• 융합경영연구
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• 제12권2호
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• pp.61-71
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• 2024

Purpose: This study explores the impact of discrimination experience on stress levels among Seoul's public housing complex residents, emphasizing the moderating role of social capital. Research design, data and methodology: Utilizing the 2019 Seoul public housing (PH) panel data and an ordered logit model, the research categorizes residents based on personal and environmental factors, contrasting them across different local housing price levels. Results: We find that public housing residents' experience of discrimination has a significant impact on stress, and local housing prices are positively related to stress. Interestingly, stress due to discrimination is more pronounced in high-priced neighborhoods, which are associated with real estate inequality. Conversely, this impact is less pronounced in lower-priced neighborhoods. Importantly, social capital not only has a significant moderating effect on stress for all residents, but in high-priced neighborhoods, it also moderates the stress caused by experiences of discrimination for social housing residents. Conclusions: These findings highlight the need for policy interventions to strengthen social capital and address socioeconomic disparities in public housing, and are significant for analyzing the nuanced relationship between neighborhood, housing affordability, discrimination, and stress in urban communities for public housing residents, which is a socially problematic issue.

• Nuclear Engineering and Technology
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• 제55권11호
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• pp.4057-4065
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• 2023

Organic scintillators are widely used for neutron/gamma detection. Pulse shape discrimination algorithms have been commonly used to discriminate the detected radiations. These algorithms have several limits, in particular with plastic scintillator which has lower discrimination ability, compared to liquid scintillator. Recently, machine learning (ML) models have been explored to enhance discrimination performance. Nevertheless, obtaining an accurate ML model or evaluating any discrimination approach requires a reference neutron dataset. The preparation of this is challenging because neutron sources are also gamma-ray emitters. Therefore, this paper proposes a pipeline to prepare clean labeled neutron/gamma datasets acquired by an organic scintillator. The method is mainly based on a Time of Flight setup and Tail-to-Total integral ratio (TTT_ratio) discrimination algorithm. In the presented case, EJ276 plastic scintillator and ²⁵²Cf source were used to implement the acquisition chain. The results showed that this process can identify and remove mislabeled samples in the entire ToF spectrum, including those that contribute to peak values. Furthermore, the process cleans ToF dataset from pile-up events, which can significantly impact experimental results and the conclusions extracted from them.

• 한국심리학회지 : 문화 및 사회문제
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• 제21권3호
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• pp.511-534
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• 2015

본 연구의 목적은 캐나다 소재 대학교에 재학 중인 한국인 대학생을 대상으로 지각된 차별감과 우울의 관계에서 대처양식, 문화 정체성, 이중문화 자기효능감의 조절효과를 검증하는 것이다. 이를 위해 재캐나다 한국인 대학생 214명의 설문지 자료를 사용하여 위계적 회귀분석을 실시하였다. 연구의 결과는 다음과 같다. 첫째, 재캐나다 한국인 대학생들이 지각하는 차별감은 그들의 우울수준을 유의미하게 증가시켰다. 둘째, 대처양식의 세 유형인 사려형 대처, 억제형 대처, 반동형 대처 모두 지각된 차별감과 우울의 관계에서 유의미한 조절효과를 나타내지 않았다. 셋째, 지각된 차별감, 억제형 대처, 모국문화 정체성의 삼원 상호작용은 우울에 유의미한 영향을 미쳤다. 즉 모국문화 정체성이 낮은 경우 지각된 차별감의 수준이 높을 때, 억제형 대처를 많이 사용하면 우울의 수준도 상응해서 증가하나, 억제형 대처를 적게 사용하면 우울수준이 대폭 감소하는 것으로 나타났다. 넷째, 지각된 차별감과 사려형, 억제형, 반동형 대처의 각 유형과 이중문화 자기효능감의 우울에 미치는 삼원 상호작용 효과는 유의미하지 않았다. 논의에서 연구결과에 대한 이론적 논의와 제한점 및 제언을 진술하였다.

• 음성과학
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• 제9권3호
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• pp.35-45
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• 2002

A simple algorithm for discriminating voiced sounds in a speech is proposed. In addition to low-frequency energy and zero-crossing rate (ZCR), both of which have been widely used in the past for identifying voiced sounds, the proposed algorithm incorporates pitch variation to improve the discrimination rate. Based on TIMIT corpus, evaluation result shows an improvement of 13% in the discrimination of voiced phonemes over that of the traditional algorithm using only energy and ZCR.

• Communications for Statistical Applications and Methods
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• 제13권3호
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• pp.567-576
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• 2006

In this paper, we applied the multiblock dimension reduction methods to the classification of tumor based on microarray gene expressions data. This procedure involves clustering selected genes, multiblock dimension reduction and classification using linear discrimination analysis and quadratic discrimination analysis.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2006년도 하계종합학술대회
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• pp.243-244
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• 2006

In this study, we propose a speech/music discrimination method using spectral peak track analysis. The proposed method uses the spectral peak track's duration at the same frequency channel for feature parameter. And use the duration threshold to discriminate the speech/music. Experiment result, correct discrimination ratio varies according to threshold, but achieved a performance comparable to another method and has a computational efficient for discrimination.

• 한국음향학회:학술대회논문집
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• 한국음향학회 1994년도 FIFTH WESTERN PACIFIC REGIONAL ACOUSTICS CONFERENCE SEOUL KOREA
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• pp.879-884
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• 1994

This paper reports on several experiments carried out to find the effects of intensity difference on duration discrimination in pairs of pure tones. Pure-tone signals were presented with the modification of amplitude and duration. Duration-discrimination thresholds for the musical tones and the signals that were varied in amplitude were investigated together with those of the fixed signals. From the results, it was found that the duration discrimination tasks are affected by an intensity difference of 20 phons.

• Journal of Electrical Engineering and information Science
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• 제1권2호
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• pp.52-57
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• 1996

Detection of arcing high impedance faults has been a perplexing in the power distribution protection. Transient analysis of distribution disturbances for fault discrimination from other normal events is important for a secure protection of the power system. A simple parameter of wave form distortion quantification is used to analyze the behaviors of arcing faults and normal distribution disturbances. Theoretical perspectives of the transients were studied and actual disturbances were examined. From this investigation, a discrimination guideline based on the revised crest factor is developed. The discrimination method has a high potential to enhance the reliability and security for the distribution system protection.

• 보건행정학회지
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• 제29권4호
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• pp.454-468
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• 2019

Background: Supporting the elderly population is presented as a social issue, and it affects age discrimination, which forms a negative perception and avoids the elderly. Since age discrimination lowers the quality of life of the elderly and hinders social unity, it may be important to research related factors. This study examined the physical function as a factor that influences discrimination experiences and aimed to identify the relationship between physical function factors and discrimination experiences. Methods: In this study, we analyzed 20,225 elderly from the 2014 and 2017 survey of living conditions and welfare needs of Korean older persons, conducted nationwide among older than 65 years. Physical function factors are activities of daily living, instrumental activities of daily living, sight discomfort, hearing discomfort, chewing discomfort, and leg strength as factors of interest. We performed multivariable logistic regression that reflected survey characteristics, adjusting for socio-demographic factors, health related factors, and social-support factors. Results: The number of elderly who faced discrimination experiences was 1,175 (5.8%). The results showed that the odds ratio of facing a discrimination experience in the dependent group was significantly higher compared to the independent group when being transferring out of the room (4.05; 95% confidence interval [CI], 1.50-10.88) and difficulty in hearing (1.25; 95% CI, 1.05-1.49). Even with respect to chewing ability, which was significant in models 1 and 2, they face more discrimination experiences (1.30; 95% CI, 1.11-1.53). Conclusion: These research results indicate that an important strategy for preventing age discrimination is to understand the physical function conditions of the elderly and promote the physical functions of the elderly related to transferring, hearing, and chewing; it is necessary to develop a practical intervention plan that considers these aspects.

• 한국보건간호학회지
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• 제34권2호
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• pp.277-288
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• 2020

Objectives: This study examined the relationship between discrimination perception and occupational stress of school nurses to verify the mediating effects of self-esteem on the relationship between the perception of discrimination and occupational stress. Methods: This study was a secondary analysis of the data collected by the Public Health Nurses Association of D city from regular school nurses working in elementary, middle, and high schools in September 2017. The data were analyzed using the SPSS 25.0 Statistics Program, and multiple regression analysis was used to analyze the effects of self-esteem on the relationship between the perception of discrimination and occupational stress. Results: The occupational stress of school nurses was higher with higher discrimination and lower self-esteem, and the moderating effects of self-esteem (β=-.152, p=.016) was confirmed between the perception of discrimination and occupational stress (F=30.117, p<.001). Conclusions: Based on the results of this study, it is necessary to prepare a method for managing occupational stress due to job demands of school nurses as well as organizational measures to reduce discrimination in organizations. In addition, efforts to develop various programs focusing on improving the self-esteem of school nurses are required.