Abstract: A fluid heating system including a burner unit is operated based on feedback control loops. The fluid heating system comprises a burner unit configured to heat a fluid, a sensor configured to sense a characteristic of the appliance, and a controller coupled to the burner unit and the sensor. The controller includes an electronic processor and a memory. The controller is configured to receive a first signal corresponding to the characteristic from the sensor, determine, based on the first signal, a first feedback loop control, control combustion of the burner unit based on the first feedback loop control, determine, based on the first feedback loop control, a second feedback loop control, and control combustion of the burner unit based on the second feedback loop control.

Abstract: Discharge valve of an aircraft turbomachine, including a discharge gate intended to be mounted pivotably about an axis between a position for closing an air passage orifice and an open position of said orifice, the orifice being formed in an intermediate casing of the turbomachine, the discharge valve including a sealing device having a seal configured to be movably mounted on the intermediate casing and a movement system configured to move the seal between a first position in which the seal is intended to bear against the discharge gate when the gate is in a closure position, and a second position in which the seal is retracted with respect to the air passage orifice when the discharge gate is in an open position.

Abstract: A method for making an RF connector having an outer conductor and an inner conductor includes the steps of plating the outer conductor and the inner conductor of the RF connector with at least one corrosion-resistant metallic material; dispensing and/or injecting a material comprising an epoxy phenol novolac based resin. in a volume between the outer conductor and the inner conductor of the connector; heating the RF connector with the injected material to a temperature between about 150° C. to about 380° C. in a substantially dry nitrogen-based environment; and allowing the RF connector to cool.

Abstract: A method for making an RF connector having an outer conductor and an inner conductor includes the steps of plating the outer conductor and the inner conductor of the RF connector with at least one corrosion-resistant metallic material; dispensing and/or injecting a material comprising an epoxy phenol novolac based resin. in a volume between the outer conductor and the inner conductor of the connector; heating the RF connector with the injected material to a temperature between about 150° C. to about 380° C. in a substantially dry nitrogen-based environment; and allowing the RF connector to cool.

Abstract: A method for making an RF connector having an outer conductor and an inner conductor includes the steps of plating the outer conductor and the inner conductor of the RF connector with at least one corrosion-resistant metallic material; dispensing and/or injecting a material comprising an epoxy phenol novolac based resin. in a volume between the outer conductor and the inner conductor of the connector; heating the RF connector with the injected material to a temperature between about 150° C. to about 380° C. in a substantially dry nitrogen-based environment; and allowing the RF connector to cool.

Abstract: The present invention provides implants useful for treating cartilage and/or osteochondral defects that comprise a plurality of scaffolds arranged in a multi-layer stacked configuration, wherein each scaffold comprises a mesh of polymer fibers and wherein the polymer fibers comprise gelatin, a plant-derived protein, e.g., zein protein, or a combination thereof. Methods for repairing a cartilage and/or an osteochondral defect using implants of the invention are also provided.

Abstract: Sodium cellulose sulfate (NaCS) is employed as a novel GAG mimetic. Schwann cells (SCs) could be used in combination with a scaffold because the SCs can secrete neurotrophic factors stimulating neuron survival and extension of axons. Furthermore, the conduit may be used alone or combination with Schwann cells for spinal cord repair. In addition, the conduit also can be used for peripheral nerve repair. Also described herein are compositions and methods useful for promoting the growth and/or differentiation and/or repair of a cell and/or tissue in the peripheral nervous system, central nervous system, and specifically the spinal cord. In certain aspects, the present disclosure includes a scaffold supporting and promoting growth, differentiation, and/or regeneration and repair. The scaffold in one embodiment closely mimics the natural extracellular matrix (ECM) of the spinal cord.

Abstract: Provided is an electroactive structure and method for growing isolated differentiable cells comprising a three dimensional matrix of fibers formed of a biocompatible synthetic piezoelectric polymeric material, wherein the matrix of fibers is seeded with the isolated differentiable cells and forms a supporting scaffold for growing the isolated differentiable cells, and wherein the matrix of fibers stimulates differentiation of the isolated differentiable cells into a mature cell phenotype on the structure.

Abstract: The present invention relates to a vascularized three dimensional construct for thick tissue, a process for making the construct and to the use of the construct in tissue regeneration and repair and in drug development. The three-dimensional (3-D) tissue technology is used to generate vascularized, biomimetic tissue models in vitro utilizing a biodegradable nanofiber scaffold. The culture system allows the maintenance of long-term survival and function of liver and heart cells. The system utilizes a novel approach to generate structures that mimic in vivo tissue architecture. The system provides a microenvironment for forming 3-D microvascular networks within the nanofiber scaffolds.

Abstract: The present invention provides a firearm component having improved grippability for use with a firearm, such as a pistol, revolver, or other suitable handgun, and a method for manufacturing same. The firearm component hereof includes an abrasive material deposited onto at least a portion thereof. The abrasive material is selected from the group consisting of natural diamond, synthetic diamond, cubic boron nitride, sapphire, and carbide. Preferably, the abrasive material is either natural or synthetic diamond ground down to micron-sized diamond particulates. The diamond particulates are then deposited onto at least a portion of the firearm component by way of electroplating, electroless plating, or brazing.

Abstract: A scaffold for promoting cartilage formation is provided that includes a crosslinked electrospun fiber, wherein the crosslinked electrospun fiber consists essentially of crosslinked gelatin. The crosslinked electrospun fiber is generally crosslinked with a crosslinker, and the crosslinker may be diisosorbide bisepoxide. The crosslinked electrospun fiber may be crosslinked by adding a crosslinker to a solution of gelatin at a desired concentration. The electrospun fiber may advantageously remain intact for 18 days or longer upon being immersed in an aqueous solution. A composition for promoting cartilage formation is also provided that includes the disclosed scaffold and a mesenchymal stem cell (MSC). The disclosed scaffold may include a crosslinked electrospun fiber that includes gelatin and sodium cellulose sulfate (NaCS), e.g., in an amount of up to 5% by weight of the amount of gelatin.

Abstract: A scaffold for promoting cartilage formation is provided that includes a crosslinked electrospun fiber, wherein the crosslinked electrospun fiber consists essentially of crosslinked gelatin. The crosslinked electrospun fiber is generally crosslinked with a crosslinker, and the crosslinker may be diisosorbide bisepoxide. The crosslinked electrospun fiber may be crosslinked by adding a crosslinker to a solution of gelatin at a desired concentration. The electrospun fiber may advantageously remain intact for 18 days or longer upon being immersed in an aqueous solution. A composition for promoting cartilage formation is also provided that includes the disclosed scaffold and a mesenchymal stem cell (MSC). The disclosed scaffold may include a crosslinked electrospun fiber that includes gelatin and sodium cellulose sulfate (NaCS), e.g., in an amount of up to 5% by weight of the amount of gelatin.

Abstract: Provided is an electroactive structure for growing isolated differentiable cells comprising a three dimensional matrix of fibers formed of a biocompatible synthetic piezoelectric polymeric material, wherein the matrix of fibers is seeded with the isolated differentiable cells and forms a supporting scaffold for growing the isolated differentiable cells, and wherein the matrix of fibers stimulates differentiation of the isolated differentiable cells into a mature cell phenotype on the structure.

Abstract: Electrodes, components, apparatuses, and methods for electrochemical machining (ECM) are disclosed. ECM may be employed to provide burr-free or substantially burr-free ECM of electrically-conductive workpieces (e.g. shrouds). As one non-limiting example, the electrically-conductive workpiece may be a shroud that is used as an electrical component in electronics boards. While the ECM components, apparatuses, and methods disclosed herein reduce burrs, ECM can provide imprecise machining and cause stray erosions to occur in the machined electrically-conductive workpiece. In this regard, the electrodes, components, apparatuses, and methods for ECM disclosed herein provide features that allow for precise machining of the machined electrically-conductive workpiece and also allow avoidance of stray erosions in the machined electrically-conductive workpiece.

Abstract: A hydrogel composition is provided that includes crosslinked dextran and dextran sulfate. The hydrogel composition may be included in a matrix that includes an osmotically active material immobilized in the matrix. The hydrogel composition can be combined into superabsorbent preparations that are capable of adsorbing large amounts of water. The superabsorbent preparations have advantages in the use of absorbent materials for physiological fluids, such as diapers, incontinence products, wound dressings and the like, as well as agricultural and environmental applications. In addition, biodegradable superabsorbents of the invention can be prepared.

Abstract: Provided is an electroactive structure for growing isolated differentiable cells comprising a three dimensional matrix of fibers formed of a biocompatible synthetic piezoelectric polymeric material, wherein the matrix of fibers is seeded with the isolated differentiable cells and forms a supporting scaffold for growing the isolated differentiable cells, and wherein the matrix of fibers stimulates differentiation of the isolated differentiable cells into a mature cell phenotype on the structure.

Abstract: A hydrogel composition is provided that includes crosslinked dextran and dextran sulfate. The hydrogel composition may be included in a matrix that includes an osmotically active material immobilized in the matrix. The hydrogel composition can be combined into superabsorbent preparations that are capable of adsorbing large amounts of water. The superabsorbent preparations have advantages in the use of absorbent materials for physiological fluids, such as diapers, incontinence products, wound dressings and the like, as well as agricultural and environmental applications. In addition, biodegradable superabsorbents of the invention can be prepared.

Abstract: Provided is an electroactive structure and method for growing isolated differentiable cells comprising a three dimensional matrix of fibers formed of a biocompatible synthetic piezoelectric polymeric material, wherein the matrix of fibers is seeded with the isolated differentiable cells and forms a supporting scaffold for growing the isolated differentiable cells, and wherein the matrix of fibers stimulates differentiation of the isolated differentiable cells into a mature cell phenotype on the structure.

Abstract: A hydrogel matrix and an osmotically active material immobilized in the matrix can be combined into superabsorbent preparations that are capable of adsorbing large amounts of water. The superabsorbent preparations of the invention have advantages in the use of absorbent materials for physiological fluids, such as diapers, incontinence products, wound dressings and the like, as well as agricultural and environmental applications. In addition, biodegradable superabsorbents of the invention can be prepared.

Abstract: Provided is an electroactive structure and method for growing isolated differentiable cells comprising a three dimensional matrix of fibers formed of a biocompatible synthetic piezoelectric polymeric material, wherein the matrix of fibers is seeded with the isolated differentiable cells and forms a supporting scaffold for growing the isolated differentiable cells, and wherein the matrix of fibers stimulates differentiation of the isolated differentiable cells into a mature cell phenotype on the structure.