Abstract: An absorber tube for a parabolic trough solar power plant is described. The absorber tube includes a glass pipe that extends from a first end to a second end of the parabolic trough. A helical pipe is enclosed within the glass pipe. The helical pipe is configured to hold water. A sand filled pipe is surrounded by the helical pipe. The absorber tube further includes an inner pipe, centered within the sand filled pipe and the inner pipe extends from the first end to the second end of the parabolic trough along a central axis of the glass pipe. A solenoid valve is connected between the helical pipe and the inner pipe. The solenoid valve is configured to block the water from entering the inner pipe during periods of high solar irradiance and release the water to the inner pipe during periods of low solar irradiance.

Abstract: This disclosure relates to a lightweight authentication service, system and method that securely authenticates the identity of a secure user equipment (UE) or a device in a communication network system. The service and associated methods work by creating two partial secrets namely a first partial secret and a second partial secret. The first partial secret is generated by the manufacturer or the owner of the UE, which is stored on a secure location on the UE and the second partial secret is stored in a database storage system on a server in a cloud running an authentication service. The encryption of information elements is done by multiplying the information elements with the square of random numbers, the encrypted secrets are randomized and before transmission on the channel. The disclosure also describes a receiver UE that could either request an authentication service, running in a cloud, to authenticate a sender UE.

Abstract: An absorber tube for a parabolic trough solar power plant is described. The absorber tube includes a glass pipe that extends from a first end to a second end of the parabolic trough. A helical pipe is enclosed within the glass pipe. The helical pipe is configured to hold water. A sand filled pipe is surrounded by the helical pipe. The absorber tube further includes an inner pipe, centered within the sand filled pipe and the inner pipe extends from the first end to the second end of the parabolic trough along a central axis of the glass pipe. A solenoid valve is connected between the helical pipe and the inner pipe. The solenoid valve is configured to block the water from entering the inner pipe during periods of high solar irradiance and release the water to the inner pipe during periods of low solar irradiance.

Abstract: An absorber tube for a parabolic trough solar power plant is described. The absorber tube includes a glass pipe that extends from a first end to a second end of the parabolic trough. A helical pipe is enclosed within the glass pipe. The helical pipe is configured to hold water. A sand filled pipe is surrounded by the helical pipe. The absorber tube further includes an inner pipe, centered within the sand filled pipe and the inner pipe extends from the first end to the second end of the parabolic trough along a central axis of the glass pipe. A solenoid valve is connected between the helical pipe and the inner pipe. The solenoid valve is configured to block the water from entering the inner pipe during periods of high solar irradiance and release the water to the inner pipe during periods of low solar irradiance.

Abstract: An apparatus comprising a resonator structure comprising a first transmission line and first two symmetric ring-shaped stubs with substantially equal width and length, placed substantially in a middle of the first transmission line. The apparatus further comprises a cross-coupling line structure for induction of crosstalk, the cross-coupling line structure comprising a second transmission line and second two symmetric ring-shaped stubs, wherein the second transmission line is coupled to a DC or pulsed voltage source.

Abstract: A method for planning and cost engineering using an artificial intelligence may be provided. The method may include receiving one or more input documents, the input documents including at least architectural design information. The method may further include converting the input documents into an image file and automatically setting a scale unit based on at least one known measurement of the input documents. The method may further verify the scale unit, automatically measure one or more lengths and one or more areas of the image file based on the architectural design information; and automatically label the one or more measured lengths and one or more measured areas on the image file to generate a labeled image.

Abstract: An absorber tube for a parabolic trough solar power plant is described. The absorber tube includes a glass pipe that extends from a first end to a second end of the parabolic trough. A helical pipe is enclosed within the glass pipe. The helical pipe is configured to hold water. A sand filled pipe is surrounded by the helical pipe. The absorber tube further includes an inner pipe, centered within the sand filled pipe and the inner pipe extends from the first end to the second end of the parabolic trough along a central axis of the glass pipe. A solenoid valve is connected between the helical pipe and the inner pipe. The solenoid valve is configured to block the water from entering the inner pipe during periods of high solar irradiance and release the water to the inner pipe during periods of low solar irradiance.

Abstract: A feeder system includes a donut-ring-shaped first wheel having a first groove recessed below its top surface, with a first hopper positioned above to receive material. A first conduit connects the hopper bottom to the groove, defining a feeding path. A mixer unit receives materials, connected to the first groove via a first suction head. A first motor rotates the first wheel, transferring material from hopper to groove to mixer unit. A donut-ring-shaped second wheel includes a second groove, second hopper, and second conduit. A second suction head connects this groove to the mixer unit, while a second motor enables wheel rotation for material transfer. The mixer unit combines both materials. The feeder system implements coaxial wheel arrangement with independent material flow control, enabling independent powder delivery for additive manufacturing applications.

Abstract: A check valve having a through-flow grooved poppet is provided in which the poppet includes a plurality of helically-oriented grooves around the exterior surface of the poppet, as well as a set of poppet apertures. When the check valve is displaced from a closed position, fluid flows from a first port to a second port by passing through both the set of poppet apertures and the plurality of helically-oriented groves positioned on the exterior of the poppet. The poppet thus provides multiple flow paths which improves the performance of the check valve by reducing the pressure drop upon activation.

Abstract: A magnetic nanofluid that includes magnetic transition metal ferrite nanoparticles, ferroelectric nanoparticles, and a carrier fluid, and a method of changing the temperature of an object (e.g., heating or cooling) using the magnetic nanofluid. The magnetic transition metal ferrite nanoparticles and ferroelectric nanoparticles can be present as a composite comprising both types of nanoparticles. The use of the magnetic nanofluid is associated with an increase in the Nusselt number in the presence of a magnetic field.

Abstract: A magnetic nanofluid that includes magnetic transition metal ferrite nanoparticles, ferroelectric nanoparticles, and a carrier fluid, and a method of changing the temperature of an object (e.g., heating or cooling) using the magnetic nanofluid. The magnetic transition metal ferrite nanoparticles and ferroelectric nanoparticles can be present as a composite comprising both types of nanoparticles. The use of the magnetic nanofluid is associated with an increase in the Nusselt number in the presence of a magnetic field.

Abstract: A magnetic nanofluid that includes magnetic transition metal ferrite nanoparticles, ferroelectric nanoparticles, and a carrier fluid, and a method of changing the temperature of an object (e.g., heating or cooling) using the magnetic nanofluid. The magnetic transition metal ferrite nanoparticles and ferroelectric nanoparticles can be present as a composite comprising both types of nanoparticles. The use of the magnetic nanofluid is associated with an increase in the Nusselt number in the presence of a magnetic field.

Abstract: A tower garden for vertical farming includes a vertical column with a plurality of vertical growth modules. The plurality of vertical growth modules are stacked over and connected to each other in a vertical direction and are configured to grow plants in the vertical direction. The tower garden further includes a base positioned below the vertical column. The base is configured to receive a reservoir including an agricultural medium. The tower garden further includes a perforated hose extending from the base of the vertical column in the vertical direction. The perforated hose is configured as a conduit for the agricultural medium to flow upwards and cascade over roots of the plants. Each growth module includes a plastic pocket with a hole.

Abstract: A tower garden for vertical farming includes a vertical column with a plurality of vertical growth modules. The plurality of vertical growth modules are stacked over and connected to each other in a vertical direction and are configured to grow plants in the vertical direction. The tower garden further includes a base positioned below the vertical column. The base is configured to receive a reservoir including an agricultural medium. The tower garden further includes a perforated hose extending from the base of the vertical column in the vertical direction. The perforated hose is configured as a conduit for the agricultural medium to flow upwards and cascade over roots of the plants. Each growth module includes a plastic pocket with a hole.

Abstract: A tower garden for vertical farming includes a vertical column with a plurality of vertical growth modules. The plurality of vertical growth modules are stacked over and connected to each other in a vertical direction and are configured to grow plants in the vertical direction. The tower garden further includes a base positioned below the vertical column. The base is configured to receive a reservoir including an agricultural medium. The tower garden further includes a perforated hose extending from the base of the vertical column in the vertical direction. The perforated hose is configured as a conduit for the agricultural medium to flow upwards and cascade over roots of the plants. Each growth module includes a plastic pocket with a hole.

Abstract: A tower garden for vertical farming includes a vertical column with a plurality of vertical growth modules. The plurality of vertical growth modules are stacked over and connected to each other in a vertical direction and are configured to grow plants in the vertical direction. The tower garden further includes a base positioned below the vertical column. The base is configured to receive a reservoir including an agricultural medium. The tower garden further includes a perforated hose extending from the base of the vertical column in the vertical direction. The perforated hose is configured as a conduit for the agricultural medium to flow upwards and cascade over roots of the plants. Each growth module includes a plastic pocket with a hole.

Abstract: A tower garden for vertical farming includes a vertical column with a plurality of vertical growth modules. The plurality of vertical growth modules are stacked over and connected to each other in a vertical direction and are configured to grow plants in the vertical direction. The tower garden further includes a base positioned below the vertical column. The base is configured to receive a reservoir including an agricultural medium. The tower garden further includes a perforated hose extending from the base of the vertical column in the vertical direction. The perforated hose is configured as a conduit for the agricultural medium to flow upwards and cascade over roots of the plants. Each growth module includes a plastic pocket with a hole.

Abstract: A tower garden for vertical farming includes a vertical column with a plurality of vertical growth modules. The plurality of vertical growth modules are stacked over and connected to each other in a vertical direction and are configured to grow plants in the vertical direction. The tower garden further includes a base positioned below the vertical column. The base is configured to receive a reservoir including an agricultural medium. The tower garden further includes a perforated hose extending from the base of the vertical column in the vertical direction. The perforated hose is configured as a conduit for the agricultural medium to flow upwards and cascade over roots of the plants. Each growth module includes a plastic pocket with a hole.

Abstract: A tower garden for vertical farming includes a vertical column with a plurality of vertical growth modules. The plurality of vertical growth modules are stacked over and connected to each other in a vertical direction and are configured to grow plants in the vertical direction. The tower garden further includes a base positioned below the vertical column. The base is configured to receive a reservoir including an agricultural medium. The tower garden further includes a perforated hose extending from the base of the vertical column in the vertical direction. The perforated hose is configured as a conduit for the agricultural medium to flow upwards and cascade over roots of the plants. Each growth module includes a plastic pocket with a hole.