Abstract: Embodiments of this application provide a heating control method and apparatus, an oil pump, and a heat exchange system. The method includes: in a cold state, injecting a heating current into an oil pump motor, where when the oil pump motor is not started, a torque that the heating current is capable of generating is zero, and after the oil pump motor is started, heating power of the heating current is greater than heating power of an energy-saving current, where the energy-saving current is a current capable of enabling a first motor to reach a target operating condition when oil temperature is greater than a preset temperature threshold.

Abstract: The present disclosure discloses a method for detecting a natural frequency of a blade by a single blade tip timing sensor. In the method, two segments of displacement data vectors are subjected to dot product to obtain a product data vector after multiplication of corresponding serial numbers, the product data vector is subjected to low-frequency filtering, the filtered product vector is subjected to Hilbert transform to obtain an instantaneous phase, the instantaneous phase is subjected to discrete Fourier transform, an absolute value of a natural frequency difference between blades is extracted from amplitude frequency data, blades on a bladed disk are subjected to permutation and combination to obtain absolute values of the natural frequency differences between all the blades, a sum of the absolute values of the natural frequency differences between each blade and other blades is calculated.

Abstract: A light-emitting device includes a substrate, a semiconductor epitaxial structure, and an etch stop layer. The substrate has a first surface and a second surface opposite to the first surface. The semiconductor epitaxial structure has a side surface that has a roughened structure formed with protrusions, and includes a first type semiconductor layer, an active layer, and a second type semiconductor layer disposed on the first surface of the substrate in such order. The etch stop layer is disposed on a surface of the semiconductor epitaxial structure away from the substrate for preventing an etching solution from etching the semiconductor epitaxial structure. A light-emitting package and a light-emitting apparatus are also provided. A method for manufacturing a light-emitting device is also provided.

Abstract: Provided is a tungsten electrode for molten salt electrolysis for rare earth metals preparation, including an open tungsten shell and a copper alloy body; wherein the copper alloy body is arranged inside the open tungsten shell; a tungsten buffer layer is provided between a side wall of the copper alloy body and the open tungsten shell; and a bottom of the copper alloy body is in contact with an inner bottom of the open tungsten shell.

Abstract: A method, a mobile terminal and a storage medium for transferring a WiFi address. The method includes acquiring a Bluetooth address of a target device; establishing a Bluetooth connection with the target device to obtain a Bluetooth connection status according to the Bluetooth address; transferring the WiFi address to the target device according to the Bluetooth connection status.

Abstract: The present application discloses a method for multi-node distributed training.

Abstract: A method, system and apparatus for configuring a computing resource of a service are provided, which relate to the field of resource configuration. The method includes that: an online learning algorithm that is used for recommending, to each service on a platform, a computing resource quota adapted to a service type of the service is preset (S1); when a new service is launched on the platform, a target computing resource quota adapted to the service type of the new service is recommended according to the online learning algorithm (S2); and initial configuration is performed for a computing resource of the new service according to the target computing resource quota (S3). By means of the method, the computing resource quota adapted to the service type of a newly launched service on the platform may be recommended to the newly launched service according to the online learning algorithm, so as to make computing resource configuration of the service more rational.

Abstract: A method and device for adjusting and processing ringtone is Provided, the method comprising: when a user equipment (UE) plays a ringtone, acquiring environmental audio data, the environmental audio data comprises the ringtone data played by the UE and the external environment noise data of the UE; analyzing the characteristic parameter of the ringtone played by the UE according to the acquired audio data; and adjusting the ringtone played by the UE according to the characteristic parameter. The disclosure solves the problem in the related art of how to automatically and accurately adjust the ringtone of a UE on the basis of different environments, thus achieving the effect of accurately adjusting the ringtone of the UE on the basis of different environments.

Abstract: A method and device for adjusting and processing ringtone is Provided, the method comprising: when a user equipment (UE) plays a ringtone, acquiring environmental audio data, the environmental audio data comprises the ringtone data played by the UE and the external environment noise data of the UE; analyzing the characteristic parameter of the ringtone played by the UE according to the acquired audio data; and adjusting the ringtone played by the UE according to the characteristic parameter. The disclosure solves the problem in the related art of how to automatically and accurately adjust the ringtone of a UE on the basis of different environments, thus achieving the effect of accurately adjusting the ringtone of the UE on the basis of different environments.

Abstract: A method and device for implementing stereo imaging. The method includes: capturing image data; segmenting objects in the captured image data to distinguish different objects; measuring distances between various objects and a camera; generating a scene depth information map according to the measured distances; converting to a stereo image by using the scene depth information map and the original captured image; outputting the stereo image. By means of the embodiment of the present invention, 3D image shooting may be implemented with a single camera.

Abstract: The present document discloses a video monitoring system and method, wherein, the system includes: a front-end data acquisition device, a front-end access device and a cloud system, wherein the front-end data acquisition device is configured to acquire a video image and transmit video image data to the front-end access device; the front-end access device is configured to transmit the video image data transmitted by the front-end data acquisition device to the cloud system; and the cloud system is configured to analyze the video image data and generate an alarm when a target in the video image acquired by the front-end data acquisition device behaves abnormally. The present document also discloses a cloud system. With the present document, full image analysis and processing can be performed on the monitored scenarios and false-positive and false-negative situations can be reduced.

Abstract: A burner includes a primary air-coal mixture duct coaxially extended through a secondary air wind box, a pulverized coal separator supported within the primary air-coal mixture duct, a secondary air duct including an inner secondary air duct and an outer secondary air duct coaxially formed around the primary air-coal mixture duct, a primary air-coal mixture conical outlet coupled with the outlet of the primary air-coal mixture duct, and inner secondary air and outer conical outlets coupled with the outlets of the inner secondary air and outer secondary air ducts respectively. The conical outlets are arranged to delay the mixing time of the primary air-coal mixture and secondary air flows through the primary air-coal mixture and secondary air ducts and to prolong the residence time in the center recirculation zone under the reduction ability so as to effectively reduce the formation of NOx.

Abstract: A method for a flame boiler with multi-stage combustion with multi-ejection, includes the steps of ejecting inner and outer secondary air flows with speed of 35-65 m/s to guide a fuel-rich pulverized coal flow with speed of 10-20 m/s into a lower chamber to provide first and second combustion stages, ejecting lower secondary air flows with speed of 35-65 m/s into the lower chamber to further guide the pulverized coal so as to provide a third combustion stage. The system includes a lower chamber, an upper chamber, a combustion chamber, fuel-rich pulverized coal flow nozzles, fuel-lean pulverized coal flow nozzles respectively provided at the front and rear boiler arches, and lower secondary air nozzles provided at the front and rear water cooled walls. The combustion of the pulverized coal flow with W-shaped flowing path within the boiler is adapted to reduce NOx emission and minimize the content of combustible substance in ash.

Abstract: The present invention relates to a load balancing method for a wireless local area network, which includes the following steps: initializing the load balancing group, self-organizing to select an online access point from the load balancing group as a load balancing agent center, each access point of the said balancing group managing and processing the load balance in accordance with the load level and balance optimizing policy, therefore implements the network load balance.

Abstract: The invention discloses a method for wireless terminal dynamically switching window in a wireless LAN environment. The wireless LAN comprises several access points and stations which establish wireless communication connections with the access points. The stations can switch the current access window by scanning. The method characterizes in that including following steps: giving the switching window an initial value through the stations; the stations judge if there is another access point of which the signal quality is greater than that of the current access window through scanning wireless channels; if so, further judge if the stations are in a frequently handoff status, if so, the handoff judging result is not allowed to switch window; if not, the handoff judging result is allowed to switch window. The present invention can adaptively adjust the stations' switch windows according to the stations' handoff status and frequently handoff status.

Abstract: The invention discloses a method for wireless terminal dynamically switching window in a wireless LAN environment. The wireless LAN comprises several access points and stations which establish wireless communication connections with the access points. The stations can switch the current access window by scanning. The method characterizes in that including following steps: giving the switching window an initial value through the stations; the stations judge if there is another access point of which the signal quality is greater than that of the current access window through scanning wireless channels; if so, further judge if the stations are in a frequently handoff status, if so, the handoff judging result is not allowed to switch window; if not, the handoff judging result is allowed to switch window. The present invention can adaptively adjust the stations' switch windows according to the stations' handoff status and frequently handoff status.

Abstract: A burner includes a primary air-coal mixture duct coaxially extended through a secondary air wind box, a pulverized coal separator supported within the primary air-coal mixture duct, a secondary air duct including an inner secondary air duct and an outer secondary air duct coaxially formed around the primary air-coal mixture duct, a primary air-coal mixture conical outlet coupled with the outlet of the primary air-coal mixture duct, and inner secondary air and outer conical outlets coupled with the outlets of the inner secondary air and outer secondary air ducts respectively. The conical outlets are arranged to delay the mixing time of the primary air-coal mixture and secondary air flows through the primary air-coal mixture and secondary air ducts and to prolong the residence time in the center recirculation zone under the reduction ability so as to effectively reduce the formation of NOx.

Abstract: The present invention relates to a load balancing method for a wireless local area network, which including the following steps: initializing the load balancing group, self-organizing to select an online access point from the load balancing group as a load balancing agent center, each access point of the said balancing group managing and processing the load balance in accordance with the load level and balance optimizing policy, therefore implements the network load balance.