Impedance tube method is widely used to measure acoustic properties of materials. Although this yields reliable for soft textured materials, uncertainty levels measured hard including biocomposites, can be quite large, mainly due uncertain mounting conditions. Here, the effects conditions on biocomposites in an impedance are investigated. First, nominally identical biocomposite samples with a d...

Pulsatile motion of blood in a circular tube of varying cross-section has been developed by considering slip flow at the tube wall and the blood to be a non- Newtonian biviscous incompressible fluid. The tube wall is supposed to be permeable and the fluid exchange across the wall is accounted for by prescribing the normal velocity of the fluid at the tube wall. The tangential velocity of the fl...

This paper reports on the design and construction of infrastructure test stations for small-diameter monitored drift tube (sMDT) assembly testing at University Michigan (UM) to prepare ATLAS Muon Spectrometer upgrade high-luminosity program Large Hadron Collider. Procedures quality assurance control (QA/QC) tests are described in detail. More than 99% tubes meet QA/QC specifications based 2100 ...

mendations about external diameter.2 While internal diameter is important for the airway resistance, the magnitude of the external diameter may play a role in the development of postintubation airway edema, postintubation croup and subglottic stenosis in pediatric patients. Therefore, when choosing a certain size of tracheal tube in children, both internal and external diameters should be taken...