Abstract: A method and an apparatus for detecting a parking place and a direction angle of the parking place, a device, a vehicle, and a computer readable storage medium are provided. The method includes: obtaining a to-be-detected image; identifying corner points of a parking space in the to-be-detected image and cropping the to-be-detected image based on the corner points of the parking space to obtain a candidate parking space image; and performing detection by using a pre-trained parking space detection model based on the candidate parking space image to obtain a parking space detection result, where the parking space detection result indicates whether the candidate parking space image represents a real parking space, and in a case that the candidate parking space image represents the real parking space, the parking space detection result further includes a direction angle of the parking space.

Abstract: A dual-chamber suction filtering device and filtering method, belonging to a surgical waste liquid collecting device, and solving the problem in the prior art that drainage fluid of an endoscope shaver system and a plasma surgical system is easily contaminated and cannot be separated in sections.

Abstract: Fluorescent materials and preparation methods thereof are provided. The fluorescent materials are represented by the general formula: M, Zn1-xAlxO and Y2O3: Re, wherein Re is at least one selected from Eu and Tb, M is at least one selected from Ag, Au, Pt and Pd in the form of nano-particle, and 0<×?0.05. The said methods include the following steps: step 1, preparing a colloid of Zn1-xAlxO; step 2, preparing a colloid of Y and Re containing the metal element M; step 3, mixing the colloid of Zn1-xAlxO with the colloid of Y and Re, aging and heating treatment to form the fluorescent materials. Compared to the Y2O3 fluorescent materials in the art the present fluorescent materials have higher luminescence efficiency, conductivity, long life and industrial applicability.

Abstract: A rare earth ion doped lanthanum gallate luminous material containing metal particles and preparation method thereof are provided. The chemical formula of the lanthanum gallate luminous material is La1-xGaO3:Lnx,My, wherein Ln is one or more of Tm3+, Tb3+, Eu3+ and Sm3+, M is one of Ag, Au, Pt and Pd, the value range of x is 0.001 to 0.1, and the value range of y is 0.00002 to 0.01. The luminous performance of the lanthanum gallate luminous material can be greatly improved under the same excitation condition and the wavelength of emission light doesn't change, due to the introduction of metal particles into the rare earth ion doped lanthanum gallate luminous material. The lanthanum gallate luminous material has excellent luminous performance, and its emitting photochromic purity and light emitting luminance after excitation are high, so it can be used widely in various kinds of light emitting devices.

Abstract: Fluorescent materials and preparation methods thereof are provided. The fluorescent materials are represented by the general formula: Y2O3: Re, M, Zn1-xAlxO, wherein Re is at least one selected from Eu and Tb, M is at least one selected from Ag, Au, Pt and Pd in the form of nano-particle, and 0<x?0.05. The said methods include the following steps: step 1, preparing a colloid of Zn1-xAlxO; step 2, preparing a colloid of Y and Re containing the metal element M; step 3, mixing the colloid of Zn1-xAlxO with the colloid of Y and Re, aging and heating treatment to form the fluorescent materials. Compared to the Y2O3 fluorescent materials in the art the present fluorescent materials have higher luminescence efficiency, conductivity, long life and industrial applicability.

Abstract: A rare earth ion doped lanthanum gallate luminous material containing metal particles and preparation method thereof are provided. The chemical formula of the lanthanum gallate luminous material is La1-xGaO3:Lnx,My, wherein Ln is one or more of Tm3+, Tb3+, Eu3+ and Sm3+, M is one of Ag, Au, Pt and Pd, the value range of x is 0.001 to 0.1, and the value range of y is 0.00002 to 0.01. The luminous performance of the lanthanum gallate luminous material can be greatly improved under the same excitation condition and the wavelength of emission light doesn't change, due to the introduction of metal particles into the rare earth ion doped lanthanum gallate luminous material. The lanthanum gallate luminous material has excellent luminous performance, and its emitting photochromic purity and light emitting luminance after excitation are high, so it can be used widely in various kinds of light emitting devices.