Search Results - "Nguyen, Vinh Ngoc"

Mechanical properties of constituent phases in structural steels and heat-affected zones investigated by statistical nanoindentation analysis by Pham, Thai-Hoan, Nguyen, Ngoc-Vinh

“…•Grid naoindentation was performed on two structural steels and their heat-affected zones.•Constituent microstructural phases in steels can be identified from…”
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Experimental study to investigate microstructure and continuous strain rate sensitivity of structural steel weld zone using nanoindentation by Nguyen, Ngoc-Vinh, Kim, Seung-Eock

“…•Variation of microstructure in the weld zone and pile-up phenomenon were observed.•Hardness depended not only on indentation size but also on strain rate…”
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Methodology to extract constitutive equation at a strain rate level from indentation curves by Nguyen, Ngoc-Vinh, Kim, Jung J., Kim, Seung-Eock

“…•A method to extract a constitutive equation from indentation curves was proposed.•Six dimensionless equations were constructed by performing the dimensional…”
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An experimental study on stress relaxation behaviour of high strength steel wire: Microstructural evolution and degradation of mechanical properties by Nguyen, Ngoc-Vinh, Vu, Quoc-Anh, Kim, Seung-Eock

“…•Microstructure includes the fragmented cementite/ferrite lamellae.•Dislocation slip distance tends to broaden with increasing initial stress.•Relaxation rates…”
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Microstructure and strain rate sensitivity behavior of SM490 structural steel weld zone investigated using indentation by Nguyen, Ngoc-Vinh, Pham, Thai-Hoan, Kim, Seung-Eock

“…•The microstructure of SM490 structural steel weld zone was observed.•Hardness and yield strength of BM, HAZ, and WM show strain rate-dependent behaviors.•SRS…”
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Characterization of strain rate effects on the plastic properties of structural steel using nanoindentation by Nguyen, Ngoc-Vinh, Pham, Thai-Hoan, Kim, Seung-Eock

“…•Strain rate sensitivity was obtained using indentation and dynamic tensile tests.•Strain rate effects on plastic properties were investigated using…”
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Strain rate-dependent behaviors of mechanical properties of structural steel investigated using indentation and finite element analysis by Nguyen, Ngoc-Vinh, Pham, Thai-Hoan, Kim, Seung-Eock

“…•The pile-up phenomena occurred at all strain rate indentation levels, while the pop-in events can be observed to be more pronounced at low strain rate.•The…”
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PEGylated PAMAM dendrimers loading oxaliplatin with prolonged release and high payload without burst effect by Ho, Minh Nhat, Bach, Long Giang, Nguyen, Dai Hai, Nguyen, Cong Hao, Nguyen, Cuu Khoa, Tran, Ngoc Quyen, Nguyen, Ngoc Vinh, Hoang Thi, Thai Thanh

“…Oxaliplatin (OXA) was coupled to PEGylated polyamidoamine dendrimers of fourth generation (G4‐PEG@OXA) in the comparison to PEGylated ones of odd generation…”
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Determination of Antioxidant, Cytotoxicity, and Acetylcholinesterase Inhibitory Activities of Alkaloids Isolated from Sophora flavescens Ait. Grown in Dak Nong, Vietnam by Thang, Phan Nguyen Truong, Tran, Viet-Hung, Vu, Tran Anh, Vinh, Nguyen Ngoc, Huynh, Duyen Thi My, Pham, Duy Toan

“…Traditional/herbal medicine has gained increasing interests recently, especially in Asian countries such as Vietnam, due to its diverse therapeutic actions. In…”
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Assessment and source quantification of heavy metal(loid)s in surface water using multivariate analyses from the Saigon River, Vietnam by Nguyen, Binh Thanh, Nguyen, Vinh Ngoc, Truong, Huong Thu Thi, Do, Dung Doan, Nguyen, Tong Xuan, Nguyen, Duong Thuy Phuc, Nguyen, My Hoang, Dong, Hao Phu, Le, Anh Hung, Bach, Quang-Vu

“…The metal concentration in surface water of a river could be affected by season, position, and oceanic process such as tide. The current study aimed to (1)…”
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Synthesis of Ag/GO nanocomposite with promising photocatalytic ability for reduction reaction of p-nitrophenol by Tan Thi, Pham, Thang, Le Van, Van Khai, Tran, Diem, Tran Xuan, Nghia, Chau Ngoc Trong, Thi Thanh Ngan, Tran, Tri, Le Minh, Vinh, Nguyen Ngoc, Hien, Nguyen Minh

“…p-Aminophenol (PAP) is an important intermediate reagent in the synthesis of paracetamol, widely used as an analgesic and antipyretic drug. Therefore, finding…”
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Virtual screening for novel Staphylococcus Aureus NorA efflux pump inhibitors from natural products by Thai, Khac-Minh, Ngo, Trieu-Du, Phan, Thien-Vy, Tran, Thanh-Dao, Nguyen, Ngoc-Vinh, Nguyen, Thien-Hai, Le, Minh-Tri

“…NorA is a member of the Major Facilitator Superfamily (MFS) drug efflux pumps that have been shown to mediate antibiotic resistance in Staphylococcus aureus…”
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Seasonal, spatial variation, and pollution sources of heavy metals in the sediment of the Saigon River, Vietnam by Nguyen, Binh Thanh, Do, Dung Doan, Nguyen, Tong Xuan, Nguyen, Vinh Ngoc, Phuc Nguyen, Duong Thuy, Nguyen, My Hoang, Thi Truong, Huong Thu, Dong, Hao Phu, Le, Anh Hung, Bach, Quang-Vu

“…The current study was conducted to (1) examine seasonal and spatial distribution of heavy metals and metalloid in sediment from the Saigon River and (2)…”
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Strain rate sensitivity behavior of a structural steel during low-cycle fatigue investigated using indentation by Nguyen, Ngoc-Vinh, Pham, Thai-Hoan, Kim, Seung-Eock

“…In this study, a series of experiments consisting of low-cycle fatigue, constant loading rate indentation, creep indentation experiments, optical microscopy…”
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A new approach to estimate stress relaxation in a high strength steel wire using nanoindentation and finite element analysis by Nguyen, Ngoc-Vinh, Kim, Seung-Eock

“…High-strength steel wires have been widely employed in the construction for long-span structures. Since high-strength steel wires are susceptible to stress…”
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Liver Involvement Associated with Dengue Infection in Adults in Vietnam by DINH THE TRUNG, LE THI THU THAO, TRAN TINH HIEN, NGUYEN THE HUNG, NGUYEN NGOC VINH, PHAM TRAN DIEU HIEN, NGUYEN TRAN CHINH, SIMMONS, Cameron, WILLS, Bridget

“…Globally, the number of adults hospitalized with dengue has increased markedly in recent years. It has been suggested that hepatic dysfunction is more…”
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PEGylated poly(amidoamine) dendrimers-based drug loading vehicles for delivering carboplatin in treatment of various cancerous cells by Ho, Minh Nhat, Bach, Long Giang, Nguyen, Thi Hiep, Ho, Minh Hieu, Nguyen, Dai Hai, Nguyen, Cuu Khoa, Nguyen, Cong Hao, Nguyen, Ngoc Vinh, Hoang Thi, Thai Thanh

“…The fourth generation (G4) of poly(amidoamine) dendrimer was PEGylated and then physically incorporated with carboplatin to develop the new drug delivery…”
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High biochar rates may suppress rice (Oryza sativa) growth by altering the ratios of C to N and available N to P in paddy soils by Nguyen, Binh Thanh, Nguyen, Vinh Ngoc, Nguyen, Tong Xuan, Nguyen, My Hoang, Dong, Hao Phu, Dinh, Gai Dai, Van Nguyen, Nghia, Pham, Tan‐Viet

“…Although most studies have indicated that biochar can boost rice (Oryza sativa) growth, the material may also suppress it, depending on ratios of carbon (C) to…”
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Contrastive nutrient leaching from two differently textured paddy soils as influenced by biochar addition by Nguyen, Binh Thanh, Phan, Binh Trung, Nguyen, Tong Xuan, Nguyen, Vinh Ngoc, Van Tran, Thanh, Bach, Quang-Vu

“…Purpose The aims of the current study were to (1) examine the interactive effects of biochar addition and differently textured soils (clayey and sandy soils)…”
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Structure of a new usnic acid derivative from a deacylating Mannich reaction: NMR studies supported by theoretical calculations of chemical shifts by Nguyen, Huong Giang Thi, Nguyen, Vinh Ngoc, Kamounah, Fadhil S., Hansen, Poul Erik

“…In a conventional Mannich reaction using piperidine, hydroxypiperidines, morpholine, and N‐methylpiperazine with usnic acid, a deacetylation was observed…”
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