in this study, thermoplastic polyolefin elastomeric (tpo) nanocomposites were fabricated by friction stir processing. the effect of different pin geometries on clay dispersion and mechanical properties of the tpo nanocomposite reinforced with 3% wt nanoclay has been first investigated. the optimum pin geometry namely threaded cylindrical pin was then used to fabricate the nanocomposites contain...

OBJECTIVE To study whether shortening the acquisition time for selective hepatic artery visualization is feasible without image quality deterioration by adopting two-dimensional (2D) parallel imaging (PI) and short tau inversion recovery (STIR) methods. MATERIALS AND METHODS Twenty-four healthy volunteers were enrolled. 3D true steady-state free-precession imaging with a time spatial labeling...

An innovative friction stir processing variant, named Upward Friction Stir Processing (UFSP), for producing customized materials with multifunctional particles is presented. In the UFSP, an upward ...

A 30-year-old man was admitted unconscious to a peripheral hospital after consuming 120 mg of methadone to celebrate his release from prison. On arrival his creatinine was 1.93 mg/dl and his creatine kinase 68645 (IU/l). After reversal of his opiate intoxication, he began complaining of burning pain and weakness in both legs. Over the next 36 h his creatinine increased to 11.4 mg/dl with worsen...

Introduction: Uniform fat signal suppression is often difficult to achieve in a 3.0 Tesla MR system due to magnetic field inhomogeneity and/or B1 inhomogeneity. DWIBS [1] has been proposed as a new method of diffusion MRI that suppresses background signal. In DWIBS, non-negligible fat signals often remain after fat suppression methods are used and the residual fat signals often considerably deg...

in this study, friction stir spot welding (fssw) is applied to join the tial6v4 titanium alloy with 1.5 mm thickness and then the effect of rotational speed and tool dwell time on microstructure and mechanical properties is investigated. in this regard, the speed of the tool rotation was considered as 800, 1000, and 1200 rpm, as well as the tool dwell time was set at 7 and 12s. microstructural ...

in this paper, hardness and tensile properties of welded zone of aluminum 1100 alloys by friction stir welding process was investigated and the effects of rotational and traverse speeds of tool on these parameters was studied. also the fracture cross-section of welded samples was investigated. according the results of this paper, the hardness of weld material is higher than base material and is...

The purpose of this study was to determine whether delayed gadolinium-enhanced magnetic resonance imaging of cartilage (dGEMRIC) and T2 mapping are accurate techniques for measuring cartilage thickness in the metacarpus3/metatarsus3 (Mc3/Mt3) of Thoroughbred racehorses. Twenty-four Mc3/Mt3 cadaver specimens were acquired from six healthy racehorses. Cartilage thickness was measured from postint...

INTRODUCTION: Assessment of N-stage is very important for management in non-small cell lung cancer (NSCLC) patients. FDG-PET/CT can assess morphological and metabolic information at same time, and widely utilized in this setting. In the last decade, short inversion time inversion recovery (STIR) turbo spin-echo (SE) imaging has been determined at least as valuable as PET/CT for N-stage assessme...

Friction stir welding (FSW) is a relatively new solid-state joining process. This joining technique is energy efficient, environment friendly, and versatile. In particular, it can be used to join high-strength aerospace aluminum alloys and other metallic alloys that are hard to weld by conventional fusion welding. FSW is considered to be the most significant development in metal joining in a de...