The purpose of this study was to gain more information on the structure of different layers of renal arteryand comparing these structures in post-natal male and female sheep. To do so, right and left renal arteries of6 adult and 6 newborn animals were dissected; the middle parts of arteries were only collected. After tissueprocessing using paraffin embedding method, 5–6-μm sections were cut and...

We report a simple method for the micro-nano integration of flexible, vertically aligned multiwalled CNT arrays sandwiched between a top and bottom carbon layer via a porous alumina (Al(2)O(3)) template approach. The electromechanical properties of the flexible CNT arrays have been investigated under mechanical stress conditions. First experiments show highly sensitive piezoresistive sensors wi...

Abstract This work investigated the impact that processing of hemp ( C. sativa L.) fibre has on mechanical properties unidirectional fibre-reinforced epoxy resin composites loaded in axial tension, and particleboard reinforced with aligned bundles applied to one surface panel. For this purpose, mechanically processed (decorticated) un-processed bundles, obtained from retted un-retted stems, wer...

The evolution of the thermal conductivities of the unidirectional, 2D woven and 3D braided composites during the CVI (chemical vapor infiltration) process have been numerically studied by the finite element method. The results show that the dual-scale pores play an important role in the thermal conduction of the CVI-densified composites. According to our results, two thermal conductivity models...

Copperand yttrium-rich YBa2Cu307 bulk superconductors have been prepared by mixing copper oxide or yttrium oxide in nitric acid and adding the solution to premade stoichiometric YBa2Cu307 followed by annealing. In contrast to materials made by mixing oxide powders, both samples contain copper-rich defects spread homogeneously throughout the grains, either small platelet copper oxide precipitate...

High aspect ratio nanotubular assemblies can be effective fillers in mechanically reinforced composite materials. However, most existing nanotubes used for structural purposes are limited in their range of mechanical, chemical, and biological properties. We demonstrate an alternative approach to mechanical reinforcement of polymeric systems by incorporating synthetic D,L-cyclic peptide nanotube...

We study quotients of multi-graded bundles, including double vector bundles. Among other things, we show that any such quotient fits into a tower affine Applications the theory include construction normal bundles for weighted submanifolds, as well pairs submanifolds with clean intersection.

1. Root Space Decompositions 2 2. Weights 5 3. Weyl Group 8 4. Irreducible Representations 11 5. Basic Concepts of Vector Bundles 13 6. Line Bundles 17 7. Curvature 20 7.1. Curvature of tangent bundles 22 7.2. Curvature of line bundles 24 7.3. Levi curvature 25 8. Ampleness Formulas 27 8.1. Ampleness of irreducible bundles 28 8.2. Ampleness of tangent bundles 29 9. Chern Classes 32 9.1. Chern c...