• Title/Summary/Keyword: 분별

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Changes in Caseins during the Ripening of Camembert Cheese (Camembert Cheese 숙성 중 Casein의 변화에 관한 연구)

  • Lee, Jee-Whan;Lee, Soo-Won;Jeong, Jae-Hong;Yang, Ryung
    • Korean Journal of Food Science and Technology
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    • v.22 no.3
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    • pp.337-342
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    • 1990
  • The changes in cheese casein components and the resultant palatability of the cheese were studied. Camember cheese was made with P. caseicolum and mixed lactic cultures and ripened for 45days. The pH value increased rapidly during ripening Water soluble, pH 4.6-soluble and non protein nitrogenous compounds were all increased during ripening. The electrophoretic patterns of pH 4.6-insoluble casein showed that the caseins were seperated into 4 bands after 10 days,12 bands after 45 days of ripening, ${\alpha}_{s1}-casein$ was completely degraded after 17 days of ripening and a targe percentage of ${\beta}-casein$ was broken down after 45 days of ripening. On gel filtration, pH 4.6-soluble casein fragments ripened for 10 days,24 days and 31 days were fractionated into 3,4 and 5 fractions respectively The sensory evaluation of Camembert cheese showed that cheese ripened for 31 days had the best palatability.

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A Study on the Systematic Analysis of Lipids from Sweet Potatoes (고구마 지질성분(脂質成分)의 계통분석(系統分析))

  • Lee, Kwan-Young;Lee, Su-Rae
    • Korean Journal of Food Science and Technology
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    • v.4 no.4
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    • pp.309-316
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    • 1972
  • Sweet potato lipids were isolated into free and bound lipid fractions and subjected to fractionation and quantitation by thin layer chromatography, followed by flavor evaluation. The results are summarized as follows: 1) Sweet potato flour contained 1.75% total lipids on a dry weight basis, of which free and bound forms were 0.95% and 0.80%, respectively. 2) TLC indicated the presence of 13 components in free lipids and 9 components in bound lipids, of which phospholipids accounted for 34.5% and free fatty acids, 17.2%, as the major components. 3) Free fatty acids were separated and quantitatively determined by reversed TLC to give 30.1% palmitic acid, 16.7% linoleic acid, 15.8% oleic acid and 9.8% linolenic acid as the main components. 4) The flavor of various lipid fractions were evaluated and the disagreeable taste and odor of sweet potato flour was mainly found in the bound lipid fraction.

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Automatic Construction of Syntactic Relation in U-WIN (U-WIN의 구문관계 자동구축 방법)

  • Im, Jihui;Kim, Dongmyoung;Choe, Hoseop;Yoon, Hwa-Mook;Ock, Cheolyoung
    • Annual Conference on Human and Language Technology
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    • 2007.10a
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    • pp.84-90
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    • 2007
  • 일반적인 어휘망이 의미 관계에 의한 연결 구조를 중심으로 연구 개발된 것과는 달리, U-WIN은 의미관계를 비롯하여 개념 관계, 형태 관계, 구문 관계 등과 같이 의미 관계의 범위를 확장한 어휘 관계를 적용하여 구축하고 있다. 본 연구에서는 U-WIN의 어휘 관계 중의 하나인 구문관계를 자동으로 구축하는 방법을 제시하고자 한다. 먼저, 용언의 용례에서 문형정보를 기준으로 구문관계를 형성할 수 있는 후보명사를 추출하였으며, 추출한 후보명사는 용언의 세분화된 의미별로 정확하고 다양하게 추출할 수 있었다. 그러나 U-WIN은 다의어의 뜻풀이 하나하나를 개별적인 어휘로 구분하여 구축하였으므로, 어휘 간의 구문관계를 설정하기 위해서는 후보명사의 여러 의미 중에서 하나의 의미로 결정해야 한다. 그래서 본 연구에서는 용례 매칭 규칙, 구문패턴, 의미 유사도 등을 차례로 적용하여 후보명사의 의미를 분별하였으며, 또한 구문패턴의 빈도 정보를 이용하여 용례에 나타나지 않지만 구문관계를 형성할 수 있는 명사를 추출하여 구문관계를 확장하고자 하였다. 이러한 연구는 명사 중심의 어휘망이 용언과의 구문관계 구축을 통해 형태소 분석, 구문 분석, 의미 분석 등에 광범위하게 활용할 수 있는 어휘망의 기반을 다지는 작업이 될 수 있을 것이다.

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A Contrast-based Color Conversion Method for the Maintenance of Sense of the People with Color Vision Deficiency (색각 이상자들의 감각 유지를 위한 대비기반 색변환 방법)

  • An, Jihye;Park, Jinho
    • Journal of Digital Contents Society
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    • v.15 no.6
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    • pp.751-761
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    • 2014
  • Color deficient people do not have sufficient discernment for the colors with low saturation and brightness and at the same time express their negative emotions regarding emotion distortion. The purpose of recovering the distortion of the vision which is the basis for emotion is to increase positive emotions rather than negative ones that those with color vision deficiency feel when they experience digital culture contents. Contrast increases saturation and brightness by differing the direction of their conversion and by doing so, delivers emotion distortion such as dynamic vs. static and vivid vs. somber that the original images intend to convey to those with color vision deficiency by reducing such a contrast. In this respect, this study proposes a contrast-based color conversion method to convert saturation and brightness in the zone of color conversion and identifies if this method can reduce emotion distortion by using color conversion simulation and user test.

Petrological Characteristics of Alkali Rhyolite in the Cheonmunbong of the Mt. Baekdu (백두산 천문봉 일대 알칼리유문암의 암석학적 특징)

  • Kim, Jungsu;Yun, Sung-Hyo
    • The Journal of the Petrological Society of Korea
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    • v.26 no.3
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    • pp.183-200
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    • 2017
  • Alkali rhyolites in the Cheonmunbong of the Mt. Baekdu stratovolcano show porphyritic texture in the glassy or aphanic groundmass. Major phenocryst is alkali-feldspar, pyroxene, and amphibole, and small amount of microphenocryst is olivine, quartz, opaque mineral (ilmenite). The content of $Fe^{2+}/(Fe^{2+}+Mg^{2+})$ and alkali elements in the mafic minerals is high. Alkali feldspar is classified as sanidine or anorthclase, olivine as fayalite, and pyroxene as ferro-hedenbergite of ferro-augite area. Amphibole belongs to alkali amphibole group, but FeO and $Fe_2O_3$ were not separated, so it is required future studies. Nb(-) anomaly suggesting that slab-derived materials might have played a primary role in the genesis of the rhyolite magma, is not observed. It is noted that they originated in the within plate environment which is not related to subduction zone of the convergent plate boundary. The Mt. Baekdu alkaline rocks are classified into the comendite series. The alkali rhyolites of the summit at Mt. Baekdu shows the disequilibrium mineral assemblages, suggesting that it evolved from thrachytic magma with experience of magma mixing as well as fractional crystallization.

Determination of Chromium (Ⅵ) by Extraction Polarographic Method (추출폴라로그래프법에 의한 Cr (Ⅵ) 의 정량)

  • Park Doo Won;Bae Zun Ung
    • Journal of the Korean Chemical Society
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    • v.20 no.6
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    • pp.494-499
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    • 1976
  • The extraction-polarographic method applied to the determination of micro amount of chromium (Ⅵ). Chromium(Ⅵ) was extracted into methylisobuthylketone(MIBK) layer containing diethyldithiocarbamate(DDTC) as Cr(Ⅲ)-DDTC complex from acetate buffered aqueous, solution of pH 5.4 and the direct current polarogram for the extract was recorded after addition of sodium perchlorate as supporting electrolyte. The reduction current was diffusion controlled. And the half wave potential of this reduction wave was -0.81 volt vs. SCE. The diffusion current was proportional to the chromium concentraticn in aqueous solution in the range of 8∼160 ppm. And the chromium(Ⅵ) could be selectively determined in the presence of chromium(Ⅲ), since the chromium(Ⅲ) did not interfere up to twice the amount of chromium(Ⅵ). Many of other metals such as Mn(Ⅱ), Cu(Ⅲ), Zn(Ⅱ), Mg(Ⅱ), Ni(Ⅱ) and Ag(Ⅰ) were found to have no effect even when present in 1000 times the amount of chromium (Ⅵ).

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Geochemical Comparison Study on the Amphibolite in the Central Gyeonggi massif and Southeastern Okcheon metamorphic belt (중부 경기육괴와 동남부 옥천변성대의 각섬암에 대한 지화학적 비교 연구)

  • Na Ki Chang;Cheong Won Seok
    • The Journal of the Petrological Society of Korea
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    • v.13 no.4
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    • pp.201-213
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    • 2004
  • The Precambrian amphibolites in the central Gyeonggi massif, Yangsuri, Gyeonggido and southeastern Okcheon metamophic belt, Mungyeonggun, Gyeongsangbukdo, Korea, were studied on the geochemical characteristics of major and trace elements, and discussed petrogenetically and geotectonically. The characteristics of major elements of the amphibolites in these study areas are igeous origin such as tholeiitic-, subalkaline and alkaline basalt. Geotectonic distinction diagrams of trace elements such as Ti-Zr-Y and Zr-Nb-Y show basaltic igneous activity of island arc and mid ocean ridge environment at central Gyunggi massif, and within plate environment at southeastern Okcheon metamorphic belt. This result shows that genetic environments of study areas are different. Especially, origin of amphibolites in central Gyeonggi massif is similar with that of western Gyeonggi massif but different with the amphibolites of Chuncheon area. Genetic environment estimated of fractional crystallization of plagioclase has no particular effect on the origin of magma because value of LREE is higher than that of HREE and Eu anomaly definitely don't be exposed.

A Development of Automatic Quantification System of C&D Waste By Using 3D Objects. (3D Object를 활용한 건설폐기물의 자동화산정 시스템 개발)

  • Kim, Chang-Hak;Lee, Kyoung-Hee;Kim, Hyo-Jin
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • 2008.11a
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    • pp.388-391
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    • 2008
  • The Domestic housing Industry has to give consequence to the redevelopment and rebuilding of existing housings rather than the supply by developing a new building site, and now those tendencies are rapidly spreading out. Also, because apartment buildings occupies 50% over of the existing housing, its maintenance, repair, remodeling and reconstruction got to be necessary area for the slumming prevention of a residential area and the disaster prevention occurred by durability lowering of the building. It is increasing the interest for reusing and recycling of C&D waste. The government is doing efforts to diminish amount of C&D waste. But there couldn't find any efforts for developing Integrated system to manage and to estimate lightly generated amounts of C&D waste. So, this study presents a integrated computer system that can estimate easily quantity of C&D waste by using CAD draw and 3D Object.

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The Compensation Cost Analysis of Parcels for Land Alternation according to Occupation Ratio to Road (도로 편입률에 따른 토지이동 대상필지 보상비 분석)

  • Lee, Geun Sang;Park, Jong Ahn;Cho, Mi Su;Cho, Gi Sung
    • Journal of Korean Society for Geospatial Information Science
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    • v.22 no.1
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    • pp.13-22
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    • 2014
  • Recently, many civil appeals have been occurred in land management work because of discord between cadastral records and actual land use pattern. it is important to select parcels for land alternation exactly using land information and to evaluate compensation cost according to scenarios for advancing this problem. This study operated GIS spatial overlay based on serial cadastral maps and actual-width of the road and analyzed the number and area of the parcels for land alternation by the land classification and ownership applying fuzzy membership function according to occupation ratio to road. Also compensation cost was calculated according to scenarios using individual public land price information of the parcels for land alternation and was arranged by district as Eup and Myeon according to land classification and ownership. This study can efficiently support the work of the parcels for land alternation complying with the financial condition of local government, by supplying compensation cost according to scenarios to the parcels of land alternation by district as Eup and Myeon.

Nematodes Associated with Forest Trees in Korea III. A New Species of Xiphinemella Loos, 1950, and Four Unrecorded Species of Xiphinema Cobb, 1913 (한국에 있어서 임목에 기생하는 선충조사 III. Xiphinemella 속의 1신종 및 Xiphinema속의 4미기록종에 관하여)

  • 최영연;최영식;조명래
    • Korean journal of applied entomology
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    • v.31 no.4
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    • pp.416-426
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    • 1992
  • A new species of Xiphinemella is described and illustrated from soil around the roots of larch in Korea. Xiphinemella maiensis n. sp. has stylet length of 63-68$\mu\textrm{m}$, body length of 2.5-3.2 mm, and vulva position of 49-50%. It differs from X. esseri in more posteriorly positioned vulva (42-47% in X. esseri), shorter stylet (72-75$\mu\textrm{m}$ in X. esseri), and more anteriorly located guide ring (25-27 vs. 35-38$\mu\textrm{m}$). It also differs from X. ornata in having longer body (1.94-2.32 mm in X. ornata) and shorter stylet (82-92$\mu\textrm{m}$ in X. ornata). A key to species of the genus is provided. Xiphnema brevicolle, X. diffusum, X. chambersi, and X. insigne are firstly recorded from Korea.

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