Abstract: A centrifugal impeller includes a hub and a plurality of impeller blades extending from the hub. Each impeller blade extends over a chord length between a leading end and a trailing end, over a span from a root at the hub to a tip end and over a thickness between a convex side and a concave side. The blades collectively or individually have profiles that define a circumferential pitch (CP) with regard to a spacing distance between the leading ends of neighboring ones of the blades and blade angles at positions along the convex side of each blade between the leading end and the trailing end. The blades have a solidity value (S) defined as CD/CP that is less or equal to 1.0 and the blade angles (?) of each blade increase from the respective leading end to the corresponding trailing end.

Abstract: A pumping element and method of turbomachinery design includes a blade having an incidence angle (?) and a blade angle (?), wherein a ratio of ?/? is less than approximately 0.3.

Abstract: An environment services architecture for a netcentric computing system is disclosed by the present invention. The environment services architecture includes runtime services for converting non-compiled computer languages into machine code during the execution of an application on the netcentric computing system. System services perform system-level functions in the netcentric computing system are also provided that may be selected from the group consisting of system security services, profile management services, task and memory management services and environment verification services. In addition, the environment services architecture also includes application services for performing common functions in the netcentric computing system. A component framework service provides components of the netcentric computing system with a standard infrastructure for allowing an application running on components to communicate within and across applications in the netcentric computing system.

Abstract: A base services architecture for a netcentric computing system is disclosed. The base services architecture includes at least one web server that is connected with an Internet connection and at least one client. A web server service is located on the web server. During operation, the web server service enables the web server to transfer and publish a plurality of documents in the web browser on the client. A push/pull service is located on the web server for automatically notifying members of a subscriber list of the netcentric computing system when a particular piece of information has been changed or updated. A workflow service is located on the web server that includes role management service, route management services, rule management services and queue management services.