Abstract: Fluorided silica-coated alumina activator-supports have a bulk density from 0.15 to 0.37 g/mL, a total pore volume from 0.85 to 2 mL/g, a BET surface area from 200 to 500 m2/g, an average pore diameter from 10 to 25 nm, and from 80 to 99% of pore volume in pores with diameters of greater than 6 nm. Methods of making the fluorided silica-coated alumina activator-supports and using the fluorided silica-coated aluminas in catalyst compositions and olefin polymerization processes also are described. Representative ethylene-based polymers produced using the compositions and processes have a melt index of 0.1 to 10 g/10 min and a density of 0.91 to 0.96 g/cm3, and contain from 70 to 270 ppm solid oxide and from 2 to 18 ppm fluorine.

Abstract: A prediction-type intelligent vehicle decision control method and apparatus, a vehicle, and a storage medium are provided.

Abstract: The present disclosure relates to a micron silver particle-reinforced 316L stainless steel matrix composite, including a 316L stainless steel matrix and silver particles uniformly distributed in the 316L stainless steel matrix. The silver particles have a weight 1% to 5% of the total weight of the composite; and the composite has a density of 7.9 g/cm3 to 8.2 g/cm3 and a relative density of more than 98%. The composite is prepared by the following method: mixing raw materials of a spherical silver powder and a spherical 316L stainless steel powder; subjecting a resulting mixture to mechanical ball milling to obtain a mixed powder; sieving the mixed powder and adding a resulting powder to a powder cylinder of an SLM forming machine; and charging an inert protective gas for printing to obtain the composite.

Abstract: A model file management method includes that a terminal device receives a storage address of a target model file package from a server and the terminal device obtains the target model file package based on the storage address of the target model file package, where the target model file package is based on a parameter of a model file package locally stored in the terminal device and a parameter of a model file package managed by the server. In an artificial intelligence (AI) field, an application may implement a specific function by using an AI model file. An application is decoupled from an AI model file such that the terminal device performs centralized management on a general model file.

Abstract: Fluorided silica-coated alumina activator-supports have a bulk density from 0.15 to g/mL, a total pore volume from 0.85 to 2 mL/g, a BET surface area from 200 to 500 m2/g, an average pore diameter from 10 to 25 nm, and from 80 to 99% of pore volume in pores with diameters of greater than 6 nm. Methods of making the fluorided silica-coated alumina activator-supports and using the fluorided silica-coated aluminas in catalyst compositions and olefin polymerization processes also are described. Representative ethylene-based polymers produced using the compositions and processes have a melt index of 0.1 to 10 g/10 min and a density of 0.91 to 0.96 g/cm3, and contain from 70 to 270 ppm solid oxide and from 2 to 18 ppm fluorine.

Abstract: A method for calibrating a driving risk identification model includes: S1. establishing a vehicle platform by installing an information acquisition device on a test vehicle; S2. acquiring synchronized test data related to the test vehicle and driving scenarios; S3. extracting moments when the drivers start to press the accelerator pedal, start to release the accelerator pedal, start to press the brake pedal in the driving scenarios, and start to release the brake pedal, so as to define risk level values respectively corresponding to the moments; S4. obtaining a risk identification curve of the drivers in different driving scenarios, wherein the risk identification curve represents the drivers' judgment of the risk level over time; S5. using the risk identification curve to calibrate the driving risk identification model.

Abstract: A Bluetooth audio broadcasting system includes: an audio broadcasting device, a first Bluetooth member device, and a second Bluetooth member device. The audio broadcasting device broadcasts BLE audio packets and transmits a predetermined volume instruction to the first Bluetooth member device and the second Bluetooth member device before broadcasting the BLE audio packets. The first Bluetooth member device parses the BLE audio packets to acquire a predetermined audio data, controls a first audio playback circuit to playback the predetermined audio data, and configures an audio volume of the first audio playback circuit in advance according to the predetermined volume instruction. The second Bluetooth member device parses the BLE audio packets to acquire the predetermined audio data, controls a second audio playback circuit to playback the predetermined audio data, and configures an audio volume of the second audio playback circuit in advance according to the predetermined volume instruction.

Abstract: A Bluetooth audio broadcasting system includes: an audio broadcasting device, a first Bluetooth member device, and a second Bluetooth member device. The audio broadcasting device broadcasts BLE audio packets and transmits a volume adjusting instruction to the first Bluetooth member device and the second Bluetooth member device after they receive the BLE audio packets. The first Bluetooth member device parses the BLE audio packets to acquire a predetermined audio data, controls a first audio playback circuit to playback the predetermined audio data, and adjusts an audio volume of the first audio playback circuit according to the volume adjusting instruction. The second Bluetooth member device parses the BLE audio packets to acquire the predetermined audio data, controls a second audio playback circuit to playback the predetermined audio data, and adjusts an audio volume of the second audio playback circuit according to the volume adjusting instruction.

Abstract: The present disclosure discloses a method for isolating and purifying Lactobacillus rhamnosus ZFM216 bacteriocin, the method including the following steps: preparing L. rhamnosus ZFM216 fermentation supernatant; treating the fermentation supernatant with macroporous adsorption resin method to obtain a crude protein extract; isolating the crude protein extract by gel chromatography to obtain a preliminary purified protein solution; and then performing purification by reversed-phase high performance liquid chromatography (HPLC) to obtain an L. rhamnosus ZFM216 bacteriocin solution. The present disclosure further provides use of the L. rhamnosus bacteriocin in anti-Staphylococcus aureus.

Abstract: The present disclosure discloses Lactobacillus sakei ZFM225, with a preservation number of CCTCC NO:M 2016669. The present disclosure further discloses an isolation and purification method of an Lactobacillus sakei ZFM225 bacteriocin, including the steps of: precipitating fermentation supernatant of the Lactobacillus sakei ZFM225 by an ammonium sulfate precipitation method to obtain crude protein; desalting the crude protein to obtain crude protein extract; isolating the crude protein extract by cation exchange chromatography, performing elution with a gradient eluent containing 0.5 M to 1.0 M NaCl, and desalting the obtained eluate to obtain a preliminary protein purified solution; and then purifying the preliminary protein purified solution by reversed-phase high-performance liquid chromatography to obtain the Lactobacillus sakei ZFM225 bacteriocin. The Lactobacillus sakei ZFM225 bacteriocin has antibacterial activity on both gram-positive bacteria and gram-negative bacteria.

Abstract: A Bluetooth audio broadcasting system includes: an audio broadcasting device, a first Bluetooth member device, and a second Bluetooth member device. The audio broadcasting device broadcasts BLE audio packets. After the first Bluetooth member device issues a volume adjusting request, the audio broadcasting device transmits a volume adjusting instruction to the first Bluetooth member device and the second Bluetooth member device. The first Bluetooth member device acquires a predetermined audio data from the BLE audio packets, controls a first audio playback circuit to playback the predetermined audio data, and adjusts an audio volume of the first audio playback circuit according to the volume adjusting instruction. The second Bluetooth member device acquires the predetermined audio data from the BLE audio packets, controls a second audio playback circuit to playback the predetermined audio data, and adjusts an audio volume of the second audio playback circuit according to the volume adjusting instruction.

Abstract: A Bluetooth audio broadcasting system includes: an audio broadcasting device arranged to operably broadcast BLE audio packets; a first Bluetooth member device arranged to operably parse the BLE audio packets to acquire a predetermined audio data and to operably control a first audio playback circuit to playback the predetermined audio data; and a second Bluetooth member device arranged to operably parse the BLE audio packets to acquire the predetermined audio data and to operably control a second audio playback circuit to playback the predetermined audio data. After receiving the BLE audio packets from the audio broadcasting device, the first Bluetooth member further adjusts an audio volume of the first audio playback circuit according to a volume adjusting instruction transmitted from another device other than the audio broadcasting device, and the second Bluetooth member further adjusts an audio volume of the second audio playback circuit according to the volume adjusting instruction.

Abstract: A Bluetooth communication system is provided, which comprises a Bluetooth host device and a Bluetooth device set. The connections between the Bluetooth host device and the Bluetooth device set complies with the specification of Bluetooth Low Energy Audio technology. The Bluetooth device set comprises at least a first member device and a second member device. The first member device and the second member device may be configured in a first mode wherein uplink audio signal transmission is allowed, and the connections are carried out by isochronous streaming channels respectively. The first member device transmits captured voice data to the Bluetooth host device, while the second member device does not transmit. When an event is triggered, the first member device can notify the second member device through a third-part device, so that the first member device and the second member device can carry out subsequent voice input handover procedures.

Abstract: A Bluetooth voice communication system includes: a Bluetooth host device arranged to operably conduct voice communication with a remote device; a first Bluetooth member device arranged to operably generate a left-channel voice data according to sounds captured by a first sound receiving circuit, and arranged to operably utilize a first Bluetooth communication circuit to transmit the left-channel voice data to the Bluetooth host device; and a second Bluetooth member device arranged to operably generate a right-channel voice data according to sounds captured by a second sound receiving circuit, and arranged to operably utilize a second Bluetooth communication circuit to transmit the right-channel voice data to the Bluetooth host device. The Bluetooth host device generates a stereo voice data based on the left-channel voice data and the right-channel voice data, and utilizes a signal transceiver circuit to transmit the stereo voice data to the remote device.

Abstract: The present invention discloses a method for purifying indole-3-lactic acid from a Lactobacillus plantarum fermentation supernatant, using a fermentation supernatant of Lactobacillus plantarum ZJ316 with a deposit number CCTCC NO: M 208077, including the following steps: adsorbing the fermentation supernatant with a macroporous resin XAD-16 first, then performing elution, collecting an eluate corresponding to 50% methanol with a pH of 7, and concentrating the eluate to obtain a concentrate; performing separation on the concentrate through dextrangel G25 to obtain a G25-2 fraction; and purifying the G25-2 fraction by reversed-phase high performance liquid chromatography, and concentrating the collected eluate to obtain the indole-3-lactic acid. The indole-3-lactic acid obtained in the present invention has a purity of 99.00%, and has broad-spectrum antibacterial activity.

Abstract: A smart tourniquet for self-administering a medication is provided. When a patient needs to inject themselves with a medication, intravenously, called an “infusion,” the patient wears the smart tourniquet around their arm and tightens the device. While the patient is using the smart tourniquet, the device automatically records the date and time of the infusion, called a “timestamp”. The patient can also use the device to record the dosage or “number of units” taken at the time of the infusion. The smart tourniquet can store the timestamp as well as other related information as a record. At a later time, the patient can recall prior records on the smart tourniquet itself. The smart tourniquet can also be synchronized with an application and the records can be downloaded for review by the patient, nurse or doctor to render accurate and timely care.

Abstract: The disclosure relates to a conductive housing for the connector and a connector comprising the conductive housing. The conductive housing comprises a plurality of side surfaces, at least one of which comprising a plurality of terminal connection portions spaced apart from one another at an edge portion of the side surface, and a gap being formed between two adjacent terminal connection portions; and a plurality of terminal pins, each of which being connected to the respective terminal connection portion. The conductive housing further comprises at least one conductive elastic piece, one of which being connected between the two adjacent terminal connection portions to at least partially cover the gap between the two adjacent terminal connection portions.

Abstract: A Bluetooth communication system is provided, which comprises a Bluetooth host device and a Bluetooth device set. The connections between the Bluetooth host device and the Bluetooth device set complies with the specification of Bluetooth Low Energy Audio technology. The Bluetooth device set comprises at least a first member device and a second member device. The first member device and the second member device may be configured in a first mode wherein uplink audio signal transmission is allowed, and the connections are carried out by isochronous streaming channels respectively. The first member device transmits captured voice data to the Bluetooth host device, while the second member device does not transmit. When an event is triggered, the first member device can notify the second member device through a third-part device, so that the first member device and the second member device can carry out subsequent voice input handover procedures.

Abstract: A Bluetooth communication system is provided, which comprises a Bluetooth host device and a Bluetooth device set. The connections between the Bluetooth host device and the Bluetooth device set complies with the specification of Bluetooth Low Energy Audio technology. The Bluetooth device set comprises at least a first member device and a second member device. The first member device and the second member device may be configured in a first mode wherein uplink audio signal transmission is allowed, and the connections are carried out by isochronous streaming channels respectively. The first member device transmits captured voice data to the Bluetooth host device, while the second member device does not. When an event is triggered, the first member device can notify the second member device through direct wireless connection, so that the first member device and the second member device can carry out subsequent voice input handover procedures.

Abstract: A Bluetooth communication system includes: a Bluetooth host device; and a Bluetooth device set which including a first member device and a second member device. The first member device is arranged to operably transmit a corresponding first device information to the Bluetooth host device. The second member device is arranged to operably transmit a corresponding second device information to the Bluetooth host device. The Bluetooth host device is arranged to operably control a display device to simultaneously display a first device item for representing the first member device and a second device item for representing the second member device in a graphical user interface. The Bluetooth host device is further arranged to operably establish a Bluetooth connection with the first member device and conduct pairing procedure with the first member device after receiving a selection command corresponding to the first member device.