Abstract: Apparatus and methods are related to treating waste water containing ammonium salts, which contains NH4+, SO42?, Cl?, and Na+. In such a method, the pH value of the waste water to be treated is adjusted to a specific range in advance; sodium sulfate crystal and relatively concentrated ammonia are obtained by first evaporation, and then sodium chloride crystal and relatively dilute ammonia is obtained by second evaporation; alternatively, sodium chloride crystal and relatively concentrated ammonia is obtained by third evaporation, and then sodium sulfate crystal and relatively dilute ammonia are obtained by fourth evaporation. Ammonia, sodium sulfate, and sodium chloride from the waste water are recovered so that the resources in the waste water can be reused.

Abstract: An electric power steering apparatus and a control method thereof are disclosed. One example electric power steering apparatus includes: a first motor, configured to provide steering assistance corresponding to rotation of a steering wheel, wherein the first motor is powered by two power supplies, and each of the two power supplies drives the first motor to generate part of the steering assistance; and a second motor, configured to provide additional steering assistance corresponding to the rotation of the steering wheel when the first motor loses part or all of the steering assistance, wherein the additional steering assistance comprises at least part of the steering assistance lost by the first motor, and the second motor is driven by one power supply coupled from the two power supplies, to generate the additional steering assistance.

Abstract: The present disclosure provides an extrusion forming die for a cabin component. The extrusion forming die for a cabin component comprises an upper die assembly, a lower die assembly and a combined concave die. The upper die assembly comprises an extrusion punch (3), and the combined concave die comprises an M-shaped outer concave die (4) having a hollow cavity matched with the extrusion punch (3), and a W-shaped inner concave die (5) having a rotary cavity. The W-shaped inner concave die (5) is arranged in the rotary cavity of the M-shaped outer concave die (4) in a matched manner, and the rotary cavity and the hollow cavity are matched to form a rotary extrusion die cavity (18) with a W-shaped longitudinal section.

Abstract: The present invention discloses a digital photolithography method for a fiber optic device (FOD) based on a DMD combination. In this method, reflected light modulated by two DMDs is simultaneously projected onto a same position on an optical fiber end surface through one reduction projection lens. The two DMDs form a primary and secondary digital mask for joint control of an exposure dose distribution formed when patterns are shrunk and projected onto the optical fiber end surface. After the optical fiber end surface coated with photoresist is subject to this dose of exposure, developing, fixing, and etching are conducted, to form a micro-optic device on the optical fiber end surface. In the present invention, distribution of the exposure dose jointly modulated by a digital mask combination formed by the primary and secondary DMD exceeds an order of modulation of an exposure dose by a single DMD.

Abstract: The present disclosure provides an extrusion forming die for a cabin component. The extrusion forming die for a cabin component comprises an upper die assembly, a lower die assembly and a combined concave die. The upper die assembly comprises an extrusion punch (3), and the combined concave die comprises an M-shaped outer concave die (4) having a hollow cavity matched with the extrusion punch (3), and a W-shaped inner concave die (5) having a rotary cavity. The W-shaped inner concave die (5) is arranged in the rotary cavity of the M-shaped outer concave die (4) in a matched manner, and the rotary cavity and the hollow cavity are matched to form a rotary extrusion die cavity (18) with a W-shaped longitudinal section.

Abstract: The present disclosure provides a rotary extrusion forming method for a cabin section workpiece, comprising the following steps of: first preparing a hollow truncated cone-shaped blank; heating the prepared blank to a molding temperature and holding, and preheating a female die and a male die to above the molding temperature and holding; assembling an upper die assembly on a press; applying lubricant on the female die and the male die, and placing and fixing the blank into a die cavity of the female die; starting up a rotation driving device to drive the female die to rotate on a lower die base, so that the female die drives the blank to rotate; starting up the press to make the male die move down to a machining position of the blank in the female die cavity through the upper die assembly, and machining inner side walls of the blank.

Abstract: Searching is assisted by recognizing a selection of text from a document as an indication that a user wishes to initiate a search based on the selected text. The user is provided with query suggestions based on the selected text and the query suggestions are ranked based on a context provided by the document. The user may select the text by using a mouse, drawing a circle around the text on a touch screen, or by other input techniques. The query suggestions may be based on query reformulation or query expansion techniques applied to the selected text. Context provided by the document is used by a language model and/or an artificial intelligence system to rank the query suggestions in predicted order of relevance based on the selected text and the context.

Abstract: In a method for treating waste water containing ammonium salts, sodium sulfate crystal is obtained by freezing crystallization, then the pH value of the waste water is adjusted to a specific range, and next sodium chloride crystal and ammonia water is obtained by evaporation. Alternatively, the pH value of the waste water is adjusted to a specific range, then sodium chloride crystal and ammonia water is obtained by evaporation, and next sodium sulfate crystal is obtained by freezing crystallization. This method can recover ammonia, sodium sulfate, and sodium chloride from the waste water.

Abstract: Apparatus and methods are related to treating waste water containing ammonium salts, which contains NH4+, SO42?, Cl?, and Na+. In such a method, the pH value of the waste water to be treated is adjusted to a specific range in advance; sodium sulfate crystal and relatively concentrated ammonia are obtained by first evaporation, and then sodium chloride crystal and relatively dilute ammonia is obtained by second evaporation; alternatively, sodium chloride crystal and relatively concentrated ammonia is obtained by third evaporation, and then sodium sulfate crystal and relatively dilute ammonia are obtained by fourth evaporation. Ammonia, sodium sulfate, and sodium chloride from the waste water are recovered so that the resources in the waste water can be reused.

Abstract: In a method for treating waste water containing ammonium salts, sodium sulfate crystal is obtained by freezing crystallization, then the pH value of the waste water is adjusted to a specific range, and next sodium chloride crystal and ammonia water is obtained by evaporation. Alternatively, the pH value of the waste water is adjusted to a specific range, then sodium chloride crystal and ammonia water is obtained by evaporation, and next sodium sulfate crystal is obtained by freezing crystallization. This method can recover ammonia, sodium sulfate, and sodium chloride from the waste water.

Abstract: The present invention discloses a digital photolithography method for a fiber optic device (FOD) based on a DMD combination. In this method, reflected light modulated by two DMDs is simultaneously projected onto a same position on an optical fiber end surface through one reduction projection lens. The two DMDs form a primary and secondary digital mask for joint control of an exposure dose distribution formed when patterns are shrunk and projected onto the optical fiber end surface. After the optical fiber end surface coated with photoresist is subject to this dose of exposure, developing, fixing, and etching are conducted, to form a micro-optic device on the optical fiber end surface. In the present invention, distribution of the exposure dose jointly modulated by a digital mask combination formed by the primary and secondary DMD exceeds an order of modulation of an exposure dose by a single DMD.

Abstract: The present invention relates to the waste water treatment field, and discloses apparatus and method for treating waste water containing ammonium salts, which contains NH4+, SO42?, Cl?, and Na+. In the method of the present invention, the pH value of the waste water to be treated is adjusted to a specific range in advance; sodium sulfate crystal and relatively concentrated ammonia are obtained by first evaporation, and then sodium chloride crystal and relatively dilute ammonia is obtained by second evaporation; alternatively, sodium chloride crystal and relatively concentrated ammonia is obtained by third evaporation, and then sodium sulfate crystal and relatively dilute ammonia are obtained by fourth evaporation. The method of the present invention can recover ammonia, sodium sulfate, and sodium chloride from the waste water respectively, so that the resources in the waste water can be reused as far as possible.

Abstract: A special-purpose die for shaping an aluminum-magnesium alloy by rotating extrusion is provided, including a male die and a female die, wherein a trapezoidally-sectioned groove is formed at an end portion of a working area of the male die, an inner portion of the male die is hollow, with the hollow inner portion having sections of equal area, a circumferential wall of a die cavity of the female die is provided with at least two symmetrical axial grooves, and a cavity is formed inside a clamping part of the female die. The present disclosure remarkably reduces the axial extrusion force such that the deformation of the formed workpiece is more uniform, which greatly improves the mechanical property of the formed workpiece.

Abstract: Provided is a method of forming a cup-shaped aluminum-magnesium-alloy article by rotary extrusion, including the following steps. (1) Blanking. (2) Performing rotary extrusion: placing a cylindrical billet into a concave die cavity, wherein a peripheral wall of the cavity of the concave die is provided with at least two symmetrical axial grooves; inserting a convex die into the concave die cavity, wherein an end of a working region of the convex die is provided with a groove of a trapezoidal cross section; subjecting the convex die to forward extrusion and heating, and simultaneously rotating and heating the concave die, wherein an integral torque is formed during the extrusion process of the convex die by using the cylindrical billet inside the groove having a trapezoidal cross section, and wherein a synchronized rotation with the concave die is achieved by using a metallic billet that flows into the axial groove. (3) Demolding.

Abstract: In one aspect, the present disclosure belongs to the new material field and can be used to produce atomic-state fluid iodine by iodine atom rearrangement occurring in the pseudo-critical reaction system. In one aspect, the atomic-state fluid iodine has a specific gravity of about 3.8-4.0 g/mL and maintains stable physical state under 10-100 C and light environment without sublimation or decomposition.

Abstract: Provided is a high-concentration carbonyl sulfide conversion-absorption type desulfurizer for use at medium-low temperature and preparation method thereof. The desulfurizer comprises 50%-75% magnetic iron oxide red (Fe21.333O32), 5%-10% alkali metal oxide (K2O), 5-35% anatase TiO2, and 5-10% shaping binder. The method of preparing the desulfurizer comprises: uniformly mixing a metatitanic acid prepared using ferrous sulfate recycled as a by-product from titanium dioxide production with K2CO3, calcining to activate at 500° C.-700° C., mixing with the magnetic iron oxide red and binder, roll molding at room temperature to form balls which are dried at 100° C.-150° C. to obtain the desulfurizer. The desulfurizer has a hydrolysis conversion of carbonyl sulfide higher than 99%, and has a higher sulfur capacity more than 25%.

Abstract: In one aspect, the present disclosure belongs to the new material field and can be used to produce atomic-state fluid iodine by iodine atom rearrangement occurring in the pseudo-critical reaction system. In one aspect, the atomic-state fluid iodine has a specific gravity of about 3.8-4.0 g/mL and maintains stable physical state under 10-100 C and light environment without sublimation or decomposition.

Abstract: Multiple lock assemblies are distributed on a chip, each lock assembly manage a lock application message for applying for a lock and a lock release message for releasing a lock that are sent by one small core. Specifically, embodiments include receiving a lock message sent by a small core, where the lock message carries a memory address corresponding to a lock requested by a first thread in the small core; calculating, using the memory address of the requested lock, a code number of a lock assembly to which the requested lock belongs; and sending the lock message to the lock assembly corresponding to the code number, to request the lock assembly to process the lock message.

Abstract: The present invention discloses a rotary extrusion producing mold for producing an inner ring rib with a large aspect ratio formed of a hollow billet, which consists of a concave die, a left half convex die, a right half convex die, a mandrel, a lower core support and an elastic supporting mechanism, the left and right half convex dies are fixed onto an upper template connected with a slider and a horizontal hydraulic cylinder, a left drive hydraulic cylinder and a right drive hydraulic cylinder are mounted at both ends of the upper template, respectively, the lower core support passes through a middle of the concave die, the elastic supporting mechanism is mounted at a bottom of the lower core support, a drive gear is mounted on a side face of the concave die, and the mandrel is disposed between the left and right half convex dies.

Abstract: The present invention discloses a rotary extrusion producing method for producing an inner ring rib with a large aspect ratio formed of a hollow billet, which includes: combining, at an initial stage of rotary extrusion, two convex dies together and driving, by a slider on a press machine, left and right half convex dies to extrude a blank downward to form an initial profile of a transverse rib; dragging respectively, by left and right horizontal hydraulic cylinders, the left and right half convex dies to move in a radial direction, to form an initial cylindrical wall, so as to achieve a purpose of forming the transverse rib, once the blank is extruded downward by a certain depth, where a head of a mandrel is set to be at a certain conical degree, and a certain number of processed pits are distributed on an inner cavity of a concave die.