The multilayer structure of fiber-reinforced polymers may be extracted by ultrasonic pulse-echo inspection. Depending on the employed frequency and subsequent processing methodology, different depth resolution dynamic range can achieved. This study compares performance approaches for extracting ply-by-ply multilayered composites. following methodologies are studied: Method 1: 50 MHz, 15 5 MHz u...

Abstract Made a pioneering attempt to use the lattice sandwich structure in prosthetic foot design and pioneered study for lay-up of foot. An innovative carbon fiber bionic was designed using structure. The effect cross-ply on foot’s energy storage properties vibration characteristics investigated finite element model constructed under normal working conditions according international standards...

To assist in damage tolerant analyses for composites, a compact tension T650/5320 laminate composite was characterized via in-situ X-ray tomography during cyclic loading. A 3D image processing analysis of the fatigue crack growth illustrated various mechanisms, including intralaminar cracking (dominant) and delamination facilitating ply cross-over. finite element conducted to compute change sto...

BACKGROUND For patients with non-small cell lung cancer the TNM staging system and other conventional prognostic factors fail to predict accurately the outcome of treatment and survival. This study attempts to determine the prognostic value for survival of the proportions of CD4+ lymphocytes in the pleural cavity (PLY) of patients with resectable non-small cell lung cancer. METHODS Lymphocyte...