Abstract: The present invention discloses a method for enhancing the activity of a photosensitizer by a magnetic field, in which the photosensitizer is placed in the magnetic field under light conditions, thus improving the cytotoxicity of the photosensitizer to tumor cells and increasing the activity of the photosensitizer, thereby further enhancing the apoptosis of cancer cells or an inhibitory effect on tumor tissue by using photodynamic treatment methods, which helps to improve an effect of photodynamic therapy.

Abstract: A solar cell and a photovoltaic module. The solar cell includes substrate, tunnel oxide layer, doped conductive layer, intrinsic polycrystalline silicon layer, enhanced conductive portion, and first electrodes. The tunnel oxide layer covers the first surface of the substrate. The doped conductive layer covers one side of the tunnel oxide layer away from the substrate. The intrinsic polycrystalline silicon layer is formed on one side of the doped conductive layer away from the tunnel oxide layer. The enhanced conductive portion covers one side of the intrinsic polycrystalline silicon layer away from the doped conductive layer, and is at least partially connected to the doped conductive layer. First electrodes are formed on one side of the enhanced conductive portion away from the intrinsic polycrystalline silicon layer, and at least part of each first electrode is located in the enhanced conductive portion to be electrically connected to the doped conductive layer.

Abstract: The present invention discloses a multi-channel impact-resistant intelligent-constant-deceleration hydraulic braking system, and relates to the field of safety braking control for mine hoist systems. A technical point of the braking system is that the braking system includes a braking circuit formed by a constant-deceleration hydraulic system, a constant-deceleration electrical closed-loop control system, and a detection and feedback apparatus. The constant-deceleration hydraulic system is provided with N+1 independent complete oil return channels, where N is a positive integer greater than or equal to 3. The oil return channels are disposed in parallel to form parallel independent braking circuits, that is, are “multi-channel” and do not have a “common output point”. The oil return channel includes a backup oil source, an electro-hydraulic signal conversion and amplification component, an operating mode switching apparatus, and an execution component that are sequentially connected.

Abstract: Provided is a solar cell, including: an N-type semiconductor substrate having a front surface and a rear surface opposite to the front surface; a boron diffusion layer arranged on the front surface of the N-type semiconductor substrate, a first passivation layer is provided on a surface of the boron diffusion layer, and a first electrode is provided passing through the first passivation layer to form an electrical connection with the N-type semiconductor substrate; and a phosphorus-doped polysilicon layer arranged on the rear surface of the N-type semiconductor substrate. A silicon oxide layer containing nitrogen and phosphorus is provided between the rear surface of the N-type semiconductor substrate and the phosphorus-doped polysilicon layer, a second passivation layer is provided on a surface of the phosphorus-doped polysilicon layer, and a second electrode is provided passing through the second passivation layer to form an electrical connection with the phosphorus-doped polysilicon layer.

Abstract: Provided is a solar cell, including: an N-type semiconductor substrate having a front surface and a rear surface opposite to the front surface; a boron diffusion layer arranged on the front surface of the N-type semiconductor substrate, a first passivation layer is provided on a surface of the boron diffusion layer, and a first electrode is provided passing through the first passivation layer to form an electrical connection with the N-type semiconductor substrate; and a phosphorus-doped polysilicon layer arranged on the rear surface of the N-type semiconductor substrate. A silicon oxide layer containing nitrogen and phosphorus is provided between the rear surface of the N-type semiconductor substrate and the phosphorus-doped polysilicon layer, a second passivation layer is provided on a surface of the phosphorus-doped polysilicon layer, and a second electrode is provided passing through the second passivation layer to form an electrical connection with the phosphorus-doped polysilicon layer.

Abstract: The present invention discloses a multi-channel impact-resistant intelligent-constant-deceleration hydraulic braking system, and relates to the field of safety braking control for mine hoist systems. A technical point of the braking system is that the braking system includes a braking circuit formed by a constant-deceleration hydraulic system, a constant-deceleration electrical closed-loop control system, and a detection and feedback apparatus. The constant-deceleration hydraulic system is provided with N+1 independent complete oil return channels, where N is a positive integer greater than or equal to 3. The oil return channels are disposed in parallel to form parallel independent braking circuits, that is, are “multi-channel” and do not have a “common output point”. The oil return channel includes a backup oil source, an electro-hydraulic signal conversion and amplification component, an operating mode switching apparatus, and an execution component that are sequentially connected.