Abstract: The present invention discloses a mixture of fucosylated chondroitin sulfate oligosaccharides having an average molecular weight between 2700 Da and 3600 Da, in which 90% of total components has a molecular weight between 1800 Da and 5400 Da. The mixture of fucosylated chondroitin sulfate oligosaccharide of the present invention has very low anti-FIIa factor activity, very low anti-FXa factor activity, very high anti-FXase factor activity, i.e., having a significant activity in selectively inhibiting intrinsic FXase, and a significant antithrombotic activity and no risk of bleeding and hypotension that are proved through animal experiments. The present invention also discloses a method for rapidly producing fucosylated chondroitin sulfate oligosaccharides by using sea cucumber as raw material, and the method includes: intercepting and concentrating crude polysaccharide with a membrane, deacetylation with hydrazine, pyrolysis with nitrous acid, reduction with sodium borohydride, membrane separation, etc.

Abstract: A watchband connecting piece including a body and a sliding button. A sliding slot and a buckling slot are disposed on the body, where elastic positioning pieces are disposed on the sliding button, and the elastic positioning pieces elastically protrude from a surface of the sliding button. The sliding button extends from the opening and is clamped with the buckling slot to form locking space, and the elastic positioning pieces are limited to a first position of a slot bottom wall of the sliding slot. The sliding button is unlocked from the buckling slot, and the elastic positioning pieces are limited to a second position of the slot bottom wall of the sliding slot.

Abstract: Disclosed is a conveying and positioning system and method, which is applied in the technical field of conveyance in the automotive industry and comprises a roller machine, a conveying trolley and an intelligent variable-frequency controller, wherein the conveying trolley is provided with a reflector; the roller machine is provided with a driving mechanism and a distance sensor; and, the driving mechanism comprises a driving motor controlled by the intelligent variable-frequency controller and a rotary encoder capable of feeding back rotation speed information of the driving motor to the intelligent variable-frequency controller.

Abstract: Disclosed is a friction conveying system, comprising a friction driving unit, a clamping unit and a friction driving component, wherein the friction driving unit comprises a rotation driving component, a first connecting rod, a second connecting rod, at least one first rollers arranged on the first connecting rod, and at least one second rollers arranged on the second connecting rod, the clamping unit comprises a clamping driving component by which the first connecting rod and the second connecting rod are moved towards each other to cause the first rollers and the second rollers to clamp the friction driving component, the first rollers and/or the second rollers are drivable by the rotation driving component to rotate, causing the friction driving component clamped between the first rollers and the second rollers to move by means of frictional force.

Abstract: Disclosed is a conveying and positioning system and method, which is applied in the technical field of conveyance in the automotive industry and comprises a roller machine, a conveying trolley and an intelligent variable-frequency controller, wherein the conveying trolley is provided with a reflector; the roller machine is provided with a driving mechanism and a distance sensor; and, the driving mechanism comprises a driving motor controlled by the intelligent variable-frequency controller and a rotary encoder capable of feeding back rotation speed information of the driving motor to the intelligent variable-frequency controller.

Abstract: A system and method are disclosed for desulfating an oxidation catalyst in an aftertreatment system of a multifuel internal combustion engine. The oxidation catalyst can be desulfated in response to one or more desulfation triggering events. The desulfation process includes providing hydrocarbons from one or all of the multiple fuel sources to an upstream oxidation catalyst. The hydrocarbons react with the exhaust gas within the upstream oxidation catalyst to deplete oxygen in the exhaust flow to thereby reduce the desulfation temperature of the oxidation catalyst while elevating a temperature of the exhaust gas to a desulfation temperature range.

Abstract: Disclosed is a friction conveying system, comprising a friction driving unit, a clamping unit and a friction driving component, wherein the friction driving unit comprises a rotation driving component, a first connecting rod, a second connecting rod, at least one first rollers arranged on the first connecting rod, and at least one second rollers arranged on the second connecting rod, the clamping unit comprises a clamping driving component by which the first connecting rod and the second connecting rod are moved towards each other to cause the first rollers and the second rollers to clamp the friction driving component, the first rollers and/or the second rollers are drivable by the rotation driving component to rotate, causing the friction driving component clamped between the first rollers and the second rollers to move by means of frictional force.

Abstract: The embodiments disclose a ground sliding type flexible framing system, comprising a vehicle body transport system, welding systems, framing fixtures, a splicing system, a fixture storage system and a fixture switching system. The fixture storage system comprises a plurality of bidirectional sliding rails arranged in parallel, storage positions for storing framing fixtures are formed on the bidirectional sliding rails, and the fixture switching system comprises a left and a right sliding table transport rail which are led to two sides of the splicing system from two ends of the bidirectional sliding rails, fixture transport rails led to the left and the right sliding table transport rail from two sides of the splicing system, respectively, sliding tables capable of running on the left and the right sliding table transport rail and a transport mechanism capable of pulling the framing fixtures positioned on the bidirectional sliding rails and the fixture transport rails.

Abstract: The embodiments disclose a ground sliding type flexible framing system, comprising a vehicle body transport system, welding systems, framing fixtures, a splicing system, a fixture storage system and a fixture switching system. The fixture storage system comprises a plurality of bidirectional sliding rails arranged in parallel, storage positions for storing framing fixtures are formed on the bidirectional sliding rails, and the fixture switching system comprises a left and a right sliding table transport rail which are led to two sides of the splicing system from two ends of the bidirectional sliding rails, fixture transport rails led to the left and the right sliding table transport rail from two sides of the splicing system, respectively, sliding tables capable of running on the left and the right sliding table transport rail and a transport mechanism capable of pulling the framing fixtures positioned on the bidirectional sliding rails and the fixture transport rails.

Abstract: A system and method are disclosed for desulfating an oxidation catalyst in an aftertreatment system of a multifuel internal combustion engine. The oxidation catalyst can be desulfated in response to one or more desulfation triggering events. The desulfation process includes providing hydrocarbons from one or all of the multiple fuel sources to an upstream oxidation catalyst. The hydrocarbons react with the exhaust gas within the upstream oxidation catalyst to deplete oxygen in the exhaust flow to thereby reduce the desulfation temperature of the oxidation catalyst while elevating a temperature of the exhaust gas to a desulfation temperature range.

Abstract: Described herein is a selective catalytic reduction (SCR) catalyst treatment system that includes a vanadium-based SCR catalyst contaminated with a water-soluble contaminant. The SCR catalyst treatment system also includes a water delivery system that is configured to apply water to the vanadium-based SCR catalyst to remove the water-soluble contaminant from the vanadium-based SCR catalyst.

Abstract: Described herein is a selective catalytic reduction (SCR) catalyst treatment system that includes a vanadium-based SCR catalyst contaminated with a water-soluble contaminant. The SCR catalyst treatment system also includes a water delivery system that is configured to apply water to the vanadium-based SCR catalyst to remove the water-soluble contaminant from the vanadium-based SCR catalyst.

Abstract: Described herein is a selective catalytic reduction (SCR) catalyst treatment system that includes a vanadium-based SCR catalyst contaminated with a water-soluble contaminant. The SCR catalyst treatment system also includes a water delivery system that is configured to apply water to the vanadium-based SCR catalyst to remove the water-soluble contaminant from the vanadium-based SCR catalyst.

Abstract: Described herein is a selective catalytic reduction (SCR) catalyst treatment system that includes a vanadium-based SCR catalyst contaminated with a water-soluble contaminant. The SCR catalyst treatment system also includes a water delivery system that is configured to apply water to the vanadium-based SCR catalyst to remove the water-soluble contaminant from the vanadium-based SCR catalyst.

Abstract: Methods and systems include an operation to interpret a face-plugging index and/or a reduction in an expected oxidation efficiency of an oxidation catalyst disposed in an internal combustion engine aftertreatment system, and in response to the face-plugging index or the reduction oxidation efficiency reaching a threshold value, an operation to provide a catalyst element reversal command.