• 한국의류산업학회지
• /
• 제16권2호
• /
• pp.245-254
• /
• 2014

The purpose of this study was to describe 20's to 30's men's fashion lifestyle and develop clusters in grooming related variables. We also tried to interpret profile of clusters, and determine the difference between different level of grooming clusters in appearance care behaviors, and clothing behaviors such as clothing selection, preference of clothing image and design in men's wear. Data was obtained using the survey methods by convenience sampling. Frequency analysis, factor analysis, cluster analysis, chi-square test, and t-test were used for analysis using SPSS 18.0. The result of factor analysis of men's lifestyle show that 5 factors are extracted. Two different clusters were formed after the K-means cluster analysis. We realized that the level of grooming activity is significantly associated with the young men's major expenditure item, and beauty/care items, and the reason for exercise. The level of grooming was strongly associated with clothing selection behaviors. In addition, there is a significant difference in preferred image between two different grooming groups. In the feminine image, HG group favored more than LG group. The preferred design was associated with the degree of grooming as well. Unique and stylish top and bottom styles such as cargo, hiphop, and boots cut were favored more by HG group than LG group. We suggest that we can do market segmentation by the degree of the grooming activity, considering the current men's taste and trend to extend market share.

• 한국정보과학회논문지:컴퓨팅의 실제 및 레터
• /
• 제6권2호
• /
• pp.254-264
• /
• 2000

과금 관리를 포함한 대부분의 망관리 기술들은 단일 서비스망을 중심으로 연구 개발되어 왔으며, 국내외적으로 ATM 기반의 이종 서비스망환경에서의 과금 관리는 현재 많은 연구 기관들에 의해 개발 중에 있다. 본 논문에서는 광대역 통신망의 복수 서비스를 통합?지원하는 액세스망에서의 실시간 과금 관리 시스템을 설계하고 구현한다. 과금 관리 시스템은 ATM 크로스커넥팅 기능을 수행하는 액세스노드상에서 과금 정보를 측정하고 기록하는 에이전트와 워크스테이션 상에서 과금 정보를 수집하고 처리하는 매니져 구조로 설계.구현되었다. 에이전트의 관리정보는 OSI 시스템 관리 서비스와 CMIP 프로토콜을 사용하는 TMN 표준 Q3 인터페이스를 통해 매니져로 전달된다. 이후 과금정보는 매니져에 의해 과금 레코드로 변환되어 해당 서비스 제공자에게 제공되고 웹을 통해 실시간으로 열람할 수 있다.

• 대한지리학회지
• /
• 제50권2호
• /
• pp.239-254
• /
• 2015

본 연구의 목적은 학생들의 일상적 소비의 맥락 속에서 인간-비인간, 장소에 대한 이해의 관계적 전환에 기반하여 윤리적 지리교육의 가능성을 모색해보는 데에 있다. 이를 위해 먼저 학생들이 소비하는 상품 네트워크가 탈 국지화되면서 타자에 대한 책임과 배려의 윤리가 축소되는 상황에 대하여 살펴보았다. 이어서 학생들이 소비와 윤리의 문제를 책임과 배려의 관계적 윤리라는 관점을 통하여 바라볼 수 있는 안목의 토대로서 장소와 인간-비인간의 관계적 이해라는 관점을 제시한다. 마지막으로 휴대폰 커넥션을 사례로 소비, 관계적 지리, 책임과 배려의 윤리의 관계를 살펴보았다. 윤리적 지리교육의 역할은 학생들이 자신들의 삶 속에서 부재하는 현존으로서 다양한 인간 및 비인간들과 연계감을 가지고 이들에 대하여 더 많은 책임과 배려를 제공할 수 있는 인식적, 실천적 능력을 가지도록 하는데 있다는 점을 주장한다.

• The Plant Pathology Journal
• /
• 제20권1호
• /
• pp.52-57
• /
• 2004

Sclerotinia sp. (isolate BWC98-105) causes stem blight and root rot in Leghum sp., and is presently being evaluated as a potential mycoherbicide for the control of Trifoliorium repens. Bioassays have shown that Sclerotinia sp. produces phytotoxic substance which is biologically active against T. repens. Two biologically active compounds, designated as compoundsI and II, were produced in vitro from the culture filtrate of BWC98-105 isolate Sclerotium sp. Compounds I and II were purified by means of liquid-liquid extraction and $C_{18}$ open column chromatography (300 ${\times}$ 30 mm, i.d). To determine the purity, the purified compounds were analyzed by RP-HPLC. The analytical RP-HPLC column was a TOSOH ODS-120T (150 ${\times}$ 4.6 mm i.d, Japan), of which the flow rate was set at 0.7 mL/min using the linear gradient solvent system initiated with 15 % methanol to 85 % methanol for 50 min with monitoring at 254 nm. Under these RP-HPLC conditions, compounds I and II eluted at 3.49 and 4.13 min, respectively. Compound II was found to be most potent and host specific. However, compound I had a unique antibiotic activity against phytopathogenic bacteria like bacterial leaf blight (Xanthomonas oryzae) on rice, where it played a less important role in producing toxicity on T. repens. No toxin activity was detected in the water fraction after partitioning with several organic solvents. However, toxin activity was detected in the ethyl acetate and butanol fractions. In the leaf bioassay using compound II, the disease first appeared within 4-5 h as water soaked rot, which subsequently developed into well-defined blight affecting the whole plant.

• 대한수의학회지
• /
• 제56권4호
• /
• pp.249-254
• /
• 2016

As the meat of black goats has become popular as a healthy food, domestic goat meat-related industries are steadily growing. However, previous studies are scarce of informations about the zoonotic disease originated from the black goat in Korea. In this study, we investigated Korean black goat's infectious diseases representing bovine tuberculosis, brucellosis, and Q fever. One hundred and eighty samples were collected from a local slaughter house located in Jeollanam-do. Three typical zoonotic diseases were separately examined by carrying out enzyme linked immunosorbent assay (ELISA) and polymerase chain reaction (PCR). Histopathological test was additionally performed in tuberculosis. In case of tuberculosis, results of the PCR and histopathological test were negative but the ELISA results were positive in eight samples. In case of brucellosis, one out of the total samples was shown to be positive in the ELISA and none in the PCR. In case of Q fever, there were forty one positive in the ELISA and twenty positive in the real-time PCR. Those results indicate that the Korean black goat could be a natural reservoir in the possible chain-infections among human, cows and goats. Thus, further study needs in order to improve productivity as well as to prevent the zoonosis spreading and circulation of other livestock with the black goat in this country.

• 생명과학회지
• /
• 제14권2호
• /
• pp.252-254
• /
• 2004

$\alpha$소단위체 56번 잔기가 치환된 돌연변이 (D56E/G/N) 트립토판 합성효소의 효소활성도는 매우 낮다. 이러한 돌연변이 효소에 $\alpha$와 $\beta$소단위체 특이 리간드를 처리하여 그 영향을 조사하였다. 양이온은 야생종과 잔기치환체에 다른 흡광도를 보여주었다. 반면, glycerophosphate는 모두 비슷한 양상의 흡광도를 보여주고 있다. glycerophosphate는 $\alpha$소단위체의 활성부위에 결합함으로 $\alpha$소단위체에 기질이 결합된 반응 단계에서는 56번 잔기가 $\alpha$와 $\beta$소단위체간의 이소조절에 관여하지 않고 있음을 시사한다. 따라서, 잔기 56번 치환 효소는 $\alpha$소단위체로부터 기질이 떨어진 이후에 일어나는 반응 단계에 결함이 있는 것으로 추정된다.

• 대한영양사협회학술지
• /
• 제16권3호
• /
• pp.239-254
• /
• 2010

This study investigated the use and understanding of food and nutrition labels in 498 female adolescents (middle school students: MS 248, high school students: HS 250) in Gyeonggi-do. Fifty percent of the MS and 47.2% of the HS read food labels, and the most common reasons for reading labels were to find a product's expiration date and price. The food label information considered most important by the subjects was the name of the manufacturing company and expiration date. Over 80% of the subjects read nutrition labels. The MS read nutrition labels to find nutrients and their amounts in foods, while the HS read labels mostly in an effort to control body weight. These subjects gave more attention to calories and fat, the nutrients related to body weight, than to other nutrients. The subjects were highly aware of the necessity and positive effects of nutrition labels, because they believed labels could make it easier for them to choose healthy foods. However, scores for understanding nutrition labels showed the subjects failed to understand label information accurately. Generally, the MS showed better dietary behaviors than HS. But the HS had significantly higher scores than MS for the item "know relative weight with height." Those that read food labels had significantly better BMIs, dietary behaviors, and awareness and understanding of nutrition labels. There were significant positive relationships among awareness & understanding of nutrition labels and subjects' dietary behaviors. The study findings can be utilized to better plan nutrition education programs aiming to improve use and awareness of food and nutrition labels among adolescents.

• 상하수도학회지
• /
• 제29권3호
• /
• pp.337-345
• /
• 2015

Two step rapid filter system as a pre-treatment for the injected water into aquifer storage and recovery (ASR) in Korea was developed to reduce physical blockage and secure the volume of the injected water. First, single rapid sand filters with three different media sizes (0.4~0.7, 0.7~1.0 and 1.0~1.4 mm) were tested. Only two sizes (0.4~0.7 and 0.7~1.0 mm) satisfied target turbidity, below 1.0 NTU. However, they showed the fast head loss. To prevent the fast head loss and secure the volume of the injected water, a rapid anthracite filter with roughing media size (2.0~3.4 mm) were installed before a single rapid sand filter. As results, both the target turbidity and reduction of head loss were achieved. It was determined that the media size for a rapid sand filter in two step rapid filter system (i.e. a rapid anthracite filter before a rapid sand filter) was 0.7~1.0 mm. In addition, the effects of coagulant doses on the removal of natural organic matter (NOM), which might cause a biological clogging, were preliminarily evaluated, and the values of $UV_{254}$, dissolved organic carbon (DOC) and SUVA were interpreted.

• 한국주조공학회지
• /
• 제20권4호
• /
• pp.254-259
• /
• 2000

Metal matrix composites(MMCs) reinforced with hard particles have many potential application in aerospace structures, auto parts, semiconductor package, heat resistant panels, wear resistant materials and so on. In this work, the effect of SiC partioel sizes(50 and 100 ${\mu}m$) and additional elements such as Si, Cu and Ti on the microstructure and the wear property of $Al-5Mg-X(Si,Cu,Ti)/SiC_p$ composites produced by pressureless infiltration method have been investigated using optical microscopy, scanning eletron microcopy(SEM) with EDS(energy dispersive spectrometry), hardness test, X-ray diffractometer(XRD) and wear test. In present study, the sound $Al-5Mg-X(Si,Cu,Ti)/SiC_p$(50 and 100 ${\mu}m$) composites were fabricated by pressureless infiltration method. The $Al-5Mg-0.3Si-O.1Cu-O.1Ti/SiC_p$ composite with $50 {\mu}m$ size of SiC particle has higher hardness and better wear property than any other composite with $100{\mu}m$ size of SiC particle produced by pressureless infiltration method. The hardness and wear property of $Al-5Mg/SiC_p$(50 and 100 ${\mu}m$) composites were enhanced by the addition of Si, Cu and Ti in Al-5%Mg matrix alloy.

• 한국환경과학회지
• /
• 제24권4호
• /
• pp.541-547
• /
• 2015

Formation of disinfection by-products (DBPs) including trihalomethans (THMs) and haloacetic acids (HAAs) from chlorination of six different species (Chlorella vulgaris, Scenedesmus sp., Anabaena cylindrical, Microcystis aeruginosa, Asterionella formosa and Aulacoseira sp.) of algal extracellular organic matter (EOM). The EOM characteristics evaluation of six algal species reaching at the stationary phase in the growth curve showed most of its SUVA254 showed below 1 and this means hydrophilic organic matter is much higher than hydrophobic organic matter. Chloroform formation potential (CFFP), dichloroacetic acid formation potential (DCAAFP) and trichloroacetic acid formation potential (TCAAFP) were mainly composed of THMFP and HAAFP in the EOM of various algal species. In the case of THMFP/DOC and HAAFP/DOC values, EOM of blue-green algae has appeared highest and EOM of green algae and diatom in order. THMFP/DOC was higher than HAAFP/DOC in EOM of blue-green algae. In comparison of formation potential by unit DOC composed of HAAFP in algal species EOM, DCAAFP/DOC was 1.5 times to 7.5 time higher than TCAAFP/DOC in the EOM of blue-green algae, while DCAAFP/DOC was found to be relatively high compared to TCAAFP/DOC in the EOM of green algae and diatom.