Method and arrangement for implementing a system for providing multi-angular SPECT radiation sampling utilizing slant-angle collimation. The method comprises: determining whether the control valve may require cleaning; adjusting the duty cycle of the shuttle so as to increase a flow of fluid through the control valve and clean the control valve; and adjusting a throttle position of the engine and thus the engine torque output to compensate for the adjustment in the amount of boost provided by the turbocharger. Based upon these streaming and playback conditions, values of streaming parameters of a streaming device and values of playback parameters of a playback device are determined. A crimping device is also disclosed which allows the stent to be exposed to humidity during the crimping process. The storage on all the platters is divided up among the actuators so that no storage location is shared, but all the actuators will operate concurrently. , the condition that the grain retention rate expressed by the proportion of the grain depth of the sheet retained after the male vacuum forming relative to the grain depth before the male vacuum forming represented by percent meets the relation defined by the following equation .