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This paper presents a two-dimensional particle-based model for the red blood cell, and uses it to compute cell deformation in simple shear and pressure-driven flows. The cell membrane is replaced by a set of discrete particles connected by nonlinear springs; the spring law enforces conservation of the membrane area to a high accuracy. In addition, a linear… (More)

- Majid Mohammad Hosseini, Haley A Starvaggi, Lu-Kwang Ju
- Bioprocess and biosystems engineering
- 2016

A unique oleaginous phagotrophic microalga Ochromonas danica is poised for effective lipid production from waste. Cell harvesting and dewatering are major costs in making algae-based products. In this work an effective additive-free harvesting method was developed, taking advantage of O. danica's comparatively more hydrophobic surface and larger size. The… (More)

Let U be a domain, convex in x and symmetric about the y-axis, which is contained in a centered and oriented rectangle R. If τA is the first exit time of Brownian motion from A and A + = A ∩ {(x, y) : x > 0}, it is proved that P (τU+ > s | τR+ > t) ≤ P (τU > s | τR > t) for every s, t > 0 and every z ∈ U +.

- Narges Moradi-kheibari, H. Ahmadzadeh, Majid Mohammad Hosseini
- Bioprocess and biosystems engineering
- 2017

Lipid extraction is the bottleneck step for algae-based biodiesel production. Herein, 12 solvent mixture systems (mixtures of three non-polar and two polar organic solvents) were examined to evaluate their effects on the total lipid yield from Chlorella vulgaris (C. vulgaris). Moreover, the extraction yields of three solvent systems with maximum extraction… (More)

- Fatemeh Farjadian, Sahar Moradi, Majid Mohammad Hosseini
- Journal of materials science. Materials in…
- 2017

Magnetic nanoparticles have found application as MRI contrasting agents. Herein, chitosan thin films containing super-paramagnetic iron oxide nanoparticles (SPIONs) are evaluated in magnetic resonance imaging (MRI). To determine their contrasting capability, super-paramagnetic nanoparticles coated with citrate (SPIONs-cit) were synthesized. Then, chitosan… (More)

- Effat Souri, Farzaneh Ahmadi, Maliheh Barazandeh Tehrani, Majid Mohammad Hosseini, Sedigheh Fadaye Vatan
- Iranian journal of pharmaceutical research : IJPR
- 2017

Buprenorphine is a partial mu agonist and kappa antagonist which is used for the treatment of pain and opioid addiction. A mixture of buprenorphine hydrochloride and naloxone hydrochloride has been approved for the treatment of opioid dependence. In this study a third order derivative spectrophotometric method based on zero-crossing technique has been used… (More)

Let D be a convex planar domain, symmetric about both the xand y-axes, which is strictly contained in (−a, a) × (−b, b) = Γ. It is proved that, unless D is a certain kind of rectangle, the difference (gap) between the first two eigenvalues of the Dirichlet Laplacian in D is strictly larger than the gap for Γ. We show how to give explicit lower bounds for… (More)

One of the existence mathematical models is Direct Linear Transformation (DLT). These equations are being regarded because of their simplicity as they are direct. When the height distribution of ground control points (GCPs) is inappropriate, height accuracy of DLT is low. This problem was not obvious about rational functions. To assess this case, the… (More)

In this note we introduce a self-interacting random walk in a dynamic random environment, prove that it is recurrent and find its scaling limit. The environment evolves in time in conjunction with the random walk and is nonmarkovian; however we will show that the walk only remembers the recent past. Various models of self-interacting random walks and random… (More)

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