Blood vessel elasticity is important to physiology and clinical problems involving surgery, angioplasty, tissue remodeling, engineering. Nonlinearity in blood vivo the formation of solitons arterial pulse waves. It well known that stress–strain relationship nonlinear general, but a controversy exists on how it physiological range. Another whether wall biaxially isotropic. New data canine aorta were obtained from biaxial testing machine over large range finite strains referred zero-stress...

In order to determine the stress-strain relationship of inner (intima and media) outer (adventitia) layers blood vessels in neighborhood zero-stress state, bending experiments were performed on aortic strips rats. experiments, one end a strip was clamped, force applied other end. The deflection curves measured. By regarding as curved beam, classical beam theory employed analyze strain distribution from experimental data. A computer program dealing with nonlinear equations least squares...

With few exceptions, experimental results on the blood vessel elasticity have been analyzed with wall treated as a homogeneous material, probably because experiments limited to inflation and stretching. To advance subject, we must evaluate force-deformation relationship of different layers vessel. A key strategy do this is study nonaxisymmetric deformation so that may deform in amounts at places. One most effective deformations can be imposed bending. The first important question ask about...

Changes in the mechanical properties of a blood vessel when it remodels itself under stress are reviewed. One recent findings about vessels is rapidity tissue remodeling pressure changed. When structure and material composition remodel, zero-stress state changes. The change also process. If elastic behavior expressed terms pseudo-elastic strain-energy function, then constants function will course remodeling. With all these changes taking place, scope constitutive equations broadens: should...

The immunologic factors are the chief reason for recurrent pregnancy loss (RPL) and induction of maternal-fetal tolerance is main treatment this cause RPL, but effect method uncertainly needs multiple doses and/or interventions. aim study was to investigate whether a single administration transforming growth factor-β1 (TGF-β1) can improve outcomes RPL mice improvement by TGF-β1 driving expression immune molecule indoleamine 2,3-dioxygenase (IDO). In experimental study, 40 model were equally...

This study explores the thermodynamic and kinetic properties of CeO2 nano-fuels, with a particular focus on influence nanoparticle additives diffusion thermal conductivity C14-based fuel systems. Using molecular dynamics simulations COMPASS force field, we model interactions between C14 molecules nanoparticles, varying size concentration. Our results reveal that inclusion nanoparticles leads to significant enhancements in both (increasing by 9.8–23.6%) coefficients approximately 140%) within...

Metallic oxides are promising electrochemically active materials which can supply large energy density and capacitance, while always suffer from weak electrical conductivity structural stability. Herein, a green low-tortuosity wood-derived anisotropic carbon is developed to stabilize CuO improve its conductivity. The low tortuosity surface area of capable act as an electrolyte storage fast transport channels for the ionic migration, verified by kinetic analysis. As expected, composite...

Breast and lung cancers are the leading causes of mortality most frequently diagnosed in women men, respectively, worldwide.Although antitumor activity chalcones has been extensively studied, molecular mechanisms isoliquiritigenin analog 2', 4', 4-trihydroxychalcone (metochalcone; TEC) against carcinomas remain less well understood.In this study, we found that TEC inhibited cell proliferation breast cancer BT549 cells A549 a concentration-dependent manner.TEC induced cycle arrest S-phase,...

In the pursuit of understanding oxidation mechanisms hydrogenated biodiesel fuels and elucidating combustion behavior biomass when blended with diesel, this study presents a comprehensive investigation into reaction mechanism biodiesel–ethanol–diesel mixtures. We develop encompassing 187 components 735 reactions for Through kinetics analysis under varied conditions, including 1.0 MPa pressure, an equivalence ratio 1.0, temperatures 900 K 1400 K, we explore impact cross-reactions changing...

The formation of the dry band has great influence on electric field distribution along insulator, which will result in partial arc as well flashover. In order to investigate characteristics under different conditions, a three-dimension model polluted insulator is established this paper. formation, location, width and number its effect potential are investigated based analysis using finite element method. results show that there be obvious distortion when appears surface insulator. maximum...

ZnO loaded carbon nanofibers (ZnO/CNFs) were successfully fabricated by a combination of electrospinning, carbonization and hydrothermal process. A novel biosensor was based on composite ZnO/CNFs, laccase (Lac), Nafion. The addition ZnO/CNFs apparently facilitated the direct electron transfer (DET) between active center Lac surface glassy electrode (GCE). pair stable well-defined redox peaks observed Nafion–Lac–ZnO/CNF modified GCE. Meanwhile, square wave voltammetry (SWV) employed to...

The highly crystallized molecular structure of polyvinyl alcohol (PVA) makes the polymer with poor performance in mechanical strength and water resistance. To modify PVA to diminish complicated procedures environmental impacts, ferric ions (in ion composite form) have been used set interactions molecule chains PVA. crystallinity, chemical groups change, has confirmed by X-ray diffraction (XRD), Fourier transform infrared spectroscope (FTIR), bonding/membrane tensile test. crystallinity is...

The pulsed flashover strength of epoxy composite material in vacuum is related to the level, electrode material, relative dielectric constant, and surface charging quantity sample. By using a high power single pulse generator (65ns rise time, 600ns half-height width time 10-4Pa ultimate level), characteristics epoxy/Al2O3·3H2O are studied by fingertype with different materials (brass, duralumin stainless steel). In case steel-stainless steel system, experiments under level investigated....