• Title/Summary/Keyword: Computer-Aided Education

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Regional Differences in Food Intake and Diversity among Korean College Students of a Nutrition Education Course through the Internet (인터넷 영양교육에 참여한 전국 대학생의 식품섭취 및 다양성에 관한 평가)

  • 이정희;장경자
    • Korean Journal of Community Nutrition
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    • v.8 no.1
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    • pp.41-52
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    • 2003
  • The purpose of this study was to evaluate the diversity of food intake among Korean college students of a nutrition education course through the internet. Subjects were 796 nation-wide college students (male 278, female 518). A dietary survey collected from 3 day-recalls were analyzed by the Computer Aided Nutritional Analysis Program. Diet variety was assessed by DDS (dietary diversity score), MBS (meal balance score), and DVS (dietary variety score). The foods consumed in largest amounts were rice (54.42 g), citrus fruit (36.41 g) and milk (30.91 g). The foods consumed most frequently were rice (65.28%), garlic (63.65%) and salt (63.64%). The average food intake was 1325.3 g (male 1420.6 g, female 1274.1 g), with vegetable and animal food comprising 78.5% and 21.5% of total food intake, respectively. The consumption of the major five food groups comprised DDS, and 66.0% (male 56.1%, female 71.3%) of subjects had a DDS of 5 and 27.4% (male 33.5%, female 24.1%) of subjects had a DDS of 4..Groups most frequently missed were dairy products (56.5%) and fruits (41.6%). The average of MBS were 10.88 (11.61 in Seoul, 11.03 in Kyungsang, 10.88 in Chungcheong, 10.85 in Incheon, 10.57 in Kyunggi) in male and 11.08 (11.47 in Kyungsang, 11.20 in Seoul, 11.18 in Kyunggi, 10.82 in Chungcheong, 10.64 in Incheon) in female. Male students in Seoul (18.2) and female students in Kyungsang (18.6) had the greater number of consumed food items. Subjects who had higher DDS had significantly higher DVS (p < 0.001). Based on these results, the food intake of the subjects regarded as not adequate, especially with regards to the dairy and fruit groups. Considering their nutritional characteristics, dietary guidelines as well as education should be made to improve the food intake and include various foods in their diet.

Development of Theocratical Model and Evaluation Tool for Learning Epistemic Frame using Computer based Learning System (컴퓨터기반 교육시스템의 인식론적 프레임 학습을 위한 이론모형 구축과 평가도구 개발)

  • Choi, Younyoung;Seo, Donggi;Jung, Sunho
    • The Journal of the Korea Contents Association
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    • v.18 no.3
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    • pp.354-360
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    • 2018
  • Recently, the computer aided learning system has promoted a new educational concept and education system. The purpose of this study is to construct a theoretical model for the epistemic frame and evaluation tool which is emphasized according to the 21st century. Specifically, first, this study conducted a domain analysis of epistemic frame. Second, this study developed an evaluation tool to measure epistemic frame. Finally, the evaluation tool is examined in terms of validity and reliability using factor analysis and Cronbach's alpha. As a result, the theoretical model was presented through the consultation of the Advisory Group and the evaluation tool was empirically validated. We expect that this study will provide a useful information to researchers and practitioners who want to develop a computer based learning tool for learning epistemic frame.

A Comparative Study of Actuality of Elementary and Middle School Teachers' Perception on Cyber Home Learning System (사이버 가정학습체제에 대한 초중등 교사의 인식실태 비교연구)

  • Jung, Ju-Young;Kim, Hyang-Sook
    • Journal of The Korean Association of Information Education
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    • v.11 no.3
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    • pp.339-347
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    • 2007
  • Along with developments of information and communication technologies, internet has spread not only all over the society, but also our everyday life deeply. Recently, requirements for e-learning using internet in the educational aspect have a great influence on the changes of school educations. Cyber Home Learning System, in particular, has been implemented throughout the nation for the purpose of reducing private expenditure for education and promoting substantial improvements in quality of public education. However, there have been exposed many problems with respect to quality of operations and managements of the system comparing to its quantitative growth, and so, at this point in time, researcher conducted analysis of actuality of perceptions of both elementary and middle school teachers with a focus on the case of S System in K province. To test this, total 278 participants were sampled from the elementary schools (139 teachers) and the middle schools (139 teachers) located in K province and were asked to complete a survey and the results therefrom were analyzed accordingly. Results from the analyses revealed that elementary school teachers responded more positively than other respondents in the most areas, including supply of a variety of learning contents of S System, quality of contents, and providing for helps insomuch as to complement school works, etcetera. In addition, researcher has found out that, to make the system become all the more efficient, it shall be required to establish a strategy in order to induce students' interest in the system, as well as to construct infrastructure for facilitating the use of computer. And that there are also needs for continuous supports from both the school and the education authority concerned, and for method of flexible operation of curriculum.

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Development of an Edutainment Contents using Wiimote Controller for Children with Visual Perception Disabilities (위모트를 활용한 시지각 장애아동 교육 콘텐츠개발)

  • Yoo, Sang-Jo;Han, Kyeong-Im;Kim, Bong-Seok;Park, Dong-Gyu
    • Journal of Korea Multimedia Society
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    • v.13 no.10
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    • pp.1547-1556
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    • 2010
  • Until now, many Computer Aided Education(CAE) contents are developed for kids and children with disabilities The contents cover various types of training, including visual perception training, intelligence development training, and literature education areas. Major problems on those contents are those contents requires long training time on desktop machine, which deteriorates human activities. These problems also cause inaction syndrome for young kids and children with disabilities. Solving this problem, we require a human motion sensing contents on touch screen or touch board, which interacts with a trainees and enhancing activity, collaboration and immersiveness. We implement and develope an education contents interacts with a trainee using beam projector or screen and IR(Infra-Red) pens using wiimote controller sensing technology.

A Study on the Development of Method for Measuring Nutrient Intakes at the Worksite (직장인을 위한 식사섭취 조사법 개발에 관한 연구 (II))

  • Kim, Yeong-Ju;Jo, Yeo-Won
    • Journal of the Korean Dietetic Association
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    • v.5 no.2
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    • pp.137-144
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    • 1999
  • In Korea, the practice of nutrition education program at the worksite has not yet been implemented, especially for the workers who are at risk for health. Accordingly, the worksite nutrition program, education, and nutrition counseling are necessary. In this study, the worksite nutrition program was developed from June, 1997 to May, 1998. For this program, we surveyed the workers' age and the levels of education, income and physical activity. We developed the proper dietary intake questionnaire to evaluate the employees' nutritional status and the nutrition index which is a simple tool to assess nutrient intakes of the employees at the worksites. To demonstrate the validity of the developed nutritional assessment tools, the CAN(Computer Aided Nutritional) program and Hyunmin system developed by the Korean Nutrition Society and the Korean Dietetic Association respectively, were used as references. The result of the validity test for the dietary assessment method that we have been developed revealed that the method was valid showing no significant difference among the various methods. However, the carbohydrate intake measured by the CAN program was higher than those of others. The validity test results for the nutrient index method showed that there was no significant difference among the methods, except the carbohydrate intake measured by the Hyunmin system was lower that those of others. As a result, we concluded that the dietary assessment methods that we had been developed, were valid method to measure the nutrient intakes of the employees at the worksites.

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Qualitative Research on Communication Education of Dental Hygienist by Focus Group Interview (포커스 그룹을 이용한 치과위생사 커뮤니케이션 교육에 관한 질적연구)

  • Choi, Jin-Sun;Ma, Deuk-Sang;Jung, Se-Hwan;Park, Deok-Young
    • Journal of dental hygiene science
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    • v.18 no.2
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    • pp.113-123
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    • 2018
  • The purpose of this study to review clinicians and educators on required communication education factors of dental hygienists using qualitative research by focus group interview. The participants were dentists, dental hygienists and professors. A questionnaire was developed on communication education to collect data. The collated data derived concepts related to communication education. After transferring the data, were analyzed by open coding and axial coding using computer-aided qualitative data analysis software. Focus group emphasized that higher education on communication should be preceded before they are put into the clinical field. However, the dental hygienist emphasized experiential education in the clinical field, the professor emphasized additional education for continuity of communication education even after graduation. Besides, focus group emphasized role play, and the professor required that the standardization of the dental communication training courses objectives and role play modules and the education environment infrastructure should be established to implement communication education efficiently. The categories of communication education stated in the focus group were time and method for the dental communication training courses, dental communication training courses standardization and educational environment, of evaluation of communication competency, of perception of the dental communication training courses. This study identified the communication education development to conform with the needs of the clinical field strengthen and cultivate communication competency dental hygienists based on factors of communication education emphasized in focus groups.

Design and Applications of Inquiry-Style Geometry Program based on Operating Activity (조작활동 중심의 탐구형 기하 프로그램 설계 및 활용)

  • Kwon, Bo-Seob
    • The Journal of the Korea Contents Association
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    • v.8 no.7
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    • pp.103-111
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    • 2008
  • There have been a few mathematic education programs that based on operating activity considering cognitive development level of elementary student, although we can find a variety of computer-aided mathematic teaching methods for elementary school. The purpose of this paper was to examine the effect of mathematical program based on operating activity developed as teaching materials in plain figures. As results of the post-achievement test and attitude test, it was found that the math program has been improved the achievement positively. By a result that inspects mathematical learning attitude of the experiment group, it was found that variable factors such as interest, confidence, self-learning were changed significantly more important in statistics.

Development for the Index of an Anesthesia Depth using the Power Spectrum Density Analysis (뇌파 스펙트럼 분석에 의한 마취 심도 지표 개발)

  • Ye, Soo-Young;Baik, Swang-Wan;Kim, Jae-Hyung;Park, Jun-Mo;Jeon, Gye-Rok
    • Journal of Biomedical Engineering Research
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    • v.30 no.4
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    • pp.327-332
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    • 2009
  • In this paper, new index was developed to estimate the depth of anesthesia during general anesthesia using EEG. Analysis of the power spectral density(PSD) of EEG was used to develop new parameters because EEG signal tends to have slow wave during anesthesia. Classifier for index creator was developed by using SEF, BDR and BTR parameters, which are calculated by power spectral density. EEG data were obtained from 7 patients (ASA I, II) during general anesthesia with Sevoflurane. The anesthetic depth evaluation indexes ranged from 0 to 100. The average were $86.05{\pm}10.1$, $36.98{\pm}20.2$, $15.33{\pm}13.6$, $50.87{\pm}16.5$ and $87.72{\pm}11.7$ for the states of pre-operation, induction of anesthesia, operation, awaked and post-operation, respectively. The results show that while the depth of anesthesia was evaluated, more accurate information can be provided for anesthetician.

Basic Design for Development of IMV for MCV (MCV용 IMV개발을 위한 기초설계)

  • Huh, Junyoung;Jung, Gyu Hong
    • Journal of Drive and Control
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    • v.15 no.3
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    • pp.49-56
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    • 2018
  • Construction machinery is used to improve productivity in civil engineering work and construction work, and it is a lengthy operation, and consumes considerable fuel to cope with large loads. As a result, productivity and fuel consumption of the construction machine become the main deciding factors. In the hydraulic system of the excavator, the main control valve is the most critical position for control. The flow distribution for control performance is achieved by the metering orifice, that causes critical energy loss. To improve this, we propose a combination of a three port proportional pressure reducing valve and a poppet type flow control valve as an IMV to replace the existing spool type MCV. To validate the proposal, we analyze static characteristics by modeling mathematically, and analyze dynamic characteristics. Simulation using the AMESim software on the regeneration circuit of the boom cylinder up-down operation, verifies the energy-saving effect compared to the existing MCV when IMV is used.

Precise Positioning of Autonomous Underwater Vehicle in Post-processing Mode

  • Felski, Andrzej
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • v.1
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    • pp.513-517
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    • 2006
  • Autonomous Underwater Vehicles plays specific role in underwater investigation. Generally, this kind of vehicles will move along a planned path for sea bottom or underwater installations inspections, search for mineral deposits along shelves, seeking lost items including bottom mines or for hydrographic measurements. A crucial barrier for it remains the possibility of precise determination of their underwater position. Commonly used radionavigation systems do not work in such circumstances or do not guarantee the required accuracies. In the paper some new solution is proposed on the assumption that it is possible to increase the precision by certain processing of a combination of measurements conducted by means of different techniques. Objective of the paper is the idea of navigation of AUV which consists of two phases: firstly a trip of AUV along pre-planned route and after that postprocessed transformation of collected data in post-processing mode. During the processing of collected data the modern adjustment methods have been applied, mainly estimation by means of least squares and M-estimation. Application of these methods should be associated with the measuring and geometric conditions of navigational tasks and thus suited for specific scientific and technical problems of underwater navigation. The first results of computer aided investigation will be presented and the basic scope of these application and possible development directions will be indicated also. The paper is prepared as an partial results of the works carried out within a framework of the research Project: 'Improvement of the Precise Underwater Vehicle Navigation Methods' financed by the Polish Ministry of Education and Science (No 0 T00A 012 25).

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