Abstract: A Wi-Fi device in a WLAN network includes a processor and a transceiver adapted to be coupled to an antenna, and a power saving medium access in congested network environments algorithm that is activated after a Wi-Fi connection is established with its access point (AP). A Traffic Indication Map (TIM) bitmap in a TIM information element received in a beacon frame from the AP is analyzed to determine whether more than a predetermined number of bits (X) are set to indicate the AP has ?1 buffered frame for ones of the Wi-Fi devices to conclude whether the WLAN is in a congested environment. When in a congested environment, transmissions responsive to the beacon are postponed by entering a sleep mode for a random period of time (P). After P expires, the sleep mode is exited and a poll frame is transmitted to the AP to try to gain medium access.

Abstract: An irrigation dripper, comprises an external elongated hollow structure having one or more rigid wall and one or more flexible walls, an internal elongated structure introduced into the external structure to form a pathway for flow between the internal structure and the walls, an inlet for providing water to the pathway, and an outlet on the external structure for allowing water to drip out of the pathway.

Abstract: A method of irrigation comprises supplying water to an inclined irrigation pipe provided with a plurality of drippers such that a pressure at a highest level of the inclined irrigation pipe is at most 200 cm H2O.

Abstract: A method of irrigation comprises supplying water to an inclined irrigation pipe provided with a plurality of drippers such that a pressure at a highest level of the inclined irrigation pipe is at most 200 cm H2O.

Abstract: A system for fabricating an irrigation dripper, comprises several processing stations. One or more longitudinal drilling stations drill in an elongated extruded body of an irrigation dripper a first bore and a second bore, wherein the second bore is contiguous to the first bore and is smaller in diameter than the first bore. An additional drilling station drills an additional bore in the body to connect the first bore with an external surface of the elongated body. An assembling station inserts an extruded rod through the first and the second bores, such that the second bore holds a distal end of the rod to maintain a gap between the rod and an inner wall of the first bore.

Abstract: A system for sensing water status in soil includes a porous material selected for actively proliferating root growth and a water status sensor that is hydraulically coupled to the porous material. The porous material is configured to have an area of at least 0.025 m2.

Abstract: A hydrogel includes a cross-linked polymer selected from the group consisting of polyacrylic acid, polyacrylamide and combinations thereof, the hydrogel including cross-links selected from residues of at least one difunctional acrylic material selected from the group consisting of N,N-methylene bis acrylamide (MBA), N,N-methylene bis acrylamide (TTEGDA) and combinations thereof. Further provided are methods of growing a plant using the hydrogel as a substrate.

Abstract: A method of irrigation comprises supplying water to an inclined irrigation pipe provided with a plurality of drippers such that a pressure at a highest level of the inclined irrigation pipe is at most 200 cm H2O.

Abstract: A plant growing container includes a housing comprising side walls defining a cavity and configured for receiving a plant. The housing contains at least two layers of hydrogel separated by at least one layer of spacing material. The container additionally includes an elongated element that penetrates across the at least two layers of hydrogel and across the at least one layer of spacing material. The elongated element is configured as an air channel that transports air from outside the cavity inwards.

Abstract: A method of irrigation is disclosed. The method comprises supplying water to an inclined irrigation pipe provided with a plurality of drippers. The water is supplied such that a pressure at a highest level of the inclined irrigation pipe is at most 90 cm H2O.

Abstract: Disclosed is an agrochemical delivery unit comprising an impermeable cell which is a cell made of material that is impermeable to water; an agrochemical within the impermeable cell; and a wick comprising a hydrogel, said wick having a portion located within the impermeable cell and a portion located outside of the impermeable cell. Also disclosed is an agrochemical delivery unit comprising (a) a cell comprising two or more cell wall segments wherein at least one segment is impermeable to water and at least one segment is permeable to water; and (ii) an agrochemical within the cell. The invention provides methods of making and using the units.

Abstract: A method of irrigation is disclosed. The method comprises supplying water to an inclined irrigation pipe provided with a plurality of drippers. The water is supplied such that a pressure at a highest level of the inclined irrigation pipe is at most 90 cm H2O.

Abstract: A computerized method for cross-domain collaborative revision management of a common product. The method comprises: Monitoring a plurality of local revisions for each of a plurality of projects associated with the common product, each of the plurality of projects managed in one of a plurality of domain-specific configuration management tools; creating a collaborative baseline within a collaborative relationship hub synchronizing between a group of the plurality of local revisions selected from each of the plurality of projects; and assembling instructions of generating the common product according to the collaborative baseline.

Abstract: The present invention provides a bead comprising: i) an external zone comprising a super absorbent polymer (SAP) that is capable of absorbing at least about 5 times its weight in water, surrounding ii) at least one internal zone comprising a core that contains at least one agrochemical, wherein the external zone is permeable to oxygen when hydrated, or the internal zone is formulated to release the at least one agrochemical into the external zone over a period of at least about one week when the hydrogel of the external zone is hydrated. The present invention also provides methods of using beads of the invention.

Abstract: In some embodiments, the invention provides a unit for delivery of agrochemicals to the roots of a plant comprising: one or more root development zones; optionally, one or more agrochemical zones; and a pesticide; wherein the agrochemical zones are formulated to release at least one agrochemical into the root development zones in a controlled release manner when the root development zones are swelled; and wherein the dry weight ratio of the root development zones to the agrochemical zones in a dry unit is 0.05:1 to 20:1, or wherein the total volume of the root development zones in the unit is at least 0.2 mL when the unit is fully swelled.

Abstract: Disclosed is an agrochemical delivery unit comprising an impermeable cell which is a cell made of material that is impermeable to water; an agrochemical within the impermeable cell; and a wick comprising a hydrogel, said wick having a portion located within the impermeable cell and a portion located outside of the impermeable cell. Also disclosed is an agrochemical delivery unit comprising (a) a cell comprising two or more cell wall segments wherein at least one segment is impermeable to water and at least one segment is permeable to water; and (ii) an agrochemical within the cell. The invention provides methods of making and using the units.

Abstract: A unit for delivery of agrochemicals to the roots of a plant comprising one or more root development zones, and one or more agrochemical zones containing at least one agrochemical, wherein the agrochemical zones are formulated to release the at least one agrochemical into the root development zones in a controlled release manner when the root development zones are hydrated, and wherein the weight ratio of the root development zones to the agrochemical zones in a dry unit is 0.05:1 to 0.32:1.

Abstract: The present invention provides a bead comprising: i) an external zone comprising a super absorbent polymer (SAP) that is capable of absorbing at least about 5 times its weight in water, surrounding ii) at least one internal zone comprising a core that contains at least one agrochemical, wherein the external zone is permeable to oxygen when hydrated, or the internal zone is formulated to release the at least one agrochemical into the external zone over a period of at least about one week when the hydrogel of the external zone is hydrated. The present invention also provides methods of using beads of the invention.

Abstract: A tensiometer for use in determining matric potential of a soil includes a water inlet; a hydraulic coupler comprising a porous material for providing hydraulic coupling between water that enters the inlet and the soil; and a septum that seals water that enters the inlet against ingress of air via the porous material.

Abstract: A computerized method for cross-domain collaborative revision management of a common product. The method comprises: Monitoring a plurality of local revisions for each of a plurality of projects associated with the common product, each of the plurality of projects managed in one of a plurality of domain-specific configuration management tools; creating a collaborative baseline within a collaborative relationship hub synchronizing between a group of the plurality of local revisions selected from each of the plurality of projects; and assembling instructions of generating the common product according to the collaborative baseline.