• Journal of Intelligence and Information Systems
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• v.20 no.3
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• pp.151-171
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• 2014

Firms today have sought management effectiveness and efficiency utilizing information technologies (IT). Numerous firms are outsourcing specific information systems functions to cope with their short of information resources or IT experts, or to reduce their capital cost. Recently, Software-as-a-Service (SaaS) as a new type of information system has become one of the powerful outsourcing alternatives. SaaS is software deployed as a hosted and accessed over the internet. It is regarded as the idea of on-demand, pay-per-use, and utility computing and is now being applied to support the core competencies of clients in areas ranging from the individual productivity area to the vertical industry and e-commerce area. In this study, therefore, we seek to quantify the value that SaaS has on business performance by examining the relationships among firm strategies, SaaS technology maturity, and business performance of SaaS providers. We begin by drawing from prior literature on SaaS, technology maturity and firm strategy. SaaS technology maturity is classified into three different phases such as application service providing (ASP), Web-native application, and Web-service application. Firm strategies are manipulated by the low-cost strategy and differentiation strategy. Finally, we considered customer acquisition as a business performance. In this sense, specific objectives of this study are as follows. First, we examine the relationships between customer acquisition performance and both low-cost strategy and differentiation strategy of SaaS providers. Secondly, we investigate the mediating and moderating effects of SaaS technology maturity on those relationships. For this purpose, study collects data from the SaaS providers, and their line of applications registered in the database in CNK (Commerce net Korea) in Korea using a questionnaire method by the professional research institution. The unit of analysis in this study is the SBUs (strategic business unit) in the software provider. A total of 199 SBUs is used for analyzing and testing our hypotheses. With regards to the measurement of firm strategy, we take three measurement items for differentiation strategy such as the application uniqueness (referring an application aims to differentiate within just one or a small number of target industry), supply channel diversification (regarding whether SaaS vendor had diversified supply chain) as well as the number of specialized expertise and take two items for low cost strategy like subscription fee and initial set-up fee. We employ a hierarchical regression analysis technique for testing moderation effects of SaaS technology maturity and follow the Baron and Kenny's procedure for determining if firm strategies affect customer acquisition through technology maturity. Empirical results revealed that, firstly, when differentiation strategy is applied to attain business performance like customer acquisition, the effects of the strategy is moderated by the technology maturity level of SaaS providers. In other words, securing higher level of SaaS technology maturity is essential for higher business performance. For instance, given that firms implement application uniqueness or a distribution channel diversification as a differentiation strategy, they can acquire more customers when their level of SaaS technology maturity is higher rather than lower. Secondly, results indicate that pursuing differentiation strategy or low cost strategy effectively works for SaaS providers' obtaining customer, which means that continuously differentiating their service from others or making their service fee (subscription fee or initial set-up fee) lower are helpful for their business success in terms of acquiring their customers. Lastly, results show that the level of SaaS technology maturity mediates the relationships between low cost strategy and customer acquisition. That is, based on our research design, customers usually perceive the real value of the low subscription fee or initial set-up fee only through the SaaS service provide by vender and, in turn, this will affect their decision making whether subscribe or not.

• The Journal of Engineering Geology
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• v.24 no.2
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• pp.261-271
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• 2014

An almost permanent anchor (friction type) is resistant to ground deformation due to the friction between the soil and grout at a fixed length from the anchor body. The purpose of this study is to calculate the force of bearing resistance for a bearing anchor in enlarged boreholes. We conducted analytical and numerical analyses, along with laboratory testing, to find the quantities of bearing resistance prior to grouting in EBA (Enlarged Bearing Anchor) construction. The force of bearing resistance from the analytical method was defined as a function of general borehole diameter, expanded borehole diameter, and soil unconfined compressive strength. We also employed the Flac 3D finite difference numerical modeling code to analyze the bearing resistance of the soil conditions. We then created a laboratory experimental model to measure bearing resistance and carried out a pull-out test. The results of these three analyses are presented here, and a regression analysis was performed between bearing resistance and uniaxial compression strength. The laboratory results yield the strongest bearing resistance, with reinforcement 28.5 times greater than the uniaxial compression strength; the analytical and numerical analyses yielded values of 13.3 and 9.9, respectively. This results means that bearing resistance of laboratory test appears to be affected by skin friction resistance. To improve the reliability of these results, a comparison field study is needed to verify which results (analytical, numerical, or laboratory) best represent field observations.

• Journal of the Korean Geotechnical Society
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• v.30 no.5
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• pp.25-35
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• 2014

The sedimentary rocks exposed around Mt. Palgong were subjected to metamorphism due to a granitic magma intrusion at late Cretaceous, and they eventually metamorphosed to hornfels by the action of both hydrothermal solution and high temperature supplied from the magma. The hornfels zone around the granite body ranges from 2.0 to 3.5 km in width but the boundary between hornfels and sedimentary rocks is not obviously defined because the metamorphic grade gradually decreases with distance from the granite boundary. A series of laboratory tests on 350 core specimens made by 35 fresh rock blocks obtained from 5 selected locations around Mt. Palgong are performed to verify the variation of physical and mechanical properties related to metamorphic grade of the rock. Water content and absorption ratio of the hornfels linearly increase with distance to the granite boundary whereas dry unit weight, p-wave velocity, point load strength, and slake durability index linearly decrease with the distance. These results imply that the metamorphic grade of the hornfels also linearly decrease with the distance to granite boundary. Empirical equations for the variation of properties with the distance to granite boundary and relationship between a property and another one are deduced by regression analyses. And a criteria for classification of hornfels exposed in the study area based on the P-wave velocity and point load strength is proposed.

• Journal of the Korea institute for structural maintenance and inspection
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• v.21 no.5
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• pp.49-55
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• 2017

In the seventies, a number of researchers carried out experiments on pullout tests with prototype equipment, and the pullout test was certified as a reliable nondestructive testing(NDT) method for determining the strength of concrete. To estimate the strength of high-strength concrete, we propose a simplified pullout test that uses as a break-off bolt a standard 10mm bolt with a groove on the shaft, an insert nut, and a pullout instrument that includes a hydraulic oil pump without a load cell. To verify the advantages of the simplified pullout test(low cost, simplicity, and convenience), four wall specimens were tested with two levels of concrete strength, 30 MPa and 50 MPa, using a simplified pullout tester with a load cell. The pullout load and concrete compressive strength were measured every day until day 7, day 14, day 21 and day 28. It was found that the pullout load was very similar to the compressive strength. Therefore, we have verified that a simplified pullout test can be used to evaluate the in-place strength of high-strength concrete in structures. The prediction equation of the groove diameter of the break-off bolt(y) with the concrete strength(x) was derived as y=0.05x+3.79, with a coefficient of determination of 0.88 found through regression analysis.

• Journal of Venture Innovation
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• v.2 no.2
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• pp.47-64
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• 2019

This study analyzed the effects of small business CEO's competencies type on business performance. For this purpose, 4 independent variables(strategic, marketing, management and network competencies) and 2 dependent variables(financial and non-financial performance) were used. 220 data were collected from the field survey questionnaires administered to a convenience sample of small business CEO. For hypothesis testing, the IBM SPSS Statistics 24.0 was used. Frequency analysis, exploratory factor analysis, correlation analysis, and hierarchical regression analysis were conducted. Empirical studies showed as follows. First, this study showed that the four competencies were significant to financial performance and the three competencies(except management competencies) were significant to non-financial performance. The higher small business CEO's competencies, the more likely it affects both the financial and non-financial performance of the company. Second, effects of small business CEO's competencies on financial performance were analyzed in order of network competencies > management competencies > strategic competencies > marketing competencies. Third, effects of small business CEO's competencies on non-financial performance were analyzed in order of network competencies > marketing competencies > strategic competencies. These findings had some implications. In academia, the impact forces of 4 small business CEO's competencies were analyzed for the first time. In practices, successful start-ups or sustainable management requires an interest in the active enhancement of small business CEO's competencies.

• Journal of Korean Academy of Nursing
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• v.26 no.2
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• pp.359-371
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• 1996

This study has been done for the purpose of testing the effect of health education on the performance of health promoting behavior in college students, and identifying the factors affecting health promoting behaviors. A Nonequivalent control group posttest research design was used. Two hundred thirty college students at K College in T city were studied. Of them, 114 who attended a systematic health education session for three hours a week during one semester were the experimental group. And 116 college students who were chosen of matched sampling of grade, class and sex were the control group. This study was conducted from March 1 to July 2, 1995. The instruments used for this study included a survey of general characteristics, perceived health status, self-esteem, health promoting behavior and health locus of control. Analysis of data was done by use of mean, 1-test, Pearson correlation coefficient and multiple regression. The results of this study are summarized as follows : 1) The average item score for the health promoting behavior was low at 2.52. In the sub-categories, the highest degree of performance was ‘harmonious relationships’, following ‘sanitary life’, ‘self-esteem’, ‘rest and sleep’, and ‘emotional support’ and the lowest degree was ‘professional health management’. 2) Hypothesis 1 that the college students who get health education will have a higher degree of health promoting behavior than the college students who do not get health education was accepted. There was a statistically significant difference between the average of the experimentalgroup, 2.60, and the average of the control group, 2.45.（t＝11.30, p＝0.0009）. 3) Hypothesis 2 that the college students who get health education will have a higher score of perceived health status than college students who do not get the health education was rejected. （t＝1.13, p＝0.289） 4) Performance of health promoting behavior was positively correlated with self-esteem and grade and negatively correlated with perceived health status. 5) The most important factor affecting performance of health promoting behavior was self-esteem. The following suggestions are made based on the above results : 1) Replication of the research is needed to confirm effects of health education. 2) More effective health education programs need to be developed through by modification of teaching methods and content analysis of health education. 3) Other factors affecting health promoting behavior should be identified. 4) Nursing colleges or departments of nursing should make an effort to develop and carry out various health education programs for the health promotion of all college students.

• The Journal of Advanced Prosthodontics
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• v.7 no.3
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• pp.183-190
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• 2015

PURPOSE. This study evaluated the fracture load of customized zirconia abutments with titanium insert according to preparation depths, with or without 5-year artificial aging. MATERIALS AND METHODS. Thirty-six identical lithium disilicate crowns (IPS e.max press) were fabricated to replace a maxillary right central incisor and cemented to the customized zirconia abutment with titanium insert on a $4.5{\times}10$ mm titanium fixture. Abutments were fabricated with 3 preparation depths (0.5 mm, 0.7 mm, and 0.9 mm). Half of the samples were then processed using thermocycling (temperature: $5-55^{\circ}C$, dwelling time: 120s) and chewing simulation (1,200,000 cycles, 49 N load). All specimens were classified into 6 groups depending on the preparation depth and artificial aging (non-artificial aging groups: N5, N7, N9; artificial aging groups: A5, A7, A9). Static load was applied at 135 degrees to the implant axis in a universal testing machine. Statistical analyses of the results were performed using 1-way ANOVA, 2-way ANOVA, independent t-test and multiple linear regression. RESULTS. The fracture loads were $539.28{\pm}63.11$ N (N5), $406.56{\pm}28.94$ N (N7), $366.66{\pm}30.19$ N (N9), $392.61{\pm}50.57$ N (A5), $317.94{\pm}30.05$ N (A7), and $292.74{\pm}37.15$ N (A9). The fracture load of group N5 was significantly higher than those of group N7 and N9 (P<.017). Consequently, the fracture load of group A5 was also significantly higher than those of group A7 and A9 (P<.05). After artificial aging, the fracture load was significantly decreased in all groups with various preparation depths (P<.05). CONCLUSION. The fracture load of a single anterior implant restored with lithium disilicate crown on zirconia abutment with titanium insert differed depending on the preparation depths. After 5-year artificial aging, the fracture loads of all preparation groups decreased significantly.

• Journal of Venture Innovation
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• v.1 no.1
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• pp.197-210
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• 2018

The purpose of this study is to analyze the relationship between the induction servicescape and the user satisfaction and repurchase intention about the restaurant tables embedded with the most advanced eco - friendly induction range. The main results of this study are as follows. The demographic characteristics of the respondents were 104 male respondents and 106 female respondents, with male - female ratio almost similar. The respondents' positions and responsibilities consisted of 68 restaurant representatives and 142 restaurant managers or persons in charge. The number of restaurants embedded with the induction ranges staffing 5 or more employees was 62.4%, which clearly showed that they were larger than the average restaurants(2.8 employees). The result of hypothesis testing by regression analysis showed that the restaurant's eco - friendly functional induction servicescape had a significant effect on user satisfaction, and ② the eco - friendly functional induction servicescape of the restaurant had a significant influence on repurchase intention. ③ The operation of the restaurant with the induction of the eco - friendly function of the restaurant. The satisfaction of the manager has a significant influence on the repurchase intention. Therefor, the hypothesis suggested in this study was adopted.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.10 no.3
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• pp.27-38
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• 2015

Recently, Corporate Social Responsibility(CSR) is essential firm activity to establish favorable firm true and sustainability management. However, there has been a controversy over the relationship between CSR and financial performance, also, it has been a little research that investigate relationship between CSR, firm reputation in firm level and firm true, firm loyalty in financial institution. This paper investigate empirically relationship between CSR activities, firm reputation and firm loyalty, moderating effect of firm true on the relationship between CSR activities, firm reputation and firm loyalty. Results were computed using SPSS 20.0 statistical analysis programs. The results are summarized as follows. First, The elements of CSR activities are divided into four factor, such as economic, ethical, consumer protection and environmental responsibilities. In the results of the analyses, consumer protection responsibility, economic reliability and business management skill positive affects the reliability of firm. Second, testing its mediating role, I use the three regression equation models by Baron and Kenny. When the mediator effect of firm true on firm loyalty was represented, the effect of CSR and firm reputation was statistically significant or diminished. Thus, the mediating role of firm true was supported. It means the higher the CSR and corporation reputation activities are, the higher the firm true is, further the higher level of firm true can enhance firm loyalty.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.8 no.1
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• pp.29-36
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• 2013

So many researchers have been interested in key success factors of technological start-ups. However, previous studies have not focussed on Concreteness of technological capabilities at the growth stages and industry in technological start-ups. The purpose of this study is to investigate the Concreteness of technological capabilities that have influence on performance of technological start-ups. Empirical data was collected from 342 firms in BI in Korea. It used the questionnaire method for the CEO, It is executed the Regression analysis to test hypotheses of influencing effects. Results of the hypothesis testing are summarized as follows: First, It was found that technological capabilities had statistically significant influence on firm performance. But the property based resources had lower significant influence. Second, This research found that the knowledge based resources had higher significant influence on technological start-ups performance at IT industry. Third, The knowledge based resources had higher significant influence on performance at growth stages. In conclusion, technological capabilities were verified as important firm resources of technology-based start-ups for firm performance. But the Concreteness of technological capabilities was significant differences by growth-stage of firms.