Abstract: In some embodiments, devices for use as blood-brain barrier models are disclosed. The devices may include either a hydrogel component that surrounds a channel formed between a first opening and a second opening of the hydrogel component, or a hydrogel component that forms a groove. The devices may further include pericytes disposed in the channel or the groove, and endothelial cells may be disposed in the channel or the groove. The hydrogel component may include astrocytes (e.g., printed into the hydrogel component via projection stereolithography). Also disclosed are various methods of making and using these devices.

Abstract: A reactor useful in the production and conversion of hydrocarbon feedstocks may include: a pressure vessel with an interior wall; a refractory lining inside the reactor, wherein the refractory lining comprises: a first layer comprising a brick refractory, a second layer comprising a refractory castable, wherein the refractory castable comprises an aggregate and a binder, wherein the binder comprises CaO·6Al2O3 and less than 1 wt % of a hydratable calcium aluminate, and a third layer comprising a fiber refractory, wherein the second layer is between the first and third layers, and wherein the third layer is closest to the interior wall.

Abstract: A cutting system includes a rotatable transport member, a plurality of tool holders, and a plurality of cutting tools. A plurality of tool holders is attached to the rotatable transport member. The plurality of tool holders is spaced apart along the rotatable transport member and configured to passively rotate relative to the rotatable transport member. The plurality of cutting tools is rotatably attached to each tool holder. Each of the cutting tools is configured to passively rotate around different axis than an axis around which the tool holder passively rotates.

Abstract: Venturi-type scrubbers may be utilized in conjunction with removing solids from and quenching a gas-phase reaction product. Methods may comprise: providing a reaction product comprising a hydrocarbon gas and solids; introducing the reaction product into a Venturi-type scrubber; introducing a scrubbing fluid into the Venturi-type scrubber, wherein the scrubbing fluid is at a lower temperature than the reaction product; producing from the Venturi-type scrubber a multi-phase product comprising a scrubbed reaction product and a spent scrubbing fluid, the scrubbed reaction product comprising the hydrocarbon gas and the spent scrubbing fluid comprising the scrubbing fluid and the solids; and separating the hydrocarbon gas from the multi-phase fluid.

Abstract: Grease compositions may be made from an oil basestock. For example, a grease composition may include: an oil basestock having: a kinematic viscosity (ASTM D445, 40° C.) of from 320 cSt to 520 cSt, a kinematic viscosity (ASTM D445, 100° C.) of from 22 cSt to 36 cSt, a viscosity index (ASTM D2270) of from 80 to 119, a pour point (ASTM D97) of ?6° C. or less, and a saturate content (ASTM D7419) of 90 wt % or greater; and from 0.5 wt % to 15 wt % of a thickener, by total weight of the grease composition.

Abstract: Method and systems for determining acceptance criteria for identification of occluding particles in a lumen of a device are provided. The methods and systems can be used in methods of identifying an occluded device in an inspection method. The acceptance criteria can be calculated based on mass flow measurements of an occluded representative device.

Abstract: A modular power supply apparatus for use in harsh climates that comprises a portable, low cost, easily maintained, durable power supply for energy production as well as systems, methods for forming, and methods of using same.

Abstract: Method and systems for determining acceptance criteria for identification of occluding particles in a lumen of a device are provided. The methods and systems can be used in methods of identifying an occluded device in an inspection method.

Abstract: A method of treating refractory-lined equipment includes accessing an interior of the refractory-lined equipment with an equipment repair apparatus, wherein the equipment repair apparatus includes a robotic arm and one or more end effectors coupled to an end of the robotic arm, inspecting refractory material that lines an inner wall of the refractory-lined equipment with a first end effector coupled to the end of the robotic arm, removing damaged refractory material from the inner wall with a second end effector coupled to the end of the robotic arm, removing one or more anchors from the inner wall with a third end effector coupled to the end of the robotic arm, and installing new refractory material on the inner wall with a fourth end effector coupled to the end of the robotic arm.

Abstract: Method and systems for determining acceptance criteria for identification of occluding particles in a lumen of a device are provided. The methods and systems can be used in methods of identifying an occluded device in an inspection method.

Abstract: A refractory-lined equipment includes a vessel defining an interior at least partially lined with a refractory material, and a nozzle assembly coupled to the vessel and extending into the interior. The nozzle assembly includes an outer sleeve fixed to the sidewall and extending through an aperture defined in the sidewall, the outer sleeve defining a central passageway, and a nozzle cartridge assembly positionable within the central passageway and including an inner sleeve, a refractory lining disposed about the inner sleeve, and a nozzle positioned within the inner sleeve. The nozzle cartridge assembly is removably coupled to the outer sleeve external to the vessel.

Abstract: A system for preparing a dry process material includes a sealed container that holds and seals the dry process material therein and prevents airborne dust or particles from the dry process material from escaping the sealed container. Sealed processing equipment receives the dry process material from the sealed container and prevents the airborne dust or particles from escaping the sealed processing equipment. A sealed connection sealingly couples the sealed container to the sealed processing equipment and prevents the airborne dust or particles from escaping while transferring the dry process material. A sealed transfer conduit is sealingly coupled to and extends from the sealed processing equipment.

Abstract: A modular power supply apparatus for use in harsh climates that comprises a portable, low cost, easily maintained, durable power supply for energy production as well as systems, methods for forming, and methods of using same.

Abstract: Method and systems for determining acceptance criteria for identification of occluding particles in a lumen of a device are provided. The methods and systems can be used in methods of identifying an occluded device in an inspection method.

Abstract: Method and systems for determining acceptance criteria for identification of occluding particles in a lumen of a device are provided. The methods and systems can be used in methods of identifying an occluded device in an inspection method.

Abstract: A method of treating refractory-lined equipment includes accessing an interior of the refractory-lined equipment with an equipment repair apparatus, wherein the equipment repair apparatus includes a robotic arm and one or more end effectors coupled to an end of the robotic arm, inspecting refractory material that lines an inner wall of the refractory-lined equipment with a first end effector coupled to the end of the robotic arm, removing damaged refractory material from the inner wall with a second end effector coupled to the end of the robotic arm, removing one or more anchors from the inner wall with a third end effector coupled to the end of the robotic arm, and installing new refractory material on the inner wall with a fourth end effector coupled to the end of the robotic arm.

Abstract: A refractory-lined equipment includes a vessel defining an interior at least partially lined with a refractory material, and a nozzle assembly coupled to the vessel and extending into the interior. The nozzle assembly includes an outer sleeve fixed to the sidewall and extending through an aperture defined in the sidewall, the outer sleeve defining a central passageway, and a nozzle cartridge assembly positionable within the central passageway and including an inner sleeve, a refractory lining disposed about the inner sleeve, and a nozzle positioned within the inner sleeve. The nozzle cartridge assembly is removably coupled to the outer sleeve external to the vessel.

Abstract: A system for preparing a dry process material includes a sealed container that holds and seals the dry process material therein and prevents airborne dust or particles from the dry process material from escaping the sealed container. Sealed processing equipment receives the dry process material from the sealed container and prevents the airborne dust or particles from escaping the sealed processing equipment. A sealed connection sealingly couples the sealed container to the sealed processing equipment and prevents the airborne dust or particles from escaping while transferring the dry process material. A sealed transfer conduit is sealingly coupled to and extends from the sealed processing equipment.

Abstract: A transverse trough coil car includes a plurality of transverse troughs, a pair of trucks, a center sill supported on the trucks, a pair of side walls extending the length of the car coupled to the center sill, and a plurality of trough forming assemblies with each trough forming assembly including at least one floating floor sheet. Each one floating floor sheet is structured to allow for thermal expansion in a first direction along a longitudinal axis of the car body and in a second direction transverse to the longitudinal axis of the car body.

Abstract: A nozzle and methods of gas stripping utilizing the nozzle are provided. A nozzle is provided comprising a ceramic nozzle assembly comprising an inlet at one end of a cylindrical portion, an outlet at one end of a conical portion; the cylindrical portion transitioning to the conical portion at an end of the cylindrical portion distal from the inlet; the conical portion transitioning to the cylindrical portion at an end of the conical portion distal from the outlet; and a ceramic vane assembly within the cylindrical portion; the vane assembly comprising a central vane support located substantially concentrically within the cylindrical portion, and a plurality of angled vanes extending from the central vane support to an inner wall of the cylindrical portion; wherein the ceramic nozzle assembly and the ceramic vane assembly are manufactured such that the two assemblies comprise a single piece of ceramic.