Abstract: The present disclosure is directed to improved systems and methods for installing one or more filters in one or more desired locations. In embodiments, the system comprises a flexible filter medium, a pair of rails, a pair of ropes each corresponding to a respective one of the pair of rails, and a flexible filter medium, wherein the pair of parallel rails is mounted to a surface, and wherein the ropes are inserted into the rails and connected to the flexible filter medium.

Abstract: A method and composition are provided for backfilling the annular gap created as a tunnel boring machine advances through the ground. The fill material is comprised of two components that are combined and mixed together just prior to entering the annular gap. The first component is non-cement slurry consisting of a fluidized bed combustion ash such as coal ash. The second component consists of an alkali silicate such as sodium silicate. Additionally, ordinary Portland cement and/or metakaolin can be added to the grout composition.

Abstract: A method and composition are provided for backfilling the annular gap created as a tunnel boring machine advances through the ground. The fill material is comprised of two components that are combined and mixed together just prior to entering the annular gap. The first component is non-cement slurry consisting of a fluidized bed combustion ash such as coal ash. The second component consists of an alkali silicate such as sodium silicate. Additionally, ordinary Portland cement and/or metakaolin can be added to the grout composition.

Abstract: What is disclosed is a video system. The video system includes a digital video recorder comprising a first camera interface configured to receive video captured from a first plurality of cameras, a packet interface configured to receive in a packet format video captured by a second plurality of cameras, and a storage system configured to store the video captured by the first plurality of cameras and the video captured by the second plurality of cameras. The video system also includes a video encoder coupled to the digital video recorder by a packet link, where the video encoder includes a second camera interface configured to receive video captured from the second plurality of cameras and an output interface configured to transfer in the packet format the video captured by the second plurality of cameras for delivery to the digital video recorder over the packet link.

Abstract: What is disclosed is a video system. The video system includes a digital video recorder comprising a first camera interface configured to receive video captured from a first plurality of cameras, a packet interface configured to receive in a packet format video captured by a second plurality of cameras, and a storage system configured to store the video captured by the first plurality of cameras and the video captured by the second plurality of cameras. The video system also includes a video encoder coupled to the digital video recorder by a packet link, where the video encoder includes a second camera interface configured to receive video captured from the second plurality of cameras and an output interface configured to transfer in the packet format the video captured by the second plurality of cameras for delivery to the digital video recorder over the packet link.

Abstract: What is disclosed is a video system. The video system includes a digital video recorder comprising a first camera interface configured to receive video captured from a first plurality of cameras, a packet interface configured to receive in a packet format video captured by a second plurality of cameras, and a storage system configured to store the video captured by the first plurality of cameras and the video captured by the second plurality of cameras. The video system also includes a video encoder coupled to the digital video recorder by a packet link, where the video encoder includes a second camera interface configured to receive video captured from the second plurality of cameras and an output interface configured to transfer in the packet format the video captured by the second plurality of cameras for delivery to the digital video recorder over the packet link.

Abstract: What is disclosed is a video system. The video system includes a digital video recorder comprising a first camera interface configured to receive video captured from a first plurality of cameras, a packet interface configured to receive in a packet format video captured by a second plurality of cameras, and a storage system configured to store the video captured by the first plurality of cameras and the video captured by the second plurality of cameras. The video system also includes a video encoder coupled to the digital video recorder by a packet link, where the video encoder includes a second camera interface configured to receive video captured from the second plurality of cameras and an output interface configured to transfer in the packet format the video captured by the second plurality of cameras for delivery to the digital video recorder over the packet link.

Abstract: What is disclosed is a video system. The video system includes a digital video recorder comprising a first camera interface configured to receive video captured from a first plurality of cameras, a packet interface configured to receive in a packet format video captured by a second plurality of cameras, and a storage system configured to store the video captured by the first plurality of cameras and the video captured by the second plurality of cameras. The video system also includes a video encoder coupled to the digital video recorder by a packet link, where the video encoder includes a second camera interface configured to receive video captured from the second plurality of cameras and an output interface configured to transfer in the packet format the video captured by the second plurality of cameras for delivery to the digital video recorder over the packet link.