Scroll fan and blower.

Educating the Whistle - Blower

Electric Blower Based Portable Ventilator

When a patient is unable to breathe or maintain their airway they will most likely be ventilated by a bag-valve-mask. We propose to replace the traditional bag-valve-mask with an electric blower ventilator. This handheld feedback controlled device will automatically compensate for mask leak and enable the clinician to deliver computer controlled respiratory rates and tidal volumes. We have buil...

Evaluating and Comparing Aeration Blower Power Requirements

Evaluation of energy requirements is an important part of optimizing blower selection for aeration applications. In order to calculate blower power it is important to use actual process requirements and appropriate ambient conditions. A methodology is developed to establish the air flow, pressure, and ambient conditions that are reflective of operational energy use without excessive engineering...

Handedness, User Interface Design, Scroll Placement, User-centered Development Scroll Placement and Handedness Scroll Placement and Handedness Literature Review Menu and Scroll Placement

This study explored how individuals categorized on handedness (being left or right hand dominant) reacted to having the vertical scroll bar of a web browser relocated to the left side of the screen. The relocation of the vertical scroll bar served as an alternative to the relocation of the prominent left aligned main navigation menu for most websites. Fifteen participants were recruited for the...

Analysis of Flow Through Roots Blower Systems

Kinematic analysis of a Roots blower with involute flanks and circular root and tip sections is explained. The thermo-fluid model for the blower is described. Two mathematical models have been used to model the blower and its piping system. In the first model flow is assumed steady in the pipes,whereas in the second the unsteady flow in the pipes is taken into consideration. Leakage from the pr...