The light weight of magnesium alloys makes them a promising material in different potential industries, such as aerospace and automobile. In addition, are attractive materials for biomedical applications due to their biocompatibility with the human body. these structural parts require an understanding fatigue behavior because they usually subjected time-varying loading. Furthermore, notches ine...

This paper presents an E-ring shaped printed monopole antenna for UWB applications with dual notched bands performance. In order to generate single frequency band notch function, we applied a U-ring shaped monopole antenna, and by inserting a rectangular ring in the centre of it an E-ring shaped radiating patch created and a dual band-notch function can be achieved. The measured bandwidth of th...

myocardial fractional flow reserve (ffr) is a new index of the functional significance of intermediate coronary stenoses that is calculated from pressure measurements made during coronary arteriography. the aim of this study was to evaluate the correlation between non-hyperemic coronary pressure dicrotic notch and fractional flow reserve (ffr). a consecutive of 114 patients (73 men and 41 women...

High-strength steels (HSSs) with nominal yield stress not less than 460 MPa have been increasingly employed in bridge structures. Compared SM490 normal-strength steel (NSS), HSSs, including SBHS500 and SM570, higher strength but lower ductility, brittle fracture can easily occur the HSSs members notches. Therefore, 48 tension specimens U-notch or V-notch made of SBHS500, SM570 structural are ca...

In regards to the problem of tubing precision separation, high-efficiency separation method for under eccentric wheel high-speed rotational bending fatigue loading is proposed, which aims promote initiation cracks at root annular V-notch on surface. Research stress concentration effect notch surface carried out. The design takes into account characteristics separation. numerical simulation calc...

Ali Khounsary Advanced Photon Source Argonne National Laboratory Argonne,IL60649 The high heat load associated with the powerful and concentrated x-ray beams generated by insertion devices (IDs) at a number of present and many of the future (planned or under construction) synchrotron radiation facilities poses a formidable engineering challenge for the design of monochromators and other optical...

Arrays of dual-sensor and four-sensor needle conductance probes have been used to measure the mean and time dependent local properties of upward inclined, bubbly oil-in-water flows (also known as dispersed oil-in-water flows) in a 153mm diameter pipe. The flow properties that were measured were (i) the local in-situ oil volume fraction α ; (ii) the local oil velocity o u in the axial direction ...

The morphology of the suprascapular notch has been associated with suprascapular entrapment neuropathy, as well as injury to the suprascapular nerve in arthroscopic shoulder procedures. This study aimed to describe the morphology and morphometry of the suprascapular notch. The suprascapular notch in 138 scapulae was classified into six types based on the description by Rengachary. The suprascap...