Abstract: Distributed computer system with an application server and an auxiliary server for processing a group transaction with entities in the group. The group transaction, requiring a target value to be received, includes first and second transactions. The application server is configured to receive the first transaction including a first value, interface the auxiliary server to create and access a temporary file to store the first value in which temporary file is associated with the group transaction, receive the second transaction including a second value after the first transaction in which the second value to reach a target value when combined with the first value, and receive identification information associated with the group transaction for each group entity independently from the first and second transactions. In response to receiving the first and second values as well as the identification information for each group, designated files are issued for each entity.

Abstract: The invention provides a rotary drag-type drill bit in which the relationship of torque to rotary bit speed is such that torque generally increases with bit speed. Such a bit has a reduced tendency to exhibit the phenomenon known as “stick-slip” while drilling, when compared with bits having a different torque /speed characteristic, as a result of the positive damping effect of the torque/speed relationship. One method of designing such a drill bit comprises ascertaining the torque/rotary bit speed relationship, or other correlated relationships, for a number of different drill bit designs and then selecting from those designs a design having the desired type of relationship. Examples of drill bit structures specifically designed to achieve the desired torque/speed relationship are also disclosed.