This paper presents an investigation on single objective optimization for CO2 laser cladding process considering clad height (H) and clad width (W) as performance characteristics. This optimization of multiple quality characteristics has been done using Genetic Algorithm (GA) approach. The aim of this work is to predict the performance characteristics (H and W) at optimized condition by applyin...

This paper describes a study carried out to investigate the capabilities of computer aided design software for the visualisation of building elevations and detail, with focus on the representation of photovoltaic cells in facade architecture. The development of photovoltaic (PV) technology, converting energy from sunlight into electricity, has resulted in the emergence of PV as a building mater...

Here we examine the waveguide dispersion property of slot waveguides, approaching/analyzing the given problem with respect to the normalized index contrast, Δnslot-core/ncore and Δncore-clad/ncore between adjacent layers . For two index contrasts of concern, it is found that their contributions to slot waveguide dispersions are substantially different, with Δnslot-core and Δncore-clad each acti...

In this research, corrugated Mg/Al clad sheet with good interface bonding was prepared a rolling mill of upper roll and lower flat under the conditions 35% reduction 400 °C. The mechanical properties were studied using transverse tensile test, Vickers microhardness as well its bending properties. Moreover, mechanism researched through three-dimensional contour analysis. results showed that UTS ...

A scalar variational analysis based on a Gaussian approximation of the fundamental mode of a double-clad elliptical fiber with a depressed inner cladding is studied. The polarization properties and graphic results are presented; they are given in terms of three parameters: the ratio of the major axis to the minor axis of the core, the ratio of the inner cladding major axis to the core major axi...

An all-fiber curvature laser sensor by using a novel modal interference in-fiber structure is proposed and experimentally demonstrated. The in-fiber device, fabricated by fusion splicing of multimode fiber and double-clad fiber segments, is used as wavelength filter as well as the sensing element. By including a multimode fiber in an ordinary modal interference structure based on a double-clad ...

Laser cladding technology is used to clad the surface layer of H13 mold steel with Ni60A metal powder coating solve failure problem. The study JMatPro software extract and fit thermophysical property parameters substrate material, then ANSYS APDL qualitatively analyze distribution melt pool morphology, nodal temperature versus time course curve residual stress magnitude during laser process. Ba...

An edge-emitting laser diode is described in which the epitaxial upper cladding layer is replaced with a metal contact selected for its optical as well as electrical properties. The structure is demonstrated with an In0.1Ga0.9N multiple-quantum-well laser diode operating at 412 nm with silver rather than the typical p-type AlGaN for the upper cladding. Silver is effective as a cladding layer be...

Silica-clad optical fibers comprising a core of crystalline germanium were drawn using a molten core technique. With respect to previous fibers drawn using a borosilicate cladding, the present fibers exhibit negligible oxygen despite being fabricated at more than twice the melting point of the germanium. The counterintuitive result of less oxygen when the fiber is drawn at a higher temperatures...

Background: Bronchiolitis obliterans syndrome (BOS) and restricted allograft (RAS) are two distinct phenotypes of chronic lung dysfunction (CLAD) in transplant (LTx) recipients.  Contrary to BOS, RAS can radiologically present with a pleuroparenchymal fibroelastosis (PPFE) pattern. This study investigates ultrasound (LUS) identify potential surrogate markers radiological PPFE patter...