http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Nguyen Trong Phuoc,Pham Dinh Trung 대한토목학회 2016 KSCE JOURNAL OF CIVIL ENGINEERING Vol.20 No.7
The influence of mass of two-parameter elastic foundation on dynamic responses of beams subjected to a moving mass is presented in this paper. The analytical model of the foundation is characterized by shear layer connecting with elastic foundation modelled by linear elastic springs based on Winkler model and the mass of foundation is directly proportional with deformation of the springs. By using finite element method and principle of the dynamic balance, the governing equation of motion is derived and solved by the Newmark’s time integration procedure. The numerical results are compared with those obtained in the literature showing reliability of a computer program. The influence of parameters such as moving mass, stiffness and mass of foundation on dynamic responses of the beam is discussed.
Quantitative Trait Loci Associated with Heat Tolerance in Rice (Oryza sativa L.)
( Bui Chi Buu ),( Pham Thi Thu Ha ),( Bui Phuoc Tam ),( Tran Thi Nhien ),( Nguyen Van Hieu ),( Nguyen Trong Phuoc ),( Luong The Minh ),( Ly Hau Giang ),( Nguyen Thi Lang ) 한국육종학회 2014 Plant Breeding and Biotechnology Vol.2 No.1
A total of 310 BC2F2 lines derived from the cross of OM5930/N22 were evaluated for heat stress at flowering. Genetic map was set up with 264 polymorphic SSRs to detect linkage to the target traits. The map covers 2,741.63 cM with an average interval of 10.55 cM between two marker loci. Markers associated with heat tolerance were located mostly on chromosomes 3, 4, 6, 8, 10 and 11. The proportion of phenotypic variation explained by each QTL ranged from 17.1% for RM160 to 36.2% for RM3586. Four QTLs were detected for filled grains per panicle on chromosome 4 at the interval of RM468 - RM7076 and RM241 - RM26212, explaining 13.1 and 31.0% of the total phenotypic variation, respectively. Two QTLs controling unfilled grain percentage was also detected at loci RM554 and RM3686 on chromosome 3 explaining 25.0 and 11.2% of the total phenotypic variance. One QTL was detected for 1,000-grain weight located at the locus RM103 on chromosome 6, explaining 30.6% of the total phenotypic variance. Also, a QTL at the locus RM5749 on chromosome 4 was identified which explained 10.8% of the total phenotypic variance of grain yield. A single QTL at the interval of RM3586- RM160 on chromosome 3 was detected in conformity with the QTL findings for heat tolerance in previous studies.
Do Kien Quoc,Nguyen Trong Phuoc 대한기계학회 2005 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.19 No.1S
This paper Introduces a numerical method for integration of the lined1 and nonlinear differential dynamic equation of motion The variation of accereiation in two time steps is approximated as a combination of both trigonometric cosine and hyperbolic cosine functions with weighted cocfficient from which all necessary formulae are elaborated for the direct integration of the governing equation A number of linear and nonlinear dynamic problems with various degrees of freedom are ana lysed using both the suggested method and Newmark method f01 the comparison The numerical results show high advantages and effectiveness of the new method<br/>
Cuong-Le, Thanh,Nguyen, Khuong D.,Le-Minh, Hoang,Phan-Vu, Phuong,Nguyen-Trong, Phuoc,Tounsi, Abdelouahed Techno-Press 2022 Advances in nano research Vol.12 No.5
This study explores the linear and nonlinear solutions of sigmoid functionally graded material (S-FGM) nanoplate with porous effects. A size-dependent numerical solution is established using the strain gradient theory and isogeometric finite element formulation. The nonlinear nonlocal strain gradient is developed based on the Reissner-Mindlin plate theory and the Von-Karman strain assumption. The sigmoid function is utilized to modify the classical functionally graded material to ensure the constituent volume distribution. Two different patterns of porosity distribution are investigated, viz. pattern A and pattern B, in which the porosities are symmetric and asymmetric varied across the plate's thickness, respectively. The nonlinear finite element governing equations are established for bending analysis of S-FGM nanoplates, and the Newton-Raphson iteration technique is derived from the nonlinear responses. The isogeometric finite element method is the most suitable numerical method because it can satisfy a higher-order derivative requirement of the nonlocal strain gradient theory. Several numerical results are presented to investigate the influences of porosity distributions, power indexes, aspect ratios, nonlocal and strain gradient parameters on the porous S-FGM nanoplate's linear and nonlinear bending responses.
Viet-Thang Le,Chi Hue Nguyen,Phuoc Trong Do,Anh Minh Nguyen,Khoi Hong Vo 대한신경외과학회 2024 Journal of Korean neurosurgical society Vol.67 No.2
Objective : This study aimed to evaluate the clinical feasibility of the combination of ultrasound and nerve stimulator guidance in transforaminal epidural steroid injections (TESIs) to manage lumbosacral chronic radicular pain. Methods : Using the combination of nerve stimulator and ultrasound guidance, TESIs were performed in 125 segments of 78 patients who presented with chronic lumbar radicular pain. Demographic characteristics and surgical outcomes were recorded on admission, pre-procedural and post-procedural for 1-week, 1-month, 3-month, and 6-month follow-ups. The result was measured using the Numeric rating scale (NRS) and Oswestry disability index (ODI). Results : Patients who received TESIs showed significant improvements on two evaluation tools (NRS, ODI), compared to that before procedure (p<0.001). No significant complications were observed for 6 months’ follow-up. Conclusion : The result suggests that a combination of ultrasound and nerve stimulator guidance in transforaminal epidural injections is safe, reliable and effective for short-term management of lumbar disc herniation. It is a promising technique and has shown good results in providing intermediate pain relief.