• 한국실내디자인학회논문집
• /
• 제23권6호
• /
• pp.42-50
• /
• 2014

The purpose of this study is to analyze the change of perception and to measure the degree of interaction between the lighting and the finishing materials according to preference types and the impacted factors to the spatial sensitivity of users. To do that, the this change was grasped through the experiment with Likert Scale and ANOVA of SPSS program to the simulated images. The result of this study is as following. Firstly, the personal difference in the perception of space comes from 'attention' in information processing process. The degree of the perception of users change strongly by lighting in the space expressed the 'modern natural'. Secondly, the atmosphere and the degree of perception are different in the preference of users to the spatial sensitivity and in impacted factors which are thought by users in the space sensitives. The users who prefer the 'decoration' feel the mood more strongly in the space. But the users who prefer the 'active' and 'intimacy' are opposite to that. The difference to the degree of perception is greater in the 'classic natural' than the others under the lighting turns on. Thirdly, an in-depth research which is considered of the interaction among the various factors is needed for finding the design methods for inducing the sensitivity of users in the space. And the ranking of the impacted factors should be understanded and applied to the research regarding the changes of perception in the space. Finally, this study has the limitation to be adapted to all of the situation for the space design methods. But this will be a basic data to study the design methods for users's sensitivity in the space.

• 한국정보통신학회:학술대회논문집
• /
• 한국정보통신학회 2017년도 춘계학술대회
• /
• pp.249-251
• /
• 2017

과거에는 소프트웨어 보안이 크게 중요하지 않게 생각해왔다. 그러나 소프트웨어를 공격하는 기술은 시대를 넘어 빠르게 성장하고 있으며 이로 인한 소프트웨어 산업의 성장은 감소하고 저작권자의 이익은 점점 감소하고 있다. 그래서 본 연구에서는 PE 포맷 조작을 통해 소프트웨어 크랙을 방지하는 것을 제안한다. 보통 해커는 프로그램을 정적으로 먼저 분석을 해서 1차적인 정보를 얻는데 PE 포맷의 약간의 조작만으로 정적 분석을 방해할 수 있다. 그리고 PE 포맷 조작을 통해 해당 프로그램에 여러 가지 보안 코드가 삽입 가능하며 이를 통해 해커들의 디버거를 이용한 접근이나 동적 분석을 방해 할 수 있다.

• 한국수학교육학회지시리즈E:수학교육논문집
• /
• 제31권1호
• /
• pp.17-48
• /
• 2017

본 연구는 수학불안으로 인해 자신의 충분한 수학적 역량을 발휘 하지 못해 고민하는 일반계 고등학교 2학년 남학생 1명의 수학 불안 치유 사례연구이다. 본 연구에서 수철이(가명)는 수학시험과 관련해서 불안이 높게 나타났다. 이를 치유하기 위해 인지적 처치와 행동적 처치를 실시하였다. 첫째, 인지적 처치로서 자신의 문제 이해하기, 사고 기록지 작성하기, 중간 믿음 바꾸기, 핵심 믿음 바꾸기를 실시하였고 처치과정 속에서 어떠한 인지적 정의적 반응과 변화가 일어나는지 분석하였다. 둘째, 행동적 처치로서 분할노트 작성하기와 동료학습을 실시하였다. 분할노트 작성하기는 노트를 이용하여 나만의 문제를 찾아서 스스로 해결하게 하는 것으로서 이 과정 속에서 어떠한 인지적 정의적 반응과 변화가 일어나는지 분석하였다. 또한 수철이를 힘들게 하는 지나친 경쟁심과 승부욕이 동료학습을 하면서 어떻게 인지적 정의적으로 반응하고 변화하는지 살펴보았다. 연구결과, 수철이의 수학시험불안은 많이 감소되었고 그 밖의 다른 요인들도 감소하였다. 또한 어렵게 느껴지는 수학문제에 도전하여 해결함으로써 자신감을 회복하였고 지나친 승부욕과 경쟁심도 협동심과 배려심으로 승화한 것으로 나타났다.

• 한국치위생학회지
• /
• 제20권5호
• /
• pp.707-716
• /
• 2020

Objectives: This study aims to provide basic data for high-quality dental services. In addition, we will promote the operation of preventive dentistry that implements preventive measures. It was conducted to study the change of patient's treatment behavior and treatment cost due to the discontinuation of preventive dentistry in university dental hospitals. Methods: This study collected data using the integrated medical information system of the C University Dental Hospital. From September 1, 2017 to August 31, 2019, data were analyzed using frequency, percentage, mean, standard deviation, chi-square test using SPSS version 24.0 statistical program, and T-test. Results: There was a significant difference in the number of preventive dental treatment cases from 58.3% of preventive dental operation periods to 41.7% of preventive dental operation periods. As a result of comparing the medical expenses, the total medical expenses during the preventive dental operation period decreased from 521,308,872 won to 379,724,995 won during the discontinuation period, 141,583,877 won. The number of medical treatments by treatment behavior decreased 3,835 (28.4%) from a total of 13,520 preventive dental operation periods to 9,685. Conclusions: This study is meaningful as the first study to confirm the change in the treatment behavior and the change in the cost of treatment due to the discontinuation of the operation of preventive dentistry at university dental hospitals. In conclusion, it is thought that there is a possibility of the lack of accessibility and the limitation of professional preventive care due to the discontinuation of preventive dentistry.

• 한국치위생학회지
• /
• 제14권2호
• /
• pp.231-240
• /
• 2014

Objectives : The purpose of this study was to examine the oral health programs for children of the low income classes in order to prevent oral health problems and to provide the effective oral health programs in community children's centers. Methods : The subjects were 464 teachers in community children's centers in Seoul, Incheon, Gyeonggi-do, Chungcheongbuk-do, and Jeollabuk-do. Results : There were differences between the regions(p<0.05) in oral health guidance among teachers in municipal and provincial community children's centers. The oral health education was considered as the most important thing in those who had more than 6 years career(71.8%), and followed by those having less than five years career(61.3%) and those having two years career(53.8%)(p<0.05). Although many children registered the program and newsletter was sent to the children's homes, but 70% of the children did not brush their teeth regularly(p<0.05). Regardless of region, gender, teaching career, and number of enrolled children, 90 percent or more people found that it necessary for community children's centers to collaborate with dental clinics. There were gender differences between the male and female(p<0.05). Male accounted for 42.4% response rate and female accounted for 36.4%. Approximately About 48.5% of male and 61.6% of female thought that the oral health program is the most important thing(p<0.05). Conclusions : The development of the customized oral health program is the most critical factor to the oral health behavior change in the children in the community children's centers and public dental clinics.

• 대한디지털의료영상학회논문지
• /
• 제9권2호
• /
• pp.17-21
• /
• 2007

The purpose to recognize change of average pixel value of acquisition image by control panel's density and right set up method of speed (sensitivity) and exposure dose(mAs) change that dose in purpose digital flatpanel-detector. X -ray generator DHF-158H2(Hitachi, Japan). Detector CXDI 4OG(Canon, Japan), 12 : 1 grid and exposure ray 135 kVp, 250 mA, 10 ms. focus-detector distance 180 cm and used AEC mode. DICOM reflex analysis program used image J that is digital reflex analysis program that offer in United States America National Health Center(National Institutes of Health : NlH) phantom used chest phantom(Anthromorphic : Flukebrome.medicaI USA). An experiment chest phantom that consist by formation equivalence material use because density value( -3${\sim}$+3) in X-ray control panel and seep that is speed step(slow, medium, fast) each control experimentalize. image analysis reflex neted through an experiment using image j each image compare. These was change in dose according to slow, medium, fast and density's change in an experiment result. According to detector sensitivity and density condition set, dose was relationship dissimilarity 500% from 200%. The dose came highest when is density +3 to slow. and dose more increases gray scale's extent could know that rise. Could know whether how equipment set is important through this experiment. cause of disease which change by digital radiography system forward is thought to increase more, it is considered that suitable education by this and continuous interest about equipment need absolutely.

• 한국식생활문화학회지
• /
• 제18권2호
• /
• pp.139-150
• /
• 2003

The objective of this study consists in promoting seafood consumption by increasing its intake opportunities for children through analysis of seafood using frequency in the elementary school lunch program. For that purpose, randomly sampled out from elementary schools through the county were 155 dietitians and 5th grade 3581 children, on whom a mail survey was conducted to analyse their seafood using frequency, and preference, and lunch menu by seasons. Results of this study are as follows : The seafood using frequency of the respondents represented the highest value in one or two times a week, while obstacles in seafood use presented high values in the safety of food by 71.6% and children preference by 68.4%. The seafood intake frequency of the respondents showed the highest value in three or four times a week by 34.5% and the places of seafood intake indicated the highest response in the home by 43.5% and then school lunch and dining out. The dietitians responded that children for the most part had not a preference for seafood, whereas the children pointed out average by 46.2%. As for reasons for avoidance of seafood, the dietitians expressed the highest response in it depends cooking methods by 45.8%, while the children because of its peculiar taste and smell by 42.1%. Their required improvement showed the highest response in the taste improvement by 51.8%. The children most preference for seafood that dietitians thought included fried Alaska pollack and shrimp cutlet, while dislikes braised mackerels and seasoned cold jelly fish. Cooking methods frequently used were represented in order of soup, hot soup, and stew, and the children's preferred cooking method was from fried food. Above results suggested that the intention to increase seafood using frequency is needed to at the time of planning the menus so that more seafood-providing opportunities can be given. The development of cooking methods is urgently needed that can change the taste or the smell of seafood, and concurrently with this conveniences be taken into account in eating such as elimination of bones, etc. as early as the states of purchase or checking of seafood. The reflection of the preferred cooking methods is thought to contribute to the enhancement of satisfaction with the seafood as well as to the reduction of food remnants. The recommendation of intake of low preference but nutritionally good seafood is required to be expanded in nutrition education.

• 한국지역사회생활과학회지
• /
• 제22권2호
• /
• pp.299-310
• /
• 2011

To establish good dietary behavior for middle school students, this study was conducted to analyze the needs of nutrition education and eating attitudes of 373 middle school students(boys 171, girls 202) in Hwaseong city. Using questionnaires, results were gathered and analyzed. Dietary behavior, food group intake and the needs of nutrition education were scored by a five-point Likert scale. Chi-square and student t-test were done for significant gender difference. The correlation between the needs of nutrition education with dietary behavior and food group intake was obtained by Pearson's r. The dietary attitude of 'try to eat first' and 'eating fast' were higher score in boys than in girls(p<0.05). Most of the students thought they didn't have any nutritional problems(71.8%). Nutrition education was considered necessary(54.9%) for proper growth and development(53.0%) in middle school. But 45.1% of students did not suggest by the reasons of 'short time to change'(28.2%), 'more effective in home'(27.4%). The appropriate time of nutrition education was pre-school(28.2%) or elementary school(27.4%), once a week(boys 51%, girls 71.3%) in frequency(p<0.001), and the information acquired by TV/Radio(30.0%) and internet(26.6%). Students(46.0%) wanted to know about 'growth and nutrition'. They were to learn information on the 'healthy growth'(4.10) and 'adolescent nutrition'(4.03). The vegetables group consumption and the thought of dietary attitude 'try to modify bad eating habits' were correlated with almost all categories of desired nutrition education. Through these results, good eating habits would be attained by nutrition education. A nutrition education program would require an expert teacher for middle school students.

• 한국학교수학회논문집
• /
• 제2권1호
• /
• pp.55-66
• /
• 1999

In mathematics education, teaching-learning activity can be divided largely into the understanding the mathematical concepts, derivation of principles and laws acquirement of the mathematical abilities. We utilize various media, teaching tools, audio-visual materials, manufacturing materials for understanding mathematical concepts. But sometimes we cannot define or explain correctly the concepts as well as the derivation of principles and laws by these materials. In order to solve the problem we can use the computer. In this paper, ′the process of the length of curve being equal to the sum of the vectors when intervals get smaller′ and ′the process of calculating volume of spinning curve by using definite integral.′ Using the computers is more visible than other educational instruments like blackboards, O.H.Ps., etc. Also it can help students with solving mathematical problems intuitively. Consequently more effective teaching-learning activity can be done. Usage of computers is the best method for improving the mathematical abilities because computers have functions of the immediate reaction, operation, reference and deduction. One of the important characters of mathematics is accuracy, so we use computers for improving mathematical abilities. This paper is about the program focused on the part of "the application of definite integral", which exists in mathematical curriculum the second and third grade of high school. When this study is used for students as assisting materials, it is expected the following educational effect. 1. Students will have precise concepts because they can understand what they learn intuitively. 2. Students will have positive thought by arousing interests of learning because this program is composed of pictures, animations with effectiveness of sound. 3. It is possible to change the teacher-centered instruction into the student-centered instruction. 4. Students will understand the relation between velocity and distance correctly because they can see the process of getting the length of curve by vector through the monitor. For the purpose of increasing the efficiencies and qualities of mathematics education, we have to seek the various learning-teaching methods. But considering that no computer can replace the teacher′s role, teachers have to use the CIA program carefully.

• 대한화학회지
• /
• 제59권5호
• /
• pp.454-465
• /
• 2015

본 연구의 목적은 액체 혼합물의 끓음에 대한 예비 화학교사의 인식을 알아보는 것이다. 이를 위해 사범대학에 재학 중인 예비 화학교사 65명을 대상으로 에탄올 수용액의 끓는점과 가열 곡선 유형, 용액이 끓을 때의 기포 속 입자 모형 등에 대한 설문조사를 실시하고, 이 중 9명을 면담하였다. 그 결과, 50% 몰분율의 에탄올 수용액의 끓는점에 대한 예비교사의 인식은 ‘78-100 ℃ 구간에서 끓기 시작한다’는 과학적인 응답이 52.3%이었고, ‘에탄올 끓는점인 78 ℃에서 끓기 시작한다’고 생각하는 응답이 35.4%이었다. 전자의 경우, 물과 에탄올의 부분 증기압력의 합이 순수한 에탄올의 증기압력보다 작고, 물의 증기압력보다 커진다는 과학적인 설명에 비해 ‘끓을 때 에탄올 분자가 물 분자와의 인력이나 진로 방해 등을 통해 순수한 끓는점보다 높아진다’고 생각하는 설명이 많았다. 후자의 경우, 에탄올이 먼저 끓는데, 끓는점은 물질의 고유성질이므로 혼합물이 되어도 변하지 않는다고 생각하였다. 액체 혼합물의 가열 시 온도변화에 대해서는 끓기 시작하면서 온도가 증가하다가 일정한 온도가 된다고 생각하는 응답자가 69.2%이었으나 이들은 에탄올이 끓으면서 기화되어, 액체상에 물의 비율이 높아지기 때문에 점점 끓는점이 증가하게 된다는 설명을 하거나, 에탄올은 상태 변화하지만 액체로 남아있는 물이 열에너지를 흡수하기 때문에 혼합액체의 온도가 증가한다는 설명을 제시하였다. 상당수의 예비교사는 두 개의 일정한 온도 구간이 나타난다는 응답을 하였는데 이들은 액체 혼합물의 각 성분이 자신의 고유한 끓는점에서 상태변화를 한다고 생각하고 있었다. 또한, 액체 혼합물의 증발과 끓음 상황에서 기체상에서의 입자 모형을 분석한 결과, 증발 상황에서는 대부분의 예비교사가 기체상에 물과 에탄올이 동시에 존재하는 모형을 그렸으나, 끓음 상황에서는 기체상에 에탄올만 존재하는 모형을 그리는 비율이 증가하였다. 결과를 바탕으로 예비교사들이 혼합액체의 끓음에 대해 가지고 있는 대체적 개념과 이들의 인식 개선을 위한 시사점을 논의하였다.