• 한국동물위생학회지
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• 제40권4호
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• pp.245-251
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• 2017

Cold air or ice water are used to chill poultry carcasses after slaughter. In order to compare the microbial reduction effect of two different chilling systems in poultry carcasses, Pre-and post-chilled carcass samples were tested for contamination agents such as aerobic bacteria counts, E. coli counts and Salmonella spp. counts. Water chilling system showed higher reduction ratio of bacteria than air chilling system during the three seasons. Also, aging of slaughter facility was related with bacterial contamination of pre-chilld carcasses. And additional volatile basic nitrogen (VBN) test were conducted in poultry packing meats and it increased steadily during 15 days. VBN at 8~9 days were over 13 mg% with putrid smell. Poultry packing meats by water chilling system were fresher than air chilling system during early storage time. But those decayed faster after 9 days.

• 한국의류학회지
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• 제47권4호
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• pp.684-695
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• 2023

The Korean Volunteer Corps (KVC) and the Korean Independence Army (KIA) were Korea's main armed forces that led the independence movement against Japan. KVC members were partly merged into the KIA as the army's first branch in 1942. This study examines two different styles of KVC military uniforms: one that complies with the Uniforms Act of the Army of the Chinese Nationalist government and one that uses the same style without a field cap and a belt. The KIA's first branch had three different uniforms: one similar to that of the KVC, one belonging to the KIA and following the Army Uniform Protocol, and one influenced by the U.S. Army. The KVC and the KIA's first branches had insignias representing their identity. The former wore a distinctive insignia with the corps' name, whereas the latter had a cap badge with Korean national symbols under the Army Insignia Protocol. KVC members who may have initially worn their previous uniform in the early days of joining the KIA later adopted the KIA style. This study is expected to offer basic resources to reproduce KVC and KIA military uniforms and verify the authenticity of related artifacts.

• Structural Engineering and Mechanics
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• 제87권1호
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• pp.19-28
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• 2023

This paper describes the experimental investigation of steel pallet rack beam-to-column connec-tions. Total behavior of moment-rotation (M-φ) curve and the effect of particular characteristics on the behavior of connection were studied and the associated load strain relationship and corre-sponding failure modes are presented. In this respect, an estimation of SPRBCCs moment and rotation are highly recommended in early stages of design and construction. In this study, a new approach based on Support Vector Machines (SVMs) coupled with discrete wavelet transform (DWT) is designed and adapted to estimate SPRBCCs moment and rotation according to four input parameters (column thickness, depth of connector and load, beam depth,). Results of SVM-WAVELET model was compared with genetic programming (GP) and artificial neural networks (ANNs) models. Following the results, SVM-WAVELET algorithm is helpful in order to enhance the accuracy compared to GP and ANN. It was conclusively observed that application of SVM-WAVELET is especially promising as an alternative approach to estimate the SPRBCCs moment and rotation.

• 한국동물위생학회지
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• 제31권3호
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• pp.397-414
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• 2008

In order to evaluate conception rate of Hanwoo in northwestern region of Gyeongsang-nam-do, we investigated conception rate and reduction of reproductive disorder rate after artificial insemination (AI) in 1,000 heads of breeding cows, This study showed that 80.9% of cows were classified as fertility after 1st and 2nd AI. For a accurate pregnancy diagnosis with practicing ovariectomy and histeotomy, we comparatively investigated each of 80 slaughtered cows, including 30 of non-pregnancy, and used enzyme-linked immunosorbent assay (ELISA) for estimation of plasma progesterone concentration and serum luteal hormone. The mean diameter of non-pregnant corpus luteum is $18.9{\pm}4.2{\times}15.6{\pm}3.6 mm$ and that of pregnant corpus luteum is $22.5{\pm}2.7{\times}18.7{\pm}2.9 mm$. This indicates that corpus luteum is more developed in the ovary of pregnant than non-pregnant cows (P<0.05). The diameter of pregnant corpus luteum according to the stage of pregnancy showed $21.3{\pm}2.4{\pm}18.4{\pm}2.6 mm$ in early stage (1-3 month), $23.4{\pm}2.8{\times}19.1{\pm}2.7 mm$ in middle stage (4-6 month) and $22.8{\pm}3.0{\times}18.8{\pm}2.4mm$, in last stage (7-9 month). This indicates that corpus luteum in middle and last stage is more significantly developed than that of early stage(P<0.05). The mean plasma progesterone concentration of cows showing size of non-pregnant corpus luteum was $4.58{\pm}0.92ng/ml$ and that of pregnant corpus luteum $8.26{\pm}0.98ng/ml$. Thus, it was more significantly increased in pregnant corpus luteum(P<0.02).. However, it was low to $0.58{\pm}0.39ng/ml$. in estrus (corpus albicans). The plasma progesterone concentration according to gestation period was high in proportion to the degree of development in corpus luteum and more significantly increased (P<0.05) and maintained in middle and last state than early state. The concentration was sharply decreased to $0.56{\pm}0.32ng/ml$ at parturition. As a consequence, we can practice the early pregnancy diagnosis by confirming non-pregnancy when the mean plasma progesterone concentration is below 1ng/ml 19 to 22 days after AI and this can be available to diagnose reproductive disorder.

• 한국산림과학회지
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• 제89권5호
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• pp.543-551
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• 2000

소나무의 갱신 특성을 구명하기 위하여 강원도 평창군 중왕산 지역 소나무 천연림에서 교란에 의해 형성된 숲틈을 대상으로 line-transect 조사법에 의해 소나무의 수관 architecture 특성을 조사, 분석하였다. 갱신 초기단계에 소나무는 숲틈에서 생장환경에 적응능력을 나타내었고 소개된 임분에서 자라는 소나무에 비해 architecture 특성은 다르게 나타났다. 소나무 천연림내 숲틈에서 소나무의 주 가지의 분지각의 변이폭은 작았고 주 가지의 길이 생장량은 가지 연령이 4~5년생 일 때까지 비교적 크게 나다났고 그 이후에는 점차 작아졌다. 숲틈에서 소나무의 줄기로부터는 주 가지가 평균 5개씩 발생하였고 주가지에서는 잔가지가 평균 4개씩 발생하였다. 줄기에서 발생한 주 가지는 방위별로 균일한 분포양상을 나타내었지만 주가지에서 발생하는 잔가지의 수는 숲틈의 크기가 $100{\sim}120m^2$이하일 때 주로 $S44^{\circ}E{\sim}S90^{\circ}W$ 사이의 방위에 많이 분포하였다.

• 한국응용곤충학회지
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• 제39권2호
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• pp.83-87
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• 2000

최근 강원도 원주 등지에서 은행나무에 큰 피해를 주었던 대만나방의 생활사를 1998년부터 1999년까지 조사하였다. 현재까지 우리 나라에서는 자세히 보고된 바 없는 알, 유충, 번데기 및 성충의 형태적 특징과 각 충태별 기간 및 생태적 특성을 조사하였다. 대만나방은 연 1회 발생하였으며, 6령충으로 기주식물의 가지에서 월동하였다. 유충은 총 9령을 거치며, 종령유충은 6월하순경에 가지에서 은행잎 2-3장을 엮은뒤 갈색실을 토하여 고치를 틀고 그 속에서 번데기가 되었다. 성충은 7월초순부터 8월초순에 걸쳐 우화하였으며 우화최성기는 7월하순이었다. 교미한 암컷은 평균 205개의 알을 난괴형태로 산란하였으며, 산란장소는 가지, 줄기, 또는 잎의 가장자리였다.

• 한국약용작물학회지
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• 제21권1호
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• pp.49-53
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• 2013

This study was performed to evaluate the adaptability of farm field soil transplanting and habitat growth in inland and seashore areas of Artemisia capillaris in South Korea. In habitat, Artemisia capillaris was distributed both in the inland and seashore area as hemicryptophyte, and it grows individually on the slope of the open sunlight. The inland and seashore soils of habitat was the slightly acid and weakly alkaline, respectively. Plant height was 55.6 cm, and it was higher in inland than that of the seashore area. The stem and branch number was less in inland than that of the seashore area. Flowering period was mid-August, and flower of inland blossomed early 1 ~ 3 days than that of the seashore area. The flowering and fruiting rate was slightly lower in inland than that of the seashore area. After transplanting of Artemisia capillaris, plant height was 71.7 cm, and it was higher 16.1 cm than that of the habitat. The stem and branch number was more than that of the habitat, and flower blossomed early 3 ~ 4 days than that of the habitat. Transplanting survival rate was 85.1%, it was slightly higher in inland than that of the seashore area.

• 천문학논총
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• 제30권2호
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• pp.489-490
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• 2015

We present population synthesis models for the calcium II triplet (CaT), currently the most popular metallicity indicator, based on high-resolution empirical spectral energy distributions (SEDs). Our new CaT models, based on empirical SEDs, show a linear correlation below [Fe/H] ~ -0.5, but the linear relation breaks down in the metal-rich regime by converging to the same equivalent width. This relation shows good agreement with the observed CaT of globular clusters (GCs) in NGC 1407 and the Milky Way. However, a model based on theoretical SEDs does not show this feature of the CaT and fails to reproduce observed GCs in the metal-rich regime. This linear relation may cause inaccurate metallicity determination for metal-rich stellar populations. We have also confirmed that the effect of horizontal-branch stars on the CaT is almost negligible in models based on both empirical and theoretical SEDs. Our new empirical model may explain the difference between the color distributions and CaT distributions of GCs in various early-type galaxies. Based on our model, we claim that the CaT is not a good metallicity indicator for simple stellar populations in the metal-rich regime.

• Asian Pacific Journal of Cancer Prevention
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• 제17권sup3호
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• pp.317-321
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• 2016

Detection of micrometastasis in sentinel lymph nodes (SLNs) is a very useful tool for appropriate assessment of the clinical stage of disease in breast cancer patients. Early identification of clinically relevant disease could lead to early treatment or staging approaches for breast cancer patient. Micrometastases in SLNs of women with invasive breast cancer are of great significance in this context. In this study we examined SLN biopsies considered to have small numbers of cancerous cells by real time RT-PCR. All of the samples underwent immunohistochemical staining for cytokeratin for confirmation of the presence or absence of micrometastases. BUB1b expression assay of selected patients with and without metastasis showed overexpression in the former, but not in normal breast and lymph node tissue. Our results may be taken into account in the discussion about the merits of routine use of molecular assessment in pathogenetic studies of SLNs.

• 한국자원식물학회지
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• 제9권3호
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• pp.285-290
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• 1996

조만성(早晩性) 차이가 뚜렷한 한생종(旱生種)으로 오대(五臺)벼와 신운봉(新雲峰)벼, 중생종(中生種)으로 청명(淸明)벼와 장안(長安)벼, 만생종(晩生種)으로 동진(東津)벼와 만금(萬金)벼 둥의 6개 품종을 가지고 호남농업시험장(湖南農業試驗場) 수도도장(水稻圖場)에서 1993년 5월 5일부터 7월 5일까지 15일 간격으로 5회에 걸쳐 작기이동으로 이질(移秩)하여 1,2차(次) 지경(枝梗)과 수상(穗相)의 착생변이(着生變異)에 대한 특성을 비교 검토하였던 바 다음과 같다. 1. 익산지방의 적기이앙(移秧)인 6월 5일 기준으로 조생종(早生種)의 1차지경수(次枝梗數)는 5월 5일 이앙(移秧)부터 5 월 20일 이앙(移秧) 사이의 조기이앙(移秧)에서 많았으며 중(中), 만생종(晩生種)은 적기이앙(移秧)보다 약간 늦은 6 월 20일 이앙(移秧)에서 가장 많았다. 2. 2차지경수(次枝梗數)는 조만성(早晩性)에 관계없이 6월 5일 이앙(移秧) 부터 6월 20일 이앙(移秧)사이에서 많았으며 1차지경수당(次枝梗數當) 2차지경수(次枝梗數)의 증가율(增加率)은 5월 5일 이앙(移秧)에서는 낮았으나 5월 20일 이앙(移秧)에서 급격히 증가(增加)하였고 조생종(早生種)은 6월 20일, 중생종(中生種)은 6월 5일에 최고(最高)에 달했으나 만생종(晩生種)은 6월 5일 이후 큰 차이가 없었다. 1차(次) 및 2차지경(次枝梗) 착생립수(着生粒數)은 조만성(早晩性)에 관계없이 5월 5일 이앙(移秧)에서 적었지만 7월 5일 이앙(移秧)인 만기이앙(晩期移秧)에서 많이 착생하는 경향이었다. 4. 착립밀도(着粒密度)도 5월 5일 이앙(移秧)보다는 만기이앙(移秧)에서 높은 경향이었는데 조생종(早生種)은 7월 5일 이앙(移秧)에서 높았지만 중(中), 만생종(晩生種)은 6월 20일 이앙(移秧)에서 높았다.간(晩期刈取乾草區間)의 소화율(消化率)을 비교하면 1%수준(水準)의 유의차(有意差)가 있었다.TEX>를 첨가(添加)하므로서 양질(良質)의 silage를 생산(生産)할 수 있다고 사료(思料)된다.향이 없었으나 골목 $m^3$당 접종량(接種量) 4.0kg구가 1.63g로 가장 큰 것으로 나타났다.과(結果)를 종합(綜合)해 보면 전호(前胡)의 용도별(用途別) 적정(適正) 재식거리(栽植距離)는 채소형(菜蔬型) $30\times20cm$, 약재형(藥材型) $60\times30cm$, 채소(菜蔬) 약재(藥材) 복합형(複合型) $45\times20cm$에서 지하부(地下部) 생육(生育)이 양호(良好)하면서 생엽(生葉) 및 건근(乾根) 수량(收量)이 증수(增收)되는 경향(傾向)을 보였다.퇴비(堆肥) 등(等) 유기질(有機質) 비료(肥料) 시용(施用)이 효고적(效果的)이었다.DS-PAGE법(法)으로 단백질(蛋白質) 양상을 등숙시기별(等熟時期別)로 조사(調査)한 결과(結果) 두 계통간(系統間) 질적(質的)인 차이(差異)는 보이지 않았으나 시기별(時期別)로는 양적차이(量的差異)를 나타냈다.間)에는 부(負)(-)의 상관(相關)이 있다.($P{\leq}0.01%$). 5. NEL 및 starch value 환경온도(環境溫度)가 상승(上昇)됨에 따라 감소(減少)된다. 4 엽기(葉期) sorghum식물(植物)의 환경온도(環境溫度)를 달리 하였을 때 NEL가치(價値)는 각각(各各) 4.87MJ($30/25^{\circ}C$), 5.46MJ($25/20^{\circ}C$) 및 5.81MJ/kg($18/8^{\circ}C$)로 변(變)하여 고온(高溫)에서