• Title/Summary/Keyword: K3 리그

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Evaluating the quality of baseball pitch using PITCHf/x (PITCHf/x를 이용한 투구의 질 평가)

  • Park, Sungmin;Jang, Woncheol
    • The Korean Journal of Applied Statistics
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    • v.33 no.2
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    • pp.171-184
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    • 2020
  • Major League Baseball (MLB) records and releases the trajectory data for every baseball pitch, called the PITCHf/x, using three high-speed cameras installed in every stadium. In a previous study, the quality of the pitch was assessed as the expected number of bases yielded using PITCHf/x data. However, the number of bases yielded does not always lead to baseball scores, or runs. In this paper, we assess the quality of a pitch by combining baseball analytics metric Run Expectancy and Run Value using a Random Forests model. We compare the quality of pitches evaluated with Run Value to the quality of pitches evaluated with the expected number of bases yielded.

Analyzing records of Korean pro-basketball using general linear model (일반선형모형을 적용한 한국남자프로농구 경기기록분석 : 2014-2015 정규리그)

  • Kim, Sae Hyung
    • Journal of the Korean Data and Information Science Society
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    • v.26 no.4
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    • pp.957-970
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    • 2015
  • The purpose of this study was to analyze records of Korean pro-basketball using general linear model (two-way ANOVA and hierarchical multiple regression analysis). Korea Basketball League (KBL) informed the records (2014-2015 season) of this study. The eight variables (TA, 2PA, 3PA, 2P, 3P, Ast, TFB, CH) were selected in content validity. SPSS program was used to analyze general linear model. All alpha level was set at 0.05. Major results were as follow. 3PA had significant interaction effect between victory & defeat variable and home & away variable. Victory teams showed that 3PA was higher in home games than away games, and defeat teams was the other. 2PA, AS, TFB, and CH were selected significant variables affecting victory and defeat. In result of hierarchical regression, Ast had significant moderation effect between 3PA and TS. TFB also had significant moderation effect between AS between 2P. The other construct (Ast between 2PA and TS; TFB between AS between 3P) had no significant moderation effect. In the effect of 2PA, 3PA and Ast to TS, CH also had no significant moderation effect.

Effect of Lignans from Schisandra chinensis Baillon on Seed Germination in Pepper (오미자 (Schisandra chinensis Baillon)로 부터 추출한 리그난이 고추종자의 발아에 미치는 영향)

  • Shin, Woo-Jung;Lee, You-Jin;Son, Beung-Gu;Kang, Jum-Soon;Lee, Yong-Jae;Park, Young-Hoon;Lee, Young-Geun;Kim, Yong-Cheol;Choi, In-Soo;Kim, Sun-Tae;Choi, Young-Whan
    • Journal of Life Science
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    • v.20 no.3
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    • pp.430-436
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    • 2010
  • In this study, the effects of dibenzocyclooctadiene on seed germination were investigated in pepper. Four $C_{18}$ dibenzocyclooctadiene lignans - schisandrin (1143.7 mg), schisandrin C (317.3 mg), gomisin A (261.4 mg) and gomisin N (213.4 mg) - were isolated from hexane extracts of the fruits of Schisandra chinensis. The molecular structures of the four lignans were elucidated based on spectroscopic analyses including 1D NMR experiments, and bi comparing their spectroscopic data with those of previous literatures. Seeds were immersed in $10^{-5}\;M$ schisandrin, $10^{-6}\;M$ schisandrin C and $10^{-7}\;M$ gomisin A and gomisin N for 1 hr and incubated at $25^{\circ}C$ in the dark for germination. Compared to untreated control, treatment with schisandrin C and gomisin A suppressed seed germination at 48 hrs after incubation, whereas treatment with gomisin N increased germination rate at 48 hrs after incubation. The results of the germination activity of the lignans from S. chinensis confirm their potential plant growth role, and the relative natural abundances of these metabolites suggest their potential use as natural plant growth regulators.

An Analysis on the Media Reports Frames regarding Special Naturalization of Foreign Athletes (외국인 운동선수 특별귀화 관련 언론보도 프레임 분석)

  • Lee, Jangwon;Lim, Seungyup
    • Journal of the Korea Convergence Society
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    • v.8 no.3
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    • pp.295-306
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    • 2017
  • The purpose of the study was to explore media frames and its contents regarding foreign athletes' naturalization to Korea. For data, 101 media reports from the year of 2014 to 2016 were collected and analyzed. As results, in the simple-fact-report frame, facts regarding foreign athletes' naturalization process and results of the matches were reported. In the economic frame, legitimacy of the naturalization was supported by emphasizing its benefits. In the humane-interest frame, personal history and difficulty as foreign athletes were described. In the conflict frame, negative effects by the foreign athletes' naturalization were mainly reported.. In the morality/responsibility attribution frame, Chelsey Lee's document forgery case was mostly highlighted that later issued naturalized athletes' morality and following legal actions.

Spray Drying of Lignocellulose Nanofibril (LCNF) and Characterization of Spray-dried LCNF (리그노셀룰로오스 나노피브릴의 분무건조 및 건조물의 특성)

  • Park, Chan-Woo;Han, Song-Yi;Lee, Seung-Hwan
    • Journal of the Korean Wood Science and Technology
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    • v.45 no.3
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    • pp.288-296
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    • 2017
  • In this study, the effect of spray-drying conditions and surfactant addition on the spray-drying yield, morphological characterization, size distribution and re-dispersity in water of spray-dried lignocellulose nanofibril (LCNF) were investigated. The freeze-dried LCNF after solvent exchange had linear fiber morphology with a diameter of 70-300 nm, and the spray-dried LCNF showed rod-like particle morphology. The spray-drying yield and particle size of spary-dried LCNF at $140^{\circ}C$ was highest and smallest, respectively. As LCNF concentration and blowing rate decreased and increased, respectively, the spray-drying yield and particle size were increased. The highest spray-drying yield was found at distearyl dimethyl ammonium chloride (DDAC) addition of 10 phr at $140^{\circ}C$. As the particle size decreased and the DDAC content increased, filtration time of spray-dried LCNF in water was decreased and increased, respectively.

Effects of Lignan Compound of Sesame on LPS-induced Nitric Oxide Generation in Murine Macrophage RAW 264.7 Cells (참깨의 리그난 화합물의 항염증 효과)

  • Lee, Hwa-Jeong;Son, Dong-Ju;Kang, Myung-Hwa;Lee, Bum-Chun;Hong, Jin-Tae
    • Journal of the Society of Cosmetic Scientists of Korea
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    • v.32 no.3 s.58
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    • pp.173-180
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    • 2006
  • Sesame (Sesamum indicum L.), one of the oldest oilseed crops, has been known to posses antioxidative and inflammatory effects. This seed contains lignan compounds such as sesamin, sesamol, sesaminol, sesaminol diglucosides (SDG), and sesaminol triglucosides (STG). Sesamin, a major lignan in sesame, displayed several biological activities including a protective effects against oxidative damage in the skin. In the present study, we investigated the effect of sesamin, sesamol, sesaminol, SDG, and STG, on nitric oxide (NO) induction and inducible nitric oxide synthane (iNOS) and cyclooxygenases-2 (COX-2) expression in lipopolysaccharides (LPS)-treated RAW 264.7 cells. The results showed that sesamol and sesaminol significantly inhibited NO generation but they were also cytotoxicity however, sesamin effectively inhibited NO production ($IC_{50}: 64{\mu}M$) without my cytotoxic effect in LPS-stimulated macrophage RAW 264.7 cells. In further study, it was founded that sesamin inhibited the expression of inducible nitric oxide synthase but not COX-2 expression. These results suggest that sesamin may be useful for improvements of the inflammatory diseases.

Quantitative Determination of Lignans from Schizandra chinensis by HPLC (HPLC에 의한 오미자 리그난 성분의 정량분석)

  • Koo, Dong-Chil;Suh, Won-Se;Baek, So-Yoon;Shim, Sang-Hee
    • Korean Journal of Pharmacognosy
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    • v.42 no.3
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    • pp.233-239
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    • 2011
  • A reversed phase HPLC method was established for quantitative determination of lignans including schizandrin (1), gomisin A (2), deoxyschizandrin (3), gomisin N (4), and wuweizisu C (5) from Schizandra chinensis using a binary gradient of acetonitrile and water as a mobile phase with UV detection at 254nm. In result, contents of schizandrin (1), gomisin A (2), deoxyschizandrin (3), gomisin N (4), and wuweizisu C (5) in Schizandra chinensis from Moonkyung were 8.41${\pm}$0.30, 3.01${\pm}$0.13, 1.06${\pm}$0.05, 7.69${\pm}$0.30, and 1.68${\pm}$0.06 mg/g, respectively.

Analysis of Football Fans' Uniform Consumption: Before and After Son Heung-Min's Transfer to Tottenham Hotspur FC (국내 프로축구 팬들의 유니폼 소비 분석: 손흥민의 토트넘 홋스퍼 FC 이적 전후 비교)

  • Choi, Yeong-Hyeon;Lee, Kyu-Hye
    • Journal of Intelligence and Information Systems
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    • v.26 no.3
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    • pp.91-108
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    • 2020
  • Korea's famous soccer players are steadily performing well in international leagues, which led to higher interests of Korean fans in the international leagues. Reflecting the growing social phenomenon of rising interests on international leagues by Korean fans, the study examined the overall consumer perception in the consumption of uniform by domestic soccer fans and compared the changes in perception following the transfers of the players. Among others, the paper examined the consumer perception and purchase factors of soccer fans shown in social media, focusing on periods before and after the recruitment of Heung-Min Son to English Premier League's Tottenham Football Club. To this end, the EPL uniform is the collection keyword the paper utilized and collected consumer postings from domestic website and social media via Python 3.7, and analyzed them using Ucinet 6, NodeXL 1.0.1, and SPSS 25.0 programs. The results of this study can be summarized as follows. First, the uniform of the club that consistently topped the league, has been gaining attention as a popular uniform, and the players' performance, and the players' position have been identified as key factors in the purchase and search of professional football uniforms. In the case of the club, the actual ranking and whether the league won are shown to be important factors in the purchase and search of professional soccer uniforms. The club's emblem and the sponsor logo that will be attached to the uniform are also factors of interest to consumers. In addition, in the decision making process of purchase of a uniform by professional soccer fan, uniform's form, marking, authenticity, and sponsors are found to be more important than price, design, size, and logo. The official online store has emerged as a major purchasing channel, followed by gifts for friends or requests from acquaintances when someone travels to the United Kingdom. Second, a classification of key control categories through the convergence of iteration correlation analysis and Clauset-Newman-Moore clustering algorithm shows differences in the classification of individual groups, but groups that include the EPL's club and player keywords are identified as the key topics in relation to professional football uniforms. Third, between 2002 and 2006, the central theme for professional football uniforms was World Cup and English Premier League, but from 2012 to 2015, the focus has shifted to more interest of domestic and international players in the English Premier League. The subject has changed to the uniform itself from this time on. In this context, the paper can confirm that the major issues regarding the uniforms of professional soccer players have changed since Ji-Sung Park's transfer to Manchester United, and Sung-Yong Ki, Chung-Yong Lee, and Heung-Min Son's good performances in these leagues. The paper also identified that the uniforms of the clubs to which the players have transferred to are of interest. Fourth, both male and female consumers are showing increasing interest in Son's league, the English Premier League, which Tottenham FC belongs to. In particular, the increasing interest in Son has shown a tendency to increase interest in football uniforms for female consumers. This study presents a variety of researches on sports consumption and has value as a consumer study by identifying unique consumption patterns. It is meaningful in that the accuracy of the interpretation has been enhanced by using a cluster analysis via convergence of iteration correlation analysis and Clauset-Newman-Moore clustering algorithm to identify the main topics. Based on the results of this study, the clubs will be able to maximize its profits and maintain good relationships with fans by identifying key drivers of consumer awareness and purchasing for professional soccer fans and establishing an effective marketing strategy.

Estimating the determinants of victory and defeat through analyzing records of Korean pro-basketball (한국남자프로농구 경기기록 분석을 통한 승패결정요인 추정: 2010-2011시즌, 2011-2012시즌 정규리그 기록 적용)

  • Kim, Sae-Hyung;Lee, Jun-Woo;Lee, Mi-Sook
    • Journal of the Korean Data and Information Science Society
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    • v.23 no.5
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    • pp.993-1003
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    • 2012
  • The purpose of this study was to estimate the determinants of victory and defeat through analyzing records of Korean men pro-basketball. Statistical models of victory and defeat were established by collecting present basketball records (2010-2011, 2011-2012 season). Korea Basketball League (KBL) informs records of every pro-basketball game data. The six offence variables (2P%, 3P%, FT%, OR, AS, TO), and the four defense variables (DR, ST, GD, BS) were used in this study. PASW program was used for logistic regression and Answer Tree program was used for the decision tree. All significance levels were set at .05. Major results were as follows. In the logistic regression, 2P%, 3P%, and TO were three offense variables significantly affecting victory and defeat, and DR, ST, and BS were three significant defense variables. Offensive variables 2P%, 3P%, TO, and AS are used in constructing the decision tree. The highest percentage of victory was 80.85% when 2P% was in 51%-58%, 3P% was more than 31 percent, and TO was less than 11 times. In the decision tree of the defence variables, the highest percentage of victory was 94.12% when DR was more than 24, ST was more than six, and BS was more than two times.

System Implementation for Generating Virtual View Digital Holographic using Vertical Rig (수직 리그를 이용한 임의시점 디지털 홀로그래픽 생성 시스템 구현)

  • Koo, Ja-Myung;Lee, Yoon-Hyuk;Seo, Young-Ho;Kim, Dong-Wook
    • Proceedings of the Korean Society of Broadcast Engineers Conference
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    • 2012.11a
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    • pp.46-49
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    • 2012
  • 본 논문에서는 3차원 입체 비디오처리 기술의 최종목표인 디지털 홀로그램을 생성하는데 필요한 객체의 좌표와 색상정보가 들어있는 같은 시점과 해상도인 RGB 영상과 깊이 영상을 획득하여 가상 시점의 디지털 홀로그램을 생성하는 시스템을 제안한다. 먼저, 가시광선과 적외선의 파장을 이용하여 파장에 따라 투과율이 달라지는 콜드 미러를 사용하여 각각의 시점이 같은 다시점 RGB와 깊이 영상을 얻는다. 카메라 시스템이 갖는 다양한 렌즈 왜곡을 없애기 위한 보정 과정을 거친 후에 해상도가 서로 틀린 RGB 영상과 깊이 영상의 해상도를 같게 조절한다. 그 다음, DIBR(Depth Image Based Rendering) 알고리즘을 이용하여 원하는 가상 시점의 깊이 정보와 RGB 영상을 생성한다. 그리고 깊이 정보를 이용하여 디지털 홀로그램으로 구현할 객체만을 추출한다. 마지막으로 컴퓨터 생성 홀로그램 (computer-generated hologram, CGH) 알고리즘을 이용하여 추출한 가상 시점의 객체를 디지털 홀로그램으로 변환한다.

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