• Title/Summary/Keyword: Design change

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Design and Validation of Robot Curriculum in Education for the Gifted Elementary Students of Computer Science (초등정보과학영재를 위한 로봇교육과정의 설계 및 검증)

  • Lee, Jae-Ho;Nam, Gil-Hyun
    • Journal of Gifted/Talented Education
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    • v.19 no.3
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    • pp.669-695
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    • 2009
  • In the 21st century, there will be a robot revolution. Only several years ago, industrial robots were the mainstream in the robot market; however, diverse type of robots are currently entering into our daily lives for various purposes, and the robot that thinks and behaves very similarly to human will appear in the near future. However, there is a critical view about the robot period. This means that the robot revolution will change even the framework of our entire society and human life style, and it is necessary to have robot education. It is necessary to start robot education in the elementary school curriculum with a view to enhancing interest in basic science and scientific technology and cultivating creative talents who may adapt themselves to a robotic society. However, there is no systematic robot curriculum owing to insufficient perception of the need of robot education and the educational utilization of robots. Under these circumstances, robot education is largely dependent on education for students with special talents and aptitudes run by private organizations. This paper conducted the following research in order to develop a robot curriculum in education for the gifted elementary students of computer science. First, the paper identified problems by analyzing the robot curriculum from a micro perspective after selecting three organizations that are relatively well perceived out of private organizations that operate robot education for the gifted elementary students of computer science. Second, the paper developed a robot curriculum in education for the gifted elementary students of computer science based on the framework of a robot curriculum run by private sector. Third, the validity of the robot curriculum developed in this paper was verified by a professional group comprising mainly persons in charge of robot curriculum development at private sector and lecturers for robot education for the gifted elementary students of computer science.

Regression models on flood damage records by rainfall characteristics for regional flood damage estimates (지역별 홍수피해추정을 위한 강우특성에 대한 홍수피해자료의 회귀모형)

  • Lim, Yeon Taek;Choi, Hyun Il
    • Journal of Wetlands Research
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    • v.22 no.4
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    • pp.302-311
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    • 2020
  • There are limitations to cope with flood damage by structural strategies alone because both frequency and intensity of floods are increasing due to climate change. Therefore, it is one of the necessary factors in the nonstructural countermeasures to collect and analyze historical flood damage records for the future flood damage assessments. In order to estimate flood damage costs in Gyeongsangbuk-do where severe flood damage occurs frequently due to geographical and climatic effects, this paper has performed the regression analysis on flood damage records over the past 20 years (1999-2018) by rainfall characteristics, which is one of the major causes of flood damage. This paper has then examined the relationship between the terrain features and rainfall characteristics in the regional regression functions, and also estimated the flood damage risk for 100-year rainfall by using the regional regression functions presented for the 22 administrative districts in Gyeongsangbuk-do excluding Ulleung-gun. The flood damage assessment shows that the relatively high damage risk is estimated for county areas adjacent to the eastern coast in Gyeongsangbuk-do. The regional damage estimate functions in this paper are expected to be used as one of the nonstructural countermeasures to estimate flood damage risk for the design or forecasting rainfall data.

A Study on the Direction of the Third Phase New Town Development in Seoul Metropolitan Area through expert survey method (전문가 설문조사를 통한 3기 신도시의 계획지표 및 개발방향설정 연구)

  • Yoon, Jeong Joong
    • Land and Housing Review
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    • v.10 no.3
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    • pp.43-55
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    • 2019
  • The purpose of this study is to derive indicators and development directions to be considered when planning new towns in the Seoul metropolitan area as new towns are planned to be built. To this end, the following implications were derived after analyzing the survey data of experts in each field using Frequency Analysis and Analysis of Variance(ANOVA) technique. First, the assessment results of the existing first and second phase new towns showed that there were many negative assessments of citizen participation and information sharing, smart technologies and services, social and cultural diversity and inclusion. Regarding the third phase new town, experts said that the most important indicators are accessibility and convenience of transportation, environmental comfort, quality and service of residence. In addition, experts cited the superiority of landscape/design, jobs/self-sufficiency and social/cultural diversity as important indicators. Second, after examining whether the perceptions and assessments of experts differ depending on individual characteristics such as gender, age, occupation, and professional field, the first and second phase new towns showed significant differences only in "gender", and the third phase new town had significant differences in "gender" and "professional field". Third, experts thought that changes in population structure, industry and jobs, quality of life and diversity, environment and climate change, and social and residential welfare should be considered important in the planning of third phase new town. In addition, experts considered expanding park and self-sufficient land as important in the land use plan, and ranked eco-city as a desirable type of the city, and public transportation facilities, park areas and education facilities as the most important living infrastructure.

How is Scientific and Technological Knowledge Linked in Technological Innovation in Korea? (우려나라 기술혁신에서의 과학-기술 지식연계 특성분석)

  • Park, Hyun-Woo;Son, Jong-Ku;You, Yeon-Woo
    • Journal of Korea Technology Innovation Society
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    • v.14 no.1
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    • pp.1-21
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    • 2011
  • Technical change and technological innovation have become major drivers of economic progress in the knowledge oriented economies where growth, productivity, and competitiveness are increasingly based on improved technologies, novel products, upgraded processes or customized services. The creation of new knowledge, modifying or improving existent knowledge, or imitation of others, has become central to economic development. New discoveries, state-of-the-art information gathering procedures, or successful problem solving routines are often at he core of these innovations. Despite the generally acknowledged importance of science in many high-tech areas of major economic relevance, there is few science-related statistics to be found in high-profile international benchmarking reports. This paper aims to provide an answer by advancing our understanding of the possibilities of indicators quantifying linkages between science and technology. Central are the concepts of innovation capability and science/technology interface, which are used to assemble a wide range of empirical studies and quantitative indicators to summarize their possibilities and limitations for producing comparative statistics. For the purpose of the study, we extracted the US patents by Korean assignees or inventors, scientific papers cited in the patents in order to analyze the characteristics of linkage of scientific knowledge flows. The review focuses on indicators dealing with flows of written or codified information, and indicators of inventiveness that capture the non-codifiable tacit knowledge dimension. General conclusions will be drawn with a view towards further developments in the foreseeable future, suggesting new avenues for the design and implementation of patent-based and inventor-based relationships between scientific research and technical development within the context of regional or national systems of innovation.

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Optimization of Blanching Process of Cirsium setidens by Response Surface Methodology and Influence of Blanching on Antioxidant Capacity (표면 반응 분석법에 의한 곤드레 블랜칭 최적 공정 확립 및 항산화 능에 미치는 영향)

  • Jo, Hyeon Seon;Ha, Yoo Jin;Kim, Yeon Tae;Kang, Gil Nam;Yoo, Sun Kyun
    • Journal of the Korean Applied Science and Technology
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    • v.33 no.4
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    • pp.777-787
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    • 2016
  • The purpose of this research was the optimization of Cirsium setidens blanched at various conditions by response surface methodology. Conducted to investigate the change of Cirsium setidens DPPH radical scavenging activity, total phenolic compounds and flavonoids during the blanching processes. With two parameters such as blanching time and temperature, response surface methodology and central composite design was used to study the combined effect of blanching time (70 to 170 seconds) and blanching temperature (70 to $99^{\circ}C$). The changes of DPPH radical scavenging activity, phenolic compounds, and flavonoids on blanching process conditions such as temperature and time were evaluated. After blanching, total phenolic compound was determined from 13.00 to 35.48 mg/ml. total flavonoids was determined from 2.31 to 8.38 mg/ml. DPPH radical scavenging activity was determined from 42.10 to 67.14 %. The optimum conditions were determined to be blanching temperature of $85^{\circ}C$ and blanching time of 150 sec.

Effect of Perceived Value on Memories, Attitudes, and Loyalty: Social Enterprise Products (사회적기업 제품의 지각된 가치가 기억, 태도, 그리고 충성도에 미치는 영향)

  • Park, Sang-Keum;Lee, Yong-Ki;Yoo, Dongkuen
    • Journal of Distribution Science
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    • v.13 no.12
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    • pp.73-84
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    • 2015
  • Purpose - Various social issues have arisen since the beginning of the 21st century therefore, enterprises that disregarded social issues have become unsustainable, and social enterprises have appeared to address these issues. A social enterprise is a social mission-focused organization that uses a market-based strategy and has a vulnerable business structure. To be self-sustainable, a social enterprise should make consumers aware of the value that it provides and secure its profitability through consumer consumption. From this perspective, this study investigates the relationship between perceived value (utilitarian and hedonic) and loyalty, and examines how memory and attitudes play mediating roles between perceived value and loyalty. For these purposes, the author developed a structural model consisting of several variables. In this model, perceived value, which was utilitarian and hedonic, was proposed to affect the memory and attitudes toward social enterprise products, thus increasing loyalty. Therefore, memory and attitudes were proposed as core mediating variables between perceived value and loyalty. Research design, data, and methodology - To analyze the proposed model, data were collected from 582 respondents and analyzed using SPSS 21.0 and AMOS 21.0. To test unidimensionality and the nomological validity of the measures of each construct, we employed a scale refinement procedure. The results of the reliability test with Cronbach's α and confirmatory factor analysis warranted the unidimensionality of the measures for each construct. In addition, the nomological validity of the measures was warranted from the results of the correlation analysis. The result of the overall model analysis demonstrated a good fit (χ2=529.881, df=144, χ2/df=3.680, p-value=0.000, GFI=0.905, NFI=0.948, CFI=0.961, RMR=0.036, RMSEA=0.068). Results - The findings are summarized as follows. First, the hedonic and utilitarian value of social enterprise products had positive effects on memory and attitudes. Second, the hedonic value of social enterprise products more strongly affects memory and attitudes than utilitarian value. Third, memory and attitudes had positive effects on loyalty. Lastly, memory had a stronger effect on loyalty than attitudes. Conclusions - The purchase rate of social enterprises' products increases only if the products are included in the "information search" and "alternative evaluation" processes in consumers' purchase decision-making processes. Therefore, a social enterprise must actively promote the fact that it pursues a social value, and shares both the hedonic and utilitarian values of its products. Accordingly, because hedonic value has a more significant impact on a company and attitudes, a social enterprise should develop hedonic values for product consumption, thereby leading consumers who care about value consumption to purchase its products. Moreover, a social enterprise must maintain good memories and attitudes for consumers because memory does not change over time, although attitude does. The limitations of this study and suggestions for future research are as follows. This study viewed "consumer loyalty" as the success factor of social enterprises, thereby considers an "increase in sales" as the success factor. Therefore, in future studies, diverse factors, including social contribution and word-of-mouth intention, should be regarded. In addition, future studies need to thoroughly review and make assurances about the relationship between memory and attitude.

Structural Relationships among SEM CEO's Positive Leadership, Members' Positive Life Positions, Learning Organization Activities, Job Engagement, and Organizational Performance (중소기업경영자의 긍정적 리더십, 구성원의 긍정적 삶의 태도, 학습조직활동, 직무열의, 조직성과 변인간의 구조적 관계)

  • Park, Sooyong;Choi, Eunsoo
    • Journal of Distribution Science
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    • v.13 no.12
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    • pp.113-131
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    • 2015
  • Purpose - In today's era of globalization, the competitive power of enterprises is growing fiercer, calling for organizations to be able to respond flexibly to survive and maintain predominance in competition. In turn, keen competition exists among enterprises for the systematic management of members' knowledge to secure predominance in such competition. Under such circumstances, SMEs must find and utilize positive causes for change that affect organizational performance. The objective of this study is to analyze the structural relationship between four factors known from prior research-a CEO's positive leadership, members' positive life positions, learning organization activities, and job engagement-and organizational performance. Research design, data, and methodology - To achieve this objective, this study established the following four research problems. First, do CEOs' positive leadership, members' positive life positions, learning organization activities, and job engagement affect organizational performance? Second, do CEOs' positive leadership, members' positive life positions, and learning organization activities affect job engagement? Third, do CEOs' positive leadership and members' positive life positions affect learning organization activities? Fourth, does CEOs' positive leadership affect members' positive life positions. Additionally, to achieve the objective of this study, the research model was selected on the basis of a documentary survey of 787 full-time employees at 100 SMEs, which was used to collect related data. Results - The following conclusions were drawn. First, a CEO's positive leadership directly affects members' positive life positions, learning organization activities, and job engagement. Second, positive leadership only indirectly affects organizational performance. That is, positive leadership has an indirect effect on organizational performance given the parameters of members' positive life positions, learning organization activities, and job engagement. Third, members' positive life positions directly affect learning organization activities and job engagement, but indirectly affect organizational performance with learning organization activities and job engagement as parameters. Fourth, learning organization activities directly affect job engagement and organizational performance. Additionally, learning organization activities indirectly affect organizational performance with job engagement as a parameter. Fifth, job engagement directly affects organizational performance. Conclusions - A CEO's positive leadership and members' positive life positions do not directly affect organizational performance but have a positive effect through learning organization activities and job engagement. In particular, CEOs' positive leadership was proven to be the major factor to affect members' positive life positions, learning organization attitudes, and job engagement, and learning organization activities and job engagement were found to be major factors that directly affect organizational performance. Considering these conclusions, the direct effect of a CEO's positive leadership on organizational performance is not statistically significant but seems to affect members' positive life positions, learning organization activities, and job engagement, which ultimately affects organizational performance. In addition, CEOs' positive leadership is an important factor that enhances the factors with the strongest effect on organizational performance-activities of learning organizations and job engagement.

Influence of Authenticity on Electrical Energy Saving Behavioral Intention (진정성이 전기에너지 절약 행동의도에 미치는 영향)

  • Kim, Young-Doo
    • The Journal of Industrial Distribution & Business
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    • v.9 no.11
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    • pp.67-76
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    • 2018
  • Purpose - Electrical energy saving is one of the practical virtues relating to sustainable living. Therefore, policy-makers has tried to find a way to change the behaviors of individuals to encourage them to actively practice electrical energy saving, even if they have never had this concern or have only passively practiced electrical energy saving to this point. Prior research related to electrical energy saving can be categorized into several types. The first is focused on consumer characteristics linked to electrical energy saving. These studies are based on individual or household socio-demographic variables (e.g., age, gender, household income, education level, occupants, marital status, number of households), and psycho-graphics (e.g., environmental consciousness, value, attitude, motivation, lifestyle). The second is focused on policies (e.g., monetary incentives, information sharing, social comparison, feedback), and technologies (e.g., energy-efficiency home appliances, energy-reduced products, renewable resources). People generally have a favorable attitude towards electrical energy saving, while electrical energy saving practices tend to be less favorable. Therefore, it is necessary for policy-makers to seek out gaps between attitudes and behaviors and find alternatives to reduce these gaps. This study investigates the influence of authenticity on the behavioral intention of electrical energy saving. It is supposed that electrical energy saving practices are likely to be stronger as authenticity of individual or household becomes stronger. This study reviews prior literature and examines various studies to provide an understanding of the relationships between authenticity and electrical energy saving behavioral intention. Research design, data, and methodology - Hypothesis was drawn from analysis based on previous research. The items related to authenticity and electrical energy saving were selected from items found in previous research. To verify this hypothesis, data were collected via experimental survey method and the resulting data were analyzed using reliability analysis, correlation analysis, and hierarchical regression analysis. Results - This study found that authenticity had a positive impact on the behavioral intention of electrical energy saving. The higher the perceived degree of authenticity, the higher the behavioral intention of electrical energy saving. Conclusions - This study assesses the impact of authenticity on the behavioral intention of electrical energy saving. In order to enhance the practice of electrical energy saving, it is efficient strategy for policy-maker to improve the perceived authenticity of individuals.

A Study on the Effects of Health Education and Self-Care Status on the Aged Diabetics (노인요당 양성자의 질병관리에 대한 교육 및 추후 관리 양상에 관한 연구)

  • Rhee Seon Ja;Kwon Yeon Hee
    • Journal of Korean Public Health Nursing
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    • v.2 no.2
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    • pp.99-116
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    • 1988
  • This study examined the effect of Health Education on the aged. One of the Study objectives was to improve knowledge. attitude and self-care practice about diabetes of the aged who have responded positive in the urine sugar test. The other study objective was to find out factors influencing knowledge. attitude and self-care practice about diabetes. and the relationship among the three variables. The subjects, consisting of 45 positive responders in the urine sugar test, were selected from the elderly who attend elderly citizen center in southern part of Seoul Then they were divided into an experimental and a control group. The study design was set to compare the pre and post test data between the experimental and the control group with the measures of results from Health Education services including nursing care intervention programs on the aged diabetics. The first data collection was carried out in August. 1986 through questionaires and urine sugar testing. The second data collection was done in September, 1987 through the same methods. The results of the study are summarized as follows; 1. General characteristics of the subjects The experimental group has 9 females and 14 males and the control group has 12 females and 10 males. As for the educational level, more than half of the subjects in both group had completed at least 6 years of education. And there was no significant difference in urine sugar levels between the two groups. 2. The effect of Health Education on the extent of change in knowledge, attitude and self-care practice about diabetes was found to be significant. The first hypothesis that knowledge, attitude and self-care practice about diabetes in the aged will be unchanged by Health Education. was rejected by increased the three variables and decreased urine suger level in the experimental group. The second hypothesis that knowledge, attitude and self-care practice about diabetes wouldn't be concerned with each other, was rejected. That is. the three variables and urine sugar levels showed a significant positive relationship with each other but diabetic knowledge to urine sugar level had an insignificant positive relationship. The third hypothesis that the amount of learning Health Education will have no relationships with knowledge. attitude and self-care practice about diabetes. was rejected. That is, the more number of times an elderly person participated in Health Education. they increased their diabetic knowledge. attitude and self-care practice and decreased their urine sugar level. 3. Except for Health Education, an other factor influencing diabetic knowledge was educational level. And an other factor influencing the diabetic attitude was experience of the diagnosis of diabetes. 4. Except for Health Education. the other factors influencing self-care practice were experience of the diagnasis of diabetes, sex and experience of the hospitalization for diabetes. But factors influencing urine sugar level weren't found. Although the results seem to be plausible, this study is not without its problems. In paticular, the sample used is limited in its scope and size. So, more empirical work needs to be done for other diseases as well as diabetes before any general conclusions are to be made.

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Study on Electrical Resistivity Pattern of Soil Moisture Content with Model Experiments (토양의 함수율에 따른 전기비저항 반응 모형 실험 연구)

  • Ji, Yoonsoo;Oh, Seokhoon;Lee, Heui Soon
    • Geophysics and Geophysical Exploration
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    • v.16 no.2
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    • pp.79-90
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    • 2013
  • Geophysical investigation in non-destructive testing is economically less expensive than boring testing and providing geotechnical information over wide-area. But, it provides only limited geotechnical information, which is hardly used to the design. Accordingly, we performed electrical resistivity experiments on large scale of soil model to analyze the correlation between electrical resistivity response and soil water contents. The soils used in the experiments were the Jumunjin standard sand and weathered granite soil. Each soil particle size distribution and coefficient of uniformity of experimental material obtained in the experiments were maintained in a state of the homogeneous. The specifications of the model used in this study is $160{\times}100{\times}50$(cm) of acrylic, and each soil was maintained at the height 30 cm. The water content were measured using the 5TE sensors (water contents sensors) which is installed 7 ~ 8 cm apart vertically by plugging to floor. The results of the resistivity behavior pattern for Jumunjin standard sand was found to be sensitive to the water content, while the weathered granite soil was showing lower resistivity over the time, and there was no significant change in behavior pattern observed. So, it results that the Jumunjin standard sand's particle current conduction was better than the weathered granite soil's particle through contact with the distilled water. This lab test was also compared with the result of a test bed site composed of similar weathered soil. It was confirmed that these experiments were underlying research of non-destructive investigation techniques to improve the accuracy to estimate the geotechnical parameter.