Abstract: This invention relates to compositions and methods for improving water quality by enhancing natural bacterial processes and altering environmental conditions in situ. This is achieved by the manufacture and use of granules or tables composed of the inventive formulations.

Abstract: Various examples of systems for powering a linear motor with a multi-phase amplifier are described herein. In some embodiments, an apparatus includes a plurality of current sources for supplying power to an electronic device. The plurality of current sources are configured to supply a substantially constant direct current to a load, and each of the plurality of current sources is configured to supply a periodic alternating current that is out of phase relative to the periodic alternating current of one or more of the other current sources. A sum of the periodic alternating currents from the plurality of current sources is configured to provide the substantially constant direct current. Embodiments of the systems can be used in vibration testing equipment such as electro-dynamic shakers.

Abstract: A stand-off breaching device, for breaching a target, that includes a nose at a front end which is a rounded cone-shape and configured to cause the stand-off breaching device to rebound from a target after the nose impacts the target, and a body connected to the nose and extending to a back end of the stand-off breaching device. The body includes a main explosive fill that is detonated and explodes to provide an explosive breaching force, and a delay detonator that detonates the main explosive fill and that is triggered when the nose impacts a target. The delay-detonator is configured to delay detonation of the main explosive fill until the stand-off breaching device has rebounded to a determined stand-off distance chosen to cause effective breaching of the target. The nose, body, and their components are fabricated from material that will be substantially consumed by the explosion, minimizing any fragments.

Abstract: This invention relates to compositions and methods for improving water quality by enhancing natural bacterial processes and altering environmental conditions in situ. This is achieved by the manufacture and use of granules or tablets composed of the inventive formulations.

Abstract: A stand-off breaching device, for breaching a target, that includes a nose at a front end which is a rounded cone-shape and configured to cause the stand-off breaching device to rebound from a target after the nose impacts the target, and a body connected to the nose and extending to a back end of the stand-off breaching device. The body includes a main explosive fill that is detonated and explodes to provide an explosive breaching force, and a delay detonator that detonates the main explosive fill and that is triggered when the nose impacts a target. The delay-detonator is configured to delay detonation of the main explosive fill until the stand-off breaching device has rebounded to a determined stand-off distance chosen to cause effective breaching of the target. The nose, body, and their components are fabricated from material that will be substantially consumed by the explosion, minimizing any fragments.