Vietnam Journal of Science and Technology

ACI (2015-2021)SCOPUS (2019-2023)

  2815-5784

  2525-2518

  Việt Nam

  bOx5EnEAAAAJ

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 NANOSILICA FROM RICE HUSK ON THE GROWTH ENHANCEMENT OF CHILI PLANT (Capsicum frutescens L.)
Tập 54 Số 5 - Trang 607 - 2023
Le Si Ngoc, Nguyen Ngoc Duy, Bui Van Le, Dang Van Phu, Nguyen Quoc Hien, Pham Dinh Dung, Nguyen Ngoc Thuy, Lu T. Minh Truc
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...... hiện toàn bộ
#Nanosilica #rice husk #growth #chili plant
Effect of the carbonization and activation processes on the adsorption capacity of rice husk activated carbon
Tập 55 Số 4 - 2017
Van Thi Thanh Ho, Kieu Thi Diem Vo, Dat Chi Nguyen, Tuan Dinh Phan, Hung Cam Ly, Hoa Thai Ma, Nguyen Bao Pham
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...... hiện toàn bộ
#rice husk #carbonization #activation #activated carbon
Effect of Silica Nanoparticles on Properties of Coatings Based on Acrylic Emulsion Resin
- Trang - 2018
Hùng Phi
Phenolic compounds from Callistemon citrinus leaves and stems
Tập 54 Số 2 - 2016
Pham Ngoc Khanh, Vu Thi Ha, Nguyen Manh Cuong, Ho Viet Đuc, Do Quoc Viet, Ninh The Son, Tran Thu Huong, Young Ho Kim, Doan Thi Van
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...... hiện toàn bộ
#Callistemon citrinus #flavonoid #triterpenoid.
A novel design of the Roots blower
Tập 57 Số 2 - 2019
Nguyen Hong Thai, Tran Ngoc Tien
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...... hiện toàn bộ
#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. ...... hiện toàn bộ
Chemical and pharmacological evaluation of Manglicolous lichen Graphis ajarekarii PATW. & C. R. KULK.
Tập 57 Số 3 - 2019
Polimati Haritha, Vinay Bharadwaj Tatipamula, Sunil Kumar Patnaik
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 ...... hiện toàn bộ
#manglicolous lichen #antioxidant #cancer #Sulforhodamine B assay
Electrodeposition of hydroxyapatite/functionalized carbon nanotubes (HAp/fCNTs) coatings on the surface of 316L stainless steel
Tập 55 Số 6 - 2017
Pham Thi Nam, Nguyen Van Trang, Dinh Thi Mai Thanh, Nguyen Thu Phuong, Nguyen Thi Thom, Cao Thi Hong, Nguyen Thi Xuyen
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 ...... hiện toàn bộ
#Hydroxyapatite #fCNTs #HAp/fCNTs nanocomposite #316LSS #electrodeposition
Biodiversity and distribution patterns of free-living nematodes communities in Ba Lai river, Ben Tre province
Tập 56 Số 2 - 2018
Ann Vanreusel, Tran Thanh Thai, Nguyen Thi My Yen, Ngo Xuan Quang, Nguyen Le Que Lam
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...... hiện toàn bộ
#Ba Lai dam #Ben Tre province #biodiversity #dam effect #distribution #nematodes communities
Membrane distillation for seawater desalination applications in Vietnam: potential and challenges
Tập 55 Số 6 - 2017
Nguyen Cong Nguyen, Duong Cong Hung, Nguyen Van Tinh, Pham Manh Thao, Phan Duc Nhan
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...... hiện toàn bộ
#membrane distillation #seawater desalination #fresh water scarcity #desalination processes