header block

header block

A concrete masonry unit having a portion of one face shell removed to facilitate bonding with adjacent masonry such as brick facings.
References in periodicals archive ?
org -- The World Wide Web Consortium (W3C) has published three new Web Services Recommendations: XML-binary Optimized Packaging (XOP), SOAP Message Transmission Optimization Mechanism (MTOM), and Resource Representation SOAP Header Block (RRSHB).
The third piece, the Resource Representation SOAP Header Block (RRSHB) functionality allows SOAP message recipients to access cached representations of external resources.
In August 2004, two new SOAP specifications advanced to Candidate Recommendation status, indicating that W3C considers them ready for implementation: "SOAP Message Transmission Optimization Mechanism" and "Resource Representation SOAP Header Block.