Delamination is a common and highly relevant in-service failure mode of laminated structures. Cyclic mechanical loads superimposed with environmental factors, such as hot-humid air, are most critical. To evaluate the cyclic debonding resistance polymeric hybrid laminates, fracture mechanics approaches based on double cantilever beam (DCB) specimens well established. However, conventional fatigu...

This paper deals with the application of Cohesive Zone Model (CZM) concepts to study mode I fracture in adhesive bonded joints. In particular, an intrinsic piece-wise linear cohesive surface relation is used in order to model fracture in a pre-cracked bonded Double Cantilever Beam (DCB) specimen. Finite element implementation of the CZM is accomplished by means of the user element (UEL) feature...

We here describe that soluble HLA-DQ2 (sDQ2)molecules, when expressed in Drosophila melanogaster S2insect cells without a covalently tethered peptide, associatetightly with the D. melanogaster calcium binding proteinDCB-45. The interaction between the proteins is stable in S2cell culture and during affinity purification, which is done athigh salt concentrations and pH 11...

We present quad-constellation (namely, GPS, GLONASS, BeiDou and Galileo) time group delay (TGD) and differential code bias (DCB) correction models to fully exploit the code observations of all the four global navigation satellite systems (GNSSs) for navigation and positioning. The relationship between TGDs and DCBs for multi-GNSS is clearly figured out, and the equivalence of TGD and DCB correc...

Tylophorine and its analogs are phenanthroindolizidine alkaloids, several of which have been isolated from the Tylophora genus of plants. Evaluation of ( )-S-tylophorine [DCB-3500 (NSC-717335)] and its analog DCB-3503 (NSC-716802) in the National Cancer Institute tumor screen showed a fairly uniform and potent inhibition of cell growth in all 60 cell lines (GI50 10 8 M). To further evaluate the...

Differential code biases (DCBs) are important parameters in GNSS (Global Navigation Satellite System) applications such as positioning as well as ionosphere remote sensing. In comparison to the conventional approach, which utilizes ground-based observations and parameterizes global ionosphere maps together with DCBs, a method is presented for GPS and BeiDou system (BDS) satellite DCB estimation...

o-Dichlorobenzene (o-DCB) is used as an organic solvent, as a chemical intermediate, and as a heat transfer medium. In humans, o-DCB is metabolized to 2,3and 3,4-dichlorophenols, and 3,4and 4,5-dichlorocatechols, and these metabolites are eliminated via the kidneys. In this study, we tried to determine the concentrations of urinary 2,3and 3,4-dichlorophenols using a gas chromatograph (GC). When...

BACKGROUND Studies examining the efficiency of drug-coated balloon (DCB) + bare metal stent (BMS) compared with stents alone for de novo lesions have reported inconsistent results. The present comprehensive meta-analysis of randomized controlled trials (RCTs) assessed and compared the clinical efficacy and safety of DCB + BMS with those of stents alone for de novo coronary artery disease. MET...

BACKGROUND Drug-coated balloons (DCBs) have shown promise in improving the outcomes for patients with peripheral artery disease. We compared a paclitaxel-coated balloon with percutaneous transluminal angioplasty (PTA) for the treatment of symptomatic superficial femoral and popliteal artery disease. METHODS AND RESULTS The IN.PACT SFA Trial is a prospective, multicenter, single-blinded, rando...

In this work the mode I fracture properties of bone tissue were determined for the RL propagation system. With this aim, Double Cantilever Beam (DCB) fracture tests were performed using specimens of cortical bone tissue harvested from bovine femurs with an age of approximately 8 months. In order to overcome the difficulty associated to the monitoring of crack length during propagation in the co...