Beijing Didi Infinity Technology and Development Co., Ltd.

Chinese Academy of Inspection and Quarantine

Beijing Xiaomi Mobile Software Co., Ltd.

Beijing Xinwei Telecom Technology Inc.

Telefonaktiebolaget Lm Ericsson (publ)

Datang Mobile Communications Equipment Co., Ltd.

Qiang Ma

Lu Qian

Pengcheng Wang

Yongqing Mu

Chuanlan Li

Zhaozhi Sun

Quansheng Guo

Hang Li

Hui Zhou

Yongquan Qiang

Li Xu

Jiandong Wang

Guanghan Xu

Wentao Li

Hua Bai

Zhicong Han

Qian Lu

Xixi Yu

Qihua Huang

Xiangu Xiao

Xiangyu Guo

Weiyi Cao

Xiangui Xiao

The present invention discloses a method for authentication of animal species origin of leather products, which includes the following steps: Step 1: Model establishment: (1) Collect leather samples from different animal species origins, set mass spectrometric parameters, cut the surface of leather samples using a preheated electric soldering iron, and detect the resulting sample ions using the mass spectrometer; (2) Create a multivariate statistical model based on principal component analysis and linear discriminant analysis of rapid evaporative ionization mass spectrometric data and evaluate the model with cross-validation tests; Step 2: Analysis of real leather samples: detect and authenticate the identity of real leather samples based on the multivariate statistical model. The authentication method disclosed in present invention is a rapid analytical method that requires no sample pretreatment and can identify the animal species origin of leather products rapidly and accurately.

Method for authentication of animal species origin of leather products

The present invention discloses a method for rapid on-site detection of fentanyl analogs using a miniature mass spectrometer, comprising the following steps: (1) selecting a spotting plate; (2) loading a sample: depositing the sample and 3-nitrobenzonitrile solution in acetonitrile on the spotting plate to form a crystalline mixture; (3) carrying out analysis and detection: setting the parameters of the miniature mass spectrometer, placing the crystalline mixture on the spotting plate in close proximity to the inlet of the miniature mass spectrometer, and facilitating the ionization of the crystalline mixture for the analysis and detection of fentanyl analogs. The method for rapid on-site detection of fentanyl analogs using a miniature mass spectrometer provided by the present invention requires no extraction solvent, no voltage, no laser, no gas, and the method is simple, rapid, and suitable for rapid on-site detection of fentanyl analogs.

Method for rapid on-site detection of fentanyl analogs using a miniature mass spectrometer

The invention discloses a detection method based on supercritical fluid chromatography (SFC) and post-column dicationic ionic liquid (DIL) charge complexation, which includes the following steps: (1) The supramolecular solvent (SUPRAS) was prepared by mixing heptanol, tetrahydrofuran, and water; (2) Sample pretreatment: the SUPRAS was used to extract the sample for subsequent analysis; (3) Analysis of perfluorinated compounds (PFCs) using SFC separation, post-column DIL-based charge complexation, and electrospray ionization-mass spectrometry (ESI-MS). The invention established a novel analytical method for the detection of PFCs in textiles incorporating post-chromatographic DIL-based charge complexation and SFC coupled with ESI-MS. The DIL reagent formed positively charged complexes with anionic analytes during the ESI process, facilitating MS detection in the positive ion mode with enhanced detection sensitivity.

Detection method based on supercritical fluid chromatography and post-column ionic liquid charge complexation

Embodiments of the disclosure provide a method for configuring indication information for transportation services. The method includes receiving a first transportation request which includes a first passenger pick-up point located in a preset geographical area, and the first transportation request matches a first vehicle. The method also includes receiving a second transportation request which includes a second passenger pick-up point located in the preset geographical area, and the second transportation request matches a second vehicle. The method further includes generating first indication information for the first transportation request and second indication information for the second transportation request based on a time difference between a first estimated time for the first vehicle to arrive in the preset geographical area and a second estimated time for the second vehicle to arrive in the preset geographical area.

Configuration method and system of indication device for driver-passenger matching

The present disclosure relates to a wireless charging receiver, a charging system, and a terminal. The wireless charging receiver includes: a receiving coil, configured to couple an alternating magnetic field of a transmitting coil of a wireless charging transmitter, to obtain an AC power supply; a receiving chip, having an input coupled to the receiving coil and an output coupled to an input of a switched-capacitor conversion chip, and configured to convert the AC power supply into a first DC power supply; and the switched-capacitor conversion chip, having an output coupled to a battery, and configured to output a second DC power supply based on the first DC power supply, and charge the battery based on the second DC power supply.

Wireless charging receiver, charging system and terminal

A method, an electronic device and a storage medium are provided for improving a wireless charging efficiency. The method includes: a current capacitance value of a resonant capacitor in a receiver of the electronic device is adjusted to a target capacitance value, where a wireless charging efficiency corresponding to the target capacitance value is superior to a wireless charging efficiency corresponding to the current capacitance value.

Method of improving wireless charging efficiency, electronic device and storage medium

Embodiments of the disclosure provide a method for configuring indication devices in transportation services. The method includes receiving a first transportation request which includes a first passenger pick-up point located in a preset geographical area, and the first transportation request matches a first vehicle associated with a first indication device. The method also includes receiving a second transportation request which includes a second passenger pick-up point located in the preset geographical area, and the second transportation request matches a second vehicle associated with a second indication device. The method further includes determining a time difference between a first estimated time for the first vehicle to arrive in the preset geographical area and a second estimated time for the second vehicle to arrive in the preset geographical area, and sending first indication information to the first indication device and second indication information to the second indication device according to the time difference.

Embodiments of the disclosure provide a method for configuring indication devices in transportation services. The method includes receiving a plurality of transportation requests including passenger pick-up points located in a preset geographical area. The method further includes identifying a first transportation request matching a first vehicle and a second transportation request matching a second vehicle, where the first vehicle and the second vehicle are detected to be located in the preset geographical area. The method also includes determining that first indication information assigned with the first transportation request shares an attribute with second indication information assigned with the second transportation request. The method additionally includes adjusting the first indication information so that the first indication information no longer shares the attribute with the second indication information.

The present disclosure provides a method and system for scheduling group resources during trunking communication. The method includes: classifying base stations connected to a trunking switch center into at least one co frequency base station set and marking a base station that cannot be classified into the at least one co frequency base station set as a different frequency base station according to central frequencies and home regions of the base stations; step when a group call is established, allocating the same trunking shared channel and designating the same packet delivery time to base stations in one co frequency base station set, and notifying each base station in the co frequency base station set of the trunking shared channel and the packet delivery time; and step the base stations in the co frequency base station set starting to send trunking packets on the trunking shared channel at the packet delivery time.

Method and system for scheduling group resources during trunking communication

The present application discloses a system and a method for clock synchronization of base stations. In the system for clock synchronization of base stations, a Global Positioning System (GPS) receiver on a main control board of a base station is connected to a GPS antenna feeder; the GPS receiver connected to the GPS antenna feeder is connected to a Phase-Locked Loop (PLL) on the present main control board and a PLL on other main control board; the main control boards are connected through a judgment line.

Clock synchronization system and method for base station

Embodiments of the present invention relate to method and apparatus for load balancing in scheduling traffic flows in networks. In one aspect, there is provided a method of load balancing for use in scheduling a traffic flow, comprising: selecting, based on a mapping entry, a first processing engine (PE) from a plurality of PEs as a target PE for a packet of the traffic flow, the mapping entry indicating an association between the packet and the first PE; determining whether load of the target PE exceeds a threshold; and in response to determining that the threshold is exceeded, updating the selection of the target PE based on a scheduling status of the traffic flow, the scheduling status indicating a dispatch of a previous packet of the traffic flow, such that the packet is dispatched to the same target PE as the previous packet. Corresponding apparatus is also provided.

Method and apparatus for load balancing

Embodiments of the present invention provide a method and device for transmitting voice in a wireless system. The method includes: identifying, by a transmitter, each original voice encoding packet needed to be sent out with a number indicating playback order, and performing channel encoding on each identified original voice encoding packet to construct a voice session packet; establishing a voice session or voice data mixed session between the transmitter and a receiver; allocating a channel dynamically for the voice session or the voice data mixed session; sending, by the transmitter, newly-arrived voice session packets, delayed voice session packets, voice session packets needed to be re-transmitted, data session packets and control command packets according to pre-configured priority; receiving and detecting, by the receiver, the voice session packets, sending an NACK packet comprising number of a lost voice session packet to the transmitter to inform the transmitter to re-transmit the voice session packet, if it is confirmed that the voice session packet is lost; and putting voice session packets properly received into a jitter buffer controller at the receiver if the receiver is a terminal. In embodiments of the present invention, spectral efficiency and reliability of real-time voice services in a wireless multi-service transmission system may be improved while satisfying the Quality of Service (QoS) requirements of real-time services, such as voice service.

Growing community of inventors

Beijing, China

Qiang Ma