Welding procedures for repairing corroded tubular structures are commonly used; however, composite material repairs becoming popular since they do not use heat sources that might cause accidents. This paper provides a detailed description of the CFRP patch repair application in steel members with circular perforation originated from prolonged corrosion process. The results experimental tests on...

Studies of foam flow in highly permeable porous media are still limited due to foam's complex behavior and discrepancies research. Specifically, it is unclear how flows capillary tubes what the effects material tube diameter are. We have investigated rheology pre-generated tubes. Experiments were carried out using two types tubes: hydrophobic (PTFE – polytetrafluoroethylene; FEP fluorinated eth...

The electronic absorption, circular dichroism and X-ray absorption spectroscopy of the red copper protein nitrosocyanin is simulated with classical molecular dynamics simulations in conjunction with time-dependent density functional theory (TDDFT) and multireference configuration interaction (MRCI) calculations on the active site, with the remainder of the protein and solvent included via point...

The fluting instability has been suggested as the driver of subsurface structure sunspot flux tubes. We conducted a series numerical experiments where we used tubes with different initial curvatures to study effect on spots. MURaM code, which previously simulate complete sunspots, first compute four sunspots in slab geometry and then two circular spots opposite polarities. find that curvature t...

A copper l immunoglobulin complex isolated from a myeloma patient with hypercupremia has been investigated in an attempt to localize and characterize the copper-binding site. Cleavage of the purified IgGl type immunoglobulin with papain yielded peptides which were identified as Fab and F, fragments by immunodiffusion. The fragments were separated by DEAE-cellulose chromatography and the Fab fra...

Thin-walled tube bending is still to be considered a new and advanced technique. The process has been adopted into several industries such as aero and automotive. This process may produce a wrinkling, bulking and tearing phenomenon if the process parameters are inappropriate, especially for tubes with large diameter and thin wall thickness. Push bending process is one of the methods used for be...

We investigate energetics and structure of circular and polygonal single wall carbon nanotubes (SWNTs) using large scale molecular simulations on NAS SP2, motivated by their unusual electronic and magnetic properties. The circular tori are formed by bending tube (n, n) whereas the polygonal tori are constructed by turning the joint of two tubes of (n, n), (n+1, n-1) and (n+2, n-2) with topologi...

In this paper we present a first insight into the cytotoxic action mode of copper(I) iodide or copper(I) thiocyanate complexes with a phosphine derivative of sparfloxacin (a 3rd generation fluoroquinolone antibiotic agent) and 2,9-dimethyl-1,10-phenanthroline or 2,2'-biquinoline as auxiliary ligands. The in vitro cytotoxic activity of the new complexes was tested against two cancer cell lines (...