5 results about "Water uptake" patented technology

The portable water harvesting device includes a vacuum-compatible water collection unit and a detachable lid incorporating a metal-organic framework (MOF) unit. The water collection unit comprises a vacuum pump connection port and a drain valve for extracting collected water. The detachable lid contains MOFs in the form of beads or dispersed within a porous medium, encapsulated by a vapor-permeable, MOF-retaining filter membrane. A solar-absorbing metal plate is affixed to the outer surface of the lid to facilitate thermal activation. The lid is removably attached to the collection unit via a screw-type or snap-fit closure, forming an airtight seal during vacuum desorption. Enhanced exposure of MOFs to ambient air improves water uptake, and vacuum-assisted depressurization accelerates desorption. The device is lightweight, power-independent, and suitable for deployment in off-grid or water-scarce environments such as islands, boats, or emergency lifeboats.

The invention relates to curable compositions made of reaction resins, comprising polymerizable functional cyanate ester groups and poly(diorgano)siloxanes with phenolic hydroxy groups; to a method for producing the same; and to cured materials and composites obtainable therefrom and having a low water uptake, a high fracture toughness and a high glass transition temperature.

Irrigation needs assessment systems and methods may determine irrigation needs of one or more participants. The irrigation needs assessment system may determine irrigation needs based on weather conditions, forecast weather conditions, plant water uptake, and ground moisture content information. Evaporation rate information may be provided from one or more other participants of the irrigation needs assessment service.

An irrigation needs assessment system and method used to determine irrigation needs of one or more participants. The irrigation needs assessment system determines irrigation needs based on weather conditions, forecast weather conditions, plant water uptake, and ground moisture content information. Evaporation rate information is also provided from one or more other participants of the irrigation needs assessment service.

The utility model belongs to the technical field of soil systems, and discloses an ecological sponge soil system which comprises surface soil arranged on a base field, a water storage layer is arranged below the surface soil, the ecological sponge soil system further comprises a protection mechanism arranged on the base field and used for protecting a water source of the water storage layer, and the protection mechanism comprises a fixing plate fixedly connected into the base field. A plurality of through holes are formed in the fixing plate, a protection plate is connected to the side, away from surface soil, of the fixing plate through a sliding assembly, and a plurality of protection holes are formed in the protection plate. According to the ecological sponge soil system, the protection mechanism is arranged, and the size of the through holes is controlled by changing the staggered quantity of the protection holes and the through holes, so that the permeation amount of the water source of the water storage layer to surface soil is further changed, the evaporation amount of the water source of the water storage layer is reduced while the requirement for the water source drawing amount of plants is met, and the soil quality is improved. Therefore, the use efficiency of the water source of the water storage layer is improved.