• Journal of the Korean Society of Food Science and Nutrition
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• v.45 no.4
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• pp.557-561
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• 2016

The study investigated the physicochemical and sensory properties of soup prepared with 0, 10, 20, and 30% Stachys sieboldii Miq root powder. Moisture and viscosity were reduced with increasing content of Stachys sieboldii Miq root powder. The pH decreased and acidity increased with increasing content of Stachys sieboldii Miq root powder. The L value decreased while a and b values increased with increasing Stachys sieboldii Miq root powder concentration. In the sensory evaluation, color intensity increased while viscosity and greasy taste decreased with increasing content of Stachys sieboldii Miq root powder. Soup with 20% Stachys sieboldii Miq root powder had acceptable sensory properties, such as appearance, flavor, taste, texture, and overall acceptability.

• Journal of Sericultural and Entomological Science
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• v.40 no.1
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• pp.43-51
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• 1998

Studies were carried out to investigate phenotypic expression, mortality and biochemical analysis of haemolymph proteins of nm-d, nm-f, nm-k and nmn bib-molting mutants of the silkworm, Bombyx mori. The non-molting mutants characters were expressed in the homozygote of each mutant genes. All strains of non-molting mutants were similar with each other in physiological characteristics, but the expression varied with each strains. The larvae of nm-d, nm-i and nmn died between day 5 and day 9 after hatching without the first molt. The nm-f and nm-k mutants died between day 5 and day 16 with a slight increase of body weight and, more than 90% of the mutants larvae died before the first molt and a few of them survived to the 2nd and the 3rd instar and died. The haemolymph protein components of nm-d, nm-i, and nmn were rapidly reduced, and on the other hand those of nm-f and nm-k consistently until they died. And there were no distinguishable difference in haemolymph components of non-molting mutants, as compared to those normals.

• Journal of Mushroom
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• v.3 no.2
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• pp.90-94
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• 2005

This study was carried out to investigate the biological activities of P. tenuipes formed on silkworm (Bombyx mori) variety. The mean content of total amino acid in the fruiting bodies of P. tenuipes was $1.03{\mu}mole/g$. The distribution rate of amino acid components decreased in the order of Arginine(12.2%) > Glycine(10.5%) > Proline(9.6) > Tyrosine(8.9%) > Serine > Leucine > Threonine. The most abundant amino acid in the fruiting bodies of the Baegokjam, Chilbojam and Hachojam infected with P. tenuipes was arginine, while Yangwonjam was Glycine. The most abundant fatty acid in P. tenuipes was Oleic acid on a dry weight basis. The unsaturated fatty acids such as Oleic acid, Linoleic acid and Linolenic acid accounted for more than 78% of the total fatty acids.

• Journal of Sericultural and Entomological Science
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• v.33 no.2
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• pp.72-74
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• 1991

The recessive lethal mutation 'non-molting of Nho' (symbol, ㎚n) was founded on one preservation stocks. All dwarf larvae continued to eat a few mulberry leaves and very slightly increasing body-size over a 7 days, and then died without entering into molt. Linkage experiments showed that ㎚n was linked with Knob(K) on the 11th linkage group. Precise localization of the gene was performed by mating with ㎚ gene. This mutant was confirmed to be allelic with the ㎚ gene located on the same chromosome.

• ICROS
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• v.17 no.2
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• pp.36-46
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• 2011

자율무인잠수정(Autonomous Underwater Vehicle, AUV)은 미국을 중심으로 1980년대부터 다양한 수중관련 기술의 발전과, 민군의 사용분야가 증가되면서 급속한 발전의 진전을 보았다. 특히, 과학기술의 발전과 군의 전투개념 변화로 요구되는 무기체계도 급속히 변화되면서 자율무인잠수정이 핵심무기체계로 부상하게 되었다. 군에서 효율적인 전장 관리와 사회의 인명 중시 경향은 무기체계를 유인시스템으로 전환시키고 있다. 자율무인잠수정은 심해저 자원탐사, 해양조사 등 민수분야뿐만 아니라 해군의 정보전, 기뢰전, 그리고 대잠전과 같은 성분 작전에서 핵심적 역할을 수행하게 되었다. 본 기고에서 1994년부터 자율무인잠수정 종합발전 계획을 수립하여 개발하고 있는 미 해군 운용개념을 분석하고 분석된 결과를 기초로 하여 미래 우리 해군에서 자율무인잠수정의 개발 및 운용을 위하여 필요한 핵심 기술을 자율제어, 센서 및 신호처리, 진수 및 hgl수. 수중항법, 수중통신, 그리고 에너지 등으로 구분하고 각각에 대하여 기술발전 동향을 고찰하고 기술개발을 제안하였다.

• Proceedings of the Korea Water Resources Association Conference
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• 2018.05a
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• pp.380-380
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• 2018

전 세계적으로 기후변화로 인한 풍수해 피해가 증가하고 있으며 그로 인한 여러 가지 대책이 추진되고 있는 실정이다. 최근 우리나라는 10년간 매년 풍수해로 인해 발생하는 피해액은 약 3천 5백억 원에 해당될 만큼 많은 피해가 발생되고 있기 때문에(행정안전부, 2016), 정확한 홍수취약성을 산정한 후 효율적인 치수대책을 마련할 필요가 있다. 수자원장기종합계획(2001)에서 제시한 홍수피해잠재능(Potential Flood Damage, PFD)은 위험성과 잠재성으로 구성되어 있으며, 대상 지역의 홍수에 대한 취약정도를 나타내는 지수이다. 하지만, 기존의 홍수피해잠재능 산정 방법은 일부 지역에서 발생한 홍수 피해를 평균적인 측면에서 산정하였기 때문에 그 타당성에 문제가 제기되고 있다. 이를 위해, 본 연구에서는 한강의 일부 유역을 대상으로 수자원 장기종합계획에서 제시했던 방법론과 실제 홍수위험지역을 반영한 홍수피해잠재능을 산정한 후 비교 및 고찰하였다.

• Journal of Sericultural and Entomological Science
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• v.28 no.2
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• pp.48-51
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• 1986

Resistance to the flacherie virus(FV) and the densonucleosis virus(DNV) of 10 Japanese lines and 10 Chinese lines used for hybrids was tested and the results obtained are as follows ; 1. Hansang #1 showed the highest resistance to the FV among the tested Japanese lines whereas Mudeung was of lowest resistance. In Chinese lines tested on the resistance to the FV, Jam118 was the highest while Jam 116 was the lowest. 2. In Japanese lines tested on the resistance to the DNV, it was shown that Jam 117, Gyeongchy, Mudeung, Hansaeng #1 and Hansaeng #3 were of the complete resistance but Jam 115 showed the lowest resistance. On the other hand, all the Chinese lines tested showed the complete resistance to the DNV.

• Journal of Korea Water Resources Association
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• v.40 no.12
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• pp.969-983
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• 2007

This study developed a ten-step procedure of integrated watershed management (IWM) for sustainability to rehabilitate the distorted hydrologic cycle and identified spatial hazard ranking(step 2). Spatial hazard indices, Potential flood damage (PFD), potential streamflow depletion (PSD), potential water quality deterioration (PWQD), and watershed evaluation index (WEI) were developed using multi-criteria decision making (MCDM) techniques and sustainability evaluation concept(pressure-state-response model). The used MCDM techniques are composite programming, compromise programing, Regime method, and EVAMIX approach which are classified by data availability and objectives (prefeasibility and feasibility).

• Journal of Sericultural and Entomological Science
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• v.25 no.2
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• pp.1-31
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• 1984

Flacherie, as one of the most prevalent silkworm diseases, causes severe economic damage to sericultural industry and its pathogens have been proved to be flacherie virus (FV) and densonucleosis virus (DNV). Multiplications of the viruses in the larvae of the silkworm, Bombyx mori, were studied by the sucrose density gradient centrifugation and electron microscopy. The quantitative and qualitative changes of nucleic acids and proteins were investigated from the midgut and hemolymph in the silkworm larvae infected separately with FV and DNV. The histopathological changes of epithelial cells of infected midgut also were examined by an electron microscope. 1. Purified fractions of FV or DNV in a sucrose density gradient centrifugation yielded one homogenous and sharp peak without a shoulder, suggesting no heterogenous materials in the preparation. Electron microscopy also revealed that FV and DNV were spherical particles, 27nm and 21nm in diameter, respectively. 2. Silkworm larvae showed a decrease in body weight on the 6th day and in midgut weight on the 3rd day after inoculation with FV or DNV. 3. DNA content was higher in the midgut when infected with FV or DNV, but the hemolymph of the infected larvae showed no difference during first 6 days after inoculation, after which DNA concentration declined rapidly. 4. RNA synthesis of silkworm larvae infected separately with FV and DNV was stimulated in the midgut, but RNA content was reduced in the hemolymph at the early stage of virus multiplication. At the late stage of virus multiplication, however, it was extremely reduced in both midgut and hemolymph. 5. The concentration of protein in the midgut and hemolymph of silkworm larvae infected separately with FV and DNV showed no difference from that of the healthy larvae at the early stage of virus multiplication, but it was significantly reduced at the late stage of virus multiplication. 6. There was no difference in the electrophoretic patterns of RNAs extracted from the midgut of healthy or virus-infected larvae. 7. The electrophoresis of proteins extracted from the midgut infected with FV or DNV, when carried out on the 1st and 5th day after virus inoculation, showed no difference from that of the healthy larvae. But, there was an additional band with medium motility in the proteins on the 8th day after virus inoculation, while a band with low mobility shown in the proteins of healthy larvae disappeared in the infected larvae. However, a band with high mobility in the healthy larvae was separated into two fractions in the infected larvae. 8. The electrophoretic pattern of hemolymph proteins of the silkworm larvae infected separately with FV and DNV was similar to that of the healthy larvae, but the concentration of hemolymph proteins in the infected larvae was lower than that of the healthy larvae at the late stage. 9. Two types of inclusion bodies were shown by the double staining of pyronin-methyl green in the columnar cell of the midgut on the 8th day after FV inoculation. 10. Electron microscopy of the infected midgut revealed that the 'cytoplasmic wall' of the goblet cell thickened on the 5th day after FV inoculation and several types of the cytopathogenic structures, such as virus$.$specific vesicles, virus particles, linear structures, tubular structures, and high electron-dense matrices were observed in the cytoplasm of the goblet cell. The virus particles were also observed in the microvilli and the structures similar to spherical virus particles were observed around the virus-specific vesicles, suggesting the virus assembly in the cytoplasm. 11. Fluorescence micrograph of the infected midgut stained with acridine orange showed that the nucleus, the site of DNV multiplication in the columnar cell, enlarged on the 5th day after virus inoculation. 12. Electron microscopic examination of DNV infected midgut revealed that the nucleolus of the columnar cell was broken into granules and those granules dispersed into apical region of the nucleus on the 5th day after virus inoculation. On the 8th day after inoculation, it was also observed that the nucleus of the columnar cell was full with the high electron-dense virogenic stroma which were similar to virus particles. These facts suggest that the virogenic stroma were the sites of virus assembly in the process of DNV multiplication.

• Journal of the Korean Society of Food Science and Nutrition
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• v.46 no.1
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• pp.68-76
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• 2017

Antioxidative capacities of Stachys sieboldii MIQ and 6-year-old ginseng powder were assessed after extraction with 80% ethanol, and their addition effects on quality characteristics of cookies were determined. Stachys sieboldii MIQ showed 3.12-fold higher total phenol content (TPC) and higher antioxidative capacities than ginseng based on higher values of 2,2-diphenyl-1-picrylhydrazyl radical scavenging capacity, ferric reducing antioxidant capacity, and Trolox equivalent antioxidant capacity (P<0.05). The 80% ethanol extract was then fractionated with $H_2O$ (Fr. I), 30% (II), 50% (III), 70% (IV), and 100% ethanol (V). Fractions of Stachys sieboldii MIQ extract showed 2.2-fold (Fr. I)~6.1-fold (III) higher TPC and higher antioxidative capacities than ginseng extract fractions. TPC was in the order of fractions III> II> I> IV> V for Stachys sieboldii MIQ extract while in the order of fractions I~III> IV~V for ginseng extract, assuming that Stachys sieboldii MIQ contained more phenolic compounds with higher polarity than ginseng. Addition of 5% and 10% Stachys sieboldii MIQ and ginseng powder increased spread ratio in cookies compared to 100% wheat flour, and 10% addition of Stachys sieboldii MIQ resulted in the darkest and most reddish cookies. In the sensory evaluation, cookies with 5% and 10% Stachys sieboldii MIQ received higher scores for taste preference and higher overall acceptability than ginseng or control cookies. Therefore, powder of Stachys sieboldii MIQ could impart more favorable sensory characteristics as well as higher antioxidative capacity than ginseng in bakery products.