• Computers and Concrete
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• v.21 no.2
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• pp.149-156
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• 2018

This paper investigated the influence of binary and ternary blends of mineral admixtures in self-compacted mortar (SCM) on the fresh, mechanical and durability properties. For this purpose, 25 mortar mixtures were prepared having a total binder content of $640kg/cm^3$ and water/binder ratio between 0.41 and 0.50. All the mixtures consisted of Portland cement (PC), fly ash (FA) and silica fume (SF) as binary and ternary blends and air-entrained admixture wasn't used while control mixture contained only PC. The compressive and tensile strength tests were conducted for 28 and 91 days as well as slump-flow and V-funnel time tests whilst freeze-thaw (F-T) resistance and capillary water absorption tests were made for 91-day. Finally, in general, the use of SF with FA as ternary blends improved the tensile strength of mortars at 28- and 91-day while the use of SF15 with FA increased the compressive strength of the mortars compared to binary blends of FA. SCM mixtures with ternary blends had lower the sorptivity values than that of the mortars with binary blends of FA and the control mixture due to the beneficial properties of SF while the use of FA with SF as ternary blends induced the F-T resistance enhancement.

• Journal of the Korean Society of Costume
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• v.48
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• pp.53-70
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• 1999

The theatre costume in English Renaissance which is scarce in its historical materials can be inferred and imaginarily reconstructed from classifying it according to types of theatre costumes and considering its specific form in that age. The history of fashion could be also approached in the light of theatre costumes and it might be some help to the present theatre costume. Thus the purpose of this thesis is for contributing to the study of theatre costume by inferring the English Renaissance theatre costume from classifications and research of its pattern in detail. This thesis consists of the overview of the periodical background of English Renaissance and then analysis of the stage surroundings ar that time and classification of the theater costume acording to the types and finally inferences of the pattern of forms of the theatre costume. The theatre costume in English Renaissance can be divided into these group:(1) for foreigners such as Roman Turk Spanish and Jews (2) for supernatural beings such as a nymph god, goddess, ghosts, and witches(3) for professionals such as a clown, a clergyman. doctors and senators(4) for cast of animals such as a lion a bear and pigs. In the Elizabethan period theatre costumes were used together with Elizabethan costumes on the stage. Generally the theatre costumes in the age were typically made of very expensive materials and spectacles to the audience and compensating for the poor stage settings.

• Korean Journal of Pharmacognosy
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• v.50 no.4
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• pp.239-244
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• 2019

Boehmeria pannosa (Urticaceae) is a perennial herb widely distributed in Korea. In this study, investigation on the constituents of B. pannosa was conducted by chromatographic techniques and spectroscopic analysis. As a result, nine compounds including eight phenolic compounds, 3-hydroxy-1-(4-hydroxyphenyl)propan-1-one (1), β-hydroxypropiovanillone (2), C-veratroylglycol (3), 3-hydroxy-1-(4-hydroxy-3,5-dimethoxyphenyl)-propan-1-one (4) 2,3-dihydroxy-1-(4-hydroxy-3,5-dimethoxyphenyl) -1-propanone (5), p-coumaric acid (6), 4-hydroxybenzoic acid (7), vanillic acid (8) and one lignan, (-)-(7R,8S)-dihydrodehydrodiconiferyl alcohol (9) were isolated from the EtOAc-soluble fraction of B. pannosa. Among them, compounds 5, 6 and 9 inhibited α-glucosidase inhibitory activity more than 50% at the concentration of 100 μM.

• Journal of Distribution Science
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• v.18 no.3
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• pp.15-24
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• 2020

Purpose: The purpose of this study is to investigate the mediating effect of conspicuous brand usage between brand experience and brand loyalty in relational perspective, and to probe the difference between the positively experienced consumers and the negatives. Research design, data and methodology: Apple iPhone, Samsung Galaxy, and other brands were suggested as consideration set to be selected from 223 Amazon Mechanical Turk respondents, and they answered the structured survey of 33 questions made by Qualtrics with 5-point Likert scale. Structural Equations Model (SEM) was employed to test the hypothesized model, and RStudio and SPSS 18 were used to analyze the dataset. Results: It was confirmed that the more consumers have positive brand experience, the more they are loyal to brand. Conspicuous brand usage can be positively mediated, and consumers who experienced high conspicuous brand usage are more likely to be loyal to the brand. Conclusions: It is noteworthy to find the mediating effect of conspicuous brand usage, and the hidden mechanism between brand experience and brand loyalty. Managers can promote positive conspicuous brand usage when consumers get in touch with product and service channels. By providing impressive conspicuous brand experience, the brand loyalty of the band can be enhanced.

• 한국정보디스플레이학회:학술대회논문집
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• 2006.08a
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• pp.763-767
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• 2006

Directionally solidified Si films obtained via line-scan SLS can lead to attainment of high-mobility TFTs. The crystallographic texture of the resultant materials can potentially be an important factor because the spatial details thereof may impact the overall device uniformity. Here, we present EBSD analysis of these materials that reveal the existence of relatively large domains with different textures and differing amounts of defects, which in turn, may adversely affect device uniformity.

• The Journal of Asian Finance, Economics and Business
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• v.5 no.4
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• pp.107-116
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• 2018

The aim of this study is to delve deeper into the online brand community study. This study tests (a) the effects of online brand community on its outcomes, (b) the impact of value creation practice construct as a whole, (c) the effects of value creating practice construct on the two types of loyalty, loyalty toward the brand and the community. Participants of this study (N=353) are members of four types of online brand communities (e.g., business-to-consumer virtual product support community, firm-hosted online community, user-generated online community, peer-to-peer problem-solving community, and social media based brand community). Data were collected online using Amazon Mechanical Turk from April 10, 2016 to May 10, 2016. The data were analyzed through structural equations modeling using AMOS 20. The three community markers (e.g., consciousness of kind, rituals and traditions, and moral responsibility) and the four value creation practices (e.g., social networking, impression management, community engagement, and brand use) are proved to be significant indicators of online brand community and value creation practice constructs, respectively. Test results showed that strong and effective online brand communities generate value creation practices, and value creation practices enhance brand loyalty. The mediating effects of community loyalty between value creation practices and brand loyalty were revealed.

• Journal of Distribution Science
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• v.17 no.9
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• pp.15-23
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• 2019

Purpose - This study was aimed to investigate the moderating effects of cobranding promotions that are rare in brand experience and brand loyalty studies, and to find out cobranding promotions can play a moderating role to enhance positive effects on the relationship between brand experience and brand loyalty, and to figure out the cobranding types which can lead to positive brand loyalty. Research design, data, and methodology - The conceptual research model was developed to explain the effects, and 2018 Interbrand's global top 15 brands such as Apple, Google, Amazon, Samsung were suggested to be selected from 377 Amazon Mechanical Turk respondents to answer the 22 survey questions made by Qualtrics with 5-point Likert scale. Results - In this research, the moderating effects of cobranding have been confirmed on the relationships between brand experience and loyalty, and the positive cobranding promotions can have significant effects on the relationships, but only for the least experienced brand was significant. Regarding to cobranding types, there were no significant ones to enhance brand loyalty. Conclusions - The findings confirmed that cobranding promotion experience can play a positive moderating role to brand loyalty, and the loyalty can be maximized if companies can provide positive cobranding experiences to their own consumers.

• Journal of Distribution Science
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• v.18 no.8
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• pp.35-45
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• 2020

Purpose: Do close linkages among employees during service encounters always enhance customer satisfaction? Drawing on literature in social psychology, this research argues that under certain circumstances close linkages among employees undermine customer satisfaction. More specifically, this research explores a service failure context and shows that higher task interaction among employees during service encounters leads to higher perceived firm entitativity, resulting in an individual employee's service failure being detrimental to customer satisfaction with the firm. Data and research methodology: A series of experiments using scenarios across different service contexts was used in order to test hypotheses. Data was collected via Amazon Mechanical Turk and the models were tested using Hayes PROCESS. Results: The results show that interactions among employees during service result in 1) lower satisfaction with the firm and 2) lower revisit intentions in the future when there is a service failure by an individual employee. Following the main effects analysis, mediation analysis shows that the effect of employee interaction on customer satisfaction with the firm and revisit intention is mediated by perceived firm entitativity. Implications: By examining contexts where employee interaction may be detrimental to firms, this research provides novel insights on how to manage communications among service employees.

• Structural Engineering and Mechanics
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• v.23 no.5
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• pp.469-486
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• 2006

The main objective of this study was to investigate the seismic behavior of damaged reinforced concrete frames rehabilitated by introducing cast in place reinforced concrete infills. Four bare and five infilled frames were constructed and tested. Each specimen consisted of two (twin) 1/3-scale, one-bay and two-story reinforced concrete frames. Test specimens were tested under reversed-cyclic lateral loading until considerable damage occurred. RC infills were then introduced to the damaged specimens. One bare specimen was infilled without being subjected to any damage. All infilled frames were then tested under reversed-cyclic lateral loading until failure. While some of the test frames were detailed properly according to the current Turkish seismic code, others were built with the common deficiencies observed in existing residential buildings. The variables investigated were the effects of the damage level and deficiencies in the bare frame on the seismic behavior of the infilled frame. The deficiencies in the frame were; low concrete strength, inadequate confinement at member ends, 90 degree hooks in column and beam ties and inadequate length of lapped splices in column longitudinal bars made above the floor levels. Test results revealed that both the lateral strength and lateral stiffness increased significantly with the introduction of reinforced concrete infills even when the frame had the deficiencies mentioned above. The deficiency which affected the behavior of infilled frames most adversely was the presence of lap splices in column longitudinal reinforcement.

• Advances in concrete construction
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• v.10 no.3
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• pp.257-269
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• 2020

The aim of this study is to investigate the flexural performance of hybrid fiber reinforced self-compacting concrete (HFRSCC) having different ratio of micro and macro steel fiber. A total of five mixtures are prepared. In all mixtures, the sum of the steel fiber content is 1% and also water/binder ratio is kept constant. The amount of high range water reducer admixture (HRWRA) is arranged to satisfy the workability criteria of self-compacting concrete. Four-point bending test is carried out to analyze the flexural performance of the mixtures at 28 and 56 curing days. From the obtained load-deflection curves, the load carrying capacity, deflection and toughness values are investigated according to ASTM C1609, ASTM C1018 and JSCE standards. The mixtures containing higher ratio of macro steel fiber exhibit numerous micro-cracks and, thus, deflection-hardening response is observed. The mixture containing 1% micro steel fiber shows worst performance in the view of all flexural parameters. An improvement is observed in the aspect of toughness and load carrying capacity as the macro steel fiber content increases. The test results based on the standards are also compared taking account of abovementioned standards.