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Using Tensor Voting for Detecting Noise Regions in Text Images
Toan Nguyen Dinh,Jonghyun Park,GueeSang Lee 한국멀티미디어학회 2009 한국멀티미디어학회 학술발표논문집 Vol.2009 No.1
Many kinds of noises may present in natural text images such as streaks, shadows, cracks and even small objects which produce occluded text. To achieve good binarized text results, we need to detect and remove noise regions. The 3D tensor voting framework generates the surface saliency map in which the pixel saliency value is directly proportional to the region area in which this pixel belongs to. Since the noise regions are usually smaller than background and text regions, we use 3D tensor voting to detect them. The experimental results show that we can successfully detect several kinds of noises in natural text images.
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Toan Khanh Pham TRAN 한국유통과학회 2021 The Journal of Asian Finance, Economics and Busine Vol.8 No.8
The emerging competitive environment in today’s global marketplace is one where businesses no longer compete with each other as autonomous, individual firms. Global, economic, and technological development pressure forces organizations to continually enhance their performance through knowledge sharing and innovativeness. The purpose of this paper is to explore the moderating role of knowledge sharing and the mediating role of innovativeness in the relationship between transformational leadership and organizational performance. The data was collected from 389 employees in Vietnamese industrial enterprises through a questionnaire survey. The information was then analyzed by explanatory factor analysis (EFA) confirmatory factor analysis (CFA) as well as structural equation modeling (SEM). The results show that the mediating role of innovativeness and the moderating role of knowledge sharing in the relationship between transformational leadership and performance, are supported. Organizations may reap the benefits of an innovative workforce by selecting, nurturing transformational leaders. This study contributes to the field of human resources management, particularly leadership, by exploring the role of transformational leadership. Moreover, this is the first study to test the moderating role of knowledge sharing and the mediating role of innovativeness in the relationship between transformational leadership and the organizational performance.
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Toan Khanh Pham TRAN,Truc Trung TRUONG 한국유통과학회 2021 The Journal of Asian Finance, Economics and Busine Vol.8 No.4
Servant leadership has been noticeable in the last decade in the leadership literature on account its focus on serving others first. The target of servant leadership is not the organization, but rather the followers and their development and also the ability to motivate others to become servant leaders. Serving leadership has been recognized as a leadership philosophy that addresses ethical concerns, which is linked to ethical leadership. This study aims to investigate the relationship between dimensions of servant leadership and public service motivation of civil servants. Data were collected from civil servants working in public organizations at district level in Ho Chi Minh City of Vietnam through survey forms. The research hypotheses are tested by factor analysis and regression. The results report that 7 dimensions of servant leadership positively affect public service motivation in the following ascending order: Empowerment, standing back, forgiveness, humility, integrity, accountability, and courage. On the other hand stewardship has an insignificant impact on the role of leading and supervising. Our study contributes to the existing literature on servant leadership as well as public service motivation by throwing light onto a so-far neglected transitional country like Vietnam. Thereby, this study proposes a number of implications for the leaders to improve leadership style to enhance public service motivation of civil servants.
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Toan Van Pham,Vinh Mai Phuoc,Dung Van Nguyen,Jiro Koyama 대한환경공학회 2021 Environmental Engineering Research Vol.26 No.6
Pesticide containing wastewater is concerned due to their toxicity to human health and the environment, and therefore, is attracted much attention by public communities and scientists. This type of wastewater can be treated by conventional treatment methods including physical, chemical, biological methods and so on. Unfortunately, the efficiency of these methods are mostly undesired as expectation because they cannot completely remove toxic organic pollutants from wastewater. In this study, an experiment on laboratory scale model of cold plasma technology, a well-known water treatment method in recent decades, was performed to assess its efficiency on removing pesticide fenobucarb from the wastewater. Furthermore, another experiment on laboratory scale model of the cold plasma combined with coagulation/flocculation and ion exchange process was implemented to assess the efficiency of these combination and each process as well on treatment of pesticide containing wastewater. Experimental results demonstrated that the model of technologies combined was high effective in removing organic pollutants from wastewater. However, the specific efficiency of cold plasma technology in treating wastewater was low. Treatment time, energy supply and wastewater characteristics are the factors which are necessary to be further studied for cold plasma technology application.
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Toan Van Pham,Vinh Mai Phuoc,Dung Van Nguyen,Jiro Koyama 대한환경공학회 2021 Environmental Engineering Research Vol.26 No.6
Pesticide containing wastewater is concerned due to their toxicity to human health and the environment, and therefore, is attracted much attention by public communities and scientists. This type of wastewater can be treated by conventional treatment methods including physical, chemical, biological methods and so on. Unfortunately, the efficiency of these methods are mostly undesired as expectation because they cannot completely remove toxic organic pollutants from wastewater. In this study, an experiment on laboratory scale model of cold plasma technology, a well-known water treatment method in recent decades, was performed to assess its efficiency on removing pesticide fenobucarb from the wastewater. Furthermore, another experiment on laboratory scale model of the cold plasma combined with coagulation/flocculation and ion exchange process was implemented to assess the efficiency of these combination and each process as well on treatment of pesticide containing wastewater. Experimental results demonstrated that the model of technologies combined was high effective in removing organic pollutants from wastewater. However, the specific efficiency of cold plasma technology in treating wastewater was low. Treatment time, energy supply and wastewater characteristics are the factors which are necessary to be further studied for cold plasma technology application.
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Augmented Reality for architectural education and fire prevention of traditional Korean buildings
○Toan Phan Viet,Choo Seung Yeon 대한건축학회지회연합회 2008 대한건축학회지회연합회 학술발표대회논문집 Vol.2008 No.1
This article shows an application of Augmented Reality for Korean Cultural Traditional Building. In this case, the Namdaemun Gate; the "National Treasure No.1"of South Korea, was reviewed. We know that, on 10 February 2008, the Namdaemun Gate was burned down under thefire and collapsed although many fireman forces arrived on time. The main reason for the fail of the fire prevention is the difficulty of getting fire under control without knowledge about the basic structure of wooden frameworks. Therefore, along with great progress of digital technology, an applying science of virtual information to architectural heritage buildings is needed. The new technology, Augmented Reality (AR), comes out and brings with itself many advantages for digital architectural design and construction fields. The AR is being considered the new method of design to approach architecture. With the AR environment, the 3D graphic model of Namdaemun Gate can be integrated into real world, and users can interact to it, namely the firemen can gain knowledge of wooden frameworks structure and be trained for emergency case. The main focus of this research is to give educational information on the traditional wooden structure on- and off-site for architectural students, archaeological profession, etc., especially the fireman, using this new technology. In this article, some experiments are shown out to illustrate how the AR system can assist fireman to get knowledge for prevention of fire on wooden traditional buildings.
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Toan Khac Nguyen,임진희 한국원예학회 2019 Horticulture, Environment, and Biotechnology Vol.60 No.5
Chrysanthemum, which belongs to the Asteraceae family, is a fl oriculture crop with ornamental, industrial, and medicinalvalue. Chrysanthemum breeding programs have generated genetic linkage maps and identifi ed molecular markers for importanttraits. Chrysanthemum species have a complex genetic background, and several studies on Chrysanthemum specieshave been published in the last 3 decades. The Chrysanthemum genome was published by Amway Botanical R&D Center,China (online since 2017/12/07); however, the molecular breeding of Asteraceae is not well studied yet. Next-generationsequencing (NGS) technologies, genotyping-by-sequencing (GBS), and association mapping have facilitated the identifi cationof novel genetic markers. Chrysanthemum species have a very large genome and include diploid and polyploid species(such as allohexaploids) with complex hereditary features such as self-incompatibility systems and inbreeding depression. The development of NGS technologies allowed the advance of high-throughput DNA sequencing for detecting and singlenucleotide polymorphisms (SNP) in various plant species. Through NGS, a large number of SNPs detected via whole-genomesequencing can be used as markers in breeding and genetic studies. While SNP markers allow rapid analyses, contribute tothe low cost of genome-wide scans, and are sequenced by numerous effi cient platforms in diverse genetic backgrounds, GBScan be advantageous for the study of gene function, genetic variation, and heredity, specifi cally in modern plant breeding. In addition, GBS can reduce genome complexity, allowing SNP discovery and genotyping of sequences without a referencegenome. This review focuses on the tools used for genomic research and breeding in Chrysanthemum, and discusses theprocesses in SNP development and study of the evolutionary processes in Chrysanthemum species.
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