• Journal of Digital Convergence
• /
• v.19 no.7
• /
• pp.371-377
• /
• 2021

This study tried to analyze the types of sport emotion by sport game characteristics. For that, 7 soccer games and 6 baseball games of Korean team in 2018 Asian Games were selected, and the articles and their replies about those on social network services were collected as study materials. Python was used for the collecting and expert group meeting was held for the emotion analysis. As the results of the analysis on sport emotion types by win or lose, the level of opponents and the performance of Korean team as game characteristics, the following conclusions were drawn. First, it was hard to say that win or lose and opponent's level make certain sport emotion type. Second, The performance could made contended, enthusiastic and joyful emotions when judged good, but frustrated, angry, humiliated emotions when bad. Third, social·cultural background or certain event of the games also could effect on the sport emotion types. Follow-up studies with the other game characteristics and more game cases were needed to find out more clear causal relationship.

• Structural Engineering and Mechanics
• /
• v.85 no.6
• /
• pp.729-742
• /
• 2023

It is a recent attraction to the mechanical scientists to investigate state of wave propagation, buckling and vibration in the sport balls to observe the importance of different parameters on the performance of the players and the quality of game. Therefore, in the present study, we aim to investigate the wave propagation in handball game ball in term of mass of the ball and geometrical parameters wit incorporation of the viscoelastic effects of the ball material into account. In this regard, the ball is modeled using thick shell structure and classical elasticity models is utilized to obtain the equation of motion via Hamilton's principle. The displacement field of the ball model is obtained using first order shear deformation theory. The resultant equations are solved with the aid of generalized differential quadrature method. The results show that mass of the ball and viscoelastic coefficient have considerable influence on the state of wave propagation in the ball shell structure.

• The Journal of Industrial Distribution & Business
• /
• v.14 no.3
• /
• pp.9-17
• /
• 2023

Purpose: Intrinsic motivation can be affected by external factors and may not always be present in an employee. This study aims to shed light on the role of intrinsic and extrinsic motivation in driving employee performance and to determine which type of motivation has a greater impact on performance. Additionally, the research seeks to understand the impact of motivation on different employee characteristics, such as age, gender, and job tenure. Research design, data and methodology: The present author has obtained textual data from the current literature dataset, However, focusing on mostly journal articles and published books because it could provide the justification of reliability and validity and help to collect solid previous studies which is logically categorized themes. Results: The findings of the present research are divided into four differences (Difference in Job Satisfaction, Difference in Job Involvement, Difference in Organizational Commitment, and Difference in Turnover Intention), each focusing on one aspect of employee performance: job satisfaction, job involvement, organizational commitment, and turnover intention. Conclusions: Organizations can use the differences in employee performance based on intrinsic and extrinsic motivation to improve employee performance by recognizing the importance of intrinsic motivation, providing opportunities for employees to experience intrinsic motivation, and balancing extrinsic and intrinsic motivation.

• Korea Trade Review
• /
• v.45 no.5
• /
• pp.23-35
• /
• 2020

The purpose of this study is to examine relationships among exhibition selection factor, performance, satisfaction and intention to revisit of participants in international exhibition. For this purpose, we set hypotheses relationship among external selection factor of exhibition (ESFE), internal selection factor of exhibition (ISFE), performance of sales (PS), performance of information gathering (PIG), performance of relationship building (PRB), performance of image building (PIB), satisfaction (SAT) and intention to revisit (IR). To verify theses hypotheses, we conducted path analysis on the data from 100 participants of 2019 Korea International Boat Show. The result of this study is as follows: Frist, ESFE positively impacts on PS, PIG, PRB, PIB. Second, ISFE positively impacts on PIG, PRB. Third, PS and PIB positively impacts on SAT. Fourth, SAT positively impacts on IR. The implication of this study is two fold. This study expands research area of international exhibition to a new industry such as marine leisure sports industry and provides useful information to firms that plan to participate in the international exhibition and to those who organize the international exhibitions.

• Journal of Industrial Convergence
• /
• v.18 no.1
• /
• pp.65-71
• /
• 2020

Recently, the field of using data has begun to attract attention in professional sports. In the field of data utilization, in addition to the classic records obtained within the economy, secondary records that emphasize efficiency are also actively used. Therefore, in this study, we try to study the correlation with the pitcher's strikeout ability through the daily average humidity, which is data outside the competition. For this reason, referring to the daily average record of the area of the home base of 10 teams belonging to the KBO league and the auxiliary stadium, the top 5 in the win, hold, save section to grasp the characteristics of the starting pitcher and the rescue pitcher We analyzed K / 9 records for each person. Through the results of this study, we found a significant difference in the K / 9 record between the starting pitcher and the rescue pitcher, and we can expect to investigate the use of professional sports data and develop the industry in general.

• Korean Journal of Applied Biomechanics
• /
• v.30 no.2
• /
• pp.185-195
• /
• 2020

Objective: The purpose of this study was to identify recent domestic and international research trends regarding shoes carried out in biomechanics field and to suggest the direction of shoe research later. Method: To achieve this goal of research, the Web of Science, Scopus, PubMed, Korea Education and Research Information Service and Korean Citation Index were searched to identify trends in 64 domestic and international research. Also, classified into the interaction of the human body, usability evaluation of functional shoes, smart shoe development research, and suggested the following are the suggestions for future research directions. Conclusion: A study for the coordination of muscle activity, control of motion and prevention of injury should be sought by developing shoes of eco-friendly materials, and scientific evidence such as physical aspects, materials, floor shapes and friction should be supported. Second, a study on elite athletes in various sports is needed based on functional shoes using new materials to improve their performance along with cooperation in muscle activities and prevention of injury. Third, various information and energy production are possible in real time through human behavioral information, and the application of Human Machine Interface (HMI) technology through shoe-sensor-human interaction should be explored.

• Korea Trade Review
• /
• v.46 no.4
• /
• pp.1-16
• /
• 2021

This study suggests improvements in the management performance of the five largest exhibition and convention centers in Korea through financial ratio analysis. For this research, the financial ratios of each center were compared to the average of the centers as well as to the overall industry average during the past five years. According to the analysis results, the stability and growth ratios of the centers were excellent, but the profitability and activity ratios were poor. In particular, the ratios of profitability were in state of urgent need for improvement because they were at the level of severe deficits. It was analyzed that sales increase can be the key factor to improve centers' operation income and net profit to improve profitability. This study recommends measures to increase sales by using centers' facilities and their functions. The first is to actively host large-scale international meetings and conventions that only exhibition and convention centers can accommodate. The second is to attract brand exhibitions through strategic alliances with global Professional Exhibition Organizers (PEOs). Lastly, it is to organize sports and cultural events that are appropriate for incentive tours of associations and corporations.

• Korean Journal of Applied Biomechanics
• /
• v.15 no.2
• /
• pp.21-29
• /
• 2005

The Purpose of this study was to seek determinant factors through analysis of 65 snatch skill kinematic factors of Athletics participated in 2001 Asian weightlifting competetion. The conclusion were as follows ; 1. In order to enhance snatch skill, when barbell move on knee position, One should be flex knee joint to 105-110 degree, and In pull motion, One should be move powerful extension of knee and hip joint. 2. In last pull motion, One try to make more lock out motion than extra extention motion of hip joint 3. In order to enhance snatch skill, It is inportant that elevate barbell highly by last pull motion through powerful knee extention, poweful hip flextion and One should be make lock out motion fast in the same time. 4. In order to enhance snatch skill, anterior-posterior movement width of shoulder joint should be small. 5. In order to enhance snatch skill, Hip joint should be move vertically on start and lock out phase, but In pull phase, extension motion of hip joint shoulde be performed more largely and powerfully.

• Journal of the Korea Society of Computer and Information
• /
• v.26 no.4
• /
• pp.213-221
• /
• 2021

In this paper, we suggest the Deep Neural Network Model System for predicting results of the match of 'League of Legends (LOL).' The model utilized approximately 26,000 matches of the LOL game and Keras of Tensorflow. It performed an accuracy of 93.75% without overfitting disadvantage in predicting the '2020 League of Legends Worlds Championship' utilizing the real data in the middle of the game. It employed functions of Sigmoid, Relu and Logcosh, for better performance. The experiments found that the four variables largely affected the accuracy of predicting the match --- 'Dragon Gap', 'Level Gap', 'Blue Rift Heralds', and 'Tower Kills Gap,' and ordinary users can also use the model to help develop game strategies by focusing on four elements. Furthermore, the model can be applied to predicting the match of E-sports professional leagues around the world and to the useful training indicators for professional teams, contributing to vitalization of E-sports.

• Journal of Advanced Marine Engineering and Technology
• /
• v.31 no.5
• /
• pp.606-613
• /
• 2007

The 6m class high speed boat is developed with a durable hull and inflatable tube, which is called RIB(Rigid Inflatable Boat), for the purpose of marine leisure. In the stage of the conceptual design, its requirements to be optimized are determined based on the presented information of similar marine leisure RIBs. The 3-D graphical technique using Marine Rhino is utilized to optimize the compartment layout of RIB. The stability analysis is performed for the light and full load conditions with and without the inflatable tube. In addition, the sea keeping and hydrodynamic performance was tested using the proto-type ship in the sea condition. From the results of the computation and the sea trial test, it shows that the performance of the marine leisure RIB satisfies the speed, the convenience, and the stability requirements. This study provides the typical information of the design factors and the procedure to manufacture the marine leisure RIB.