• Proceedings of the Korean Society of Soil and Groundwater Environment Conference
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• 2005.10a
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• pp.62-63
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• 2005

• 한국HCI학회:학술대회논문집
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• 2006.02b
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• pp.156-162
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• 2006

It was hypothesized that mobile 3D provide the sense of presence in different quantity and quality aspects in virtual reality. And it was supposed that the construction of presence involves various levels and dimensions. The factors of mobile 3D game are divided into 4 super-factors; condition factor, interface factor, attention factor, feedback factor that resulted into 20 sub-factors resulted from the factor analysis. Our primary goal is the development of valid Mobile 3D presence scale, and to find out the factor structure of the scale.

• Journal of Korean Academy of Nursing
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• v.16 no.3
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• pp.31-37
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• 1986

The purpose of this study is to develop a ratio scale measuring organizational charateristics in nursing. 599 staff nurses working at 10 educational hospitals in Seoul were participated during the period from July 1 to July 31, 1985. Subjects were instructed to rate at one to five points likert type scale according to the level of positive characteristics affecting the nursing organizational effectiveness. As a result of factor analysis given to 50 items with varimax rotation and rearrangement on the asis of factor loading 0.3, there are 4 factors consisted of 33 items presented: factor 1 : leadership of head nurses and interaction(11 items) factor 2 : leadership of supervisors and top managers(11 items) factor 3 : interaction with supervisors(5 items) factor 4 : organizational climate(6 items) Reliability of the factors were tested by Cronbach's Alpha, and the result was α=0.67∼0.84 Further studies are needed to identify the relationship between this tool and the effectiveness of various organization in nursing.

• KSBB Journal
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• v.8 no.3
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• pp.243-255
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• 1993

In this study, it was observed that hydrogen Productivity varied with stirrer speed, bead radius, input glucose concentration and dilution rate in a continuous stirred tank reactor in which immobilized R. rubrum KS-301 was used as a hydrogen-producing bacterium The mass transfer resistance due to cell immobilization was also studied. In order to estimate an effectiveness factor, Des of glucose was first obtained, which was subsequently represented by the correlation equation between Dos and Xb, As a result external mass transfer resistance could be neglected for stirrer speeds greater than 400rpn With bead radius increasing, the hydrogen productivity and internal effectiveness factor decreased. With input 91ucose concentration increasing, the hydrogen productivity and interval and external effectiveness factor increased. Although an Internal effectiveness factor was not affected, hydrogen productivity Increased with dilution rate increasing. An overall effectiveness factor remained nearly constant for the dilution rates investigate4 but increased with input 91ucose concentration increasing.

• Journal of the Korean Home Economics Association
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• v.30 no.4
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• pp.167-182
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• 1992

The purpose of the study was to determine if an abstract color palette was representative of a color scheme of interior environment by which the meaning of colcor could be determined. An abstract color palette was developed by the researchers to show contrast, overlapping, and adjacencies as they might actually appear in an interior environment. Six pictures and six color palettes were used to test the meaning of color. The questionnaire consisted of 21 words to describe the color of interior environment. The sample consisted of 73 undergraduate students of varied majors. A factor analysis was used to identify the structure of color meaning. Five factors; emotional factor, factor of unity, spatial quality factor, factor of complexity, and social evaluation factor were identified. A t-test was used to analyze the difference in responses to the descriptor words for the pictures and palettes. It was found that in 14 of 21 descriptor, there was no significant difference between evaluation of color meaning for the pictures and palettes in 50% or more of the cases.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2006.06a
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• pp.527-528
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• 2006

A dissipation factor standard of decade type having the range of 1 to 0.0001 at the frequency of 1 kHz and 10 kHz was fabricated using "T" networks combined R and C components. The values of the fabricated dissipation factor standard were adjusted within 1% of the nominal values at 0.0001 dial range and 0.05% at the others. This dissipation factor standard is used as a working standard for calibration of a impedance measurement meter at KRISS and as a primary standard of dissipation factor field at NML-SIRIM in Malaysia.

• Tuberculosis and Respiratory Diseases
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• v.85 no.3
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• pp.221-226
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• 2022

Chronic obstructive pulmonary disease (COPD) is characterized by airflow limitation due to chronic airway inflammation and destruction of the alveolar structure from persistent exposure to oxidative stress. The body has various antioxidant mechanisms for efficiently coping with such oxidative stress. The nuclear factor erythroid 2-related factor 2 (Nrf2)-antioxidant response element (ARE) is a representative system. Dysregulation of the Nrf2-ARE pathway is responsible for the development and promotion of COPD. Furthermore, COPD severity is also closely related to this pathway. There has been a clinical impetus to use Nrf2 for diagnostic and therapeutic purposes. Therefore, in this work, we systematically reviewed the clinical significance of Nrf2 in COPD patients, and discuss the value of Nrf2 as a potential COPD biomarker.

• Journal of Agricultural Extension & Community Development
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• v.19 no.4
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• pp.773-798
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• 2012

The study present the findings divide into brand naming, image, positioning. The farms built trust by consumer relationship with the farm brand. The results of the study provide insights for agricultural marketers who intend to design brand stories that align with their produce. This study is a regional case study of the factor analysis which explain residents' satisfaction of the efficient rural development projects under the Block Grants System in Buyeo. This study attempted to proceed the empirical survey of 353 residents who live in one 'town(eup)' and 13 'village(meon)' in Buyeo-gun and analyzed through SPSSWIN. The results of the satisfaction analysis in the local development projects satisfied with the overall average 3.16 and then empirically verified the important factors of the 'cultural and leisure activities', 'learning environment', 'jobs and working conditions', 'transportation'. The factor analysis of 12 variables united into three factors, the first Factors are 'transportation', 'learning environment', 'social welfare', 'cultural and leisure activities', 'Information and Communication', 'Health and Medical Services'. The second factors are 'crimes and accidents', 'environmental management', 'neighbor relations and social participation', and the third factors united into 'income and consumption activities', 'job creation' which imply the economic variables, and 'residential environment' as the common category.

• Development and Reproduction
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• v.20 no.3
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• pp.179-185
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• 2016

The insulin-like growth factor (IGF) pathway is a key signal transduction pathway involved in cell proliferation, migration, and apoptosis. In dairy cows, IGF family proteins and binding receptors, including their intracellular binding partners, regulate mammary gland development. IGFs and IGF receptor interactions in mammary glands influence the early stages of mammogenesis, i.e., mammary ductal genesis until puberty. The IGF pathway includes three major components, IGFs (such as IGF-I, IGF-II, and insulin), their specific receptors, and their high-affinity binding partners (IGF binding proteins [IGFBPs]; i.e., IGFBP1-6), including specific proteases for each IGFBP. Additionally, IGFs and IGFBP interactions are critical for the bioactivities of various intracellular mechanisms, including cell proliferation, migration, and apoptosis. Notably, the interactions between IGFs and IGFBPs in the IGF pathway have been difficult to characterize during specific stages of bovine mammary gland development. In this review, we aim to describe the role of the interaction between IGFs and IGFBPs in overall mammary gland development in dairy cows.

• The Korean Journal of Community Living Science
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• v.21 no.3
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• pp.299-310
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• 2010

The purpose of this study was to develop a scale to assess a Korean home environment for middle childhood children. The subjects were 283 mothers of 6- to 8-year-old children in Korea. The method for data analysis included Mean, SD, $x^2$, Cramer's V, factor analysis, Pearson correlations, and Cronbach's $\alpha$. As a result, 45 items of the scale were found to be satisfactory in terms of item distribution and item discrimination(Cramer's discriminant coefficients ranged from .256-.615). Four factors with 21 items were extracted from the factor analysis. Subscales were 'academic stimulation(9)', 'acceptance(4)', 'child-centered environment(4)', 'basic care for daily routine(4)'. Analysis of the relation of this scale to SES, MC-HOME, and children's developmental functioning(cognitive, language, and social) showed acceptable concurrent validity. Internal consistency of this scale was high, including internal reliability of subscales. These results confirm this scale as a valid and reliable measure of the Korean home environment for middle childhood children.