• 제목/요약/키워드: k-value

검색결과 47,411건 처리시간 0.065초

유리섬유 보강재 첨가에 따른 레진 의치상의 강화효과 (Strengthening effect of resin denture base by glass fiber reinforcement addition)

  • 김총명;김지환;김혜영;김웅철
    • 대한치과기공학회지
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    • 제36권1호
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    • pp.1-7
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    • 2014
  • Purpose: The aim of this study was analyzed by comparing the effect of glass fiber reinforcement addition on the strength of resin denture base. It was intended to provide a reference data useful for clinical application. Methods: The test specimens (length $64.0{\pm}0.1mm$, width $10.0{\pm}0.1mm$, thickness $1.0{\pm}0.1mm$, $1.5{\pm}0.1mm$, and $2.0{\pm}0.1mm$ respectively) were made. In the experimental groups resin denture base reinforced with glass fiber were fabricated. In the control groups resin denture base were fabricated by conventional method. After specimen fabrication was completed, transverse test was performed using a universal testing machine. Results: The transverse strength value in CON group was $83.08{\pm}9.07MPa$ for 1.0 mm, which ranked the highest in value. On the other hand, the value was $56.07{\pm}5.15MPa$ for 2.0mm, which ranked the lowest in value. And CON+SES group was $119.80{\pm}30.70MPa$ for 1.0mm, which ranked the highest in value. On the other hand, the value was $84.00{\pm}7.97MPa$ for 2.0mm, which ranked the lowest in value. Also, the flexural modulus value in CON group was $2,983.10{\pm}506.92MPa$ for 1.0mm, which ranked the highest in value. On the other hand, the value was $1,257.64{\pm}230.48MPa$ for 2.0mm, which ranked the lowest in value. And CON+SES group was $4,679.41{\pm}1578.29MPa$ for 1.0mm, which ranked the highest in value. On the other hand, the value was $2,512.36{\pm}527.09MPa$ for 2.0mm, which ranked the lowest in value. Conclusion: The reinforced glass fiber increased the strength of resin denture base, effected to reduce the thickness of resin denture base.

Analysis of Microsatellite Markers on Bovine Chromosomes 1 and 14 for Potential Allelic Association with Carcass Traits in Hanwoo (Korean Cattle)

  • Choi, I.S.;Kong, H.S.;Oh, J.D.;Yoon, D.H.;Cho, B.W.;Choi, Y.H.;Kim, K.S.;Choi, K.D.;Lee, H.K.;Jeon, G.J.
    • Asian-Australasian Journal of Animal Sciences
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    • 제19권7호
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    • pp.927-930
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    • 2006
  • This study was conducted to investigate potential effects of previously identified QTL regions on carcass traits in Hanwoo. The data analyzed in this study was collected from 326 steers of 67 proven sire. Thirteen micorsatellite markers spanning QTL regions on bovine chromosomes 1 and 14 were genotyped in 326 steers. The following breeding values were analyzed for QTL effects. Cold carcass weight breeding value (CCWBV), longissimus muscle area breeding value (LMABV), marbling score breeding value (MSBV) and backfat thickness breeding value (BFTBV). Chi-square tests were performed to compare frequencies of individual allele between high and low breeding value groups. Significant differences of allele frequencies in BMS711, MCM130, BMS4049, and BMS2263 were found. And also, in RM180, BL1029, BM4305, and BMS2055 there were significant differencies of allele frequencies. These results showed a potential application for investigation of putative QTL locations.

치과 임플란트 환자의 의료서비스 질 만족과 가치만족, 재이용의사의 관계에 관한 연구 (Relationship between satisfaction of dental service, value quality, and reuse intention)

  • 전지현;민희홍;김영숙
    • 한국치위생학회지
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    • 제14권5호
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    • pp.765-773
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    • 2014
  • Objectives : The objective of study is to investigate the relationship between the satisfaction of dental service, value quality, and reuse intention among dental implant patients. Methods : A self-reported questionnaire was filled out by 316 dental implant patients in 4 dental clinics in Daejeon from December, 2013 to March, 2014. Results : The average of dental service satisfaction was 4.14(SD=.562). The average of value satisfaction was 3.88(SD=.648), and that of reuse intention was 3.98(SD=.662). The tangibility was defined as the influence of the quality of medical service on the value satisfaction(t=4.042, p<0.001) and the confidence(t=2.997, p<0.01). The influence of the service value on the intention to reuse was 0.486(t=10.796, p<.001) of path coefficient. Conclusions : The quality of medical service is decided by the value satisfaction and the intention to reuse including the value satisfaction.

The Study on the Effect of Experience Values of Chinese Coffee Shop on the Intent of Revisiting of Consumers: Focusing on the Mediation Effect of Emotional Responses

  • KANG, Min-Jung;WAN, Yeo-Sun;HWANG, Hee-Joong
    • 유통과학연구
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    • 제17권11호
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    • pp.47-52
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    • 2019
  • Purpose: This study specifically discusses why coffee shop customers want to revisit coffee shops. In addition, we would like to verify the mediated effect of the emotional reaction in relation to the influence of the experience values of the Chinese coffee shop on the re-visit of the coffee shop. Research design, data and methodology: Regression and reliability analyses were conducted. Simple regression was used for stock price verification, and the bootstrap method of model4 of Hayes was performed for the intermediate hypothesis verification. Results: This study confirmed that the experience values of coffee shops (entertainment, aesthetic, economic efficiency, and service excellence) have a significant influence on customers' intention to revisit coffee shops. Conclusions: Managers can check that the level of revisit by customers is increased by increasing the elements of experience value. In addition, studies have shown that the customer's emotional reactions play a significant mediating role in the relationship between the value of the experience and the customer's intention to revisit the coffee shop. This suggests that the coffee shop operator should focus on the emotional response of its customers and devise strategies to ensure that the value of the experience is connected to the intent of revisiting.

디저트 카페의 브랜드 가치와 브랜드 충성도 관계에 브랜드 신뢰의 매개효과 (The Mediating Effect of Brand Trust on the Relationship between Brand Value and Brand Loyalty in the Dessert Cafes)

  • 권기완;최익준;김경은
    • 한국조리학회지
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    • 제23권5호
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    • pp.48-57
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    • 2017
  • This study aims to analyze the relationships among brand value, brand trust, and brand loyalty of dessert cafes and to verify the mediating effect of brand trust in the relationship between brand value and loyalty. This study targeted eight dessert cafes located in Seoul, and a survey with customers aged 20 or over was conducted over 11 days from April 10th to 21th, 2017. A total of 230 self-administered questionnaires were distributed, and 205 questionnaires (89.13%) were included for the data analysis after the exclusion of 25 incomplete and unreliable responses. Every data used for analysis went through frequency analysis, reliability test, exploratory factor analysis, simple regression analysis, multiple regression analysis, mediator effect analysis, and Sobel test using the SPSS 18.0 analysis program. The study results revealed that brand value had a significant positive relationship to brand trust, and brand trust had a significant positive relationship to brand loyalty. Also, brand value had a significant positive relationship to brand loyalty, and brand trust mediated the relationship between brand value and loyalty. Based on these findings, the discussion to enhance brand loyalty of dessert cafes were suggested.

냉난방수배관시스템용 차압독립형 유량제어밸브의 유동특성 연구 (A Study of Flow Characteristics in Pressure Independent Control Valve for Hydronic System)

  • 민준기;원보영;정신규
    • 한국지열·수열에너지학회논문집
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    • 제13권3호
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    • pp.9-15
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    • 2017
  • In this study, set values of PICV(Pressure Independent Control Valve) were simulated according to the pressure distribution and velocity. The higher the set value and the open rate, as the lower the pressure in the neck. On the contrary, the lower the set value and open rate, as the higher the pressure in the neck. When the set value was small, the pressure was distributed sufficiently and confirmed that the pressure was generated by the VOF, confirming that it could generate a vapor pressure. When the set value 100 %, the lower corn open rate of the differential pressure was 46 % to 29 %, set value 100 % was 29 % to 19 %, and set value 6 % was 12 % to 6 % for the lower corn open rate percentile, it was limited to within 50 %. Thus, the results of this study on the correlation between open rate and differential pressure of the set value of the PICV will be beneficial to improve performance of flow control valves and contribute to their efficient operation used for a hydronic system.

남한산성도립공원 등산객과 비등산객의 장소 가치인식 비교 연구 (Comparison between Hiker and Non-hiker's Sense of place value at Namhansanseong Provincial Park)

  • 김예은;김현;백난영
    • 농촌계획
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    • 제21권4호
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    • pp.127-137
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    • 2015
  • This Study attempted to comprehend difference between hiker and non-hiker's sense of place value at Namhansanseong Provincial Park. Especially, it was analyzed after visitors, who were divided into local residents & tourists and first time visitors & repeat visitors. Out of 600 visitors, who were over 19 years old, participated in the survey, 587 responses were used for data analysis. Consequently, Sense of place value at Namhansanseong Provincial Park were classified into three factors: Health Culture, Ecology Environment, and Connectedness. Hikers feel higher value on promotion of health, relaxation, environment than non-hikers. Among hikers, local residents feel higher value on ecology environment and connectedness than tourists. Among non-hikers, however, they have no difference between local residents and tourists, only repeat visitors and first time visitors. On this result, possibility of resident participation management on natural environment and trail was considered, and when the program, which is for raising cultural and traditional value, would develop, increasing number of repeat visitor should be considered as a high priority.

정보통신산업(ICT)의 글로벌 가치사슬구조분석 (Global Value Chain Structure Analysis for ICT Industry)

  • 조상섭;채동우;이중만
    • Journal of Information Technology Applications and Management
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    • 제26권6호
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    • pp.65-78
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    • 2019
  • This study describes the accounting approach of separating the value chain components that occur between the origin and destination of a country's total exports, and applied this analysis to the nation's information and communication industry. As a result of this study, the analysis results of ICT's global value chain for the United States and China, focusing on Korea, are as follows: First of all, the value added standard was relatively lower than the export amount standard for the information and communication industry. In particular, the gap was starkly visible in the information and communication manufacturing sector, where global vertical specialization was developed relatively. As a representative sector, the computer-related equipment sector exported to China became more specialized vertically than other information and communication industries. Next, the method of participating in vertical specialization of Korea's information and communication sector and its relative position in the global value chain came from domestic products (0.25/35.16) whose total exports, which were double calculated in the case of the U.S. market, returned home. On the other hand, about 32.68 percent returned to the Chinese market. Finally, in the global value chain level, the SW sector occupied a medium vertical culture location for the information and communication equipment sector and the information and communication service sector.

석호환경의 보존가치 추정: 송지호를 중심으로 (Measuring the Conservation Value of Lagoons: The Case of Songji Lagoon)

  • 곽승준;유승훈;장정인
    • Ocean and Polar Research
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    • 제27권2호
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    • pp.161-169
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    • 2005
  • In recent days, most of the lagoons in Korea have been lost on account of indiscreet development and pollution. Thus, this study measures the conservation value of the Songji lagoon, a representative lagoon in Korea by using the contingent valuation (CV) method and specifies the non-use value of Songji lagoon. The survey was carefully desigrled and implemented to meet a number of recommendation rules suggested in the literature. The overall results show that the respondents well accepted the contingent market and would be willing to pay a significant amount for the proposed program to conserve Songii lagoon. Total Conservation value of Songji lagoon amounted to approximately 21.2 billion Korean won per year. Moreover, the non-use value of Songji lagoon amounted 15.7 billion Korean won per yew. The results of measuring the conservation value provide decision-makers with data indispensable to devising a conservation and management policy.

A Study on the Impact of Perceived Regulations for Sales at Super-Supermarket and Discount Store on Consumers' Shopping Value and Subjective Well-Being

  • Yang, Hoe-Chang;Jeon, Jun-Ho;Ju, Yoon-Hwang
    • 유통과학연구
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    • 제11권11호
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    • pp.83-88
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    • 2013
  • Purpose - This study focused on consumers' perception about regulations for sales enforced by national and local governments in Korea. The study examined the relationship between perceived regulatory restrictions and subjective well-being (SWB), and perceived regulatory restrictions and shopping value, respectively. Research Design, Data, and Methodology - Data were collected from 135 college students and consumers in Gyeonggi Province to verify the relationships, moderating effects, and mediating effects, thus testing the theoretical model and its hypotheses. Results - First, consumers' positive perception of regulatory restrictions enabled enhancement of their SWB. Second, consumers' positive perception of regulatory restrictions had no significant positive influence on hedonic value but had a significant positive influence on utilitarian value. Third, utilitarian value exhibited a full mediating effect on the relationship between regulatory restrictions and SWB. Conclusion - This study showed that consumers' positive win-win attitude is based on social norms. Further, we expect that consumers experiencing discomfort due to regulatory restrictions resolve this by going to other distributors. Finally, to increase distributors' competitiveness and consumers' utilitarian value, it is suggested that distributors require a variety of marketing strategies.