• Title/Summary/Keyword: University Adaptability

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A COMPARISON OF THERMOPLASTICIZED INJECIABLE GUTTA-PERCHA TECHNIQUES IN RIBBON-SHAPED CANALS : ADAPTATION TO CANAL WALLS (리본 형태의 근관에서 열연화주입법의 근관벽에 대한 적합도에 관한 연구)

  • Hwang, Hyun-Sook;Cho, Kyung-Mo;Kim, Jin-Woo
    • Restorative Dentistry and Endodontics
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    • v.27 no.4
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    • pp.411-420
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    • 2002
  • The aim of this study is to compare the adaptability of thermoplasticized injectable gutta-percha technique to the canal walls in ribbon-shaped canals. Thirty resin models simulated ribbon-shape canals were instrumented to #40 using .06 taper Profile systems. Three groups of each 10 resin models were obturated by the lateral condensation technique(LC) and the two thermoplasticized injectable gutta-percha technique; Ultrafil Endoset+Obtura II(EO) and Ultrafil Firmset(UF), respectively. After resin model were kept at room temperature for 4 days, they were resected horizontally with micro-tome at 1, 2, 3, 4 and 5mm levels from apex. At each levels. image of resected surface were taken using CCD camera under a stereomicroscope at $\times$40 magnification and stored. Ratio of the area of gutta-percha was obtained by calculating area of gutta-percha cone to the total area of canal using digitized image-ana-Iyzing program. The data were collected then analyzed statistically using One-way ANOVA. The results were as follows. 1 At 1mm levels, there was no statistically significant difference in the mean ratio of gutta-percha among the groups. 2. At 2mm level, EO showed the highest mean ratio of gutta-percha (p<0.05) and there was no significant difference between LC and UF. 3. At 3, 4, 5mm levels, EO and UF had significantly greater mean ratio of gutta-percha than LC(p<0.05) and there was no significant difference between EO and UF. In conclusion, the thermoplasticized injectable gutta-percha techniques demonstrated relatively favorable adaptability to canal walls than lateral condensation technique in ribbon-shaped canals except for 1mm level.

Study on Sleeve Pattern of Tailored Jacket of Females in their Twenties (20대 여성의 테일러드 재킷 소매패턴에 관한 연구)

  • Hwang, Seon-Ha;Kim, Ji-Hyeon;Kim, Hyo-Sook
    • Journal of the Korea Fashion and Costume Design Association
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    • v.17 no.3
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    • pp.183-196
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    • 2015
  • This study aims to develop sleeve pattern of tailored jacket which shows seamlessly beauty of females in their twenties who have relatively smaller change of body compared people of other ages and has outstanding functional operation. So we selected a pattern of manufacturer who received highest score after evaluating wearing condition of three types of jacket in the industry, whose targets are career women in their twenties and then tested its appearance and functional operation of 6 experimental jackets with armhole depth of B/4 and B/4-1(cm) along with sleeve cap height of A.H/3, A.H/3+1, A.H/3+2. As a result, the pattern which has good result of external appearance evaluation were sleeve with armhole depth of B/4-1 and sleeve cap height of A.H/3+2 as well as sleeve with armhole depth of B/4-1 and sleeve cap height of A.H/3+1. The pattern of good result for movement adaptation were sleeve with armhole depth of B/4-1 and sleeve cap height of A.H/3 as well as sleeve with armhole depth of B/4 and sleeve cap height of A.H/3. So we could find that the larger is the armhole depth and height of sleeve, the better influence on adaptability of jacket it makes and that the smaller is the armhole depth and height of sleeve, the better influence on movement adaptability of jacket it makes. It has been proved that armhole depth of tailored jacket of females in their twenties doesn't affect significantly on its appearance when designing it but it makes good influence on movement adaptability when experimental clothing has armhole depth of B/4-1and that sleeve cap height of A.H/3 that is 1cm shorter than A.H/3+1 which is used in industry makes good influence on appearance and functional operation.

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Use of Dietary Salt to Rainbow Trout (Oncorhynchus mykiss) for Increasing Seawater Adaptability (무지개송어(Onchorhynchus mykiss)의 해수 적응 능력 개선을 위한 식염사료의 적용)

  • Kim, Pyong-Kih;Kim, You-Hee;Jeon, Joong-Kyun
    • Journal of Aquaculture
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    • v.18 no.2
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    • pp.69-75
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    • 2005
  • One 30-day feeding trial was conducted to examine the effects of dietary salt on seawater adaptability of rainbow trout (Onchorhynchus mykiss) fed three experimental diets containing 0% (control), 4% and 8% salt. The experimetal period included 30 days of feeding trial in freshwater, 3 days of the step by step seawater acclimation with-out feeding diets, and 21 more days of seawater adaptation period (not with all experimental fish) with feeding the basal diet. Growth rates from triplicate groups were determined fur 30 days of feeding trial. Blood samples were taken at the begining and at the end of feeding trial, and 3 times (on 1st, 4th and 8th day) of the seawater adaptation period. Daily survival rates of duplicate groups from three experimetal treatments were recorded for 21 days of the seawater adaptation period. Total average initial and final fish weight were $149.5{\pm}7.6\;and\;187.1{\pm}7.6g$. Feed efficiency of fish fed diets containing 4% and 8% salt were significantly better than those of fish fed the control diet. Average cumulative survival rates were 72, 80 and 88% from the control, 4% and 8% salt diets, respectively. Pulse rate per minutes decreased with dietary salt level. Serum $Na^+\;and\;Cl^-$ concentrations of fish fed 4% and 8% salt diets were significantly higher than those of fish fed the control diet (P<0.05), however, the concentrations were stabilized after 8 days of seawater adaptation. Serum cortisol, glucose, cholesterol and tryglyceride concentrations, and the osmorality of fish decreased with dietary salt level, these values were significantly lower than those of fish fed the control diet. These results indicated that the dietary supplementation of salt could have advantages for seawater adaptability of rainbow trout.

The Antecedent and Consequences of Internal Service Quality (내부서비스품질과 관련 변수들과의 관계에 관한 연구)

  • Kang, Gi-Du
    • Journal of Korean Society for Quality Management
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    • v.33 no.3
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    • pp.1-18
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    • 2005
  • Internal marketing has been suggested as the approach for service organizations to be service-and customer-oriented; and the issues of internal service quality has been one of topics widely discussed in the internal marketing literature. The purpose of the current study is to examine the antecedents and consequences of internal service quality which is believed to increase such organizational performances as customer satisfaction, retention and revenue. In consistent with the previous studies in service marketing literatures, the current study identifies several constructs as the antecedents and consequences of internal service quality: management commitment to service quality, employee satisfaction, self-efficacy, and adaptability. The empirical study testing the causal relationships' among the constructs verifies the proposed relationships among the constructs suggested in the current study.

Effect of High Nitrogen Application on Two Components of Dark Respiration in a Rice Cultivar Takanari

  • Akita, Shigemi;Lee, Kwang-hong
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.47 no.4
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    • pp.323-327
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    • 2002
  • Plant growth and the two components of respiration, growth and maintenance, were compared between low and high nitrogen applications in hydroponic culture on a high-yielding rice cultivar 'Takanari' (Oryza sativa L.). Grain yield decreased by high nitrogen application, and thus this cultivar has low adaptability to nitrogen. Growth efficiency (GE) and net assimilation rate (NAR) were lower in the high-nitrogen plot. The maintenance coefficient (m) and growth coefficient (g) of dark respiration were 0.0111 $d^{-1}$ and 0.196 in the low-nitrogen plot and 0.0166 $d^{-1}$ and 0.237 in the high-nitrogen plot, respectively. Thus, high nitrogen application increased both g and m. Calculated $R_m$ (maintenance respiration rate) was 70 and 90% of total respiration rate at heading, respectively. The significance of nitrogen adaptability and g was discussed.

Cross-Layer Design for Mobile Internet Services in Cellular Communications Systems

  • Jeong, Dong-Geun
    • Information and Communications Magazine
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    • v.24 no.2
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    • pp.64-73
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    • 2007
  • Recently, cross-layer design approach has been greatly attracting researchers' attention as an alternative for improving the performance of wireless data networks. The main reason why cross-layer approaches are particularly well suited for wireless networks is that there exists direct coupling between physical layer and upper layers. Therefore, with cross-layer approach, the protocol designers try to exploit the interaction between layers and promote adaptability at all layers, based on information exchange between layers. In this article we focus on the cross-layer engineering for high data-rate mobile Internet services through cellular networks. First, the general considerations in cross-layer engineering are outlined. Then, we discuss the common approach in literatures, which mainly deals with adaptability in physical and medium access control layer. Finally, we show that the cross-layer engineering taking account of all layers is more adequate for the mobile Internet services cellular network.

A Workable Framework or a Fuzzy Concept? The Regional Resilience Approach to the Evolution and Adaptability of Regional Economies

  • Cho, Cheol-Joo
    • World Technopolis Review
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    • v.3 no.2
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    • pp.66-77
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    • 2014
  • This paper aims at exploring a conceptual framework of analyzing the evolutionary processes of regional economies by reconciling the notion of regional resilience and the concepts prevailing in the disciplines of evolutionary economics and geography. The resilience framework appears to offer a promising outlet with which combination of the seemingly contradictory conceptions is made possible. It can address why some regions manage to adapt to external shocks, renew themselves, or lock out themselves, while others are more locked in decline. In addition, it can also explain how the spatial organization of economic production, distribution, and consumption is transformed over time. Then, regional economic resilience, together with its accompanying vehicle of panarchy, emerges as a workable framework of explaining regional differentiation in regional economic performance and trajectories. Despite the risk of being a fuzzy concept, the resilience conception can be properly operationalized to provide policy principles of regional economic innovation adjusted to region-specific contexts.

Analysis of Variables Affecting Young Children's Relational and External Aggression (유아의 관계적, 외현적 공격성에 영향을 미치는 관련변인들의 탐색)

  • Kim, Yeon
    • Journal of the Korean Home Economics Association
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    • v.48 no.1
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    • pp.55-66
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    • 2010
  • The purpose of this study was to investigate the role of variables on young children's external aggression and relational aggression. Specifically, young children's temperaments and gender differences, parental marital conflicts, fathers' anti-social behaviors, mothers' child-rearing behaviors and psychological characteristics were studied. The findings of the study were as follows: Firstly, it was found that male children exhibited a higher level of external aggression than female children, while there was no significant difference between male and female children in terms of relational aggression. Secondly, analysis of variables such as children's temperaments and domestic environments revealed that fathers' anti-social behaviors, the adaptability of young children's temperaments and mothers' depression tendency have significant explanatory adequacies for young children's relational aggression. Furthermore, gender difference adaptability, activity and emotionality of young children's temperaments, in addition to parental marital conflicts, also have significant explanatory adequacies for young children's external aggression.

Local Adaptability of Buckwheat Species in Luang Prabang Region, Lao P.D.R

  • Briatia, Xoxiong;Lee, Myung-Heon;Hong, Soon-Kwan;Sung, In-Je;Chang, Kwang-Jin;Park, Byoung-Jae;Park, Cheol-Ho
    • Korean Journal of Plant Resources
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    • v.25 no.3
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    • pp.357-362
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    • 2012
  • The potential cultivation of buckwheat species in Luang Prabang region, Lao PDR where the species has not been naturally grown and not traditionally utilized was studied to introduce buckwheat as a new agricultural material, especially for food and medicine. The growth of Tartary buckwheat species was higher than common buckwheat showing 2.3 fold of plant height compared to common buckwheat. Number of flower per plant in Tartary buckwheat (731) was three fold higher than common buckwheat (244). Dry weight per plant was respectively 1.7 g in Suwon No. 1, 2.6 g in Suwon No. 2, and 1.4 g in KW45. The rate average of seed setting was similar between common buckwheat (41 to 46 %) and Tartary buckwheat (44%). Total seed yield of Tartary buckwheat (184 kg/10 a) in 10a could be estimated to be higher than that of common buckwheat (108 kg/10 a).

Differential Seawater Adaptability in Three Different Sizes of Under-yearling Steelhead Trout

  • Lee, Myeongseok;Lee, Jang-Won
    • Development and Reproduction
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    • v.24 no.3
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    • pp.215-224
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    • 2020
  • Seawater adaptability of steelhead trout increases along with the increase in the size of the fish, independent of parr-smolt transformation. Three 96 h seawater challenge tests were conducted to determine the size at which seawater adaptability of steelhead trout develops. Plasma Na+ and Cl- levels, moisture content, gill Na+/K+ ATPase activity, and mortality during the 96 h after direct transfer to seawater (32 ppt) were determined. Plasma Na+ and Cl- levels in 50 g fish continuously increased during the 96 h after the transfer to seawater (p<0.05), but the levels in 100 and 150 g fish leveled off after 24 h (p<0.05). Both 100 and 150 g size steelhead trout maintained muscle moisture content (%) better than 50 g size fish (p<0.05). Gill Na+/K+ ATPase activity in the 100 g size group increased in a time-dependent manner after transfer to seawater (p<0.05), whereas activity in the 50 and 150 g sizes did not increase (p>0.05), for which a possible explanation was discussed. A mere 2.6% mortality in both the 50 and 150 g size groups was observed. In conclusion, the current results indicate that 50 g size steelhead trout did not show development of a high level of hypoosmoregulatory capacity, whereas fish in the 100 and 150 g size groups showed a high level in our experimental conditions. Therefore, the steelhead trout larger than a 100 g size is recommended for transfer to seawater culture.