Abstract: Embodiments for headwear are disclosed herein. In one embodiment, a headwear includes a crown, a chin strap coupled to the crown, the chin strap having a first strap portion and a second strap portion, and a set of fasteners to which one or more different components are configured to removably attach, the set of fasteners including a first fastener positioned on the first strap portion of the chin strap and a second fastener positioned on the second strap portion of the chin strap.

Abstract: Embodiments are disclosed for headwear including a headwear body comprising one or more panels, where at least one panel of the one or more panels is comprised of a three-layer sandwich of material, the three-layer sandwich of material including a first layer, a second layer, and a third layer, the second layer positioned intermediate the first layer and the third layer and comprised of a semi-rigid mesh material.

Abstract: Embodiments for headwear are disclosed herein. In one embodiment, a headwear includes a crown, a chin strap coupled to the crown, the chin strap having a first strap portion and a second strap portion, and a set of fasteners to which one or more different components are configured to removably attach, the set of fasteners including a first fastener positioned on the first strap portion of the chin strap and a second fastener positioned on the second strap portion of the chin strap.

Abstract: Embodiments are disclosed for headwear including an eyewear retaining pocket. For example, the headwear may include a headwear body, a first top opening disposed on a first side of the headwear body and providing access to a first pocket formed at the first side of the headwear body, the first pocket including a first inner surface and a second inner surface, and a first bottom opening disposed on the first side of the headwear, below the first top opening, and providing access to the first pocket or to another pocket formed at the first side of the headwear body, where the first top opening and the first bottom opening are of unequal size.

Abstract: A method and apparatus for estimating a seismic velocity field from seismic data including time-amplitude representations associated with source-receiver locations spaced apart by an offset distance and having a midpoint therebetween, the seismic data being arranged into common midpoint (CMP) gathers associated with respective CMP locations. A control plane having an edge intersecting a plurality of the CMP locations is defined, an initial velocity field for the control plane is produced, the initial velocity field including a plurality of time-velocity values for each of the CMP locations; and an optimized velocity field for the control plane is produced by adjusting the time-velocity values for each of the CMP locations in response to trends, relative to offset distance, in time values, associated with common seismic events, until said optimized velocity field satisfies a condition.

Abstract: A method and apparatus for estimating a seismic velocity field from seismic data including time-amplitude representations associated with source-receiver locations spaced apart by an offset distance and having a midpoint therebetween, the seismic data being arranged into common midpoint (CMP) gathers associated with respective CMP locations. A control plane having an edge intersecting a plurality of the CMP locations is defined, an initial velocity field for the control plane is produced, the initial velocity field including a plurality of time-velocity values for each of the CMP locations; and an optimized velocity field for the control plane is produced by adjusting the time-velocity values for each of the CMP locations in response to trends, relative to offset distance, in time values, associated with common seismic events, until said optimized velocity field satisfies a condition.

Abstract: A coupling for no-hub pipe segments has a shield covering an elastomeric gasket. The shield has a plurality on corrugations oriented transverse to the pipe axis and arranged in discrete areas. These corrugations are separated by corrugations oriented parallel to the pipe axis arranged in discrete areas. Clamping bands securely clamp the shield and gasket to the pipe segments. The pattern of corrugations permits the shield to assume a shouldered shape when the clamping bands are tightened and the coupling is installed on pipes of slightly varying diameter. The gasket is provided with a pattern of thick sealing sectors and adjacent groove sectors laterally spaced relative to thick sealing sectors. This pattern permits the clamping bands and shield to form a restriction impeding the movement of the shield relative to the gasket when the clamping bands are tightened.