Abstract: A communication method and apparatus, a device, a storage medium and a program product, where the communication method includes: monitoring a paging indication physical downlink control channel (PDCCH), and acquiring indication information; determining, based on the indication information, a state of at least one reference signal, or determining, based on the indication information, whether to monitor a paging PDCCH, where the state is an available state or an unavailable state.

Abstract: The embodiments of the present disclosure provide a system for calculating a regional crowd movement and a method thereof. The system is applied to a target monitoring environment, a plurality of key travel nodes are planned in the target monitoring environment, and the system includes radio frequency labels deployed on pedestrians, calculation apparatuses deployed at the key travel nodes and a plurality of directional antennas. The directional antenna is configured to, when driven by the calculation apparatus, send a read-write signal to the radio frequency label in a coverage region; the directional antenna is further configured to forward a radio frequency signal simultaneously reflected by the radio frequency label at the time of obtaining the read-write signal to the calculation apparatus; the calculation apparatus is configured to, based on a tempo-spatial distribution circumstance of the radio frequency signals in the region.

Abstract: A method for decolorizing and deproteinizing brown algae polysaccharides belongs to the field of deep processing of brown algae. The method combines ultraviolet (UV) with hydrogen peroxide (H2O2), including the following steps: extracting dried and pulverized brown algae by hot water to obtain brown algae polysaccharide, dissolving the brown algae polysaccharide in an aqueous solution containing H2O2 and irradiating under ultraviolet light, wherein the mass concentration of the brown algae polysaccharide is 2.5-10.0 mg/mL, the concentration of the H2O2 is 25-150 mmol/L, and the UV irradiation time is 1.0-2.0 h, so as to deproteinize and decolorize the brown algae. The invention does not use acids, bases and organic solvents, which is green with no pollution, simple in operation, safe, economical and time-saving.

Abstract: A method of reshaping a severely stenosed aortic valve having leaflets with bicuspid malformation and severe calcification. The method includes delivering a balloon with an expandable distal end to the aortic valve, expanding the balloon so that the distal end of the balloon is expanded to push the leaflets upward from bottom of the aortic valve to reshape the leaflets, and forming a space compliant to a self-expandable interventional valve for release, thereby facilitating the following TAVR procedure, reducing the adverse consequences of the TAVR procedure, and improving the surgical stability and the surgical prognosis.

Abstract: A method for decolorizing and deproteinizing brown algae polysaccharides belongs to the field of deep processing of brown algae. The method combines ultraviolet (UV) with hydrogen peroxide (H2O2), including the following steps: extracting dried and pulverized brown algae by hot water to obtain brown algae polysaccharide, dissolving the brown algae polysaccharide in an aqueous solution containing H2O2 and irradiating under ultraviolet light, wherein the mass concentration of the brown algae polysaccharide is 2.5-10.0 mg/mL, the concentration of the H2O2 is 25-150 mmol/L, and the UV irradiation time is 1.0-2.0 h, so as to deproteinize and decolorize the brown algae. The invention does not use acids, bases and organic solvents, which is green with no pollution, simple in operation, safe, economical and time-saving.