A portable inflatable golf studio including an arcuate shaped roof panel, first and second side panels, a floor panel, a front panel, a back panel, a projector screen, a projector, and a tracking system. The first and second side panels are positioned parallel from one another and are attached to the arcuate shaped roof panel, wherein one of the first and second side panels defines a cavity configured to receive a television monitor. The floor panel configured to connect the first and second side panels to one another. The front panel removable attached to the arcuate shaped roof panel and the first and second side panels. The back panel positioned parallel to the front panel and attached to the arcuate shaped roof panel and the first and second side panels. Each panel includes one or more of inflatable sections.

A portable inflatable golf studio including an arcuate shaped roof panel, first and second side panels, a floor panel, a front panel, a back panel, a projector screen, a projector, and a tracking system. The first and second side panels are positioned parallel from one another and are attached to the arcuate shaped roof panel, wherein one of the first and second side panels defines a cavity configured to receive a television monitor. The floor panel configured to connect the first and second side panels to one another. The front panel removable attached to the arcuate shaped roof panel and the first and second side panels. The back panel positioned parallel to the front panel and attached to the arcuate shaped roof panel and the first and second side panels. Each panel includes one or more of inflatable sections.

A lighting system is for providing photosynthetically stimulating artificial light to a specified target area where such artificial light is needed. The lighting system has at least one luminaire with a light source. The luminaire emits photosynthetically stimulating light at a narrow beam angle of less than and including 20° (FWHM). The lighting system has means for positioning the at least one luminaire at a distance of minimum 20 m from the specified target area measured in a light beam direction, and the luminaire is adapted to illuminate the specified target area with a minimum photosynthetic photon flux density of 140 μmol/s/m.sup.2. A method is for improving the growth conditions for plants in need of light at a specified target area by exposing the plants to a photosynthetically artificial light from a light source.

A long-span structure engaged with a plurality of first and second transportation devices for moving the long span structure. The transportation devices travel along parallel, longitudinally-oriented first and second tracks; moving the structure between a first position and a second position. A first region of the structure is fixed to each first transportation device. A second region of the structure is secured to each second transportation device via a bearing assembly. The first and second regions of the structure are laterally spaced apart. When the long-span structure thermally expands or contracts, a slider plate of each bearing assembly moves laterally relative to the rest of the bearing assembly. Growth of the structure in a predictable direction is forced by keeping the first region thereof fixed against lateral movement with the first transportation devices and allowing movement of the second region thereof via the bearing assemblies on the second transportation devices.

A long-span structure engaged with a plurality of first and second transportation devices for moving the long span structure. The transportation devices travel along parallel, longitudinally-oriented first and second tracks; moving the structure between a first position and a second position. A first region of the structure is fixed to each first transportation device. A second region of the structure is secured to each second transportation device via a bearing assembly. The first and second regions of the structure are laterally spaced apart. When the long-span structure thermally expands or contracts, a slider plate of each bearing assembly moves laterally relative to the rest of the bearing assembly. Growth of the structure in a predictable direction is forced by keeping the first region thereof fixed against lateral movement with the first transportation devices and allowing movement of the second region thereof via the bearing assemblies on the second transportation devices.

For an enclosure including a ground area (2), a spectator area (3) around the ground area and a plurality of bearing points (12) around and above the spectator area, the method of mounting a roof structure comprises: assembling a tension ring (14) at the level of the ground area, the tension ring comprising at least one first cable extending along the tension ring and a plurality of connectors (15) spaced along the tension ring; attaching a plurality of second cables (13) to the plurality of connectors, each second cable having a first end connected to a respective one of the connectors and extending radially and outwardly from the tension ring, each second cable being associated with a respective one of the bearing points (12); and lifting the tension ring by pulling the connectors (15) by the second cables (13).

For an enclosure including a ground area (2), a spectator area (3) around the ground area and a plurality of bearing points (12) around and above the spectator area, the method of mounting a roof structure comprises: assembling a tension ring (14) at the level of the ground area, the tension ring comprising at least one first cable extending along the tension ring and a plurality of connectors (15) spaced along the tension ring; attaching a plurality of second cables (13) to the plurality of connectors, each second cable having a first end connected to a respective one of the connectors and extending radially and outwardly from the tension ring, each second cable being associated with a respective one of the bearing points (12); and lifting the tension ring by pulling the connectors (15) by the second cables (13).

A portable training studio is disclosed. The portable training studio includes an expandable structure that is reconfigurable between a transport configuration and a use configuration. The expandable structure includes: a frame; a first door that is pivotably connected to the frame such that the first door is movable between an open position and a closed position; and a first deck that is pivotably connected to the frame such that the first deck is movable between an open position and a closed position.

A portable training studio is disclosed. The portable training studio includes an expandable structure that is reconfigurable between a transport configuration and a use configuration. The expandable structure includes: a frame; a first door that is pivotably connected to the frame such that the first door is movable between an open position and a closed position; and a first deck that is pivotably connected to the frame such that the first deck is movable between an open position and a closed position.

A shooting stall includes a first wall, a second wall, and an air permeable barrier. The first wall includes an upstream end, a downstream end, and a side surface that extends between the upstream end and the downstream end. The second wall is disposed substantially parallel to the first wall, and the second wall includes an upstream end, a downstream end, and a side surface facing the first wall that extends between the upstream end and the downstream end. The air permeable member is disposed between the first wall and the second wall.