• 대한전기학회:학술대회논문집
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• 대한전기학회 2000년도 하계학술대회 논문집 D
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• pp.2333-2335
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• 2000

The main motivation of this research is to develop an intelligent control strategy for Activated Sludge Process(ASP). ASP is a complex and nonlinear dynamic system because of the characteristic of a wastewater, the change of an influent flow rate, weather conditions, and etc. The mathematical model of ASP also includes uncertainties which are ignored or not considered by process engineer or controller designer. The ASP is generally controlled by a PID controller that consists of fixed proportional, integral, and derivative gain values. The PID gains can be adjusted by the expert in the ASP. The ASP model based on Matlab$^{(R)}$5.3/Simulink$^{(R)}$3.0 is developed in this paper. Various control methods are applied to the ASP model and the control results are disscussed. Three control methods are designed and tested: conventional PID controller, fuzzy logic control approach to modify setpoints, and fuzzy-PID control method.

• 가정∙방문간호학회지
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• 제30권1호
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• pp.37-47
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• 2023

Purpose: This study aimed to develop an instrument that measured adherence to self-management among patients with hypertension, and to verify the validity and reliability of the developed instrument. Methods: The 34 indicators that underwent the content validity test were provided to 202 subjects for investigation The collected data were analyzed using SPSS Ver. 22.0 and Amos Ver. 25.0. Results: Five factors, 'interaction,' 'lifestyle change,' 'continuing motivation,' 'medical care', and 'weight control' were extracted, and the total cumulative variance was shown to be 61.75%. The test statistic of the regression coefficient was statistically significant according to the confirmatory factor analysis. Conclusion: It is suggested that more research is needed to generalize the instrument to suit more candidates, while continuing to refine the reliability and validity of the instrument.

• 한국과학교육학회지
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• 제28권3호
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• pp.227-240
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• 2008

Cognitive conflict is well recognized as an important factor in conceptual change and is widely used in developing constructivism-based curricula. However, cognitive conflicts can also contribute to student anxiety during learning, which, when not properly addressed, can have negative impacts on students' motivation and achievement. Therefore, instructors need to be aware of the impacts of introducing cognitive conflicts in their instruction. We need a practical instrument that can help identify the existence and features of cognitive conflicts introduced by the instruction and the resulting anxiety. Based on the literature on studies of cognitive conflicts and student anxiety, we developed a quantitative instrument, the In-class Conflict and Anxiety Recognition Evaluation (iCARE), and used it to monitor the status of students' cognitive conflicts and anxiety in Physics by Inquiry (PBI) classes. In this paper, we introduce this instrument and present the types of information that can be obtained. Research and pedagogical values of this instrument are also discussed.

• 한국초등과학교육학회지:초등과학교육
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• 제19권1호
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• pp.101-112
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• 2000

The purpose of this study was to develop the modular multimedia instructional materials emphasizing the particulate nature on the realm of matter in elementary science classes. Features of the material are as follows: 1 To be in focus on particulate model named 'phenomenal magnifying glasses' in order to change the student's belief system of continuous matter into the belief system of particulate matter . The 'phenomenal magnifying glasses' is a new instructional strategy designed to change into the view of particulate matter through facilitating the reflective thinking resulted from the simultaneous consideration of experimental phenomena(macroscopic world) and particulate model(microscopic world). 2. To introduce modular system into the instructional materials, which was consisted of 14 subunits according to the sequential instruction unit of 'molecule and molecular motion'. Each subunit was composed of 5 types of modules(module 1: motivation, module 2: experimental result, module 3: discussion, module 4: phenomenal magnifying glasses, module 5: related experiment) 3. The multimedia program was composed of 36 kinds of experimental animation and 59 kinds of computer animation materials combined with text resources, photographic materials and sounds.

• 한국경제지리학회지
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• 제23권4호
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• pp.395-407
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• 2020

이 논문은 지역산업 구조변화 동인으로 기업가적 정신의 중요성이 대두되고 있는 가운데 지방 행정수장인 정치인과 신생 중소기업 경영자의 기업가적 활동이 지역산업에 미친 영향을 파악하는데 목적을 두었다. 특히, 관련 연구가 아직 미미한 상황에서 정치인과 경영인이라는 각기 다른 유형의 기업가적 정신과 이에 대한 동기부여를 분석함으로써 부족한 실증연구의 지식격차를 좁히는데 도움을 주었다. 정치인의 기업가적 정신이 전라북도 탄소산업 육성에 미친 영향과 사양화에 접어든 섬유산업에 뛰어든 신생업체 경영인의 기업가정신을 통한 혁신적 성장사례를 통해 지금껏 지역산업 정책을 수립하는 과정에서 상대적으로 크게 고려되지 않았던 기업가적 정신의 필요성을 발견하였고, 이를 통해 정책적 함의를 도출하였다.

• 디지털융복합연구
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• 제19권8호
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• pp.235-240
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• 2021

오름의 방문객 수가 증가하고 있고 관광의 트렌드는 빠른 속도로 변화하고 있다. 오름 방문의 동기도 과거의 휴식과 쾌락의 차원에서 경험과 체험을 중점으로 변화하고 있다. 이러한 변화에 맞춰 사람들은 오름에 오를 때 단순히 운동만이 아닌 결혼, 가족여행 등과 같은 동기를 선정하여 방문한다. 하지만 관광객의 오름 방문 동기에 맞는 오름을 찾는 것은 어렵다. 본 연구에서는 이러한 문제점들을 해결하기 위하여 웹문서 검색 엔진을 통해 오름과 콘셉트에 대한 연관 수치를 실시간으로 수집하여 오름의 콘셉트를 자동으로 분류하고 홈페이지에 제공하는 시스템을 제안한다. 원하는 날짜를 선정해서 과거 혹은 선택한 기간의 오름과 콘셉트에 대한 연관 수치 확인이 가능하다. 이러한 연구를 통해서 제주의 자연유산인 오름의 방문을 활성화하여 제주 관광의 발전에 이바지할 수 있다. 향후 제주 오름만이 아닌 해수욕장이나 바다 등으로 본 시스템을 확장할 수 있다.

• 한국HCI학회:학술대회논문집
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• 한국HCI학회 2006년도 학술대회 1부
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• pp.918-925
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• 2006

Recent development of teachable agent provides learners with active roles as knowledge constructors and focuses on the individualization. The aim of this adaptive agent is not only to maximize the learner's cognitive functions but also to enhance the interests and motivation to learn. In order to establish the relationships among user characteristics and response patterns and to extract the algorithm among variables, we measured the individual characteristics and analyzed logs of the teachable agent named KORI (KORea university Intelligent agent) through the student modeling. A correlation analysis was conducted to identify the relationships among individual characteristics, user responses, and learning outcomes. Among hundreds of possible relationships between numerous variables in three dimensions, nine key user responses were extracted, which were highly correlated with either individual characteristics and learning outcomes. The results suggest that certain type of learner responses or the combination of the responses would be useful indices to predict the learners' individual characteristics and ongoing learning outcome. This study proposed a new type of dynamic assessment for individual differences and ongoing cognitive/motivational learning outcomes through the computation of responses without measuring them directly. The construction of individualized student model based on the ongoing response pattern of the user that are highly correlated with the individual differences and learning outcome may be the useful methodology to understand the learner's dynamic change during learning.

• Asian Pacific Journal of Cancer Prevention
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• 제15권24호
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• pp.10749-10755
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• 2015

Background: In both developed and developing countries; breast cancer is the major cancer observed in women. The aim of this study was to assess the effect of nursing and mammographic intervention on women with breast cancer between the ages of 50 and 70. Materials and Methods: A training program, which was quasi-experimental and had a pretest-protest design, was applied in Kemalpaaa district of Izmir, between October 2008 and August 2010. The target population was women between the ages of 50 and 70, who were registered in the list of 3rd Family Medicine Unit in Izmir's Kemalpasa metropolis. A total of 106 women who were in conformity with the study criteria participated in the study. Research data were collected through home visits that included face-to-face interviews; Ministry of Health education material and video films were modified and used for the training. Data analysis was performed through 82 women who were paired at the first and the second phase. Results: It was observed that although the rate of breast self examination significantly increased after the training (p=0.022), the rate of clinical breast examination (p=0.122) and mammographic screening (p=0.523) did not. Differences in the stages of change after training were found to be statistically significant (p<0.001) and the group showed a progression in the stages of change in general (46.3%). In women mean scores of breast cancer awareness (p<0.000), severity (p<0.000), health motivation (p<0.000) and perception of the benefits of mammography (p<0.000) increased significantly and mean score of perception of mammography barriers decreased significantly (p<0.000) after the training. Conclusions: After the training on breast cancer and mammography it was determined that nursing interventions provided positive progression of stages of change of women, affected health beliefs positively and significantly increased BSE incidences. However, it did not have a significant effect on CBE and mammographic screening.

• Journal of Magnetics
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• 제19권1호
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• pp.32-36
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• 2014

The purpose of this study was to investigate the effect of pulsed magnetic field (PMF) and low frequency low level laser (LFLLL) stimuli on acupoint LI4 (Hegu) using photoplethysmography (PPG). Our PMF system was designed to generate maximum intensity of 0.20 T at a transition time of 0.16 ms, with pulse intervals of 1 Hz. The diode laser with wavelength of 650 nm and power of 5 mW was also employed. It was observed the change of the pulsating blood volume through measuring PPG signals from both hands. These results imply that stimulating acupoint LI4 with PMF and LFLLL improves the circulation of peripheral vascular system. In particular, PMF stimulation brings a big improvement of the blood flow even with short term stimulation of 3-4 minutes compared to LFLLL stimulus.

• 대한안전경영과학회지
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• 제4권3호
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• pp.157-166
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• 2002

With the introduction of the Internet in the 21st century, the manufacturing-oriented industry, so called EMS(Electronic Manufacturing Service) specialized in manufacturing only, is rapidly expanding. From the beginning of the year 2000, the EMS industry in advanced countries around the world, whereas a strong Motivation System in which a manufacturing related staff plays a main role, has began providing the source of competitiveness. And this industry is regarded as a core of management linking productivity directly to management performance. Thus, all the manufacturing sectors including not only the electronic industry but also mechanical industry in the future are observed to be divided into two industries; a Maker strategy industry focused on marketing and development, and a EMS industry specialized in manufacturing. Therefore, we need to evaluate whether the industries should continue to support the Manufacturers Strategy or attempt to change into the EMS industry However, with no approved evaluation standard on hand as to an actual EMS industry, in this thesis, we develop the EM(EMS-Maker) Chart in order to analyze both the Manufacturer Strategy and the EMS industries.