An aerosol generating device is provided, including a housing configured to receive an aerosol-forming substrate having an internal cavity; a heating element configured to be received within the internal cavity of the substrate, and a positioning mechanism coupled to the heating element and to the housing being configured to move the heating element between a plurality of heating positions within the cavity. There is also provided an aerosol generating device including a housing configured to receive an aerosol-forming substrate, a heating element configured to heat a portion of the substrate, and a positioning mechanism configured to move the heating element from a first position next to a first portion of the substrate, to a second position remote from the substrate, and then to a third position next to a second portion of the substrate.

A humidifier includes a tub configured to contain a supply of water and a heater including a first polymer film having an electrically conductive circuit provided upon a surface. The first polymer film is electrically insulating and the tub is formed of molded resin and the heater is molded at least partially within the resin. A respiratory apparatus for delivering a flow of breathable gas to a patient includes the humidifier. A method of humidifying a flow of pressurized breathable gas includes passing the flow of pressurized breathable gas over a supply of water contained in a tub. The tub is formed of molded resin and a heater including a first polymer film having an electrically conductive circuit on a first surface is molded at least partially within the resin.

A system capable of selecting an optimal plant cultivation method mainly includes a plurality of water supply units, a water treatment unit, a plurality of nutrition units, a reactor, a plurality of gas supply units, a liquid storage unit, at least three growth boxes, an information device. A method capable of selecting an optimal plant cultivation method allows participants of a competition in every place of the world to operate the same greenhouse facilities together at the same time, and grow the same plant or a several types of plants at the same time, latitude and location. But, every participant themselves may use the facilities provided in the greenhouse to adjust and control other growing conditions, environmental factors, cultivation methods and nutrition formulas, and the best cultivation method and nutrition formula are selected, thereby finding out the best cultivation method of the plant when the competition is over.

The embodied invention is a framework and expanding cover for a crop row that is designed to provide an enhanced crop growing environment. The framework design utilizes a top and bottom cover with affordable materials that are suitable for large scale production. The design also includes an irrigation, fertilizer, and CO.sub.2 injection system that provide an enhanced environment for plants to grow. The entire system is reducible to a small package to better facilitate use in a broad variety of environmental and personal situations.

The embodied invention is a framework and expanding cover for a crop row that is designed to provide an enhanced crop growing environment. The framework design utilizes a top and bottom cover with affordable materials that are suitable for large scale production. The design also includes an irrigation, fertilizer, and CO.sub.2 injection system that provide an enhanced environment for plants to grow. The entire system is reducible to a small package to better facilitate use in a broad variety of environmental and personal situations.

A canopy treatment system to treat plants is disclosed. In one implementation according to examples of the present disclosure, a method comprises moving a canopy treatment system proximate to a plant to be treated, the canopy treatment system including a hot fluid generating system and a canopy, the canopy defining a treatment region and in fluid communication with the hot fluid generating system. The method further comprises lowering the canopy relative to the hot fluid generating system to position the canopy around the plant with the plant within the treatment region of the canopy; and heating the plant within the canopy.

A canopy treatment system to treat plants is disclosed. In one implementation according to examples of the present disclosure, a method comprises moving a canopy treatment system proximate to a plant to be treated, the canopy treatment system including a hot fluid generating system and a canopy, the canopy defining a treatment region and in fluid communication with the hot fluid generating system. The method further comprises lowering the canopy relative to the hot fluid generating system to position the canopy around the plant with the plant within the treatment region of the canopy; and heating the plant within the canopy.

A canopy treatment system to treat plants is disclosed. In one implementation according to examples of the present disclosure, a canopy treatment system comprises a hot fluid generating system configured to heat a fluid, the hot fluid generating system including a canopy valve; and a canopy in fluid communication with the hot fluid generating system, the canopy defining a treatment region, the canopy valve of the hot fluid generating system selectively positionable to control fluid flow between the hot fluid generating system and the canopy.

A canopy treatment system to treat plants is disclosed. In one implementation according to examples of the present disclosure, a canopy treatment system comprises a hot fluid generating system configured to heat a fluid, the hot fluid generating system including a canopy valve; and a canopy in fluid communication with the hot fluid generating system, the canopy defining a treatment region, the canopy valve of the hot fluid generating system selectively positionable to control fluid flow between the hot fluid generating system and the canopy.

The grounded modular heated cover is disclosed with a first pliable outer layer and a second pliable outer layer, wherein the outer layers provide durable protection, an electrical heating element between the first and the second outer layers, the electrical heating element configured to convert electrical energy to heat energy, a heat spreading layer, and a thermal insulation layer positioned above the active electrical heating element. Beneficially, such a device provides radiant heat, weather isolation, temperature insulation, and solar heat absorption efficiently and cost effectively. The modular heated cover quickly and efficiently removes ice, snow, and frost from surfaces, and penetrates soil and other material to thaw the material to a suitable depth. A plurality of modular heated covers can be connected on a single 120 Volt circuit protected by a 20 Amp breaker. The modular heated covers are grounded for safety using the conductive heat spreading layer.