http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Ebrahimian, Neda,Montazeri, Fatemeh,Sadeghi, Mohammad Reza,Kalantar, Seyed Mehdi,Gilany, Kambiz,Khalili, Mohannad Ali The Korean Society for Reproductive Medicine 2020 Clinical and Experimental Reproductive Medicine Vol.47 No.4
Objective: The goal of the present study was to investigate the rate of chromosomal aneuploidies in surplus embryos after sex determination at the cleavage stage. Then, the same chromosomal aneuploidies were evaluated in blastocysts after extended culture. Methods: Sixty-eight surplus embryos were biopsied at the cleavage stage and incubated for an additional 3 days to allow them to reach the blastocyst stage. The embryos were reanalyzed via fluorescence in situ hybridization (FISH) to examine eight chromosomes (13, 15, 16, 18, 21, 22, X, and Y) in both cleavage-stage embryos and blastocysts. Results: Although the total abnormality rate was lower in blastocysts (32.35%) than in cleavage-stage embryos (45.58%), the difference was not significant (p=0.113). However, when we restricted the analysis to autosomal abnormalities, we observed a significant difference in the abnormality rate between the cleavage-stage embryos (44.11%) and the blastocysts (17.64%, p=0.008). A higher rate of sex chromosomal abnormalities was also observed in cleavage-stage embryos (29.4%) than in blastocysts (14.70%, p=0.038). Conclusion: The data indicated that embryo biopsy should be conducted at the blastocyst stage rather than the cleavage stage. The results also emphasized that examination of common chromosomal aneuploidies apart from sex selection cycles can be conducted in the blastocyst stage with the FISH method.
Hamed Ebrahimian 대한토목학회 2014 KSCE JOURNAL OF CIVIL ENGINEERING Vol.18 No.6
Field data sets for seven irrigation events during maize growing season were collected for characterizing infiltration properties invariable Alternate, Fixed Alternate and Conventional Furrow Irrigation (AFI, FFI and CFI, respectively). Three various estimationmethods; the two-point method and the INFILT and IPARM models; were used to estimate the infiltration parameters of the modifiedKostiakov equation for alternate and conventional furrows and then compared with field results. Less runoff losses and largerinfiltration were observed in alternate furrows as compared to conventional furrows due to increased lateral water movement to nonirrigatedfurrow. AFI had somewhat greater infiltration rate than FFI. The steady infiltration rate in AFI and FFI was higher than inCFI. The IPARM model had the most accurate and reliable performance relative to others in three irrigation treatments. However thetwo-point method also performed well. The INFILT model was not suitable on the experimental field studied and highlyoverestimated the infiltration for all irrigation treatments. The results indicated that measuring both advance and runoff data isnecessary to achieve reasonable and precise infiltration parameters. Having different infiltration characteristics in alternate furrows,design variables of alternate furrow irrigation will be different from conventional furrow irrigation in the same field.
Azadeh Ebrahimian Pirbazari,Mohammad Ali Zanjanchi 한국화학공학회 2014 Korean Journal of Chemical Engineering Vol.31 No.2
The photocatalytic activity of cobalt tetrasulphophthalocyanine immobilized onto MCM-41 was investigatedfor photocatalytic degradation of 4-chlorophenol (4-CP) in aqueous solutions. Immobilization of cobalt tetrasulphophthalocyaninecomplex to the walls of MCM-41 was performed by pre-anchorage of 3-(aminopropyl)-triethoxysilane(APTES) onto MCM-41 via post-synthesis method. X-ray diffraction, nitrogen physisorption, diffuse reflectance spectroscopy,energy-dispersive X-ray and FT-IR methods were used to characterize the product. Photocatalytic efficiencyof the prepared photocatalyst for degradation of 4-CP was tested under illumination of UV-A and visible light. The reaction intermediates were identified by gas chromatography-mass spectrometry (GC-MS) technique.
Meissner-like Effect on Normal-superfluid Interface of Imbalanced Fermi Gas
N. Ebrahimian,M. Mehrafarin 한국물리학회 2013 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.62 No.12
We examine the N-SF interface of a polarized Fermi gas with two spin species a and b, in thepresence of a weak external magnetic field. In our analysis we shall, therefore, consider the possibilityof the Meissner effect too. We use perturbation theory to solve the Bogoliubov equations and obtainthe wave functions. We consider the various scattering regions of the BCS regime and analyticallyobtain the transmission coefficients and the heat conductivity across the interface. We describe howthe heat conductivity is affected by the Meissner effect and the species imbalance. It suffices toremark that the leading order term in transmission coefficients are independent of energy E. Alsothe additional heat conductivity is found to be proportional to 2 ( is penetration depth). Thecorresponding graphs is also plotted and discussed.
Aircraft Energy Management System Using Chaos Red Fox Optimization Algorithm
Huo Zhirun,Liu SiJin,Ebrahimian Homayoun 대한전기학회 2022 Journal of Electrical Engineering & Technology Vol.17 No.1
In this study, the application of energy management system (EMS) for a hybrid system including fuel cell stack, supercapacitor, and battery energy storage unit in an aircraft has been analyzed. The primary purposed of using the EMS is to minimize the hydrogen consumption while controlling the supercapacitor and the battery states of charge (SOCs) under some working conditions. The minimization of the EMS in this study is based on designing a new improved metaheuristic algorithm, called Chaos Red Fox Optimization (CRFO) Algorithm to improve the system effi ciency in terms of convergence and global optimization terms of view. The proposed method has been then validated by comparing with some new and popular optimization algorithms in terms of hydrogen consumption to indicate its dominance. The results showed that the proposed CRFO algorithm with 18.19 g provides the minimum hydrogen consumption toward the other comparative metaheuristic algorithms. Also, the power extracted from the battery has been kept between [− 1600, 3900] W. Furthermore, the battery SOC status is limited between 80 and 42% of constraints and the battery SOC is limited between 40 to 92%. Finally, the value of the hydrogen consumption from the suggested CRFO-based EMS are compared with two start of the art methods including traditional PI control and equivalent consumption minimization strategy (ECMS) techniques to demonstrate the recommended method’s superiority.
Phase Transition of a Heavy-fermion Superconductor in a High Magnetic Field: Entanglement Analysis
R. Afzali,N. Ebrahimian 한국물리학회 2013 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.63 No.3
When the magnetic field is only acting on the spin of electrons, a transition from a normal toa modulated superconducting state or Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) superconductingstate may occur at low temperatures. A FFLO superconducting state, which accompanies anorder parameter that oscillates spatially, may be stabilized by a high applied magnetic field or amolecular field. Quantum multipartite entanglement is a new procedure for investigating quantumphase transitions. In this article, we deal with the phase transition of the FFLO state of CeCoIn5to a normal state by obtaining quantum multipartite entanglement of the system. For this purpose,using normal and anomalous Green functions and the density matrix, we obtain concurrence, as ameasure of bipartite entanglement. Then, the order parameter and the magnetic -field dependenceof multipartite entanglement in momentum space is calculated. The phase transition is determined,and the behavior of the system based on order parameter is discussed. Furthermore, the phasetransitions of both the Bardeen-Cooper-Schrieffer (BCS) and FFLO states to the normal state arecompared.
S. Soltani,M. Ebrahimian-Hosseinabadi,A. Zargar Kharazi 한국조직공학과 재생의학회 2016 조직공학과 재생의학 Vol.13 No.6
This study aimed at examining and comparing the fabrication process, electrical conductivity, and biological properties of Chitosan/Graphene membranes and poly(D, L-lactic-co-glycolic acid) (PLGA)/Graphene membranes. Nano-composite membranes were made using chitosan or PLGA matrix, and 0.5–1.5 wt.% graphene nano-sheets as the reinforcement material; all the membranes were fabricated through solution casting method. Fourier transform infrared spectroscopy and X-ray diffraction results indicated that the graphene had been uniformly dispersed in polymeric matrix. The membranes with 1.5 wt.% graphene appeared to have the highest value of electrical conductivity among all the examined the membranes and this growth was about 106 in comparison with neat polymers. Since the Chitosan 1.5% graphene membrane was found to have the highest proliferation after 72 hours by MTT [3-(4, 5-di-methylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide] assay of PC12 cell line (p<0.05), it is promising to consider nano-composite membrane for nerve tissue engineering applications.