Structured Financial Products as the Instrument of Financial Credit Assurance for the Companies Involved into Foreign Economic Activities
Indefiniteness in financial markets motivates many market participants to use with increasing frequency the structured financial products. In the research paper at the level of concept we propose the structured financial products aimed at solution of pressing tasks faced by the companies involved into foreign economic activities. DOI: 10.5901/mjss.2015.v6n1s3p117
Risk-Engineering, As an Element of Financial Engineering in the Market of Innovative Financial Products
Article is devoted to reveal the main ideas and the field of application of risk-engineering, as process of designing of the innovative financial products. Risk-engineering are created for reduction of a various sort of risks, by means of financial engineering.
Properties of a monopivot centrifugal blood pump manufactured by 3D printing
An impeller the same geometry as the impeller of a commercial monopivot cardiopulmonary bypass pump was manufactured using 3D printing. The 3D-printed impeller was integrated into the pump casing of the commercially available pump to form a 3D-printed pump model. The surface roughness of the impeller, the hydraulic performance, the axial displacement of the rotating impeller, and the hemolytic properties of the 3D-printed model were measured and compared with those of the commercially available model. Although the surface roughness of the 3D-printed model was significantly larger than that of the commercially available model, the hydraulic performance of the two models almost coincided. The hemolysis level of the 3D-printed model roughly coincided with that of the commercially available model under low-pressure head conditions, but increased greatly under high-pressure head conditions, as a result of the narrow gap between the rotating impeller and the pump casing. The gap became narrow under high-pressure head conditions, because the axial thrust applied to the impeller increased with increasing impeller rotational speed. Moreover, the axial displacement of the rotating impeller was twice that of the commercially available model, confirming that the elastic deformation of the 3D-printed impeller was larger than that of the commercially available impeller. These results suggest that trial models manufactured by 3D printing can reproduce the hydraulic performance of the commercial product. However, both the surface roughness and the deformation of the trial models must be considered to precisely evaluate the hemolytic properties of the model.