100results about How to "Increase flux" patented technology

The present invention discloses an approach for making mixed matrix membranes (MMMs) and methods for using these membranes. These MMMs contain a continuous polymer matrix and dispersed microporous molecular sieve particles. In particular, the present invention is directed to make asymmetric thin-film composite MMMs by coating a thin layer of molecular sieve / polymer mixed matrix solution on top of a porous support substrate followed by controlling the formation of a thin dense selective mixed matrix layer equal or larger in thickness than any of said molecular sieve particles. The MMMs of the present invention are suitable for a variety of liquid, gas, and vapor separations. The MMMs of the present invention have at least 20% increase in selectivity for these separations compared to the polymer membranes prepared from their corresponding continuous polymer matrices.

A rotor of a motor includes a plurality of sets of permanent magnets 8a, 8b embedded in the rotor. Each includes a permanent magnet at an inner side and another permanent magnet at an outer side with a distance between them. Each permanent magnet 8a, 8b is formed like an arch projecting towards the center of the rotor. Magnetic flux flows easily through an interval between the permanent magnets at inner and outer sides, and the inductance in a q-axis is enlarged. Then, the reluctance torque is generated in addition to the magnet torque, and the motor has a high torque and a high output power.

A method is provided for increasing the permeability of skin or mucosal tissue to transdermally administered nonsteroidal anti-inflammatory drugs (NSAIDs). The method involves use of a specified amount of a hydroxide-releasing agent, the amount optimized to increase the flux of the NSAID through a body surface while minimizing the likelihood of skin damage, irritation or sensitization. Formulations and drug delivery systems for co-administering a hydroxide-releasing agent with an NSAID are provided as well.

The invention pertains to a method(s) of improving flux in a membrane bioreactor by adding an effective amount of catonic, amphoteric, and zwitterionic polymers, or a combination thereof. The membrane bioreactor impacted by the addition of these polymers is made up of a combination of anaerobic reactors, anoxic reactors, and aerobic reactors and anaerobic digesters.

The invention discloses a double-stator three-freedom-degree decoupling lorentz-force magnetic bearing. The lorentz-force magnetic bearing mainly comprises two parts, namely, a rotor system and a stator system, wherein the rotor system mainly comprises a magnetic-conductive ring, an axial magnetic-isolated ring, an axial magnetic steel, an axial locking nut, a deflection magnetic-isolated ring, deflection magnetic steel and a deflection locking nut; the stator system mainly comprises a deflection stator skeleton, a deflection winding, an axial stator skeleton, an axial winding and epoxy resin glue. The double-stator three-freedom-degree decoupling lorentz-force magnetic bearing disclosed by the invention has the advantages that axial translation and radial two-freedom-degree deflection control can be realized and the translation control and the radial deflection control are completely decoupled, so that the control performance and the control accuracy of the magnetic bearing are improved; simultaneously, since the magnetic flux and the magnetic density in air gaps are constant, outputted force and torque and the control current have the relative good linearity, so that the control accuracy of the magnetic bearing is further improved.

A beam shaping assembly for neutron capture therapy includes a beam inlet, a target having nuclear reaction with an incident proton beam from the beam inlet to produce neutrons forming a neutron beam defining a main axis, a moderator adjoining to the target, a reflector surrounding the moderator, a thermal neutron absorber adjoining to the moderator, a radiation shield arranged inside the beam shaping assembly and a beam outlet. The neutrons are moderated to epithermal neutron energies. An outer surface of the moderator includes at least a first tapered section. The reflector leads the neutrons deviated from the main axis back. The thermal neutron absorber is used for absorbing thermal neutrons so as to avoid overdosing in superficial normal tissue during therapy. The radiation shield is used for shielding leaking neutrons and photons so as to reduce dose of the normal tissue not exposed to irradiation.

The present invention provides methods and compositions for improving permeability and flux in a membrane filtration system, especially in water or wastewater treatment processes.

A stator division type axial flux switching type mixed excitation synchronous motor comprises a stator and a rotor. According to the stator, an inner layer H-shaped unit stator iron core and an outer layer H-shaped unit stator iron core are connected to form two wound concentric rings in a splicing mode, a magnetism separation ring separates the two concentric rings, armature windings are concentrated windings and wind stator teeth of the two adjacent H-shaped unit stator iron cores, permanent magnets are distributed between the adjacent H-shaped unit stator iron cores in an N-pole-and-S-pole-alternating mode. The permanent magnets and a stator groove are of a rectangular structure. An excitation support is placed right above the permanent magnets and is separated by the magnetism separation ring. An excitation winding winds the excitation support axially. The rotor is of a disc type structure and comprises a rotor magnet yoke and rotor poles which are evenly fixed on the surface of the rotor magnet yoke in a radial mode. The stator and the rotor are connected coaxially. The magnetism separation ring is used for separating the stator into an inner portion and an outer portion, so that an electro-magnetic circuit and a permanent magnet magnetic circuit are completely connected in parallel, coupling of the two magnetic circuits is lowered, using rate of the permanent magnets is greatly improved, and motor efficiency is obviously improved.

The invention relates to a continuous casting crystallizer covering slag for high-carbon steel. The continuous casting crystallizer covering slag comprises the following components in percentages by weight: 22.90-37.0% of SiO2, 22.5-27.0% of CaO, 4.35-5.0% of MgO, 1.8-6.0% of Al2O3, 2.2-3.0% of Fe2O3, 9.0-12.0% of Na2O, 5.2-6.0% of F, 6.5-9.0% of C, not more than 2.0% of K2O, not more than 1.9% of Li2O, and the balance of water and impurities. According to the continuous casting crystallizer covering slag for high-carbon steel disclosed by the invention, the using amounts of Na2O and CaF2 are properly reduced, K2O and Li2O fluxing is added, and the slag not only has proper physicochemical performance but also has good glass property and lubricating property, so that the quality and yield of casting blanks are greatly improved, and the covering slag has high economic benefit and social benefit.

In one embodiment, a membrane comprises: a nonporous, hydrophobic selective layer configured to be on a feed solution side of the membrane and polyethylene layer configured to be on a permeate side of the membrane, wherein the membrane is configured to selectively separate an organic component from an aqueous solution. In some embodiments, the method for separating an organic component from an aqueous stream can comprise: contacting a nonporous, hydrophobic selective layer of a membrane with the aqueous stream comprising the organic component, creating a vacuum on the side of the membrane comprising the support layer, permeating the organic component through the membrane into an exit chamber, and removing the organic component permeate from the exit chamber.

The present invention relates to a series-parallel combined driving system for mixed electric car using epicyclic train. Said ivnention can simplify control complexity of existent driving system, reduce quantity of accumulator and implement low consumption of energy and low discharge of waste gas. Said invention is characterized by that the internal combustion engine is connected with centre wheel by means of clutch and brake, the motor is connected with outer ring gear by means of brake, clutch and an inscribed gear, and the planetary gear is connected with main gear box by means of brake and clutch, and the drive power can be transferred onto car wheel of electric car by means of main gear box.

Described herein are fatty acid carbohydrate-hydroxyl-hybrid compounds and derivatives thereof, and methods of treating or preventing disease and disease symptoms using the compounds and compositions thereof.

The invention relates to an electric motor (1) with permanent magnet excitation, comprising a stator (2), a rotor (8), comprising a hollow shaft (13) on which the permanent magnets (9) are positioned. The hollow shaft (13) is sealed tight against an output shaft (7) at least at the end faces thereof and a suitable coolant is provided in the enclosed cavity (14) which, during operation of the electric motor, evaporates from the relatively hot hollow shaft in the region of the permanent magnets (9) and condenses in the region of the relatively cold output shaft (7) such as to introduce a radial and axial heat transport.

The present invention relates to a permanent magnet synchronous motor with hybrid magnetic circuit arrangement. The permanent magnet synchronous motor with the hybrid magnetic circuit arrangement comprises a stator iron core (1) and magnetic steels, the magnetic steels are arranged at the circumferential edge of a rotor iron core (2) unevenly, and comprise the tangential magnetic steels (7), the linear magnetic steels (5) and the V-shaped magnetic steels (6). Each V-shaped magnetic steel (6) is formed by arranging two magnetic steels, and the linear magnetic steels (5) are located at the inner side of a V-shaped magnetic steel set (6) and are close to the circumferential edge of the rotor iron core (2). The tangential magnetic steels (7) are arranged on a q-axis of the motor, and the number of the tangential magnetic steels (7) and the linear magnetic steels (5) is equal to the number of the V-shaped magnetic steels (6) and is equal to the series of the motor. The inner side of the rotor iron core (2) is equipped with the de-weight holes having the same number with the series of the motor, and the de-weight holes comprise the large de-weight holes (3) and the small de-weight holes (4). The permanent magnet synchronous motor with the hybrid magnetic circuit arrangement of the present invention solves the problems of the motor of high power density and cost, wide speed regulation range and electromagnetic noise.

A beam shaping assembly for neutron capture therapy includes a beam inlet, a target having nuclear reaction with an incident proton beam from the beam inlet to produce neutrons forming a neutron beam defining a main axis, a moderator adjoining to the target, a reflector surrounding the moderator, a thermal neutron absorber adjoining to the moderator, a radiation shield arranged inside the beam shaping assembly and a beam outlet. The neutrons are moderated to epithermal neutron energies. The reflector leads the neutrons deviated from the main axis back, and a gap channel is arranged between the moderator and the reflector. The thermal neutron absorber is used for absorbing thermal neutrons so as to avoid overdosing in superficial normal tissue during therapy. The radiation shield is used for shielding leaking neutrons and photons so as to reduce dose of the normal tissue not exposed to irradiation.

An inductor type synchronizer includes: field side stators (11, 15) having field coils (18, 31) where an N pole and an S pole are formed concentrically; rotors (12, 14) having N pole inductors (20, 28) arranged to oppose to the N pole of the field coils (18, 31) and S pole inductors (21, 27) arranged to oppose to the S pole of the field coils (18, 31), and having a fixed rotation axis (34); and an armature side stator (13) having an armature coil (24) arranged to oppose to the N pole inductors (20, 28) and the S pole inductors (21, 27).

The present invention relates to a series-parallel combined driving system for mixed electric car using epicyclic train. Said ivnention can simplify control complexity of existent driving system, reduce quantity of accumulator and implement low consumption of energy and low discharge of waste gas. Said invention is characterized by that the internal combustion engine is connected with centre wheel by means of clutch and brake, the motor is connected with outer ring gear by means of brake, clutch and an inscribed gear, and the planetary gear is connected with main gear box by means of brake and clutch, and the drive power can be transferred onto car wheel of electric car by means of main gear box.

The invention relates to an electromotor having a stator and a rotor (200). The rotor (200) is provided with a rotor core (300) having a plurality of pole shoes (210, 211, 212). The pole shoe is provided with a plurality of recess parts (230) for accommodating permanent magnets (240) in the pole shoe (300). The permanent magnet is structured for producing a magnetic pole corresponding to the rotor (200) in each pole shoe (211, 212). At least one end side (201, 202) of the rotor core (300) is provided with at least one axially-magnetized permanent magnet in at least one pole shoe area for strengthening the magnetic pole (260) produced by at least one pole shoe (211, 212).

The invention discloses an ultra-thin external rotor harmonic deceleration integrated machine comprising a motor and a harmonic reducer. The motor comprises a machine shell, a rear end cover, a rotorand a stator; the machine shell is of a multi-stage hollow barrel-shaped structure, the outer circumference of the rear end cover is fixed to a tail opening of the machine shell in a sealed manner, the shaft center of the rear end cover extends towards the interior of the machine shell to be provided with a hollow stator shaft, the rotor comprises a rotor shaft rotationally arranged in the machineshell and magnetic steel arranged on the outer circumference of the rotor shaft, and the stator is mounted on the outer circumference of the hollow stator shaft; and the harmonic reducer comprises awave generator connected to the first end of the rotor shaft in the axial direction, a flexible wheel, a rigid wheel and a crossed roller bearing, the outer circumference of the flexible wheel is fixed to the front end wall of the machine shell, the flexible wheel is arranged on the outer circumference of the wave generator, the rigid wheel is arranged on the outer circumference of the flexible wheel in a sleeving manner, and the crossed roller bearing is located between the rigid wheel and the machine shell in the axial direction. According to the ultra-thin external rotor harmonic deceleration integrated machine, the outer rotor structure is used on the basis of a frameless motor, the external rotor is directly connected with the reducer, and the advantages of being flat in structure, simple in installation, stable in output, high in structural compatibility and the like are achieved.

The invention relates to a controllable permanent magnet magnetic suspension damping spring with an air damping chamber. The damping spring comprises a pedestal, a support shaft, an casing, a rotor, a displacement sensor, a stator, a stator excitation winding and an electromagnetic controller, wherein, the pedestal has a cylindrical structure; a chamber is formed in the centre of the pedestal and used as the air damping chamber; one end of the supporting shaft is inserted in the air damping chamber; the casing is fixed to the pedestal; the rotor is arranged on the support shaft; a guide rod is arranged on the rotor; a pore path is formed on the pedestal; the displacement sensor is arranged at the port of the pore path of the pedestal and corresponds to the guide rod; the stator is arranged outside the rotor; a gap is kept between the rotor and the stator and filled with ferromagnetic material powder; the stator excitation winding is arranged on the stator; and the electromagnetic controller is electrically connected with the displacement sensor and the stator excitation winding respectively to form a closed loop control system. In the controllable permanent magnet magnetic suspension damping spring, magnetic attraction is used as elasticity, and the spring body and the damping chamber are integrated, so that the vibration damping effect is obviously improved. At the same time, the magnetic attraction, namely magnetic suspension force adopts the combination of permanent magnetic attraction and electromagnetic force, so that the magnetic suspension force can be effectively controlled according the difference of the loading, thereby improving the elasticity property of the spring.

A high-frequency current of 50-100 Hz is applied to a power lead (34) of a remotion path conductor configuration along an elevator cage (27) from a high-frequency electric source. The cage is mounted with a magnetic core (36) in magnetic coupling with the power lead in non-contact manner. The magnetic core is wound with a secondary windings (37) which induces to generate an alternating current voltage corresponding to the high-frequency current flowing over the power lead. Through an electricity bearing part (38), the alternating current voltage generated through induction at the secondary windings is provided to a load (39) after a power conversion. The power lead consists of a conducting wire (40) which is made of electric conducting materials and has a circular cross-section shape and an insulation coating layer (41) coated at the periphery of the conducting wire, wherein the radius of the conducting wire (40) is below the skin depth (delta) corresponding to frequency of the high-frequency current applied by the high-frequency electric source.

A filter medium is provided. A filter medium according to an embodiment of the present invention comprises: a fiber web layer of a three-dimensional network structure including nanofiber; and a hydrophilic coating layer which covers at least a part of the outer surface of the nanofiber. According to this, a flow rate can be remarkably increased due to the improved hydrophilicity of the filter medium. Also, as the improved hydrophilicity is maintained for a long period of time, the lifespan can be remarkably prolonged. Furthermore, since the modification of a porous structure of the filter medium is minimized during the process of hydrophilization so that the initially designed physical properties of the filter medium can be exhibited in its entirety, the filter medium having chemical resistance, excellent water permeability and durability can be variously applied in the water treatment field.

An electromagnetic generator without moving parts includes a permanent magnet and a magnetic core including first and second magnetic paths. A first input coil and a first output coil extend around portions of the first magnetic path, while a second input coil and a second output coil extend around portions of the second magnetic path. The input coil are alternatively pulsed to provide induced current pulses in the second output coil. Driving electrical current through each of the input coils reduces a level of flux from the permanent magnet within the magnetic path around which the input coil extends.

A rotating part that includes at least one generator unit having at least one coil, at least one permanent magnet and two pole shoes having pole surfaces facing radially outward is provided, The non-rotating part has an arc-shaped saddle adaptor of ferromagnetic material arranged with a radial distance to the pole surfaces. The saddle adaptor is configured to close a magnetic circuit passing via the pole shoes through the coil in a rotational position where the saddle adaptor overlaps with the pole shoes of the generator unit.

The present invention provides methods and compositions for improving permeability and flux in a membrane filtration system, especially in water or wastewater treatment processes.

The invention relates to a semi-active turning flutter magneto-rheological damping device based on an extrusion operation mode. The damping device comprises a fixed magnetic pole component and a vibrated magnetic pole component, wherein an end cover in the fixed magnetic pole component is fixedly connected with a box body; two fixed magnetic pole plates are connected with the end cover and a cylindrical hole in the inner side of the box body in an interference fit manner respectively; a dabber in the vibrated magnetic pole component is matched and connected with a homemade lathe tool through a Morse's cone; the space between the end cover and the box body is filled with a magnetorheological fluid; two disk-shaped iron cores are placed in the space between the end cover and the box body, and are connected with the dabber in an interference fit manner; and magnet exciting coils wind cylindrical skeletons of the disk-shaped iron cores. By the adoption of the characteristics that the magnetorheological fluid is fast in response under an external magnetic field, and different damping forces can be provided in transformation from liquid to solid, and on-line continuous real-time control of power parameters (damping, stiffness and the like) of a lathe saddle system is realized; and the damping device is mounted on a lathe sliding box, so that the adjustment is convenient, and flutter in cylindrical turning can be effectively inhibited.

The invention discloses a hollow fiber ultrafiltration membrane of a water purifier. The hollow fiber ultrafiltration membrane consists of the following components in percentage by mass: 10-20% of polyethersulfone resin, 5-10% of polyvinyl chloride, 30-55% of a polar solvent, 8-15% of a polar small-molecule pore-forming agent and 6-10% of a hydrophilc agent. According to the invention, the hollow fiber ultrafiltration membrane, which is prepared by mixing polyvinyl chloride with polyethersulfone resin in certain proportion, is relatively good in hydrophilcity, greatly increased in flux and relatively high in toughness relative to individual use of the polyvinyl chloride and the polyethersulfone resin. The polyvinyl chloride and the polyethersulfone resin have synergistic effect, so that the obtained hollow fiber ultrafiltration membrane has more excellent performance.