461 research outputs found

    ON THE GENERALIZED CONVOLUTION WITH A WEIGHT-FUNCTION FOR THE FOURIER AND COSINE-FOURIER INTEGRAL TRANSFORMS

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    Joint Research on Environmental Science and Technology for the Eart

    A Generalized Convolution with a Weight Function for the Fourier Cosine and Sine Transforms

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    A generalized convolution with a weight function for the Fourier cosine and sine transforms is introduced. Its properties and applications to solving a system of integral equations are considered

    Convolution for the transform induced by Fourier integral transform and its inverse

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    Joint Research on Environmental Science and Technology for the Eart

    Red-emitting Ba2Si5N8Eu2+ conversion phosphor: A new selection for enhancing the optical performance of the in-cup packaging MCW-LEDs

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    In this research, the influence of the red-emitting Ba2Si5N8Eu2+ convention phosphor on the optical performance of the 7,000K and 7,700K in-cup packaging multi-chip white LEDs (MCW-LEDs) is investigated. The effect of the red-emitting Ba2Si5N8Eu2+ convention phosphor is demonstrated based on Mie Theory by Mat Lab and Light Tools software. The research results indicated that the optical performance of MCW-LEDs was crucially affected by the red-emitting Ba2Si5N8Eu2+ phosphor's concentration. This paper provides an essential recommendation for selecting and developing the phosphor materials for MW-LEDs manufacturing.Web of Science51art. no. 148615

    Financial Sector Reforms in Vietnam: Selected Issues and Problems

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    The purpose of this report is to concentrate on performing in-depth analyses of selected issues of prominence and importance for the future success of the reform process rather than describing the current day-to-day operations and procedures in the financial sector. This eclectic approach implies that other important issues such as the development of a payment system, the state and prospects for the inter-bank markets, and the human capital and organisational issues in the state-owned banks are neglected and/or not analysed in depth. They are, however, omissions due to constraints imposed by funds and time available rather than a failure to comprehend their importance. In this context, the present report should thus be viewed as a first step towards establishing an open dialogue about the nature and speed of the financial sector reforms in Vietnam based on recurrent independent assessments of financial sector issues and problems.Financial Sector Reforms, Vietnam

    The impact of the COVID-19 pandemic on the stressful relationship between parents and children

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    The stressful relationship between children and parents is the pain both go through when they find themselves unable to cope as a parent or a child. In order to find out the status, causes, and impacts of the COVID-19 pandemic and suggest some solutions to reduce stress between parents and children, we surveyed the impact of the COVID-19 pandemic on stressful relationships between parents and children at high school age in Da Nang city. The findings of a survey conducted on 550 randomly selected parents and 550 high school students using the Perceived Stress Scale reveal a high rate of tension between parents and their children, particularly up to 51.1% and 38.5%, respectively. In reality, many factors are affecting the stressful relationship between parents and their children at this age, in which psychological fear about health; social distancing policy; closed schools; students staying at home 24 hours a day and learning online; the disruption in children's daily routine; excessive use of electronic devices are major causes of stress in the relationship between parents and their children. From this practice, our research team has proposed such solutions as participating in creative activities and consulting the handbook instructing parents' behaviour rules toward children and vice versa, designing extra-curricular activities, and organizing training courses on life values for both parents and children to increase happiness and reduce stress in the parent-child relationship

    Tourism destinations information seeking and dissemination behaviors on social networking sites

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    Social networking sites (SNS) are a modern form of communication used by the young people across the world. Many young people discuss on forums and exchange information, opinions on SNS. This study empirically examines the effects of consumer opinion leadership (COL) and consumer susceptibility to interpersonal influence (CSII) on young people’s tourism destinations information seeking and dissemination behavior on SNS from consumers’ point of view. The study aimed to answer the following questions: Does COL and CSII affect young people’s tourism destinations information seeking and dissemination behavior on SNS? Is there gender difference in young people’s tourism destinations information seeking and dissemination behavior on SNS? The data generated from various instruments were organized into emerging themes to validate the findings. The results indicated COL and CSII only affected tourism destinations information seeking and dissemination behaviors on SNS of young people. Gender was not supported by the research. These findings suggest that, marketing activities and tactics should be engaged to attract opinion leaders

    Factors Affecting Young Consumers’ Intention to Purchase Upcycled Fashion Products – A Case Study in Vietnam

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    In this study, the author has given different basis to build hypothesis and research models to find out the factors affecting the Vietnamese young consumer's intention to purchase upcycled fashion products. Firstly, this paper focuses on studying the relationship between attitudes and purchase intentions. Secondly, the author studies the effects of factors on attitudes and purchase intentions. The main research subjects are factors affecting Vietnamese young consumer' intention to to purchase upcycled fashion products. Hence, this research was conducted based on survey results among 400 young people aged 18 to 34 in Hanoi and Ho Chi Minh city which are two big city in Vietnam. The authors used two statistical software, SPSS 26.0 and AMOS 20.0, to analyze the survey results. These tools help the authors analyze Cronbach's Alpha reliability coefficients, exploratory factor analysis (EFA), confirmatory factor analysis (CFA), structural equation model (SEM). The results show that there was a positive relationship between young consumers' attitudes and purchase intention in the Vietnamese context. Attitude mediates the relationship between the influencing factors and purchase intention. Moreover, the study test the impact of five main factors including environmental concern, social value, uniqueness value, perception financial risk, and perceive quality risk. The environmental concern (β = 0.337) is considered as the strongest effect on consumers' attitudes towards products. The factors such as uniqueness value (β = 0.302) as well as social value (β = 0.216) also positively affect consumers' attitudes. On the other hand, perception financial risk (β = -0.168), and perceive quality risk (β = -0.280) negatively affect consumers' attitude
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