Abstract: Provided are a cruise method and apparatus of a heavy pan-tilt, a medium, and an electronic device. The method includes the following steps: A starting preset position of the heavy pan-tilt performing a preset position cruise in a current unit rotation stage of a current pan-tilt cruise cycle is determined, where one unit rotation stage corresponds to one rotation; the starting preset position is taken as a stop starting point, and at least two stop preset positions of the heavy pan-tilt in the current unit rotation stage are determined from preset positions divided in advance, where two adjacent stop positions in the same unit rotation stage are spaced by a preset number of preset positions; and the heavy pan-tilt is controlled to rotate sequentially on the at least two stop preset positions of the current unit rotation stage.

Abstract: A device for measuring and calibrating the ground pressure of the seeding depth limiting wheels includes: a main body, connected to a pair of depth limiting wheels; a pressure adjusting member, arranged on the main body and configured to adjust a pressure of the depth limiting wheels to ground; a pressure sensor, arranged on the main body and configured to detect an actual pressure output by the pressure adjusting member; and a pressure acquisition calibrator, configured to detect a ground pressure applied by the depth limiting wheels on ground; and automatically fit a plurality of actual pressures and a plurality of ground pressures to establish a model for measuring ground pressure of a pair of depth limiting wheels. The device can automatically acquire a plurality of actual pressures and a plurality of ground pressures to establish a model for measuring ground pressure of a pair of depth limiting wheels.

Abstract: This application provides a communication method and an apparatus, to implement a channel sensing procedure between different apparatuses while meeting a communication requirement, thereby improving communication efficiency of a WLAN system and reducing overheads. In the method, a first apparatus sends a first frame to a second apparatus, where the first frame is used to request channel sensing; and the first apparatus receives a second frame from the second apparatus, where the second frame includes channel sensing information between the first apparatus and the second apparatus, the channel sensing information is determined based on a part of or all of n PPDUs, the n PPDUs are PPDUs sent by the first apparatus, and n is greater than or equal to 1.

Abstract: A scheduling method and system for the operation of reservoirs to recharge freshwater for repelling saltwater intrusion under changing conditions. Research data of a research area is collected, the research area is generalized, and the river network topology of the area is constructed; the research data acquire the seawater flow data of each station in the research area for N time periods, analyze the correlation between the flow of a predetermined station and the saltwater intrusion and build a seawater flow spatial-temporal evolution model; rainfall data and freshwater runoff of each station are acquired to analyze the variation trends of freshwater flow and hydrological regime of each station and a first ending point and build a freshwater flow spatial-temporal evolution model; and a scheduling model for recharging freshwater for repelling saltwater intrusion is built for simulation, a scheduling method is provided, and a scheduling scheme set is formed.

Abstract: Provided is a beam-column joint of a prefabricated self-centering RC (Reinforced Concrete) frame based on an SMA (Shape Memory Alloy) material, including an RC precast column, an RC precast beam, and self-centering energy dissipation dampers arranged, and a friction energy dissipation damper. The self-centering energy dissipation damper includes an SMA kernel, an upper restraint cover plate, a lower restraint cover plate, a column-end connection reinforcing plate and a beam-end connection reinforcing plate, and a set energy dissipation gap is reserved between the SMA kernel and the upper restraint cover plate. The friction energy dissipation damper includes an in-column embedded connecting plate and a beam-end embedded connecting plate.

Abstract: A device which includes a free layer and a current channel. The free layer has a configurable magnetization state. The current channel includes a low-symmetry crystal with only one mirror plane. The low-symmetry material has relatively large unconventional spin Hall effect (SHE). A current through the current channel applies a spin-orbit torque that sets the magnetization state of the free layer.

Abstract: Provided are a heterocyclic amide compound of general formula (I), a pharmaceutically acceptable salt thereof and a preparation method therefor, and the use of the compound in the preparation of a drug for treating diseases related to the activity of STING, in the preparation of an immunologic adjuvant, and in the preparation of a drug for activating STING.

Abstract: A method for calculating an augmented health risk score by a health risk system including a processor, including: receiving, by the processor, CO2 level data and location data for a user; receiving, by the processor, location data for the user; determining, by the processor, when the user is outdoors based upon the received CO2 level data and calculating an outdoor pollution exposure based upon pollution data for the user's location; determining, by the processor, when the user is indoors based upon the received CO2 level data, calculating a ventilation rate based upon the received CO2 level data and the local outdoor pollution levels, and calculating an indoor pollution exposure based upon pollution data for the user's location; and calculating, by the processor, the augmented health risk score based upon the outdoor pollution exposure, indoor pollution exposure, a medical history of the user, and demographic information of the user.

Abstract: System and method for telemetry communication provide enhance noise cancellation in well intervention operations. The system and method employ a surface panel operable to transmit and receive a telemetry signal through a wireline extending along a wellbore. A power converter receives and converts electrical power from the cable to operating power for a downhole tractor motor. A modem coupled to the cable processes and provides the telemetry signal to a microcontroller. A noise signal pathway provides a noise signal from the tractor motor directly to the microcontroller, the noise signal representative of electrical noise generated by the downhole tractor. The microcontroller performs noise cancellation on the telemetry signal to produce a de-noised telemetry signal by obtaining an estimated noise channel transfer function for the noise signal, and applying the estimated noise channel transfer function and the noise signal to the telemetry signal from the modem.

Abstract: System and method for telemetry communication provide enhance noise cancellation in well intervention operations. The system and method employ a surface panel operable to transmit and receive a telemetry signal through a wireline extending along a wellbore. A power converter receives and converts electrical power from the cable to operating power for a downhole tractor motor. A modem coupled to the cable processes and provides the telemetry signal to a microcontroller. A noise signal pathway provides a noise signal from the tractor motor directly to the microcontroller, the noise signal representative of electrical noise generated by the downhole tractor. The microcontroller performs noise cancellation on the telemetry signal to produce a de-noised telemetry signal by obtaining an estimated noise channel transfer function for the noise signal, and applying the estimated noise channel transfer function and the noise signal to the telemetry signal from the modem.

Abstract: A digital telemetry system can be calibrated to improve data communication. A receiver can receive a modulated signal with a predetermined sequence of transmitted symbols. A processing device can be communicatively coupled to the receiver for jointly performing carrier phase synchronization and symbol-timing recovery on the modulated signal to determine a corrective phase offset and a corrective timing offset. The receiver can be calibrated to use the corrective phase offset and the corrective timing offset for demodulating a subsequently modulated signal. In additional or alternative aspects, a demodulator can demodulate the modulated signal and determine an amount of interference introduced to the modulated signal. A transmitter can transmit data based on the amount of interference to a modem that transmitted the modulated signal for use by the modem to dynamically adjust hit allocation of the subsequently modulated signal.