Abstract: A power prediction method includes obtaining evaluation metrics of models in a model pool, where the evaluation metrics are used to indicate precision of the models; selecting, based on the evaluation metrics, a first model for a power prediction on a first electrical unit; and presenting a result of the power prediction of the first electrical unit using the first model.

Abstract: This application provides example methods and systems for supplying power to a device, and example related devices, and relates to the field of energy technologies. One example method includes predicting power load of the device in a first electricity price interval, where the first electricity price interval is a continuous time period in which electricity prices are the same. A power supply policy can then be selected for the device based on the power load of the device in the first electricity price interval, a quantity of stored electric charges of a power storage device at a first moment, and an electricity price at the first moment. Power can then be supplied to the device based on the selected power supply policy.

Abstract: A resource scheduling method is provided. The energy storage device pool includes at least one energy storage device. One example method includes: receiving a resource scheduling application request, determining a target energy storage device from the energy storage device pool based on the resource scheduling application request, and allocating an electric power resource to a power consumption device by using the target energy storage device.

Abstract: Provided is a method for determining a quality level of an iron and steel product. The method includes: obtaining a plurality of first parameters related to a quality of an iron and steel product; fusing the plurality of first parameters to obtain a comprehensive quality evaluation parameter; and determining a quality level of the iron and steel product based on the comprehensive quality evaluation parameter.

Abstract: The present invention concerns a method for producing a hydrogel comprising the following steps in succession: a first step (i) of providing at least one powder of an anionic polymer (A) and at least one chitosan powder (B) comprising amine functions (—NH2); a second step (ii) consisting in dry mixing at least the powders (A) and (B) from the first step in order to form a mixture of powders; a third step (iii) of suspending the mixture of powders obtained from the second step in an aqueous medium having a pH that can enable the anionic polymer (A) to be dissolved without dissolving the chitosan (B); a fourth step (iv) of adding an acid to the suspension obtained from the third step in order to form the hydrogel; or the third (iii) and fourth (iv) steps are replaced by a mixing fifth step (v), comprising mixing an acidified aqueous medium including at least one compound (C) comprising at least one unit of a hexose or a unit derived from a hexose, and/or at least one phosphate of said compound (C), with said

Abstract: Provided is a method for determining a quality level of an iron and steel product. The method includes: obtaining a plurality of first parameters related to a quality of an iron and steel product; fusing the plurality of first parameters to obtain a comprehensive quality evaluation parameter; and determining a quality level of the iron and steel product based on the comprehensive quality evaluation parameter.

Abstract: The present invention concerns a method for producing a hydrogel comprising the following steps in succession: a first step (i) of providing at least one powder of an anionic polymer (A) and at least one chitosan powder (B) comprising amine functions (—NH2); a second step (ii) consisting in dry mixing at least the powders (A) and (B) from the first step in order to form a mixture of powders; a third step (iii) of suspending the mixture of powders obtained from the second step in an aqueous medium having a pH that can enable the anionic polymer (A) to be dissolved without dissolving the chitosan (B); a fourth step (iv) of adding an acid to the suspension obtained from the third step in order to form the hydrogel; or the third (iii) and fourth (iv) steps are replaced by a mixing fifth step (v), comprising mixing an acidified aqueous medium including at least one compound (C) comprising at least one unit of a hexose or a unit derived from a hexose, and/or at least one phosphate of said compound (C), with said

Abstract: The present invention relates to an artificial root canal simulator based on hydroxyapatite, comprising a cavity representing a root canal, said artificial root canal simulator having a porosity of between 10% and 40% and a Vickers hardness of 50 to 200 HV, and to a method for the manufacture of an artificial root canal simulator according to the invention.

Abstract: A network audio/video communication system and a method thereof, which is used to ensure data security of a audio/video communication conducted through a network by verifying the user ID codes of a sending party and a receiving party and locking-in of the communication between the two parties. The method is realized through the following steps: activating the audio/video communication session; verifying the user ID codes of the sending party and the receiving party; determining the authorization level of the receiving party by the sending party, based on the user ID code of the receiving party; locking-in the communication connection between the sending party and the receiving party, and activating the communication connection between the sending party and the receiving party.

Abstract: A netphone and a communication method therefor are provided. The netphone comprises a main central processing unit, a video output module, an audio receiver, an audio output module, a ring generator, a command processing module, an input interface, a video capture module, a hang-up detection module, a storage module, a transceiver, and a network interface. The main central processing unit further comprises a multiplexer/demultiplexer, a video processing module, an audio processing module, a communication control module, and a system control module. The netphone may automatically establish a communication connection according to the user's command, and close the video communication at anytime, which is convenient for operation and protects personal privacy sufficiently.