• 대한수학교육학회지:학교수학
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• 제19권4호
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• pp.775-793
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• 2017

본 연구에서는 수학에 대한 태도를 인지적 차원의 인식론적 신념과 능동적 차원의 행동 의도, 정서적 차원의 감정으로 개념화하여, 수학에 대한 태도를 측정하기 위한 검사도구를 개발하고 타당화하였다. 인지적 차원의 수학에 대한 인식론적 신념과 능동적 차원의 수학에 대한 마인드풀니스의 하부구인을 구성하기 위하여 Perry의 인식론적 신념 발달도식과 Langer의 마인드풀니스 이론을 고찰하였다. 예비조사와 본조사를 거쳐 신뢰도와 탐색적 확인적 요인분석을 실시한 결과, 본 연구에서 개발한 검사도구는 수학에 대한 태도를 측정하기에 적합함을 확인할 수 있었다. 본 연구에서 개발한 수학에 대한 태도 측정 검사도구는 수학적 지식을 수동적으로 암기하는 수학 교수학습 상황을 진단하고 그 대안을 모색하기 위한 새로운 관점의 분석적 틀을 제공할 수 있을 것이다.

• Journal of Biosystems Engineering
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• 제32권4호
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• pp.237-246
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• 2007

In this study, the microwave free-space transmission technique was used to measure the dielectric property of powdered food at microwave frequencies. The sample holder was designed and fabricated to transmit the microwave signals ranging from 1 to 15GHz. From the microwave propagation theory the equation expressing the dielectric property of powdered food was derived and validated by standard dielectrics. The dielectric property of powdered food such as wheat flour, coffee powder and milk powder was measured and analyzed. In the uniform range of bulk density of material, the real parts of permittivity of the food samples increased with the increase of moisture content, bulk density and temperature of the samples. The propagation properties such as attenuation and phase shift increased linearly as the moisture density of the food samples increased. As a measuring frequency of the moisture content, the X-band was recommended.

• 전력전자학회논문지
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• 제8권6호
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• pp.527-533
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• 2003

최근 민감한 전자부하의 사용증대에 기인하여 전직의 안정도와 신뢰도에 대한 관심이 증대되고 있다. 이에 전력풀질문제가 근래에 있어 일반적인 중요한 과제로 대두되었다. 이러한 전력품질문제를 진단하기 위하여 실효치나 FFT 등의 기법을 이용한 많은 알고리즘이 연구되어 왔으나 모든 전력품질문제를 진단하기에는 아직도 미진한 상황이다. 본 논문은 이산 웨이블릿을 응용한 전력품질문제의 진단 방법을 제안하고 웨이블릿의 이론에 대한 기본적인 설명과 함께 제안된 이론의 타당성을 입증하기 위하여 실제 전력품질문제 진단시스템을 설계하고 실험결과를 제시하였다.

• Industrial Engineering and Management Systems
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• 제13권2호
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• pp.185-192
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• 2014

This study stems from the work of Lehman et al. (Ergonomics, 2001) which concluded that standing yields better work performance, and from the growing health trend of recommending the reduction of the amount of time spent in sitting (Owen et al., Exercise and Sport Science Reviews, 2010). Lajoie et al. (Experimental Brain Research, 1993) provided an initial significant contribution to a theory that standing requires a person to control balance, equating to demand higher productive output from the cognitive system than when a person is sitting. An assumption was formulated that standing position during class is feasible and can be adopted on the belief that it might contribute positive results to students' performance. The purpose of this study is to identify whether a body position during exams tested along with exposure durations has a significant effect on college students' performance. Mathematical analysis and reading comprehension exam was used to measure the cognitive performance of the students. Two factors, position and duration, were tested for significance with two levels each subjected to six replicates. Twenty-four students from the College of Engineering and Agro-Industrial Technology, University of the Philippines Los Ba$\tilde{n}$os were randomly selected. The experiment showed that the body position during exams is a significant factor for the Math exam, but insignificant for the Reading Comprehension exam.

• The Journal of Asian Finance, Economics and Business
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• 제6권1호
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• pp.303-314
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• 2019

Indonesia's most eastern provinces enjoy special autonomy status but still suffer from the highest poverty level in the entire nation. Using the Williamson index to test the Simon Kuznets theory, this study examines development equality at pre-and post-special autonomy in the provinces of Papua and West Papua. It uses gross domestic products per capita and population from 29 regencies/cities in Papua and 13 regencies/cities in West Papua to measure the Williamson index in addition to in-depth interviews with legislative members and document analysis to validate the findings. The study found that the regional development gap before special autonomy is relatively smaller than that existing after special autonomy. The Kuznets' curve is not proven in the special autonomy era, meaning that the imposition of autonomy status has led to the creation of a higher development gap in these provinces. Although the special autonomy status has prompted an increased opportunity for political participation by the indigenous people, greater challenges are posed by the lack of human resources, poor government administration, difficult geographical access and the issue of land acquisition. Continuous development initiatives followed up with adequate supervision, greater transparency and law enforcement from government bureaucrats and legislatures are recommended to reduce the inequality.

• 대한조선학회논문집
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• 제42권2호
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• pp.80-87
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• 2005

A set of experiments was carried out for obtaining the velocity field around the hydrofoil of finite span, using a wing of the NACA 0012 section in a circulating water channel. DPIV technique was used to measure the velocity field, and the velocity measurements along the span were done for 3 speeds, 3 submerged depths, and 4 angles of attack. Experimental data are compared with the theoretical assumptions, as well as the numerical findings by Lee and Lee(2004). Special care is given to the flow near the tips and in the region close to the leading edge. Though indirect, using the measured data of the velocity, it is now possible to compare the aerodynamic and the hydrodynamic strength of the circulation distribution of a wing in the framework of the lifting-line theory.

• Journal of Information Science Theory and Practice
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• 제9권4호
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• pp.75-83
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• 2021

Mendeley reader count is good evidence of the early impact of scientific output since it appears before citations. This paper aims to scope and compare Mendeley readers of Library and Information Science (LIS) articles published from India and China. Mendeley readership data for the highly cited 1,000 articles in Web of Science are extracted using Webometric Analyst for both countries and are analysed using Excel and SPSS. The findings reveal that LIS articles that are published from China got more readers as compared to LIS articles published from India with an excess of 97 readers per paper on Mendeley. The occupational status of readers tells that PhD students are the top readers for both the countries' publications, followed by masters students. Discipline-wise readership shows that readers were spread across 29 different fields, with the highest readers from business, management and accounting, followed by computer science for both countries' publications. Location-wise readership depicts that the top engaged readers are from the United States for both the countries' publications. Finally, the study reports a positive association between citations and Mendeley bookmarks, justifying that Mendeley readership can be used to measure the early research impact of LIS scholarship in both countries.

• The Journal of Asian Finance, Economics and Business
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• 제8권5호
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• pp.1011-1017
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• 2021

An effective measure to prevent the spread of COVID-19 is wearing masks in public places. This solution is highly recommended in many countries all over the world. The objective of this study is to identify the antecedents of citizens' intention to purchase masks during the COVID-19 pandemic. Based on the theory of planned behavior (TPB), the current study analyzes attitudes toward mask-purchasing, subjective norms, and perceived behavioral control, to assess their impact on intention to purchase masks. In total, six variables are examined: attitude toward mask-wearing, subjective norms, perceived behavioral control, perceived severity, perceived susceptibility, and the intention to wear masks. Data are collected from 243 respondents in Ho Chi Minh City, Vietnam. They were processed through by factor analysis and multiple regressions. The results report that all three factors positively affect citizens' intention to buy masks in the following ascending order: Attitude toward mask-purchasing, subjective norms, and perceived behavioral control. Our study is the first research that applies TPB to investigate citizens' intention to purchase masks to during the COVID-19 pandemic. Moreover, this study provides guidelines to the Vietnamese public managers to combat COVID-19 through the purchase of masks. Shopkeepers would be well advised to observe the intentions of consumers toward masks.

• 대한간호학회지
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• 제49권1호
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• pp.1-13
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• 2019

Purpose: The purpose of this study was to develop and validate the Communication Behavior Scale for nurses caring for people with Dementia (CBS-D). Methods: Based on communication accommodation theory, the initial items were generated through a literature review and interviews with 20 experts. Content and face validity of the initial items were assessed. Data from 486 nurses caring for people with dementia were analyzed using item analysis, exploratory and confirmatory factor analysis, criterion-related validity, and internal consistency. Results: The final scale consisted of 18 items and four factors (discourse response management, interpersonal control, emotional expression, and interpretability) that explained 57.6% of the variance. Confirmatory factor analysis indicated that the theoretical model with 18 items satisfied all goodness-of-fit parameters. Criterion-related validity was shown by the Global Interpersonal Communication Competence Scale (r=.506, p<.001). Cronbach's alpha for the total scale was .88. Conclusion: The CBS-D can be used to measure the communication behavior of nurses caring for people with dementia.

• 한국군사과학기술학회지
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• 제24권1호
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• pp.22-30
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• 2021

The ship wake generated by rotation of the propeller yields changes of characteristics of sound wave such as attenuation and scattering. To develope a battle field environment simulator for military purposes, it is very important to understand acoustical properties of ship wake. Existing research results have limitations in direct application because they performed under simple conditions or model ships were applied. In this study, we developed a ship wake generation model based on the ship's geometric wake distribution theory. The model can provide spatial distribution and void fraction with various marine environments as well as ship size. Through the developed model, geometric distribution features of ship wake according to the ship's maneuvering conditions were successfully simulated. In addition, changes of the bubble void fraction with time at any location within the battle field environment were identified. Therefore, the developed model is expected to be used in the development of a simulator to measure the acoustic characteristics of the ship wake.