Abstract: Disclosed is a method for determining 224Ra in a sediment by using a pulse ionization chamber emanometer, which belongs to the technical field of analysis and measurement. A pulse ionization chamber emanometer (PIC), a new emanometer, is used. Based on the half-life characteristics of different radon isotopes, one can separate the 220Rn activity from the total counts by dual counting. The resulting 220Rn measurement then can be used to determine the 224Ra activity in sediment according to the principle of secular radioactive equilibrium.

Abstract: The disclosure discloses a mobile terminal and a rapid charging method, where the mobile terminal includes a microprocessor configured to detect voltage of a battery core thereof upon detecting that the USB interface is connected with the DC-charging power source adaptor, if the voltage of the battery core is in a range [S1, S2] delimited by preset DC-charging thresholds, to calculate a target charging voltage value Vout from the voltage of the battery core, the maximum terminal voltage supported by the battery as well as at least one of a resistance value on a charging line, a resistance value on a circuit board of the mobile terminal, an inner resistance of the battery, and to send the target charging voltage value Vout to the DC-charging power source adaptor to control the DC-charging power source adaptor to output charging voltage to DC-charge the battery.

Abstract: The application discloses a rapid charging method and a mobile terminal, which are proposed for a power source adaptor outputting dynamically adjustable voltage, where voltage of a battery core is divided into several intervals, and further in a segmented constant-current-like charging mode, a volt value of charging voltage output by the power source adaptor is adjusted dynamically according to an interval in which the core voltage of the battery in the mobile terminal while the battery is being charged lies, and the battery is DC-charged directly using the charging voltage output by the power source adaptor.

Abstract: The application disclose a mobile terminal, a method for charging by a power source adapter for charging directly and a method for charging a mobile terminal, where firstly the power adaptor for charging directly is configured to communicate wirelessly with the mobile terminal, and then a strategy to identity the type of charging is designed in the mobile terminal dependent upon differently configured communication pins of a different charging device, so that the mobile terminal identifies automatically the type of the external device. Also a specialized rapid charging mode is designed for the power adaptor for charging directly, the battery of the mobile terminal being charged routinely is charged directly at large current by charging voltage output by the power adaptor for charging directly, and the volt value of the charging voltage is adjusted dynamically according to the varying voltage of the battery.

Abstract: This disclosure provides a mobile terminal, a DC-charging power source adaptor, and a charging method, where firstly the DC-charging power source adaptor is configured to communicate with the mobile terminal in a UART communication mode, and then a strategy to identity the type of charging is designed in the mobile terminal dependent upon configuration of communication pins of a different charging device, so that the mobile terminal identifies automatically the type of the external device. Also a specialized rapid charging mode is designed for the DC-charging power source adaptor, the battery of the mobile terminal being charged is DC-charged at large current by charging voltage output by the DC-charging power source adaptor, and the volt value of the charging voltage is adjusted dynamically according to the varying voltage of the battery.

Abstract: This disclosure provides a mobile terminal, a DC-charging power source adaptor, and a rapid charging method, which are proposed for a power source adaptor outputting dynamically adjustable voltage, where core voltage of a battery is divided into several intervals, and further in a segmented constant-current-like charging mode, a volt value of charging voltage output by the power source adaptor is adjusted dynamically according to the interval in which the core voltage of the battery in the mobile terminal while the battery is being charged lies, and the battery is DC-charged directly using the charging voltage output by the power source adaptor.

Abstract: The application disclose a mobile terminal, a method for charging by a power source adapter for charging directly and a method for charging a mobile terminal, where firstly the power adaptor for charging directly is configured to communicate wirelessly with the mobile terminal, and then a strategy to identity the type of charging is designed in the mobile terminal dependent upon differently configured communication pins of a different charging device, so that the mobile terminal identifies automatically the type of the external device. Also a specialized rapid charging mode is designed for the power adaptor for charging directly, the battery of the mobile terminal being charged routinely is charged directly at large current by charging voltage output by the power adaptor for charging directly, and the volt value of the charging voltage is adjusted dynamically according to the varying voltage of the battery.

Abstract: This disclosure provides a mobile terminal, a DC-charging power source adaptor, and a charging method, where firstly the DC-charging power source adaptor is configured to communicate with the mobile terminal in a UART communication mode, and then a strategy to identity the type of charging is designed in the mobile terminal dependent upon configuration of communication pins of a different charging device, so that the mobile terminal identifies automatically the type of the external device. Also a specialized rapid charging mode is designed for the DC-charging power source adaptor, the battery of the mobile terminal being charged is DC-charged at large current by charging voltage output by the DC-charging power source adaptor, and the volt value of the charging voltage is adjusted dynamically according to the varying voltage of the battery.

Abstract: The application discloses a rapid charging method and a mobile terminal, which are proposed for a power source adaptor outputting dynamically adjustable voltage, where voltage of a battery core is divided into several intervals, and further in a segmented constant-current-like charging mode, a volt value of charging voltage output by the power source adaptor is adjusted dynamically according to an interval in which the core voltage of the battery in the mobile terminal while the battery is being charged lies, and the battery is DC-charged directly using the charging voltage output by the power source adaptor.

Abstract: This disclosure provides a mobile terminal, a DC-charging power source adaptor, and a rapid charging method, which are proposed for a power source adaptor outputting dynamically adjustable voltage, where core voltage of a battery is divided into several intervals, and further in a segmented constant-current-like charging mode, a volt value of charging voltage output by the power source adaptor is adjusted dynamically according to the interval in which the core voltage of the battery in the mobile terminal while the battery is being charged lies, and the battery is DC-charged directly using the charging voltage output by the power source adaptor.

Abstract: The disclosure discloses a mobile terminal and a rapid charging method, where the mobile terminal includes a microprocessor configured to detect voltage of a battery core thereof upon detecting that the USB interface is connected with the DC-charging power source adaptor, if the voltage of the battery core is in a range [S1, S2] delimited by preset DC-charging thresholds, to calculate a target charging voltage value Vout from the voltage of the battery core, the maximum terminal voltage supported by the battery as well as at least one of a resistance value on a charging line, a resistance value on a circuit board of the mobile terminal, an inner resistance of the battery, and to send the target charging voltage value Vout to the DC-charging power source adaptor to control the DC-charging power source adaptor to output charging voltage to DC-charge the battery.