The invention provides a bioreactor and methods for tissue cultivation. A bioreactor module comprises a container, a holder adapted to hold a scaffold containing an inherent vascular network, an inlet connectable to a vessel of the inherent vascular network, an inflatable device disposed within the container, and a pair of electrodes attached to opposing walls of the container, wherein the holder is removably receivable in the container and the inflatable device has a conduit extending through a wall of the container. An alternative embodiment provides an in-vitro method for tissue cultivation, comprising seeding an interior and an exterior of a vessel of an inherent vascular network of a scaffold with a first and a second cell type, respectively, and perfusing through the inherent vascular network with culture medium to facilitate compartmentalized co-cultivation of the first and the second cell type in different niches of the tissue. A further embodiment provides an in-vitro method for tissue cultivation, comprising seeding a surface of a scaffold with a predetermined cell type, and perfusing the scaffold with culture medium from an opposite surface of the scaffold through the scaffold and towards the seeded surface to create a nutrient/oxygen gradient and cause migratory diffusion induced penetration of cells towards the opposite surface.

The invention discloses a regulating system and method for multilayer shading film of plastic greenhouse with adjustable shading rate. The upper film of the sunshade is a fully transparent film, while the middle film and the lower film are printed with dots, which are interlaced. Through the measurement and comparison of the warm light in the greenhouse, the combined control of the sunshade film is realized. Not only can it adjust its light blocking rate, but it also has a heat insulating effect when there is a certain amount of air in the film.

The invention discloses a regulating system and method for multilayer shading film of plastic greenhouse with adjustable shading rate. The upper film of the sunshade is a fully transparent film, while the middle film and the lower film are printed with dots, which are interlaced. Through the measurement and comparison of the warm light in the greenhouse, the combined control of the sunshade film is realized. Not only can it adjust its light blocking rate, but it also has a heat insulating effect when there is a certain amount of air in the film.

A variable thermal insulation assembly includes at least one array comprising a plurality of sheets of film, wherein the plurality of sheets are in a stacked arrangement and each sheet is bonded to an adjacent sheet along a plurality of longitudinally extending regions such that each pair of adjacent sheets form a plurality of longitudinally extending cavities between adjacent regions of the adjacent sheets, a support frame comprising end elements, wherein the support frame frames the plurality of sheets, wherein support frame is coupled to the array to support the array such that the array may transition between an expanded state in which the array is expanded, and a compressed state in which the array is compressed, within the plane of the frame along the direction perpendicular to the longitudinal axis such that the longitudinally extending cavities are expanded or compressed, wherein in the expanded state, the front edge conforms to one of the second end of the support frame or a second front edge of a second array to form a seal that inhibits air flow between the front edge and the one of the second end of the support frame or the second front edge of the second array.

According to various embodiments, there is provided a bioreactor module including a container; a holder removably receivable in the container, the holder adapted to hold a scaffold containing an inherent vascular network; an inlet connectable to a vessel of the inherent vascular network of the scaffold; an inflatable device disposed substantially near a base of the container, the inflatable device having a conduit extending through a wall of the container; and a pair of electrodes attached to opposing walls of the container.

The present disclosure relates to a greenhouse having an inflatable and thermal insulation system. The greenhouse includes a lateral frame, a vertical frame, a top cover, an inflatable and thermal insulation system and a plurality of rotary shafts. The vertical frame is arranged at left and right sides. The lateral frame is arranged above and supported by the vertical frame. The top cover is arranged above the lateral frame. The plurality of rotary shafts are provided at both ends of the lateral frame, and at a top end of the vertical frame. The inflatable and thermal insulation system includes an air compressor, a dust collector, a dehydrator, a dryer, a constant-pressure and air-releasing controller, and a thermal insulation quilt which are communicated with each other in this order through a pipeline. The thermal insulation quilt is provided in the lateral frame and the vertical frame. The greenhouse has a simple structure, reduces manufacture cost and maintenance cost. The greenhouse has an independent air chamber, which provides a stable air layer with less air convection and ensures thermal insulation property.

An inflatable greenhouse panel joiner includes a middle circular tube, a first circular tube, and a second circular tube. Each tube includes an input base and an output base for the user to introduce supporting materials. The first circular tube and the second circular tube both include a pair of filleted edges for the user to slide the panel into the first or second circular tube, respectively. The panel joiner allows the user to join multiple plastic panels with support material to build or modify a greenhouse with minimum effort.

A variable thermal insulation assembly includes a plurality of sheets of film, wherein each sheet is bonded to an adjacent sheet along a plurality of longitudinally extending regions to form a plurality of longitudinally extending cavities, wherein the plurality of flexible sheets of each of the thermal cell arrays are formed of an electrically insulative material that is coated on one side with an electrically conductive material, a controller electrically coupled to the plurality of flexible sheets and configured to apply an electric potential difference between electrically conductive material of each pair of flexible sheets such that the electrically conductive coatings of the pair of flexible sheets attract each other to cause the thermal cell array to transition from an expanded state to a compressed state.

A variable thermal insulation assembly includes at least one array comprising a plurality of sheets of film, wherein the plurality of sheets are in a stacked arrangement and each sheet is bonded to an adjacent sheet along a plurality of longitudinally extending regions such that each pair of adjacent sheets form a plurality of longitudinally extending cavities between adjacent regions of the adjacent sheets, a support frame comprising end elements, wherein the support frame frames the plurality of sheets, wherein support frame is coupled to the array to support the array such that the array may transition between an expanded state in which the array is expanded, and a compressed state in which the array is compressed, within the plane of the frame along the direction perpendicular to the longitudinal axis such that the longitudinally extending cavities are expanded or compressed, wherein in the expanded state, the front edge conforms to one of the second end of the support frame or a second front edge of a second array to form a seal that inhibits air flow between the front edge and the one of the second end of the support frame or the second front edge of the second array.

The present disclosure is directed to a new and improved system and method for on-demand insulation, which may be deployed layers of a double-layered window. An on-demand thermal insulator system has a body that is configured to transition between a collapsed form non-deployed state and a deployed state. The body while in the non-deployed state allows a transfer of thermal energy through a defined boundary. The body while in the deployed state in resisting the transfer of thermal energy resists transfer through the defined boundary. In particular configurations, the body has a layer disposed between two material that receives fluid when transitioning from the non-deployed state to the deployed state.