102results about How to "Reduce drawing" patented technology

Water treatment systems and methods. Embodiments provide water treatment systems which comprise first oxidation, particulate filtration, and membrane filtration subsystems in that order. Systems also comprise recirculation paths and sensors for these subsystems. A controller determines whether to recirculate water to a previous subsystem in the order. Systems can comprise downstream second oxidation, high pressure membrane, ion exchange, activated carbon subsystems and/or ultraviolet contactors. Systems with high pressure membranes can comprise a pump before the high pressure membranes, a booster pump of the high pressure membrane subsystem, and a damping tank. In such systems the controller maintains a pressure in the damping tank. High pressure membrane subsystems can further comprise nanofiltration membranes and RO membranes. Systems can comprise bypass paths for some/all of the subsystems. For such systems, the controller further determines, whether to bypass these subsystems.

Methods and systems are provided for controlling a fuel system in a hybrid vehicle. Before canister purging is stopped by closing a purge valve, a canister vent valve is closed to hold fuel tank vacuum. Then, during a subsequent canister purge, the purge valve is opened before opening the vent valve, allowing canister purge to initiate under fuel tank vacuum conditions.

An embodiment of the invention provides a method, a device and equipment for acquiring images. The method includes detecting whether an application occupying a camera enters a background or not; and when the application occupying the camera enters the background, closing a view-finding interface and maintaining occupancy of the application occupying the camera on the camera for the convenience of the application occupying the camera to acquire resources acquired by the camera. By the method, the device and the equipment for acquiring the images, multitask operating capability of intelligent equipment can be guaranteed, electric energy can be saved, system performance can be improved, user privacy can be protected, and entertainment can be increased.

The invention discloses a 3D printer spray head with an adjustable nozzle caliber. The 3D printer spray head comprises a rotor and a nozzle assembly; the rotor comprises a heat storage block, a material storage pipe, a throat pipe, a heat insulation gasket, screws and nuts; the nozzle assembly comprises a first gasket, nozzle surrounding sheets, a second gasket, a guide plate and a control plate.The nozzle surrounding sheets are matched with one another to form a polygonal nozzle flow channel, and a guide groove for guiding the movement of the nozzle surrounding sheets is arranged on the guide plate to guide the movement direction of the nozzle surrounding sheets. The control panel is matched with the guide plate, and the relative rotation between the control panel and the guide plate canchange the size of the side length of the polygon enclosed by the nozzle surrounding sheets, thus realizing an adjustable size of the printing nozzle circulation area. The heat storage block is connected with the material storage pipe through screws and nuts, so that the heat transfer resistance between the heat storage block and the material storage pipe can be effectively improved.

The present invention provides a system for optimizing transmission output power for a Gigabit Ethernet communications system (100). A PHY operational layer (104) is provided, with a backoff construct (102) that is at least partially implemented within the PHY operational layer. A second end component (108) is communicatively coupled to the PHY operational layer. An estimating construct (110) is implemented within the PHY operational layer, and is cooperatively associated with the backoff construct. The estimating construct determines whether the second end component is at a short or a long distance and, responsive to that determination, the backoff construct adjusts transmit output voltage swing.

The present invention provides a synergistic phytochemical composition from Curcuma longa possessing analgesic and anti inflammatory activity used for management of chronic pain and treatment of osteoarthritis. The composition comprises Curcuma longa oil and Curcuma longa water extract. The relative amounts of these materials may be 0.5-5% by weight and 95-99.5% by weight respectively; and optionally pharmaceutically acceptable excipients.

The present invention also provides a process for preparing the composition.

The invention discloses a hot end device of a desktop-level FDM (frequency-division multiplexing) 3D printer. The hot end device comprises an extrusion head, wherein the extrusion head comprises an extrusion spray nozzle (1) with a hexagonal flange in middle, an extrusion head heat conduction block (3) with a mounting hole position, an extrusion head thermal insulation housing (4), a stainless steel throat tube (5), a polytetrafluoroethylene lining tube (7) arranged in the stainless steel throat tube (5) and an MCH ceramic heating plate (12), and further comprises a throat tube radiator arranged on the upper part of the stainless steel throat tube (5), wherein the throat tube radiator comprises two semiconductor refrigeration plates (6), a water-cooling heat conduction block (8), a water-cooling bent tube (9), a throat tube heat conduction block (10) and two tetrafluoro fixing parts (11); and the outer upper part of the extrusion spray nozzle (1) is further provided with an inner threaded copper sleeve (2) in a sleeved mode, and is in threaded connection with the lower part of the stainless steel throat tube (5) through the upper part of the inner threaded copper sleeve (2). The hot end device of the desktop-level FDM 3D printer has the advantages of being stable in printing performance, free of wire drawing and adhesion, good in printing effect, high in quality of a printed product, and the like.

A computer implemented method (200) is described for determining the equivalence of two sets of simultaneous linear algebraic equations. Each of said equations is of a form:

e_i1x₁+e_i2x₂+e_i3x₃+ . . . +e_iix_n=b_i

wherein x_j are unknowns, e_ij are coefficients and b_i are quantities, and defining the relationship between the unknowns within the set. The coefficients and quantities are known algebraic expressions. The unknowns are iteratively eliminated (250 to 280) from each of the sets of simultaneous linear algebraic equations until each of said equations are in the form:

(l_ii)_kx_i=(r_i)_k

wherein l_ii and r_i are algebraic expressions, and k={1;2} indicate one of said sets that said equation is derived from. The products (l_ii)₁*(r_i)₂ and (l_ii)₂*(r_i)₁ are compared (300) for each of the unknowns. Only if the products match (310) for all the unknowns are the two sets of simultaneous linear algebraic equations equivalent (312). An apparatus (100) for performing the above method (200) is also provided.

The invention discloses an in-situ remediation system and remediation method for an organic pollution site of light non-aqueous phase liquids (LNAPLs). The in-situ remediation system comprises a soil eluting remediation system and a solar power supply system. The soil eluting remediation system comprises a medicine storage device, a medicine injecting device, an extracting device, an eluant separating device, a groundwater processing device and an eluant recycling device. The medicine storage device is connected with the medicine injecting device, the groundwater processing device and the eluant recycling device. The extracting device is connected with the eluant separating device. The eluant separating device is connected with the groundwater processing device and the eluant recycling device. The solar power supply system comprises a solar power supply battery set, a storage battery set, a solar controller and an inverter. The in-situ remediation system is small in energy consumption, low in cost, high in pollutant removal rate, good in extract separating effect and high in recycling efficiency of groundwater and eluant.

A resistance spot welding method for a lap joint multi-metal sheets which may improve the welding efficiency and nugget quality comprises: coating a joining zone of one of two mutually facing surfaces of two adjacent metal sheets with an active agent with high resistivity to form a welding region, and clamping the welding region with an upper welding electrode and a lower welding electrode and providing an electric current into the welding region. The active agent with high resistivity generates high heat energy to melt the joining zone and join the two adjacent metal sheets. The active agent with high resistivity has a resistivity much greater than a resistivity of each of the two metal sheets, and the active agent with high resistivity consists of multi-component powders and an organic solvent.

The invention provides a bursting device. The bursting device comprises a test table, a support arranged on the test table and a base arranged on the test table. The bursting device further comprises a bursting clamping head, a stress and strain sensor connected with the bursting clamping head, a high speed photometer, a hydraulic servo motor, a stabbing cone and a jig. The hydraulic servo motor is connected with the bursting clamping head, and the bursting clamping head is connected with the stabbing cone. Such design significantly improves the fastness of clamping of textile/textile structure reinforced flexible composite material to be tested, reduces the relative slippage between a sample to be tested and the jip, reduces pulling-out of yarn from the textile structure, and improves the accuracy and reliability of a bursting test.

The process of treating industrial waste water from furfural production includes the following steps: 1) neutralizing tower bottom waste water to pH 7-8 via making it flow through one fluidized bed of limestone; 2) concentrating residual liquid through evaporating water inside one double-effect evaporation system; 3) adsorbing the residual liquid heated to boil with powdered active carbon inside one reactor and eccentrically filtering; and 4) stoving filtrate. The said treating process is completed with the production of furfural. The present invention utilizes waste water as useful resource.

The invention discloses a device and a method for realizing zero emission of desulfurization wastewater by utilizing flue gas waste heat. The system comprises a boiler, an SCR denitration reactor, anair preheater, a first dust remover and a wet desulfurization device, which are sequentially connected through a flue. The outlet flue of the SCR denitration reactor and the outlet flue of the air preheater are communicated with the inlet flue of a drying tower through bypass flues; a wastewater evaporation and concentration device is arranged between the first dust remover and the wet desulfurization device, and the wet desulfurization device is connected with a gypsum dehydration device. Medium-temperature flue gas between the first dust remover and the wet desulfurization device is used forcarrying out a concentration and reduction treatment on desulfurization wastewater, the amount of wastewater entering the drying tower is reduced, the extraction amount of hot flue gas can be reduced, and the influence of the system on the boiler efficiency is effectively reduced. Meanwhile, the flue gas behind the SCR denitration reactor and the air preheater is pumped to evaporate the wastewater, and the energy efficiency of the system can be effectively improved.

An integrated battery control system for energy storage incorporates a power control system to reliably provide power to a load and protects lithium ion batteries from over-charging and over-discharging. One or more power sources, such as renewable power sources, such as solar or wind power generators, or a generator, may be coupled with the integrated battery control system to provide power for charging the battery pack and/or for supplying power to said load. A portion of the power from a power source may be used to charge the battery pack and a portion may be provided to a load. A control circuit and one or more microprocessors may control the components of the system to provide power in an efficient manner. Power to and from the battery may run through an inverter and a control system may open and close switches to control flow of power in the system.

The invention provides a preparation method of a low-melting-point PBT copolyester fiber, which comprises the following steps: butanediol is used as a raw material, a direct esterification method is adopted, dibasic acid and dihydric alcohol monomers with the molar ratio of 1:1.5-1:2.5 are simultaneously added, esterification, prepolymerization and polymerization reaction are carried out under theaction of a catalyst, and the PBT copolyester with the melting point ranging from 140 DEG C to 190 DEG C is prepared, wherein the esterification reaction and the prepolymerization reaction are carried out in two stages. The prepared PBT polyester is subjected to melt spinning after being dried, and is subjected to oiling, balancing, winding and drafting after being cooled. According to the preparation method of the low-melting-point PBT copolyester fiber,, dibasic acid and dihydric alcohol monomers are simultaneously added in the polymerization process of the PBT, and the esterification and prepolymerization reaction processes are carried out in stages, so that the melting point of the PBT is reduced, the fluidity of the PBT melt is improved, the toughness of the PBT is increased, the impact strength is improved, the prepared low-melting-point PBT polyester fiber has the advantages of low modulus, high elasticity and good hand feeling, and can also be used as a substitute adhesive torealize the bonding function.

The invention relates to the technical field of automobiles, and discloses a starting system and a control method. The starting system comprises an engine, a generator, a control unit, a gas storage tank, a suction pipeline and an electromagnetic valve. The generator can drive the engine to rotate. The engine comprises a cylinder, a piston and a throttle valve, the cylinder is provided with a gas intake manifold, and the throttle valve is arranged on the gas intake manifold. The two ends of the suction pipeline can communicate with the gas storage tank and the gas inlet manifold correspondingly, and the throttle valve and the suction pipeline are sequentially arranged in the flowing direction of gas in the gas inlet manifold. And the electromagnetic valve is arranged on the suction pipeline. In the shutdown process, the throttle valve is closed, the electromagnetic valve is opened, the piston sucks air in the gas storage tank through the gas inlet manifold, and the pressure of the gas storage tank is reduced. In the starting process, the pressure of the gas storage tank is smaller than the maximum allowable pressure of the gas storage tank, the throttle valve is closed, the electromagnetic valve is opened, and the gas storage tank extracts air of the gas inlet manifold, so that the compression reaction force of the piston is reduced, the starting efficiency is improved, and the NVH performance of the engine is improved.

The invention relates to a preparing method and application of a composition provided with micron order holes and used for fused deposition modeling 3D printing. Macromolecular material particles aremade into wire rods through a screw extruder, supercritical CO2 fluid above the critical pressure and the critical temperature is adopted, the characteristics that the fluid is high in density, low inviscosity and large in diffusion coefficient are used, the fluid can be immersed into the macromolecular substrate, finally, pressure is relived suddenly, the micron order holes are formed in the macromolecular substrate, the holes range from 0.5 um to 100 um, the composition is adopted to prepare a product with multi-scale holes, holes with two kinds of different scales are achieved, the first kind of holes are formed in the fused deposition modeling printing process, the holes range from 0.1 mm to 1 mm, the other kind of holes are formed through the above composition, and the holes range from 0.1 um to 50 um.

The invention discloses a device for absorbing graphite dust, comprising a bracket. The bracket is provided with a motor (1), a speed reducer (2) and an I-beam (8). The motor (1) drives the speed reducer (2). The device is characterized in that the I-beam (8) is positioned right above a steel tube (10) made of an expanding pipe, the speed reducer (2) drives a pulley (5) to move along the I-beam (8) through a steel wire (7), the pulley (5) is fixedly connected with a dust absorbing hood (4) arranged below the pulley (5) and the dust absorbing hood (4) is connected with a draught fan (11) through a hose (9). The device ensures that the dust absorbing hood is positioned above the tail of the steel tube at any time by adopting a moving mode and effectively absorbs graphite diffused from a steel tube cavity to the outdoor at any time.

The invention relates to a cover pasting device and method for a liquid packing box. The device comprises a rotating frame (1) used for driving the liquid packing box to move, a gluing device (8) arranged on the rotating frame (1) and used for applying adhesive glue on the liquid packing box or a cover, and a cover pressing device (7) arranged on the rotating frame (1) and used for connecting thecover to the liquid packing box; and through the rotating frame (1), the liquid packing boxes are sorted and pass through the gluing device (8) and the cover pressing device (7), through the gluing device (8), the adhesive glue is applied on the liquid packing box or the cover, and through the cover pressing device (7), mounting of the cover and the liquid packing box is realized, so that the cover pasting effect of the liquid packing box is improved.

A liquid laundry detergent composition suitable for formulation into a water-soluble unit dose article, wherein the liquid laundry detergent composition includes a. an anionic surfactant, b. 1,2-propanediol; c. dipropylene glycoland a water-soluble unit dose article including said liquid laundry detergent composition.