Abstract: A swing disc spreader includes a swing disc which is arranged to be rotatable; and a swing driving mechanism, which is in transmission connection to the swing disc and used for driving the swing disc to swing reciprocatingly, the swing disc being configured to be in contact with materials during a swinging process so as to spread the materials outwards. In the technical solution provided in the present application, the swing disc spreader can achieve the spreading operation of materials simply by using one swing disc, such that the swing disc spreader has a simpler structure, achieves a reduced overall size and a relatively uniform spreading width, thus reducing the cost.

Abstract: A method includes setting an execution condition of a custom function of an electronic device; determining whether a touch operation performed by an external device is detected; if a touch operation performed by the external device is detected, obtaining status information of the electronic device in response to the touch operation; determining whether an authorization status of the electronic device is a first state; if the authorization status of the electronic device is the first state, waiting to receive a connection request sent by the external device, where the connection request carries authentication information; determining whether the authentication information is correct, and whether a quantity of valid touches and a touch time meet the execution condition; and if the authentication information is correct, and the quantity of valid touches and the touch time meet the execution condition, performing the custom function.

Abstract: Embodiments of this application provide a Bluetooth connection method, a device, and a system, and relate to the field of wireless communications technologies, so that a Bluetooth headset can automatically switch, through a virtual connection, between audio services of a plurality of electronic devices for processing, and power consumption of the Bluetooth headset and the electronic devices can be reduced. The solution is as follows: A communications system includes a Bluetooth headset, and a first electronic device and a second electronic device that have been paired with the Bluetooth headset. The Bluetooth headset is configured to establish a first connection to the first electronic device, where the first connection includes an ACL connection.

Abstract: The ability to scale data can provide numerous advantages, especially with regard to agricultural information. For example, agroecosystems include land and data associated with the land, such as physical traits and information. This can include, for example, information related to the soil, crops, other vegetation, and other information related to the land. In order to be able to quickly and accurately know such information and traits, ground truth data can be scaled using aerial and/or satellite imagery. Models and other machine learning can utilize ground truth data to scale limited field area data (e.g., 0.1-1 km) and accurately apply the same to large swaths of land (e.g., >100 km2) with accuracy for the field traits and/or characteristics.

Abstract: The present invention provides a filtering and separating system and method for recycling Fe3O4 nano-particles. The system includes an original liquid tank, a first booster pump, a clustered filter, an electromagnetic filtering machine, a dynamic membrane system and a nano-particle collecting tank; and a concentrated liquid outlet of the dynamic membrane system is connected with a material inlet of the clustered filter, and a material outlet of the electromagnetic filtering machine is also connected with the nano-particle collecting tank.

Abstract: A methodology is used to quantify implications and/or footprints of carbon, water, and/or nutrients of a particular crop in a region on a large scale and at field-level. A methodology is used to quantify, calculate, and/or visualize cover crop traits, tillage practices, and/or their outcomes at large scale. A methodology is used to accurately derive, estimate, and/or predict large-scale, long-term, and field-level cover crop adoption and biomass information using remote sensing time series.

Abstract: A BLUETOOTH connection system includes a BLUETOOTH headset, and a first electronic device and a second electronic device that have been paired with the BLUETOOTH headset. The BLUETOOTH headset is configured to establish a first connection to the first electronic device, where the first connection includes an asynchronous connection-oriented link (ACL) connection. The BLUETOOTH headset is further configured to send a BLUETOOTH Low Energy (BLE) broadcast message. The second electronic device is configured to establish a second connection to the BLUETOOTH headset after receiving the BLE broadcast message.

Abstract: A cable connector includes: a front housing including plural forwardly protruding mating tubes each having a mating cavity and plural rearwardly protruding fixing portions; a rear housing having plural receiving cavities penetrating therethrough in a front and rear direction and plural fixing grooves located next to the receiving cavities; and plural cable assemblies, wherein the cable assemblies pass through the receiving cavities and are received in the mating cavities and the receiving cavities, the fixing portions are received in the fixing grooves, and each of the fixing portions has a rear hook which extends into the receiving cavity and clasps the cable assembly to prevent the front housing from being detached from the rear housing.

Abstract: The present disclosure provides a temperature detection system arranged in a temperature detection device, and a charging device thereof. The temperature detection system includes a power supply, a Bluetooth chip configured to detect a temperature of an object to be measured, output detection pulses and including a thermistor module that is configured to detect an ambient temperature of the object to be measured to obtain an intermediate temperature value, and a pulse temperature sensor arranged around the Bluetooth chip. The Bluetooth chip is configured to receive the detection pulses, determine a final temperature value according to the intermediate temperature value and number of the detection pulses per unit time, and convert the final temperature value into Bluetooth signals to output. The present disclosure can ensure detection redundancy and improve detection accuracy, by providing two temperature detections to calculate the final temperature value according to a preset software program.

Abstract: A method includes setting an execution condition of a custom function of an electronic device; determining whether a touch operation performed by an external device is detected; if a touch operation performed by the external device is detected, obtaining status information of the electronic device in response to the touch operation; determining whether an authorization status of the electronic device is a first state; if the authorization status of the electronic device is the first state, waiting to receive a connection request sent by the external device, where the connection request carries authentication information; determining whether the authentication information is correct, and whether a quantity of valid touches and a touch time meet the execution condition; and if the authentication information is correct, and the quantity of valid touches and the touch time meet the execution condition, performing the custom function.

Abstract: A spectacle lens includes at least one substrate and at least one photochromic layer. The spectacle lens exhibits no swelling of the coating and/or of the substrate in the event of at least one damage to the surface of the spectacle lens with a force of ?65 m N after contamination of the surface of the spectacle lens with at least one organic acid over a period from a range of 12 hours to 84 hours. Further, a method for producing the spectacle lens and the use of at least one chemically modified layer and/or at least one barrier layer for coating a spectacle lens substrate is disclosed.

Abstract: The ability to scale data can provide numerous advantages, especially with regard to agricultural information. For example, agroecosystems include land and data associated with the land, such as physical traits and information. This can include, for example, information related to the soil, crops, other vegetation, and other information related to the land. In order to be able to quickly and accurately know such information and traits, ground truth data can be scaled using aerial and/or satellite imagery. Models and other machine learning can utilize ground truth data to scale limited field area data (e.g., 0.1-1 km) and accurately apply the same to large swaths of land (e.g., >100 km2) with accuracy for the field traits and/or characteristics.

Abstract: The present invention provides a filtering and separating system and method for recycling Fe3O4 nano-particles. The system includes an original liquid tank, a first booster pump, a clustered filter, an electromagnetic filtering machine, a dynamic membrane system and a nano-particle collecting tank; and a concentrated liquid outlet of the dynamic membrane system is connected with a material inlet of the clustered filter, and a material outlet of the electromagnetic filtering machine is also connected with the nano-particle collecting tank.

Abstract: A BLUETOOTH reconnection method is used in a BLUETOOTH connection system that includes a first device and a second device. The method includes that the first device sends a BLUETOOTH Low Energy (BLE) advertising signal to the second device after a BLUETOOTH connection between the first device and the second device is disconnected. If the second device determines that the received BLE advertising signal is a first BLE advertising signal, the second device does not page the first device, and waits to receive a page packet sent by the first device. If the second device determines that the received BLE advertising signal is a second BLE advertising signal, the second device actively pages the first device, and the first device waits to receive a page packet sent by the second device.

Abstract: A test method based on a test system for five-dimensional space effects of ground surface settlement caused by dual-mode shield construction is provided. First, manufacturing a formation similarity material model; then, laying ground surface monitoring points in longitudinal and transverse direction; installing a shield machine model, and performing shield construction, the shield machine model adopts a double-shield body mode; performing five-dimensional monitoring during shield construction; designing an observation method for ground surface settlement data in step length and time dimension, and acquiring five-dimensional data in combination with three-dimensional scanning; and finally, performing deformation information processing according to the monitored data, so as to realize an acquisition of the five-dimensional data.