Abstract: A fuel cell includes a gas diffusion layer (GM) situated between a catalyst layer of the fuel cell and a flow field plate of the fuel cell. The GM has a first region and a second region along a thickness direction of the fuel cell. The first region is adjacent to the catalyst layer and has a first thermal conductivity. The second region is adjacent to the flow field plate and has a second thermal conductivity lower than the first thermal conductivity.

Abstract: The present disclosure provides a multifunctional LED lamp, which includes: a main lamp body; one or more LED light-emitting modules connected with the main lamp body; a face recognition module disposed on the main lamp body; an infrared sensing module disposed on the main lamp body; a photosensitive module disposed on the main lamp body; and a control module in communication connection with the face recognition module, the infrared sensing module, and the photosensitive module. The multifunctional LED lamp includes multiple working modes, and the control module controls working states of the face recognition module, the infrared sensing module, and the photosensitive module to switch the working modes. By installing different sensors, the LED lamp of the present disclosure integrates various functions such as lighting, security warning, entertainment, lighting, health, etc., and can realize different working modes by combining different sensors.

Abstract: The present disclosure proposes an LED lamp with omnidirectional heat dissipation, which includes an LED lamp housing including a power supply component inside, and a heat sink supporting an LED chip. The LED lamp housing and the heat sink are separated by a heat insulation member to block thermal influence between each other. The LED lamp of the present disclosure adds a heat insulation plate between the LED lamp housing for placing the power supply component and the heat sink, to block and weaken the mutual influence between the heat generated by the LED chip and the heat generated by the power supply component. The design improves the problem of excessively high ambient temperature inside the power supply cavity of the traditional LED lamps, effectively avoids damage to the power supply device due to long-term working in a high-temperature environment, and improves the service life of the LED lamp.

Abstract: The present disclosure provides a multifunctional LED lamp, which includes: a main lamp body; one or more LED light-emitting modules connected with the main lamp body; a face recognition module disposed on the main lamp body; an infrared sensing module disposed on the main lamp body; a photosensitive module disposed on the main lamp body; and a control module in communication connection with the face recognition module, the infrared sensing module, and the photosensitive module. The multifunctional LED lamp includes multiple working modes, and the control module controls working states of the face recognition module, the infrared sensing module, and the photosensitive module to switch the working modes. By installing different sensors, the LED lamp of the present disclosure integrates various functions such as lighting, security warning, entertainment, lighting, health, etc., and can realize different working modes by combining different sensors.

Abstract: The present disclosure proposes an LED lamp with omnidirectional heat dissipation, which includes an LED lamp housing including a power supply component inside, and a heat sink supporting an LED chip. The LED lamp housing and the heat sink are separated by a heat insulation member to block thermal influence between each other. The LED lamp of the present disclosure adds a heat insulation plate between the LED lamp housing for placing the power supply component and the heat sink, to block and weaken the mutual influence between the heat generated by the LED chip and the heat generated by the power supply component. The design improves the problem of excessively high ambient temperature inside the power supply cavity of the traditional LED lamps, effectively avoids damage to the power supply device due to long-term working in a high-temperature environment, and improves the service life of the LED lamp.

Abstract: A heat exchanger management system and a method of operating the heat exchanger management system. In one embodiment, the heat exchanger management system includes a memory and an electronic processor electrically connected to the memory and configured to operate one or more burners to transmit heat to a heat exchanger for a first period of time that deposits corrosive condensates on a passivation layer of the heat exchanger, deactivate the one or more burners for a second period of time, operate one or more blowers to move air across the heat exchanger at a temperature that evaporates the corrosive condensates on the passivation layer of the heat exchanger and increases an oxide thickness of the passivation layer on the heat exchanger, and reactivate the one or more burners after the second period of time.

Abstract: A heat exchanger management system and a method of operating the heat exchanger management system. In one embodiment, the heat exchanger management system includes a memory and an electronic processor electrically connected to the memory and configured to operate one or more burners to transmit heat to a heat exchanger for a first period of time that deposits corrosive condensates on a passivation layer of the heat exchanger, deactivate the one or more burners for a second period of time, operate one or more blowers to move air across the heat exchanger at a temperature that evaporates the corrosive condensates on the passivation layer of the heat exchanger and increases an oxide thickness of the passivation layer on the heat exchanger, and reactivate the one or more burners after the second period of time.

Abstract: This document discloses a solution for detecting human facial micro-expressions automatically by a video analysis system. Facial micro-expressions are involuntary expressions having a very short duration.

Abstract: This document discloses a solution for detecting human facial micro-expressions automatically by a video analysis system. Facial micro-expressions are involuntary expressions having a very short duration.