축구 경기력 요인의 포지션별 차이분석과 가중치 적용

홍성진 한국체육측정평가학회 2018 한국체육측정평가학회지 Vol.20 No.4

This research is aimed to proposing a player evaluation model that can be used in the field by analyzing actual game and applying the data based on methodology to evaluate the performance of soccer players. For this purpose, the following result are obtained by applying the factors and weights shown in the research conclusion of Hong Sung-jin (2017) to actual analysis data. First, the difference analysis results by each position for attack power (score, assist) show differences in scoring, not in assists. Assist can be seen as contributing to scoring in all different positions, regardless of position. Second, the analysis of differences in positions about basic skills (shooting, passing, and dribbling) all shows statistical differences. The post-verification test show no differences between a forward and a midfielder in shooting. In other words, a forward and midfielder can be considered the same position in shooting. In the pass, the team show up in order as a defender, midfielder, and striker. In dribbling, player tries a lot in order as a striker, midfielder, and defender. Third, the analysis of differences in positions of defense (tackle, interceptor, clearing and block) show statistical differences in tackle, clearing and block, and no difference in intercept. Look at the post-verification test, there are no differences between a forward and a midfielder in tackle, clearing and block. In other words, It can be considered as same position. In the meantime, it was concluded that the intercept is working in all positions. Fourth, the analysis of the difference by position in contribution (air ball competition, secondary ball acquisition) showed a statistical difference in the air ball competition, and the second ball has no difference. In particular, the midfielders were the lowest, strikers trying the most air ball competition. As a result Every position tries to take a second ball. Fifth, after analyzing the total score with applying weights, midfielders show highest score. The score of offense defence occupied highest possesion, followed by the forward. In other words, the team could be analasys that used wingback's overlapping or cross a lot. In terms of basic skill, defense, and contribution, midfielders all conclude high scores. It can be seen as the basis for showing the level and importance of midfielders in university football. 이 연구는 축구 선수의 포지션별 차이를 규명하고 가중치 적용을 위한 방법론을 토대로 선수평가 모델을 제시하는데 목적이 있다. 이를 위해 홍성진과 이기봉(2017)의 연구결과에 나타난 요인과 가중치를 실제 분석데이터에 적용하여 다음과 같은 결론을 얻었다. 첫째, 공격력(득점, 도움)에 대한 포지션별 차이분석 결과는 득점에서 차이가 나타났으며, 도움에서는 나타나지 않았다. 도움은 포지션에 상관없이 다양하게 모든 위치에서 득점에 기여할 수 있다고 볼 수 있다. 둘째, 기본능력(슈팅, 패스, 드리블)에 대한 포지션별 차이 분석 결과 모두 통계적 차이가 나타났다. 사후검증을 살펴보면 슈팅에서 공격수와 미드필더의 차이가 나타나지 않았다. 즉, 공격수와 미드필더는 슈팅에 있어 같은 포지션이라고 봐도 된다는 것이다. 패스에서는 수비수, 미드필더, 공격수 순으로 나타났다. 드리블에서는 공격수, 미드필더, 수비수 순으로 많이 시도하는 것으로 나타났다. 셋째, 수비력(태클, 인터셉터, 클리어링, 블락)에 대한 포지션별 차이분석 결과는 태클, 클리어링, 블락에서 통계적 차이를 보였으며, 인터셉터는 차이가 나타나지 않았다. 사후검증을 살펴보면 태클, 클리어링, 블락에서 공격수와 미드필더는 차이가 없었다. 즉 이 요인에서는 같은 포지션으로 봐도 된다는 것이다. 한편 인터셉터는 모든 포지션에 걸쳐 노력하고 있다는 결론을 얻었다. 넷째, 기여도(공중볼경합, 세컨볼획득)에 대한 포지션별 차이분석 결과 공중볼경합에서 통계적 차이를 보였으며, 세컨볼획득은 차이가 나타나지 않았다. 특히, 공중볼 경합은 공격수가 가장 많이 시도하는 것으로 나타났으며, 미드필더가 가장 낮았다. 세컨볼은 전 포지션이 같이 노력한다는 결과로 보여진다. 다섯째, 가중치를 적용하여 총점을 분석해본 결과 미드필더들이 높은 점수를 보였다. 공격력의 점수에서는 수비수 가장 높게 나타났으며, 다음으로 공격수 순으로 나타났다. 즉, 이 팀은 윙백의 오버래핑이나 크로스를 많이 활용하는 팀으로 볼 수 있었다. 기본능력, 수비력, 기여도에서는 모두 미드필더들의 점수가 높은 분포를 보였다. 이는 대학축구에서 미드필더들의 활동량과 중요성을 나타내는 근거로 볼 수 있다.

재건축사업 및 가로주택정비사업에서의 공공사업시행방식 적용에 따른 법적 쟁점:2･4대책에 따른 수용과 매도청구의 경계 문제

홍성진 한국토지공법학회 2021 한국토지공법학회 학술대회 Vol.- No.122

도심부 도로 재비산먼지 농도 추정을 위한 기초 연구

홍성진,유호준,연규민,김인태 한국도로학회 2020 한국도로학회논문집 Vol.22 No.2

PURPOSES : The purpose of this fundamental study is to estimate the concentration of resuspended road dust in urban areas. This involves examining and measuring the factors that affect the dust concentration and measuring these factors and the concentration directly and indirectly by analyzing the factor-effect relationship of the dust in actual operation. METHODS : From the literature review, the factors that influence resuspended road dust, including traffic, environment, and weather data of roads and their relationship analysis were obtained to determine the effects of each element on resuspended road dust. The data characteristics and the quantitative changes in the factors when a high concentration of resuspended road dust is generated are analyzed for each condition. The concentrations of the resuspended dust are presented from the perspective of each factor. RESULTS : When the vehicle speed increased from 60 to 80 km/h, the measured resuspended dust concentration increased by 8㎍/m3 on the average. When the traffic was grouped, the resuspended concentration at 1200-1400 veh/h was 15.84㎍/m3 higher than that of 500-800 veh/h. A high concentration of 60㎍/m3 or more was generated in the SCL high and middle sections, and a high concentration of 10㎍/m3 or more was generated in the SCL low section. Eight cases were observed in the SCL high and middle section at an intense atmospheric wind speed of 3 m/s or more than the SCL level of zero cases. A high concentration of 89.8㎍/m3 resuspended dust was observed after 31 h of rainfall, and the dust concentration gradually decreased by over 50 h. Hence, the passing time after the rainfall, SCL and wind speed, traffic and vehicle speed, and air background (observation) concentration, all have a direct effect on the resuspended dust concentration. Atmospheric temperature and relative humidity have a significant effect on atmospheric dust concentration. CONCLUSIONS : The quantitative indicators of the factors using an estimation model of resuspended road dust in urban areas can be obtained if the conditions for high concentrations of resuspended dust are established using the quantitative relationship of the resuspended road dust factors presented in this study.

Coronary Artery Aneurysm after Second-Generation Drug-Eluting Stent Implantation

홍성진,김효은,안철민,김중선,김병극,고영국,홍범기,최동훈,장양수,홍명기 연세대학교의과대학 2019 Yonsei medical journal Vol.60 No.9

Purpose: We evaluated the incidence, predictors, and prognosis of coronary artery aneurysm (CAA) after second-generationdrug-eluting stent (DES) implantation. Materials and Methods: A total of 976 consecutive patients (1245 lesions) who underwent follow-up angiography after secondgenerationDES implantation were analyzed. Incidence and predictors of CAA were assessed, and clinical prognosis was comparedwith 34 cases of CAA after first-generation DES implantation using previous CAA registry data. Results: All 10 cases of CAA (0.80% per lesion) in 10 patients (1.02% per patient) were detected at follow up. Compared to lesionswithout CAA, those with CAA had greater involvement of the proximal segment (90% vs. 51%, p=0.014), a higher proportion ofpre-intervention, a Thrombolysis in Myocardial Infarction score of 0 or 1 flow (80% vs. 16%, p<0.001), more chronic total occlusions(40% vs. 10%, p<0.001), and longer implanted stents (41.9±23.2 mm vs. 28.8±14.8 mm, p=0.006). As for CAA morphology,instances of CAA after second-generation DES were predominantly the single fusiform type (90%), whereas instances of CAA afterfirst-generation DES were multiple saccular (47%) and single saccular (35%) types (p<0.001). Myocardial infarction with stentthrombosis occurred in 5 patients with CAA after first-generation DES (15%), and no adverse events were observed in patientswith CAA after second-generation DES over a median follow-up duration of 4.3 years (p=0.047, log-rank). Conclusion: Although CAAs after second-generation DES implantation were detected at a similar incidence to that for CAAs afterfirst-generation DES implantation, second-generation DES-related CAAs had different morphologies and more benign clinicaloutcomes versus first-generation DES-related CAAs.

규소 고분자 복합체를 이용한 반응소결 질화규소

홍성진,안효창,김득중,Hong, Sung-Jin,Ahn, Hyo-Chang,Kim, Deug-Joong 한국세라믹학회 2010 한국세라믹학회지 Vol.47 No.6

Reaction-bonded $Si_3N_4$ has cost-reduction merit because inexpensive silicon powder was used as a start material. But its density was not so high enough to be used for structural materials. So the sintered reaction-bonded $Si_3N_4$techniques were developed to solve the low density problem. In this study the sintered reaction-bonded $Si_3N_4$ manufacturing method by using polymer precursor which recently attained significant interest owing to the good shaping and processing ability was proposed. The formations, properties of reaction-bonded $Si_3N_4$ from silicon and polysilazane mixture were investigated. High density reaction-bonded $Si_3N_4$ was manufactured from silicon and silicon-containing preceramic polymers and post-sintering technique. The mixtures of silicon powder and polysilazane were prepared and reaction sintered in $N_2$ atmosphere at $1350^{\circ}C$ and post-sintered at 1600~$1950^{\circ}C$. Density and phase were analyzed and correlated to the resulting material properties.

MFS TFT Device Modeling and Simulation of the MFS TFT LCD Characteristics

홍성진,최종선,이신두,김진홍 한국물리학회 2002 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.41 No.4

Ferroelectric materials and devices have been modeled and simulated to apply to a memoryretentive- type active matrix liquid crystal displays (AMLCDs). Our study has focused on the feasibility simulations of ferroelectric capacitors, metal ferroelectric semiconductor thin lm transistors( MFS TFTs) and AMLCD pixels. The ferroelectric capacitor model was based on a universal semi-empirical model, which was able to explain the physical phenomena of ferroelectric materials. The quivalent circuit of the ferroelectric capacitor consisted of a non-linear capacitor, a non-linear resistor, and a linear capacitor. An APLAC was used to implement the non-linear circuit components of the ferroelectric capacitor and MFS TFT. The MFS TFT was modeled by combining the ferroelectric capacitor and the Bsim3 MOSFET of the APLAC. Obvious hysterisis characteristics were simulated in the transfer characteristics of the MFS TFT due to the eect of the ferroelectric gate insulator in the MFS TFT. The operational characteristics of an AMLCD pixel switched by using a MFS TFT were simulated. We observed that the level shift voltage decreased compared with that for the case of a conventional a-Si TFT-LCD. We calculated the power consumption both for the pixel switched by using the MFS TFT and for a conventional pixel. The pixel switched by the MFS TFT consumed 37.5 % of the power required by a conventional a-Si TFT-LCD pixel.

Political Ties, Technological Capabilities, and Rigidity during Market Liberalizations in Emerging Economies

홍성진 영남대학교 중국연구센터 2019 중국과 중국학 Vol.- No.36

Do political ties formed by business groups in emerging economies, such as China, facilitate or hinder technological capability building? Drawing on dynamic capabilities and organization rigidity literature, this paper argues that the relationship between political ties and technological capabilities in emerging economies is contingent on the extent of external environmental threats to which the business group is exposed. This paper aims to explain why business groups that have invested in political ties remain inertial to change their resource investment patterns despite the competitive threats from product market liberalization (e.g., trade liberalization), and how business groups that invested in political ties can sustain their preferential accesses to strategic factors until they encounter effective factor market liberalization (e.g., capital market liberalization).

비마취전문의의 정맥마취제 사용

홍성진 대한의사협회 2013 대한의사협회지 Vol.56 No.8

Non-anesthesiologist physicians commonly administer intravenous anesthetics for procedural sedation in Korea. However, an analysis of legal suits shows that such procedural sedation is often performed unsafely. Procedural sedation using potent intravenous anesthetics has similar effect as general anesthesia, which means it has a potential for respiratory and cardiac suppression. There is no training program for non-anesthesiologists to obtain the skills for the adequate control of sedation depth and problem solving. This paper urges the Korean Medical Association and affiliated societies to establish a program to teach doctors the proper use of intravenous anesthetics. The program should cover adequate monitoring of patients, airway management,and cardiopulmonary resuscitation. Access to intravenous anesthetics also poses a risk of drug abuse. Doctors and patients should be cautioned about the abuse potential of intravenous anesthetics, and strict control of such drugs is necessary.

[발제논문] 주거안정을 위한 건설 안전법제의 검토 및 시사점

홍성진 한국토지공법학회 2022 한국토지공법학회 학술대회 Vol.- No.125

규제완화를 통한 주택공급 및 개발이익 공유 확대 방안

홍성진 한국토지공법학회 2022 한국토지공법학회 학술대회 Vol.- No.126