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趙明濟 한국중세사학회 2004 한국중세사연구 Vol.0 No.16
The Inscriptions on a Tombstone in Goryeo Dynasty(高麗時代) in KOKUGAKUIN UNIVERSITY(國學院大學) collected by Tokutomi Soho(德富蘇峰). The new Inscriptions are as follows 1) Ryu, Chang-Woon(柳昶雲) 2) Jeangunbuin Hwangbossi(齊安郡夫人 皇甫氏) 3) Okgugundaebuin Limssi(沃溝郡大夫人 林氏) 4) Ryeom, Su-Jang(廉守臧) This Inscriptions are of use to study Social history and history of thoughts in Goryeo Dynasty.
崔善奎,李明豪,趙伯濟 서울大學校經濟硏究所 2001 經濟論集 Vol.40 No.4
이 글에서는 최근 전자상거래의 비중이 높아짐에 따라 경제학의 주요 연구대상인 가격구조, 시장의 효율성, 기업의 전략 측면에서는 어떤 이슈가 생성·연구되고 있는지 살펴보고 있다. 이 논문에서 다루고 있는 주요 내용은 다음과 같다. 소비자의 탐색비용이 낮아짐에 따라 전자상거래에서 팔리고 있는 제품의 전반적인 가격수준은 오프라인에 비해선 낮아지고 있다. 전자상거래가 소비자 수요의 가격탄력성에 미치는 영향은 양면적으로 보인다. 전자상거래의 가격구조에서 흥미로운 사실은 오프라인에 비해서 동일 제품에 대한 가격분산의 폭이 크다는 것이다. 전자상거래가 확산되면서 가격경쟁이 벌어질 경우 디지털 정보재화시장에서의 가격은 한계비용인 영에 근접하기 쉽다. 기업들은 가격경쟁을 회피하는 방안으로 여러 가지 차별화전략을 구사하게 되고, 새로운 중계기관이 생겨나고 있다. 또 기존의 예상과는 구매자-판매자 관계는 시장 지향적이라기 보다는 위계 지향적인 관계가 주류를 이루고 있는 것으로 나타난다. 인터넷의 등장과 전자상거래의 확산으로 기업전략 측면에서 제품의 효과적인 개인화 방법, 브랜드 관리기법, 인터넷 광고의 효과성, 전자상거래 하에서의 여러 혁신적인 가격차별전략(경매가격, 실시간 동적 가격차별), 기존의 유통채널과 온라인 유통채널 간의 갈등(channel conflict) 등의 문제가 나타나고 있다.
Myeong Cheoul Cho,Rajametov Sherzod,Hyo Bong Jeong,Eun Young Yang,Kwanuk Lee,Chun Woo Nam,Doo Jong Ha,Dan Hye Kim,Hyoung Je Yoo 한국원예학회 2021 한국원예학회 학술발표요지 Vol.2021 No.10
The purpose of this study was to investigate effect of the grafting. We used “Spider” (Takii seed, Japan) rootstock and ‘Dokia’, ‘TY Red 250’ and ‘Pilabi’ varieties having red color at the four season house in South Korea. All tomato cultivars seedlings were transplanted on 4 March of 2021 to greenhouse, where day and night temperatures were maintained at 18/32°C, and relatively humidity was within D/N 40 ‒ 90%. Tomato seedlings grafted (GF) and non-grafted (control, CT) having the first truss were planted on substrate perlite (mixture of perlite no.1 and no.3), fertilization - EC 3.0ds/m, pH 6.0, 6 to12 times per day, cooling system-Forced ventilation (open above 25°C), cooling through fog system (on above 28°C). Drip irrigation systems are used (200 ‒ 250 mL per plant in each time). Plant height (PH), leaf length and width (LL and LW), days to flowering (DF), fruit weight (FW) and yield (FY) parameters were measured. Effect of grafting on vegetative and reproductive parameters of tomato was differed among cultivars. There were identified the significant increasing of the PH in GF plants of cv. ‘Dokia’ than CT for 150 days after transplanting (DAT), while cv. ‘TY Red 250’ showed opposite trend, it is decreased in GF plants until 90 DAT then showed no difference. Only in plants of cv. ‘Pilabi’ no found difference between GF and CT during all growth stages. The grafting contributed to delay the blossom significantly in 2nd truss among all tomato cultivars than CT, but in subsequent growth stages from 5th to 15th truss no identified significant difference DF, except cv. ‘TY Red 250’ in 10th truss. The leaf parameters (LL and LW) showed decreasing with aging of plants among all cultivars on 150 DAT and no observed significant difference during all growth period, except cv. ‘Dokia’ within 2nd and 15th truss. Also, with aging of plants in fruits from 10th truss were identified significantly decreasing of FW among all cultivars regardless of the treatments, but there had been persist the difference in values among cultivars and treatments. The significant high yield (the sum from 1st to 10th truss) were pickup from GF plants of cv. “TY Red 250” than in CT, whereas in cv. ‘Dokia’ and ‘Pilabi’ no found difference in yield between GF and CT plants.
Myeong Cheoul Cho,Rajametov Sherzod,Hyo Bong Jeong,Eun Young Yang,Kwanuk Lee,Chun Woo Nam,Doo Jong Ha,Dan Hye Kim,Hyoung Je Yoo 한국원예학회 2021 한국원예학회 학술발표요지 Vol.2021 No.10
The objective of this study was to evaluate effect of the grafting. We used ‘Spider’ (Takii seed, Japan) rootstock and big size (Pink type) tomato cultivars ‘Pink Star’, ‘K-Star’ and ‘Dotaerang’ at the four season house in South Korea. Bacterial wilt (caused by Ralstonia solanacearum) and Fusarium wilt (Fusarium oxysporum) diseases tolerant rootstock “Spider” was used. All tomato cultivars seedlings were transplanted with distance 25 cm of plants, in 4 March of 2021 to greenhouse, where day and night temperatures were maintained at 18/32°C, and relatively humidity was within D/N 40 ‒ 90%. Tomato seedlings grafted (GF) and non-grafted (control, CT) were planted on substrate perlite (mixture of perlite no.1 and no.3), fertilization - EC 3.0ds/m, pH 6.0, 6 to12 times per day, cooling system- Forced ventilation (open above 25°C), cooling through fog system (on above 28°C). Drip irrigation systems are used (200 ‒ 250 mL per plant in each time). Plant height (PH), leaf length and width (LL and LW), days to flowering (DF), fruit weight (FW) and yield (FY) parameters were measured. Effect of rootstock on vegetative and reproductive parameters of tomato was differed among cultivars. So, grafted plant significantly decreased growth rate among plants of cv. ‘K-Star’ for all growth period, and the same pattern were observed in cv. ‘Dotaerang’ and ‘Pink Star’ but it persists until 60 DAT (days after transplanting), respectively. Evaluation of influence of grafting on days to flowering among cultivars showed that there no identified significant difference starting of the flowering between GF and CT treatments for all growth period. Almost the same pattern was observed in study of LL and LF among all cultivars, where with aging of plants were identified decreasing of the LL and LF parameters regardless of cultivars and treatments. As mentioned above, with aging of plants were identified significantly decreasing of FW among all cultivars regardless of the treatments, but there was persist the difference in values among cultivars and treatments. And, among all cultivars no found significant difference in FW between GF and CT plants. The significant high yield per plant among cultivars were harvested from GF plants of cv. ‘Pin Star’, however there no found significant difference between GF and CT plants inside of each cultivar. It means GF no significantly affect on FW and FY parameters among studied pink type tomato cultivars.
Lee, Je Min,Kim, Seyoon,Lee, Ji Young,Yoo, Eun Young,Cho, Myeong Cheoul,Cho, Min Rae,Kim, Byung-Dong,Bahk, Young Yil WILEY-VCH 2006 Proteomics Vol. No.
<P>Using proteomic analysis including 2-DE, image analysis, and protein identification with LC-MS/MS, an investigation aimed at a better understanding of the differentially expressed proteins and/or gene products was carried out with total cell extracts from placental tissues in nonpungent (Capsicum annuum cv. Saeng-Ryeog #213) and pungent peppers (C. annuum cv. Saeng-Ryeog #211). Mobilization of the most abundant proteins, which were on the gels of pH ranges of 4–7, 4.5–5.5, 5.5–6.7, and 6–9, and showed very similar profiles in the two tissues, revealing approximately 2600 protein spots consisting of 1200 on pH 4–7, 600 on 4.5–5.5, 550 on 5.5–6.7, 250 on 6–9. Of these, 37 protein spots, which appeared in only pungent tissues but not in nonpungent tissues or markedly increased in their staining intensities on the gels from pungent tissue, were selected, excised, in-gel trypsin digested, and analyzed by LC-ESI-MS/MS. Peptide MS/MS data were searched against publicly available protein and EST databases, and 22 proteins were identified. Based on this result, we tested and compared the differential expression during fruit development on the 2-DE gels with total cell extracts from placental tissues of pungent and nonpungent peppers at an interval of 10 days from 10 to 40 days after flowering. In addition, this differential protein expression was further confirmed for some subsets of candidates by Northern-blot analysis with RNA samples from placental tissues harvested from each pepper fruit at the same sampling intervals. In this study, the physiological implications, revealed from the experimental data in the levels of proteome and transcripts, are discussed in the context of a complex biosynthesis network of capsaicinoids in pepper cells responsive to pungency.</P>
Kim, Myeong Ok,Lee, Jeoung Sook,Cho, Kyeong Je,Lee, Bong Hee,Lee, Byung Ju,Choi, Wan Sung 경상대학교 유전공학연구소 1992 遺傳工學硏究所報 Vol.11 No.-
hypothalamic GnRH neurons are originated from olfactory placode of embryo.They enter brain regions during embryonic development and are loosely distributed within hypothalamic area and other brain regions. In the adult animals, however, GnRH is yet not known to be locally expressed in the olfactory cortex. Therefore, present study initially aims to acertain whether GnRH mRNA in the rat brain with in situ hybridization histochemistry. Interestingly, GnRH mRNAs are highly concentrated in the olfactory cortex of brain. To further elucidate the nature of GnRH transcripts in the olfactory system involving olfactory cortex and bulbs, we employed Northern hybridization and PCR analysis. GnRH mRNA in the rat olfactory cortex and bulb is similar in size to that in hypothalamus. The size of PCR products of olfactory cortex and bulbs are same with that of hypothalamus. Therefore, we suggest that GnRH in the olfactory system is expressed through a similar machinery with hypothalamic GnRH.