摘要:
An eta-phase-free cemented carbide insert with improved surface hardness and wear resistance containing WC, and possibly cubic phases of a carbide and/or carbonitride, in a binder phase of Co, Ni, Fe or a combination thereof, with a binder phase gradient in the surface and near surface regions, is disclosed. The nominal binder phase content in the insert is 3-20 weight %. The surface, and near surface cobalt content is 50-100% of the binder phase content of the inner portion of the insert. The insert is formed by standard sintering practices, followed by the chemical removal of the binder phase from the surface and near surface regions of the insert. The insert is then heat treated at a temperature of 1300-1350° C. in a carburizing atmosphere, for a time of 5-400 minutes to cause diffusion of the binder phase from the interior into the binder depleted surface regions.
摘要:
A system for providing a listener with an augmented audio reality in a geographical environment said system comprising a position locating system for determining a current position and orientation of a listener in. said geographical environment; an audio track creation system for creating an audio track having a predetermined spatialization component dependent on an apparent location of an apparent source associated with said audio track in said geographical environment; an audio track rendering system adapted to render an audio signal based on said audio track to a series of speakers surrounding said listener such that said listener experiences an apparent preservation of said spatialization component; and an audio track playback system interconnected to said position locating system and said audio track creation system and adapted to forward a predetermined audio track to said audio rendering system for rendering depending on said current position and orientation of said listener in said geographical environment.
摘要:
A signal analyzer and method for measuring signal compression levels of one or more individual orthogonal frequency division multiplexed (OFDM) signals among a plurality of OFDM signals within a composite signal.
摘要:
An orthopaedic surgical instrument includes an anchor configured to be coupled to a prosthetic tibial component, a shaft coupled to the anchor, and a separator coupled to the shaft. The separator is configured to move along the shaft between a first position in which the separator is spaced apart from the prosthetic tibial component and a second position in which the separator is positioned between the tibial tray and the sleeve of the prosthetic tibial component.
摘要:
An orthopaedic surgical instrument includes an anchor configured to be coupled to a prosthetic tibial component, a shaft coupled to the anchor, and a separator coupled to the shaft. The separator is configured to move along the shaft between a first position in which the separator is spaced apart from the prosthetic tibial component and a second position in which the separator is positioned between the tibial tray and the sleeve of the prosthetic tibial component.
摘要:
A relational database system and method for electronically storing and managing data, documents, and files relating to individuals, properties, vehicles, pets, assets, corporate bodies, and the like, to facilitate easy viewing, retrieval, organization and onward transmission of such information. The system enables a user to enter information into the intuitive relational database system on a once-only basis. The system integrates seamlessly on a user selectable two-way basis with third party suppliers, agencies, and computer programs. The system and method allow for centralized storage and then automated communication of a user's information for the purposes of receiving notifications of the lowest service provider quotes as well as sending notifications of emergency response, moving information, address updates, disaster recovery, and the like, from a single relational database system. Acceptance of such quotes may be automatic, and relevant documentation may thereafter be uploaded to the user's account for later search and review.
摘要:
An interactive spatialized audiovisual system links a plurality of remote used terminals. The system comprises a networked computer having an associated user database including user status information. Input means are provided at the computer for receiving a plurality of audio streams and associated locating data from the remote user terminals for, virtually locating the users relative to one another within a virtual user environment such as a chat room environment Selection means are provided for enabling selection of at least the first group of the audio streams in a first selection process based on status information in the user database. Output means output the selected group of audio streams and associated locating data for spatialization of the audio streams relative to a first listener-based audio reference frame which is substantially coherent with visual representations of the audio sources defined by the locating data at the first user terminal. Merging means are provided for merging at least some of the audio streams into a merged audio stream for transmittal to the first and other user terminal, with the merged audio stream being spatialized so as to provide for a spatialized background audio effect in the audio reference frame at the user terminal.
摘要:
An air return bulkhead may be removably mounted to the front wall of a cargo container such that the air return bulkhead is releasable and securable without the use of handheld tools. Accordingly, in various embodiments the bulkhead may be quickly and easily uninstalled and reinstalled so as to permit system maintenance, such removal of debris from a filter screen.