• Korean journal of food and cookery science
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• v.30 no.5
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• pp.564-572
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• 2014

This study was conducted to analyze the contents in the dietary fiber and amino acid compositions of 23 vegetables and 6 fruits and to identify the current contents. We generated data on the contents of total, insoluble and soluble dietary fiber (TDF, IDF and SDF), respectively. The TDF and IDF contents were lowest (0.56 g/100 g and 0.44 g/100 g) in wild garlic and highest (5.87 g/100 g and 5.66 g/100 g) in perilla leaves. A total of 18 kinds of amino acids were found in most samples. Essential and non-essential amino acid contents ranged from 53.16-2107.54 mg/100 g and 191.66-2892.28 mg/100 g, respectively. The highest essential and non-essential amino acid content was hot pepper leaves followed by perilla leaves and aralia. They had higher contents of both TDF and amino acids. The results of the study can serve as a fundamental source of information in DF and amino acids for diet planning.

• Elastomers and Composites
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• v.51 no.1
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• pp.17-23
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• 2016

In this study, the reclaimed polypropylene (RPP) and waste ground rubber tire (WGRT) were used to simulate the thermoplastic vulcanizate (TPV) for cost reduction and resources recycling. Also, we examined the effects of dicumyl peroxide (DCP) and 2,5-dimethyl-2,5-di-(tert-butylperoxy)-hexane (DTBPH) as peroxide type cross-linking agents to enhance the properties of TPV's. The components of RPP and WGRT were fixed at 30 and 70 wt%, and DCP and DTBPH were added in the concentrations from 0.5 to 1.5 phr, respectively. RPP/WGRT composites with different contents of DCP and DTBPH were prepared by a modular intermeshing co-rotating twin screw extruder. The Young's modulus of composites were decreased with increasing peroxides contents. On the other hand, tensile strength, elongation at break, and impact strength of the composites were increased with peroxide contents. We also confirmed that interfacial adhesion between RPP and WGRT was considerably improved by adding the peroxides. Taken together, DTBPH added RPP/WGRT composites exhibited better mechanical properties rather than those of DCP added composites.

• Journal of Magnetics
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• v.2 no.3
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• pp.76-85
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• 1997

Magnetic and magnetostrictive properties of Tb-Fe and Tb-Fe-B thin films are systematically investigated over a wide composition range from 40.2 to 68.1 at. % Tb. The films were fabricated by rf magnetron sputtering using a composite target which consists of an Fe plate and Tb chips. The microstructure, examined by X-ray diffraction, mainly consists of an amorphous phase and, at high Tb contents, a pure Tb phase also exists. A progressive change in the direction of anisotropy from the perpendicular to in-plane occurs as the Tb content increases and the boundary at which the anisotropy change occurs shifts significantly towards to higher Tb contents with the addition of B. The saturation magnetization exhibits maxima at the Tb contents of 42 and 48 at. % for Tb-Fe and Tb-Fe-B thin films, respectively, and it is decreased by the addition of B. The coercive force, measured in the easy direction, decreases monotonically with the Tb content. Excellent magnetostrictive characteristics, particularly at low magnetic fields, are achieved in both Tb-Fe and Tb-Fe-B thin films; for example, a magnetostriction of 138 ppm is obtained in a Tb-Fe-B thin film at a magnetic field as low as 30 Oe. The excellent magnetostrictive properties of the present thin films are supported by the equally excellent magnetic softness, the coercivity below 10 Oe and a typical squared-loop shape with the saturation field as low as 1 kOe. Due to the excellent low field magnetostrictive characteristics, the present Tb-Fe based thin films are thought to be suitable for Si based microdevices.

• Journal of the Korean Society for Heat Treatment
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• v.29 no.5
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• pp.209-215
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• 2016

In this study, the effect of Nb contents and processing parameters on dynamic recrystallization behaviour of 0.15C-0.2Si-0.5Mn low-carbon steels was investigated. Three kinds of steel specimens with different Nb contents were fabricated and then high-temperature compressive deformation test was conducted by varying reheating temperature (RT), deformation temperature (DT), and strain rate (SR). The Nb2 and Nb4 specimens containing Nb had smaller prior austenite grain size than the Nb0 specimens, presumably due to pinning effect by the formation of carbides and carbonitrides precipitates at austenite grain boundaries. The high-temperature compressive deformation test results showed that dynamic recrystallization behavior was suppressed in the specimens containing Nb as the strain rate increased and deformation temperature decreased because of pinning effect by precipitates, grain boundary dragging effects by solute atoms, although the compressive stress increased with increasing strain rate and decreasing deformation temperature.

• Applied Biological Chemistry
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• v.45 no.3
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• pp.134-137
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• 2002

Approximate composition and physicochemical properties of 2 cultivars of plum (P. salicina), Humoosa and Daeseok, were examined. The contents of crude fat and N-free extract were different between 2 cultivars. Total mineral contents of Humoosa and Daeseok were 30.00 and 17.99% respectively, and S, K and Mg were major minerals in both cultivars. Humoosa has higher contents of fructose whereas Daeseok has higher contents of sucrose. Major organic acid in flesh was malic acid. While citric acid was major organic acid in the peel of Humoosa, malic acid was major in the peel of Daeseok. Glutamic acid, alanine and ${\gamma}-aminoisobutyric$ acid were major free amino acid in both cultivars and their total contents were about the same.

• Proceedings of the Korea Contents Association Conference
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• 2007.11a
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• pp.355-359
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• 2007

For the decision making of governmental policy about science and technology, domain expert is needed. To choose the expert, the fairness, diversity and speciality is very important. In this research, systematical approach is proposed in the establishment and management of expert database, and recommendation of member of committee for specific field. Additionally, this approach includes the development of tools for the management of governmental committee and the constituents.

• Proceedings of the Korean Society of Crop Science Conference
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• 2005.10b
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• pp.230-231
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• 2005

• Proceedings of the Korea Contents Association Conference
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• 2005.11a
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• pp.60-65
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• 2005

Research on RSS(Really Simple Syndication) based application and services are being deployed both domestically and internationally. The RSS service in the area of science and technology should be flexible to the various sources of information as well as the various platform and environments that they are being serviced. It also requires a standardized system to meet the above needs. We have analyzed the use of RSS services overseas as well as domestic services to suggest the implementation of standard system for the syndication of science and technology information based on RSS.

• Food Science and Biotechnology
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• v.18 no.2
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• pp.390-395
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• 2009

Red radish seeds were irradiated at doses up to 8 kGy using electron beam (e-beam) and gamma ray ($\gamma$-ray). The seed viability and functional properties (carotenoid, chlorophyll, ascorbic acid, and total phenol) of sprouts grown from these irradiated seeds were evaluated. High germination percentage ($\geq$97%) was observed in seeds irradiated at $\leq$5 kGy, but the yield ratio and sprout length significantly decreased with increased irradiation dose. Irradiation at $\geq$6 kGy resulted in curling of the sprout roots. Sprouting enhanced the functional properties of red radish seeds as indicated by the increased carotenoid, chlorophyll, ascorbic acid, and total phenol contents during germination. However, radiation treatment hampered the growth of seeds resulting in underdeveloped sprouts with decreased carotenoid, chlorophyll, ascorbic acid, and total phenol contents. In general, e-beam and $\gamma$-ray irradiation of red radish seeds showed similar effects on the seed viability and functional properties of sprouts. Postharvest storage reduced the functional quality of sprouts.

• Proceedings of the Korea Contents Association Conference
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• 2011.05a
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• pp.27-28
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• 2011

최근 국내외에서 클라우드 컴퓨팅 기술을 활용한 과학기술 응용 연구가 점차 이루어지고 있다. 본 연구에서는 대규모 데이터 처리를 필요로 하는 과학기술 응용을 지원하기 위한 스토리지 구축 및 운영 기술을 다루고자 한다. 본 연구를 위하여 많은 과학기술 분야 중 대규모 데이터의 처리를 필요로 하는 천문우주 분야 응용을 대상으로 선정하였으며, 물리적인 컴퓨팅 자원의 스토리지 구축 및 운영 방안뿐만 아니라, 응용 연구자가 직접 접근 및 사용하는 가상 클러스터 환경의 스토리지를 대규모 데이터 처리에 최적화 시킬 수 있는 방안을 제시하고자 한다.