All polymer foams are viscoelastic; for foams used in earplugs, this response is essential to their function. Poisson’s ratio was inferred from viscoelastic response of earplug foam in torsion and bending. Poisson’s ratio increases with frequency as a result of stress induced air flow. Air within the pores contributes to the overall bulk modulus at high frequency, but not at low frequency at wh...

Two-dimensional tin selenide (SnSe) nanosheets were synthesized using a plasma-assisted direct current arc discharge method. The structural characterization indicates that the nanosheets are single-crystalline with an average thickness of ~25 nm and a lateral dimension of 500 nm. The high pressure behaviors of the as-synthesized SnSe nanosheets were investigated by in situ high-pressure synchro...

We explore the phenomenology of a stabilized modulus field in the RandallSundrum scenario. It is found that if the large separation between branes arises from a small bulk scalar mass then the modulus (i.e. radion) is likely to be lighter than the lowest Kaluza-Klein excitations of bulk fields, and consequently may be the first direct signature of the model. Four-dimensional general covariance ...

This work presents an application of the capillary pressure tensiometry (CPT) for accurate measurements of the surface dilatational elastic and loss moduli of the interface between water and transparent oil phases with viscosities up to 10,000mPas. Surface rheological studies involving viscous oils are not possible with other available methods due to the considerable bulk viscous forces. Theore...

The objective of this study was to investigate changes in polymerization stress and elastic modulus for light-cured bulk-fill resin composites following irradiation. Crack analysis was applied to obtain the stresses for 24 h after irradiation, which were calculated from the lengths of cracks in a glass mold bonded to the composites. The elastic modulus was repeatedly measured by nano-indentatio...

Elastic constants like Bulk modulus, Shear modulus and magnetic moment were calculated theoretically using the Birch–Murnaghan equations of state fitted into the equation of state. This data was compared with the experimental data Published by Chen B, Penwell D, Nguyen J H and Kruger M B 2004 Solid State Commun. The experimental data used for comparison was studied by using Energy dispersive X-...

abstract saturated water content is one of the important parameters which its measurement is necessary in estimation of soil water retention and unsaturated hydraulic conductivity curves. in several researches, saturated water content is assumed to be equal to soil total porosity. in some others, its value is estimated by pedotransfer functions using readily available parameters, such as bulk d...

Negative bulk modulus and possibility of loss of elastic stability near tricritical transitions in thin films on substrates A. P. Levanyuk, S. A. Minyukov & I. B. Misirlioglu To cite this article: A. P. Levanyuk, S. A. Minyukov & I. B. Misirlioglu (2016) Negative bulk modulus and possibility of loss of elastic stability near tricritical transitions in thin films on substrates, Ferroelectrics, 5...