Abstract: The present invention relates to a process for extracting double-stranded DNA, using ionic liquids of formula (I). It also relates to kits comprising such ionic liquids to implement such a process.

Abstract: A process for increasing the chemical resistance of a polymeric composition is provided. The method includes a step of blending: a) the (meth)acrylic polymer AP1 and b) a copolymer CP1. The copolymer CP1 includes at least 41 wt % of vinyl aromatic monomer units by weight of the copolymer CPI. The polymeric composition includes at least 5 wt % of the copolymer CP1, by weight of the polymeric composition. A chemical resistance of the polymeric composition is better than a chemical resistance of the (meth)acrylic polymer AP1 without CP1. Chemical resistance is measured by a time to crack at 120° C. when subjected to an outer radius bending strain of 75% and wetted with a cloth soaked in isopropanol 99%.

Abstract: Systems and a method for simulating a flexible retraction cable during motion of an object to which the cable is attached. The method includes receiving information inputs, including a numerical model of the object, receiving cable information inputs and retraction system information inputs. A numerical model of the flexible cable is modeled by modelling only a part of the flexible cable located outside a retraction system as a sequence of control points distributed along a length of the part, wherein each of the control points is submitted to a force representing the interaction of the control point with its environment and wherein the number of control points is fixed. The method further includes storing the numerical model of the flexible cable in a memory and simulating a motion of the flexible cable that would occur during a movement of the object.

Abstract: Systems and a method for simulating a flexible retraction cable during motion of an object to which the cable is attached. The method includes receiving information inputs, including a numerical model of the object, receiving cable information inputs and retraction system information inputs. A numerical model of the flexible cable is modeled by modelling only a part of the flexible cable located outside a retraction system as a sequence of control points distributed along a length of the part, wherein each of the control points is submitted to a force representing the interaction of the control point with its environment and wherein the number of control points is fixed. The method further includes storing the numerical model of the flexible cable in a memory and simulating a motion of the flexible cable that would occur during a movement of the object.

Abstract: A method of testing the integrity of a fluid flow regulator system for a turbine engine, the system including a fluid-passing duct associated with a movable flap; an actuator having a movable drive element suitable for delivering a movement force between a first position corresponding to the closed position of the movable flap and a second position corresponding to the open position of the movable flap; a push-pull cable interconnecting the drive element and the movable flap; and return device exerting a return force for moving the flap; the method of testing the integrity of the system including in succession: a step of supplying power to the actuator in order to place the drive element in the second position; a step of interrupting the supply of power; and a step of measuring the position of the drive element.

Abstract: A method of testing the integrity of a fluid flow regulator system for a turbine engine, the system including a fluid-passing duct associated with a movable flap; an actuator having a movable drive element suitable for delivering a movement force between a first position corresponding to the closed position of the movable flap and a second position corresponding to the open position of the movable flap; a push-pull cable interconnecting the drive element and the movable flap; and return device exerting a return force for moving the flap; the method of testing the integrity of the system including in succession: a step of supplying power to the actuator in order to place the drive element in the second position; a step of interrupting the supply of power; and a step of measuring the position of the drive element.

Abstract: A coupling system including a coupling for fastening to one end of a pipe via a fastening connection is provided. The coupling system includes a safety fastener device in the form of a sleeve surrounding the fastening connection and having a first end for welding to the pipe, and a hook-forming second end for co-operating with the coupling in such a manner that the hook is suitable for providing fastening between the coupling and the pipe in the event of the fastening connection is damaged.

Abstract: The present invention relates to a coupling system comprising a coupling for fastening to one end of a pipe via a fastening connection, said coupling system further including safety fastener means in the form of a sleeve surrounding the fastening connection and having a first end for welding to the pipe, and a hook-forming second end for co-operating with the coupling in such a manner that the hook is suitable for providing fastening between the coupling and the pipe in the event of the fastening connection being damaged.

Abstract: A coupling system including a coupling for fastening to one end of a pipe via a fastening connection; and a sleeve surrounding the fastening connection is disclosed. The sleeve includes a first end for welding to the pipe, and a hook-forming second end for co-operating with the coupling in such a manner that the hook is suitable for providing fastening between the coupling and the pipe in the event of the fastening connection being damaged.

Abstract: A coupling system including a coupling for fastening to one end of a pipe via a fastening connection; and a sleeve surrounding the fastening connection is disclosed. The sleeve includes a first end for welding to the pipe, and a hook-forming second end for co-operating with the coupling in such a manner that the hook is suitable for providing fastening between the coupling and the pipe in the event of the fastening connection being damaged.