• Transactions of the Korean Society of Machine Tool Engineers
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• v.10 no.2
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• pp.95-102
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• 2001

In general there are many degrees of freedom(DOFs) in industrial robots. So they have many poses of several special end-effectors positions and orientations. For that reason, industrial robots are used in a wide scope of industrial applica-tions such as welding, spray painting, deburring, and so on. In this research, an off-line continuous path planning method based on linear interpolation with parabolic blend is developed. The method safely maintains the constant orientation for base frame and end-effectors path within allowable error and minimizes the number of segments in path. This algorithm may apply to welding and painting in which the orientation is particularly significant. The simulation study of cartesian curve is carried out to show the performance of this algorithm.

• Journal of the Korean Society of Manufacturing Technology Engineers
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• v.20 no.2
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• pp.202-206
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• 2011

Works on the strength and stiffness in the structural members are carried out widely with various material and cross-sections with ever increasing safety concerns, they are presently applied in various fields including railroad trains, air crafts and automobiles. In addition to this, problem of lighting structural members became important subject by control of exhaust gas emission, fuel economy and energy efficiency. So, Light weight of member structures is necessary for the high performance and various functions. In this study, the CFRP flat and circular member was manufactured by CFRP prepreg sheet in autoclave. Carbon FRP is an anisotropy material whose mechanical properties change with its fiber orientation angle, so this study apply to the effects of the fiber orientation angle on the bending characteristics of the member. Each CFRP flat and circle are compared by strength and stiffness.

• 한국정보디스플레이학회:학술대회논문집
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• 2009.10a
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• pp.1319-1321
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• 2009

Copper phthalocyanine (CuPc) Field-effect transistors (FETs) was successfully fabricated on plastic substrates. Orientation of CuPc crystallites on substrate could be obtained via rubbing process. It was revealed that CuPc crystallites were perpendicularly aligned on PES substrates with the rubbing direction. The performance of FETs was affected by orientation of CuPc on rubbed substrates.

• Journal of Biomedical Engineering Research
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• v.32 no.2
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• pp.118-126
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• 2011

This study proposes a human body orientation tracking system by inertial and earth magnetic sensors. These sensors were fused by indirect Kalman filter. The proposed tracking system was configured and the filter was implemented. The tracking performance was evaluated with static and dynamic tests. In static test, the sensor was fixed on the floor while its static characteristics was analyzed. In dynamic test, the sensor was held and moved manually for 30 seconds. The dynamic test included x, y, z axis rotations, and elbow flection/extension motions that mimic drinking. For these dynamic motions, the tracking angle error was under $4.1^{\circ}$ on average. The proposed tracking method is expected to be useful for various human body motion analysis.

• Advances in materials Research
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• v.3 no.1
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• pp.283-295
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• 2014

In this paper, the microstructure, hardness, tensile deformation and fracture behavior of high strength alloy steel X2M is presented anddiscussed. The influence of both composition and processing on microstructure of the as-provided material and resultant influence of microstructure, as a function of orientation, on hardness, tensile properties and final fracture behavior is highlighted. The macroscopic mode and intrinsic microscopic features that result from fracture of the steel specimens machined from the two orientations, longitudinal and transverse is discussed. The intrinsic microscopic mechanisms governing quasi-static deformation and final fracture behavior of this high strength steel are outlined in light of the effects oftest specimen orientation, intrinsic microstructural effects and nature of loading.

• The Journal of the Korea Contents Association
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• v.14 no.11
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• pp.783-797
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• 2014

The purpose of this study is to analyze impact of internal marketing on job satisfaction, job commitment, organizational commitment, and customer orientation in rapidly changing health care environment. The data were collected from 635 employee of 3 hospitals using a standardized questionnaires in Busan and Gyeongnam province. The results were as follows. All internal marketing factors had a direct impact on job satisfaction, job commitment, management support, empowerment, reward systems but affected the indirect through the job satisfaction all factors of internal marketing. Based on the results of this study members of the hospital in order to improve customer orientation, job satisfaction, job commitment create a pleasant working environment, give an appropriate decision-making and compensation for work performance. Compensation for work performance and organizational development suggestions should be considered by executive support.

• Journal of Fisheries and Marine Sciences Education
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• v.25 no.1
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• pp.152-166
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• 2013

The main purpose of this study is to see the differences of the achievement goal orientation, academic burnout, and school happiness between gifted and general students, and also to explore the effects on school happiness of their achievement goal orientation and academic burnout. To resolve the above research questions, this study used questionnaire method to 256 1st grade middle school students and 84 gifted students enrolled in Daegu metropolitan city. All data were analyzed by SPSS WIN 19.0 program. The results of this study are as follows. First, mastery goal, performance-approach goal and performance-avoidance goal of the gifted students were higher than the general students'. Second, all sub-variables of academic burnout except hostility and total score of academic burnout of the gifted students were lower than the general students. On the other hand, all sub-variables of school happiness except relationship with friends and emotional stability and total score school happiness of the gifted students were higher than the general students. Third, this study revealed that the achievement goal and academic burnout explain considerable amount of students' school happiness. In other words, the disfavor and skeptical attitude of general students for the study hinder school happiness. Lastly, this study suggest that some program or consulting need to be administerd to change the affective attitude of students into positively. And also variety of counselling program or some instructions dealing with stress for gifted students since the exhaustion of gifted students affects considerably their school happiness.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.13 no.6
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• pp.167-175
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• 2018

Work commitment is being studied continuously in the field of organizational behavior, this study suggests that work commitment directly affects the creativity and productivity of organizational members. The immersive attitude toward work is increasing in importance as it not only improves individual competitiveness but also improves organizational performance. From an academic point of view, we can emphasize the differentiation of this study in terms of analyzing work commitment, which is a leading factor in the current work performance, based on individual proactiveness, perceived usefulness, and learning orientation. Identifying the factors influencing work commitment is likely to provide meaningful implications for securing current and future competitiveness. For this study, we conducted an online survey of office workers, professionals, and self-employed workers. Finally, we obtained 178 valid questionnaires. As a result of the analysis, it was confirmed that proactiveness and learning orientation had a positive effect on work commitment.

• Journal of Korea Technology Innovation Society
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• v.22 no.3
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• pp.416-445
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• 2019

This study aims at examining the relationship among entrepreneurial orientation, absorption capability, alliance capability and cooperation performance in technological cooperation between SMEs and government-funded R&D Institutes. For empirical analysis, the study conducted a survey on total 2,895 SMEs participating in the technological cooperation programs operated by government-funded R&D Institutes, and collected 332 survey responses. Data were analysed using a structural equation model. Empirical results show that entrepreneurial orientation, absorption capability, and alliance capability influenced the performance of technological cooperation. In addition, alliance capability has a significant effect on absorptive capacity. In order for the technology cooperation between SMEs and government-funded research institutes being successful, efforts are needed to secure companies' entrepreneurial orientation, absorption capability and alliance capability that has the capabilities that SMEs needs for technological cooperation.

• Journal of Korea Trade
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• v.23 no.7
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• pp.156-172
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• 2019

Purpose - Without question, globalization has presented different opportunities to entrepreneurs seeking to expand their companies in foreign markets. The aim of this study is to examine the relationship between entrepreneurial orientation, entrepreneurial activity, information internalization, and product differentiation in export oriented firms. As such, entrepreneurial activities are divided into exploitative and exploratory opportunities. These opportunities are crucial in improving firms' performance. Design/methodology - A structural questionnaire was developed using 21 factors/indicators from previous researches. The subjects of this study were recruited using convenience sampling in export SMEs in the Seoul Metropolitan Area. Data were collected through visits or e-mails from the export managers, executives, and CEOs of export SMEs in advance. 321 questionnaires were collected over a period of one month. 316 questionnaires were used in the final analysis. Findings - First, International Entrepreneurial-orientation (IE) has a positive effect on the exploration and exploitation of business opportunities. Second, the exploration and exploitation of business opportunities have a positive impact on information internalization. Third, information internalization has a significant effect on product differentiation and plays a mediating role in seeking opportunities, utilizing opportunities, and differentiating products. Originality/value - This study contributes to the development of academic discussions by explaining existing research gaps. First, there is currently a lack of research focusing precisely on the product differentiation capability of SMEs in manufacturing field in terms of IE. To bridge these gaps, we examined the entrepreneurial factors impact on product differentiation and tries to expand the discussion about the internationalization of SMEs, which were mainly focused on IT companies, and manufacturing companies. Second, there is no intuitive explanation regarding international entrepreneurial activity in terms of exploration and exploitation within existing. In this study, international entrepreneurship activities were classified in terms of exploration and exploitation.