Abstract: A system and method for balancing flows of renal replacement fluid is disclosed. The method uses pressure controls and pressure sensing devices to more precisely meter and balance the flow of fresh dialysate and spent dialysate. The balancing system may use one or two balancing devices, such as a balance tube, a tortuous path, or a balance chamber.

Abstract: The present invention relates to a method of improving a mass spectrometer, a module for improving a mass spectrometer and an improved mass spectrometer. The aforementioned method uses machine learning and can greatly reduce the number and timeframe for the elimination of false positives to a couple of hours. Such method can be integrated into a mass spectrometer by inserting a computer module programmed with such method into a mass spectrometer's computer system.

Abstract: Provided are methods and systems for on-ground communication using an electrical power distribution system of an aircraft. Specifically, two broadband over power line (BPL) communication modules are communicatively coupled to an electrical power distribution system of an aircraft at different locations. A communication-initiation request is transmitted between these modules and, in some examples, is used to establish communication between the modules. In more specific examples, the receiving module determines received parameters of the communication-initiation request, which depend, at least in part, on characteristics of the electrical power distribution system. The received parameters are compared with expected parameters, and an operating indication of the electrical power distribution system is generated based on this comparison. In some examples, the operating indication is used to verify configuration of the electrical power distribution system (e.g., during aircraft assembly), service requirements (e.

Abstract: A multi-barrel mortar launcher with an array of barrels and a fire control mechanism, where the array is configured to fire one mortar round from each barrel with substantially the same time-on-target in an impact area having an array of blast radii corresponding to the array of barrels.

Abstract: Provided herein are genetically engineered microbes that include at least a portion of a carbon fixation pathway, and in one embodiment, use molecular hydrogen to drive carbon dioxide fixation. In one embodiment, the genetically engineered microbe is modified to convert acetyl CoA, molecular hydrogen, and carbon dioxide to 3-hydroxypropionate, 4-hydroxybutyrate, acetyl CoA, or the combination thereof at levels greater than a control microbe. Other products may also be produced. Also provided herein are cell free compositions that convert acetyl CoA, molecular hydrogen, and carbon dioxide to 3-hydroxypropionate, 4-hydroxybutyrate, acetyl CoA, or the combination thereof. Also provided herein are methods of using the genetically engineered microbes and the cell free compositions.

Abstract: Provided herein are genetically engineered microbes that include at least a portion of a carbon fixation pathway, and in one embodiment, use molecular hydrogen to drive carbon dioxide fixation. In one embodiment, the genetically engineered microbe is modified to convert acetyl CoA, molecular hydrogen, and carbon dioxide to 3-hydroxypropionate, 4-hydroxybutyrate, acetyl CoA, or the combination thereof at levels greater than a control microbe. Other products may also be produced. Also provided herein are cell free compositions that convert acetyl CoA, molecular hydrogen, and carbon dioxide to 3-hydroxypropionate, 4-hydroxybutyrate, acetyl CoA, or the combination thereof. Also provided herein are methods of using the genetically engineered microbes and the cell free compositions.

Abstract: Provided herein are genetically engineered microbes that include at least a portion of a carbon fixation pathway, and in one embodiment, use molecular hydrogen to drive carbon dioxide fixation. In one embodiment, the genetically engineered microbe is modified to convert acetyl CoA, molecular hydrogen, and carbon dioxide to 3-hydroxypropionate, 4-hydroxybutyrate, acetyl CoA, or the combination thereof at levels greater than a control microbe. Other products may also be produced. Also provided herein are cell free compositions that convert acetyl CoA, molecular hydrogen, and carbon dioxide to 3-hydroxypropionate, 4-hydroxybutyrate, acetyl CoA, or the combination thereof. Also provided herein are methods of using the genetically engineered microbes and the cell free compositions.

Abstract: Disclosed herein are genetically engineered microbes. In one embodiment, a genetically engineered microbe includes a metabolic pathway for the production of an alcohol from an organic acid. For instance, a genetically engineered microbe converts acetate, butyrate, propionate, isobutyrate, valerate, isovalerate, caproate, or phenylacetate, to Ethanol, Butanol, Propanol, Isobutanol, 1-Pentanol, Isoamylalcohol, 1-Hexanol, Phenylethanol, respectively. Also provided herein are methods of using the microbes.

Abstract: Provided herein are genetically engineered microbes that include at least a portion of a carbon fixation pathway, and in one embodiment, use molecular hydrogen to drive carbon dioxide fixation. In one embodiment, the genetically engineered microbe is modified to convert acetyl CoA, molecular hydrogen, and carbon dioxide to 3-hydroxypropionate, 4-hydroxybutyrate, acetyl CoA, or the combination thereof at levels greater than a control microbe. Other products may also be produced. Also provided herein are cell free compositions that convert acetyl CoA, molecular hydrogen, and carbon dioxide to 3-hydroxypropionate, 4-hydroxybutyrate, acetyl CoA, or the combination thereof. Also provided herein are methods of using the genetically engineered microbes and the cell free compositions.

Abstract: Provided herein are genetically engineered archaea. A genetically engineered archaea includes a heterologous polynucleotide that has a promoter operably linked to a coding region, where the coding region encodes a polypeptide having optimal activity below the optimum growth temperature (Topt) of the genetically engineered archaeon. Also provided herein are methods for using genetically engineered archaea and cell-free extracts of such genetically engineered archaea. In one embodiment, the methods include culturing a genetically engineered archaeon at a temperature that is at least 20° C. below the Topt of the genetically engineered archaeon, such that the activity in the genetically engineered archaeon of a polypeptide encoded by the coding region is increased compared to the activity in the genetically engineered archaeon of the polypeptide during growth at a second temperature that is at or near the Topt of the genetically engineered archaeon.

Abstract: The invention facilitates provision of a point-to-point cable connection between first and second points separated by an extended span of water including a first region of shallow water and a second region of relatively deep water. A plurality of ducts are provided from the first point through the first region of the extended span to an offshore termination point between the first and second points. Preferably, the ducts are buried in the seabed to prevent damage. At least one first cable is placed in one of the plurality of ducts to provide a connection between the first point and the offshore termination point. A second cable from the second point is received at the offshore termination point. The first cable is connected to the second cable at the offshore termination point to create the point-to-point cable connection. In one embodiment, the offshore termination point is located on the continental shelf near the transition to deep water.

Abstract: The present invention is a reversion control device including a housing for a stationary vane and a flapper. In one example, the housing includes an expansion chamber to house the stationary vane and the flapper.

Abstract: A method of fracturing a subterranean formation which surrounds a well bore comprises the steps of providing a fracturing fluid, and injecting the fracturing fluid into the well bore at a pressure sufficient to form fractures in the subterranean formation which surrounds the well bore. The pressure is then released from the fracturing fluid, after which the fluid may be removed from the well and the well placed into production. The fracturing fluid comprises an aqueous liquid, a polysaccharide soluble or dispersible in the aqueous liquid in an amount sufficient to increase the viscosity of the aqueous liquid, an enzyme breaker which degrades said polysaccharide at a temperature above 180° F. Fracturing fluid compositions and enzyme breaker systems useful for carrying out the invention are also disclosed.

Abstract: A personal watercraft and an outfitting system for a personal watercraft are disclosed. The personal watercraft includes a cockpit configured to be occupied by a user when using the watercraft; and an item of outfitting coupled to the watercraft at a location at least partially inside of the cockpit, the item of outfitting being configured to help secure the user in the cockpit. The item of outfitting includes a shaped portion configured to contact the user, and a fluid-holding bladder disposed adjacent the shaped portion, wherein the fluid-holding bladder may be selectively filled with a fluid to push the shaped portion against the user to secure the user in the cockpit more tightly.

Abstract: A receiver/stimulus unit for an animal control system is mounted on an animal collar. The unit includes a power supply enclosure for a power source such as a battery separate from a receiver enclosure containing signal receiving circuitry. The power source is in electrical communication with the signal receiving circuitry via an electrical communication path passing on or through a portion of the strap of the collar.

Abstract: A personal watercraft and an outfitting system for a personal watercraft are disclosed. The personal watercraft includes a cockpit configured to be occupied by a user when using the watercraft; and an item of outfitting coupled to the watercraft at a location at least partially inside of the cockpit, the item of outfitting being configured to help secure the user in the cockpit. The item of outfitting includes a shaped portion configured to contact the user, and a fluid-holding bladder disposed adjacent the shaped portion, wherein the fluid-holding bladder may be selectively filled with a fluid to push the shaped portion against the user to secure the user in the cockpit more tightly.

Abstract: The invention facilitates provision of a point-to-point cable connection between first and second points separated by an extended span of water including a first region of shallow water and a second region of relatively deep water. A plurality of ducts are provided from the first point through the first region of the extended span to an offshore termination point between the first and second points. Preferably, the ducts are buried in the seabed to prevent damage. At least one first cable is placed in one of the plurality of ducts to provide a connection between the first point and the offshore termination point. A second cable from the second point is received at the offshore termination point. The first cable is connected to the second cable at the offshore termination point to create the point-to-point cable connection. In one embodiment, the offshore termination point is located on the continental shelf near the transition to deep water.

Abstract: A method of controlling enzymatic degradation of guar galactomannan with &bgr;-mannanase by selectively inhibiting &bgr;-mannanase, in a pH-dependent or ionic strength-dependent manner, with an aminoglycol such as TRIS or an charged polymer agent is described.

Abstract: A method of fracturing a subterranean formation which surrounds a well bore comprises the steps of providing a fracturing fluid, and injecting the fracturing fluid into the well bore at a pressure sufficient to form fractures in the subterranean formation which surrounds the well bore. The pressure is then released from the fracturing fluid, after which the fluid may be removed from the well and the well placed into production. The fracturing fluid comprises an aqueous liquid, a polysaccharide soluble or dispersible in the aqueous liquid in an amount sufficient to increase the viscosity of the aqueous liquid, an enzyme breaker which degrades said polysaccharide at a temperature above 180° F. Fracturing fluid compositions and enzyme breaker systems useful for carrying out the invention are also disclosed.

Abstract: A method of fracturing a subterranean formation which surrounds a well bore comprises the steps of providing a fracturing fluid, and injecting the fracturing fluid into the well bore at a pressure sufficient to form fractures in the subterranean formation which surrounds the well bore. The pressure is then released from the fracturing fluid, after which the fluid may be removed from the well and the well placed into production. The fracturing fluid comprises an aqueous liquid, a polysaccharide soluble or dispersible in the aqueous liquid in an amount sufficient to increase the viscosity of the aqueous liquid, an enzyme breaker which degrades said polysaccharide at a temperature above 180° F. Fracturing fluid compositions and enzyme breaker systems useful for carrying out the invention are also disclosed.