Abstract: The application relates to an anti-back-transfer intake structure of a rotating detonation combustion chamber including a Tesla valve communicating with the rotating detonation combustion chamber and arranged at an inlet of the rotating detonation combustion chamber. The Tesla valve includes a casing and a flow passage, the casing is coaxially connected with an outer wall of the rotating detonation combustion chamber, the flow passage is arranged in the casing, and the flow passage has an inlet end for introducing air, and an outlet end connected with an annular passage of the rotating detonation combustion chamber.

Abstract: Provided is a production method of a high-rate lithium iron phosphate positive electrode material comprising first, weighing an iron source and a lithium source in a molar ratio of 1:1-1:1.05, then weighing 5-15% of carbon source and 0-1% of metal ion doping agent based on the total mass of the iron source and lithium source, adding water to the above weighed materials, ball milling and sand grinding the obtained slurry, so that the D50 after the sand grinding is controlled to be 100-200 nm, then spraying the mixture to obtain a precursor, putting the precursor into a sintering furnace for sintering at 650-700° C. under the protection of nitrogen gas, cooling to obtain a sintered material, then pulverizing the sintered material, sieving the pulverized material and removing iron to obtain the lithium iron phosphate. The prepared lithium iron phosphate has a good rate capability and a good cycle stability.

Abstract: An antenna determination method, apparatus, a terminal device, an electronic device, and a storage medium are disclosed. In the embodiments of the present disclosure, on the premise of establishing communication connection with an opposite terminal device, quality of received signals of at least two antennas are compared, a channel corresponding to the signal with better signal quality is selected as a communication channel, and an antenna corresponding to the communication channel is determined for subsequent signal transmission and reception.

Abstract: The present invention relates to a getter material and a production method thereof. The method enables control of a sol-gel process so that a nanoparticle getter material with intrinsic nanoparticles in a size range from 10 nm to 1 ?m can be produced with accurate size control. The intrinsic nanoparticles of the getter material are composites of magnesium oxide and amorphous magnesium carbonate, substances that have properties that are highly interesting for getter applications. The composition ratio of magnesium oxide to magnesium carbonate may preferably be in the range from 5:95 to 50:50.

Abstract: Disclosed are a method and device for reducing mutual interference among equipment-sharing networks with adjacent bands. Quality of a first signal is monitored; and when the quality of the first signal is lower than a preset quality threshold, a working state of a second signal is adjusted to reduce mutual interference in a shared equipment, where the first signal and the second signal are in adjacent bands and interfere with each other. With this simple and easy method, impact of mutual interference can be reduced effectively, providing a simple universal method for handling existing mutual interference among equipment-sharing networks with adjacent bands.

Abstract: The disclosure provides an apparatus and method for suppressing interference caused by coexistence of World Interoperability for Microwave Access (WiMAX) and Wireless Fidelity (WiFi). When a user receives the RF signal from a wireless network by using the apparatus, a WiMAX filtering module filters out the WiFi RF signal received through a WiMAX antenna; the WiMAX RF signal is converted into the WiFi RF signal, and the out-of-band interference signal from the WiFi RF signal is filtered out by a WiFi filtering module, then the filtered WiFi RF signal is transmitted to the user through a WiFi antenna.

Abstract: The disclosure provides an apparatus and method for suppressing interference caused by coexistence of World Interoperability for Microwave Access (WiMAX) and Wireless Fidelity (WiFi). When a user receives the RF signal from a wireless network by using the apparatus, a WiMAX filtering module filters out the WiFi RF signal received through a WiMAX antenna; the WiMAX RF signal is converted into the WiFi RF signal, and the out-of-band interference signal from the WiFi RF signal is filtered out by a WiFi filtering module, then the filtered WiFi RF signal is transmitted to the user through a WiFi antenna.