• Title, Summary, Keyword: Team Effectiveness

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Effectiveness of Friction Loss Calculation Used for Water Mist Fire Extinguishing System on Marine Vessels

  • Lee Kyung-Woo;Kim You-Taek;Lee Young-Ho;Kim Mann-Eung
    • Journal of Advanced Marine Engineering and Technology
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    • v.29 no.1
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    • pp.86-97
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    • 2005
  • Nowadays, Water Mist Fire Extinguishing System is increasingly used in maritime field for various application. The fire extinguishing capability of the system should be verified by hydraulic calculation in the same manner as the conventional water based fire extinguishing system such as sprinkler system. water spray system and etc. Additionally, the review of effectiveness of friction loss calculation method used for hydraulic calculation is needed because the pipe flow characteristic of its piping system has higher Reynolds number than that of the conventional system. In this paper the review work was carried out based on the NFPA Code 750.

STREANUNGTECBNOLOGY AND MOBILE GEOGRAPIDC INFORMATION SERVICE

  • Yoo JaeJun;Choi JiHoon;Sung KyoungBok;Kim JungSook
    • Proceedings of the KSRS Conference
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    • pp.567-570
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    • 2005
  • Recently, as mobile paradigms such as telematics or LBS (Location Based Service) have been being more diverse and mobile devices such as PDA (Personal Digital Assistance) or several telematics terminals have been being used more widely, mobile services, for example, mobile geographic information service have been being put more importance by people. In this paper, we propose to adopt S/W and data streaming mechanism as a method to improve performance of mobile geographic information service which is a representative of mobile services based on client-server architecture. The show the effectiveness of proposed methods, we design and implement S/W streaming prototype system and sample mobile geographic information service to be executed on the S/W streaming system.

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Development of an Automatic System for Feasibility Studies on Transport Investment

  • Eom, Jin Ki;Lee, Kwang Sub;Lee, Jun;Moon, Dae Seop
    • International Journal of Railway
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    • v.5 no.4
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    • pp.144-147
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    • 2012
  • New transport technologies have been rapidly developed and various transport systems are ready to introduce. However, there no exists effective decision making tools for pre-feasibility studies on transport systems. The pre-feasibility studies should provide reliable solutions about whether a certain transport system is feasible or not by cost-benefit analysis and effectiveness test of enhancing regional economy. This study introduces the smart transport investment/information system (SMARTIS) for supporting decision making with ease, fast and reliable methods. The SMARTIS incorporates travel demand estimates into the process of feasibility studies with automatic data processing methods to give reliable solutions quickly. The SMARTIS is expected to be informative for transit agencies, planners, and operators.

A Win/Lose prediction model of Korean professional baseball using machine learning technique

  • Seo, Yeong-Jin;Moon, Hyung-Woo;Woo, Yong-Tae
    • Journal of the Korea Society of Computer and Information
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    • v.24 no.2
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    • pp.17-24
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    • 2019
  • In this paper, we propose a new model for predicting effective Win/Loss in professional baseball game in Korea using machine learning technique. we used basic baseball data and Sabermetrics data, which are highly correlated with score to predict and we used the deep learning technique to learn based on supervised learning. The Drop-Out algorithm and the ReLu activation function In the trained neural network, the expected odds was calculated using the predictions of the team's expected scores and expected loss. The team with the higher expected rate of victory was predicted as the winning team. In order to verify the effectiveness of the proposed model, we compared the actual percentage of win, pythagorean expectation, and win percentage of the proposed model.

A Test of Moderating Effect of Superior Support Between Issue Leadership and Performance: With an Emphasis on Team Member's Issue Leadership (이슈리더십과 성과 간의 관계에서 상사지원의 조절효과 검증 -팀원의 이슈리더십을 중심으로-)

  • Shin, Sung-Hyun;Baik, Ki-Bok;Choi, Ji-Sun
    • The Journal of the Korea Contents Association
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    • v.15 no.6
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    • pp.463-476
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    • 2015
  • Until now most of the leadership studies have been focused to managers having in formal authority. However, in the recent business environment, team member should also demonstrate his leadership. Hence, the purpose of this study has been focused to the team member's leadership and their leadership effectiveness. In this study, we verified how the degree of master sergeant's support can control to moderate the intensity of the team member's leadership behavior. The analysis results were as follows: we have found that team member's issue leadership can effect on positive(+) way on the audience's acceptance to the leader as well as team performance. But the moderating effects of master sergeant's support on the team member's issue leadership and leader acceptance was not significant in terms of statistical point of view. It has also shown even the negative(-) effects of master sergeants's support on the team member's issue leadership and leader acceptance as well as team performance. Through this study, we can understand that the master sergeant's support may impeding the team member's independent leadership.

A Study on the Effectiveness of JPEG2000 for Medical Image Compression (의료영상 압축을 위한 JPEG2000의 효율성 연구)

  • Jung, Jae-Ho;Shin, Jin-Ho;Son, Gi-Gyeong;Kang, Hee-Doo
    • Korean Journal of Digital Imaging in Medicine
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    • v.6 no.1
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    • pp.31-40
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    • 2003
  • Purpose : In a PACS(Picture Archiving Communications System) environment, which is a very important component in a digital medical environment, the compression of digital medical images is a necessary and effective feature. In a current system where JPEG is applied to the compression of medical images, this study is to examine effectiveness and suitability when the JPEG2000, a more advanced compression algorithm for still images, is applied to the compression of medical images. In this thesis, we attempt to address the compressibility for effective clinical usage when compressing medical images, applying the objectivization of clinical evaluation as a function of compressibility. In the experiment al method, the compression was applied at a fixed rate using JPEG2000, and the n the result was compared with compressed images by JPEG. Method : For the performance evaluation, we choose SNR(Signal to Noise Ratio) measurement of an objective evaluation of definition and analyze a subjective evaluation by the ROC(Receiver Operating Characteristic) method. The results of the experiment showed that in the case of JPEG2000 there is hardly any distortion of images, even at high compression ratio(100:1), while regarding noise, the SNR remains around about 40dB, which is also relatively high. Before reading by reference to evaluative materials concerning objective compressed images, it is impossible to apply high compression to images : however, after reading, this can be applied to images that have already existed for some time.

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The Study on the Effect on Friction Characteristics of Brake Pads With $BaSO_4$ and $CaCO_3$ ($BaSO_4$$CaCO_3$ 자동차용 Brake Pad의 마찰 특성에 미치는 영향 연구)

  • Jeong Geun Joong;Kim Hyang Rae;Kim Dae Hwan;Song Hyun Woo;Choi Hyeoung Gi
    • Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference
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    • pp.47-52
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    • 2004
  • The purpose of this study is to investigate the friction characteristics of brake pads according to different ratios of $BaSO_4/CaCO_3$. Four brake pads with different ratios of $BaSO_4/CaCO_3$ were manufactured. The friction characteristics of brake pads were tested using 1/5 reduced scale tester. With increasing of the amount of $BaSO_4$ density and shear strength of brake pads were increased and hardness of brake pads were decreased. In effectiveness, the friction coefficient of brake pad was higher and the stability of friction coefficient was better as the ratio of $BaSO_4$ increased. In fade test, friction coefficient of B3 sample used only $CaCO_3$ was decreased rapidly. B1 sample showed a good noise performance without noise generation. The wear resistance of samples were decreased with increasing of the ratio of $CaCO_3$.

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A Study between Entrepreneurship and Entrepreneurship education Outcomes : Focusing on Hackathon Education by transformational leadership effectiveness analysis (기업가정신과 창업교육 성과간의 연구 - 해커톤 교육을 중심으로 한 변혁적리더십 효과성 분석 -)

  • Nam, Jung Min
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • v.10 no.1
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    • pp.45-53
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    • 2015
  • This study validates the effectiveness of Hackathon Education which is popular entrepreneurship education method. And to reveal how entrepreneurship affects willingness of entrepreneurship and its team commitment. In addition, this study is to examine the moderating effect of transformational leadership in the relationship between entrepreneurship and its performance. The results show that entrepreneurship has no statistically significant result, but has positive impact on the willingness of entrepreneurship. However, moderating effect was proved between entrepreneurship and willingness of entrepreneurship. Therefore, entrepreneurship has positive effect on willingness by complementary relationship of transformational leadership Furthermore, entrepreneurship has positive impact on its team commitment and even though statistically not proven but also transformational leadership can affect its team commitment by interaction of entrepreneurship.

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The Second Study on the Effectiveness of Nursing Organization (간호조직 효과성에 관한 2차 연구)

  • 박영주;이숙자;장성옥
    • Journal of Korean Academy of Nursing
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    • v.27 no.2
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    • pp.253-263
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    • 1997
  • This second study on the effectiveness of nursing organization was designed to test the relationships between effectiveness of nursing organizations and structural variables that had been significant variables in the first study, the group design variable and the personal characteristic variables that had not been analyszed in the first study based on personal resource productivity model. The data were collected through self-reported questionnaires completed by 605 nurses working in hospitals in seoul and 782 patients being hospitalized in 5 tertiary hospitals in Seoul. The results showed that according to the canonical correlation analysis, the managing job design, nursing delivery system. nurse's age, career. and formalization were revealed as predicting variables of a nurses' job satisfaction and patients satisfaction among the five hospitals. Hospitals in which the team nursing method was used showed a higher score in nurses' job satisfaction and patient satisfaction than in hospitals which used the functional nursing model.

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