Vietnam in the formation
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This presentation will introduce the smart urban formation process with ideas and operational models. At the same time, we will introduce a smart city rating system based on the role of urban government and the community; thus, we will find the existing and building of the development orientation. Finally, we will present a case study to applying smart city model in Hanoi capital, Vietnam in the trend of sustainable development in the future.
8p vibecca 01-10-2024 5 1 Download
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In this study, a logistic regression model is developed to forecast tropical storm (TS) genesis in the Vietnam East Sea from 2012 to 2019. The model incorporates seven potential predictors including dynamic and thermodynamic parameters at formation time retrieved from the WRF-LETKF outputs.
12p vibecca 01-10-2024 2 1 Download
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In this study, nano Fe2O3 particles were synthesized by the combustion of gel from polyvinyl acohol (PVA) and tartaric acid (TA) for the degradation of methyl blue (MB) from the aqueous solution by the photocatalytic process. Factors affecting on Fe2O3 formation such as the pH of solution, temperature of gel formation, mole ratio of TA/PVA, temperature of calcination were investigated.
5p vikwong 29-09-2024 5 1 Download
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Effect of metal precursors on polyol synthesis of palladium nanoparticles towards C-N bond formation
In the present work, palladium nanoparticles were synthesized in glycerol following the bottom-up methodology, using Pd(II) and Pd(0) precursors. The as-prepared materials were characterized by transmission electron microscopy (TEM) and powder X-ray diffraction (XRD), evidencing the formation of zerovalent palladium spheres in the nanosize ranges.
5p vikwong 29-09-2024 2 0 Download
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Synthesis and investigation of photocatalytic and CO2 photoreductive properties of Ag/TiO2 nanowires
Silver nanoparticles with the diameter of 5 – 10 nm were successfully deposited on TiO2 nanowires by a facile and low-cost photoreduction method in alkaline solution under UV irradiation. The mutual coordination between light irradiation and NH4OH reduction gives rise to the formation and decoration of the Ag nanoparticles on the surface of TiO2 nanowires.
5p vikwong 29-09-2024 3 0 Download
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In this study, SrTiO3 catalyst was prepared by sol-gel method and CuOZnO by co-precipitation for oxidative coupling of methane (OCM). The XRDresults showed a stable phase structure and high crystallinity with both samples. NH3-TPD recorded weak acid centers on SrTiO3, leading to coke formation on the impact surface. H2-TPR and O2 - TPD express the redox of CuO-ZnO, resulting in a deep oxidation product of CO2.
8p vikwong 29-09-2024 3 0 Download
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This study employs the tight-binding density functional method GFN1-xTB to investigate the structural and electronic properties of TiO2-ZnO and TiO2-ZnO composite materials modified by Li, Na, K, and Fe metals. Computational analyses reveal the formation of weak covalent bonds between the TiO2 and ZnO components within the composite system. Doping TiO2-ZnO with metals induces significant alterations in the electronic structure, particularly in terms of ionization energy and global electrophilic index.
5p vikwong 29-09-2024 1 0 Download
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Zeolite seed-based mesoporous aluminosilicate material MSU-S is normally synthesized from pure chemicals. In the study, MSU-S material was synthesized using natural resources such as rice husk, and kaolin in Vietnam. Here, a systematic investigation is conducted to find the relationship between the synthesis conditions (aging time, hydrothermal time, hydrothermal temperature, pH environment) and the formation of mesoporous structure, as well as the material properties.
6p vikwong 29-09-2024 5 0 Download
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Objectives of the study: To clarify the geochemical behavior of nickel in the weathering of ultramafic rocks and the formation of nickel laterite ores. To elucidate the formation process of nickel laterite ore types; Initial assessment on the prospect of nickel laterite ore in the North of Vietnam.
27p extraenglish 24-05-2021 14 3 Download
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The thesis focuses on the development of Vietnamese human resources in three angles: quantity, quality and structure, on the basis of comparison with the requirements of general labor market integration according to AEC commitments and comparison with the AEC member countries.
27p angicungduoc11 17-04-2021 18 4 Download
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This study aims to assess the effect of three plant growth regulators, naphthyl acetic acid (NAA), indole-3-acetic acid (IAA), and indole-3 butyric acid (IBA), on the root formation of Actinidia latifolia cuttings. At the same time, seed germination and the effect of different soil and coir mixtures on the growth of kiwifruit seedlings were tested in the nursery.
11p nguaconbaynhay10 19-02-2021 20 3 Download
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In this article, the theoretical research method (through synthesis and analysis of viewpoints in the bibliography) is employed to approach the school models with the reputation for pedagogical organization in the modern history of education until now and the indispensable requirements in formation and development of happy schools in order to propose several solutions for improving the school management effectiveness in orientations towards the development of happy schools in Vietnam at present.
8p koxih_kothogmih5 04-09-2020 35 3 Download
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Silver nanowires with one-dimensional structures have attracted much research interest due to their potential applications in several areas. It is well-known that their properties strongly depend on the size and morphology of the silver nanostructures. Therefore, in our work, silver nanostructures were prepared using a polyol process and the effects of synthesis conditions on the formation and morphology of silver nanowires were investigated.
8p abcxyz123_02 03-03-2020 15 3 Download
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The thesis aims at clarifying the content of employment and employment support for rural workers; sources of rural labor collect formation, the relationship between employment and the endogenous income of rural labor. For details of research content, please refer to the thesis.
0p gaunguyen6789 17-09-2019 12 3 Download
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The purpose of thesis: Research on the influence of climatic and environmental parameters to the formation, structure and properties of corrosion products formed on the WS surface in different climatic regions of Vietnam. Research on the mechanism of forming protective rust layer on WS and corrosion resistance of WS in tropical climate of Vietnam.
32p xacxuoc4321 09-07-2019 17 4 Download
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The effect of reaction parameters like the amount of reagents, catalyst, temperature and time of a polyol synthesis were studied through the hydroxyl and oxirane oxygen content of product. Moreover, the impact of the parameters on the correlation P/E was determined by comparing a hydroxyl group formation to an epoxide group consumption. When the hydroxylation reaction was carried out with ESO:H2O mole ratio of 1:15; in 8 wt.% H2SO4; at temperature of 70 oC and in 5 hours, the hydroxyl content of 358.51 mgKOH/g of the obtained product was achieved.
6p bautroibinhyen211 26-11-2018 36 2 Download
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This study investigates the Vietnam government and Hanoi local governing body’s efforts to improve lower secondary education after the law on Residence in 2006. The law on Residence adopted by the National Assembly of Vietnam in 2006 ensures the freedom of temporary residence and relaxes the rule for shifting to permanent registration. The enforcement of the law in 2007 made Hanoi population increase from 3,751,000 (2000) to 5,276,000 (2015) and caused a bloated lower secondary education.
7p truongtien_08 06-04-2018 53 3 Download
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Subjects of the thesis include: the formation and development history and the application of international law in anti-dumping dispute settlement at the WTO; the WTO's current conceptions on anti-dumping issue, anti-dumping disputes and international law applicable to the anti-dumping dispute settlement; the content of general and specific legal issues of the international law applicable to anti-dumping dispute settlement at the WTO.
14p change05 14-06-2016 71 2 Download
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The process of formation and development, the features of content, art and achievement of the ethnic minority prose in northern Vietnam in the past half century; some issues during the development of the prose of ethnic minorities the ethnic cultural identity, the relationship between folklore and written literature, tradition and modernity in compositions of some typical authors.
28p change03 06-05-2016 34 4 Download