The electric thermal noise has been measured in two aging materials, a colloidal suspension (Laponite) and a polymer (polycarbonate), presenting very slow relaxation towards equilibrium. The measurements have been performed during the transition from a fluid-like to a solid-like state for the gel and after a quench for the polymer. For both materials we have observed that the electric noise is ...

The ever-increasing interest in retaining a youthful physical appearance has facilitated the development of various minimally invasive dermatological techniques. The use of intradermal fillers can be incorporated into dermatological practices with minimal overhead costs. This strategy addresses facial volume loss and dynamic lines, which are the main features of facial aging. Moreover, intrader...

Computer graphics is used in a wide variety of familiar applications, ranging from abstract representations of statistical and scientific data to synthetic characters in feature films and games. One important sub-area of computer graphics is the generation of realistic images. A key component in generating realistic images is creating digital models of the appearance attributes of the materials...

Aging phenomena have been studied in very different materials like polymers, supercooled liquids or disordered orientational crystals. We recall here the main features of aging in spin glasses, and use this example of magnetic systems as a guideline for the description of the others. A particular attention is put on the sensitivity of aging to the cooling rate and to temperature variations. Thi...

Non-contact metallization processes, such as aerosol jet printing, allows for the deposition and novel processing of nanoparticle based conductive circuitry. The primary advantages in the utilization of such methods include the minimization of substrate handling and the exploitation of nanomaterial‟s ability to form electrically conductive pathways at temperatures as low as 80°C. Applying non-c...

The purpose of this article was to review the changes in translucency of direct esthetic restorative materials after curing, aging and treatment. As a criterion for the evaluation of clinical translucency changes, visual perceptibility threshold in translucency parameter difference (ΔTP) of 2 was used. Translucency changes after curing were perceivable depending on experimental methods and prod...

NDT is mainly discussed as an engineering technology to detect, classify and size material imperfections, called material defects. Lattice defects and microstructure inhomogeneities like vacancies, dissolved atoms dislocations and precipitations are normally not discussed as defects but they are influence parameters which mainly predict the macroscopic properties, the physical properties as wel...

We explore the origins of slow dynamics, aging and glassy rheology in soft and living matter. Non-diffusive slow dynamics and aging in materials characterised by crowding of the constituents can be explained in terms of structural rearrangement or remodelling events that occur within the jammed state. In this context, we introduce the jamming phase diagram proposed by Liu and Nagel to understan...

We present an effective time approach to predict long and short time rheological behavior of soft glassy materials from experiments carried out over practical time scales. Effective time approach takes advantage of relaxation time dependence on aging time that allows time-aging time superposition even when aging occurs over the experimental time scales. Interestingly, experiments on a variety o...

the bem is applied to the solution of the torsion problem of non-homogeneous anisotropic non-circular prismatic bars. the problem is formulated in terms of the warping function. this formulation leads to a second order partial differential equation with variable coefficients, subjected to a generalized neumann type boundary condition. the problem is solved using the analog equation method (aem)...