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NGUYEN Trung Hieu,NGUYEN Phuoc Tai DAOS(The Daesoon Academy of Sciences) 2023 Journal of Daesoon Thought and the Religions of Ea Vol.2 No.2
Daoism was introduced into the South-West of Vietnam via two main entries: the missionaries from North and Central Vietnam who migrated to the South by following the Southward movement and the spread of Daoism by Chinese migrant men who came and settled in the South-West of Vietnam from the late seventieth century to late nineteenth century. However, the biggest influence of Daoism in the Southwest of Vietnam was mainly the Chinese missionaries of Daoism. As time went by, together with the impacts of social and historical circumstances, Daoism had a strong influence on the lives of the South-West people in terms of different aspects, especially their faith and religions. The impact of Daoism into people's faith and religion was considerable, especially to the indigenous religions, of which the religion, Four Debts of Gratitude, is a representative example. With the aims of clarifying how Four Debts of Gratitude was influenced by Daoist thought and how the indigenous religions and systemized ideologies in the South-West of Vietnam were related during the period of living condition expansion as well as cohabitation of several ethnic groups in the region, this article focuses on Daoist thought expressed in typical symbols in the sacred architecture of the Four Debts of Gratitude such as Cổ Lầu, wine gourds, and the Eight Trigrams. Once properly examined, it becomes clear that the prominent symbols and other Daoist elements show that Daoism had a profound influence on the Four Debts of Gratitude.
Hieu Nguyen,Jeong Won Shin,Hai-Van Giap,Ki Beom Kim,Hwa Sung Chae,Young Ho Kim,Hae Won Choi 대한치과교정학회 2021 대한치과교정학회지 Vol.51 No.3
soft tissue changes following maxillary expansion using micro-implantsupported maxillary skeletal expanders (MSEs) in young adults by cone-beam computerized tomography (CBCT) and to evaluate the correlations between hard and soft tissue changes after MSE usage. Methods: Twenty patients (mean age, 22.4 years; range, 17.6–27.1) with maxillary transverse deficiency treated with MSEs were selected. Mean expansion amount was 6.5 mm. CBCT images taken before and after expansion were superimposed to measure the changes in soft and hard tissue landmarks. Statistical analyses were performed using paired t-test and Pearson’s correlation analysis on the basis of the normality of data. Results: Average lateral movement of the cheek points was 1.35 mm (right) and 1.08 mm (left), and that of the alar curvature points was 1.03 mm (right) and 1.02 mm (left). Average forward displacement of the cheek points was 0.59 mm (right) and 0.44 mm (left), and that of the alar curvature points was 0.61 mm (right) and 0.77 mm (left) (p < 0.05). Anterior nasal spine (ANS), posterior nasal spine (PNS), and alveolar bone width showed significant increments (p < 0.05). Changes in the cheek and alar curvature points on both sides significantly correlated with hard tissue changes (p < 0.05). Conclusions: Maxillary expansion using MSEs resulted in significant lateral and forward movements of the soft tissues of cheek and alar curvature points on both sides in young adults and correlated with the maxillary suture opening at the ANS and PNS.
Hieu, Dang Van Korean Mathematical Society 2015 대한수학회지 Vol.52 No.2
In this paper, a novel parallel hybrid iterative method is proposed for finding a common element of the set of solutions of a system of equilibrium problems, the set of solutions of variational inequalities for inverse strongly monotone mappings and the set of fixed points of a finite family of nonexpansive mappings in Hilbert space. Strong convergence theorem is proved for the sequence generated by the scheme. Finally, a parallel iterative algorithm for two finite families of variational inequalities and nonexpansive mappings is established.
Pynomial modeling for efficient predistortion of HPA
Hieu, Nguyen Thanh,Jianxue, Jin,Ryu, Heung-Gyoon 충북대학교 컴퓨터정보통신 연구소 2004 컴퓨터정보통신연구 Vol.12 No.3
High power amplifier (HPA) in transmitter of communication systems usually operates in near saturation point in order to achieve the maximum power efficiency. In this region, undesirable nonlinear distortions may be introduced. In this paper, we present a polynomial modeling method used for efficient predistortion to compensate for the nonlinear distortion. The polynomial models are derived from the electrical parameters in data sheets of actual amplifiers such as gain, the third order intercept point of output power and 1dB compression point. We can find the polynomial coefficients of predistorter from the HPA polynomial modeling. Then, it is simple and effective to suppress the nonlinear distortion. We also study the effects of predistortion on the SER performance of communication system with 16-QAM modulation format. From the simulation results, it can be shown that BER performance is improved by the proposed efficient predistortion.
Impact of Direct Tax and Indirect Tax on Economic Growth in Vietnam
Hieu Huu NGUYEN 한국유통과학회 2019 The Journal of Asian Finance, Economics and Busine Vol.6 No.4
Tax can be categorised into direct tax and indirect tax. This paper uses the ordinary least-squares regression method to study the impact of direct and indirect tax on economic growth in Vietnam in the period 2003-2017. Statistical data is collected from the Ministry of Finance of Vietnam. Theoretically, tax generates the state budget revenue and is a tool to regulate the economy. The results of statistical tests show that tax has a positive impact on Vietnam's economic growth. However, the effects of direct tax and indirect tax are different. The indirect tax has a positive influence and promote Vietnam's economic growth, while the impact of the direct tax is invisible. There has not been sufficient evidence to confirm that the indirect tax has a more positive impact than the direct tax. To promote economic growth, Vietnam needs to restructure its tax system towards: (1) Increasing the proportion of indirect tax, reducing the proportion of direct tax in the state budget revenue; (2) Expanding tax bases; (3) Reducing tax rates of corporate income tax and personal income tax; (4) Increasing tax rates of environmental protection tax, natural resources tax, value added tax and excise tax on some types of goods which harm health and environment.
Hieu Trung Bui,박준서,정옥희,Joseph Dela Cruz 한국고분자학회 2014 Macromolecular Research Vol.22 No.12
This study focused on the development of biomedicated electrospun nanofiber mats for preventing woundinfections and accelerating wound healing. Polycaprolactone (PCL) nanofibers-loaded curcumin (Cur) and polyethyleneglycol (PEG) were generated by an electrospinning technique. The change in surface morphology of the electrospunnanofibers to porous surface after immersion was obtained by field emission scanning electron microscopy(FE-SEM). The biological characteristics of the Cur-loaded PCL-PEG nanofiber mats such as cell viability, cellattachment, anti-inflammatory and antibacterial properties, and in vivo wound healing capability were examined. The blending of PEG with PCL resulted in the formation of pores on the nanofibers after immersion, which supportscell viability and proliferation. The mouse myoblast cell line C2C12 showed about 80% viability on the Cur-loadedPCL-PEG nanofiber mat. SEM images showed that the cells could extremely attach and spread out over the surfaceof the Cur-loaded PCL-PEG nanofiber mat. The inclusion of 0.5 wt% Cur (with respect to PCL) in both the PCLand PCL-PEG blended nanofiber mats inhibited excessive production of nitric oxide (NO) in RAW264.7 mousemacrophages and exhibited good antibacterial activity against Staphylococcus aureus (S. aureus). In vivo woundhealing showed that the treatment using Cur-loaded PCL-PEG nanofiber mat significantly increased the rate ofwound closure (99%) on day 10 as compared that using PCL nanofiber mat (59%). These results suggest that thePCL nanofiber matrix containing Cur and PEG can facilitate wound healing with cell proliferation and anti-inflammatoryproperties.