A surface-mounted chirped fibre Bragg grating (CFBG) sensor has been used for the first time to monitor delamination growth within a composite material (a transparent, unidirectionally reinforced glass fibre/epoxy resin double-cantilever beam (DCB) specimen). The specimens were tested using a constant displacement rate, with the delamination length being measured using complementary techniques:...

A review of randomized controlled trials and observational cohort studies found in the PubMed, Embase, Cochrane databases through April 2021. In 26 comprising 26,845 patients who were treated by uncoated balloon (UCB) (17,770) or drug-coated (DCB) (9075) angioplasty for lower extremity peripheral arterial disease (LE-PAD), DCB was associated with significantly vessel restenosis, reduction major...

For the evaluation of double cantilever beam (DCB) test several approaches are applicable that can provide different results. This ambiguity significantly affect numerical models which refer to experimentally obtained material parameters. In this work, for presented. It is shown equations derived from theory give reasonable results and good agreement between experiments, analytical solutions. c...

The mode I interlaminar fracture toughness of stitched and unstitched composite laminates of continuous UD flax fiber and epoxy matrix was experimentally and numerically investigated. A twistless flax fiber yarn was used for stitching purpose. The mode I interlaminar energy release rate of the unstitched and stitched laminates was experimentally determined through Double Cantilever Beam (DCB) t...

Laboratory experiments have been conducted to elucidate the photochemical behavior of 3,3'-dichlorobenzidine (DCB) and its congeners in aquatic systems. Photodechlorination of DCB was observed in aqueous samples that were irradiated with monochromatic radiation from a variable-wavelength laser at several wavelengths in the range 300 nm < or = lambda < or = 360 nm. Analytical measurements perfor...

The fracture behaviour of human cortical bone was analysed considering a miniaturized version of the Double Cantilever Beam (DCB) test. A specific data reduction scheme based on crack equivalent concept was used to obtain the resistance curves. The definition of the cohesive laws mimicking the fracture process was performed measuring the crack tip opening displacement by digital image correlati...

The Mayo and Flory mechanisms for the self-initiation of styrene polymerization were explored with B3LYP and BPW91 density functional calculations. The Diels-Alder dimer (AH) is the key intermediate, and the lowest energy pathway for AH formation is a stepwise mechanism via a gauche/sickle (*M2*Gs) or gauche/U-shaped (*M2*Gu) diradical. Ring closure of the 1,4-diradical to diphenylcyclobutane (...

Many patients fail to achieve a clinical benefit from ICI. Several scores have been developed improve ICI candidates selection but it is uncertain which one better predicts patients’ outcome. Here, we performed direct comparison of the most successful scores. This sub-analysis immunoblood prospective observational study that enrolled diagnosed with advanced solid tumors treated Main clinicopath...