Vietnam Journal of Science and Technology
ACI (2015-2021)SCOPUS (2019-2023)
2815-5784
2525-2518
Việt Nam
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Cơ quản chủ quản: Viện Hàn lâm Khoa học và Công nghệ Việt Nam , Publishing House of Natural Science and Technology, Viện Hàn lâm Khoa học và Công nghệ Việt Nam
Lĩnh vực:
Chemistry (miscellaneous)Environmental Science (miscellaneous)
Phân tích ảnh hưởng
Các bài báo tiêu biểu
Effect of the carbonization and activation processes on the adsorption capacity of rice husk activated carbon
Tập 55 Số 4 - 2017
In this study, rice husk was used as a precursor to prepare activated carbon using steam as a physical activation agent. Steam for activation can be used to activate almost all raw materials. A variety of methods have been developed but all of these share the same basic principle of initial carbonization followed by an activation step with steam. The study also investigates the effects of preparat......
#rice husk #carbonization #activation #activated carbon
EFFECT OF NANOSILICA FROM RICE HUSK ON THE GROWTH ENHANCEMENT OF CHILI PLANT (Capsicum frutescens L.)
Tập 54 Số 5 - Trang 607 - 2023
Nanomaterials hold great promise of improved plant disease resistance, controlled release of agro-chemicals, enhanced plant growth, etc. In this study, the effect of nanosilica (10 – 30 nm) prepared from rice husk on the growth promotion of chili plant in green house was carried out. The experiment of nanosilica treatment by foliar spraying was arranged in a factorial design with 3 replications at......
#Nanosilica #rice husk #growth #chili plant
Effect of Silica Nanoparticles on Properties of Coatings Based on Acrylic Emulsion Resin
- Trang - 2018
Phenolic compounds from Callistemon citrinus leaves and stems
Tập 54 Số 2 - 2016
In the search for bioactive constituents from Vietnamese plants, the leaves and stems of Callistemon citrinus (Curtis) Skeels were selected for chemical investigation. Phytochemical analysis of plant led to the isolation of eight phenolic compounds including two flavonoids (eucalyptine (1) and 8-demethyleucalyptine (2)), two alcohols (blumenol A (3), n-tetratriacontanol (4)), three benzoic acid d......
#Callistemon citrinus #flavonoid #triterpenoid.
A novel design of the Roots blower
Tập 57 Số 2 - 2019
This paper reports a novel curve developed from non - circular gearing theory, which can be applied in rotor profile design of the two - lobe Roots blower. The formulas for calculating the volumetric efficiency and specific flow rate of the blower have also been established. To evaluate this type of the Roots blower, the volumetric efficiency and specific flow rate are being compared with those pa......
#hydraulic machine #Roots blower #profile #flow
THE EFFECTS OF SILVER NANOPARTICLES ON GROWTH OF Chrysanthemum morifolium Ramat. cv. "JIMBA" IN DIFFERENT CULTURAL SYSTEMS
Tập 55 Số 4 - 2017
Silver nanoparticles (SNPs) are one of metallic nanoparticles widely applied in many fields. Research of SNPs application in plant tissue culture has been gaining attention in recent years. Moreover, novel plant tissue culture systems have been researched and developed for improving SNPs uptake capability in medium. In this study, we investigated effects of SNPs on Chrysanthemum morifolium ramat. ......
Chemical and pharmacological evaluation of Manglicolous lichen Graphis ajarekarii PATW. & C. R. KULK.
Tập 57 Số 3 - 2019
The chemical examination of ethanolic extract of manglicolous lichen Graphis ajarekarii (Ga-Et) resulted in isolation of three known metabolites – chiodectonic acid (1), graphenone (2) and graphisquinone (3). All the isolates (1-3) and Ga-Et were screened against DPPH and superoxide free radicals, six different cancer cell lines and one normal human cell line (NHME). This work is the first report ......
#manglicolous lichen #antioxidant #cancer #Sulforhodamine B assay
Biodiversity and distribution patterns of free-living nematodes communities in Ba Lai river, Ben Tre province
Tập 56 Số 2 - 2018
Nematodes communities in Ba Lai river, Ben Tre province were investigated in September of 2015 (eight stations from estuary to upstream). The results showed that the nematodes communities have characterized by high density and biodiversity, providing useful information of nematodes assemblages in freshwater habitas, in particular inland river. Also the results indicated that the distribution of ne......
#Ba Lai dam #Ben Tre province #biodiversity #dam effect #distribution #nematodes communities
Electrodeposition of hydroxyapatite/functionalized carbon nanotubes (HAp/fCNTs) coatings on the surface of 316L stainless steel
Tập 55 Số 6 - 2017
The coatings of hydroxyapatite/functionalized carbon nanotubes (HAp/fCNTs) were successfully synthesized on the surface of 316L stainless steel (316L SS) by electrodeposition. To improve the dispersion of CNTs into the electrolyte, CNTs were functionalized in the mixture of 67 % HNO3 and 98 % H2SO4 before electrodeposition coatings to form fCNTs. Different amounts of fCNTs were incorporated into ......
#Hydroxyapatite #fCNTs #HAp/fCNTs nanocomposite #316LSS #electrodeposition
Membrane distillation for seawater desalination applications in Vietnam: potential and challenges
Tập 55 Số 6 - 2017
Desalination of seawater using membrane distillation (MD) can be a practical approach to mitigating the fresh water scarcity in Vietnam. This paper provides a comprehensive review of the seawater MD desalination process. The fundamentals of the MD process including configurations, membrane modules, membrane properties, and heat and mass transfer mechanisms together with approaches to enhancing hea......
#membrane distillation #seawater desalination #fresh water scarcity #desalination processes