• Title/Summary/Keyword: selected attributes

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Developing the Evaluation Indicator of Pedestrian Environment for Promoting Walking Activity (걷기활동 증진을 위한 보행환경 평가지표의 개발)

  • Park, Kyung-Hun;Park, Jong-Wan;Jung, Sung-Gwan;You, Ju-Han
    • Journal of Environmental Science International
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    • v.16 no.11
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    • pp.1231-1238
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    • 2007
  • The promotion of walking and bicycling is recently a hot topic in the urban planning and design field. Many planners have already examined the many components of the land use-transportation connection and built environment-physical activity link. A rapidly growing area of urban form research is to measure the level of walk-ability in urban environments. With this background, this research conducted a preliminary study to develop the evaluation indicators of pedestrian environments. Based on the literature reviews on walking or pedestrian environments, we proposed the seventeen indicators related with pedestrian facilities, road attributes and walking environment. We also performed a questionary survey to evaluate the satisfaction of their neighborhood pedestrian environments for 302 randomly selected adults living in the City of Changwon, Gyeongsangnam-do. Finally, this research provided the valid model to evaluate the effects of physical environmental factors on the walking satisfaction using factor analysis and multiple regression analysis.

The analysis of the relationship between the throughput and the wireless channel conditions of a LTE mobile communication system (LTE 이동통신 시스템의 처리율과 무선 채널 상태와의 상관관계 분석)

  • Kim, Beom-Joon
    • The Journal of the Korea institute of electronic communication sciences
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    • v.10 no.2
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    • pp.219-226
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    • 2015
  • As a representative system of the 4th generation mobile communication system, LTE provides much higher transmission rate than the former ones. Considering the varying property that a wireless environment shows, the transmission rate is influenced very deeply by the wireless channel conditions. The transmission rate is one of the most important attributes that has a primary effect on user's satisfaction of the service provided through the LTE system. After we have selected a few metrics that indicate the wireless channel quality, therefore, we have conducted a measurement for the metrics over the real commercial LTE system. By analyzing the measured results, we have found that the channel quality affect more on the transmission rate as the channel quality becomes poorer.

Optimizing Steeping Conditions of Waxy Rice Based on the Sensory Properties of Gangjung (a Traditional Korean Oil-Puffed Snack) (강정의 관능적 특성에 의한 찹쌀의 수침조건 최적화)

  • Kim, Haeng-Ran;Kim, Kyung-Mi;Kim, Kwang-Ok
    • Korean Journal of Food Science and Technology
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    • v.41 no.4
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    • pp.464-470
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    • 2009
  • This study was conducted to determine the optimal steeping period and temperature for Gangjung production, using response surface methodology based on the previously reported sensory characteristics. Five sensory attributes ('degree of expansion', 'sourness', 'butyric acid flavor', 'hardness' and 'degree of melting'), which showed high variability explained ($R^2$) and recognized to be important for the quality of Gangjung were selected for optimization. As a result, the optimal steeping temperature and period of waxy rice were determined to be $31.5^{\circ}C$ and 9 days, respectively.

Characteristics of Eddy Current Signals of Axial Notches in Steam Generator U-bend Tubes using Rotating Pancake Coils (회전코일 와전류신호를 이용한 증기발생기 곡관형 튜브의 축방향노치 신호의 특성)

  • Kim, Chang-Soo;Moon, Yong-Sig
    • Transactions of the Korean Society of Pressure Vessels and Piping
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    • v.8 no.3
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    • pp.7-12
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    • 2012
  • Steam generator tubes are critical boundary of the primary and secondary side in nuclear power plants. Eddy current testing is commonly used as the method of non-destructive testing for the safety and integrity of steam generator tubes in the nuclear power plants. Changes in the geometric shape act as a stress concentration factor likely to cause a defect during the steam generator operation. The mixed-signals with the geometric shape are distorted and attributes that are difficult to detect signals. An example is bending stress due to compression process at a U-bend occurring in the intrados region which has a small radius of curvature. The resulting change in the geometric shape may lead to a dent like occurrences. The dent can cause stress concentration and generates stress corrosion cracks. In this study, the steam generator tubes of nuclear power plant were selected to study for analysis of mixed-signal containing dent and stress corrosion cracks.

Implementation of Mahalanobis-Taguchi System for the Election of Major League Baseball Hitters to the Hall of Fame (메이저리그 타자들의 명예의 전당 입성과 탈락에 대한 Mahalanobis-Taguchi System의 적용과 비교)

  • Kim, Su Whan;Park, Changsoon
    • The Korean Journal of Applied Statistics
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    • v.26 no.2
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    • pp.223-236
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    • 2013
  • Various statistical classification methods to predict election to the Major League Baseball hall of fame of are implemented and their accuracies are compared. Seventeen independent variables are selected from the data of candidates eligible for the hall of fame and well-known classification methods such as discriminant analysis and logistic regression as well as the recently proposed Mahalanobis-Taguchi system(MTS). The MTS showed a better performance than the others in classification accuracy because it is especially efficient in cases where multivariate data does not constitute directionally geographical groups according to attributes.

An Evolutionary Concept Analysis of Taeoom among Nurses (진화론적 방법을 이용한 간호사의 태움 개념분석)

  • Jung, Heeja
    • The Journal of the Convergence on Culture Technology
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    • v.5 no.4
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    • pp.157-169
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    • 2019
  • The purpose of the present study was to prepare baseline data for developing nursing theory and knowledge by analyzing the concept of taeoom among the nurses and by investigating the differences from the similar concept of workplace bullying. This study carried out an analysis after perusing 15 articles selected from 125 research articles retrieved according to the evolutionary method of Rodgers. The attributes of taeoom found in the present study were passage rites, painful human relationships, verbal attacks, and working relationships. There is a clear difference in concept between taeoom and workplace bullying, therefore the two concepts should be used discriminatively in nursing research. In addition, by the dynamic changes of the properties of taeoom according to the times and social circumstances, the concept of taeoom is gradually expanding and changing negatively.

Identification and Structuring of the Workplace Risk Factors Regarding Power Press Machines

  • Kuk, Kang-Hur;Park, Dong-Hyun
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.23 no.56
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    • pp.65-85
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    • 2000
  • Industrial accidents have been consistently increased in terms of medical costs, lost work days, and incidence rates every year in Korea. Since the infrastructure of the industry changed shifts rapidly from 1980s in the developing countries such as South Korea, the nature and magnitude of the industrial accidents have also undergone a major shift. The situation is especially severe in small-to-medium sized industry(SMI). This article reports the development of a systematic evaluation system of risk factors specifically for the SMIs. The new approach introduced by this article is geared to the systematic identification and evaluation of the injuries from power press machines using the Analytic Hierarchy Process with the key evaluation data generated and evaluated by the employees on site. A total of 21 companies was studied and surveyed using the hierarchical structures of the cause-effect relationship of the mechanical injuries and their countermeasures. For the relative weighting of each risk factor, separate questionnaire survey was conducted for the selected workers from each company who had worked for more than 10 years in press work. Most participants (48 out of 62) replied that human attributes were the most significant factors for mechanical injuries fellowed by administration, machine, and work environment factors. The result also showed that the self-motivated risk assessment and safety enhancement activities would be an effective and efficient way of managing the risk factors in the SMIs.

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A Conceptual Analysis of Korean Elders' Yangsaeng in Nursing (간호학적 한국노인의 양생(養生) 개념분석)

  • Gu, Min Kyung
    • Research in Community and Public Health Nursing
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    • v.30 no.1
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    • pp.1-10
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    • 2019
  • Purpose: This study tries to analyze the concept of Yangsaeng in the Korean aged, with focus on nursing. Methods: Rodgers' evolutionary approach was used to identify the common definitions, attributes, antecedents, and consequences of the Yangsaeng concept for the aged. Literature search was conducted at the NAL, NDSL, RISS, ProQuest, PubMed, AMED, and MEDLINE databases from 2004 to 2016, using the keywords "Yangsaeng," "health promotion," "health management," "traditional oriental methods," and "traditional oriental nursing."Finally, 20 relevant articles were selected and thoroughly reviewed. Results: The analysis shows that the model of Yangsaeng for the Korean aged is that of personal adaptive-capacity, totality, challenging, and coping resource and includes physical, social and psychological health and wellness. Conclusion: This work provides some implications on the development of nursing intervention related with Yangsaeng for the Korean aged, and suggests the implementation of such intervention in the practice of Yangsaeng for the Korean aged. Therefore, a better understanding of the Korean aged and Yangsaeng within the context of nursing can be achieved.

An integrative literature review on intimate partner violence against women in South Korea

  • Min, Hye Young;Lee, Jung Min;Kim, Yoonjung
    • Women's Health Nursing
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    • v.26 no.4
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    • pp.260-273
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    • 2020
  • Purpose: The purpose of this study was to analyze and synthesize the literature on intimate partner violence (IPV) against women in South Korea. Methods: Whittemore and Knafl's integrative review method was used. Studies in English and Korean were searched in seven electronic databases using the following combination of terms: "Korea," "females or women or girls," "intimate partner violence or domestic violence or domestic abuse." Results: Twenty-five studies were ultimately selected, all of which met the quality appraisal criteria with a grade of medium or higher, using Gough's weight of evidence. IPV was divided into marital violence and dating violence. Factors related to IPV were classified into intrapersonal, interpersonal, and social factors, and these three factors were linked together. Intrapersonal factors included general characteristics, perceptions, attitudes, psychological factors, and violent experiences. Interpersonal factors involved relationships with parents and partners. Finally, social factors and attributes were integrated into social support and influences on life. Conclusion: In order to minimize and prevent harm to women from IPV when caring for women who experienced IPV, multiple factors should be considered. Specifically, general and psychological characteristics, perceptions and attitudes toward IPV, relationships with families and partners, and available social support systems and resources should be considered. Moreover, these findings will be helpful for assessing women or providing interventions for victims of violence. Finally, more diverse IPV studies should be conducted by nurses in the future.

Impact Analysis of Partition Utility Score in Cluster Analysis (군집분석의 분할 유용도 점수의 영향 분석)

  • Lee, Gye Sung
    • The Journal of the Convergence on Culture Technology
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    • v.7 no.3
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    • pp.481-486
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    • 2021
  • Machine learning algorithms adopt criterion function as a key component to measure the quality of their model derived from data. Cluster analysis also uses this function to rate the clustering result. All the criterion functions have in general certain types of favoritism in producing high quality clusters. These clusters are then described by attributes and their values. Category utility and partition utility play an important role in cluster analysis. These are fully analyzed in this research particularly in terms of how they are related to the favoritism in the final results. In this research, several data sets are selected and analyzed to show how different results are induced from these criterion functions.