• Journal of Korean Society for Quality Management
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• v.43 no.4
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• pp.559-572
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• 2015

Purpose: Many firms have implemented Six Sigma in order to improve employee's creativity and performance. However, few researchers have studied the effect of Six Sigma on performance through creativity process. This study aims to investigate the impact of Six Sigma, exploitation, and exploration on performance. Methods: Based on literature review, this paper develops hypotheses and tests them by employing a structural equations model. Using survey data of 209 Six Sigma experts who have conducted Six Sigma projects from different companies, this study empirically shows that the activities for Six Sigma enhance exploitation, exploration, and performance. Results: Six Sigma affects exploration and exploitation, each of which in turn enhances performance. It is noted that Six Sigma has an indirect influence on performance through exploitation and exploration. Conclusion: Apart from Parast(2011) who insists that Six Sigma is effective in improving exploitation rather than exploration, this study suggest that Six Sigma can affect both in order to enhance corporate performance.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.1
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• pp.41-51
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• 2019

This study examined the relationship between dynamic capabilities and innovation performance and the mediating effect of exploration/exploitation operational capabilities as well as the moderating effect of exploration/exploitation IT capabilities. The results are as follows: seizing capability and reconfiguration capability had positive effects on incremental and radical innovation performance. Exploration and exploitation operational capability had positive effects on incremental innovation performance. Furthermore, exploration operation capability had a positive effect on radical innovation performance. 'Exploration operational capability-exploration IT capability' had moderating effects on 'exploration operational capability-exploitation IT capability', and 'exploitation operational capability-exploitation IT capability' on incremental innovation performance. Lastly, 'exploration operational capability-exploration IT capability' had a significant mediating effect on radical innovation performance. This study is the first empirical research that divides the effects of dynamic capabilities into direct and indirect effects, and the operational/IT capabilities into exploration and exploitation.. Dynamic and operational capabilities play a complementary role in adapting and evolving companies.

• Geomechanics and Engineering
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• v.11 no.2
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• pp.269-288
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• 2016

The jointed rock mass behavior often plays a major role in the design of underground excavation, and their failures during excavation and in operation, are usually closely related to joints. This research attempts to evaluate the effects of two basic geometric factors influencing tunnel behavior in a jointed rock mass; joints spacing and joints orientation. A hybridized indirect boundary element code known as TFSDDM (Two-dimensional Fictitious Stress Displacement Discontinuity Method) is used to study the stress distribution around the tunnels excavated in jointed rock masses. This numerical analysis revealed that both the dip angle and spacing of joints have important influences on stress distribution on tunnel walls. For example the tensile and compressive tangential stresses at the boundary of the circular tunnel increase by reduction in the joint spacing, and by increase the dip joint angle the tensile stress in the tunnel roof decreases.

• Journal of Environmental Science International
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• v.8 no.1
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• pp.95-100
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• 1999

Process intensification without any increase in bed requires the exploitation of fluid mechanical phenomena as the basis for elegant solutions to the process engineering problems which result from the need to retain and control the immobilized biomass, and for biomass recovery. The fluidized bed biological reactor provides a solution to these needs. The wastewater treatment characteristics of the fluidized bed was filled with sand media. Indirect aeration were studied experimentally. The researcher was filled with sand particle size(0.60~0.42mm) in three reactors with different section area(A)/height(H), in the state BOD loading 4.5kg-$BOD_5/m^3$ㆍd, and under the fixed state of hydraulic retention time for around 32 minutes.

• The Southeast Asian review
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• v.22 no.2
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• pp.1-41
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• 2012

The peasant societies of East Asia had been challenged by capitalist plantation since colonization and by socialist collectivization since decolonization. The former was decisively weakened due to the crisis of the capitalist system in the 1930s and the collapse of the colonial order in the 1940s; The latter was thoroughly discredited due to the reform of the socialist system in the 1980s and the end of the Cold War in the 1990s. The failure of the two epochal challenges demonstrates the historical sustainability of peasant societies in East Asia. Their survival represents the universality of Northeast and Southeast Asia, which can be ascribed to the ecological environment and production process of wet-rice agriculture for their common staple food. In spite of their diverse differences, indeed, peasant societies in colonial East Asia shared profound similarities in their basic motivations (morality-rationality), central tendencies (involution - polarization), structural outcomes (dualism - pluralism), and future prospects (survival-extinction).

• The Journal of Asian Finance, Economics and Business
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• v.9 no.5
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• pp.87-98
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• 2022

Purpose: The is study aimed to examine the impact of consumer ethnocentrism on reasoned action and brand equity on Generation Z in Vietnam. Research design, data and methodology: A quantitative study was undertaken on 302 Generation Z members. The data for the study was collected using a Google Form-based questionnaire from December 2021 to January 2022. Descriptive statistics, Cronbach's alpha, and structural equation modeling were among the data analysis techniques employed. The results: The results show that consumer ethnocentrism has a direct positive impact on reasoned action (subjective norms and attitude toward domestic goods) as well as an indirect positive impact on brand equity, including brand awareness, brand quality, and brand image. Major findings: According to the findings of this study, governments should continue to push propaganda and advocacy programs, call for national pride and encourage home consumers to support and use domestic goods. Domestic brands must strengthen their ties to the community and invest in community-oriented programs that promote domestic consumption. Vietnam's domestic fashion brands need to promote the exploitation of community-oriented and nationalistic content to call on domestic consumers to support them to consume domestic brands.

• Structural Engineering and Mechanics
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• v.86 no.5
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• pp.607-619
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• 2023

This study, it was tried to evaluate the asphalt behavior under tensile loading conditions through indirect Brazilian and direct tensile tests, experimentally and numerically. This paper is important from two points of view. The first one, a new test method was developed for the determination of the direct tensile strength of asphalt and its difference was obtained from the indirect test method. The second one, the effects of particle size and loading rate have been cleared on the tensile fracture mechanism. The experimental direct tensile strength of the asphalt specimens was measured in the laboratory using the compression-to-tensile load converting (CTLC) device. Some special types of asphalt specimens were prepared in the form of slabs with a central hole. The CTLC device is then equipped with this specimen and placed in the universal testing machine. Then, the direct tensile strength of asphalt specimens with different sizes of ingredients can be measured at different loading rates in the laboratory. The particle flow code (PFC) was used to numerically simulate the direct tensile strength test of asphalt samples. This numerical modeling technique is based on the versatile discrete element method (DEM). Three different particle diameters were chosen and were tested under three different loading rates. The results show that when the loading rate was 0.016 mm/sec, two tensile cracks were initiated from the left and right of the hole and propagated perpendicular to the loading axis till coalescence to the model boundary. When the loading rate was 0.032 mm/sec, two tensile cracks were initiated from the left and right of the hole and propagated perpendicular to the loading axis. The branching occurs in these cracks. This shows that the crack propagation is under quasi-static conditions. When the loading rate was 0.064 mm/sec, mixed tensile and shear cracks were initiated below the loading walls and branching occurred in these cracks. This shows that the crack propagation is under dynamic conditions. The loading rate increases and the tensile strength increases. Because all defects mobilized under a low loading rate and this led to decreasing the tensile strength. The experimental results for the direct tensile strengths of asphalt specimens of different ingredients were in good accordance with their corresponding results approximated by DEM software.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.11 no.1
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• pp.13-27
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• 2016

Companies strive to have the ability to flexibly respond to environmental changes in modern society with its rapidly changing business environment. That is, companies try to achieve the corporate performance by using a variety of strategies since companies that don't go along with changes in industry are likely to fall behind. Also, the corporate performance is a key element in national competitiveness, and government is willing to support companies to maximize their performance in various ways. This study examines whether there is a difference between corporate strategies and government policies according to the retention and the type of certification of innovation. The company's strategy configuration effort is largely divided into exploration and exploitation of external knowledge, while the government's policy is divided into direct support, indirect support, and financial support. The corporate performance is analyzed using technological performance; innovative perspective and the sales; and the actual corporate performance as proxy variables. As a result, the variable affecting the performance differs according to the retention of certification of innovation. The variable affecting the corporate performance differs according to the type of certification of innovation as well. Therefore, it was found that companies can achieve the corporate performance by considering the situation at hand and the differentiated action strategies depending on the type of certification of innovation.

• Korean Journal of Agricultural Science
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• v.14 no.2
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• pp.384-395
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• 1987

This paper aims to identify the class characteristics of tenants. To this end Patnaik's model is selected, because this model is most reasonable for sorting class structures of tenants. In his Model, "labor-exploitation criterion" is the main criterion for identifying class status. According to this criterion, there are five rural classes i.e. landlord, rich peasant, middle peasant, poor peasant, and full-time laborer. "Net labor ratio" is used for this purpose as empirical data handling. Net labor ratio is a ratio of net labor hired in to family labor, if hired in labor is more then this ratio is positive, and if hired out labor is more then the ratio is negative. Hired in and hired out labor includes not only direct labor but indirect labor such as labor employment or sales through rent. The results of this study are summarized as First, almost all tenants and owner cultivators are of the middle peasant class. Second, there are no rich peasant among the tenants, but 5% of owner cultivators are rich peasants, and 10% of tenants are poor peasants, owner cultivators are 1%. Third, the net: labor ratio of tenants is -0.211, and that of owners is 0.143. There are differences between tenants and owner cultivators even if land is much the same, and owner cultivators net labor ratio is positive except in the land size of 0.3-0.5ha, but that of the tenants' is negative. Fourth, proto-labor poor peasants earned 25% of income from labor, compared with under 10% of proto-tenant poor passant's. Rent to income ratio is almost 60% of proto-tenant, 27% of proto-labor among poor peasants.

• Economic and Environmental Geology
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• v.47 no.3
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• pp.255-263
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• 2014

Conflict minerals refer to minerals mined in conditions of armed conflict, especially as in the eastern provinces of the Democratic Republic of the Congo. The common conflict minerals are cassiterite, wolframite, coltan(columbite-tantalite ore), and gold, which are mined and extracted from the Eastern Congo. These minerals are essentially used in the manufacture of a variety of devices, including consumer electronics. To end the violent conflict in the Democratic Republic of the Congo (DRC) and in surrounding countries, it is necessary to block the supply route of conflict minerals which has been partially financed by the exploitation and trade of conflict minerals. The Dodd-Frank Wall Street Reform and Consumer Protection Act, passed into law in July 2010 and it contains requirements that U.S. companies report to the Securities and Exchange Commission(SEC) on the origin of conflict minerals and show due diligence of OECD. The goal of the act is to cut direct and indirect funding of armed groups engaged in conflict.