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[en] Scaled analog models based on extensional basins with synrift salt show how basement topography exerts a control factor on weld kinematics during the extension and inversion phases. In the case of basement-involved extension, syn-rift salt thickness differences may lead to variable degrees of extensional decoupling between basement topography and overburden, which in turn have a strong impact on the development of salt structures. With ongoing extension and after welding, the basin kinematics evolves toward a coupled deformation style. The basin architecture of our experimental results record the halokinetic activity related to growing diapirs and the timing of weld formationduring extension. Moreover, the structures that result from anysubsequent inversion of these basins strongly depends on the inherited welds and salt structures. While those basins are uplifted,the main contractional deformation during inversion is absorbed by the pre-existing salt structures, whose are squeezed developing secondary welds that often evolve into thrust welds. The analysis of our analog models shows that shortening of diapirs is favored by: i) basement topography changes that induce reactivation of primary welds as thrust welds; ii) reactivation of the salt unit as a contractional detachment and iii) synkinematic sedimentation during basin inversion. Finally, in this article, we also compare two natural examples from the southern North Sea that highlight deformation patterns very similar to those observed in our analog models.
[en] Precision threshold discriminator has been built for the signals from about 0.5mV up. Its dynamic range is up to 10 and linearity 6.10-5 or even better. The discriminator can discriminate both negative and positive d.c. voltages and pulses of width from 100ns
[en] This licensing topical report describes the Analog Transmitter/Trip Unit System for Engineered Safeguard Sensor Trip inputs. The system essentially replaces pressure, level and temperature switches with analog transmitter/trip unit combinations, which provide continual monitoring of critical parameters in addition to performing basic logic trip operations. The principal objective of the system is to improve sensor intelligence and reliability while greatly enhancing testing procedures. Design criteria and justification of application are included, as well as performance and essential qualification data for all new hardware. System implementation is designed to be suitable for all BWR power plants and is individually treated for operating plants, plants in late design phase, and plants in early design phase