Thick-film screen-printed fine-line metallization is one of the most important process steps in whole production chain photovoltaic cell manufacturing as variations industrial solar performance mainly depend on electrode properties. The impact Ag powder surface topography viscoelastic characteristics and geometry electrodes studied. Numerical simulations for concentrated non-Brownian suspension...

Mud is a suspension of fine-grained particles (sand, silt, and clay) in water. The interaction clay minerals mud gives rise to complex rheological behaviors, such as yield stress, thixotropy, viscoelasticity. Here, we experimentally examine the flow behaviors kaolinite suspensions, model mud, using steady shear rheometry. curves exhibit both stress hysteresis for various volume fractions ([Form...

The negative environmental impacts of Portland cement as a binder in the construction industry have created growing impetus to develop sustainable alternative binders. Various types clay been considered potential replacements. impact clays replacement depends on dosage and treatment methods. This paper presents comprehensive review determine effects different fresh hardened properties concrete ...

We have tested the mechanical properties of isolated canine pericardium at 37°C in Hanks' solution, and compared those results with similar tests on tissue at room temperature, both in Hanks' solution and merely kept moist with saline. Pericardium, which is nearly isotropic due to the layers of collagen aligned in different directions, is a composite material made up of collagen and elastin fib...

Overhand throwing places high loads and stresses on the joints and tissues of the shoulder and arm. As a result, throwing athletes regularly demonstrate altered shoulder internal and external ranges of motion where internal rotation (IR) is decreased and external rotation is increased in the dominant arm when compared with the nondominant arm. This alteration can exist as a result of alteration...

Ascorbic acid (AA), or vitamin C, is widely used in the pharmaceutical, cosmetic and food industries as an antioxidant and cosmetics containing AA have been gaining popularity in the last few years for the treatment of photoageing. To solve the problem of its low stability, some esters have been synthesised, such as magnesium ascorbyl phosphate (MAP), also available encapsulated in collagen-bas...

1. A modified falling ball viscometer (rolling ball viscometer) for blood and other humors is presented. It is capable of easily measuring flow properties at several stresses, as is required to define satisfactorily the properties of anomalous flow systems. At high shearing stresses, apparent specific viscosity values of 2.5 + are observed, corresponding to 2.2 +/-0.2 reported as possible with ...

A microporous hydrogel was developed using sodium alginate (alg) and 4-aminosalicylic acid (4-ASA). The synthesized hydrogel was characterized using various analytical techniques such as Fourier transform infrared spectroscopy (FTIR), Carbon-13 nuclear magnetic resonance (13C-NMR), X-ray powder diffraction (XRD), scanning electron microscopy (SEM), and differential scanning calorimetry (DSC). A...

A great variety of instruments, methods and models to study hemorheological parameters under conditions close to physiological are currently used. An overview of the factors, determining hemorheological properties and models, describing the relationship between shear stresses, shear rate, viscosity and hematocrit is presented. Time dependent properties – blood thixotropy and viscoelasticity and...