Abstract: The present disclosure provides a method for preparing aliphatic polyketone by continuous solution polymerization process and aliphatic polyketone; the method comprises the following steps: a) continuously feeding carbon monoxide, an olefin compound and a solvent system containing catalyst into a continuous flow reactor for solution polymerization to obtain an aliphatic polyketone; wherein the aliphatic polyketone has a particle size of 10 ?m˜50 ?m, a particle size distribution width Span of 0.5˜0.9, and a bulk density >0.35 g/ml.

Abstract: This application discloses a three-mode toy gun which comprises a gun shell, a firing cylinder assembly, a transmission gear train, a mating member and a trigger mechanism. An electric drive mechanism comprises a motor and a power supply cable having a first switch and a second switch connected in series. The mating member is movably provided in the gun shell, and the mating member has a first position, a second position and a third position. The trigger mechanism is arranged in the gun shell, and the trigger mechanism has a trigger and a convex bar. The three-mode toy gun is provided with a single-action mode, an automatic mode and a manual mode by means of mating arrangement of the structural members, which provides players with three use experiences and satisfies the preferences of different players.

Abstract: An array substrate and an organic light-emitting diode (OLED) display device are provided. The array substrate includes: a thin-film transistor (TFT) substrate and a plurality of driver integrated circuits (ICs), the TFT substrate includes a substrate and a plurality of pixel units disposed on one surface of the substrate; and the plurality of driver ICs are disposed on the other surface of the substrate and configured to transmit signals to the pixel units. In the array substrate, the driver ICs can have enough driving capability to drive the pixel units, so that the image brightness displayed by the OLED display device can become more uniform.

Abstract: An in-situ purification island structure and the construction method thereof, which refers to the field of sewage treatment technology. The in-situ purification island structure comprises the upstream purification island main body and the downstream purification island main body, in which the upstream purification island main body comprises the first base backfill layer, the first lower layer, the first hydrophobic layer, the first water permeable layer and the first upper layer. The first ecological bags are set around the surface of the first base backfill layer. The first lower layer has center formed with a lower layer backfill transitional zone. The first hydrophobic layer has center formed with a hydrophobic layer backfill transitional zone. It has a good natural purifying effect on the sewage, saves the investment and cost, no limitation on the applications, the capacity and efficiency of the purifying is high, and saves the resource.

Abstract: A device for artificial wetland sewage treatment, which comprises a vertical flow artificial wetland bed body with an openmouthed upper portion, a vertical flow sewage treatment artificial wetland arranged on the vertical flow artificial wetland bed body, a diversion canal formed at one end of the vertical flow artificial wetland bed body, a draining ditch formed at the other end of the vertical flow artificial wetland bed body, a baffle wall dividing into a first wetland unit and a second wetland unit, an upper water conduit with an upper water conduit inlet valve at one end. It ensures the service life of the vertical flow sewage treatment artificial wetland and avoids pipe blockage; has the lasting purification treatment capacity; has a simple structure and can achieve the low cost of construction and convenient operation management; and has a long-term stable use effect.

Abstract: A substrate and a display device are provided. The substrate includes a plurality of pixel groups arranged in rows and columns, the pixel groups each include a 3×3 array of sub-pixels which are at least two red sub-pixels (R), at least two green sub-pixels (G), at least two blue sub-pixels (B) and one white sub-pixel (W) with the white sub-pixel (W) in the center of the 3×3 sub-pixel array. Sub-pixels of the pixel group constitute two pixel units, which share the white sub-pixel (W). Each pixel unit includes at least one red sub-pixel (R), at least one green sub-pixel (G), at least one blue sub-pixel (B) and one white sub-pixel (W). With this substrate, data volume and the number of outputting lines of a data chip can be reduced so as to simplify the structure of an array substrate or a color filter substrate.

Abstract: In the method provided by the present disclosure, the driving voltage for the pixel circuit is dynamically adjusted in accordance with data voltages in each pixel row. Accordingly, as compared with a traditional method where a constant voltage is applied to the pixel circuit, the method provided therein is able to greatly reduce a dynamic loss and a temperature rise of an OLED pixel circuit and prolong the life of the OLED while reducing the driving cost.

Abstract: The present disclosure provides a pixel circuit, its driving method, an array substrate and a display device. The pixel circuit includes a plurality of pixels, each of which includes a blue sub-pixel and a driving module for driving the blue sub-pixel. The blue sub-pixel includes N blue OLEDs, and N is a positive integer greater than 1. The driving module is configured to drive the N blue OLEDs in a time division manner. According to the present disclosure, the blue sub-pixel is segmented into several portions, and merely a portion of the blue sub-pixel is displayed each time. As a result, it is able to prolong the service time of the blue sub-pixel, thereby to increase the service life of an AMOLED panel.

Abstract: A device for artificial wetland sewage treatment, which comprises a vertical flow artificial wetland bed body with an openmouthed upper portion, a vertical flow sewage treatment artificial wetland arranged on the vertical flow artificial wetland bed body, a diversion canal formed at one end of the vertical flow artificial wetland bed body, a draining ditch formed at the other end of the vertical flow artificial wetland bed body, a baffle wall dividing into a first wetland unit and a second wetland unit, an upper water conduit with an upper water conduit inlet valve at one end. It ensures the service life of the vertical flow sewage treatment artificial wetland and avoids pipe blockage; has the lasting purification treatment capacity; has a simple structure and can achieve the low cost of construction and convenient operation management; and has a long-term stable use effect.

Abstract: An in-situ purification island structure and the construction method thereof, which refers to the field of sewage treatment technology. The in-situ purification island structure comprises the upstream purification island main body and the downstream purification island main body, in which the upstream purification island main body comprises the first base backfill layer, the first lower layer, the first hydrophobic layer, the first penetrating water layer and the first upper layer. The first ecological bags are set around the surface of the first base backfill layer. The first lower layer has center formed with a lower filling layer. The first hydrophobic layer has center formed with a hydrophobic filling layer. It has a good natural purifying effect on the sewage, saves the investment and cost, no limitation on the applications, the capacity and efficiency of the purifying is high, and saves the resource.

Abstract: A substrate and a display device are provided. The substrate includes a plurality of pixel groups arranged in rows and columns, the pixel groups each include a 3×3 array of sub-pixels which are at least two red sub-pixels (R), at least two green sub-pixels (G), at least two blue sub-pixels (B) and one white sub-pixel (W) with the white sub-pixel (W) in the center of the 3×3 sub-pixel array. Sub-pixels of the pixel group constitute two pixel units, which share the white sub-pixel (W). Each pixel unit includes at least one red sub-pixel (R), at least one green sub-pixel (G), at least one blue sub-pixel (B) and one white sub-pixel (W). With this substrate, data volume and the number of outputting lines of a data chip can be reduced so as to simplify the structure of an array substrate or a color filter substrate.

Abstract: The present disclosure provides a pixel circuit, its driving method, an array substrate and a display device. The pixel circuit includes a plurality of pixels, each of which includes a blue sub-pixel and a driving module for driving the blue sub-pixel. The blue sub-pixel includes N blue OLEDs, and N is a positive integer greater than 1. The driving module is configured to drive the N blue OLEDs in a time division manner. According to the present disclosure, the blue sub-pixel is segmented into several portions, and merely a portion of the blue sub-pixel is displayed each time. As a result, it is able to prolong the service time of the blue sub-pixel, thereby to increase the service life of an AMOLED panel.

Abstract: A multi-path constant current driving circuit. In the multi-path constant current driving circuit, a current sharing transformer (T31, T32, T33, T3(n?1)) is provided in power supply circuits which are provided with adjacent rectifier and filter units (Z31, Z32, Z33, Z3n). A first winding of the current sharing transformer (T31, T32, T33, T3(n?1)) is connected between a first terminal of a secondary winding of a first power supply circuit and the rectifier and filter unit (Z31, Z32, Z33, Z3n) of the first power supply circuit. A second winding of the current sharing transformer (T31, T32, T33, T3(n?1)) is connected between a first terminal of a secondary winding of a second power supply circuit and the rectifier and filter unit (Z31, Z32, Z33, Z3n) of the second power supply circuit. In-phase current flows through the dotted terminal of the first winding and the synonym terminal of the second winding of the current sharing transformer (T31, T32, T33, T3(n?1)).

Abstract: An array substrate and an organic light-emitting diode (OLED) display device are provided. The array substrate includes: a thin-film transistor (TFT) substrate and a plurality of driver integrated circuits (ICs), the TFT substrate includes a substrate and a plurality of pixel units disposed on one surface of the substrate; and the plurality of driver ICs are disposed on the other surface of the substrate and configured to transmit signals to the pixel units. In the array substrate, the driver ICs can have enough driving capability to drive the pixel units, so that the image brightness displayed by the OLED display device can become more uniform.

Abstract: In the method provided by the present disclosure, the driving voltage for the pixel circuit is dynamically adjusted in accordance with data voltages in each pixel row. Accordingly, as compared with a traditional method where a constant voltage is applied to the pixel circuit, the method provided therein is able to greatly reduce a dynamic loss and a temperature rise of an OLED pixel circuit and prolong the life of the OLED while reducing the driving cost.

Abstract: A constant-current Light Emitting Diode (LED) driver circuit is provided, and the circuit includes: an output voltage adjustable circuit and at least one path of LED load, wherein the output voltage adjustable circuit comprises: a switch converting main circuit, an output characteristic parameter sampling circuit, and an output voltage controller.

Abstract: A circuit to improve the power factor of a power supply at light load, the circuit including a rectifier bridge, a filter positioned before or after the rectifier bridge, a logic control and power drive circuit, a switching transistor, a light load detecting circuit configured to output a control signal to the logic control and power drive circuit which controls the switching transistor to conduct when a heavy load is experienced and to cut off when a light load is experienced, in order to control the working status of the filter capacitor, and a power factor correction circuit.

Abstract: A multi-path constant current drive circuit includes a DC/AC converter, a main transformer and at least two rectifying and filtering units. The main transformer includes at least one assistant side winding with a tap; together with the assistant side winding of the main transformer, each of the at least two rectifying and filtering units respectively forms a power supply loop; each power supply loop includes a first rectifying loop and a second rectifying loop, which are relatively used for the rectification of the positive and the negative half-cycle alternating voltage; a current-equalizing transformer is arranged between the adjacent first power supply loop and second power supply loop, the windings of the current-equalizing transformer are respectively in the rectifying loops contained in the first power supply loop and the second power supply loop, thus realizing the current equalization between the different rectifying loops in which the adjacent rectifying and filtering units are contained.

Abstract: Provided are a method, apparatus and system for controlling a light source. The method comprises: acquiring an adjustment signal and determining a dimming item according to the adjustment signal; the dimming item being composed of the value and/or value range of at least one characteristics parameter of a pulse drive signal; converting the adjustment signal into the pulse drive signal indicated by the dimming item; controlling an adjustment switch by means of the pulse drive signal, so as to output a voltage including a chopped wave voltage corresponding to the dimming item, thereby transmitting adjustment information about the colour and/or brightness of the light source by means of the voltage including the chopped wave voltage. The method, apparatus and system can achieve the function of adjusting the colour and/or brightness of the light source.

Abstract: A method, an apparatus and a system for controlling a light source are disclosed. The method comprises: receiving a dimming command, determining the dimming item specified by the dimming command (201); determining the corresponding chopping type and/or the range of the chopping phase angle according to the dimming item (202); and controlling the regulation switch according to the determined chopping type and/or the range of the chopping phase angle in order to output the voltage containing a chopping voltage (203). The method, the apparatus and the system can achieve the regulation functions for the light source color and/or the luminance etc.