Abstract: A deployable spacecraft element which has a solar energy collection and conversion means on one side of the deployable element and a radio frequency reflecting means on the other side of the deployable element. While the solar collection and conversion means and the radio frequency reflecting means are nominally oriented in opposite spatial directions and dependent on the orientation of the spacecraft to orient for solar collection or radio frequency transmission, one or more deployable elements may be mounted to a gimbal to allow for simultaneous solar collection and radio frequency collection by the spacecraft.

Abstract: The present disclosure is directed to a vascular device comprising a catheter and a structure as well as a movable macerator. The structure is provided at a distal part of the catheter and comprises a disengaging portion configured to disengage vascular debris from a vessel wall, and a collecting portion configured to collect removed vascular debris. The movable macerator is located at least partially within the structure and/or proximal to the structure and configured to macerate removed vascular debris, so that the device is configured to macerate vascular debris by way of movement of the macerator for facilitating entry into the opening and/or conveyance through the lumen.

Abstract: A catheter device for extracting an occlusion from a blood vessel includes a shaft having a proximal end and a distal end; and an expandable structure (3) having a proximal portion and a distal portion and coupled to or adjacent the distal end of the shaft; the expandable structure being configured to expand radially around the shaft; characterised in that the proximal portion of the expandable structure comprises one or more fragmentors (4, 5).

Abstract: A deployable spacecraft element which has a solar energy collection and conversion means on one side of the deployable element and a radio frequency reflecting means on the other side of the deployable element. While the solar collection and conversion means and the radio frequency reflecting means are nominally oriented in opposite spatial directions and dependent on the orientation of the spacecraft to orient for solar collection or radio frequency transmission, one or more deployable elements may be mounted to a gimbal to allow for simultaneous solar collection and radio frequency collection by the spacecraft.

Abstract: A method of assessing bolted joint integrity. A guided wave is sent through a structure containing at least one bolted joint. The guided wave that is subsequently propagated through the structure and interacted with the bolted joint is measured to obtain a measured result. At least one parameter of the guided wave after its travel through the structure, and after having been affected by a nonlinear acoustic behavior of the bolted joint, is analyzed. Either at least one guided wave parameter is compared to a wave propagation pattern of the bolted joint at a correct torque level, or variation of at least one guided wave parameter is compared, to determine changes in wave propagation time and/or wave propagation shape. An incorrect torque level of the bolted joint is inferred from any changes that are determined.

Abstract: A method of using Structural Health Monitoring (SHM) techniques for determining whether changes in thermal conductivity have occurred to a particular interface between two joined structural members is described, which is particularly useful in satellites or other structures ordinarily subjected to vacuum pressure.

Abstract: A method of assessing bolted joint integrity. A guided wave is sent through a structure containing at least one bolted joint. The guided wave that is subsequently propagated through the structure and interacted with the bolted joint is measured to obtain a measured result. At least one parameter of the guided wave after its travel through the structure, and after having been affected by a nonlinear acoustic behavior of the bolted joint, is analyzed. Either at least one guided wave parameter is compared to a wave propagation pattern of the bolted joint at a correct torque level, or variation of at least one guided wave parameter is compared, to determine changes in wave propagation time and/or wave propagation shape. An incorrect torque level of the bolted joint is inferred from any changes that are determined.