Abstract: The present disclosure relates to liners and methods of making liners. The liners may be suitable for use with tanks and other storage/containment vessels, such as process tanks, immersion tanks, indoor or outdoor containment pits, gravity feed conduits (e.g., concrete trench, canal, or drain, etc.) for transferring or conveying liquid, grain storage tanks or containers (e.g., dielectric or electrically non-conductive liners for grain storage, etc.), etc.

Abstract: The invention relates to an interactive and multifunctional information unit having autonomous movement that includes a housing (2) having wheels (3) that are driven by gear motors (4) and rechargeable batteries (5) and are actuated by an electronic controller (10). The unit has a computer (6) having a connection to the Internet (7) via Wi-Fi or 3G mobile telephony, and operational movement control is carried out by radio control, a programmed autonomous system and/or distance or long-distance control via Internet. The unit optionally incorporates volumetric and distance sensors (13), a video camera (14), a plug (15) for connection to a grid at a recharging station located in the surrounding area, solar panels (16), LED technology panels (17), a projector device (18), slots (19) for brochures, mechanisms (20) that dispense products, samples or the like, an interphone (21), a defibrillator (22) and a first-aid kit (23) and/or a suction apparatus (24).