• Title/Summary/Keyword: Team approach

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AERODYNAMIC AND NOISE CALCULATIONS OF HELICOPTER ROTOR BLADES USING LOOSE CFD-CSD COUPLING METHODOLOGY (CFD-CSD 연계 기법을 이용한 로터 블레이드 공력 및 소음 해석)

  • Kang, H.J.;Kim, D.H.;Wie, S.Y.
    • Journal of computational fluids engineering
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    • v.19 no.3
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    • pp.62-68
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    • 2014
  • The aerodynamic and noise calculations were performed through the CFD-CSD loose coupling methodology. In the loose coupling process, the trimmed rotor airloads were predicted by the in-house CFD code based on unstructured overset meshes, and the trim of the rotorcraft and the aeroelastic deformation of rotor blades were accounted with the CAMRAD II rotorcraft comprehensive code. The set of codes was used to analyze the HART-II baseline test condition. The effect of grid resolution and time step was examined and the loose coupling approach was found to be stable and convergent for the case. Comparison of the resulting sectional airloads, structural deformations, the noise carpets and the wake geometry with experimentally measured data was presented and showed the good agreement.

Quality Cost Mitigation Strategy through Satellite's Mission Assurance (임무보증활동을 통한 인공위성 품질비용 저감방안)

  • Kim, You-gwang;Lee, Woo-jun;Baek, Myung-jin;Chun, Young-Sik;Lee, Nak-young
    • Journal of Aerospace System Engineering
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    • v.9 no.2
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    • pp.41-46
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    • 2015
  • The various risk factors that affected schedule, costs and mission success, etc. in development of the satellite. This paper derives the considerable "Cost of Quality" factors in the satellite development phase through the survey of practical techniques in respect of measurement of quality cost in the commercial products manufacturing, and proposes mitigation strategy of quality cost using the approach that can be minimized it.

Predicting football scores via Poisson regression model: applications to the National Football League

  • Saraiva, Erlandson F.;Suzuki, Adriano K.;Filho, Ciro A.O.;Louzada, Francisco
    • Communications for Statistical Applications and Methods
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    • v.23 no.4
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    • pp.297-319
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    • 2016
  • Football match predictions are of great interest to fans and sports press. In the last few years it has been the focus of several studies. In this paper, we propose the Poisson regression model in order to football match outcomes. We applied the proposed methodology to two national competitions: the 2012-2013 English Premier League and the 2015 Brazilian Football League. The number of goals scored by each team in a match is assumed to follow Poisson distribution, whose average reflects the strength of the attack, defense and the home team advantage. Inferences about all unknown quantities involved are made using a Bayesian approach. We calculate the probabilities of win, draw and loss for each match using a simulation procedure. Besides, also using simulation, the probability of a team qualifying for continental tournaments, being crowned champion or relegated to the second division is obtained.

Otolaryngologic Management related with Cleft Lip & Palate (구순구개열 환자의 이비인후과적 관리)

  • Choi, Hong-Shik
    • Korean Journal of Cleft Lip And Palate
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    • v.10 no.1
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    • pp.33-38
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    • 2007
  • Team approach for the management of cleft lip & palate patients is very important. Plastic surgeon, oral-maxillofacial surgeon, orthodontist, otolaryngologist, and speech therapist should be included in the team. Main role of the ENT surgeon may be variable and is up to the team characteristics. Main topics of ENT surgeons' interesting fields are evaluation and management of hearing impairment due to SOM, voice disorder, and velopharyngeal incompetency due to submucous cleft palate & still remained VPI after curative palatoplasty. Basic review of anatomy & physiology related with otolaryngologic aspect of velopharyngeal system was done. Diseases related with hyponasality as well as hypernasality were discussed. Diagnostic and therapeutic methods were discussed. Proper management of hearing impairment and speech disorders are important.

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Image classification methods applicable multiple satellite imagery

  • Jeong, Jae-Jun;Kim, Kyung-Ok;Lee, Jong-Hun
    • Proceedings of the KSRS Conference
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    • 2002.10a
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    • pp.81-81
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    • 2002
  • Classification is considered as one of the processes of extracting attributes from satellite imagery and is one of the usual functions in the commercial satellite image processing software. Accuracy of classification plays a key role in deciding the usage of its results. Many tremendous efforts far the higher accuracy have been done in such fields; training area selection, classification algorithm. Our research is one of these effort in different manners. In this research, we conduct classification using multiple satellite image data and evidential approach. We statistically consider the posterior probabilities and certainty in maximum likelihood classification and methodologically Dempster's orthogonal sums. Unfortunately, accuracy for the whole data sets has not assessed yet, but accuracy assessments in training fields and check fields shows accuracy improvement over 10% in overall accuracy and over 0.1 in kappa index.

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Analysis of Learning Experience on Team-based Technology Design Project of Non-Engineering Students

  • KIM, Insu
    • Educational Technology International
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    • v.15 no.2
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    • pp.201-215
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    • 2014
  • The design project of a technology product provides an opportunity for students to experience the inter-connectedness of academic information and ill-defined real-world problems. This study focuses on non-engineering students' activity and perception through the assistive technology design project. For this purpose, participants engaged in a team-based technology design project. Then, a qualitative research approach was adopted, which included reflective journals with 24 undergraduate students majored in Adaptive Physical Education. The analysis identified six factors (knowledge value, social value, reality value, accomplishment value, perspective value, benefit value) of perception and five stages (topic selection, function suggestion, visualization, presentation preparation, and presentation) of activity.

Development of Strength Evaluation Methodology for Independent IMO TYPE C Tank with LH2 Carriers

  • Beom-Il, Kim ;Kyoung-Tae Kim;Shafiqul Islam
    • Journal of Ocean Engineering and Technology
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    • v.38 no.3
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    • pp.87-102
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    • 2024
  • Given the inadequate regulatory framework for liquefied hydrogen gas storage tanks on ships and the limitations of the IGC Code, designed for liquefied natural gas, this study introduces a critical assessment procedure to ensure the safety and suitability of such tank designs. This study performed a heat transfer analysis for boil-off gas (BOG) calculations and established separate design load cases to evaluate the yielding and buckling strength. In addition, the study assessed methodologies for both high-cycle and low-cycle fatigue assessments, complemented by comprehensive structural integrity evaluations using finite element analysis. A comprehensive approach was developed to assess the structural integrity of Type C tanks by conducting crack propagation analysis and comparing these results with the IGC Code criteria. The practicality and efficacy of these methods were validated through their application on a 23K-class liquefied hydrogen carrier at the concept design stage. These findings may have important implications for enhancing safety standards and regulatory policies.

Early Hospice Consultation Team Engagement for Cancer Pain Relief: A Case Report

  • Jisoo Jeong
    • Journal of Hospice and Palliative Care
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    • v.27 no.2
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    • pp.77-81
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    • 2024
  • This case report explores the challenges and complexities associated with opioid management of cancer pain, emphasizing the importance of early involvement of a hospice consultation team and the adoption of a multidisciplinary approach to care. A 56-year-old man with advanced pancreatic cancer experienced escalating pain and inappropriate opioid prescriptions, highlighting the shortcomings of traditional pain management approaches. Despite procedural intervention by the attending physician and increased opioid dosages, the patient's condition deteriorated. Subsequently, the involvement of a hospice consultation team, in conjunction with collaborative psychiatric care, led to an overall improvement. The case underscores the necessity of early hospice engagement, psychosocial assessments, and collaborative approaches in the optimization of patient-centered palliative care.

Kalman Filter Estimation of a Company's Intangible Assets

  • Jeong, Ki-Ho;Lee, Chun-Kyung
    • Journal of the Korean Data and Information Science Society
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    • v.13 no.2
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    • pp.45-53
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    • 2002
  • A company's market value-added, which equals the excess of a company's market capitalization over it s book value, is used as one of the measures for intangible assets valuation in accounting literature. One problem with the approach is that the valuation results are affected by severe fluctuations in capital markets. In this paper, we propose an approach using the Kalman filter for intangible assets valuation. We apply this method to data of Korean electronic companies.

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