BACKGROUND Cardiac positron emission tomography (PET) can lead to flow impairment quantification using PET coronary flow reserve (CFRp: ratio of stress flow to rest flow) and is superior to the current standard, single-photon emission computed tomography. In this study, our first aim was to assess the benefit of CFRp in place of invasive CFR (CFRi) by comparing the correlations of each of the i...

cfrp composites have unique application qualities such as high resistance and durability to environmental conditions, having relatively low weight and easy to install in strengthening concrete structure elements. the brackets should be strengthen sufficiently if they are not calculated and implemented well. application of the cfrp is one of the methods for such purposes. the study involves usin...

Tsai's Modulus, an invariant of the stiffness tensor Q , and unit circle failure criterion, a strain normalized envelope, can both be used in preliminary design. Modulus to predict elastic properties material while likely material. However, date influence these approaches on each other has not yet been established. In addition, predictions have compared with well-established criteria or experim...

Abstract The axial compressive bearing capacity, failure modes, and mechanisms of carbon fiber-reinforced aluminum laminate (CARALL) columns with single-channel cross sections were studied in detail. In this study, two types short CARALL specimens a 5/4 configuration first fabricated using 2024-T3 alloy different fiber orientations ([0°/90°/0°] 3 , [45°/0°/−45°] ) via pressure-molding thermal-c...

This work focuses on the rapid determination of Acoustic Emission (AE) wave propagation velocity in composite laminate and sandwich structures using a closed-form formula. Firstly, classical model proposed literature is extended to determine acoustic any direction or structure; then corrective factor has been defined improve calculation accuracy; finally, parameter, called correlation ratio int...

Strut-and-tie model (STM) method evolved as one of the most useful designs for shear critical structures and discontinuity regions (D-regions). It provides widespread applications in the design of deep beams as recommended by many codes. The estimation of bottle-shaped strut dimensions, as a main constituent of STM, is essential in design calculations. The application of carbon fibre reinforced...