• 한국가금학회지
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• 제12권2호
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• pp.83-87
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• 1985

This experiment was carried out to identify the chromosomes of silkie. It was many difference from other breeds in morphology and characteristics. In this experiment, chromosomal analysis was used early embryos. In aspect of morphological chromosomes, chromosomal size and shape are similar to other breeds. The chromosomes of silkie were shown to morphlogy as follows. They were identified that chromosome #l and #2 were grouped as submentacentric, ＃3, ＃5 and ＃6 were telocentric ＃4 and ＃7 were acrocentric and ＃8 was metacentric chromosome. Zㆍsex chromosome was shown 5th, W-sex chromosome was 8th to 9th and they were metacentric chromosome, respectively. Each chromosome through the G-banding was shown the 3 dark bands in 1 p2, distinct light band in 1p1, dark band in 2p2, broad light band in 3pl, dark band from centromere and distal part in 4th chromosome and dark band in 5pl. Z-sex chromosome was shown dark at p-arm distal part.

• 한국작물학회지
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• 제34권3호
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• pp.270-273
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• 1989

벼 품종의 관수저항성 관련 특성을 검토코자 24일묘를 3일간 관수처리하여 뿌리와 엽신의 POD 비활성도 및 POD 동위효소들을 PAGIF법으로 전기영동하여 본 결과 관수저항성이 상대적으로 약한 일본형품종들은 통일형이나 인도형품종들보다 POD 비활성도가 높았으며 또한 관수처리로 일본형품종들의 엽신부에서는 무관수시 어느 부위에서도 나타나지 않았던 POD 동위효소의 특이 band가 등전점 9부근에서 출현하였다.

• 한국자원식물학회지
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• 제4권1호
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• pp.5-12
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• 1991

A combination of acerocarininc-Wright C-banding technique was utilized to identify each chromosomes in durum wheat ,Triticum durum var. Hordeiforme (2n=4x=28 AABB), This technique elucidated qualitativr and quantitative traits of the indi-vidual chromosomes In coinplement. Most comspicuous bands were observed at thecentromere of B-genome chronmosomes. Each chromosomes of A-genome had some-what weak centromeric, proximal and terminal bands. Chromosomes 2A and 4A hasa small subterminal bands. 6A is smallest and metacentric chromosome and , has two faint interstitial band. Chromosomes 1B and 6B showed satellite and constriction lage band. Short arm of 3B has three heavily interstitial bands. Both arms of chromosome 4B has a lagc centromeric band and a very lage proximal band. 5B had heavilycentromeric band and the long arm showed prominent two interstitial bands. Chromo-somes 25 and 7B has a small terminal band of both arms.

• Journal of Plant Biology
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• 제39권3호
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• pp.203-207
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• 1996

On the basis of karyotypic analysis performed by conventional staining and Giemas C-banding technique, cytological relationship was inferred for 21 lines of Paeonia lactiflora Pal. cultivated in Korea. It was very difficult to infer their organized karyotypic classification system using the composition of somatic chromosomes involving sat-chromosomes, relative length of chromosomes, arm ratio and karyotypic formulae by conventional staining. From the distribution and number of Giemsa C-bands on the chromosomes b and c, 21 lines can be subclassified into 5 groups. It seems that the karyotypic polymorphism is observed in 21 lines of cultivated P. lactiflora because peony mainly propagates by outbreeding.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 2009년도 춘계 학술대회 제21권1호
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• pp.213-214
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• 2009

본 연구에서는 레미콘 배처플랜트를 이용하여 제조한 SHCC의 휨 및 인장특성을 평가하고, 이를 실내실험 결과와 비교 검토하였다.

• Asian-Australasian Journal of Animal Sciences
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• 제2권1호
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• pp.35-38
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• 1989

Giemsa C-banded mitotic chromosome prepatations from White Leghorn, New Hampshire and Rhode Island Red inbred lines were compared for frequency of C-band regions on individual chromosomes. Except for autosomes 3, 6, 8 and 9 and W sex chromosomes, C-banding was extremely variable in other macrochromosomes. No divergence for C-band difference between homologous chromosomes of these lines was detected. Approximately 75% of the mitotic metaphase microchromosomes have recognizable C-band regions with the current technique.

• Investigative Magnetic Resonance Imaging
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• 제21권4호
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• pp.210-222
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• 2017

Purpose: To develop a novel combination of controlled aliasing in parallel imaging results in higher acceleration (CAIPIRINHA) with integrated SSFP (CAIPI-iSSFP) for accelerated SSFP imaging without banding artifacts at 3T. Materials and Methods: CAIPI-iSSFP was developed by adding a dephasing gradient to the balanced SSFP (bSSFP) pulse sequence with a gradient area that results in $2{\pi}$ dephasing across a single pixel. Extended phase graph (EPG) simulations were performed to show the signal behaviors of iSSFP, bSSFP, and RF-spoiled gradient echo (SPGR) sequences. In vivo experiments were performed for brain and abdominal imaging at 3T with simultaneous multi-slice (SMS) acceleration factors of 2, 3 and 4 with CAIPI-iSSFP and CAIPI-bSSFP. The image quality was evaluated by measuring the relative contrast-to-noise ratio (CNR) and by qualitatively assessing banding artifact removal in the brain. Results: Banding artifacts were removed using CAIPI-iSSFP compared to CAIPI-bSSFP up to an SMS factor of 4 and 3 on brain and liver imaging, respectively. The relative CNRs between gray and white matter were on average 18% lower in CAIPI-iSSFP compared to that of CAIPI-bSSFP. Conclusion: This study demonstrated that CAIPI-iSSFP provides up to a factor of four acceleration, while minimizing the banding artifacts with up to a 20% decrease in the relative CNR.

• 농업과학연구
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• 제12권1호
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• pp.1-16
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• 1985

오이의 성발현(性發現) 기구(機構)에 관(關)한 기초(基礎) 자료(資料)를 얻고저 비절성(飛節成) 품종(品種)인 사엽(四葉), 절성(節成) 품종(品種)인 신록다다기, 그 중간형(中間型)인 성호원(聖護院)을 공시(供試)하여 종자(種子)와 최아종자(催芽種子)의 단백질함량(蛋白質含量)의 품종간(品種間) 차이(差異)와 2엽기(葉期)와 4엽기(葉期)의 ethephon(250 ppm)과 gibberellin(100ppm) 처리(處理)에 의한 성발현(性發現) 양상(樣相)과 식물체내(植物體內)의 단백질함량(蛋白質含量), peroxidase 활성(活性) 및 disc polyacrylamide gel 전기영동(電氣泳動)에 의한 단백질(蛋白質) banding pattern과 peroxidase isozyme banding pattern의 소장관계(消長關係)를 조사(調査)하여 다음과 같은 결과(結果)를 얻었다. 1. Ethephon 처리(處理)는 자화(雌花)의 착생(着生)을 약간 증가(增加)시키고, 웅화(雄花)의 착생(着生)을 현저(顯著)히 감소(減少)시켰으며 gibberellin 처리(處理)는 절성종(節成種)인 신록다다기와 성호원(聖護院)의 웅화수(雄花數)를 현저(顯著)히 증가(增加)시켰으나 비절성(飛節成)일 사엽(四葉)의 웅화수(雄花數)는 증가(增加)시키지 못하였다. 2. 종자(種子)와 최아종자(催芽種子)의 단백질함량(蛋白質含量), 단백질(蛋白質) 및 peroxidase의 banding pattern은 품종간(品種間)에는 약간의 차이(差異)가 있었으나 절성(節成)과 비절성간(飛節成間)에는 뚜렷한 차이(差異)를 인정(認定)할 수 없었다. 3. 2 엽기(葉期)와 4 엽기(葉期)의 단백질함량(蛋白質含量)은 잎과 생장점(生長點)에서 모두 처리후(處理後) 일수(日數)가 경과(經過)함에 따라 2엽기(葉期)에는 증가(增加)하으나 4엽기(葉期)에는 오히려 감소(減少)되는 경향(傾向)을 보였다. 그리고 4 엽기(葉期) 생장점(生長點)에 있어서 비절성(飛節成)인 사엽(四葉)은 ethephon 처리(處理)에 의해 단백질함량(蛋白質含量)이 무처리구(無處理區)에 비(比)해 높아졌으나 신록다다기와 성호원(聖護院)은 오히려 낮아졌다. 4. Peroxidase 활성(活性)은 2 엽기(葉期)에는 잎이나 생장점(生長點)에서 모두 일수(日數)가 경과(經過)함에 따라 감소(減少)하였으나 4엽기(葉期)에는 오히려 증가(增加)되는 경향(傾向)이었다. 특(特)히 ethephon 처리구(處理區)는 4엽기(葉期) 생장점(生長點)에서 그 활성(活性)이 현저(顯著)히 높아져 5일(日)째에는 타처리구(他處理區)에 비(比)해 월등(越等)히 높았다. 5. 단백질(蛋白質)의 banding pattern은 2엽기(葉期)에는 잎과 생장점(生長點) 공(共)히 처리후(處理後) 일수(日數)가 경과(經過)함에 따라 3품종(品種)모두 band 수(數)가 감소(減少)되었으나 4엽기(葉期)에는 오히려 band수(數)가 증가(增加)되는 경향(傾向)이었다. 4엽기(葉期) 생장점(生長點)의 단백질(蛋白質) pattern은 비절성(飛節成)인 사엽(四葉)의 ethephon 처리구(處理區)가 절성(節成)인 신록다다기의 무처리구(無處理區)와 같은 양상(樣相)으로 변화(變化)되어 갔다. 6. Peroxidase isozyme banding pattern은 2엽기(葉期) 잎에서 비절성(飛節成)인 사엽(四葉)의 ethephon 처리구(處理區) pattern이 성호원(性護院) 및 신록다닥기의 ethephon 처리ㅜ(處理區) pattern으로 닮아 감을 볼 수 있었고 4엽기(葉期) 생장점(生長點)에서는 처리후(處理後) 일수(日數)가 경과(經過)함에 따라 사엽(四葉) ethephon 처리구(處理區)의 pattern이 성호원(聖護院) 및 신록다다기의 무처리구(無處理區) pattern으로 닮아 감을 볼 수 있었다. 7. 이상(以上)의 결과(結果)로 볼 때 비절성종(飛節成種)은 ethephon에 의해 식물체내(植物體內)의 단백질함량(蛋白質含量), peroxidase 활성(活性) 및 단백질(蛋白質)과 peroxidase isozyme의 pattern이 절성종(節成種)에 가깝게 변화(變化)되어 절성화(節成化)되며, 따라서 이들의 변화(變化)가 오이의 성발현(性發現)에 깊이 관여(關與)하는 것으로 사료(思料)된다.

• 한국패류학회지
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• 제11권1호
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• pp.51-61
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• 1995

A horizontal starch gal electrophoresis for enzyme proteins extracted from 3 species of Korean planorbid snails; Gyraulus convexiusculus, Hippeutis cantori and Segmentina hemisphaerula was carried out in order to elucidate their genetic relationships.The results from 12 enzymes employed in three different kinds of buffer systems are summarized as follows:1) Two loci from each enzyme of aldehyde oxidase, esterase, glucose phosphate isomerase. isocitrate dehydrogenase, leucine aminopeptidase, malate dehyogenase, peptidase and xanthine oxidase were detected, and only one locus was observed from each of the following four enzymes: 6-phosphogluconate dehydrogenase, glyceraldehyde-phosphate dehydrogenase, glutamate oxaloacetate transaminase and glycerol-3-phosphate dehydrogenase.2) Most of loci in 3 species of planorbid snails employed showed homozygous and monomorphic banding patterns and some of them were specifis as genetic markers among different species. However, a few of loci (EST-1. EST-2 and GPI-2)showed polymorphic banding patterns. 3)Hippeutis cantori and Segmentina hemisphaerula were more closely clustered in a dendrogram with the genetic iddentity value of 0.431, and these two species were lineated with Gyraulus convexiusculus as another cluster at the value of 0.294.In summarizing the above results, three species of Korean planorbid snails employed in this study mostly showed monomorphic enzyme protein banding patterns and genetic differences specific among 3 species.

• Parasites, Hosts and Diseases
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• 제38권1호
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• pp.45-48
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• 2000

An enzyme analysis of the liver fluke, Clonorchis sinensis from Kimhae, Korea and from Shenyang, China was conducted using a horizontal. starch gel electrophoresis in order to elucidate their genetic relationships. A total of eight enzymes was employed from two different kinds of buffer systems. Two loci from each enzyme of aconitase and esterase (${\alpha}-Na{\;}and{\;}{\beta}-Na$) : and only one locus each from six enzymes, gluucose-6-phosphate dehydrogenase (G6PD), ${\alpha}-glycerophosphate$ dehydrogenase (GPD), 3-hydroxybutyrate dehydrogenase (HBDH), malate dehydrogenase (MDH), phosphoglucose isomerase (PGI), and phosphoglucomutase (PGM) were detected. Most of loci in two populations of C. sinensis showed homozygous monomorphic banding patterns and one of them, GPD was specific as genetic markers between two different populations. However, esterase (${\alpha}-Na$), GPD, HBDH and PGI loci showed polymorphic banding patterns. Two populations of C. sinensis were more closely clustered within the range of genetic identity value of 0.998-1.0. In summarizing the above results, two populations of C. sinensis employed in this study showed mostly monomorphic enzyme protein banding patterns, and genetic differences specific between two populations.