Abstract: On-line synchronous registering co-extrusion SPC floor includes a base material layer, a decorative layer, and a wear-resistant layer. The decorative layer is arranged on the base material layer and provides patterns and designs. The wear-resistant layer is arranged on the decorative layer, is a transparent layer or a semi-transparent layer, and is provided with a concave-convex surface. The patterns or designs correspond to the concave-convex surface; the base material layer is composed of an elastic layer, a strength layer, and a stable layer, and shading is pressed on the bottom layer of the stable layer. Two co-extrusion lines are used for simultaneous extrusion to achieve an ABA three-layer effect of an SPC base material layer. A calender matches a synchronous registering system, and the patterns of the decorative layer are formed in a rolling manner.

Abstract: A magnetic particle imaging (MPI) and fluorescence molecular tomography (FMT)-fused multimodal imaging system and method for a small animal are provided. The multimodal imaging system includes an image processing module, a display module, a control module, an object table, a gradient coil, a driving coil, a reception coil, a fluorescence camera, and a light source module, where the gradient coil includes a first rounded rectangular coil and a second rounded rectangular coil; the driving coil includes a third rounded rectangular coil, a fourth rounded rectangular coil, and a fifth rounded rectangular coil; and the reception coil is a circular coil.

Abstract: Embodiments of the present invention disclose methods and systems in a vehicle having high voltage (HV) for measuring isolation impedance in an EV or HEV utilizing an AC impedance measurement system. The method utilizes an extraction algorithm based on a Fourier transform to calculate phase and amplitude and then utilizes the calculated phase and amplitude to determine the isolation impedance. The isolation impedance comprises leakage resistance and total capacitance that are coupled in parallel between the high voltage system and the chassis. Embodiments of the present invention also provide a method and systems for component value self-calibration.

Abstract: An airplane wing assembly includes a wing, a winglet and a connection element. The wing has a wing box. The wing box is located at a wing tip of the wing and the winglet is connected with the wing by the wing box. The connection element includes a butt joint rib, which is assembled with the wing box, and a center connection, which is assembled with the winglet. The butt joint rib has a first shearing pin hole and a second shearing pin hole, into which are press fitted a corresponding first and a second shearing pin respectively to form interference fit. The center connector has a first sleeve hole and a second sleeve hole.

Abstract: Disclosed is a stent with a drug coating for preventing and treating restenosis, comprising a stent and a drug coating covering the surface of the stent. The active ingredients in the drug coating are guaiane sesquiterpene compounds P1, P2 and P3. P1 is Zedoalactone B, P2 is a stereoisomer of P1, and P3 is Zedoarondiol. Compared with an existing sirolimus eluting stent, the present drug eluting stent can inhibit the intimal hyperplasia and the inflammatory reactions of vascular walls, and promote the endothelialization of blood vessels after the stent is implanted, and thus can prevent the long-term thrombotic complications; and has the advantages of small dosage, low cost, and no toxic side effect.

Abstract: The present invention discloses a method for synthesizing 25-hydroxy cholesterol. The method is as below: subjecting 24-dehydrocholesterol derivative as a raw material, which undergoes an addition reaction with a hydroxyl containing reagent in an organic solvent under catalysis, and then hydrolyzing the reaction product and separating to obtain 25-hydroxy cholesterol. The present invention adopts hydroxyl containing reagents such as water, formic acid, acetic acid, propionic acid, butyric acid, benzoic acid, p-methyl benzoic acid to replace the commonly used extremely toxic reagents such as Cr reagent, Hg reagent and polyfluorinated acetone in the prior art. The raw materials of the present invention are easily available, and have low effect on environment. The operation and post treatment are convenient.

Abstract: An airplane wing assembly includes a wing, a winglet and a connection element. The wing has a wing box. The wing box is located at a wing tip of the wing and the winglet is connected with the wing by the wing box. The connection element includes a butt joint rib, which is assembled with the wing box, and a center connection, which is assembled with the winglet. The butt joint rib has a first shearing pin hole and a second shearing pin hole, into which are press fitted a corresponding first and a second shearing pin respectively to form interference fit. The center connector has a first sleeve hole and a second sleeve hole.

Abstract: Disclosed is a stent with a drug coating for preventing and treating restenosis, comprising, a stent and a drug coating covering the surface of the stent. The active ingredients in the drug coating are guaiane sesquiterpene compounds P1, P2 and P3. P1 is Zedoalactone B, P2 is a stereoisomer of P1, and P3 is Zedoarondiol. Compared with an existing sirolimus eluting stent, the present drug eluting stent can inhibit the intimal hyperplasia and the inflammatory reactions of vascular walls, and promote the endothelialization of blood vessels after the stent is implanted, and thus can prevent the long-term thrombotic complications; and has the advantages of small dosage, low cost, and no toxic side effect.

Abstract: The present invention discloses a method for synthesizing 25-hydroxy cholesterol. The method is as below: subjecting 24-dehydrocholesterol derivative as a raw material, which undergoes an addition reaction with a hydroxyl containing reagent in an organic solvent under catalysis, and then hydrolyzing the reaction product and separating to obtain 25-hydroxy cholesterol. The present invention adopts hydroxyl containing reagents such as water, formic acid, acetic acid, propionic acid, butyric acid, benzoic acid, p-methyl benzoic acid to replace the commonly used extremely toxic reagents such as Cr reagent, Hg reagent and polyfluorinated acetone in the prior art. The raw materials of the present invention are easily available, and have low effect on environment. The operation and post treatment are convenient.

Abstract: A method for forming conductive contacts in a dielectric layer is provided. Partial vias are etched into the dielectric layer through a via mask. Trenches are etched into the dielectric layer through a trench mask, wherein the etching the trenches completes and over etches the vias to widen bottoms of the vias. Tops of the trenches or vias are rounded.

Abstract: A method for forming conductive contacts in a dielectric layer is provided. Partial vias are etched into the dielectric layer through a via mask. Trenches are etched into the dielectric layer through a trench mask, wherein the etching the trenches completes and over etches the vias to widen bottoms of the vias. Tops of the trenches or vias are rounded.

Abstract: A self-cleaning device of a filtering net is disposed in a wall-hanging type air conditioner and includes a filtering net with an upper filtering net and a front filtering net, which is disposed outside a heat exchanger and is used for absorbing dust in the air passing through the heat exchanger. A dust sweeping assembly with a detachable brush is disposed outside the filtering net, and is used for sweeping the dust adhered on the filtering net. A drive device with a drive motor and a transmission mechanism is used for driving the dust sweeping assembly to slide on the filtering net to sweep off the dust. A dust box is used for collecting the dust and is detachably disposed in the air conditioner to clear up the dust in the box. A dust exchanging device is disposed on the left or right side of the filtering net, and is used for transferring the dust swept out by the sweeping assembly into the dust box.

Abstract: A self-cleaning device of a filtering net is disposed in a wall-hanging type air conditioner and includes a filtering net with an upper filtering net and a front filtering net, which is disposed outside a heat exchanger and is used for absorbing dust in the air passing through the heat exchanger. A dust sweeping assembly with a detachable brush is disposed outside the filtering net, and is used for sweeping the dust adhered on the filtering net. A drive device with a drive motor and a transmission mechanism is used for driving the dust sweeping assembly to slide on the filtering net to sweep off the dust. A dust box is used for collecting the dust and is detachably disposed in the air conditioner to clear up the dust in the box. A dust exchanging device is disposed on the left or right side of the filtering net, and is used for transferring the dust swept out by the sweeping assembly into the dust box.

Abstract: A DC-DC converter includes a control circuit for generating a pulse width modulated signal based on a voltage of an output node. A first switch is connected to conduct during pulses, and a second switch conducts between pulses. The first switch is connected to an internal power node and the second is connected to a current return node. There is a common node between the first switch and the second switch. The voltage of the common node is supplied to an output node. An input power switch supplies voltage to the internal power node. An over-voltage protection circuit is connected to receive an over-voltage fault signal from the control circuit, and it is connected to control a bias of the control terminal of the input power switch to cause the input power switch not to conduct during an event causing an over-voltage fault signal, whereby a load connected to the output node is protected.

Abstract: A DC-DC converter includes a control circuit for generating a pulse width modulated signal based on a voltage of an output node. A first switch is connected to conduct during pulses, and a second switch conducts between pulses. The first switch is connected to an internal power node and the second is connected to a current return node. There is a common node between the first switch and the second switch. The voltage of the common node is supplied to an output node. An input power switch supplies voltage to the internal power node. An over-voltage protection circuit is connected to receive an over-voltage fault signal from the control circuit, and it is connected to control a bias of the control terminal of the input power switch to cause the input power switch not to conduct during an event causing an over-voltage fault signal, whereby a load connected to the output node is protected.

Abstract: In the vitreous, collagen fibrils and hyaluronan molecules form independent networks that interact to maintain the transparency of the vitreous gel. The discovery of the full length cDNA sequence of human vitrin makes it possible to produce the protein and its separate domains by known biotechnological means. It was found that vitrin is released from the collagen fibrils at high salt concentrations. The protein and expressed domains of the invention may be used to facilitate healing of weakened or injured connective tissue.