Abstract: The present disclosure generally relates to virtual reality simulation, and more specifically, in some implementations, to devices, systems, and methods for use in a virtual reality sports simulation. A system for virtual reality simulation may include an accessory (e.g., one or more of a bat, a glove, or a helmet) for interacting with a virtual reality environment. The accessory may provide the user with haptic feedback that emulates sensations that the user would experience when playing a live-action sport to provide the user with a more meaningful and realistic experience when playing a virtual reality game. Further, virtual reality simulations disclosed herein may include incorporating data from a live-action event (e.g., a live-action sporting event) into a virtual reality environment to provide a user with a realistic experience.

Abstract: A game system is provided in which a first game apparatus operated by a first player and a second game apparatus operated by a second player are configured to communicate with each other. The first game apparatus decides a content of a fighting event according to an operation of the first player, and transmits event information related to the content of the fighting event. The second game apparatus receives the event information, and generates the fighting event based on the event information. The event information includes: object information related to one or more objects that are selected from objects of the first player and that fight against an object of the second player in the fighting event; and mission information that is related to a mission assigned for the second player during the fighting event.

Abstract: A method for providing content items identifying recommendations includes identifying for a first user profile at least one active fantasy sports lineup including a list of players and one or more previous fantasy sports lineups, and generating, for a user, a recommendation profile including a plurality of relevance scores. The method further includes identifying a plurality of candidate recommendations, and determining, for each of the plurality of candidate recommendations, a match score indicating a level of relevance between the candidate recommendation and the recommendation profile. The method further includes prioritizing the plurality of candidate recommendations based on the relevance scores, and providing to a device associated with the first user profile, a content item identifying a selected candidate content management of the plurality of candidate recommendations based on the relevance score between the selected candidate recommendation and the recommendation profile.

Abstract: A video game has at least one player client with control over an aspect of a shared virtual environment. The video game also has at least one spectator client with limited to no control over the shared virtual environment. For example, the spectator client's control may be limited to the game server generating audience cheers or boos in response to spectator input during gameplay. In response to detection of a trigger event by a game server, the player and spectator may switch roles. The client switching from spectator to player experiences an increase in network transfer quality from the game server to help provide smooth gameplay. The client switching from player to spectator faces a decrease in network transfer properties to compensate.

Abstract: Systems and methods for discovery and detection of events in interactive digital content are provided. Gameplay data in sessions involving the plurality of game titles may be tracked in real-time. Each session may be associated with a stream. Event criteria may be stored for each of a plurality of predefined events of interest. An event of interest may be identified when the tracked gameplay data for a session meets the stored criteria. A list of available streams identified as including the identified event may be sorted, and a subset of the available streams may be identified as being at a top of the list. A notification may be provided to a spectator device that includes a link to one of the streams in the subset. The criteria for the event of interest may also be updated based on subsequent game data and feedback (e.g., use of the link).

Abstract: A smart toy platform including a plush character configured to receive a computing device having a display screen, such as a tablet computer or smartphone. The plush includes a pocket configured to receive the computing device. The plush can also include one or more display openings associated with the pocket such that, when the computing device is properly positioned within the pocket, at least a portion of the display screen of the computing device is visible from an exterior of the plush through the display opening(s). The plush can include one or more limbs or other appendages (e.g., arm or leg). One or more of the appendages can include one or more sensors that can communicate with the computing device to allow interaction between the user and the plush/computing device.

Abstract: In an aspect, a toy assembly is provided, and includes a housing, an inner object (which may, in some embodiments, represent a character) inside the housing, a tether, and a motor. The tether is driven by the motor to pull at least one removable housing portion from the housing.

Abstract: A multi-function modular robot apparatus provides a wide range of entertainment and functional use options that may be tailored by a user to the specific entertainment and functional purposes so desired. The specific entertainment and functional purposes of the multi-function modular robot apparatus are obtained through inclusion of multiple stackable modules. The interlocking mechanical and electric communications connections for each stackable module act as a power and electronic communication pass through to allow for each module to be arranged in any order and in any combination while still maintaining power and function.

Abstract: Certain embodiments may generally relate to smart robotic therapeutic devices. A modular toy may include a multiple detachable carriages. The modular toy may also include a liquid crystal display (LCD) screen mounted on a first carriage of the plurality of carriages. The modular toy may further include a bubble-generation mechanism installed on the first carriage, a container disposed on a second carriage of the plurality of carriages that is attached to the first carriage, and a robotic arm mounted on a third carriage of the plurality of carriages that is attached to the second carriage.

Abstract: A system of generating steam from an emulsion stream produced from a reservoir via thermal recovery has a heat exchanger for adjusting the emulsion to a first temperature; at least one separation device for separating water from the emulsion at the first temperature to obtain produced water; an optional produced-water preheater, and a high-pressure evaporator for receiving the produced water and generating steam using the produced water. The evaporator has a vapor drum; a heating element receiving the water stream, and in fluid communication with the vapor drum via a pressure letdown device; a heating source for imparting sensible heat to the water stream for generating steam. The evaporator also includes a recirculation pump for circulation of blowdown concentrate, and a bubble generator for generating bubbles and injecting generated bubbles into the heating element to enable self-removal of scales and other solid deposits in the evaporator.

Abstract: The present invention relates to the fractionation technology that is used to create purified phenol and acetone products. More specifically, the present invention relates to a fractionation technology that is used to create crude acetone and crude phenol streams using a dividing wall column intended to remove cumene, alpha-methyl styrene and water from the product side of the wall.

Abstract: A process for producing THC-O-acetate using a succession of distillation, salting-out assisted liquid-liquid extractions (SALLEs), and solvent recovery techniques. Tetrahydrocannabinol (THC) in cannabis oil reacts with acetic anhydride under reflux to produce THC-O-acetate and acetic acid. The resulting crude product is distilled and subjected to a SALLE with hexane followed by a SALLE with petroleum ether, before being distilled again in order to obtain a refined, THC-O-acetate product.

Abstract: An apparatus and process doubles the number of trays in a single fractionation column. A dividing wall is used to isolate a first side from a second side and fractionation on trays on each side is independent of the other. A transition vapor stream is ducted from a top of a first side to the bottom of the second side, and a transition liquid stream is ducted from a bottom of the second side to the top of the first side.

Abstract: An apparatus and process doubles the number of trays in a single fractionation column. A dividing wall is used to isolate a first side from a second side and fractionation on trays on each side is independent of the other. A transition vapor stream is ducted from a top of a first side to the bottom of the second side, and a transition liquid stream is ducted from a bottom of the second side to the top of the first side.

Abstract: A system and method for improving hydrocarbon fuel, such as diesel, particularly after contamination in underground storage tanks with other fuels such as gasoline, etc. High-gravity hydrocarbons present in diesel and/or water are removed via aeration of the (out-of-specification/contaminated) diesel. The removal of unwanted hydrocarbons and other contaminants can be accomplished in a number of fashions, including pumped air, exposure of the line, drawing of air into the line, etc. After removal from the diesel line, high-gravity hydrocarbons can be isolated and recycled or re-used, for instance to power the system. Following the conditioning, the diesel may be returned into specification for dispensation at a commercial or retail fuel center for use in vehicles and diesel combustion engines. The system and process may be portable and/or conducted locally at the site of an underground storage tank.

Abstract: An organic material production system includes: a pretreatment device (12) that pulverizes a biomass material (11); a hydrothermal decomposition apparatus (14) that hydrothermally decomposes a pulverized biomass (13) by causing it to countercurrently contact with hot compressed water (15), elutes lignin components and hemicellulose components into the hot compressed water (15), and separates the lignin components and the hemicellulose components from a biomass solid residue; a first enzymatic hydrolysis device (19-1) that treats cellulose in a biomass solid residue (17), discharged from the hydrothermal decomposition apparatus, with an enzyme (18) to enzymatically hydrolyze it to a sugar solution containing hexose; a fermenter (21) that produces ethanol by fermentation using a sugar solution (20) obtained by the first enzymatic hydrolysis device (19-1); and a refiner 25 that refines an alcohol fermentation liquid (22), so as to separate it into ethanol (23) and a residue (24).

Abstract: Examples of gas liquid separators include a chamber, a fluid mixture inlet, a gas outlet and a liquid outlet. The fluid mixture inlet and the gas and liquid outlets are in fluid communication with the chamber. A fluid mixture received at the fluid mixture inlet diffuses inside the chamber and is separated into a liquid and a gas. The separated liquid is gravity-fed to the liquid outlet. The gas liquid separators have reduced dispersion and increased liquid recovery in comparison to conventional gas liquid separators used for chromatographic separations. The reduced dispersion yields an improvement in the shape of chromatographic peaks.

Abstract: The present invention provides a vacuuming apparatus for removing bubbles from an oil immersed device containing components immersed in insulating oil. The vacuuming apparatus comprises: a supporting mechanism for supporting the oil immersed device; a swinging mechanism for swinging the supporting mechanism and the oil immersed device supported thereby; and a vacuuming mechanism for vacuuming the oil immersed device.

Abstract: A gas removal unit has a tube bundle formed of a plurality of tubes with a hollow center. The tubes are formed of a material that allows passage of a gas from an exterior of the tube into an interior of the tube and resists flow of at least some liquids through the tube into the interior of the tube. There is a plurality of inner chambers within the bundle and a plurality of outer chambers outward of the bundle. A fluid inlet connects to a first of the inner or outer chambers and a fluid outlet connects to a second of the inner and outer chambers. An axial direction is defined between the fluid inlet to the fluid outlet. A tortuous path is defined by the inner and outer chambers such that a fluid will pass repeatedly from the inner chambers to the outer chambers, and from the outer chambers to the inner chambers, as it moves along the axial direction from the fluid inlet to the fluid outlet. A fuel supply system is also disclosed.

Abstract: An inlet device for use in a vessel to facilitate separation of a gas phase from a liquid phase in a fluid stream. The inlet device has separation cans positioned at each of the outlet ends of a flow channel. Each separation can has a cylindrical wall and an elongated inlet opening in the cylindrical wall to allow the fluid stream to be introduced in a tangential direction into an open interior region where it swirls to facilitate separation of the gas phase from the liquid phase in the fluid stream. The liquid phase exits the separation can through slots in the cylindrical wall and through an open lower end of the open interior region. The gas phase exits the separation can by ascending upwardly through an open upper end of the open interior region.

Abstract: A method for removing gas from a froth by supplying at least a portion of the froth from a vessel into a housing, providing a flow of fluid through the housing, introducing the froth into the fluid such that at least a portion of the gas in the froth is removed from the froth and entrained in the fluid to form a mixture of fluid and entrained gas and subsequently delivering the mixture to the vessel and/or another location within a processing circuit.

Abstract: A fluid filtration assembly includes a filter housing having first and second ends and a connector for fluid communication with a fluid storage vessel. A filter element is disposable within the filter housing, and first and second pumps are coupled at the first and second ends of the filter housing. A controller may coordinate the operation of the first and second pumps to induce alternating tangential flow of fluid between the filter housing and the first and second pumps. At least one of the first and second pumps is a diaphragm pump or a plunger pump. The fluid storage vessel can be a bioreactor.

Abstract: The invention relates to a drum filter for water filtration and method therefor. The drum filter comprises: a housing; a filter drum arranged in the housing and comprising a filter surface, wherein the filter drum is rotatable around a shaft; an inlet for supplying water for filtering to an outward facing side of the filter surface for the purpose of collecting fouling on the filter surface; an outlet for discharging filtered water; and a sprayer for spraying clean the filter surface, wherein the sprayer is configured to spray substantially transversely over the outward facing side of the filter surface.

Abstract: A pipeline filter assembly comprising a base assembly, an outer wall, and a lid assembly. The base assembly comprises a filter base, a base plate, and a support collar. The outer wall has a lower end portion and an upper end portion, wherein the lower end portion is coupled to the base assembly and the upper end portion comprises a lower collar. The lower collar comprising at least one lock notch spaced around an exterior surface thereof. The lid assembly comprises an upper collar and an upper cover. The upper collar comprises at least one housing that projects from the upper collar, at least one biasing clip pivotally mounted within the housing for releasable engagement with the lock notch, and at least one biasing spring that biases its corresponding biasing clip to a locked position around a corresponding lock notch.

Abstract: A tank for storing oil includes a suction strainer with first and second filtration portions. The first filtration portion has a substantially cylindrical shape and formed by bending a thin plate into a pleated shape. The second filtration portion is provided on the outer side of the first filtration portion. The second filtration portion has a substantially cylindrical shape and is formed of a material having a plurality of spaces formed in a surface and interior of the material.

Abstract: A breather that allows airflow between an inside and an outside of a casing of an on-vehicle power unit or a transmission mechanism related to the power unit to be performed through a breather chamber structure includes a connecting portion and a cylindrical wall. An ATF-air mixture from the inside of the casing flows into the breather chamber structure through the connecting portion having a tubular shape. The cylindrical wall is provided in the breather chamber structure and has a cylindrical shape having one end portion that is closed and another end portion that is open. The ATF-air mixture from the connecting portion flows from an opening at the other end portion toward the one end portion through the cylindrical wall.

Abstract: Provided is a dust collection method using a dust collection device. The dust collection method includes: a step of forming a rotating airflow by means of suction with a suction device, the rotating airflow progressing while spiraling along an inner wall surface of a main body; a step of supplying liquid from a supply nozzle; a step of spreading out the liquid with the rotating airflow on the inner wall surface thereby to continuously form a liquid catcher, the liquid catcher rotating as a film of the liquid; and a step of separating smoke and/or dust to outside by centrifugal force due to the rotating airflow and capturing the smoke and/or dust with the liquid catcher, the smoke and/or dust being contained in air introduced to the inside of the main body.

Abstract: The air filter device includes a main member, a conduit member, a sealing piece, a pressurizing piece, a filter element, and a cap. The conduit member, sealing piece, pressurizing piece, and filter element are sequentially stacked in the main member. The conduit member provides a spiral duct with a second inlet and a second outlet. The second inlet is conducted to an outlet opening of the pressurizing piece. The second outlet is conducted to a plug extended from a bottom side of the main member. The cap is fastened to the main member with airflow paths between the cap and main member. The main member may be joined to the inlet terminal of any air compressor. External air is drawn into the air compressor through the filter element, pressuring element, conduit member, and the plug so as to achieve smooth, steady, and quiet air intake.

Abstract: An air filter device for HVAC and/or furnace systems comprising a filter body defining a peripheral edge. The filter body comprises a sleeve and an insert. The sleeve is defined by overlying sheets and comprises filtering material for filtering air. The insert is positioned between the overlying sheet for providing an internal support to the sleeve. The filter body may be positioned within an outer frame comprising a peripheral edge and defining open front and rear faces for exposing the filtering material.

Abstract: A sterilization container for retaining surgical instruments in a sterilizer comprising a plurality of walls defining an interior volume sized to receive at least one instrument tray, least one of the walls defining a venting pass through area, and a filter occluding the venting passage area, wherein a ratio of the venting pass through area to the interior volume is at least 1 square inch:125 cubic inches.

Abstract: An oil separator unit including an upstream member having an opening through which the blowby gas passes, a downstream member having a hit portion hit by the blowby gas, and a porous member trapping the oil mist contained in the blowby gas that has passed through the through hole. The upstream member includes an upstream surface facing a first surface of the porous member, and a spacer projected from the upstream surface so as to generate a gap between the first surface and the upstream surface to support the first surface. The spacer includes a support portion supporting a side surface between the first surface and the second surface of the porous member at an end of the spacer.

Abstract: A horizontal gas coalescing filter unit having a reduced vertical footprint includes a first housing including an inlet and an outlet, the inlet being configured for receiving a gas, including liquid condensates, under pressure. The filter unit includes an impingement head, a tuyere, and a vane separator to cause liquid condensates to separate from the gas. A second housing is positioned in fluid communication with the horizontal housing and contains a coalescing filter for receiving the gas exiting the vane separator and for further removing the liquid condensates from the gas. A gas outlet is associated with the second housing for allowing the separated, dry gas to exit the filter unit. A method for separating liquid condensates from the gas is also provided.

Abstract: A honeycomb filter includes a plugged honeycomb structure body which has cell rows arranged along one direction in a cross section of the honeycomb structure body and including a first cell row constituted of inflow cells and a second cell row including outflow cells. A width P1 (mm) of the first cell row, a width P2 (mm) of the second cell row and a curvature radius R (?m) of a curved shape of corner portions of a polygonal shape of each cell satisfy relations of Equations (1) and (2) below: Equation (1): 2?100?(P1/P2×100)?50, and Equation (2): 0.4?(R/1000)/((P1+P2)/2)×100?20.

Abstract: Embodiments are directed to a vacuum cleaner and removably attachable filter. The filter is configured to separate debris from a flow of fluid drawn through the suction inlet. The filter includes a housing forming a first volume and a filter media forming a second inner volume. The filter media is coupled to the housing such that the first and second inner volumes together at least partially define a collection container configured to store debris separated by the filter media from the flow of fluid. The filter further includes an inlet opening that extends through the housing to provide fluid communication into the collection container such that the flow of fluid with the debris can flow into the collection container such that the flow of fluid with the debris can flow into the collection container and a relatively clean flow of fluid exits through the filter media.

Abstract: To provide a flux recovery device which can remove a flux in a pipe and a method for removing a flux. A flux recovery device 200 according to the present invention recovers a flux from a gaseous mixture containing a flux component, the flux recovery device 200 including: a separation unit 400 configured to separate the flux from the gaseous mixture using water, and to discharge the water containing the flux; a pipe 500 including a second connection port 540, an inclined portion 580, and a first connection port 520, the water containing the flux flowing into the pipe 500 from the second connection port 540, the inclined portion 580 being positioned on a downstream side of the second connection port 540, and extending in a direction intersecting with a vertical line extending in a gravity direction, and the first connection port 520 being positioned on an upstream side of the inclined portion 580; and a pump 220 configured to supply water from the first connection port 520.

Abstract: In some embodiments, there is provided a scrubber system for cleaning return air in an HVAC unit, where the scrubber system attaches directly to an inlet of the return-air side of the HVAC unit, for example, by the mating of a flange on the system with a matching flange on the HVAC unit. The bolt-on scrubber system may comprise one or more sorbent materials, a fan for circulating return air through the sorbent, a damper-controlled inlet and a damper-controlled outlet to the attached return air side of the HVAC unit. Further, an additional air flow channel and a damper may be included in the system to control the flow of outside air into the HVAC unit. In some embodiments, the sorbents may be contained in removable inserts.

Abstract: A system for recovering nitrogen during regeneration of a treater, the system including an adsorbent bed downstream of the treater, wherein the adsorbent bed comprises an adsorbent operable to adsorb at least one impurity from a treater bed regeneration effluent stream comprising nitrogen to provide a nitrogen product having a higher nitrogen purity than a nitrogen purity of the treater bed regeneration effluent stream. A method for recovering nitrogen during regeneration of a treater is also provided.

Abstract: The invention relates to a process for modifying the VPSA/VSA/PSA cycle to allow for maximum product pressure without the need for a base load oxygen compressor (BLOC) or base load oxygen blower (BLOB), thus supplying low pressure oxygen (3 to 7 Psig) to the end user while at the same time lowering product costs 10 to 30%. The system of this invention preferably employs larger piping runs from the VPSA to the oxy-fuel control skids, larger piping for the oxy-fuel control skid, larger piping for the VPSA, low pressure drop flow measurements, and low pressure drop check valves.

Abstract: A device and a process used to purify air from pollutants are disclosed. The device has at least one empty body defining a chamber intended to receive an air flow to be purified and having at least one inlet hole for the air, and at least one outlet hole for the air. The chamber has an electric field generator, at least one photocatalyst, intended to be excited by a luminous radiation, implementing a photocatalysis process, at least one luminous radiation source intended to excite the photocatalyst, and at least one adsorbing material. The electric field generator, the at least one photocatalyst and the at least one adsorbing material are disposed in the chamber in such manner to cooperate.

Abstract: This invention relates to methods and compositions for removing contaminants from fluids, for example, the removal of mercury contaminants by oxidation. The compositions and methods provided herein are robust and accomplish efficient removal of contaminants from fluid streams without the need for relatively expensive activated carbon. In addition, the methods and compositions of the present invention do not pose risks to the safety of workers through the injection of highly toxic, highly corrosive elemental bromine to directly oxidize the mercury. The compositions and methods of the present invention are versatile and apply to a wide range of contaminants including, but not limited to, mercury, lead, cadmium, thallium, and hydrogen sulfides. Further, the compositions and methods contained herein are capable of efficient contaminant removal over a wide range of temperatures and pressures.

Abstract: A cleaning device includes a housing, an air driver, an ozone generator, and a catalyst. The housing defines an inlet, an outlet, and an internal cavity connecting the inlet to the outlet. The air driver is positioned within the internal cavity. The air driver is configured to draw contaminated air from an external environment into the inlet and through the internal cavity of the housing to facilitate decontaminating the contaminated air and emitting clean air out of the outlet into the external environment. The ozone generator is positioned within the internal cavity. The ozone generator is configured to generate ozone. The catalyst is positioned within the internal cavity. The ozone and/or the catalyst are configured to interact with the contaminated air to produce the clean air.

Abstract: Described is a process for the treatment of a gas stream containing nitrogen oxides. The process comprises the steps of: (1) providing a gas stream containing one or more nitrogen oxides; (2) contacting the gas stream provided in step (1) with a transition metal containing zeolitic material having a BEA-type framework structure for reacting one or more of the nitrogen oxides; wherein the zeolitic material is obtainable from an organotemplate-free synthetic process. Also described is an apparatus for the treatment of a gas stream comprising containing nitrogen oxides.

Abstract: Provided are catalyst articles, methods of manufacturing catalyst articles, and methods for controlling emissions in diesel engine exhaust streams with catalyst articles, where the emission treatment system of various embodiments effectively treats diesel engine exhaust with a catalyst article. In one or more embodiments, the catalyst articles have a platinum group metal end coating covering an outlet end surface of the catalytic article. In one or more embodiments, a method is provided where an applicator transfers a platinum group metal coating to an outlet end face of a catalytic article.

Abstract: The present disclosure is directed to SCR catalysts, methods for their manufacture, and methods of treating emissions in an exhaust stream with them. The SCR catalysts are produced from pillaring and ion exchanging synthetic phyllosilicates, particularly hydrothermally synthesized phyllosilicates.

Abstract: The main object of the present invention is to provide a new method for preparing the copper-containing silicoaluminate form of the AEI zeolite structure by means of a direct synthesis methodology. This new process involves combining a organometallic copper-complex with an additional organic molecule capable of directing the crystallisation of the silicoaluminate form of the AEI zeolite structure as organic structure-directing agents (OSDAs).

Abstract: A platform has a filter system with a first set of filter modules and a second set of filter modules that is different from the first set of filter modules. Each set of filter modules includes an inflow channel and an outflow channel. A fluid inlet is connected to the first set of filter modules, a fluid outlet is connected to the second set of filter modules, and a separation interface separates the first and second sets of filter modules. The separation interface has a first interface channel to connect to the module outflow channel of the first set of filter modules, and a second interface channel to connect to the module inflow channel of the second set of filter modules. The filter system receives fluid through the fluid inlet and, after the fluid has passed through each set of filter modules, discharges the fluid through the fluid outlet.

Abstract: The present invention relates to a method for curing adhesives used in the manufacture of membrane modules containing polymeric membranes, particularly polyimide based membranes used for the nanofiltration or ultrafiltration of solutes dissolved in organic solvents using microwaves. To maximise the chemical resistance of the adhesive used in these organic solvent applications, it must be as fully reacted and crosslinked (“cured”) as possible. Typically, thermal processing (heating) of the entire membrane module is used to cure the adhesives. However, the time and temperature required to achieve this high degree of completion of reaction may damage the separation performance of the membrane contained within the membrane module. In one particular aspect, this process utilises microwaves to preferentially promote the curing of epoxy adhesives over the general heating of the membrane module.

Abstract: Grafted, asymmetric, porous, ultra high molecular weight polyethylene membranes having a bubble point between about 5.38 bar (78 psi) and 11.03 bar (160 psi) are disclosed. Monomers are grafted to the porous polymeric membrane surfaces, the monomers having one or more of neutral groups or ion exchange groups grafted to one or more surfaces of the membrane. A combination of two photoinitiators can be used to graft the monomers to the asymmetric, porous, ultra high molecular weight membrane resulting in grafted microporous membranes that have water flow rates that are at least 50% of the water flow rate of an ungrafted, asymmetric, porous ultra high molecular weight polyethylene membrane. The grafted membrane also wets in water.

Abstract: A preparation method of separation membrane is provided. First, a polyimide composition including a dissolvable polyimide, a crosslinking agent, and a solvent is provided. The dissolvable polyimide is represented by formula 1: wherein B is a tetravalent organic group derived from a tetracarboxylic dianhydride containing aromatic group, A is a divalent organic group derived from a diamine containing aromatic group, A? is a divalent organic group derived from a diamine containing aromatic group and carboxylic acid group, and 0.1?X?0.9. The crosslinking agent is an aziridine crosslinking agent, an isocyanate crosslinking agent, an epoxy crosslinking agent, a diamine crosslinking agent, or a triamine crosslinking agent. A crosslinking process is performed on the polyimide composition. The polyimide composition which has been subjected to the crosslinking process is coated on a substrate to form a polyimide membrane. A dry phase inversion process is performed on the polyimide membrane.

Abstract: A gas dissolving system using double mixers to generate a higher gas concentration in liquid is disclosed. The gas dissolving system includes two gas mixers, a degassing device, pressure valves, a pressure sensor, and a pump. Liquid flows through mixers to entrain gas therein, and it thus contains dissolved gas and undissolved gas. The liquid subsequently flows into the degassing device so that undissolved gas is released to the outside environment, and dissolved gas remains in the liquid. The liquid with dissolved gas combines with raw liquid and is diluted so that it becomes liquid with a desired gas concentration as the output. A high gas concentration of liquid is obtained after more cycles of fluid flow through the mixers to dissolve gas without combining raw liquid.