Abstract: A method for detecting abnormal direct current voltage measurement in a modular multilevel converter high voltage direct current transmission system is provided. In the method, a valve group voltage at a detection pole is obtained, voltages at voltage measurement points at the detection pole are collected, and comparison and determination are performed based on the actual arrangement of the voltage measurement points, and then whether an abnormal measurement occurs at each of the voltage measurement points is determined.

Abstract: The present invention relates to a method for preparing, activating and regenerating a metal supported catalyst, comprising: treating a Ma-Mb-Mc metal supported catalyst at 10-700° C. by using an ammonia or nitrogen-containing organic matter, wherein the Ma metal is an active metal selected from one or more of a noble metal atom or a transition metal, the support is a common industrial porous catalyst, and the Ma metal is dispersed on the support in a state of single atomic site. According to the Md-Mb-Mc metal supported noble metal/zinc catalyst treated by the method of the present invention, the direct dehydrogenation conversion rate and selectivity of catalyzing light alkanes are remarkably improved; the method for preparing the catalyst is simple in process, the catalytic activity after regeneration is still kept, and the catalyst can be industrially produced on a large scale.

Abstract: The present invention relates to a preparation method for a noble metal single atom three-way catalyst, a catalyst obtained by using the method, and a use of the catalyst for purifying motor vehicle exhaust gas. In the present invention, a nitrogen-containing compound is used for treating a noble metal single atom catalyst precursor, avoiding the agglomeration of noble metal single atoms into nanocrystalline particles. The catalyst obtained by the preparation method of the present invention is resistant to high temperature, is not prone to agglomerate, and is resistant to poisoning, and the amount of usage of noble metals is reduced while the purification efficiency of the catalyst for motor vehicle exhaust gas is effectively improved.

Abstract: Disclosed are a method, an apparatus and a system for multi-device cooperation and medium. The method for multi-device cooperation is applied to any one of requesting devices, the method including: broadcasting a cooperation request; determining other requesting devices responding to the cooperation request and regarding the other requesting devices responding to the cooperation request as cooperative devices; and establishing a near field wireless communication connection with the cooperative device, and performing data interaction with the cooperative device based on the near field wireless communication.

Abstract: In a job management environment comprising a plurality of job systems and a scheduler for scheduling a job submitted to the job management environment to a job system for running, a processor, in a first job system, intercepts, from outside of a first container in the first job system, a first job from being sent to the scheduler. A processor, in the first job system, determines whether the first job is submitted from a container in the first job system. In response to a first determination that the first job is submitted from a container in the first job system, a processor, in the first job system, determines contexts of the first job, the contexts of the first job including a context related to the first container. A processor, in the first job system, sends the first job together with the contexts of the first job to the scheduler.

Abstract: Disclosed is a shearable lamp strip, comprising a light-emitting body, a first bus, a second bus, an outer sheath and a shearing indication area, wherein the light-emitting body comprises a substrate, and a first LED lamp bank and a second LED lamp bank which are sequentially arranged on the substrate along a length direction of the substrate, the first LED lamp bank is electrically connected with the first bus and the second bus respectively, the second LED lamp bank is electrically connected with the first bus and the second bus respectively, the outer sheath is wrapped on the light-emitting body, the first bus and the second bus, the shearing indication area is arranged on the outer sheath and located between the first LED lamp bank and the second LED lamp bank, the shearing indication area at least comprises a first shearing mark and a second shearing mark.

Abstract: Disclosed is a flexible light strip made of fluorescent material, including a substrate integrated with a plurality of flip-chips or LEDs arranged in parallel, wherein a phosphor outer layer is wrapped around the substrate, and a cross section of the phosphor outer layer is rectangular or arc-shaped, etc. In the present application, the substrate is wrapped with a flexible phosphor outer layer to achieve its own target color temperature, which simplifies the processing technology and brings the advantage of uniform light emission at the same time. The distance between the light sources, the number of arrangements, and the thickness of the wrapping fluorescent material are controlled, so as to achieve the purpose of uniform light emission. Compared with the existing conventional uniform light emission schemes, the processing technology links are reduced, and the cost is effectively saved, thus the invention has good popularization.

Abstract: Disclosed is a flexible light strip made of fluorescent material, including a substrate integrated with a plurality of flip-chips or LEDs arranged in parallel, wherein a phosphor outer layer is wrapped around the substrate, and a cross section of the phosphor outer layer is rectangular or arc-shaped, etc. In the present application, the substrate is wrapped with a flexible phosphor outer layer to achieve its own target color temperature, which simplifies the processing technology and brings the advantage of uniform light emission at the same time. The distance between the light sources, the number of arrangements, and the thickness of the wrapping fluorescent material are controlled, so as to achieve the purpose of uniform light emission. Compared with the existing conventional uniform light emission schemes, the processing technology links are reduced, and the cost is effectively saved, thus the invention has good popularization.

Abstract: Disclosed are a headboard and a bed, relating to the field of furniture. The headboard includes at least two panels and at least one folding connection member, wherein the folding connection member is disposed between two neighboring panels, a first side of the folding connection member being connected to one of the two neighboring panels, the second side of the folding connection member being connected to the other headboard of the two neighboring panels, thereby rendering the at least two panels foldable. With the at least two panels and the at least one folding connection member, the headboard disclosed may realize folding between respective panels so as to reduce package size, facilitate shipping and delivery, and reduce cost. Furthermore, the headboard disclosed is easy to disassemble and assemble, simple in structure, and convenient in use, with certain aesthetics and comfort.

Abstract: The present disclosure provides an AI voice interaction method, including: an earphone acquiring a user voice; a body receiving a digital voice signal sent by the earphone through a wireless communication, and sending the digital voice signal through mobile data or WiFi to a cloud server; the cloud server performing a voice recognition and semantic analysis on the digital voice signal; the body making a call or sending network data to the body according to the analysis result, to make the earphone perform a corresponding voice broadcast according to the network data. Accordingly, the present disclosure also provides an AI voice interaction device and system.

Abstract: Disclosed is an AI voice interaction device, including a main body and an earphone detachably connected with the main body. User's voice is picked up by a voice pick-up, digital voice signals are obtained through analog-to-digital conversion, and are further transmitted to a first communication module through an earphone communication module. A body processor implements communication connection with a cloud server, and transmits to the cloud server for voice recognition and semantic analysis. Afterwards, the cloud server implements the functions such as making phone calls, sending short messages through the cellular transceiver, or calls corresponding network data, and transmits the network data back to the wristband-type AI voice interaction device to perform corresponding voice broadcasting according to the network data. Further, a TWS earphone and a wristband-type AI voice interaction system are disclosed.

Abstract: A method for forecasting flood, the method including: calibrating the hydrological model by using an objective function that is a sum of squared difference between the observed streamflow and the corresponding forecasted streamflow at each lead time to obtain the optimized hydrological model; using the optimized hydrological model to forecast floods; and evaluating forecasting performance of the optimized hydrological model. The method improves the forecasting accuracy and provides forecasting results at various lead times.

Abstract: Disclosed is a portable intelligent voice interactive control device including a body and an earphone detachably connected with the body. The body includes a body casing and a rotating cover. An earphone slot is embedded on a surface of the body casing and configured to accommodate the earphone. The earphone is configured to be accommodated in the earphone slot and electrically connected with the body for charging. Horizontal rotation of the rotating cover allows the earphone to be taken out from a taking hole, and after the earphone is taken out, the body communicates with the body through wireless communication.

Abstract: The present application discloses a Bluetooth headset control method, a Bluetooth headset, and a computer readable storage medium. The Bluetooth headset comprises an attraction device, and two sub-headsets, when the Bluetooth headset is in the switch-off state, the two sub-headsets are attracted together through the attraction device. The method includes the following operations: switching on the Bluetooth headset, and connecting the Bluetooth headset with a corresponding target terminal through Bluetooth, when separation of the two sub-headsets is detected; receiving a terminal audio signal sent by the target terminal, and playing audio according to the terminal audio signal, when the connection between the Bluetooth headset and the target terminal is successfully established; executing corresponding headset control operation, when the two sub-headsets are detected to be attracted together through the attraction device.

Abstract: Disclosed is a portable intelligent voice interactive control device including a body and an earphone detachably connected with the body. The body includes a body casing and a rotating cover. An earphone slot is embedded on a surface of the body casing and configured to accommodate the earphone. The earphone is configured to be accommodated in the earphone slot and electrically connected with the body for charging. Horizontal rotation of the rotating cover allows the earphone to be taken out from a taking hole, and after the earphone is taken out, the body communicates with the body through wireless communication.

Abstract: Disclosed is an AI voice interaction device, including a main body and an earphone detachably connected with the main body. User's voice is picked up by a voice pick-up, digital voice signals are obtained through analog-to-digital conversion, and are further transmitted to a first communication module through an earphone communication module. A body processor implements communication connection with a cloud server, and transmits to the cloud server for voice recognition and semantic analysis. Afterwards, the cloud server implements the functions such as making phone calls, sending short messages through the cellular transceiver, or calls corresponding network data, and transmits the network data back to the wristband-type AI voice interaction device to perform corresponding voice broadcasting according to the network data. Further, a TWS earphone and a wristband-type AI voice interaction system are disclosed.

Abstract: The present disclosure provides an AI voice interaction method, including: an earphone acquiring a user voice; a body receiving a digital voice signal sent by the earphone through a wireless communication, and sending the digital voice signal through mobile data or WiFi to a cloud server; the cloud server performing a voice recognition and semantic analysis on the digital voice signal; the body making a call or sending network data to the body according to the analysis result, to make the earphone perform a corresponding voice broadcast according to the network data. Accordingly, the present disclosure also provides an AI voice interaction device and system.

Abstract: The present disclosure relates to the use of a cpcR regulator gene, which directs the expression of promoters of genes encoding Cry proteins, for reducing the sporulation of a strain of Bacillus thuringiensis, new recombinant strains of Bacillus thuringiensis and uses thereof as biopesticide.

Abstract: A method for forecasting flood, the method including: calibrating the hydrological model by using an objective function that is a sum of squared difference between the observed streamflow and the corresponding forecasted streamflow at each lead time to obtain the optimized hydrological model; using the optimized hydrological model to forecast floods; and evaluating forecasting performance of the optimized hydrological model. The method improves the forecasting accuracy and provides forecasting results at various lead times.

Abstract: The present document discloses a method for reducing a number of access times of a multimode terminal. The method includes the following steps: judging a network state of the terminal; acquiring signal intensity of a base station, calculating network delay time according to the signal intensity of the base station, and setting a timer according to the network delay time; and switching a data service when the timer has timed out. The present document further discloses an apparatus for reducing a number of access times of a multimode terminal.