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Full-Text Articles in Engineering
An Energy-Based Approach To Assess And Predict Erosive Airfoil Defouling, Arthur Rudek, Thomas-Alexander Zitzmann, Geral Russ, Barry Duignan
An Energy-Based Approach To Assess And Predict Erosive Airfoil Defouling, Arthur Rudek, Thomas-Alexander Zitzmann, Geral Russ, Barry Duignan
Articles
A dynamic indentation experiment is presented for assessment of the adhesive behavior of a range of coatings in erosive defouling of commercial aircraft engines using CO2 dry-ice. A series of experiments is presented in which particles made from a reference material (polyoxymethylene – POM) and from CO2 dry-ice are made to impact compressor airfoils under a range of impact angle and velocity conditions. The airfoils investigated are coated with an indicator material (PTFE), which is typically used to visualise the defouling effect in large scale compressor defouling experiments. In addition, fouled compressor airfoils taken from service and coated with a …
Effect Of High- And Low-Molecular-Weight Hyaluronic-Acid-Functionalized-Az31 Mg And Ti Alloys On Proliferation And Differentiation Of Osteoblast Cells, Sankalp Agarwal, Brendan Duffy, James Curtin, Swarna Jaiswal
Effect Of High- And Low-Molecular-Weight Hyaluronic-Acid-Functionalized-Az31 Mg And Ti Alloys On Proliferation And Differentiation Of Osteoblast Cells, Sankalp Agarwal, Brendan Duffy, James Curtin, Swarna Jaiswal
Articles
The quality of patient care has increased dramatically in recent years because of the development of lightweight orthopedic metal implants. The success of these orthopedic implants may be compromised by impaired cytocompatibility and osteointegration. Biomimetic surface engineering of metal implants using biomacromolecules including hyaluronic acid (HA) has been used an effective approach to provide conditions favorable for the growth of bone forming cells. To date, there have been limited studies on osteoblasts functions in response to metal substrates modified with the hyaluronic acid of different molecular weight for orthopedic applications. In this study, we evaluated the osteoblasts functions such as …
Influence Of Atmospheric Clearness On Pdlc Switchable Glazing Transmission, Aritra Ghosh, Brian Norton, Tapas K. Mallick
Influence Of Atmospheric Clearness On Pdlc Switchable Glazing Transmission, Aritra Ghosh, Brian Norton, Tapas K. Mallick
Articles
Electrically activated switchable polymer dispersed liquid crystal (PDLC) is suitable for adaptive windows. A particular type requires 20V to become 71% transparent while in the absence of power it is 27% transparent. Glazing transmission changes with light incident angle. As the clearness of a sky changes the fraction changes alter of direct insolation (that has an azimuthally changing incident) and diffuse insolation (that has a largely constant incident). Thus, the effective overall incident angle determining the glazing transmittance also changes. In this work for the first time, the variation of PDLC glazing transmission with clearness index has been investigated.