Corrugated Soil-Steel bridges have been used as drainage structures and underpasses in the ongoing Southern Highway project. Because the Soil-Steel bridges are novel to Sri Lankan context and the catastrophic bridge failure at Poddala, 2009 led to a controversy about the suitability and the stability of SoilSteel bridges. The structure safety against crushing failure of the corrugated steel arc...

In this paper, we perform surface plasmon-coupled emission studies on Rhodamine 6G molecules embedded in a corrugated structure of a thin film composed of fluorinated silica particles, and a binding medium. Our results show enhancements of photoluminescence due to surface corrugation. By varying the size of the fluorinated silica nanoparticles we were able to control the surface correlation len...

The sinusoidal speech model represents a speech signal as a linear combination of sinusoids with time-varying parameters {amplitudes, frequencies, and phases}. However, one drawback of this model is that the analysis window width is generally fixed in analyzing the signal. Since each sinusoidal parameter has different frequencies, an analysis window with fixed width can’t guarantee an optimum s...

Abstract Currently, most of the collected waste medium-density fiberboards (MDF) is incinerated or landfilled, as economically viable recycling methods are yet to be developed. By steam refining (MDF), it possible hydrolyze incorporated resins and isolate a high yield fiber fraction. Further treated fibers might enable utilized in applications such paper packaging, facilitating cascading use ma...

We present a method of fabricating Ge-doped SiO2 fibers with corrugations around their full circumference for a desired length in the longitudinal direction. The procedure comprises three steps: hydrogenation of Ge-doped SiO2 fibers to increase photosensitivity, recording of Bragg gratings with ultraviolet light to achieve modulation of refractive index, and chemical etching. Finite-length, rad...

The high humidity produced by the ripening of fruit and vegetables during refrigerated storage transport leads to a noticeable loss strength corrugated board packaging. Increasing use recycled fibres in manufacture further reduces box compression strength. Adding virgin furnish composition liner paper could solve this problem. Various proportions unbleached eucalyptus pine were added used for b...

Thin-walled hollow steel columns, either circular or box shaped, are commonly used as piers in bridges. Recent earthquakes, e.g. Hyogoken-Nanbu or Kobe 1995, on the other hand have shown that these columns are vulnerable to damage when subjected to earthquake loading. This paper presents a new innovative thin-walled hollow steel column fabricated of corrugated plates, “thin-walled steel columns...

In this paper, we investigate a corrugated mm-scale capillary as a compact accelerating structure in a drive – witness acceleration scheme, and suggest a methodology to measure acceleration of a witness bunch. Two typical measurements and the energy gain in a witness bunch as a function of the distance between bunches are discussed. A corrugated capillary is considered as an accelerator/deceler...