• 제목/요약/키워드: science objectives

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Quality Characteristics of Gondregaedduck by the Level of Cirsium setidens and Storage (곤드레 첨가량, 저장기간에 따른 곤드레개떡의 품질특성)

  • Im, Hye-Eun;Yoe, Hee-Kyung;Chang, Seo-Young;Han, Myung-Joo
    • Journal of the Korean Society of Food Culture
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    • v.27 no.4
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    • pp.400-406
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    • 2012
  • The objectives of this study were to investigate the quality characteristics of Gondregaedduck containing 0, 10, 20, and 30% Cirsium setidens. By increasing the level of Cirsium setidens, Hunter color L and a values of Gondregaedduck decreased, whereas b value increased. Hardness, springiness, and cohesiveness of Gondregaedduck decreased upon addition of Cirsium setidens. Over 3 days of storage, Gondregaedduck showed a slightly high total bacterial count compared to control. Sensory evaluation showed that Gondregaedduck containing 10% Cirsium setidens had higher color, taste preference, and overall acceptability.

The Development and Application Effects of Convergence Program for Field Trip and STEAM Education related Geology (지질 관련 야외 학습과 STEAM 교육을 융합한 프로그램 개발 및 적용 효과)

  • Kim, Deok-Ho;Hong, Seung-Ho
    • Journal of Korean Elementary Science Education
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    • v.33 no.2
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    • pp.364-379
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    • 2014
  • In this study, a theme-centered STEAM program converged with field trip was developed in the 'The stratum and fossils' unit of elementary science. The objectives were to find the influences on academic achievement, creative problem solving abilities and scientific attitude of elementary school students. The STEAM education program was composed of content which can be applied effectively by converging field trip and STEAM elements. As the results applied the STEAM program to elementary school students, the experimental group improved effectively in the academic achievement, creative problem solving abilities and scientific attitude compared to the control group, which took the theoretical lesson. In conclusion, it is necessary to develop systematically and continuously programs converging STEAM and field trip in various units of science subject which field trip is possible.

A methodology of the status study and the remediation of children's misconceptions of elementary science concepts (국민학교 아동의 과학개념에 대한 실태조사 및 교정을 위한 방법 연구)

  • Kim, Hyo-Nam
    • Journal of The Korean Association For Science Education
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    • v.10 no.2
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    • pp.11-24
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    • 1990
  • The objectives of this study are to find out the research methodology about misconception, the types of scientific concepts to be misconcepted the analysis methodology of causes of misconception, and remediation methodology of misconception. The research methods of this study are descriptive ques tionnare, interview, classroom observation and curriculum analysis. The results of this study are: ${\circ}$ The descriptive questionnaire is sufficient to obtain children's ideas. ${\circ}$ The types of science concepts to be misconcepted are 'the invisible natural phenomena,' 'the vague Understanding', 'the contents of teachers' lecture', 'the lack of children's cognitive development,'and 'the influence of nursery stories.' ${\circ}$ The Cause analysis methods of misconception are that the analysis of the cognitive level of the questionnaire items, the examining the item concepts are taught or not and the investigation about the agreement of the cognitive level of the questionnaire item and children. ${\circ}$ Remediation methods are visualijation and instrustion of invisible natural phenomena, concrete presentation of the scientific concepts, and acceleration of the cognitive development.

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SINGLE MACHINE GROUP SCHEDULING UNDER DECREASING LINEAR DETERIORATION

  • Wang, Ji-Bo;Guo, Ai-Xia;Shan, Feng;Jiang, Bo;Wang, Li-Yan
    • Journal of applied mathematics & informatics
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    • v.24 no.1_2
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    • pp.283-293
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    • 2007
  • This paper considers single machine scheduling problems with group technology (GT) and deteriorating jobs. A sequence independent setup is required to process a job from a different group and jobs in each group are processed together. We consider the case of jobs whose processing times are a decreasing function of their starting time. The objectives of scheduling problems are to minimize the makespan and the total completion time, respectively. We also provide polynomial time algorithms to solve these problems.

Challenges and Opportunities of Knowledge Management in University Library: A Case Study of Dhaka University Library in Bangladesh

  • Mostofa, Sk. Mamun;Mezbah-ul-Islam, Muhammad
    • Journal of Information Science Theory and Practice
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    • v.3 no.4
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    • pp.49-61
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    • 2015
  • Knowledge Management (KM) has become a fundamental process for all types of institutions in society. Academic libraries are also an integral part of the knowledge system, these institutions being one of the forms that contribute to knowledge development. This study aims to find out the challenges and opportunities associated with KM practices in Dhaka University Library (DUL). The specific objectives were to ascertain the understanding of KM concepts among library professionals of DUL, to explore an overview of KM and its role, and to identify the rationale behind not practicing KM properly at DUL. Appropriate methods were employed. The findings indicate that limited expertise and lack of clear guidelines are the major challenges for the implementation of KM in DUL.

Abrasion of PET Fabrics by Using Microwave Energy (Microwave Energy를 이용한 PET 직물의 Abrasion)

  • Cho, In-Sul;Lee, Eun-Woo;Cho, Kyu-Min;Chang, Du-Sang
    • Journal of the Korean Society of Industry Convergence
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    • v.2 no.2
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    • pp.69-72
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    • 1999
  • The aim of this study is to enhance the abrasion of the hydrolyzed polyethylene terephthalate(PET) fabrics by using microwave energy. In other to achieve the aforementioned objectives, PET fabrics were hydrolyzed in NaOH solution by using abrasion method such as dipping, microwave-dipping, pad steam-dry, and pad microwave-dry, and then abrasion of the hydrolyzed PET fabrics was calculated and investigated. As a result obtained form this study, the abrasion of the hydrolyzed PET fabrics is directly proportional to hydrolyzed time and NaOH concentration. And also, microwave-dipping method and pad microwave-dry method showed remarkable abrasion effect than the others.

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Analytical Development of a Robust Controller for Smart Structural Systems

  • Park Chul Hue;Hong Seong Il;Park Hyun Chul
    • Journal of Mechanical Science and Technology
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    • v.19 no.5
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    • pp.1138-1147
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    • 2005
  • This paper aims at demonstrating the feasibility of active control of beams with a multiobjective state-feedback control technique. The multiobjective state-feedback controller is de­signed on a linear matrix inequality (LMI) approach for the multiobjective synthesis. The design objectives are to achieve a mix of Hoo performance and H2 performance satisfying constraints on the closed-loop pole locations in the face of model uncertainties. The controller is also designed to reject the effects of the noise and external of disturbances. For the theoretical analysis, the governing equation of motion is derived by Hamilton's principle to describe the dynamics of a smart structural system. Numerical examples are presented to demonstrate the effectiveness of the integrated robust controller in damping out the multiple vibration modes of the piezo/beam system.

Gender Disparities in the Use of ICT: A Survey of Students in Urban Schools

  • Basavaraja, M.T.;Sampath Kumar, B.T.
    • Journal of Information Science Theory and Practice
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    • v.5 no.4
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    • pp.39-48
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    • 2017
  • This study aims to investigate gender differences in the use of ICT by the students of urban schools. The objectives of the study are to find out the use of computers and Internet by the students and also the problems encountered by them while using computers and Internet. The study found that there is a significant association between the place (p=.005) and frequency (p=.002) of use of computers and gender. It is also found that there are significant differences in the problems faced by students while using computers (p=.002), use of Internet (p=.004), and the gender. This clearly indicates that there exists a gender disparity in the use of ICT by the male and female students in the urban schools. In order to overcome this disparity, the school authority should provide the basic and necessary ICT infrastructure in schools which can be equally used by male and female students.

Knowledge Management Initiative: A Case Study of the National Library of Bangladesh

  • Sultana, Nazmin;Mostofa, SK Mamun
    • Journal of Information Science Theory and Practice
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    • v.6 no.1
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    • pp.6-17
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    • 2018
  • This paper confers about the implementation of Knowledge Management (KM) in the National Library of Bangladesh (NLB). The main aim of this study was to investigate how the NLB goes about creating, implementing, disseminating, and applying knowledge within the organization. The other objectives of this paper were to identify the current status of KM in NLB and the understanding of different facets of KM by the staff of the National Library. The paper revealed that the situation of KM in NLB is not satisfactory. The paper also described the fact that the working environment supports the implementation but there needs to be some changes in the policies. Finally the research disclosed that NLB is a great place for implementing KM and has a large amount of possibilities for the adoption of KM. This qualitative research used the questionnaire as the main instrument for data collection. Finally, data has been processed and analyzed using SPSS and MS Excel.

Major Satisfaction according to Value and Self-efficacy of University Student Majoring in Health Science (전문대학 보건계열 대학생의 가치관과 자기효능감에 따른 전공만족도)

  • Chung, Sin Ho;Kim, Hyunhee;Sim, Sang Hyo
    • The Journal of Korean Society for School & Community Health Education
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    • v.18 no.2
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    • pp.71-81
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    • 2017
  • Objectives: The purpose of this study was to investigate major satisfaction according to the values and self efficacy of students majoring in health science. Methods: Among the 170 respondents, 25.3% were male and 74.7% were females. The departments were 28.9% of physical therapy, 20.6% of laboratory science, 23.5% of occupational therapy, 14.1% of nursing, and dental hygiene 12.9%. Results: In the present study major satisfaction was significantly higher when the higher self efficacy and significantly lower when the higher value. Conclusions: These results indicate that it is necessary to provide contents and appropriate guidance that can enhance the values and self efficacy in order to improve major satisfaction of students majoring in health science.

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