• Steel and Composite Structures
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• 제18권3호
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• pp.659-672
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• 2015

This research deals with the analytical solution of a curved beam with different shapes made of functionally graded materials (FGM's). It was assumed that modulus of elasticity is graded along the thickness direction of curved beam based on a power function. The beam was loaded under pure bending. Using the linear theory of elasticity, the general relation for radial distribution of radial and circumferential stresses of arbitrary cross section was derived. The effect of nonhomogeneity was considered on the radial distribution of circumferential stress. This behavior can be investigated for positive and negative values of nonhomogeneity index. The novelty of this study is application of the obtained results for different combination of material properties and cross sections. Achieved results indicate that employing different nonhomogeneity index and selection of various types of cross sections (rectangular, triangular or circular) can control the distribution of radial and circumferential stresses as designer want and propose new solutions by these options. Increasing the nonhomogeneity index for positive or negative values of nonhomogeneity index and for various cross sections presents different behaviors along the thickness direction. In order to validate the present research, the results of this research can be compared with previous result for reachable cross sections and non homogeneity index.

• 한국수학사학회지
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• 제21권1호
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• pp.1-16
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• 2008

중국의 산학서 산학계몽은 산학의 훌륭한 입문서로 조선 산학에 지대한 영향을 끼쳤다. 이의 편제와 내용을 본받은 조선 산학서 묵사집산법은 많은 문제와 별해를 추가하고 산학계몽에서 다루지 않은 산학의 몇 가지 주제도 보완해서 교육적 개선을 시도하였다. 그러나 묵사집산법은 정부술을 배제시킴으로써, 전통적인 방정술을 이용할 수 없었다. 또 천원술도 회피함으로써, 일반적인 승방(다항 방정식)의 표현과 풀이에도 큰 제약을 받았다.

• The Journal of Asian Finance, Economics and Business
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• 제8권11호
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• pp.79-86
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• 2021

In recent years, firm performance has been a topic that attracts many researchers. It is extremely important to identify the factors that change firm performance. In the current trend of competition and integration, foreign ownership, product market competition is found to reduce agency costs and impact firm performance. The purpose of this research is to investigate the relationship between foreign ownership, product market competition, and firm performance. Our research using a quantile regression model, through panel data of 290 companies listed on the Vietnam stock exchange (include Ho Chi Minh and Hanoi stock exchanges) from 2017 to 2019 that was collected by Thomson - Reuters DataStream has shown that foreign ownership and product market competition have a positive impact on Tobin's Q but are not statistically significant with ROA. Critically, our quantile regression results suppose foreign ownership, product market competition have a significantly larger positive impact in high-performing firms relative to low-performing firms. The results help propose solutions to planners and managers to change foreign ownership and product market competition to increase business performance. Besides, through quantile regression analysis, managers need to pay attention to the impact on foreign ownership, product market competition; there will be a difference between high-performing firms relative to low-performing firms.

• The Journal of Asian Finance, Economics and Business
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• 제8권5호
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• pp.495-503
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• 2021

Business leaders have made great efforts to increase their organizations' competitive capability, and raising employees' job performance is considered as one of the essential solutions. Thus, it is vital to properly identify factors that affect the job performance since this will be the basis for managers to propose recommendations to increase employees' job performance. The study seeks to investigate the relationships between psychological capital, job satisfaction, and job performance of employees in Vietnam, a developing country in South-East Asia. In this study, psychological capital is considered as a high-order construct. The mixed research method is used in this study. Qualitative research method is used to form the official survey questionnaire. Quantitative research method is used for investigating the relationships between concepts. Research data are collected from 848 interviewees via both face-to-face and email surveys. The findings show that psychological capital has positive relationships with job satisfaction and job performance. Job satisfaction also has a positive impact on job performance. In particular, job satisfaction shows the mediating role in the impact of employees' psychological capital on their job performance. Based on the results, the study also provides recommendations related to psychological capital and job satisfaction assisting managers to increase employees' job performance.

• 동아시아경상학회지
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• 제10권4호
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• pp.55-64
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• 2022

Purpose - Corporate reading management requires employees capable of doing their job since employee performance is crucial to the firm's profitability. The objective of this study was to evaluate the positive effects of corporate reading management on employee management. It focuses on factors increasing employee productivity and the impacts corporate management brings about on the overall productivity of any kind of company. Research design, Data, and methodology - The current authors have investigated and conducted the qualitative content analysis (QCA) to obtain the adequate textual dataset in the prior and current literature. One of the primary benefits of doing research using content analysis is that it enables the researcher to employ a combination of qualitative and quantitative research methodologies. Result - Based on the review of the prior literature, the present authors found that there are four corporate reading management solutions to improve employee performance, following those instructions - A. Increased Motivation and Productivity, B. Employee Development, C. Businesses' Objective Alignment, and D. Improved Work Environment. Conclusion - This study addressed and figured out different factors that reading corporate can apply to influence employee performance, thus increasing the company's productivity. Future research should evaluate the adverse effects businesses might face from unfavorable working environments. The research also needed to address how ethics influences employee performance.

• The Journal of Asian Finance, Economics and Business
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• 제8권8호
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• pp.93-101
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• 2021

The study aims to test the model of Yang et al. (2017) for the overall assessment of the transportation sector in the sharing economy and add some new elements on the benefits of customer loyalty from some previous studies that were not mentioned in Yang's model. This study will take examples from the two big brands of car-sharing apps in the sharing economy in Vietnam - Uber, and Grab. This research focuses on customer loyalty in the sharing economy with Uber and Grab as the transport sector in Ho Chi Minh City. Based on the survey data of 380 customers in Vietnam, the research results show that two independent factors positively impact commitment and satisfaction: social benefits and economic benefits. Simultaneously, economic benefit has a positive effect on satisfaction while trust benefit has a negative effect on commitment. Finally, commitment has a positive impact on customer loyalty in the sharing economy. As a result, companies in the sharing economy can identify which are the key factors that strongly influence customer satisfaction, commitment, trust, and loyalty to help managers to devise the appropriate solutions for promoting the strengths or overcoming limitations to contribute to perfecting and improving the quality of the company's services.

• 한류연구
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• 제1권1호
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• pp.31-36
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• 2022

Recently, as the status of South Korean popular culture has risen, the Korean Wave is gaining popularity not only in Asia but also in Europe, America, and South America, and is currently at the center of the global cultural phenomena. Among them, in particular, the cultural content industry has been developing rapidly thanks to the Korean Wave. Currently, the Korean Wave is spreading all over the world while bringing about positive effects to South Korea. In fact, until 2017, political and social issues such as 'North Korea/North Korean nuclear weapons' and 'Korean War' were considered as the images associated with South Korea, but from 2018, it has been shown that all images associated with South Korea are cultural content except for 'IT industry'. Given the economic effects that can be obtained not only from the positive associated images of South Korea per se but also from the complex action with various industries in South Korea, the craze for the Korean Wave can be viewed as affecting the overall national prestige of South Korea. For the steady vogue of the Korean Wave, thorough investigation of the Korean Wave and understanding of the expectations of consumers of the Korean Wave seem to be necessary

• 유통과학연구
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• 제21권4호
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• pp.1-10
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• 2023

Purpose: This study aims to analyze the impact of Brand Anthropomorphism and Intimacy on Brand Engagement, and at the same time analyze the regulatory effect of Brand Reputation on the relationship between Brand Anthropomorphism and Intimacy and the relationship between Intimacy and Brand Engagement in terms of distribution brand. Results: The findings show that Brand Anthropomorphism, Intimacy, and Brand Reputation are important value factors in customers' minds toward their behavior, and from there, they will contribute to creating positive emotions and interactions between consumers and brands. Research design, data, and methodology: This article used the quantitative technique utilizing PLS-SEM software to test the hypothesis with 1,060 samples. Collected data shows that consumers in Ho Chi Minh City have positive emotions and interactive and social behaviors toward smartphone brands. Conclusion: The study has demonstrated the conclusions and proposed solutions to help smartphone brands build Brand Anthropomorphism while enhancing Brand Reputation thereby achieving Intimacy, which leads to consumer Brand Engagement. In addition, this study complements the concept of Brand Anthropomorphism which is lacking in theoretical background and is the first study in Vietnam to explore the prefixes and suffixes of the concept of Brand Anthropomorphism and the regulatory role of Brand Reputation.

• 한국수소및신에너지학회논문집
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• 제23권4호
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• pp.390-396
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• 2012

In order to understand the nature of dendritic zinc growth, electrochemical zinc redox reaction on nickel plate was investigated in aqueous solutions containing different concentrations, 0.2, 0.1 and 0.02 $mol{\cdot}dm^{-3}$ (M), of zinc sulfate ($ZnSO_4$) or zinc chloride ($ZnCl_2$). Zinc ion was efficiently reduced and oxidized on nickel in the high-concentration (0.2 M) solution, whereas relatively poor efficiency was obtained from the other low-concentration solutions (0,1 and 0.02 M). Cyclic voltammetry (CV) analysis revealed that the 0.2 M electrolyte solution decomposes at more positive potentials than the 0.1 and the 0.02 M solutions. These results suggested that the concentration of electrolyte solution and anion would be an important factor that suppresses the reaction of the zinc dendrite formation. Scanning Electron Microscopy (SEM) data revealed that the shape of dendritic zinc and its growing behavior were also influenced by electrolyte concentration.

• 한국산학기술학회논문지
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• 제18권2호
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• pp.383-389
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• 2017

본 논문은 대중음악 전문 지도자 양성 필요성에 대한 논문으로 대중음악 전문 교육기관 및 실용음악교육 관련 자격증의 설립을 촉구하는 논문이다. 대중음악은 사람들에게 시선과 관심을 받고 있는 우리문화의 큰 축으로 자리 잡았으며, 장르도 점차적으로 다양화가 이루어져가고 있다. 하지만 아직까지 미디어에 등장하는 가수들은 퍼포먼스 위주의 보이, 걸 그룹들이 대부분이고 기량 면에서 다소 부족함이 있다. 필자는 이에 대한 원인을 대중음악 전문 지도자 양성체제의 결여에서 찾고 문제를 해결하기 위한 방안을 제시하고자 한다. 현재 우리나라의 대중음악은 공교육의 부재로 인해 학생들을 효과적으로 가르칠 수 있는 공공교육시스템이 미흡하다. 또한 필드 위주로 인식되는 대중음악은 학문적 필요성의 인식이 부각되지 못해서 교육에 대한 필요성까지 감소시키고 있다. 마지막으로 고등교육기관 등에서의 전문지도자 양성체제의 결여로 지도자 육성에까지 큰 문제를 안고 있어서 총체적으로 문제점들이 반복되어 순환하고 있다. 이런 문제점들에 대한 방법으로는 전문 교육기관의 확립과 자격증의 설립이 있다. 이러한 해결책의 실행은 현재 정체 단계에 머물러 있는 K-POP발전과 세계화에 더욱 지대한 영향을 미칠 것이다. 그리고 대중음악계의 안정 및 이미지 격상에도 도움을 줄 것이고, 탄탄한 대중음악 역사 형성 등 수 많은 부분에 기여해서 전반적으로 대중음악계를 성장시킬 것이다. 결과적으로 본 논문은 전문지도자 양성을 위한 기관 및 자격증의 설립을 실용음악전공자들 뿐만이 아니라 전 방위에 걸친 관련 음악 종사자들에게 영향을 주고 교육에 대한 경각심을 일깨워 줌으로써 대중음악계의 발전을 꾀하고자 한다.