and the inductance of the resonance circuit are evaluated from the dimensions of the etched pattern in the ground plane. The resonance frequencies calculated from the proposed method are compared with those obtained with an electromagnetic (EM) simulation.
우윤환(Woo, Yoonhwan),강상욱(Kang, Sangwook) 한국산학기술학회 2016 한국산학기술학회논문지 Vol.17 No.2
3차원 솔리드모델링이 일반화되면서 이를 이용한 여러 응용이 가능해졌으며, 가장 대표적인 응용분야인 CAM과의 통합을 위한 다양한 연구가 진행되어왔다. 그 결과 설계된 부품의 CAD모델로부터 실제가공에 필요한 특징형상을 자동으로 인식하는 기술들이 개발되었다. 하지만 이러한 방법으로 인식된 특징형상들을 이용하여 절삭가공순서 등을 자동으로 생성하 기 위해서는 고려하여야 할 가공순서의 조합의 수가 너무 많아 이를 구현하기에는 현실적으로 문제가 발생한다. 이에 본 연구에서는 절삭가공에 관련된 규칙을 수집하고 이를 이용하여 특징형상 간 가공우선순위를 적용함으로써 고려하여할 조합 의 수를 대폭 감소시키고, 이들 조합으로부터 효율성을 최대화 하는 가공순서를 결정하는 방법을 제안하였다. 또한 항공기 부품에 대한 테스트를 통하여 20개의 특징형상으로부터 가공시간이 적은 가공순서를 자동으로 생성할 수 있었다. As 3D solid modeling prevails, a range of applications have become possible and intensive research on the integration of CAD/CAM has been conducted. As a consequence, methods to recognize the machining features from CAD models have been developed. On the other hand, generating a machining sequence using the machining features is still a problem due to a combinatorial problem with a large number of machining features. This paper proposes a new method that utilizes the precedence constraints through which the number of the combinations is reduced drastically. This method can automatically generate machining sequences requiring the lowest amount of machining time. An airplane part was used to test the usefulness of the proposed method.