There are numerous engineering applications where Glass Fiber Reinforced Polymer (GFRP) composite tubes utilized, such as desalination plants, power transmission systems, and paper mill, well marine, industries. Some type of machining is required for those various either joining or fitting procedures. Machining GFRP has certain difficulties that may damage the tube itself because fiber delamina...

Abstract This paper proposes a netlike energy director (ED) made of carbon fiber-reinforced thermoplastic (CFRP) composites for ultrasonic welding. To explore the benefits using EDs, joint qualities with flat EDs and without are included references. The influence ED geometry on weld attributes quality investigated in terms cross-sectional microstructure, fracture morphology, maximum shear load....

This paper explores the potentially powerful role e-assessment practices can have on culture change in learning and teaching. This paper demonstrates how new e-assessment practices can ‘push back’ through educational institutions. This is done by applying the work of Gibbs and Simpson (2004/5) to e-assessment practices. To illustrate the practical effects of this evidence-based framework, the a...

To meet increased fiber capacity and transmission distance demands, ultra-Dense Wavelength-Division Multiplexing (DWDM) is preferred by Sprint because of its compatibility with Sprint's legacy fiber plant, composed primarily of standard Single-Mode Fiber (SMF). This paper focuses on long-haul transmission efficiencies and fiber compatibility. The trade-offs between bandwidth efficiency, transmi...

epoxy powder coatings containing zinc aluminum phosphate (zap) and zinc phosphate (zp), which are the 2nd and 1st generation of phosphate-based pigments respectively, were applied to the surface of mild steel sheets. the anticorrosive performances of the coated samples were studied using electrochemical impedance spectroscopy (eis). cathodic disbonding resistance and the adhesion performance of...

Pull-tabbing is an evaluation technique for functional logic programs which computes all non-deterministic results in a single graph structure. Pull-tab steps are local transformations to move choices towards the root of expression. independent search strategy so that different strategies (depth-first, breadth-first, parallel) can be used extract computation. It has been compile languages into ...

this paper studies pull-in behavior of a bio-mass sensor with a cantilevered cnt actuated electrostatically considering rippling deformation. although this phenomenon can change the behavior of cnt remarkably, its effect on the performance of a cnt-based mass sensor is not investigated yet. this investigation is based on modified euler-bernoulli beam theory and rippling effect is entered the eq...

When mixed together, DNA and polyaminoamide dendrimers form fibers that condense into a compact structure. We use optical tweezers to pull condensed fibers and investigate the decondensation transition by measuring force-extension curves (FECs). A characteristic force plateau (around 10 pN) and hysteresis between the pulling and relaxation cycles are observed for different dendrimer sizes, indi...