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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.
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.
Toan Khac Nguyen,Jaewoong Yu,Hyung-Won Choi,인병천,임진희 한국원예학회 2018 원예과학기술지 Vol.36 No.1
Chrysanthemum is one of the most popular ornamental flowers in Korea due to its great diversity ofcolors and forms. To understand this diversity and to efficiently breed chrysanthemum varieties, agenetic diversity assessment of Korean native chrysanthemum populations using molecularmarkers is required. Genotyping-by-sequencing (GBS) is a newly developed and widely used nextgeneration sequencing (NGS) method based on the single nucleotide polymorphism (SNP) markersystem. In this study, we tested three restriction enzyme combinations (ApeKI, ApeKI/MseI, andApeKI/MspI) for GBS library construction using eight Korean native Chrysanthemum spp. accessions. Three libraries were constructed and sequenced on the Illumina NextSeq 500 platformand results were analyzed in the Stacks de novo GBS pipeline. Overall, the ApeKI/MseIcombination showed the best library quality, highest number of tags, and SNP generation potential.
Toan Khanh Pham TRAN 한국유통과학회 2021 The Journal of Asian Finance, Economics and Busine Vol.8 No.7
Job crafting refers to changes that individuals make in their work to achieve their preferences and needs. Contingent on the social exchange theory, the aim of this study is to explore the relationship between job crafting and job performance. In addition, the study examines the mediating effect of social capital in the relationship between job crafting and job performance. The data was collected from 387 employees in Vietnamese industrial enterprises through a questionnaire survey using both qualitative and quantitative methods. 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 all three dimensions of job crating positively affect job performance and that social capital plays a mediating role in that relationship. This study contributes to the field of human resources management, particularly job crafting, by examining different dimensions of job crafting that impacts job performance. Moreover, this is the first study to test the mediating role of social capital on the relationship between job crafting and job performance. These insights may help the organizational managers to encourage beneficial job crafting.
Salmonella enteritis: A Rare Cause of Adult Intussusception
Toan Pham,Domenic La Paglia,Meron Pitcher 대한대장항문학회 2017 Annals of Coloproctolgy Vol.33 No.5
Intussusception is a relatively rare condition in the adult population and is commonly secondary to a malignant process. Eight to twenty percent of cases of adult intussusception are thought to be idiopathic. In children, infection has been proven to precipitate intussusception in the absence of any other cause. We present a rare case of intussusception in a healthy adult patient secondary to salmonella infection and discuss infection as a potential explanation for a proportion of the cases of adult intussusception that are thought to be idiopathic. We recommend testing for infective causes of intussusception in adults when more common causes, such as malignancy, have been excluded.
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.