• 복식문화연구
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• 제17권5호
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• pp.807-818
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• 2009

This study is to present a female high school summer blouse with high movement functionality and satisfying appearance, surveyed the students for their understanding of summer blouse. Experimental study's research method was questionnaire survey. By using questionnaires, the satisfaction and comfort of each region of the current worn summer blouse was analyzed. The results of this research are as follows. After surveying 371 high school students in the Daejeon region on the currently worn summer blouse comfort levels, 48.4% showed dissatisfaction about the width of the sleeves and the armpits and over 93% wanted the use of elastic materials as an alternative. After investigating the summer blouses' mending state, 41% of students that mending their clothes chose the alternation of reducing the overall silhouette of the blouse in all areas. This reflects the female high school students' mentality that thin body shape is the ideal.

• 한국지구과학회지
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• 제35권6호
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• pp.484-497
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• 2014

이 연구는 판 구조론에 대한 학생들의 개념을 알아보는 것이다. 이를 위해 충청도에 위치한 고등학교 2학년 70명의 학생들을 대상으로 판 구조론에 대한 시각적 표상의 개념 검사를 실시하였으며, 이중 10명의 학생들을 대상으로 반구조화된 면담을 진행하였다. 연구 결과는 다음과 같다. 연구 참여자들은 판 구조론을 학습한 후에도 용어 및 색상의 의미, 판의 이동, 판의 경계, 용융의 위치 및 원인, 맨틀의 물리적 상태 및 판 운동의 원동력과 관련된 대안 개념을 가지고 있으며, 학생들이 가진 색상의 의미, 맨틀의 물리적 상태, 판 운동의 원동력 개념들은 유기적으로 관련되어 있었다. 또한 판 구조론 학습에 사용되는 시각적 표상은 용어, 판의 경계, 용융의 위치 및 맨틀의 물리적 특성에 대한 학생응답에 영향을 주었으며, 판 구조론 학습에서 학습자에게 대안 개념을 유발하는 시각적 표상의 요소들이 있는 것으로 나타났다.

• Smart Structures and Systems
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• 제29권4호
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• pp.641-652
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• 2022

High-rise structures prone to large vibrations under the action of strong winds, resulting in fatigue damage of the structural components and the foundation. A novel compound damping cable system (CDCS) is proposed to suppress the excessive vibrations. CDCS uses tailored double cable system with increased tensile stiffness as the connecting device, and makes use of the relative motion between the high-rise structure and the ground to drive the damper to move back-and-forth, dissipating the vibration mechanical energy of the high-rise structure so as to decaying the excessive vibration. Firstly, a third-order differential equation for the free vibration of high-rise structure with CDCS is established, and its closed form solution is obtained by the root formulas of cubic equation (Shengjin's formulas). Secondly, the analytical solution is validated by a laboratory model experiment. Thirdly, parametric analysis is conducted to investigate how the parameters affect the vibration control performance. Finally, the dynamic responses of the high-rise structure with CDCS under harmonic and stochastic excitations are calculated and its vibration mitigation performance is further evaluated. The results show that the CDCS can provide a large equivalent additional damping ratio for the vibrating structures, thus suppressing the excessive vibration effectively. It is anticipated that the CDCS can be used as a good alternative energy dissipation system for vibration control of high-rise structures.

• 보건의료생명과학 논문지
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• 제9권2호
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• pp.373-381
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• 2021

본 연구는 SUKI 대체요법의 유효성과 두피마사지의 상관관계를 살펴보고, 헤어SUKI 대체요법 적용 및 활성화에 기여하는 것을 목적으로 문헌연구를 실시하였다. 연구 방법은 첫째, SUKI 대체요법의 개념, SUKI 대체요법 특징, SUKI 대체요법 시술시 주의할 점 등을 통해 SUKI 대체요법의 이해를 살펴보았고, 둘째, SUKI 대체요법 적용 실태 및 두피마사지요법에 관한 선행연구 등을 고찰하여, SUKI 대체요법과 두피마사지의 효과를 알아보았다. 그 결과 SUKI 대체요법은 스트레스나 우울증, 고혈압, 근육통증, 피부주름과 탄력 등 유의한 효과가 있었고, 두피마사지는 현대인들의 스트레스와 불면증과 같은 심리적, 정신적인 증상과 더불어 탈모와 두통 등의 신체적인 치료에 영향을 미치는 것으로 나타났다. 이에 헤어SUKI 대체요법에 대한 효과연구와 프로그램 활성화 통해 현대인들의 건강과 삶의 질을 향상시키는데 긍정적으로 활용될 수 있을 것으로 기대된다.

• Clinical Nutrition Research
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• 제12권3호
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• pp.229-243
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• 2023

The rising prevalence of obesity and diabetes is a significant health concern both in globally and is now regarded as a worldwide epidemic. Added sugars like sucrose and high-fructose corn syrup (HFCS) are a major concern due to their link with an increased incidence of diet-induced obesity and diabetes. The purpose of this review is to provide insight into the effects of natural sweeteners as alternatives to sucrose and HFCS, which are known to have negative impacts on metabolic diseases and to promote further research on sugar consumption with a focus on improving metabolic health. The collective evidences suggest that natural alternative sweeteners have positive impacts on various markers associated with obesity and diabetes, including body weight gain, hepatic fat accumulation, abnormal blood glucose or lipid homeostasis, and insulin resistance. Taken together, natural alternative sweeteners can be useful substitutes to decrease the risk of obesity and diabetes compared with sucrose and HFCS.

• 한국중재학회지:중재연구
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• 제23권2호
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• pp.115-139
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• 2013

In the area of legal studies, negotiation can be taught as a profession skill in legal matters such as making negotiating a contract or resolving disputes including alternative dispute resolution. Given recent changes in the legal services market such as the opening of the market, expected higher competition in the legal profession and a high expectation for lawyers' role in society, negotiation skills are an important element of legal expertise that should be developed in law schools. The main purpose of negotiation training should be to make law school students aware of their role as lawyers to help their clients resolve their problems using their legal expertise and negotiation skills in an appropriate and effective way.

• 한국수학교육학회지시리즈E:수학교육논문집
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• 제24권4호
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• pp.891-907
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• 2010

미적분학의 기본정리는 미분과 적분을 연결하는 중요한 정리로서 다양한 개념적 요소들을 포함하고 있고 그 가운데 학생들이 이해하기에 쉽지 않은 것들이 있어 교수학적 연구 대상으로 관심을 끌어 왔다. 본 연구에서는 미적분학의 기본정리의 이해의 요소와 인지과정에 바탕을 둔 교수학적 대안을 제시하기 위해 미적분학의 기본정리의 역사적 발달과정과 선행연구를 통하여 미적분학의 기본정리의 이해의 요소를 알아보고, 미적분학의 기본정리의 증명과정에서 누적함수와 변화율 개념을 분석하였다. 이를 바탕으로 미적분학의 기본정리의 지도방법에 대한 교수학적 대안과 교육적 시사점을 제안하였다.

• 한국가시화정보학회지
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• 제20권2호
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• pp.38-44
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• 2022

Due to increasingly strict emission regulations for carbon-based fuels in the shipping industry, there is a significant motivation to investigate the alternative fuel. Ammonia is one of the attractive alternative fuels as a carbon-free fuel. Since ammonia has different properties such as high vapor pressure and low boiling point compared to conventional fuels, further research into ammonia spray behavior is important. In this work, the spray characteristics of ammonia and other fluids (ethanol, n-decane) were compared by using numerical simulation. The results show that the spray characteristics of ammonia differs from those of the others due to the occurrence of flash boiling. The narrow-dispersed spray with accelerated velocity at the center have been observed for ammonia. It is also found that droplets of ammonia achieve smaller diameter with more uniform distribution, leading to better atomization behavior compared to the others.

• 조명전기설비학회논문지
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• 제25권3호
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• pp.24-32
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• 2011

[ $SF_6$ ]gas, which has an excellent dielectric strength and interruption performance, is used in various applications such as gas insulated switchgear (GIS) in substations. However, since $SF_6$ has a high global warming potential (GWP), it is necessary to find an eco-friendly alternative insulation gas. In order to examine the possibility of using alternative insulation gases for $SF_6$ in power distribution system equipment, the dielectric strength and physical phenomena of dry air in a quasi-uniform electric field are investigated experimentally in this paper. As a result, the breakdown voltages for positive polarity are higher than those for negative polarity under impulse voltage applications. The negative 50[%] flashover voltage, $V_{50}$ of dry air under conditions above 0.4[MPa] gas pressure, is higher than 150[kV], that is the basic impulse insulation level of distribution equipment. The $V_{50}$ increases linearly with increasing the gas pressure, regardless of the waveform and polarity of the applied impulse voltages. The voltage-time curves are dependent on the rise time of the impulse voltage and gas pressure. Furthermore, streamer discharge was observed through light emission images by an ICCD camera under impulse voltage applications.

• 한국식품조리과학회지
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• 제32권1호
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• pp.114-122
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• 2016

This study was conducted in order to evaluate the current status of management of students affected by food allergy and provide basic data necessary to school foodservice. A survey was conducted on 300 nutrition teachers (dietitians). For food allergy management, 79.3% of participants regularly checked on students with food allergy. The rate of providing allergy-free or alternative food for students with food allergy was 35.7%; and the reasons for not providing such food was 'lack of cooking time and employees' (69.4%). Furthermore, 79.7% of participants provided nutrition education and counseling for students with food allergy and the reasons for not providing education and counseling was 'lack of time' (59.0%). Nutrition teachers (dietitians) with experience of job training related to food allergy comprised 53.7%. The mean score of importance of food allergy management was 4.02/5.00. The items with high scores of importance of ${\geq}4.20/5.00points$ were periodical check on students with food allergy, sending newsletters or homepage posting of foods causing allergy; however, provision of allergy-free or alternative food scored 3.64/5.00 points. The score of importance was significantly higher in those who checked on students with food allergy (p<0.05), offered allergy-free or alternative food (p<0.01), and in those with experience of job training (p<0.05) than those who did not. Therefore, in order to manage students with food allergy, nutrition teachers (dietitians) require on-going training on food allergy in order to practice provision of alternative foods and administrative support to the cooking personnel and facilities.