• The Journal of Asian Finance, Economics and Business
• /
• v.7 no.7
• /
• pp.369-378
• /
• 2020

The paper aims to identify the determinants that influence entrepreneurial intention among National Economics University graduates. For the sample size, we conducted a questionnaire survey of 250 full-time third-year undergraduates at the National Economics University, with convenience sampling technique. Of those 250 undergraduates, 150 were Business Administration students and 100 Economy Management students. After eliminating invalid responses due to lack of information or low quality information, 215 responses were used (93.07% of respondents) for data analysis. The results show that the factor "Perceived desirability" has the strongest impact on the intention to start a business. It is followed by the factor "Perceived feasibility" in which the "ability to search and plan for start-up" has a stronger influence on undergraduates' entrepreneurial intention than the "leadership and ability to overcome adversity". The hypothesis of a positive relationship between undergraduates' propensity to act and their intention to start a business is also supported in this study. Based on the results, we suggest some recommendations for the university and State management agencies to nurture and develop entrepreneurial intention of undergraduates, forming the young generation of potential entrepreneurs to contribute to the development of emerging countries such as Vietnam, the case study.

• Journal of Korean Society of Rural Planning
• /
• v.26 no.1
• /
• pp.13-22
• /
• 2020

This study analyzed the relationship between the sense of community, organizational commitment, and business performance among farmers participating in the agricultural products processing center. As a result, the farmer's sense of community at the agricultural products processing center had a positive effect on organizational commitment, and the farmer's sense of community had a positive effect on business performance. In this regard, efforts should be made to systematically manage and sustain the future of formal, formal and informal activities of the agricultural products processing center. In addition, in order for the community formed at the agricultural products processing center to continue to grow, it is necessary to take the approach of improving the competence of personnel, organizing work, developing professional programs, and forming related networks. In addition, the organization formed through the agricultural products processing center should be grown as a farmer's organization of processing base so that it can be linked with the activation policy such as food plan and local food.

• Korean Journal of Organic Agriculture
• /
• v.9 no.3
• /
• pp.45-71
• /
• 2001

The duck-rice forming system is increasingly spread up throughout Korea since 1992. It is discussed the rice field, rice quality, weed and pest management in the duck-rice weeding system compared to conventional farming system. Moreover the optimizing duck population, system management and fertilizer application rate were reported. Energy input and output by duck-rice farming system were carefully compared with those of low input sustainable paddy field and conventional farming paddy field. To find out the environmentally sound function of duck-rice system, the total nitrogen in paddy soil and paddy water, and nitrogen cycle in paddy rice cultivation system were analysed. finally the input and output were calculated, and ecological characteristic were determined in terms of nitrogen balance, labor input, animal input, renewable energy input, turnover of soil organic matter, energy loss, non-renewable indirect and direct energy input. It was concluded duck-rice weeding system could be recommended in terms of net only environmentally sound, but also farmer's income. But there are still some research needs for successful adaption of duck-rice farming to investigate to determine the optimal population of duck in rice paddy field unit, release time of duckling, duck management after release, and strategy for duck marketing and duck processing.

• Explosives and Blasting
• /
• v.17 no.4
• /
• pp.18-31
• /
• 1999

The explosive forming has been used for many year to expand tubes into tubesheets. this process has demonstrated ability to direct carefully the energy of an explosive to expand tubes into tubesheet holes without damaging the tubesheet and without causing the excessive cold work at the tube I.D. that is normally associated with mechanical expansion. The success of explosive tube expansion provided the background for the development of the explosive tube plug. The main results are as follows : (1) The optimum explosives and explosive qualities are PETN, RDX, HMS and about 18~31gr/ft of explosive plugging in nuclear steam generator. (2) Explosive plugging's thickness is 0.9~1.8mm. If groove of 0.4 mm formed in plug outside, For the hydraulic leakage is go up, explosive plugging of formed groove are applicate tube and tubrplate. (3) Sheath is designed on the polyethylene of low density, In thermal impact test of the $430^\circ{C}$, hydraulic leakage is $300kg/cm^2$. (4) About 10~60mm oxide inclusions are existed on the space of explosive plug and tube protect to the leakage.

• Health Policy and Management
• /
• v.23 no.3
• /
• pp.281-288
• /
• 2013

Background: The purpose of this study is to grasp the factors forming hospital image and to measure evaluation of internal and external customers towards hospital choice factors. Methods: This study is based 4 types of choice factor such as physical, human, accessibility, and connection. Data were assessed using 98 patients and 96 internal employees who work at A general hospital in Seoul and 116 patients and 97 internal employees at B general hospital in Chunkcheongbuk-do. Data were collected with self-administered questionnaires from February 17 to April 29 in 2012 and analyzed SPSS ver. 18.0 by using frequency, t-test, analysis of variance, correlation, and multiple regression. Results: The results of this study show that factors affecting hospital image is significant different between internal and external customers of hospital A and B. Expecially the finding of this study will be applied to improve connection factors in administrative department of hospital for hospital image. Conclusion: This study presents primary data for correct decision making to authorities of local hospitals that have concern about marketing strategy for hospital image.

• Proceedings of the KSME Conference
• /
• 2004.04a
• /
• pp.456-461
• /
• 2004

The dynamic behavior of sheet metals must be examined to ensure the impact characteristics of auto-body by a finite element method. An appropriate experimental method has to be developed to acquire the material properties at the intermediate strain rate which is under 500/s in the crash analysis of auto-body. In this paper, tensile tests of various different steel sheets for an auto-body were performed to obtain the dynamic material properties with respect to the strain rate which is ranged from 0.003/sec to 200/sec. A high speed material testing machine was made for tension tests at the intermediate strain rate and the dimensions of specimens that can provide the reasonable results were determined by the finite element analysis. Stress-strain curves were obtained for each steel sheet from the dynamic tensile test and used to deduce the relationship of the yield stress and the elongation to the strain rate. These results are significant not only in the crashworthiness evaluation under car crash but also in the high speed metal forming.

• Design & Manufacturing
• /
• v.10 no.2
• /
• pp.29-33
• /
• 2016

Production machines have been more important, due to quality level of vehicle motor core is getting higher. That is why, to improve assembly fit of tooling and to be emphasized how much moving down caused of deterioration of high speed press, it is also getting more important parts as solution of problems. To analyze how much move based on condition of movement as tooling and high speed press, and to measure how much impact to embossing height caused of changing movement down. As the result of investigation, in case of material thickness 0.5mm, there is highest pull and force power when emboss height is 0.45mm. If emboss height is less than 0.45mm, pull and force power is getting lower, if emboss height is higher than 0.45mm, it is impossible to make it forming caused of changed press movement, also it has been piercing.

• Biotechnology and Bioprocess Engineering:BBE
• /
• v.6 no.6
• /
• pp.376-385
• /
• 2001

Considerable attention has been focused in recent years upon the field of biosorption for the removal of metal ions from aqeous effluents. Compared to other technologies, the advan-tages of biosortption are the high purity of the treated waste water and the cheap raw material. Really, the first major challenge for the biosorption field is to select the most promising types of biomass. Abundant biomass types either generated as a waste by-product of large-scale industrial fermentations particularly fungi or certain metal-binding seaweeds have gained importance in re-cent years due to their natural occurrence, low cost and, of course good performance in metal biosorption. Industrial solutions commonly contain multimetal systems or several organic and in organic substances that form complexes with metals at relatively high stability forming a very complex environment. When several components are present, interference and competition phe-nomena for sorption sites occur and lead to a more complex mathematical formulation of the process. The most optimal configuration for continuous flow-biosorption seems to the packed-bed column which gets gradually from the feed to the solution exit end. Owing to the com-petitive ion exchange taking place in the column, one or more of the metals present even at trace levels may overshot the acceptable limit in the column effluent before the breakthrough point of the trargeted metal. Occurrence of 'overshoot's and impact on havey metal removal has not been analyzed enough. New trends in biosorption are discussed in this review.

• Proceedings of the Korean Society for Technology of Plasticity Conference
• /
• 2008.05a
• /
• pp.235-237
• /
• 2008

A unified hydrocode, ExLO, in which Largrangian, ALE and Eulerian solvers are incorporated into a single framework, has recently been developed in Korea. It is based on the three dimensional explicit finite element method and written in C++. ExLO is mainly designed for the calculation of structural responses to highly transient loading conditions, such as high-speed impacts, high-speed machining, high speed forming and explosions. In this paper the numerical schemes are described. Some improvements of the material interface and advection scheme are included. Details and issues of the momentum advection scheme are provided. In this paper the modeling capability of ExLO has been described for two extreme loading events; high-speed impacts and explosions. Numerical predictions are in good agreement with the existing experimental data. Specific applications of the code are discussed in a separate paper in this journal. Eventually ExLO will be providing an optimum simulation environment to engineering problems including the fluid-structure interaction problems, since it allows regions of a problem to be modeled with Lagrangian, ALE or Eulerian schemes in a single framework.

• Journal of muscle and joint health
• /
• v.15 no.1
• /
• pp.5-23
• /
• 2008

Purpose: This study aims to conduct a systematic review of the physical, psychosocial and physiological effects of Tai Chi exercise in elderly. Method: 37 articles from Medline search of foreign journals (1966-2006) were surveyed by the key words 'Tai Chi', 'Tai-chi program' and 'Tai-chi and elderly' limiting the range to age 65 or older, choosing clinical trial and randomized controlled trial research in English articles. Four articles were excluded due to methodological study, pilot study and review. The research was analyzed according to health status of the subjects, styles and forms of Tai Chi exercises, factors for physical, psychosocial and physiological measures. Result: A short forming Yang style was commonly used in chronic diseases and health for elderly. Variable outcome measures were used in Tai Chi studies relating to balance, muscle strength, walking and mobility, flexibility and cardiorespiratory function in physical measure, quality of life, depression, self-efficacy, health status, cognition and impact questionnaire in psychosocial measure, lipids, insulin resistance and hormone in physiological measure. Conclusion: Tai Chi exercise appears to have physical and psychosocial benefits and also appears to be safe for elderly and chronic diseases. It is suggested that future studies analyze statistical part of systematic reviews through meta analysis.