Abstract: Particles with suitable properties may be generated using systems and methods provided herein. The particles may include carbon particles.

Abstract: Particles with suitable properties may be generated using systems and methods provided herein. The particles may include carbon particles.

Abstract: Particles with suitable properties may be generated using systems and methods provided herein. The particles may include carbon particles. In some examples, carbon particles for metallurgy applications are provided.

Abstract: Particles with suitable properties may be generated using systems and methods provided herein. The particles may include carbon particles.

Abstract: A trunk stabilization device permits a standing user/subject to exercise and test hip abduction, adduction, flexion and extension with a conventional muscle exercise and testing machine such as the Cybex II system. A T-bar includes a vertical stem and two adjacent horizontal cross pieces. The stem is secured to the torque transducer unit associated with the machine such that the cross pieces extend horizontally and parallel to the torque axis of the transducer at a location between the transducer and the system support frame. A truck pad, preferably provided as part of the basic machine, is alternatively mountable in two mutually perpendicular and vertical orientations at an end of the cross piece. In one orientation the truck supporting surface is parallel to the torque axis; in the other orientation the axis and trunk supporting surface are mutually perpendicular.

Abstract: A portable quadriceps muscle exerciser includes a frame member on which a user sits with one buttock and thigh so that the lower leg dangles from the knee joint at the forward end of the device. Spaced bracket members project on opposite sides of the knee and pivotally support a pair of spaced arm members about a pivot axis which is substantially coaxial with the bending axis of the knee joint. The distal ends of the arm members are connected by a cross-piece which engages the patient's instep. One or more elastic straps extend between the frame member and the distal arm ends to resist rotation of the arms as the patient's leg is straightened. The location of the attachment of the straps to the frame member is adjustable to adjust the strap tension. In a preferred embodiment the frame member is a box into which all of the components can be pivoted for storage and which raises the patient's foot above the floor. The front wall of the box is secured to the straps and re-positionable to adjust the strap tension.