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Thuy Thi Hai HO,Trinh Ngoc Phuong VU,Hieu Minh VU 한국유통과학회 2020 The Journal of Asian Finance, Economics and Busine Vol.7 No.11
This paper investigates factors impacting on sustainable fashion buying intention of consumers by reviewing studies about the topic and conducting a survey with consumers in Ho Chi Minh City. In detail, firstly, an interview with 15 respondents was conducted to check the understanding of concepts and questions and, secondly, the study used the convenient sampling method, with 172 samples collected and analyzed, of which young respondents accounted for the majority of the sample. The respondents tend to go shopping many times in a year, with the number of people buying fashion products from every week to every two months accounting for 65.2% totally. The findings suggest that the firms should prioritize strategies that can improve customer attitude toward sustainable fashion, making them feel good, pleasant, satisfied and favorable when engaging in sustainable fashion consumption. This study concludes that consumers need more information to enable them to make better ethical decisions. This study proposes that the major channels that consumers use to seek sustainable product information include public education, peer influence, and corporate marketing information about the products. This study concludes that public education and corporate marketing information on green consumption education is effective for improving consumer sustainable buying intention.
A New Bearing-Only Navigation Law
Minh Hoang Trinh,Viet Hoang Pham,Phuong Huu Hoang,Jin-Hee Son,Hyo-Sung Ahn 제어로봇시스템학회 2017 제어로봇시스템학회 국제학술대회 논문집 Vol.2017 No.10
This paper proposes a new bearing-only control law which can be used for autonomous navigation task. We firstly compare the proposed control law with a commonly used control law in the literature when the agent navigates with only one beacon. Second, we prove that if there are two or more beacons, the agent can almost globally asymptotically reaches the desired position under the proposed control law. Third, the proposed control law is then applied to a cooperative bearing-only navigation problem. Simulation result is given to support the mathematical analysis.
Van Trinh, Pham,Lee, Junho,Minh, Phan Ngoc,Phuong, Doan Dinh,Hong, Soon Hyung Elsevier 2018 JOURNAL OF ALLOYS AND COMPOUNDS Vol.769 No.-
<P><B>Abstract</B></P> <P>In this paper, oxidized-silicon carbide particle/aluminum 6061 (oxidized-SiC<SUB>p</SUB>/Al6061) composites were fabricated using a spark plasma sintering technique. The microstructure, mechanical properties, and wear behavior of oxidized-SiC<SUB>p</SUB>/Al6061 composites were investigated. The results revealed an improvement in interfacial bond strength between Al6061 and oxidized SiC<SUB>p</SUB> due to the formation of an MgAl<SUB>2</SUB>O<SUB>4</SUB> continuous phase and suppression of brittle Al<SUB>4</SUB>C<SUB>3</SUB> formation at the interfacial layer. Hardness (∼145 HV), ultimate tensile strength (∼226 MPa), and elongation (10.8%) were enhanced by 75%, 26%, and 32%, respectively, for the composite containing 1400°C-oxidized SiC<SUB>p</SUB>, compared with those reinforced with as-received SiC<SUB>p</SUB>. The friction coefficient and specific wear rate of oxidized-SiC<SUB>p</SUB>/Al6061 composites were reduced by 7% and 17%, respectively; this is attributable to the improved hardness and strength of the composite and the transition of wear mechanisms from a combination of adhesive and fatigue wear to abrasive wear. Quantitative correlations among yield strength, ultimate tensile strength, and interfacial bond strength in SiC<SUB>p</SUB>/Al6061 composites were analyzed for the first time.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Oxidized-SiC<SUB>p</SUB>/Al6061 composites were prepared by spark plasma sintering. </LI> <LI> Interfacial layer between oxidized-SiC<SUB>p</SUB> and Al6061 matrix was investigated. </LI> <LI> The interfacial bond strength between oxidized SiC<SUB>p</SUB> and Al6061 matrix was estimated. </LI> <LI> Mechanical properties and wear resistance of the composites were improved. </LI> <LI> New quantitative correlations among the strengths of the composites was analyzed. </LI> </UL> </P>
Dieu Linh Tran,Anh Phuong Nguyen Hong,Ngoc Hoi Nguyen,Ngoc Trinh Huynh,Bao Ha Le Tran,Cam Tu Tran,Minh Dung Truong,Quan Dang Nguyen,박기동,Dai Hai Nguyen 한국공업화학회 2023 Journal of Industrial and Engineering Chemistry Vol.120 No.-
α-calcium sulfate hemihydrate (α-HH) was synthesized by salt solution methods to prepare a promising biomaterial for bone tissue repair and regeneration. The successful synthesis of α-HH was evaluated by field emission scanning electron microscopy (FE-SEM), thermogravimetric analysis (TGA), X-ray diffraction (XRD), and Fourier transform infrared (FTIR) scanning. The sterility of α-HH before and after irradiation with gamma ray was firstly confirmed by Colonies Forming Units (CFU) counting assay, to target the surgical grade application. In vitro tetrazolium bromide (MTT) assay, crystal violet (CV) and acridine orange (AO) staining was performed to assess the initial cytotoxicity and cell attachment ability of α-HH. Further in vivo implantation into rabbit distal femoral condyles defect exhibited the ability of salt solution-synthesized α-HH to promote the localization of osteocytes and osteoblasts, which improve the bone tissue repair and regeneration. The findings suggested that α-calcium sulfate hemihydrate synthesized by salt solution method is a potential material that can be used as bone substitutes.
Nguyen Bich Thu,Trinh Nam Trung,Do Thi Ha,Nguyen Minh Khoi,Nguyen Viet Than,Thipthaviphone Soulinho,Nguyen Hai Nam,Tran Thi Phuong,배기환 한국생약학회 2010 Natural Product Sciences Vol.16 No.4
The methanol extract of Zanthoxylum rhetsa (MZRR) were evaluated for its ability to suppress the formation of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) in lipopolysaccharide (LPS)-activated RAW 264.7 macrophages. MZRR presented an inhibition of LPS-induced production of nitric oxide (NO) and prostaglandin E2 (PGE2) in RAW 264.7 macrophages. Western blotting and RT-PCR analyses demonstrated that MZRR significantly inhibited the protein and mRNA expressions of iNOS and COX-2 in LPS-activated macrophages in a dose-dependent manner. LPS-induced COX-2, iNOS, and nuclear factor kappa beta (NF-kB) activity were also decreased in the presence of MZRR. The production of tumor necrosis factor-a (TNF-a), the mRNA expression levels of pro-inflammatory cytokines, including TNF-a and IL-1b, were reduced after MZRR administration in a dose dependent-manner. These results suggest that the MZRR extract involved in the inhibition of iNOS and COX-2 via the NF-kB pathway, revealing a partial molecular basis for anti-inflammatory properties of the MZRR extract.
Factors Affecting Intention to Purchase Green Products in Vietnam
NGUYEN, Thi Kim Chi,NGUYEN, Dat Minh,TRINH, Van Thien,TRAN, Thi Phuong Diu,CAO, Tuan Phong Korea Distribution Science Association 2020 The Journal of Asian Finance, Economics and Busine Vol.7 No.4
The study aims to assess factors affecting intention to purchase green products in Vietnam. The study employs samples from customers who have actually experienced green consumption in Vietnam. The samples were collected by convenient sampling methods. The survey obtained 206 responses with full information. The survey was conducted from October 2019 to January 2020. The measurement scale was a 5-point scale with 1- completely disagree and 5- strongly agree. This study employs factor analysis and structural equation modelling analysis. The results showed that the social and environment sustainability awareness have positive effects on altruism of customers who are interested in green consumption. Altruism also has the same direction on green purchase intention. Besides, the attitude toward buying green and health consciousness affects green purchase intention. At the same time, the altruism and attitude towards buying green products also influence positively on green purchase intention. Besides, the health consciousness positively affects attitude towards buying green products. The results show that the health consciousness has a negative impact on intention to purchase green products. The findings suggest that it is necessary to raise customers' health consciousness, customers' altruism from disseminating knowledge about environmental protection as well as society to enhance the green consumption in Vietnam.