• Annual preventive maintenance scheduling for thermal units in an electric power system

    Annual preventive maintenance scheduling for thermal units in an electric power system

    The system approach to the problem of preventive maintenance scheduling for thermal units in a large scale electric power system is considered in this paper. The maintenance scheduling program determines a set of thermal units maintenance switch off for a time period of one year. This paper considers the application of dynamic programming and successive approximations method in determination of annual thermal unit maintenance schedules.

     13 p dnulib 28/08/2020 44 1

  • Online blind separation of non stationary signals

    Online blind separation of non stationary signals

    This paper addresses the problem of blind separation of non stationary signals. We introduce an online separating algorithm for estimation of independent source signals using the assumption of non-stationarity of sources. As a separating model, we apply a self-organizing neural network with lateral connections, and define a contrast function based on correlation of the network outputs. A separating algorithm for adaptation of the network...

     17 p dnulib 28/08/2020 69 1

  • An implementation of ray tracing algorithm for the multiprocessor machines

    An implementation of ray tracing algorithm for the multiprocessor machines

    Ray Tracing is an algorithm for generating photo-realistic pictures of the 3D scenes, given scene description, lighting condition and viewing parameters as inputs. The algorithm is inherently convenient for parallelization and the simplest parallelization scheme is for the shared-memory parallel machines (multiprocessors). This paper presents two implementations of the algorithm developed by the authors for alike machines, one using the POSIX...

     11 p dnulib 28/08/2020 65 1

  • A two-phase linear programming approach for redundancy allocation problems

    A two-phase linear programming approach for redundancy allocation problems

    Provision of redundant components in parallel is an efficient way to increase the system reliability, however, the weight, volume and cost of the system will increase simultaneously. This paper proposes a new two-phase linear programming approach for solving the nonlinear redundancy allocation problems subject to multiple linear constraints.

     10 p dnulib 28/08/2020 49 1

  • Bibliometric Analysis and Research Management (Phân tích cơ sở dữ liệu khoa học và quản lý nghiên cứu)

    Bibliometric Analysis and Research Management (Phân tích cơ sở dữ liệu khoa học và quản lý nghiên cứu)

    Bài báo này cung cấp và thảo luận một số ví dụ của phân tích cơ sở dữ liệu khoa học, trong đó tập trung vào các hướng nghiên cứu ưu tiên; đồng thời giới thiệu 100 hướng nghiên cứu đang được nghiên cứu mạnh mẽ nhất trong các lĩnh vực khoa học tự nhiên và khoa học xã hội trên thế giới và so sánh tình hình nghiên cứu của trên các lĩnh vực...

     13 p dnulib 29/02/2020 107 1

  • Evaluation use and influence – a review of related literature

    Evaluation use and influence – a review of related literature

    This paper reviews research on the use of evaluation and evaluation influence. The literature review located 36 publications that met minimum standards. It examines different definitions of evaluation use and influence provided by different evaluation researchers and theorists and offers a taxonomy of use and influence.

     9 p dnulib 31/10/2019 45 1

  • Factors affecting tourist destination choice: A survey of international travelers to Hanoi, Vietnam

    Factors affecting tourist destination choice: A survey of international travelers to Hanoi, Vietnam

    Factors affecting tourist destination choice: A survey of international travelers to Hanoi, Vietnam. This paper carried out a survey of international tourists who selected Hanoi - Vietnam as their holiday destination and our findings show that brand image and brand loyalty play an important role on tourist’s decision of returning or recommendation to others while brand awareness and quality have no impact.

     16 p dnulib 31/10/2019 150 1

  • Measuring service quality in the hotel industry using the adapted servqual a case study of business hotels in Chiayi and Tainan cities

    Measuring service quality in the hotel industry using the adapted servqual a case study of business hotels in Chiayi and Tainan cities

    The objectives of this study: to prove that the adapted SERVQUAL model can be applied to measure the service quality, compare guests‟ expectation and perceptions on service quality of business hotels and indicate the priority service quality dimension based on the business hotels guest‟s expectations and perceptions. The study‟s output can be used by the hotel managers as a guideline to improve service quality of the hotel.

     10 p dnulib 30/09/2019 141 1

  • Measuring impacts of international tourism development on economic development: the case of ASEAN countries

    Measuring impacts of international tourism development on economic development: the case of ASEAN countries

    The relationship between tourism development and economic development has been long determined and measured. This paper primarily aims to measure this relationship in ASEAN countries in the 2001- 2009 period. The result indicates that tourism development has a positive effect on economic development, specifically increasing per capita income.

     10 p dnulib 30/09/2019 145 1

  • Sustainable development of Central Coast tourism based on value chain approach

    Sustainable development of Central Coast tourism based on value chain approach

    This paper proposes some solutions to sustainable tourism development in the Central Coastal region by developing a single destination and making the best use of creative and supporting resources besides local natural ones.

     14 p dnulib 30/09/2019 134 1

  • A decade-long development of Vietnam tourism: Achievements, limits and solutions

    A decade-long development of Vietnam tourism: Achievements, limits and solutions

    In the past decade, Vietnam’s tourism has accomplished many an important achievement, that is, the number of foreign tourists has reached over five million, tourist receipts contribute about 6% of GDP, and many Vietnam’s natural sights have been recognized and placed in the top ten of attractive places in the world. Yet, Vietnam’s tourism is facing a great deal of challenges hindering its development. Thus, this paper is to investigate...

     6 p dnulib 30/09/2019 94 1

  • Factors affecting the satisfaction of visitors to Đà Lạt Flower Festival 2012

    Factors affecting the satisfaction of visitors to Đà Lạt Flower Festival 2012

    The research aims to investigate factors affecting the satisfaction of visitors to a national festival, i.e. the Đà Lạt Flower Festival 2012, on the basis of 500 respondents visiting the festival. The SERVQUAL by Parasuraman et al. (1988) with some adjustments is used.

     13 p dnulib 30/09/2019 139 1

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