OBJECT Tissue engineering appears to be a promising strategy for articular cartilage regeneration as a treatment for facet joint arthritis. Prior to the commencement of tissue engineering approaches, design criteria must be established to determine the required functional properties of the replacement tissue. As characterization of the functional properties of facet joint cartilage has not been...

We investigate the reddening and Main Sequence fitted distances to eleven young, Galactic open clusters that contain Cepheids. Each cluster contains or is associated with at least one Cepheid variable star. Reddening to the clusters is estimated using the UB:B-V colours of the OB stars and the distance modulus to the cluster is estimated via B-V:V and V-K:V colour-magnitude diagrams. By main-se...

By Timothy Michael Sullivan, M.S. Washington State University August 2004 Chair: David F. Bahr The transverse piezoelectric properties of thin piezoelectric films were measured using the rectangular membrane method (RMM) developed at Washington State University. This method was compared with other methods from literature performed at WSU. The measured properties were used to evaluate piezoelect...

Bio-impedance Analysis had been used in the medical field and research with over 70 years. This technique enable a non-invasive and low-cost diagnosis of a wide range of cardiovascular pathology. It permits the access to impedance changes caused by pathophysiological processes in living tissue and allows to the diagnosis several vascular anomalies such as arterial and venous diseases (stenosis,...

In this study, Nickel-Chrome-Molybdenum alloy is manufactured using investment casting method with centrifugal device from a polyurethane foam model in regular and open-pore form, as hard tissue implant. The samples produced have 10, 20, 30 (±3) pores per inch 0.0008, 0.0017, 0.0027 g/mm3 densities, respectively. Young’s modulus, hardness mechanical behaviors of the were investigated by SEM, ED...

An exact method is developed for computing the height of an elastic medium subjected to centrifugal compression, for arbitrary constitutive relation between stress and strain. Example solutions are obtained for power-law media and for cases where the stress diverges at a critical strain--for example as required by packings composed of deformable but incompressible particles. Experimental data a...

application of supramolecular polymer blending in preparation of materialswith adjustable mechanical properties is addressed. it is anticipated that the microstructure and properties of polymer blends are drastically controlled by the inter-molecular interactions. on this basis, the effect of strongly dimerising ureidopyrimidinone end groups (upy) with the capability of quadruple hydrogen bondi...

We hypothesized that age-linked changes in the composition and elastic properties of the arterial wall occur earlier in hypertensive than in normotensive rats. We evaluated the consequences of hypertension and aging on aortic mechanics, geometry, and composition in 3-, 9-, and 15-month-old awake Wistar-Kyoto rats (WKY) (normotensive) and spontaneously hypertensive rats (SHR) (hypertensive). The...

This paper investigates the influence of material properties on the performance of an optical fiber wound mandrel composite fiber optic interferometer mandrel by using the ANSYS Cad tool, The acoustic sensitivity of an optical fiber considered analytically, High sensitivity obtained with low young modulus, very thick polymer coatings. The thick coating realized by embedding optical fiber in pol...

AIMS To establish a non-destructive method of characterising the mechanical properties of collagen hydrogels to model corneal tissue and to examine the effect of photochemical crosslinking on their mechanical properties. METHODS Collagen hydrogels were manufactured, submerged in 0.1% riboflavin solution and crosslinked using two UVA tube bulbs with an intensity of between 2.8 and 3.2 mW/cm(2)...