Abstract: Disclosed are a preparation method for manganese-doped red phosphor, a device and a backlight module including the product. The method includes: 1) mixing A2BF6 polycrystalline particles with mill balls; 2) mixing A2BF6 powder obtained after ball-milling with a hydrofluoric acid for secondary crystallization; 3) filtering out solid particles in A2BF6 and hydrofluoric acid solution after the secondary crystallization; 4) performing ion exchange between A2BF6 particles and A2BF6; and 5) filtering out solid particles to obtain a filter cake, and performing drying treatment to obtain manganese-doped red phosphor.

Abstract: A method of processing an interference detected by a first microwave sensor is disclosed. The method comprising the steps of: receiving, by a second microwave sensor, from the first microwave sensor a message comprising a signal feature profile representing the interference detected by the first microwave sensor; matching, by the second microwave sensor, the signal feature profile comprised in the received message with a stored feature profile, the stored feature profile obtained by the second microwave sensor from its own received signal, and determining, by the second microwave sensor, that the interference detected by the first microwave sensor is caused by the second microwave sensor, if the signal feature profile matches the stored feature profile.

Abstract: A system for predicting a surge of a centrifugal refrigeration compressor including a signal capturing module for capturing at least two signals relevant to the centrifugal refrigeration compressor; a feature extracting module defining a window period for extracting data of the at least two signals, and defining at least two feature functions respectively acting on the data in the window period of the at least two signals; and, a feature analyzing and deducing module calculating a feature value for each of the signals to map a probability value of surge prediction for each of the signals, and concluding, based on the probability value of the surge prediction of each of the signals, a final probability value to determine whether or not the surge will occur to the centrifugal refrigeration compressor.

Abstract: A building heating or cooling system is disclosed that includes an air handling system having an air delivery flow path in fluid communication with a conditioned space in the building. The building heating or cooling system also includes an electrocaloric heating or cooling system that includes first and second electrocaloric modules. A first inlet receives air from the conditioned space or the air delivery flow path and directs it through the first or second electrocaloric module to a first outlet to the conditioned space or the air delivery flow path, and a second inlet that receives air from the conditioned space or the air delivery flow path and directs it through the first or second electrocaloric module to a second outlet to outside the conditioned space.

Abstract: The present disclosure discloses a building evacuation system and a building evacuation method. The evacuation method comprises: capturing image data of a region by a plurality of sensors to track a moving state of people in the region; detecting, in the moving state of the people being tracked, an object specified by at least one set abnormal mode, and matching the object with the abnormal mode; and generating an indication representing an abnormality of evacuation behavior based on the abnormal mode after being matched. The present disclosure can provide efficient evacuation.

Abstract: Disclosed are a preparation method for manganese-doped red phosphor, a device and a backlight module including the product. The method includes: 1) mixing A2BF6 polycrystalline particles with mill balls; 2) mixing A2BF6 powder obtained after ball-milling with a hydrofluoric acid for secondary crystallization; 3) filtering out solid particles in A2BF6 and hydrofluoric acid solution after the secondary crystallization; 4) performing ion exchange between A2BF6 particles and A2BF6; and 5) filtering out solid particles to obtain a filter cake, and performing drying treatment to obtain manganese-doped red phosphor.

Abstract: The present disclosure relates to a system and a method for prediction of chiller station performance. The method for prediction of chiller station performance includes: obtaining a temperature ECHWT of chilled water entering a first chiller in a chilled water circuit; obtaining a temperature LCHWT of chilled water leaving the first chiller in the chilled water circuit; obtaining a flow rate F1 of chilled water passing through the first chiller; obtaining a temperature LCWT of cooling water leaving the first chiller in a cooling water circuit; obtaining a power P1 of the first chiller; and training a first chiller performance model associated with variables COP, Q1e, LCHWT and LCWT based on obtained data COP, Q1e, LCHWT and LCWT; and predicting performance of the first chiller based on the first chiller performance model.

Abstract: The present disclosure discloses a building evacuation system and a building evacuation method. The evacuation method comprises: capturing image data of a region by a plurality of sensors to track a moving state of people in the region; detecting, in the moving state of the people being tracked, an object specified by at least one set abnormal mode, and matching the object with the abnormal mode; and generating an indication representing an abnormality of evacuation behavior based on the abnormal mode after being matched. The present disclosure can provide efficient evacuation.

Abstract: A system for predicting a surge of a centrifugal refrigeration compressor including a signal capturing module for capturing at least two signals relevant to the centrifugal refrigeration compressor; a feature extracting module defining a window period for extracting data of the at least two signals, and defining at least two feature functions respectively acting on the data in the window period of the at least two signals; and, a feature analyzing and deducing module calculating a feature value for each of the signals to map a probability value of surge prediction for each of the signals, and concluding, based on the probability value of the surge prediction of each of the signals, a final probability value to determine whether or not the surge will occur to the centrifugal refrigeration compressor.

Abstract: A building heating or cooling system is disclosed that includes an air handling system comprising an air delivery flow path (44) in fluid communication with a conditioned space (40) in the building. The building heating or cooling system also includes an electrocaloric heating or cooling system (10, 11) that includes first and second modules (12, 14). A first inlet receives air from the conditioned space (40) or the air delivery flow path (44) and directs it through the first or second module (12, 14) to a first outlet to the conditioned space (40) or the air delivery flow path (44), and a second inlet that receives air from conditioned space (40) or the air delivery flow path (44) and directs it through the first or second module (12,14) to a second outlet to outside the conditioned space (40).