• 한국조리학회지
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• 제23권5호
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• pp.159-168
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• 2017

This study was conducted to investigate the effects of high class korean restaurants' servicescape on customers' emotional response and intention to revisit. This study also examined the relationship among emotional and cognitive reactions and intention to revisit. A total of 216 questionnaires were analyzed using the factor analysis, reliability test, and structural equation modeling analysis. The results revealed that space, aesthetics and comfortableness were positively related to emotional reaction, and convenience and cleanliness were related to cognitive reaction. This study also found that intention to revisit was positively related to emotional and cognitive reactions. Moreover, it was found that think was positively related to emotional reaction, and feel, think, act and the related were positively related to cognitive reaction. Finally, cognitive reaction was positively related to revisit. The results of the study suggested that high-class Korean restaurant marketers should introduce or strengthen servicescape, brand reputation and experiences, which increased brand attitude or revisit.

• 한국초등과학교육학회지:초등과학교육
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• 제39권2호
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• pp.268-283
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• 2020

In this study, we aimed to look at what dilemmas of science teaching elementary school teachers experience and how they cope with their dilemmas in everyday science classes. Three elementary school teachers participated and qualitative data such as class log, class video, and interview materials were analyzed in inductive ways. The main findings are as follows. First, the dilemmas were classified based on the four factors that make up the science class; teacher, student, learning content, environment. However the dilemmas appeared to be not only one factor involved, but the rest of the factors intertwined. Thus, it was interpreted how the main factors causing the dilemmas conflicted with other factors. Second, the types of teachers' coping strategies to the dilemmas could be largely divided into 'give-up', 'stick to' and 'modified'. In some cases, teachers gave up on what they valued and did not take active action ('give-up'), teachers chose what they valued and made decisions to actively realize it ('stick to'), and in others, conflicts were adjusted by introducing new methods or elements to their classes ('modified'). Based on these results, we discussed that the teacher's dilemmas could facilitate the teacher's learning or professional development.

• 한국항행학회논문지
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• 제14권2호
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• pp.176-182
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• 2010

본 논문에서는 역 E-급 증폭기 출력 회로의 병렬 공진기를 주파수에 대해 가변되도록 회로를 구성하여 넓은 주파수 범위에서 높은 전력부가효율과 출력전력을 유지하는 방법을 제안하였다. 여기서 사용된 병렬 공진기는 동작 주파수에 따라서 Q 값은 동일하고, 가변 특성을 얻기 위해서 바렉터 다이오드를 사용하여 인덕터와 캐패시터를 만들었으며, 전류 영점 교차를 위한 인덕턴스 성분은 집중소자로 또, 위상 보상을 위한 캐패시턴스는 분포소자로 구현하였다. 역 E-급 증폭기의 주파수 가변 특성을 통해서 효율과 출력 전력을 확인한 실험 결과는 65-120MHz의 주파수 범위에서 증폭기는 최대 75%의 전력부가효율과 25dBm의 출력전력을 얻었다.

• 한국수산과학회지
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• 제52권6호
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• pp.596-604
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• 2019

Vibrio parahaemolyticus causes food poisoning, mainly via marine fisheries products. We investigated the virulence factors and drug resistance of V. parahaemolyticus isolated from fisheries products purchased from the Yeosu Fisheries Market. The isolates were identified using a variety of biochemical tests and the detection of toxR and hns gene. The presence of the virulence factor-encoding genes tdh and trh in the isolates was also investigated by PCR. The resistance of the isolates to 13 antibacterial agents was tested using the disc-diffusion method and carriage of β-lactamase genes and class 1 integrons by ampicillin-resistant isolates was investigated by PCR. Four of seventeen isolates identified as V. parahaemolyticus by biochemical tests produced a species-specific PCR band. Those isolates showed >98% 16S rRNA gene sequence homology with V. parahaemolyticus and only one isolate harbored the tdh gene. All of the V. parahaemolyticus isolates were resistant to ampicillin and amoxicillin; moreover, VPA0477, a class A β-lactamase gene, and class 1 integrons were detected. Therefore, V. parahaemolyticus from fisheries products represents a low risk to human health. Also, V. parahaemolyticus is likely to develop multidrug resistance because it has class 1 integrons.

• 한국의류학회지
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• 제20권5호
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• pp.769-782
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• 1996

This study intends to contribute to developing an effective marketing strategy targeting women in their 40's and 50's by classifying them into social classes and analyzing their wearing and purchasing behavior. The subject of this study are 344 women in their 40's and 50's living in Seoul, and the model sampling is done by allotment sampling. Modified survey based on references and former studies is used, and SAS package is used for analysis. The results of data analysis are as follows: 1. Women in their 40's and 50's are classified into 3 social classes, and the most influencial factor in the classification of social class is found to be total monthly income. 2 Clothing image of which each social class wear are proven to be significantly different among 3 classes. However, specific garment styles they wear are proven not to be significantly different. 3. Clothing purchasing behavior factors such as informants, clothing selection standards, store selection standards, place of purchase, shopping time, frequency of purchase, price of purchase, and paying methods are proven to be significantly different among 3 social classes. 4. Marketing strategies for each social class are provided based on these results.

• 가정과삶의질연구
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• 제19권6호
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• pp.113-128
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• 2001

middle and upper class families, and examine obstacles to their introduction in Korea. Since a few large-scale facilities for the elderly with dementia have been provided for only low-income families free of charge, the necessity of group homes for middle and upper class families willing to pay for such services has become an issue recently in order to lessen the burden on families, as well as to promote the well-being of the dementia victims themselves. The survey was conducted by questionnaires collected from 577 respondents from middle and upper class families. The results of the survey were as follows: The merits of the group homes were 1)decreasing loneliness of the elderly, 2)providing active and stimulating environments allowing for participation everyday life activities, and 3)lessening the emotional and physical burden on the caring families. Potential obstacles to its introduction in Korea were 1)the difficulty of finding sites to build the group home because of the negative perception of people with disabilities and a NIMBY(Not In My Back Yard) reaction to the construction of it and 2)the economic burden on the caring family. Surprisingly, the guilt factor associated with sending the parents into group homes was not considered as a big obstacle. Referring to results of this study, it is asserted that group homes for the elderly with dementia would be embraced throughout the country if Koreans could have the chance to understand what group homes are.

• 대한가정학회지
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• 제29권4호
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• pp.65-80
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• 1991

The present study was designed to find out demanding characteristics about a desk in the teenager's housing lifestyles. Documentry research and questionnaire survey methods were used in this study. Questionnaire were administered to 233 teenagers in seoul. Data were analyzed with the use SPSS PC+ package. The statistics were frequency, percentage, factor analysis, chi-squre, and cluster analysis. The major findings were followings: the teenager's housing lifestyles were categorized into the five patterns: the creative and impulsive type, the personal and private type, the economic and traditional type, the Western lifestyle-type, functional and achievement-orienented type. Teenagers in the low class of the functional and achievemental type demanded for the desk of the strong structure and materials, under 200,000 wons, and D furniture. Teenagers in the middle-high class of the personal and private type demanded for the desk of colorful and good design, 200,000-400,000 wons, and DS furniture. Teenagers in the high-low class of the Western lifestyle-type demanded for the desk of the famous trademark, 400,000-600,000 wons and S furniture. Teenagers in the middle-low class of the economic and tradition-oriented type demanded for the desk of the convinient and functional design, under 200,000 wons, and L furniture.

• 한국해양공학회지
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• 제19권5호
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• pp.50-57
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• 2005

This study has been conducted to investigate corrosivity of carbon steel, Cu, Zn and Al for one year from Sept. 2003 to Aug. 2004. A model of ISO 9223-ISO 9226 that represents the relation between metal corrosions and environmental parameters was used for atmospheric corrosion evaluations. Environmental parameters for these evaluations are time of wetness(TOW), $SO_2$ and Chloride. Corrosion rates for four metals which are exposed indoors and outdoors were measured on five locations in Jeju Island; Gosan, Seogwipo, Seongsan, Chuna hill and Jeju city. The environmental factor of atmospheric corrosion of Jeju Island for $SO_2$ class is P0, a clean area. TOW as T3 and T4 indicates that Jeju has the characteristics of a tropical area. Chlorides class within 3 km from the coast show the features of costal area as S2 and S3 classes. Chuna hill show the features of woodland as a S1 class. In Corrosion classes of each site which was measured outdoors is higher than indoors. Gosan is the highest class as the rank of C5, and indicated that they're ranked as C3 or C4.

• 한국융합학회논문지
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• 제10권3호
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• pp.149-155
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• 2019

본 연구에서는 실시간 통신 기술을 적용한 온라인 수업 토론 활동의 중층적 구조와 역동적 전개 양상을 개념적 수준에서 분석하였다. 문화역사적 활동이론에 근거하여 온라인상에서의 개별 발화를 활동체제의 산물로 간주하였으며, Alderfer의 욕구 위계이론을 주체의 동기와 의도를 분석하는 틀로 활용하였다. 온라인 수업 토론은 전체로서 하나의 활동체제로 작동하며, 특별히 활동 주체들의 욕구에 따라 기본 방향과 성격이 규정된다. 주체의 존재, 관계, 성장의 욕구에 따라 이들의 수업 토론 활동은 물리/생물적 차원, 문화/제도적 차원, 사회/관계적 차원, 협력적 지식 구성의 차원으로 규정된다. 이는 개별 활동 체제 안에 중층적으로 존재하며, 각자의 관심과 처지에 따라 배열이 달라지고, 동시에 활동체제 간의 협력과 갈등의 요인으로 작용한다. 이를 통해 집단적 토론 활동은 복잡하고 역동적으로 발전한다.

• 대한치과교정학회지
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• 제49권5호
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• pp.338-346
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• 2019

In this report, we describe the successful use of alternate rapid maxillary expansions and constrictions with a hybrid hyrax-mandibular miniplate combination and simultaneous orthodontic treatment for the management of severe Class III malocclusion due to maxillary hypoplasia in an 11-year-old girl. The devices were removed after 20 months of treatment, and the family was instructed about a careful control and retention program that should be followed in accordance with the patient's growth. The final result included the correction of Class III malocclusion with adequate function and excellent facial esthetics, which restored the patient's self-esteem and provided personal motivation. The outcomes showed good stability after 24 months of retention. The decrease in the duration of active treatment is the most important finding from the present case. Considering that facial esthetics in adolescence is a determining factor for the development of a personality and interpersonal relationships, we recommend the use of this protocol for growing patients, who will exhibit not only an improved physical appearance but also a better quality of life.