An accessible or ADA/ANSI compliant style of portable restroom is provided. The portable restroom includes one or more of the features of: structural supports and/or curved sidewall segments allowing for the use of lighter weight material or construction of thinner walls and roof; improved holding tank structure; improved joints; vertical and horizontal grab bars; grab bar mounts which are molded into the restroom sidewall and facilitate mounting high impact yet flexible tubing; an improved lightweight floor structure, and a floor having upturned flanges which provide an area for attachment of the sidewalls; and integrated recesses in the floor for lift truck forks, among other features.

A panel for a building structure has a predefined curvature. The panel has a generally rectangular shape with a curvature, such that the panel has a convex outer surface and a concave inner surface with a set of side edge regions and a set of end edge regions. The panel is at least one mineral wool fibre slab with a plurality of first strips adhered to the outer surface and a plurality of second strips adhered to the inner surface.

A system may include a first training module configured to train a first skill. A system may include a second training module configured to train a second skill, the second module selectively coupleable to the first training module in a multiple of limited configurations relative to each other.

A modular building structure that utilizes a standard, unmodified intermodal shipping container both for transport of the structural components and as an integral element of the method of construction. A modular structure kit is enclosed in the shipping container, which can be transported using all means that are standard for ISO containers. Using the preferred method of construction, the shipping container can be situated without heavy equipment. Once situated, the shipping container provides the primary support for a permanent elevated structure composed of unique components, assembled using conventional building techniques without the necessary use of heavy or specialized equipment.

A mobile modular dwelling system comprising a floor; a front semicircular sub-assembly secured to the floor, the front semicircular sub-assembly including a pane arrangement; and a rear polygonal sub-assembly also secured to the floor and to the front semicircular sub-assembly. In combination, the front and rear sub-assemblies provide a shelter in the face of prevailing wind and rain, regardless of the direction from which weather may originate, while offering an interior designer a wider latitude of furniture choices than does a semicircular footprint alone.

A ten-device-in-one reconfigurable adjustable carport (capable of functioning as a privacy screen, a wind screen, a cabana, a dog run, a retail-tradeshow booth, an attic, a storage, a picnic table, a kennel, and a carport) comprises: a canopy, roof spines, roof ribs, leg posts, T-shaped joiners and X-shaped joiners spring-snappingly connected to the roof spines and roof ribs and leg posts for configuring the ten-device-in-one carport as a car canopy and a greenhouse and an enclosure and a barrier and a cabana and a privacy room and a privacy screen and a tradeshow booth and a wind barrier, panels, door-frame panel, panel-to-panel-securing brackets and panel-to-post-securing brackets bolted to the panels and the door-frame panel and the roof spines and the roof ribs and the leg posts for configuring the ten-device-in-one carport as a dog run and a greenhouse and an enclosure and a barrier and bleacher shelves to store or display items and an attic to store items off the ground and a hanging cage to house animals off the ground and structures for displaying signs and roof storage, and bracket heads formed into the panel-to-post-securing brackets for automatically centering the bracket-head ends.

A DJ booth for use at events or functions including: a housing; the housing contains sound processing equipment and at least one loudspeaker; and the housing includes wheels at its base for moving the DJ booth across a ground surface. In some embodiments the housing has the outer appearance of a large tape cassette player and further includes a retractable gantry portion which has the appearance of a handle of the tape cassette player.

A DJ booth for use at events or functions including: a housing; the housing contains sound processing equipment and at least one loudspeaker; and the housing includes wheels at its base for moving the DJ booth across a ground surface. In some embodiments the housing has the outer appearance of a large tape cassette player and further includes a retractable gantry portion which has the appearance of a handle of the tape cassette player.

A training apparatus for fast-rope training includes a platform-supporting structure having one or more containers and at least one platform configured for use in fast-rope training. At least one attachment is provided for attaching a fast-rope. The platform-supporting structure is supportable by a surface. The at least one attachment is located higher than the platform and spaced laterally from the platform-supporting structure such that the at least one attachment overhangs the surface so a fast rope can hang from the at least one attachment, past the platform and toward the surface.

One variation of a method includes: ingesting an air sample captured during an air capture period at a target location for collection of a first mixture including carbon dioxide and a first concentration of impurities; conveying the first mixture through a liquefaction unit to generate a second mixture including carbon dioxide and a second concentration of impurities less than the first concentration of impurities; in a methanation reactor, mixing the second mixture with hydrogen to generate a first hydrocarbon mixture comprising a third concentration of impurities comprising nitrogen, carbon dioxide, and hydrogen; conveying the first hydrocarbon mixture through a separation unit configured to remove impurities from the first hydrocarbon mixture to generate a second hydrocarbon a fourth concentration of impurities less than the third concentration of impurities; and depositing the second hydrocarbon mixture in a diamond reactor containing a set of diamond seeds to generate a first set of diamonds.