• Title/Summary/Keyword: Gasa

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Characterization of Gibberellic Acid-Stimulated Arabidopsis (GASA) gene to drought stress response in Poplar (Populus alba × P. glandulosa) (현사시나무 Gibberellic Acid-Stimulated Arabidopsis (GASA) 유전자의 발현 특성 및 건조 스트레스 내성 구명)

  • Choi, Hyunmo;Bae, Eun-Kyung;Choi, Young-Im;Yoon, Seo-Kyung;Lee, Hyoshin
    • Journal of Plant Biotechnology
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    • v.44 no.1
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    • pp.61-68
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    • 2017
  • Gibberellic Acid-Stimulated Arabidopsis (GASA) genes are involved in plant hormone signaling, cell division and elongation, as well as in responses to stress conditions in plants. In this study, we isolated a GASA gene from hybrid poplar (Populus alba ${\times}$ P. glandulosa) and analyzed its physiological phenotype and molecular functions in poplar. PagGASA cDNA encodes a putative protein composed of 95 amino acids containing an N-terminal signal peptide and a conservative cysteine-rich C-terminal domain. Southern blot analysis revealed that one or two copies of the PagGASA are present in the poplar genome. The PagGASA transcripts were highly detected in flowers and roots. Moreover, the expression of PagGASA was induced by growth hormone (gibberellic acid) and stress hormones (abscisic acid, jasmonic acid, and salicylic acid). By using transgenic analysis, we showed that the upregulation of PagGASA in poplar provides high tolerance to drought stress. Therefore, our results suggest that PagGASA plays an important role in drought stress tolerance via stress-related plant hormone signaling in poplar.

Genome-Wide Comprehensive Analysis of the GASA Gene Family in Peanut (Arachis hypogaea L.)

  • Rizwana B.Syed Nabi;Eunyoung Oh;Sungup Kim;Kwang-Soo Cho;Myoung Hee Lee
    • Proceedings of the Korean Society of Crop Science Conference
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    • 2022.10a
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    • pp.231-231
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    • 2022
  • The GASA protein (Gibberellic acid-stimulated Arabidopsis) are family of small cysteine-rich peptides found in plants. These GASA gene family mainly involved in biotic/abiotic stress responses and plant development. Despite being present in a wide plant species, their action and functions still remain unclear. In this study, using the in-silico analysis method we identified 41 GASA genes in peanuts (Arachis hypogaea L.). Based on the phylogenetic analysis 41 GASA genes are classified in the four major clusters and subclades. Mainly, clusters IV and III comprise the majority of GASA genes 15 and 11 genes respectively, followed by cluster I and cluster II with 9 and 6 genes respectively. Additionally, based on in-silico analysis we predicted the post-transcriptional and post-translational changes of GASA proteins under abiotic stresses such as drought and salt stress would aid our understanding of the regulatory mechanisms. Hence, a further study is planned to evaluate the expression of these GASA genes under stress in different plant tissues to elucidate the possible functional role of GASA genes in peanut plants. These findings might offer insightful data for peanut advancement.

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The Study on the 天.王 Embroidery in Korean Gasa (한국가사(韓國袈裟)에 나타난 천(天).왕문(王紋)에 대한 연구)

  • Lee, Soon-Deuk
    • Korean Journal of Human Ecology
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    • v.12 no.4
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    • pp.509-518
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    • 2003
  • Gasa was a surplice of Buddhist monk. It was usually worn in the religious ceremony. Gasa was such a religious cloth that was ruled strongly by Buddha's Commandments, and a kind of cloth that was also reflected by historical, cultural, and ideological factors of each nation. Korean Gasa had various features comparing to the Original Gasa or to that of South Asia which is the birthplace of Buddhism. One of them was 天 王 embroideries that we could find upon the regular square base in the four comers of Korean Gasa. These figures symbolized the Four Devas which were believed guarding Buddhist sanctum. These Devas appeared from the era of the Three Kingdoms when Buddhism imported. Buddhism as a alien religion had been developed through conflicting and fusing with Korean traditional religious characteristics into type of 'Faith to Three Treasures' (Buddha, Buddhist Commandments, Buddhist monk). They believed that embroidering 天 王 figures upon the regular square bases in the four corners were able to protect Buddhist monk by the help of Four Devas. We might say this as a kind of Faith to Buddhist monk.

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Ancient Korean Costume Speculated on the Samguk-yusa (三國遺事)

  • Kang, Min-Hye;Cho, Woo-Hyun
    • International Journal of Costume and Fashion
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    • v.10 no.2
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    • pp.37-49
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    • 2010
  • The Samguk-yusa(三國遺事) is one of the two classics of Korean ancient history together with the Samguk-sagi(三國史記); however there has not been any positive attempt to analyse clothing culture centering on the Samguk-yusa until now. Thereupon, this study aims to find the records related to fabrics, color and fashion appearing in the Samguk-yusa, and to analyse the fashion culture of the three kingdoms projected in the Samguk-yusa, referring to the Samguk-sagi and ancient Chinese reference books. According to the records in the book, the fabrics used for clothing of those days included Jikgeum-wimun(織錦爲紋), Geum(錦), Chaebaek(彩帛), Osaek-geumchae(五色錦彩), Geumbaek(錦帛), Geumsam(錦衫), Ma(麻), Neung(綾), Geum-su-neung-ra(錦繡綾羅), Poh(布), Daecho, Bira-geumjeom(緋羅金點), Gyeon(絹). Japchoe(雜綵), Robtyeom(羅緋染). Chimilpoh(緻密布), Gi(綺) and Whan(紈), and they had colors such as brown black(緇), black(黑), purple(紫), yellow(黃), blue(碧), clear white(素), white(白), five colors(五色). There is substantial amoung of report on Buddhism, and the terms used for Buddhist clothing included Beobeui(法衣), Nabeui(衲衣), Bangpoh(方袍), Gasa(袈裟) and Yueui(由衣). It is also ascertained that Gasa had a variety of Bira-geumjeom-gasa(緋羅點袈裟), Manap-gasa(摩納袈裟) and Geumra-gasa(金羅袈裟).

A study on the contents for education of conventionality in YEONJEONG GASA (연정가사(戀情歌辭)에 나타난 상투성(常套性)의 교육 내용 연구)

  • Lee, Joo-young
    • Journal of Korean Classical Literature and Education
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    • no.15
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    • pp.139-161
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    • 2008
  • This study examined the texts of the Late Joseon Dynasty's YEONJEONG GASA, whose authors are unknown, to list the contents of education which can be provided by conventional elements. Most existing discussions on expression education have focused on creativity. However, the perspective creativity based on the concepts of modern individualism and difference believes that creation can be done only by special professionals with inborn abilities and is likely to jeopardize the possibility and need of expression education to reduce the scope of expression education. On the other hand, conventionality has been related to "cliche" and "old-fashioned" and considered the counterpoint of creativity with lacking originality and aesthetical or educational valuelessness. Nevertheless, conventionality is valuable as cultural custom in that it is closely related to the contemporary culture, thoughts, and language. Also, it is the power that creates new text and induces sympathy in receivers. The Late Joseon Dynasty's YEONJEONG GASA by unknown authors include typicality of circumstances, schematism of emotion, and formula in conventionality. The positive aspects of conventionality - familiarity and intimacy - are the basis of sympathy and become the power that encourages the public to participate in creation and enjoyment within the frame of creativity. Ultimately, conventionality of YEONJEONG GASA allows learners to experience the pleasure of expression and has an important meaning for expression education as it provides them with the opportunity to perform expressions to extend sympathy.

A Study on the Space Constitution of Jungja in the Gasa Literature Area (歌辭文學圈 亭子建築의 空間構成에 관한 연구)

  • 최선희
    • Journal of the Korean housing association
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    • v.14 no.1
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    • pp.95-105
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    • 2003
  • This study is to investigate the characteristics of space constitution by analyzing the Jungja in the Gasa (an old form of Korean verse) literature area. These Jungja architectures were composed at Damyang-gun and all over Mt. Moodeung in Chosun dynasty. It can be found several characteristics through 10 Jungja architectures. As a result of analysis, the conclusion of research is as follows. 1. There is a spatial function of Byulsu where the daily life can be managed. 2. The development of introduction part induces a concept of private space. 3. It has structures with openings that can form the various constitution of space. 4. There are heating facilities that people can spend their time in four seasons.

On the Newly-Discovered Gasa-Style (새로 발굴한 가사체 <춘향전>에 대하여)

  • Gu, Sa-Whae;Lee, Su-Jin;Yang, Jee-Uk
    • (The)Study of the Eastern Classic
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    • no.34
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    • pp.387-414
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    • 2009
  • This paper seeks to provide an overview on the newly-discovered manuscript in gasa style. It is significant in that the entire in gasa style has not been seen before, although occasionally scripts incorporate sijo or gasa as inserted songs. The author of this manuscript is believed to be Bae Hyung (裵珩: ?-?), who lived in Daegachon, Yongdu-Myun, Sunchon-Gun in Jeonra-Namdo Province. It is estimated that the manuscript was written in April of King Gojong 37 years (year 1900). This , so-called the Yang Jee-Uk Collection Script, applies Samdan Pyunun Daewoo Method (三段片言對偶法), using Jongbae style (縱排法) to over 27 pagesof the book. The author seems to have collected the main scenes of and changed them into gasa style. It is also possible to postulate that the author might have simply divided the lines to make it resemble the existing gasa style, as the original was already in the form of lyrics. There are a few mistakes found in the manuscript. They seem to have been made while the author was recording the sung P'ansori, rather than while copying from a different manuscript.

Global Acoustic Design Sensitivity Analysis using Direct BEM and Continuum DSA (직접 경계요소법과 연속계 설계민감도 해석법을 이용한 소음 설계 민감도 해석)

  • 왕세명;이제원
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 1998.04a
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    • pp.81-87
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    • 1998
  • In this paper, a global acoustic design sensitivity analysis (DSA) of field point pressure with respect to structural sizing design variables is developed. Firstly acoustic sensitivity is formulated and implemented numerically. And it is combined with continuum structural sensitivity to obtain the global acoustic, design sensitivity. For this procedure, GASA (global acoustic design sensitivity analyzer) has been developed. A half scale of automobile cavity model is considered in this paper. In order to confirm accuracy of the results of global acoustic DSA obtained by GASA, it is compared with the result of central finite difference method. In order to reduce computation time, Rayleigh approximated solution is evaluated and compared with the solution which used every nodal velocities. Also the acoustic optimization procedure is performed using design sensitivities. From these numerical studies, it can be shown that global acoustic DSA is a useful tool to improve acoustic problems.

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A Study on Blind Nonlinear Channel Equalization using Modified Fuzzy C-Means (개선된 퍼지 클러스터 알고리즘을 이용한 블라인드 비선형 채널등화에 관한 연구)

  • Park, Sung-Dae;Han, Soo-Whan
    • Journal of Korea Multimedia Society
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    • v.10 no.10
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    • pp.1284-1294
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    • 2007
  • In this paper, a blind nonlinear channel equalization is implemented by using a Modified Fuzzy C-Means (MFCM) algorithm. The proposed MFCM searches the optimal channel output states of a nonlinear channel from the received symbols, based on the Bayesian likelihood fitness function instead of a conventional Euclidean distance measure. Next, the desired channel states of a nonlinear channel are constructed with the elements of estimated channel output states, and placed at the center of a Radial Basis Function (RBF) equalizer to reconstruct transmitted symbols. In the simulations, binary signals are generated at random with Gaussian noise. The performance of the proposed method is compared with that of a hybrid genetic algorithm (GA merged with simulated annealing (SA): GASA), and the relatively high accuracy and fast searching speed are achieved.

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Performance Improvement on Fuzzy C-Means Algorithm for Nonlinear Blind Channel Equalization (비선형 블라인드 채널등화를 위한 퍼지 클러스터 알고리즘의 성능개선)

  • Park, Seong-Dae;Han, Su-Hwan
    • Proceedings of the Korea Inteligent Information System Society Conference
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    • 2007.05a
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    • pp.382-388
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    • 2007
  • In this paper, a modified Fuzzy C-Means (MFCM) algorithm is presented for nonlinear blind channel equalization. The proposed MFCM searches the optimal channel output states of a nonlinear channel from the received symbols, based on the Bayesian likelihood fitness function instead of a conventional Euclidean distance measure. Next, the desired channel states of a nonlinear channel are constructed with the elements of estimated channel output states, and placed at the center of a Radial Basis Function (RBF) equalizer to reconstruct transmitted symbols. In the simulations, binary signals are generated at random with Gaussian noise. The performance of the proposed method is compared with that of a hybrid genetic algorithm (GA merged with simulated annealing (SA): GASA), and the relatively high accuracy and fast searching speed are achieved.

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