There are two problems to be solved by our efforts in the enamel frit. One is how we can cover the enamel frit thin with complete milk white as possible, and the other is how it can be, made resistant for chemicals than before one. The frit which can solved the two problems just mentioned above is titanium enamel frit. This frit has been developed in America after War Ⅱ, and now the research for concerning antimony frit into titanium frit is under development entirely. In order to develope the enamel industry in Korea, it is urgent problem to convert antimony frit into titanium frit. By the way the titanium frit is emulsified titanium oxide crystal which made through reheating the supersaturated solution of titanium oxide in the basis of glass. Unfortunately, there are many obscure points in active fact or which influence on its composition and characteristics yet. However, this task was tried for the first in Korea. As first step, the test was carried on the reference books, and we can be possible convert antimony frit into titanium frit as a result of this experiment. As a conclusion, for the purpose of developing the enamel industry in Korea, we studied that the research for converting antimony enamel frit which has been used popularly into titanium enamel frit which is more economic and resistant for chemicals. As a result of experiments, the following points concerning with titanium frit have become clearly. 1. It is better when the composition of titanium enamel frit has as following table.Man Duck San Silica 24 An Yang Feldspar 20 Borax 28 Sodium Nitrate 4 Cryolite 7 Calcium Carbonate 3.6∼1 Titanium Oxide 10 Calcium phosphate 0 ∼3.2 Calcium Fluoride 0∼1.8 Antimony Oxide 0∼0.5 2. The amount of $TiO_2$, to be added is $10%\;to\;12{%,\;CaF_2\;is\;under\;1.8%,\;P_2O_5\;is\;under\;1.6%,\;Sb_2O_3\;is\;under\;0.5%$. 3. In the titanium frit, the limit of iron oxide amount to be included is under 0. 5%. 4. Comparing the titanium enamel frit with antimony enamel frit not only the titanium frit can be savely 20.6% in the price of raw materials, but one time of glazing and heating process is omitted in each case, and it is known the titanium frit is more resistant for chemicals than antimony frit.
The Korean government is actively pursuing an ambitious IT strategy to establish Korea as one of the leaders in the world IT market. To implement the strategy, successful technology transfer from research institutions to market should be achieved. Comprehensive literature identifies sixteen variables affecting the process and results of technology transfer. The research results in four key factors in technology transfer: Communication, Distance, Equivocality, and Motivation. Communication refers to the degree to which a medium is able to efficiently and accurately conveys task-relevant information and media while distance involves both physical and cultural proximity. Equivocality refers to the degree of concreteness of technology to be transferred while motivation involves incentives for and the recognition of the importance of technology transfer activities. Further analysis shows that there are four distinctive clusters and they show very contrasting characteristics in terms of four key factors. The careful mapping of the four clusters on the four key factors show very informative technology transfer patterns, the Technology Transfer Grid.
Journal of the Korean BIBLIA Society for library and Information Science
/
v.26
no.1
/
pp.199-215
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2015
As a way of identifying users' image needs for improved effectiveness of image search, there have been recent research approaches to examine contextual factors in image needs with multiple perspectives. In this line of research, this study examined a total of 70 unsuccessful image searches for the purpose of investigating users' image needs. In order to achieve the purpose of this study, in particular, the characteristics of image needs, contextual factors on image needs, and image queries were investigated. The findings of this study demonstrated that information needs from the failed image searches are categorized primarily into specific and general/nameable categories. More importantly, these information needs are embedded with multiple contextual factors, primarily, task purpose and use purpose. With an analysis of detailed use purposes for image, illustration use was found most in this data set. For query analysis, the type of unique/refined image query was revealed primarily. As the results of this study were found similar to the findings of previous studies, it is possible to characterize the image needs from the failed image searches. In addition, the findings of this study are expected to be useful to the design and service of image retrieval.
We can usually found the children who do overactive and aggressive behaviors. They disrupt classroom order and cause other children immense damage. Their teachers exert themselves to control or manage them in class. This may lead to a reduction of precious time for teaching-learning classroom activities. This study has counseled those children doing overactive and aggressive behaviors with solution-focused brief counseling. This study also explores the following problems. First, how does solution-focused brief counseling affect their overactive and aggressive behaviors? Second, what changes do they experience through solution-focused brief counseling? Third, is solution-focused brief counseling useful in elementary schools? To do this study task, four students have been chosen with the help of teachers in the fifth year at B Elementary School in Ansan. The four children scored high in Mi-hyun Han's 'The ratings of the child's behavior problems' and Se-Yong Jeong's 'Life of school and behavior test'. They are all eleven years old and had two interviews before the experiment and five interviews during the experiment. The analysis of the counseling has been interpreted according to the different analytical methods based on the tasks. Solution-focused brief counseling's effect on children doing overactive and aggressive behaviors has been studied by quantity-analysis method, their changes in behaviors by quality analysis method; phenomenal and psychological method and the usefulness of this counseling in school surroundings by the joint of above two methods. The analysis has provided the following results. First, solution-focused brief counseling has been effective in the reduction of behavioral problems for those children doing overactive and aggressive behaviors and the continuation of the counseling has had a positive effect but it has depended on the individual characteristics and the degree of severity in their behaviors. Second, solution-focused brief counseling has lent itself to encouraging children to have egostrength, confidence, and volition in their behavioral changes with a favorable attitude to the counseling. Third, The egostrength formed through counseling has led children to a progressive direction of their behaviors in their school life. The increasing frequency in counseling has caused a decreasing time-period expected for counseling, and a feasibility of counseling with less resistance. In conclusion, solution -focused brief counseling may be a useful means to help children have positive self-esteem and lead a proper school life, leading to be a helpful facilitation for school site facing a deficiency of counseling.
Kim, Young-Yi;Han, Won-Suk;Kong, Bo-Hyun;Cho, Hyung-Koun;Kim, Jun-Ho;Lee, Ho-Seoung
Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
/
2008.11a
/
pp.11-11
/
2008
ZnO has a very large exciton binding energy (60 meV) as well as thermal and chemical stability, which are expected to allow efficient excitonic emission, even at room temperature. ZnO based electronic devices have attracted increasing interest as the backplanes for applications in the next-generation displays, such as active-matrix liquid crystal displays (AMLCDs) and active-matrix organic light emitting diodes (AMOLEDs), and in solid state lighting systems as a substitution for GaN based light emitting diodes (LEDs). Most of these electronic devices employ the electrical behavior of n-type semiconducting active oxides due to the difficulty in obtaining a p-type film with long-term stability and high performance. p-type ZnO films can be produced by substituting group V elements (N, P, and As) for the O sites or group I elements (Li, Na, and K) for Zn sites. However, the achievement of p-type ZnO is a difficult task due to self-compensation induced from intrinsic donor defects, such as O vacancies (Vo) and Zn interstitials ($Zn_i$), or an unintentional extrinsic donor such as H. Phosphorus (P) doped ZnO thin films were grown on c-sapphire substrates by radio frequency magnetron sputtering with various Ar/ $O_2$ gas ratios. Control of the electrical types in the P-doped ZnO films was achieved by varying the gas ratio with out post-annealing. The P-doped ZnO films grown at a Ar/ $O_2$ ratio of 3/1 showed p-type conductivity with a hole concentration and hole mobility of $10^{-17}cm^{-3}$ and $2.5cm^2/V{\cdot}s$, respectively. X-ray diffraction showed that the ZnO (0002) peak shifted to lower angle due to the positioning of $p^{3-}$ ions with a smaller ionic radius in the $O^{2-}$ sites. This indicates that a p-type mechanism was due to the substitutional Po. The low-temperature photoluminescence of the p-type ZnO films showed p-type related neutral acceptor-bound exciton emission. The p-ZnO/n-Si heterojunction LEO showed typical rectification behavior, which confirmed the p-type characteristics of the ZnO films in the as-deposited status, despite the deep-level related electroluminescence emission.
This study analyzed SWOT based on existing literature data to establish strategic tasks and strategic directions for revitalization of social economic organizations (Chungnam region). First, as a result of SWOT analysis of social economic organizations, a total of 16 factors were derived from the factors for strength (S), weakness (W), opportunity (O), and threat (T), with 4 factors each. Second, for strategic factors for social economic organizations, 16 strategic tasks were derived from SO strategy, ST strategy, WO strategy, and WT strategy through SWOT Matrix Mapping for factors established through SWOT analysis. Strategic direction 1 was established as a strategic direction to improve self-sufficiency by establishing a sustainable management body as a "advancing the support policy base of social economic organizations". Strategic Direction 2 is "Creating a Growth Foundation for Social Economic Organizations", which means a strategic direction for social economic organizations to grow and develop on their own. Strategic direction 3 is "discovering and fostering social economic organizations," which means a strategic direction for sustainable growth by discovering and fostering organizations that meet local characteristics so that social economic organizations can solve various problems in the region. Strategic direction 4 was 'promotion and promotion of social economic organizations', which means strategic directions for promotion of social economic organizations and promotion of education for employees.
Journal of The Korean Association For Science Education
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v.34
no.1
/
pp.10-20
/
2014
This study compares the perceptions of elementary gifted child and science teacher in a science class for the gifted. In order to explore the research problem, students and teachers answered a written semi-structured questionnaire and participated in interviews regarding the gifted science class. The data was collected and analyzed. Science teachers recognized the characteristics of a good science class, especially in terms of educational content and teaching methodology. First, they suggested promoting inquiry skills, presenting a challenging task in atypical topic selection, student-centered curriculum, and controlling the pace of learning to recognize individual differences. Second, in terms of the science class skills and attitudes category, teachers recommended raising mutual satisfaction through vigorous interaction within a permissible atmosphere. Finally, science teachers need to strive for continued professional growth. Gifted children, meanwhile, want to investigate a wide range of topics without time constraints. Additionally, they may have to explore challenging topics further. They prefer to act like scientists in that they enjoy group activities, communication and cooperation. In particular, they want to be evaluated by others in a totally embedded assessment. Gifted children also expect teachers to understand the life circumstances and needs of the students. In addition, they asked for teachers to respect individual experiments and to show them how to safely use new equipment or research methods. As a result, gifted children and science teachers have to recognize the differences of opinion concerning a good science class for the gifted. This study can help formulate strategies to establish quality management of materials in gifted science classes.
Today, more chronically ill and handicapped children are being cared for at home by a family member caregiver. The task of caring for a family member may feel burden that the caregiver has less time and money and more work. Family functioning and their burden have influence on coping and adaptation of families with chronically-ill children. This study attempted to identify the levels of burden and family functioning in families of children with cerebral palsy and to examine their relationships. The instruments were burden scale developed by Suh and Oh(1993), and a modified Feetham Family Functioning Survey based on Roberts and Feetham.(1982). The subjects were 98 parents of children, under 15 years, who have cerebral palsy and being treated and living in Pusan. Data were collected through a self-administered question- aire from April 26 to May 29. The collected data were tested using frequencies, percentiles, means, t-test, ANOVA, and Pearson correlation coefficient with SPSSWIN program. The results of this study were as follows ; 1. The mean rating scores of burden and family functioning were 2.79±.51 and 4.12±.69, respectively. 2. The relationships between general character- istics and burden were statistically significant difference : degree of children's handicap(F=6.333, P<.01). The relationships between general characteristics and family functioning were statistically significant differences : familial relation with the children(F=3.628, P<.05), caregiver's health status(F=4.359, P<.05), age of children (F=4.185, P<.05), and duration of treatment (F=6.802, P<.01). 3. In families of children with cerebral palsy, there was significantly negative correlation between the burden of parents and the performance of family functioning(r=-.230, P<.05). There were significantly negative correlations between the burden of parents and the satisfaction of family functioning (r=-.211, P<.05), and between the perceived importance and the satisfaction of family functioning(r=-.481, P<.01); however, there was a positive correlation between the performance and the perceived importance of family functioning(r=.425, P<.01). In conclusion, this study suggests that families of children with cerebral palsy need family-focused nursing interventions as supportive care for relieving their burden and for improving family functioning.
Asia-Pacific Journal of Business Venturing and Entrepreneurship
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v.15
no.1
/
pp.17-29
/
2020
In recent years, universities, with their intellectual properties and human resources, become main drivers for technology transfer. Universities in Korea have various organizations to support the technology transfer and commercialization. Among them, a technology holding company plays the critical role to successfully implement the task. Nonetheless, the performance of the technology holding company is well below the expectation of industry, government and universities themselves. The lack of expertises and experience together with the ill-suited government policies could be attributable to the observed under performance. More recently, however, the technology holding company acts as an accelerator or venture capital to search and fund promising start-ups. The university venture capital thus transforms a traditional university into an entrepreneurial university. Focusing on the role of the technology holding company as an accelerator or venture capital, the paper analyzes the characteristics of the university venture capital and the invested start-ups. The performance of the university venture capital is measured and the determinants of the performance are empirically tested. The results show that the co-investment of outside investors and the support of government program, known as Tech Incubator Program for Startup Korea, yields the highest performance. The result indicates that the coordination of the university venture capital, industry and government is the key to the success of early start-ups. The paper is the first to analyze the performance of the university venture capitals in Korea and thus contributes to the literature.
Lee Young Chul;Baek Young Soon;Cho Byoung Hak;Park Ki Whan;Ru Byong Jae
The Korean Journal of Petroleum Geology
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v.7
no.1_2
s.8
/
pp.19-27
/
1999
Korea, an energy-resources-poor country, imports $100{\%}$ of its, oil and, natural gas supply, which accounts for the greater part of its total primary requirements. One of the important task of the government is diversification of available energy resources such as oil and natural gas. Natural gas hydrate, which is non-conventional types of natural gas, distributes worldwide, especially in marine and permafrost. It would become a target of natural gas resources in the near future. Especially sigrificant amount of hydrates are expected to be located in the East Sea around Korea Peninsular. This paper describes about a multi-year overall project framework of basic research and technological development of natural gas hydrate in Korea focused on the interpretation of the seismic survey, the characteristics and physical properties of the natural gas hydrate, and the utilizable technology of natural gas hydrates from the status of research and development of the world.
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