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Nguyen, Duc Anh,Le, Thi Suong,Park, Dae Young,Suh, Dongseok,Jeong, Mun Seok American Chemical Society 2019 ACS APPLIED MATERIALS & INTERFACES Vol.11 No.41
<P>We directly synthesize MoWS<SUB>2</SUB> nanosheets on conductive carbon nanotube yarn (MoWS<SUB>2</SUB>/CNTY) and carbon fiber cloth (MoWS<SUB>2</SUB>/CC) through a fast and low-temperature thermolysis method to obtain flexible catalyst electrodes that show high performance in the hydrogen evolution reaction. Small Tafel slopes of 41.8 and 46.7 mV dec<SUP>-1</SUP> are achieved for MoWS<SUB>2</SUB>/CC and MoWS<SUB>2</SUB>/CNTY, respectively, by optimizing the density of the exposed active edge sites of vertically aligned MoWS<SUB>2</SUB> on CNTY and CC. Furthermore, the catalyst electrodes demonstrate good electrocatalytic stability over 36 h. The proposed technique for fabricating high-performance, binder-free, and flexible catalyst electrodes is more accessible and faster than conventional methods.</P> [FIG OMISSION]</BR>
Optimization of Curing Regimes for Precast Prestressed Members with Early-Strength Concrete
Songhee Lee,Ngocchien Nguyen,Thi Suong Le,Chadon Lee 한국콘크리트학회 2016 International Journal of Concrete Structures and M Vol.10 No.3
Early-strength-concrete (ESC) made of Type I cement with a high Blaine value of 500 ㎡/kg reaches approximately 60 % of its compressive strength in 1 day at ambient temperature. Based on the 210 compressive test results, a generalized rate-constant material model was presented to predict the development of compressive strengths of ESC at different equivalent ages (9, 12, 18, 24, 36, 100 and 168 h) and maximum temperatures (20, 30, 40, 50 and 60 °C) for design compressive strengths of 30, 40 and 50 MPa. The developed material model was used to find optimum curing regimes for precast prestressed members with ESC. The results indicated that depending on design compressive strength, conservatively 25–40 % savings could be realized for a total curing duration of 18 h with the maximum temperature of 60 °C, compared with those observed in a typical curing regime for concrete with Type I cement.
Optimization of Curing Regimes for Precast Prestressed Members with Early-Strength Concrete
Lee, Songhee,Nguyen, Ngocchien,Le, Thi Suong,Lee, Chadon Korea Concrete Institute 2016 International Journal of Concrete Structures and M Vol.10 No.3
Early-strength-concrete (ESC) made of Type I cement with a high Blaine value of $500m^2/kg$ reaches approximately 60 % of its compressive strength in 1 day at ambient temperature. Based on the 210 compressive test results, a generalized rateconstant material model was presented to predict the development of compressive strengths of ESC at different equivalent ages (9, 12, 18, 24, 36, 100 and 168 h) and maximum temperatures (20, 30, 40, 50 and $60^{\circ}C$) for design compressive strengths of 30, 40 and 50 MPa. The developed material model was used to find optimum curing regimes for precast prestressed members with ESC. The results indicated that depending on design compressive strength, conservatively 25-40 % savings could be realized for a total curing duration of 18 h with the maximum temperature of $60^{\circ}C$, compared with those observed in a typical curing regime for concrete with Type I cement.
The effective model of the human Acetyl-CoA Carboxylase inhibition by aromatic-structure inhibitors
Nguyen Truong Cong Minh,Bui Tho Thanh,Le Xuan Truong,Nguyen Thi Bang Suong,Le Thi Xuan Thao 한국전기전자학회 2017 전기전자학회논문지 Vol.21 No.3
The research investigates the inhibition of fatty acid biosynthesis of the human Acetyl-CoA Carboxylase enzyme by the aromatic-structure inhibitors (also known as ligands) containing variables of substituents, contributing an important role in the treatment of fatty-acid metabolic syndrome expressed by the group of cardiovascular risk factors increasing the incidence of coronary heart disease and type-2 diabetes. The effective interoperability between ligand and enzyme is characterized by a 50% concentration of enzyme inhibitor (IC50) which was determined by experiment, and the factor of geometry structure of the ligands which are modeled by quantum mechanical methods using HyperChem 8.0.10 and Gaussian 09W softwares, combining with the calculation of quantum chemical and chemico-physical structural parameters using HyperChem 8.0.10 and Padel Descriptor 2.21 softwares. The result data are processed with the combination of classical statistical methods and modern bioinformatics methods using the statistical softwares of Department of Pharmaceutical Technology – Jadavpur University – India and R v3.3.1 software in order to accomplish a model of the quantitative structure - activity relationship between aromatic-structure ligands inhibiting fatty acid biosynthesis of the human Acetyl-CoA Carboxylase.
The effective model of the human Acetyl-CoA Carboxylase inhibition by aromatic-structure inhibitors
Minh, Nguyen Truong Cong,Thanh, Bui Tho,Truong, Le Xuan,Suong, Nguyen Thi Bang,Thao, Le Thi Xuan Institute of Korean Electrical and Electronics Eng 2017 전기전자학회논문지 Vol.21 No.3
The research investigates the inhibition of fatty acid biosynthesis of the human Acetyl-CoA Carboxylase enzyme by the aromatic-structure inhibitors (also known as ligands) containing variables of substituents, contributing an important role in the treatment of fatty-acid metabolic syndrome expressed by the group of cardiovascular risk factors increasing the incidence of coronary heart disease and type-2 diabetes. The effective interoperability between ligand and enzyme is characterized by a 50% concentration of enzyme inhibitor ($IC_{50}$) which was determined by experiment, and the factor of geometry structure of the ligands which are modeled by quantum mechanical methods using HyperChem 8.0.10 and Gaussian 09W softwares, combining with the calculation of quantum chemical and chemico-physical structural parameters using HyperChem 8.0.10 and Padel Descriptor 2.21 softwares. The result data are processed with the combination of classical statistical methods and modern bioinformatics methods using the statistical softwares of Department of Pharmaceutical Technology - Jadavpur University - India and R v3.3.1 software in order to accomplish a model of the quantitative structure - activity relationship between aromatic-structure ligands inhibiting fatty acid biosynthesis of the human Acetyl-CoA Carboxylase.