In the present work, an attempt has been made to understand the feasibility of using UHF technique for identification of any corona discharges/ arcing in insulating material due to water droplets. The sensors of broadband type are useful for identification of such discharges. It is realised that arcing initiated by liquid droplet radiates UHF signals in the entire bandwidth up to 2 GHz. The fre...

Quality control to obtain composite laminates is frequently applied synthetic fibers/epoxy prepregs. The gel time test, resin, volatiles and fiber content, drape measurement tack tests together with water absorption capacity are methods currently employed. However, for natural fibers prepregs there a gap in the literature, which makes their application difficult. Thus this work will investigate...

Simple analytical methods are needed for determining the cadmium (Cd) content of brown rice samples. In the present study, we developed a new analytical procedure consisting of the digestion of rice using HCl, Cd purification using anion exchange resin, and then determining the Cd content using fluorescence spectroscopy. Digestion with 0.1 M HCl for 10 min at room temperature was sufficient to ...

The flame retardancy of plywood should be improved as much possible while minimizing the impact on bonding strength plywood. Six commercial retardants and three laboratory synthesized phosphorous nitrogen were selected. E0, E1 E2 grade formaldehyde resins (UF) applied in this study to evaluate effect different curing time resin, strength, retardant performance, emission results show that additi...

In this paper, graphene oxide decorated with cerium oxide (CeO2) nanoparticles was prepared and used as anticorrosive pigments in epoxy nanocomposite coatings. The synthesized nanoparticle was characterized by FTIR, XRD, SEM, and EDX analyses. Graphene oxide decorated with CeO2 nanoparticles was dispersed in epoxy resin by sonication. The optimum nanoparticle content of th...

The influences of natural bamboo fibers (BFs) weight fraction on the microstructure, quasi-static and dynamic compressive responses epoxy resin matrix composites were investigated with aid scanning electron microscope, electronic universal testing machine modified Split Hopkinson pressure bar (SHPB) setup. properties BFs/epoxy suggested that strength strongly improved addition BFs, which was at...

Aim of the study: We tested alternative active principles to most widely used resin tapping stimulant which contains sulphuric acid. also studied effect wounding in five-year-old Pinus pinaster seedlings with a microtapping method.Area The experiment was carried out at Universidad Politécnica de Madrid Spain.Material and Methods: consisted six treatments: control (no no wounding), wound stimula...

Ion exchange resins are water-insoluble, cross-linked polymers containing salt-forming groups in repeating positions on the polymer chain. Bitter cationic drugs get adsorbed on to weak cationic exchange resins of carboxylic acid functionality like Indion 204, Indion 234 and Tulsion 335 to forms non-bitter complexes. The present investigation aims at taste masking of the bitter clarithromycin us...

In order to develop a polycarbonate (PC)/ acrylonitrile-butadiene-styrene (ABS) product with a high content of recycled PC, a low molecular weight virgin PC was added to recycled PC to minimize batch-to-batch property variations in the compounded product. Six PC/ABS blends were prepared on a twin screw extruder by mixing 50 wt% virgin ABS and 0-25 wt% low molecular weight virgin PC with 25-50 w...