An environment control house (1 ) which can have improved strength by employing a multifaceted structure. The environment controlled greenhouse (1 ) comprises: a main body portion (10 ) and a pair of wall portions (20), wherein the main body portion (10 ) comprises: a top surface portion (101 ) formed into a rectangular shape and disposed at the topmost portion; a pair of rectangular upper skirt surface portions (102 ) connectedly installed to respective edges in the transverse direction of the top surface portion (101); and a pair of rectangular lower skirt surface portions (103 ) connectedly installed to an edge in the installation direction of the respective upper skirt surface portions (102 ) and disposed in a sloped manner with respect to an installation surface (L).

Example implementations include a system and method of using plastic from bodies of water and creating a floating platform by collecting plastic from a body of water, cleaning the collected plastic, melting and compacting the plastic, molding a plurality of hexagonal blocks from the compacted plastic, stacking the plurality of hexagonal blocks, wherein a system of springs and an energy storage device is provided between each of the plurality of hexagonal blocks, and coating the stacked blocks with a non-toxic material. Through the use of various onboard functionalities, energy may be generated to regulate temperature and provide electricity, oxygen may be supplied, and water may be purified.

A polytunnel structure is described which comprises a plurality of rows of leg members, and a plurality of cover support members, each cover support member being supported at one end by a leg of one of the rows, and at its opposite end by a corresponding leg of an adjacent one of the rows, wherein at least one of the cover support members is of tubular form of non-circular cross-sectional shape having a major axis and a minor axis, wherein, in use, the minor axis extends generally parallel to a ground surface upon which the polytunnel structure is used, and the major axis extends perpendicularly to the minor axis.

Top furling automated retractable greenhouse cover is a retractable cover for a greenhouse that is mounted on top of the greenhouse. Top furling automated retractable greenhouse cover comprises: a spine clamp, a left furling cover assembly, a right furling cover assembly, a hinge pin assembly, and an electrical control box. Left and right furling assemblies each comprise a curtain or cover, a furling rod, a furling motor, and a support arm. Electrical control box sends electronic signals to cause left and right covers or curtains to furl above the greenhouse when retracted and to unfurl down to the ground when extended to cover the greenhouse. The top-mounted design allows efficient use of gravity to apply tension to the furled rolls.

To provide a polycarbonate resin having an excellent hue and high heat stability, and a production method and a film thereof.

The polycarbonate resin has a carbonate constituent unit represented by the following formula (A), wherein the resin contains a terminal group represented by the following formula (1) or (2) and 0.1 to 500 ppm of an aromatic monohydroxy compound.

##STR00001##

(In the formula (1), R.sub.1 is an alkyl group having 6 to 15 carbon atoms which may be substituted.)

##STR00002##

(In the formula (2), R.sub.2 and R.sub.3 are each independently an alkylene group having 1 to 12 carbon atoms which may be substituted. R.sub.4 is a hydrogen atom or alkyl group having 1 to 12 carbon atoms which may be substituted. n is an integer of 1 to 20.)

A system for adjusting tension on fabric panels between two structural members of a fabric panel structure is disclosed. The system includes a rib that extends outwards from the structural members, a first keder rail located adjacent to the rib, a second keder rail located opposite to the rib of the first keder rail, and a fastener that passes through apertures in the first keder rail, the rib, and second keder rail to secure the keder rails against the rib. Preferably, the fastener is adjustable to allow the keder rails to be opened and closed to assist with installing or replacing fabric panels. Alternate embodiments can secure one of the keder rails directly to the structural member without the use of the rib.

An inflatable greenhouse formed from elements constructed of inflatable compartments which is entirely self-supporting when inflated is disclosed. The greenhouse has a double-walled structure of flexible sheet material which gives the greenhouse structural rigidity when inflated and which increases the thermal protection provided by the greenhouse. The walls of the greenhouse are made of a transparent or translucent plastic material to allow optimal light transmission for photosynthetic plants or of a light filtering or opaque plastic material for light-sensitive plants and animals. The greenhouse has an access door through the wall to allow easy access to the interior of the structure. The inflatable greenhouse has a foundation which is separately inflatable with a fluid, such as water, for stabilizing and anchoring the greenhouse against movement by wind or storms.

Improving photosynthesis and light capture increases crop yield and paves a sustainable way to meet the growing global food demand. A spectral-shifting microphotonic film is provided particularly for applications to improved plant growth, for example, as a greenhouse envelope. The spectral-shifting microphotonic film can be scalable manufactured for augmented photosynthesis. By breaking the intrinsic propagation symmetry of light, the photonic microstructures provided in the film can extract 89% of the internally generated light and deliver most of that into one direction towards photosynthetic organisms. The microphotonic film augments crop production (e.g., lettuce) by more than 20% in both indoor facilities with electric lighting and in a greenhouse with natural sunlight, providing a way to increase crop production efficiency in controlled environments.

A set of methods and apparatus for efficiently pressurizing and ventilating an air-supported greenhouse or other structure requiring pressurization and ventilation. A method for efficiently pressurizing and ventilating an air-supported structure comprises directing any external wind flow and external wind pressure into mechanical flow means, such as a fan, or fans in parallel, operating in the intake direction, and into the internal space of the air-supported structure and out of the internal space of the air-supported structure through internal pressure regulating exhaust means, whereby the internal space of the structure will be ventilated and pressurized with the assistance of any external wind and the reliability of mechanical flow means (fans). This method allows for the efficient, effective, and economical cooling, through ventilation, of a protected space created by a light permeable membrane (cover), which is supported only by internal air pressure against the weight of the membrane and dynamic pressures of the external wind, itself. Apparatus for directing any external wind flow and external wind pressure into mechanical flow means are disclosed. Methods and apparatus for internal pressure regulation are also disclosed. Some benefits are less power consumption, minimal internal static pressure (just enough to overcome the external wind), less potential film breakage (than conventional frame-supported poly greenhouses), more light transmission, less cost, and more portability.

A greenhouse building has perimeter wall frames constituted by linear materials such as single pipes, and roof frames constituted by tension wires that are extended in a stretched state in the longitudinal and crosswise directions. The tension force of the tension wires is received by the installation surface through anchoring tension wires. Only compression force acts on support posts of the wall frames and substantially no bending force acts thereon. A large building can be easily constructed using linear materials such as single pipes with a small diameter. A large greenhouse with high light receiving efficiency can be easily constructed without using heavy building materials such as steel frame materials.