PurposeLung transplant (LTx) is limited by a supply of donor lungs. Donor lungs from smokers are known to have adverse effects on early post-LTx outcomes (Oto et al, 2004). As long-term survival remains under assessed we investigated the effect smoking LTx and death chronic lung allograft dysfunction (CLAD) using cohort described Oto al.Methods173 bilateral recipient records between 1995-2002 w...

Novel conical reflection of light by a thick three-layered metal-clad optical waveguide is observed. A symmetrical metal-cladding optical waveguide is used, which exhibits extraordinary conical reflection during free-space coupling of light to the waveguide. The phenomenon is attributed to the leakage of excited ultrahigh-order guided modes and their inter- and intramode coupling interaction.

The Atominstitute (ATI) of the Vienna University of Technology utilizes a TRIGA Mark II research reactor for last fourty eight years at a nominal reactor power of 250 kW (thermal). It has a completely mixed core and employing three different types of fuels i.e. aluminium clad fuel with 20% enrichment, stainless steel (SS) clad fuel with 20% enrichment and SS clad FLIP fuel with 70% enrichment. ...

Single mode optical fibers having minimum non-zero dispersion over the spectral windows of 1300 and 1550 nm region are essential for the multi-channel operation of dense wavelength multiplexed systems and minimizing the nonlinear four wave mixing effects This paper demonstrates that nonzero dispersion flattening of the dispersion factor extends over a wavelength range of more than 350 nm is ach...

PurposeCurrently, chronic lung allograft dysfunction (CLAD) is defined as the presence of an irreversible or partly reversible (to ≤ 80% baseline) decline in FEV1 compared with baseline values, persistent for at least 3 months. In established CLAD, total capacity (TLC) and chest computed tomography (CT) are required to determine CLAD phenotype, this has therapeutic prognostic significance. Curr...

PurposeChronic lung allograft dysfunction (CLAD) is the primary cause of long-term mortality after transplantation. Aspiration bile acids has been associated with CLAD and lipidomic dysregulation. This study evaluates role large airway bronchial wash (LABW) lipidomics diagnosis CLAD.MethodsLABW (n=611) samples were obtained from 305 transplant recipients at different timepoints. Concentrations ...

We have fabricated an ytterbium doped all-glass double-clad large mode area holey fiber. A highly efficient cladding pumped single transverse mode holey fiber laser has been demonstrated, allowing continuous-wave output powers in excess of 1W with efficiencies of more than 80%. Furthermore both Q-switched and mode-locked operation of the laser have been demonstrated.

We report on a narrowband 5 W cw fiber laser incorporating a point-by-point fiber Bragg grating inscribed into the core of a Yb(3+)-doped double-clad fiber. The laser featured excellent long-term wavelength and power stability (0.3%), as well as a very narrow (15 pm) linewidth, when passive temperature stabilization of the grating was implemented.

This work focuses on the thermal modeling of Directed Energy Deposition a composite coating (316L stainless steel reinforced by Tungsten carbides) 316L substrate. The developed finite element model predicts history and melt pool dimension evolution in middle section clad during deposition. Numerical results were correlated with experimental analysis (light optical scanning electron microscopies...

We report on generation of 850fs mode-locked pulses at 1065nm in a completely fiber integrated format. The figure-of-eight, fiber laser source incorporates anomalous dispersion compensation by using a holey fiber and a short length, high gain, double-clad Yb-fiber amplifier.