• International Journal of Aeronautical and Space Sciences
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• v.11 no.2
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• pp.145-153
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• 2010

In this work, the comprehensive structural dynamics codes including DYMORE and CAMRAD II are used to validate the higher harmonic control aeroacoustic rotor test (HART) II data in descending flight condition. A total of 16 finite elements along with 17 aerodynamic panels are used for the CAMRAD II analysis; whereas, in the DYMORE analysis, 10 finite elements with 31 equally-spaced aerodynamic panels are utilized. To improve the prediction capability of the DYMORE analysis, the finite state dynamic inflow model is upgraded with a free vortex wake model comprised of near shed wake and trailed tip vortices. The predicted results on aerodynamic loads and blade motions are correlated with the HART II measurement data for the baseline, minimum noise and minimum vibration cases. It is found that an improvement of solution, especially for blade vortex interaction airloads, is achieved with the free wake method employed in the DYMORE analysis. Overall, fair to good correlation is achieved for the test cases considered in this study.

• Journal of the Korean Institute of Rural Architecture
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• v.11 no.4
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• pp.17-24
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• 2009

To ensure the revitalization of rural communities with viable levels of population, various agricultural policies are needed. Attaining this goal demands a comprehensive plan to improve rural housing conditions in general, along with more proactive policies dealing with existing rural housing problems by providing public housing options. The purpose of this paper is to suggest a set of base data which can provide direction when proposing prospective housing policies which comply the peculiar and changing needs of rural communities. To establish the base data, the study reviewed all the relevant issues, requirements and resources in the course of developing rural housing regulations and policies. Some municipal organizations have implemented independent housing programs for returning farmers. They provide one-stop service corners to provide returning farmers comprehensive counseling and information about employment, child-rearing and education, housing, and etc. in their municipals. Agricultural housing projects nowadays focus on promoting voluntary establishments of local communities by providing comprehensive plans for public housing, idyllic housing and other interchange facilities. Recent trends on housing project take into consideration both residential areas and their surrounding landscapes at minimum investment possible. The efficient investment of regional housing development lies in the simultaneous consideration on both the construction and operation and management of housing development from beginning to end.

• Journal of Sasang Constitutional Medicine
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• v.23 no.3
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• pp.285-293
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• 2011

1. Objectives: This study examines the pathologies that originate from a Common Root Pathologic Category(CRPC; 同出一屬) in the Soyangin that are suggested in the Sasang Constitutional Medicine(SCM). 2. Methods: The changes in concepts and perceptions on the Soyangin pathologies were compared across the different editions of Donguisusebowon, "Donguisusebowon, Gabo edition(東醫壽世保元甲午本) (DGO)" and "Donguisusebowon, Sinchuk edition (東醫壽世保元辛丑本) (DSC)". 3. Results and Conclusions: The Soyangin pathologies originating from a CRPC that are described in Donguisusebowon are actually detailed classifications of the Yin-deficiency Diurnal-heat symptomatology (陰虛午熱證) and the Chest-congestion symptomatology (結胸證). Lee Jema had introduced the concept of "Common Root Pathologic Category(CRPC)" to approach pathologies of similar exterior/interior classification or severity stage (mild/moderate/severe/critical) by combining them in a comprehensive, integrative pathology system. This comprehensive approach, which promotes better understanding of the Soyangin pathology and maximizes the therapeutic efficiency of SCM, constitutes the "Comprehensive Therapeutic Methodology" that is the hallmark of Sasang therapy.

• International Journal of Aeronautical and Space Sciences
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• v.10 no.2
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• pp.23-33
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• 2009

The inherent aeromechanical complexity of a rotor system necessitated the comprehensive analysis code for helicopter rotor system. In the present study, an aerodynamic analysis module has been developed as a part of rotorcraft comprehensive program. Aerodynamic analysis module is largely classified into airload calculation routine and inflow analysis routine. For airload calculation, quasi-steady analysis model is employed based on the blade element method with the correction of unsteady aerodynamic effects. In order to take unsteady effects - body motion effects and dynamic stall - into account, aerodynamic coefficients are corrected by considering Leishman-Beddoes's unsteady model. Various inflow models and vortex wake models are implemented in the aerodynamic module to consider wake induced inflow. Specifically, linear inflow, dynamic inflow, prescribed wake and free wake model are integrated into the present module. The aerodynamic characteristics of each method are compared and validated against available experimental data such as Elliot's induced inflow distribution and sectional normal force coefficients of AH-1G. In order to validate unsteady aerodynamic model, 2-D unsteady model for NACA0012 airfoil is validated against aerodynamic coefficients of McAlister's experimental data.

• Korean Journal of Health Education and Promotion
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• v.20 no.3
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• pp.39-59
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• 2003

The aim of this study was to describe the status and needs of safety education in elementary schools and to develop a model of the comprehensive school safety education in Korea. A literary review was used to assess the status of safety education materials in Korea, the safety education program, and the laws and policies about safety education. A self-administered questionnaire survey was conducted in Seoul, Kyonggi Province, Kwangwon Province, and Jeonbuk Province to assess the status and needs of school safety education. Survey data was obtained in June 2002 from 83 teachers and 21 focus group consisting of experts. The primary goal of safety education is to help students to acquire knowledge, attitudes, and beliefs on safety. Comprehensive safety education has these primary goals： To provide an opportunity for students to develop their values, attitudes and beliefs about safety. This study will help assess the feasibility of applying safety education guidelines in elementary schools in Korea, including theoretical aspects of the field and practical aspects of safety education in relation to guidelines containing the diverse types of safety activities in Korea. In particular, it will suggest appropriate alternatives to current methods, protecting elementary school students in Korea, and how those can be created in the cultural context of Korea.

• Journal of East-West Nursing Research
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• v.17 no.2
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• pp.87-95
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• 2011

Purpose: The aim of this study was to share the experience of clinical performance examinations (CPXs) using standardized patients, which was to test comprehensive clinical competence of fourth-year nursing students for four years. Methods: The assessment strategies for CPXs were developed. It included clinical scenarios, the roles of standardized patients, and appraisal criteria in the areas of fundamental and comprehensive nursing care. The CPXs were implemented to about 60-70 fourth-year nursing students of C University in G-city, South Korea, during every second semester from the year of 2006 to 2009. Results: The effects of CPXs were measured by 10 or 25-item rating checklist. Internal reliability of the checklists was distributed from .511 to .956 and interrater agreement between faculties and standardized patients was moderate (r=.250-.949). Students' satisfaction level was 4.27 out of 5 points for four years. Conclusion: The use of CPXs was an innovative educational strategy to evaluate nursing students' comprehensive performance ability including knowledge, skills and attitude. Further studies are needed to evaluate the levels of critical thinking and problem solving skills of clinical nurses who were taken CPXs as well as employers' satisfaction.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• v.30 no.2
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• pp.150-156
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• 2004

The etiology of the obstructive sleep apnea includes the various factors such as anatomical abnormality in upper airway, craniofacial structure, obesity and personal habit. To establish reasonable treatment plan, multi-department approach is should be emphasized because the treatment modality is depend on the result of analysis for degree & site of obstruction and various behavioral factors. In Sleep Clinic in Keimyung University Medical Center, the standard of care for sleep apnea patient was established according to the Standard of practice committee of Americal Sleep Disorders Association. After one year experience of comprehensive approach for sleep apnea we could achieve following recommendation for the treatment. 1) The multi-department examination and diagnosis could prevent unnessesary treatment because the treatment plan could be established under comprehensive discussion. 2) Determination of the site of obstruction is important for treatment planning. However, no single determinant could be found. We expect multi-department approach can reduce the mistake in detection of obstruction. 3) Further evaluation of treatmet outcome should be succeeded to establish Korean standard of care for sleep apnea treatment.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.12 no.1
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• pp.41-60
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• 2018

Recently, road traffic congestion is becoming a serious urban phenomenon, leading to massive adverse impacts on the ecology and economy. Therefore, solving this problem has drawn public attention throughout the world. One new promising solution is to take full advantage of vehicular ad hoc networks (VANETs). In this study, we propose a new traffic congestion detection and quantification method based on vehicle clustering and fuzzy assessment in VANET environment. To enhance real-time performance, this method collects traffic information by vehicle clustering. The average speed, road density, and average stop delay are selected as the characteristic parameters for traffic state identification. We use a comprehensive fuzzy assessment based on the three indicators to determine the road congestion condition. Simulation results show that the proposed method can precisely reflect the road condition and is more accurate and stable compared to existing algorithms.

• Journal of Korean Institute of Industrial Engineers
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• v.41 no.6
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• pp.530-539
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• 2015

A business model (BM) can be developed based on a business model framework (BMF) consisting of key components such as value proposition, customers, and resources. To systematically generate and analyze emerging BMs such as healthcare BM, an integration of diverse BMF components is needed. The present study is to establish a comprehensive BMF and evaluate its applicability to healthcare BMs. Based on a review of eight BMF studies, ten BMF components were identified and classified into five major components (value proposition, resources, organizing model, customers, and revenue model) and five minor components (technology, service platform, delivery, competitive strategy, and growth/exit) by analyses of frequency and functional importance. Lastly, the BMs of three emerging healthcare companies (WellDoc, Inc., CFW Shops, and Aravind Eye Care System) were analyzed and compared in terms of the proposed BMF components. The comprehensive BMF components presented in the study can be of help for developing new BMs and analyzing the strengths and weaknesses of BMs.

• Journal of Korean Society on Water Environment
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• v.22 no.5
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• pp.748-756
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• 2006

Accurate and timely information on status and trends in the environment is necessary to shape sound water quality management policy and to implement water quality improvement programs efficiently. One of the most effective ways to communicate information on water quality trends to policy-makers, scientists, and the general public is with comprehensive water quality indices. The derivation and structure of a water quality index (WQI) for the classification of surface water quality is discussed. The WQI generally developed through the selection, transformation and weighting of determinants with rating curves based on legal standards and quality directives or guidelines. The representative pollutants should be included in the index, and the relationship between the quantity of these pollutants in the water and the resulting quality of the water should be based on scientific results. The WQI be simply and meaningfully formulated that nonscientifically trained users can easily become familiar with the framework of the system and use the output data to evaluate their own pollution problems.