Abstract: Provided are a pharmaceutical composition and use thereof. The pharmaceutical composition includes a component A and a component B. The component A includes polyphenol having 6 to 14 carbon atoms and/or a substance that is metabolizable into polyphenol having 6 to 14 carbon atoms in the human body. The component B includes any one of citric acid, citrate, a citric acid derivative, or a citric acid derivative salt, or a combination of at least two thereof. The pharmaceutical composition not only has a synergistic enhancement effect in inhibiting the growth of calcium oxalate crystals, but also can be used for a synergistic treatment of kidney stones.

Abstract: The disclosure provides a control method and apparatus for an energy storage heat exchange electric water heater. The energy storage heat exchange electric water heater includes a water tank, an energy storage electric heater, a heat exchanger, a flow-through electric heater and a thermostatic valve, the flow-through electric heater and the thermostatic valve are controlled to be in an activated operating state at the same time, thus the thermostatic valve is able to mix cold water with hot water outputted from the heat exchanger and then allow mixed water to flow through the flow-through electric heater for being heated. The flow-through electric heater is able to directly heat the mixed water outputted from the thermostatic valve, without heating cold water in the thermostatic valve. Therefore, the temperature of water outputted after the flow-through electric heater heats the mixed water is able to reach the second preset temperature value quickly.

Abstract: An information processing method includes: preloading M pieces of multimedia information after a user screen corresponding to an information item specified in a first application is accessed; arranging the M pieces of loaded multimedia information in a specified storage area in sequence; extracting, after playing of an ith piece of multimedia information ends, an (i+1)th piece of multimedia information from the specified storage area in sequence, and switching to play the (i+1)th piece of multimedia information; generating an interaction screen by means of simulation after playing of the (i+1)th piece of multimedia information ends, the interaction screen comprising a touch interaction object for enabling an (i+2)th piece of multimedia information; responding to a first operation performed on the touch interaction object; extracting the (i+2)th piece of multimedia information from the specified storage area in sequence; and switching to play the (i+2)th piece of multimedia information.

Abstract: An information processing method includes: preloading M pieces of multimedia information after a user screen corresponding to an information item specified in a first application is accessed ; arranging the M pieces of loaded multimedia information in a specified storage area in sequence; extracting, after playing of an ith piece of multimedia information ends, an (i+1)th piece of multimedia information from the specified storage area in sequence, and switching to play the (i+1)th piece of multimedia information; generating an interaction screen by means of simulation after playing of the (i+1)th piece of multimedia information ends, the interaction screen comprising a touch interaction object for enabling an (i+2)th piece of multimedia information; responding to a first operation performed on the touch interaction object; extracting the (i+2)th piece of multimedia information from the specified storage area in sequence; and switching to play the (i+2)th piece of multimedia information.

Abstract: A DC-DC converter adopted in a mobile device, for converting a DC input voltage to a DC output voltage is provided. The converter comprises an input circuit, a control circuit, and a switch. The input circuit is connected in series with a line for supplying the DC input voltage and includes a parallel connection of a first capacitor and a snubber circuit. The control circuit is provided for producing a control signal. The switch, connected with the input circuit, is adapted to turn ON or OFF in accordance with the control signal, so as to produce the DC output voltage.

Abstract: A DC-DC converter adopted in a mobile device, for converting a DC input voltage to a DC output voltage is provided. The converter comprises an input circuit, a control circuit, and a switch. The input circuit is connected in series with a line for supplying the DC input voltage and includes a parallel connection of a first capacitor and a snubber circuit. The control circuit is provided for producing a control signal. The switch, connected with the input circuit, is adapted to turn ON or OFF in accordance with the control signal, so as to produce the DC output voltage.