This paper presents some recent validation results with velocity-based source BEM analysis program as applied to prediction of cavitation on rudder and podded propellers. The RANS solver is also applied to modelling of the rudder behind the propeller and the both BEM and RANS numerical predictions are compared with the experimental data. An example of prediction of cavitation on podded propelle...

INTRODUCTION: The concept of freestyle propeller flaps provides a versatile opportunity for wound closure at any part of the body with minimal donor site morbidity. As experience and familiarity with microsurgical procedures has increased interest in identifying-harvesting perforator flaps originating from known major vessels has become more common. The “freestyle” concept developed by Wei and ...

Figure 1: Variable FOV sampling patterns and resulting PSFs: (top) 2D PR elliptical FOV, (middle) PROPELLER oval FOV, (bottom) 3D PR cylinder with an elliptical base. Introduction: Radial-based imaging trajectories, such as projection-reconstruction, cones, and PROPELLER, have many applications [1-4] because of their increased robustness to motion and flow over Cartesian trajectories, and suppo...

Studying propulsion mechanisms in low Reynolds number fluid has implications for many fields, ranging from the biology of motile microorganisms and the physics of active matter to micromixing in catalysis and micro- and nanorobotics. The propulsion of magnetic micropropellers can be characterized by a dimensionless speed, which solely depends on the propeller geometry for a given axis of rotati...

Protein engineering of the beta-propeller protein aimed at enhancing the structural stability of the protein was carried out using a monomeric single domain beta-propeller protein, Salmonella typhimurium sialidase, as a model. Ala53 and Ala69 each located at strands B and C of the W1 motif were mutated to Leu and Val, respectively, to increase the hydrophobic interaction between W1 and W6 motif...

We have studied the folding during biosynthesis of the lymphocyte function-associated antigen 1 (LFA-1) aL subunit using mAb to epitopes that map to seven different regions within the amino acid sequence. The N-terminal portion of aL is predicted to contain a b-propeller domain, consisting of seven b-sheets, and an I domain that is predicted to be inserted between b-sheet 2 and b-sheet 3 of the...