4.5 Article

Computational analysis of the blood hemodynamic inside internal cerebral aneurysm in the existence of endovascular coiling

Related references

Note: Only part of the references are listed.
Article Computer Science, Interdisciplinary Applications

Numerical simulation of blood flow effects on rupture of aneurysm in middle cerebral artery

Xiao-Yong Shen et al.

Summary: This research used computational fluid dynamics to investigate the rupture and growth of intracranial aneurysms in the middle cerebral artery. The study revealed the significant influence of blood viscosity and velocity on the danger of aneurysm rupture, with outcomes showing the direct impact of aneurysm location and orientation on its growth.

INTERNATIONAL JOURNAL OF MODERN PHYSICS C (2022)

Article Physics, Multidisciplinary

Impact of new multiple twisted tapes on treatment of solar heat exchanger

M. Sheikholeslami et al.

Summary: This study investigates the influence of helical tapes on nanofluid turbulent flow in solar flat plate collectors and evaluates the impact of twisted tap (TT) and inlet velocity on the thermal efficiency and Darcy factor of the nanofluid flow. The results suggest that using twisted tapes significantly improves heat transfer efficiency.

EUROPEAN PHYSICAL JOURNAL PLUS (2022)

Article Computer Science, Interdisciplinary Applications

Numerical study of droplet breakup in an asymmetric T-junction microchannel with different cross-section ratios

Milad Isanejad et al.

Summary: In this study, numerical simulations are performed to investigate droplet breakup in an asymmetric T-junction microchannel. The results show good agreement with previous studies, and the effects of capillary number, non-dimensional droplet length, and non-dimensional width ratio on the breakup time and splitting ratio are studied. It is also found that the mass center of the mother droplet is shifted to a wider branch, facilitating the asymmetric breakup in the T-junction microchannel.

INTERNATIONAL JOURNAL OF MODERN PHYSICS C (2022)

Article Thermodynamics

Thermal improvement of linear Fresnel solar system utilizing Al2O3-water nanofluid and multi-way twisted tape

M. Sheikholeslami et al.

Summary: In this study, the thermal treatment of Linear Fresnel Reflector (LFR) unit was enhanced by the application of multi-way twisted tape (MWTT). Finite volume simulations were used to predict the flow and thermal performance, and SolTrace and ANSYS FLUET were used to extract the distribution of absorb flux. The results showed that the rotation, width, and number of wings of the twisted tape significantly affected the fluid flow and thermal efficiency.

INTERNATIONAL JOURNAL OF THERMAL SCIENCES (2022)

Article Mathematics

Convergence to nonlinear diffusion waves for a hyperbolic-parabolic chemotaxis system modelling vasculogenesis

Qingqing Liu et al.

Summary: This paper investigates a quasi-linear hyperbolic-parabolic system modeling vasculogenesis, showing the existence of a nonlinear diffusion wave under suitable structural assumptions on the pressure function. The study demonstrates that the solution of the system will locally and asymptotically converge to this wave if the wave strength is small. Additionally, using time-weighted energy estimates, it is further proven that the convergence rate of the nonlinear diffusion wave is algebraic.

JOURNAL OF DIFFERENTIAL EQUATIONS (2022)

Article Green & Sustainable Science & Technology

Hydrothermal analysis for a parabolic solar unit with wavy absorber pipe and nanofluid

M. Sheikholeslami et al.

Summary: This article presents a numerical simulation for the thermal analysis of a parabolic trough collector (PTC) with a wavy absorber tube using the finite volume method. The study investigates the performance of a new wavy absorber tube in a solar system with a parabolic reflector. The results show that increasing the Reynolds number (Re) and the volume concentration can improve the heat transfer efficiency.

RENEWABLE ENERGY (2022)

Article Chemistry, Multidisciplinary

Serum Metal Ion-Induced Cross-Linking of Photoelectrochemical Peptides and Circulating Proteins for Evaluating Cardiac Ischemia/Reperfusion

Panpan Hao et al.

Summary: Patients who have experienced the ischemia-reperfusion process are at a higher risk of subsequent heart attacks. A novel assay using synthetic small molecules for detecting free copper ions and cathepsin G in serum has shown potential for evaluating the severity and prognosis of cardiac ischemia/reperfusion.

ACS SENSORS (2022)

Article Biotechnology & Applied Microbiology

Influence of novel turbulator on efficiency of solar collector system

M. Sheikholeslami et al.

Summary: This article introduces a method to improve the efficiency of solar energy systems by using hybrid nanomaterials and special shape of turbulator in the pipe. The study found that inserting turbulator can increase radial velocity, disrupt isotherms, and enhance convective flow. Experimental results demonstrate the improvement of the performance of solar energy systems with this approach.

ENVIRONMENTAL TECHNOLOGY & INNOVATION (2022)

Article Multidisciplinary Sciences

Influence of the coiling porosity on the risk reduction of the cerebral aneurysm rupture: computational study

Armin Sheidani et al.

Summary: This study comprehensively investigates the effects of blood hemodynamics on the creation and growth of internal carotid artery aneurysms using computational fluid dynamics. The study compares OSI and WSS of the aneurysm wall at different blood flow stages and explores the impact of blood viscosity and coiling treatment on these factors.

SCIENTIFIC REPORTS (2022)

Article Chemistry, Multidisciplinary

Engineered extracellular vesicles and their mimetics for cancer immunotherapy

Chunping Liu et al.

Summary: Extracellular vesicles (EVs) are membranous vesicles secreted by living cells, serving as intermediaries for intercellular communication and molecular transfer. Recent studies have shown that EVs can regulate tumor occurrence and development by transferring molecules and have broad application prospects in immunotherapy. The breakthrough of nanotechnology promotes the development and exploration of engineered EVs for immune-targeted therapy.

JOURNAL OF CONTROLLED RELEASE (2022)

Article Biochemistry & Molecular Biology

Cardiomyocyte-specific knockout of ADAM17 ameliorates left ventricular remodeling and function in diabetic cardiomyopathy of mice

Fei Xue et al.

Summary: This study found that ADAM17 activity and ACE2 shedding were enhanced in diabetic cardiomyopathy (DCM). Cardiomyocyte-specific knockout of ADAM17 mitigated cardiac fibrosis, cardiomyocyte apoptosis, and improved cardiac function in DCM mice. The mechanism may involve activated AMPK pathway, increased autophagosome formation, and improved autophagic flux.

SIGNAL TRANSDUCTION AND TARGETED THERAPY (2022)

Article Thermodynamics

Investigation of nanomaterial flow through non-parallel plates

Tran Dinh Manh et al.

Summary: The study utilized analytical approach and numerical techniques to investigate the influence of nanomaterials on MHD flow in non-parallel plates, revealing that the hydraulic boundary layer thickness decreases with the increase of Reynolds number and increases with the increase of Hartmann number.

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY (2021)

Article Thermodynamics

Computational simulation of variable magnetic force on heat characteristics of backward-facing step flow

Tran Dinh Manh et al.

Summary: This study uses the Finite Volume Method to simulate the thermal performance of nanofluids under non-uniform magnetic fields, finding that the addition of magnetic sources can significantly increase local heat transfer.

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY (2021)

Article Computer Science, Interdisciplinary Applications

Injection of hydrogen sonic multi-jet on inclined surface at supersonic flow

Amin Hassanvand et al.

Summary: The study investigates the effects of multiple hydrogen jets on an inclined surface in supersonic airflow, finding that mixing performance improves at high jet pressure and with increasing angle of the exterior surface. The study also highlights the significant impact of power and slant of the separation shock on the size of the mixing zone.

INTERNATIONAL JOURNAL OF MODERN PHYSICS C (2021)

Article Biology

Cerebral aneurysm flow diverter modeled as a thin inhomogeneous porous medium in hemodynamic simulations

Armin Abdehkakha et al.

Summary: A novel approach of modeling FD flow modification as thin inhomogeneous porous medium (iPM) was proposed in this study. It improved upon classic PM methods by treating FD as a thin screen and calculating pressure drop cell-by-cell using local FD geometric parameters. The iPM CFD simulations ran 500% faster than explicit CFD with 94%-99% accuracy, showing promise as a clinical modeling tool for endovascular interventions with FD and stents.

COMPUTERS IN BIOLOGY AND MEDICINE (2021)

Article Physics, Multidisciplinary

Computational study of blood flow characteristics on formation of the aneurysm in internal carotid artery

Xiao-Yong Shen et al.

Summary: The study utilized computational simulations to uncover the effects of blood flow characteristics on the evolution and rupture of aneurysms in the internal carotid artery. The research aimed to identify the main causes for aneurysm rupture and pinpoint high-risk regions on the aneurysm wall. Findings suggest that aneurysm growth is directly related to its orientation and location, with internal wall shear stress being significantly lower than external stress.

EUROPEAN PHYSICAL JOURNAL PLUS (2021)

Article Biology

Efficient parallel simulation of hemodynamics in patient-specific abdominal aorta with aneurysm

Shanlin Qin et al.

Summary: This paper presents a highly parallel algorithm for numerical simulation of patient-specific abdominal aortic unsteady blood flows before and after aneurysm repair, significantly reducing simulation time. The parallel efficiency of the proposed method reaches near 70% on a parallel computer.

COMPUTERS IN BIOLOGY AND MEDICINE (2021)

Article Computer Science, Interdisciplinary Applications

Effects of blood flow characteristics on rupture of cerebral aneurysm: Computational study

Xiao-Yong Shen et al.

Summary: Cardiovascular disease and stroke have been identified as the leading causes of high death rates in recent decades, with irregular blood flow being a major factor. The study reveals that blood viscosity and velocity have a significant impact on the blood flow inside an aneurysm, with high velocity and viscosity increasing the risk of aneurysm rupture.

INTERNATIONAL JOURNAL OF MODERN PHYSICS C (2021)

Article Mathematics, Applied

Boundary layer flow pattern of heat and mass for homogenous shear thinning hybrid-nanofluid: An experimental data base modeling

Mohsan Hassan et al.

Summary: The study examines the boundary layer flow problem for non-Newtonian hybrid nanofluid over a moving wedge, with a focus on the velocity and temperature profiles at different nanoparticles volume fractions. Results show that an increase in nanoparticle volume fraction leads to a reduction in velocity profile and an increase in displacement and momentum thicknesses. The study also calculates the deflation in mass flow rate and momentum flux due to boundary layer growth.

NUMERICAL METHODS FOR PARTIAL DIFFERENTIAL EQUATIONS (2021)

Article Thermodynamics

Application of neural network on heat transfer enhancement of magnetohydrodynamic nanofluid

M. Barzegar Gerdroodbary

HEAT TRANSFER-ASIAN RESEARCH (2020)

Article Computer Science, Interdisciplinary Applications

Transient nanofluid squeezing cooling process using aluminum oxide nanoparticle

Iskander Tlili et al.

INTERNATIONAL JOURNAL OF MODERN PHYSICS C (2019)

Article Computer Science, Interdisciplinary Applications

Impact of uncertainties in outflow boundary conditions on the predictions of hemodynamic simulations of ascending thoracic aortic aneurysms

A. Boccadifuoco et al.

COMPUTERS & FLUIDS (2018)

Review Biophysics

Mechano-biology in the thoracic aortic aneurysm: a review and case study

G. Martufi et al.

BIOMECHANICS AND MODELING IN MECHANOBIOLOGY (2014)

Article Computer Science, Interdisciplinary Applications

Impedance-based outflow boundary conditions for human carotid haemodynamics

M. Malve et al.

COMPUTER METHODS IN BIOMECHANICS AND BIOMEDICAL ENGINEERING (2014)

Article Mechanics

Hemodynamics of Cerebral Aneurysms

Daniel M. Sforza et al.

Annual Review of Fluid Mechanics (2008)

Article Biophysics

Validation of CFD simulations of cerebral aneurysms with implication of geometric variations

Yiemeng Hoi et al.

JOURNAL OF BIOMECHANICAL ENGINEERING-TRANSACTIONS OF THE ASME (2006)