• Title/Summary/Keyword: Ga-sa

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SA-selection-based Genetic Algorithm for the Design of Fuzzy Controller

  • Han Chang-Wook;Park Jung-Il
    • International Journal of Control, Automation, and Systems
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    • v.3 no.2
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    • pp.236-243
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    • 2005
  • This paper presents a new stochastic approach for solving combinatorial optimization problems by using a new selection method, i.e. SA-selection, in genetic algorithm (GA). This approach combines GA with simulated annealing (SA) to improve the performance of GA. GA and SA have complementary strengths and weaknesses. While GA explores the search space by means of population of search points, it suffers from poor convergence properties. SA, by contrast, has good convergence properties, but it cannot explore the search space by means of population. However, SA does employ a completely local selection strategy where the current candidate and the new modification are evaluated and compared. To verify the effectiveness of the proposed method, the optimization of a fuzzy controller for balancing an inverted pendulum on a cart is considered.

A Study on the ${\ulcorner}$DongMuSunSaSaSangYakSungSangHumGoGa${\lrcorner}$'s Origin and Meaning ("동무선사사상약성상험고가(東武先師四象藥性嘗驗古歌)"의 연원(淵源)과 의의(意義)에 대한 연구(硏究))

  • Park, Seong-Sik
    • Journal of Sasang Constitutional Medicine
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    • v.14 no.2
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    • pp.1-9
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    • 2002
  • I think that the study on the ${\ulcorner}$DongMuSunSaSaSangYakSungSangHumGoGa${\lrcorner}$ of ${\ulcorner}$DongMuYooGo${\lrcorner}$ is basic material explaining the character of sasang-herb and prescription. Through the study on the ${\ulcorner}$DongMuSunSaSaSangYakSungSangHumGoGa${\lrcorner}$'s origin and meaning, I can take the result as follows. The first, that is composed of total 237 herbs of 90 spleen-herb (Soeumin-herb), 61 kidney-herb (Soyangin-herb), 67 lung-herb (Taeeumin-herb) and 19 liver-herb (Taeyangin-herb). The second, the origin of that is ${\ulcorner}$JeJungSinPyun${\lrcorner}$, ${\ulcorner}$BangYakHapPyun${\lrcorner}$ and ${\ulcorner}$EuiHakIpMum${\lrcorner}$. And DongMu classified traditional YakSungGa as spleen-herb, kidney-herb, lung-herb and liver-herb which is suitable to Sasangin, not created that. So we can know that the first understanding for DongMu' s herb is focused on the traditional YakSungGa. The third, DongMu's unique terminology of spleen-herb, kidney-herb, lung-herb and liver herb show his sight of symptom, disease and pharmacology, that is focused on small JangBu. The forth, through herb-nature gathered from traditional YakSungGa, that purposed to classfying each constitutional herb. So we can know his idea that the choice of herb is not in general efficacy but in personal constitution. As mentioned abovet, that can refer to an herbal argument of DongMu and ${\ulcorner}$DongMuYooGoYakSungGa${\lrcorner}$ that make known to be common can refer to an prescriptional argument of DongMu.

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Antioxidant Effects of GaMiHyangSaYukGunJaTang against Gastric Mucosal Lesions induced by Indomethacin (가미향사육군자탕(加味香砂六君子湯)의 Indomethacin 유도 위점막손상 에 미치는 항산화효과(抗酸化效果))

  • Kim, Kyung-Sun;Shin, Heung-Mook
    • The Journal of Korean Medicine
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    • v.19 no.1
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    • pp.165-178
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    • 1998
  • This study was carried out to investigate the protective effects of GaMiHyangSaYukGunJaTang on gastric mucosal lesions caused by indomethacin in rats.The test group was injected with indomethacin after the oral administration of GaMiHyangSaYukGunJaTang, while the control group was injected only with indomethacin. The lipid peroxidation level increased considerably in the control group, but superoxide disnurtase(SOD), catalase and glutathione(GSH) levels remarkably decreased. The following effects induced by indomethacin were observed in the stomach of the control group; mucosa hemoIThagic infarct, mucosa cell necrosis, leukocyte appearance, mucosa hemorrhagic erosion and gastric pit disawearance. In the test group, lipid peroxides level was significantly reduced compared with the control group While SOD, catalase and GSH levels considerably increased. The following effects were also observed in the stomach of the test group; mucosa hemorrhagic infarct, mucosa cell necrosis, leukocyte appearance and mucosa hemorrhagic erosion occured far less and gastric pit disappearance was not observed at all. This results suggest that GaMiHyangSaYukGunJaTang is effective in the remedy of gastric mucosal lesions as GaMiHyangSaYukGunJaTang suppresses the production of the lipid peroxides and free radicals induced by indomethacin and activates SOD, catalase and GSH.

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Influence of Plant Growth Regulator Application on Seed Germination of Dandelion (Taraxacum officinale) (식물생장조절물질 처리가 서양민들레 종자 발아에 미치는 영향)

  • Kim, Yoon Ha;Lee, In Jung
    • Weed & Turfgrass Science
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    • v.2 no.2
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    • pp.152-158
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    • 2013
  • Dandelion (Taraxacum officinale) is a member of family Asteraceae that grows all over the Korea. Recently, dandelion was cultivated for medicinal crops because of its positive medicinal effects. However, dandelion is considered as a troublesome weed in grass lawns of golf course and orchards. This study was conducted to investigate the effect of plant growth regulators [gibberellins ($GA_3$); kinetin; salicylic acid (SA); ethephon)] with different concentration on seed germination control of dandelion. Seed germination rates were increased in all concentration of $GA_3$ and kinetin treatment compared to control. In the 0.5 mM of ethephon application, seed germination rate was more increased than that of control while seed germination rate was reduced in 1.0 and 1.5 mM of ethephon treatments. Seed germination rate was significantly decreased with different SA dilutions compared to control. The germination rate was more reduced when SA was applied in combination with $GA_3$ than only SA treatments.

Design of optimal BPCGH using combination of GA and SA Algorithm (GA와 SA 알고리듬의 조합을 이용한 최적의 BPCGH의 설계)

  • 조창섭;김철수;김수중
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.28 no.5C
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    • pp.468-475
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    • 2003
  • In this Paper, we design an optimal binary phase computer generated hologram for Pattern generation using combined genetic algorithm and simulated annealing algorithm together. To design an optimal binary phase computer generated hologram, in searching process of the proposed method, the simple genetic algorithm is used to get an initial random transmittance function of simulated annealing algorithm. Computer simulation shows that the proposed algorithm has better performance than the genetic algorithm or simulated annealing algorithm of terms of diffraction efficiency

Growth and Flower Bud Induction in Strawberry 'Sulhyang' Runner Plant as Affected by Exogenous Application of Benzyladenine, Gibberellic Acid, and Salicylic Acid (벤질아데닌, 지베렐린산, 살리실산이 '설향' 딸기묘의 생장과 화아 유도에 미치는 영향)

  • Thi, Luc The;Nguyen, Quan Hoang;Park, Yoo Gyeong;Jeong, Byoung Ryong
    • Journal of Bio-Environment Control
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    • v.28 no.2
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    • pp.178-184
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    • 2019
  • Strawberry ($Fragaria{\times}ananassa$) is one of the most important and popular fruit crops in the world, and 'Sulhyang' is one of the principal cultivars cultivated in the Republic of Korea for the domestic market. The growth and flower induction in strawberry is the process which influences directly on fruit bearing and yield of this crop. In this study, effect of benzyladenine (BA), gibberellic acid ($GA_3$), and salicylic acid (SA) on growth and flower bud induction in strawberry 'Sulhyang' was investigated. The 3-week-old runner plants, grown in 21-cell propagation trays, were potted and cultivated in growth chambers with $25^{\circ}C/15^{\circ}C$ (day/night) temperatures, 70% relative humidity (RH), and light intensity of $300{\mu}mol{\cdot}m^{-2}{\cdot}s^{-1}$ photosynthetic photon flux density (PPFD) provided by white light emitting diodes (LEDs). The runner plants were treated with one of three concentrations, 0 (control), 100, and $200mg{\cdot}L^{-1}$ of BA, $GA_3$, or SA solution. The chemicals were sprayed two times on leaves of runner plants at an interval of two weeks. After 9 weeks the results showed that the application of all chemicals caused reduction of root length and chlorophyll (SPAD) content as compared to the control. The lowest chlorophyll (SPAD) content was recorded in plants treated with $GA_3$. However, the treatment of $200mg{\cdot}L^{-1}$ $GA_3$ promoted leaf area, leaf fresh weight, and plant fresh weight. The greatest flower induction (85%) and number of inflorescences (4.3 inflorescences per plant) were observed in the treatment of $200mg{\cdot}L^{-1}\;SA$, followed by $100mg{\cdot}L^{-1}\;SA$. Overall, results suggest that foliar application of $GA_3$ solution could accelerate plant growth, while foliar application of SA solution could induce hastened flowering. Further studies may be needed to find out the relationship between $GA_3$ and SA solutions treated in a combination, and the molecular mechanism involved in those responses observed.

FE MODEL UPDATING OF ROTOR SHAFT USING OPTIMIZATION TECHNIQUES (최적화 기법을 이용한 로터 축 유한요소모델 개선)

  • Kim, Yong-Han;Feng, Fu-Zhou;Yang, Bo-Suk
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2003.11a
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    • pp.104-108
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    • 2003
  • Finite element (FE) model updating is a procedure to minimize the differences between analytical and experimental results, which can be usually posed as an optimization problem. This paper aims to introduce a hybrid optimization algorithm (GA-SA), which consists of a Genetic algorithm (GA) stage and an Adaptive Simulated Annealing (ASA) stage, to FE model updating for a shrunk shaft. A good agreement of the first four natural frequencies has been achieved obtained from GASA based updated model (FEgasa) and experiment. In order to prove the validity of GA-SA, comparisons of natural frequencies obtained from the initial FE model (FEinit), GA based updated model (FEga) and ASA based updated model (FEasa) are carried out. Simultaneously, the FRF comparisons obtained from different FE models and experiment are also shown. It is concluded that the GA, ASA, GA-SA are powerful optimization techniques which can be successfully applied to FE model updating, the natural frequencies and FRF obtained from all the updated models show much better agreement with experiment than that obtained from FEinit model. However, FEgasa is proved to be the most reasonable FE model, and also FEasa model is better than FEga model.

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The enjoyment of way on Si-jo and Ga-sa in Joseon Dynasty (시조와 가사의 향유방식과 그 관련양상)

  • Ryoo, Hae-Choon
    • Sijohaknonchong
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    • v.44
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    • pp.165-195
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    • 2016
  • This paper is compare to the enjoyment of way on Si-jo and Ga-sa in Lyric poetry. Si-jo and Ga-sa were created in Joseon Dynasty. Si-jo and Ga-sa is the Lyric poetry in traditional genre, representing Korea. These forms include the lyric genre but have a difference between the fixed verse and the long-poem in Joseon Dynasty. However, the two genres are the two genres had opened the possibility of communication from the very beginning in terms of gentry layer is the main writers. Joseon Dynasty those who enjoy the fixed verse and the long-poem, the literature of singing songs and reciting literature, in terms of the principle of metaphor and metonymy rhetoric will reflect the era of awareness and enjoyment of contemporary perception of reality characters. It can be said that performing Si-jo and Ga-sa of enjoyment fashion and work to compare with realistic about the versification principles but check ahead a lot of data, and add to the task of finding a logic that can explain clearly remain. This paper will have to complement the many points made in an attempt to unravel the complex issues in an integrated and comprehensive on-pronged approach and enjoyment of the fixed verse and long-poem Si-jo and Ga-sa and similar expressions are writing and testing the various parties of the enjoyment of culture in today's era of change in the 21st century can be the compass to navigate a new world culture.

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Literature Study on Cough of Kum-won Sa Dae Ga (금원사대가(金元四大家)의 해수(咳嗽)에 대한 문헌적 고찰)

  • Son, Ji-Woo;Shin, Jo-Young;Jeong, Heon-Young;Lee, Si-Hyeong
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.20 no.6
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    • pp.1392-1417
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    • 2006
  • ‘Cough' can be developed by many causes and the first representative symptom for respiratory diseases which was first referenced in ${\ll}$So Mun${\cdot}$Hae Ron${\gg}$ (素問)${\cdot}$(咳論) and repeated in many medical books to date. Among those medical books, four representative men, Kum Won sa dae ga(金元四大家)- Yoo wan so(劉完素), Jang jong jung(張從政), Lee dong won(李東垣) and Ju jin hyeong(侏震亨), presented new ideas and opinions on rules of occurrence and transformation in disease due to prevalence of wars and febrile communicable diseases during the Kum-Won period(金元時代). I have concluded the following while researching the books of Kum Won sa dae ga(金元四大家).

Literature Study on Jaundice of Kum-Won Sa Dae Ga (금원사대가(金元四大家)의 황달(黃疸)에 대한 문헌적 고찰)

  • Song, Jeong-Ho;Kim, Soo-Sung;Kim, Byung-Min;Na, Min-Soo;Liu, Chiian-Hai;Yoon, Hyuk;Jeong, Heon-Young;Kim, Kang-San
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.22 no.6
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    • pp.1331-1346
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    • 2008
  • The aim of this study was to establish opinions of Kum Won Sa dea ga on jaundice and find out clinical significance. Contents dealing with jaundice were searched manually in works of Kum Won Sa dea ga. Those were translated into Korean and studied. Yoo wan so(劉完素) had opinion that jaundice is induced by dampness with heatness(濕熱) or dryness with heatness(濕熱) and should be treated with diuretics and laxatives. Jang jong jung(張從政) had opinion that jaundice is induced by spleen(脾) mainly and should be treated with diaphoretics, emetics, laxatives. Lee dong won(李東垣) had opinion that jaundice is induced by mistaken diaphoretics, dysfunction of spleen(脾), heatness(熱) and treatments should depend on six meridian pathways(六經). Ju jin hyeong(朱震亨) had opinion that jaundice is induced by dampness with heatness(濕熱) and coldness with dampness(濕熱) and should be treated with diuretics and detoxicant. Kum Won Sa dae ga thought jaundice in induced by dampness with heatness(濕熱) and explained pathology by the five viscera and the six entrails(五臟六腑). And they treated patients with jaundice according to etiologic source.