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Income Distribution and Factors Affecting the Bank’s Stability
Viet Xuan TRINH(Viet Xuan TRINH ),Du Kim DO(Du Kim DO),Anh Thi Lan NGUYEN(Anh Thi Lan NGUYEN ) 한국유통과학회 2022 유통과학연구 Vol.20 No.9
Purpose: Research on banking sustainability plays an important role in helping banks understand the level of risk in different types of companies. Therefore, this study was conducted to determine the factors affecting the sustainability of Joint Stock Commercial Banks in Vietnam. Research design, data and methodology: The following theories, the factors affecting the bank's sustainability include: Business model diversification (income diversification), bank size, loan ratio, and net interest margin. Data was collected from Joint Stock Commercial banks in Vietnam from 2015 to 2019. With GLS model on panel data with banks listed on Vietnam stock exchange. Results: The analysis results show that net interest income has a positive impact on the sustainable business results of banks through the rate of return on total assets (ROA). The non-interest income hasn’t impact on bank stability. From this result, there aren’t positive signs of income diversification in banks. At the same time, with the obtained results, the study also provides a policy implication for banks. Conclusions: The study also provides some policy implications to improve the bank stability. Diversifying income in banks is necessary, but how to make it influential banks has not yet been done. Therefore, the adjustments in non-interest business activities need to be carefully considered by banks.
Discovery of cycloartane-<i>type</i> triterpene saponins from <i>Mussaenda glabra</i>
Thu, Vu Kim,Bach, Nguyen Xuan,Anh, Luu The,Trang, Do Thi,Nhiem, Nguyen Xuan,Tai, Bui Huu,Van Kiem, Phan,Van Minh, Chau,Park, SeonJu,Seo, Yohan,Namkung, Wan,Kim, Seung Hyun Elsevier 2019 PHYTOCHEMISTRY LETTERS Vol.33 No.-
<P><B>Abstract</B></P> <P>Five new cycloartane saponins, mussaglaosides A–E (<B>1</B>–<B>5</B>) together with five known saponins, mussaendoside O, mussaendoside, G mussaendoside U, mussaendoside P, and mussaendoside Q (<B>6</B>–<B>10</B>) were isolated from the leaves of <I>Mussaenda glabra.</I> Their structures were determined on the basis of extensive spectroscopic methods, including 1D-, 2D-NMR, and MS data. All compounds were evaluated for ANO1 inhibitory activity using calcium-activated chloride channel and YFP expressing HT29 cells. Among the tested compounds, compound <B>6</B> strongly inhibited chloride channel activity with IC<SUB>50</SUB> value of 22.0 ± 1.7 μM without any cytotoxicity.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Five new cycloartane saponins, mussaglaosides A–E (<B>1</B>–<B>5</B>) were isolated from <I>Mussaenda glabra</I>. </LI> <LI> The structures were successfully determined by spectroscopic evidence. </LI> <LI> Compound <B>6</B> strongly inhibited chloride channel activity (IC<SUB>50</SUB> value of 22.0 ± 1.7 μM). </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
Ahla Jo,Tae-Han Kim,Dong-Min Kim,김형모,Bomi Seong,Jaehi Kim,Xuan-Hung Pham,정흥수,Sang Hun Lee,Do Won Hwang,Dae Hong Jeong,Yoon-Sik Lee,Dong-Eun Kim,Bong-Hyun Jun 한국공업화학회 2020 Journal of Industrial and Engineering Chemistry Vol.90 No.-
As virus spread can lead to severe epidemics and pandemics associated with high mortality, it is necessary to have a highly sensitive detection method for viruses. Although various detection methods have been developed so far, current methods in detecting a virus require preprocessing and involve quite intricate processes of low sensitivity. Here, we have developed a virus detection method with a broad dynamic range and high sensitivity, based on immuno-complex formation between quantum dot (QD)- embedded silica nanoparticles (QD2 ) and magnetic beads. The multiple QD- containing QD2 s showed 500 times stronger photoluminescence than individual QDs. When biotin was immobilized as a ligand, streptavidin was detected in a range of 10 zM to 10 nM. The clinical applicability of the QD2 -based system was examined using the avian virus (i.e., H1N1 influenza virus), and it showed a detection range of 4.76 × 10-4 < span class="xps_thinspace"> ~ 3.2 hemagglutination unit/mL. This result is comparable to the polymerase chain reaction method, and is approximately 2100 times more sensitive than the conventional hemagglutination method. Since the QD2 -based system could detect target molecules with high sensitivity without requiring an amplification step, it can be applied in various biomedical and clinical fields.
Xuan Thang Cao,Maheshkumar Prakash Patil,Quoc Thang Phan,Cuong M.Q. Le,Byung-Hyun Ahn,GUN-DO KIM,임권택 한국공업화학회 2020 Journal of Industrial and Engineering Chemistry Vol.83 No.-
This paper reports a green and direct functionalization of poly(ethylene glycol)-graft-[furfuryl-graft-(poly(styrene-alt-maleic anhydride))] (PEG-PSMF) on the surface of single walled carbon nanotubes (SWCNTs)in aqueous media through Diels-Alder (DA) click reaction. Firstly, novel PEG grafted, furfurylfunctionalized copolymers were prepared by RAFT polymerization followed by ring opening reactions. The functional copolymer was simply grafted on SWCNTs by DA reaction at room temperature underultrasonication. The resulting hybrid materials were characterized by 1H NMR, GPC, UV–vis, FT-IR, TGA,TEM, and DLS. The hybrid materials possessed a high drug loading capacity (DLC) of doxorubicin (DOX),which could reach up to 279.9 wt.% of DLC. Moreover, in vitro drug release profiles showed that drugrelease rate at pH 5.5 under an acidic condition of tumor cell microenvironment was much higher than atpH 7.4 of the physiological condition. MTT assays demonstrated that the hybrid materials did not haveany practical cytotoxicity against the normal HEK293 cell line, while drug loaded hybrids displayed a highantitumor activity towards HeLa cancer cells. This strategy offers a promising SWCNT-based drug carrierfor tumor-targeted chemotherapy.
Physics study for high-performance and very-low-boron APR1400 core with 24-month cycle length
Do, Manseok,Nguyen, Xuan Ha,Jang, Seongdong,Kim, Yonghee Korean Nuclear Society 2020 Nuclear Engineering and Technology Vol.52 No.5
A 24-month Advanced Power Reactor 1400 (APR1400) core with a very-low-boron (VLB) concentration has been investigated for an inherently safe and high-performance PWR in this work. To develop a high-performance APR1400 which is able to do the passive frequency control operation, VLB feature is essential. In this paper, the centrally-shielded burnable absorber (CSBA) is utilized for an efficient VLB operation in the 24-month cycle APR1400 core. This innovative design of the VLB APR1400 core includes the optimization of burnable absorber and loading pattern as well as axial cutback for a 24-month cycle operation. In addition to CSBA, an Er-doped guide thimble is also introduced for partial management of the excess reactivity and local peaking factor. To improve the neutron economy of the core, two alternative radial reflectors are adopted in this study, which are SS-304 and ZrO<sub>2</sub>. The core reactivity and power distributions for a 2-batch equilibrium cycle are analyzed and compared for each reflector design. Numerical results show that a VLB core can be successfully designed with 24-month cycle and the cycle length is improved significantly with the alternative reflectors. The neutronic analyses are performed using the Monte Carlo Serpent code and 3-D diffusion code COREDAX-2 with the ENDF/B-VII.1.
Xuan Do, Truong,Prajitno, Hermawan,Lim, Young-Il,Kim, Jaehoon Elsevier 2019 The Journal of supercritical fluids Vol.150 No.-
<P><B>Abstract</B></P> <P>The solvothermal liquefaction of sewage sludge (SS) has received much attention as an ecofriendly method of liquid fuel production. In this study, we evaluated the economic feasibility of bio-heavy-oil (BHO) production from 100 t/d SS using supercritical ethanol (scEtOH) and methanol (scMeOH). The process included a dryer, supercritical reactor, BHO separator, steam boiler, wastewater treatment unit and storages. Two cases for the techno-economic analysis (TEA) were considered: BHO production with scEtOH (Case 1) and with scMeOH (Case 2). The four-level economic potential approach (4-level EP) was used for the TEA. The total capital investments of Cases 1 and 2 were 19.6 and 19.5 million dollars, respectively. Case 2 showed higher economic potential than Case 1 because of the low price of methanol. The BHO plant using scMeOH was economically feasible with a return on investment of 21%/a.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Bio-heavy-oil (BHO) was produced by supercritical (SC) reaction of sewage sludge (SS). </LI> <LI> Process flow diagram for 100 t/d SS plants is proposed using SC ethanol and methanol. </LI> <LI> The BHO plant with SC methanol was more profitable than that with SC ethanol. </LI> <LI> The full-scale BHO plant with scMeOH showed economic feasibility with a 21% ROI. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>