Abstract: An echo planar imaging method capable of reducing image distortion is provided. Two radio frequency (RF) pulses ? and ? are used to respectively flip over a longitudinal magnetization into a transverse plane at different moments, so as to obtain observable transverse magnetization; the transverse magnetization obtained by flipping over the longitudinal magnetization by means of ? and ? are respectively rephased in two different echo trains by means of gradient pulses. Navigator echo signals are respectively collected before the two gradient echo trains, and the amplitude difference between two gradient echo train signals is corrected on the basis of the amplitude difference between the two navigator echo signals. Correcting the signals collected by the two gradient echo trains, so as to obtain two pieces of image data, and the two pieces of image data are averaged to obtain a final image.

Abstract: The automatic heat transfer machine includes a base, an upright post and a heat transfer mechanism. The machine is rotatably connected to the base through the upright post, so that the machine can adjust. The machine comprises a shell, a driving motor, a screw, a nut, a connecting component and a heat transfer plate. The shell is provided with a space, and the driving motor, the screw, the nut and the connecting component are all installed in the space. The driving motor drives the screw to rotate. The screw is connected to the nut to change the rotary motion of the screw into the linear motion of the nut. The nut is connected to the heat transfer plate through the connecting component to drive the heat transfer plate to lift. Moreover, in use, the driving motor generates less noise, thereby improving the user experience.

Abstract: Embodiments of the present disclosure relate to a display apparatus. The display apparatus includes: a display; a user interface; and a controller, configured to perform: in response to a user input, synchronizing menu content data set under a current source to other sources, so that the other sources can obtain the same display effect as that under the current source. Unnecessary repeated setting is avoided, and convenience is brought to users in use.

Abstract: A gas detector fabrication method is provided. The method includes: fabricating a signal readout plate: fabricating metal readout electrodes on an upper end surface of a lower insulating layer, and covering upper end surfaces of the metal readout electrodes with an upper insulating layer; pressing the signal readout plate and performing surface processing: pressing the signal readout plate on a substrate, and making a side, distant from the substrate, of the upper insulating layer to be a plane; fabricating a resistive anode electrode: fabricating a resistive layer on an upper end surface of the signal readout plate, and fixing a low-resistance electrode ring to a periphery of an upper end surface of the resistive layer; and fabricating a detector amplification assembly: fixing a support frame to an upper end of the low-resistance electrode ring, and fixing a micro-grid electrode to an upper end of the support frame.

Abstract: The present application provides a display apparatus and a method. The display apparatus, comprises: a display; a communicating device: one or more processors configured to execute instructions to cause the display apparatus to: receive a first command on a first user interface from a user, wherein the first user interface is a user interface corresponding to content from a first external device, the first command is used for indicating to present a first shortcut list, and the first shortcut list comprises device names of one or more external devices; in response to the first command, present the first shortcut list on the first user interface; receive a first selection command for indicating to present content from a second external device different from the first external device.

Abstract: A heat press machine, includes an upper frame body and a lower frame body, wherein a heating plate is arranged in the upper frame body, a lower plate is arranged in the lower frame body, the rear end of the upper frame body is hinged with the rear end of the lower frame body, an elastic assembly is arranged between the rear end of the upper frame body and the rear end of the lower frame body. The elastic assembly makes the upper frame body and the lower frame body open at an acute angle in a natural state; self-locking mechanisms are arranged at the front end of the upper frame body and the front end of the lower frame body, the upper frame body is pressed down so the lower frame body is covered with the upper frame body, the heating plate and the lower plate are kept closed.

Abstract: The present disclosure belongs to the technical field of heat transfer printing, and in particular relates to an electric automatic heat transfer machine. The electric automatic heat transfer machine comprises a main machine base and a main frame; the upper end face of the main machine base is provided with a hot stamping table; the main frame is provided on the upper end face of the main machine base, the free end of the main frame is located above the hot stamping table, and there is a working gap between the free end of the main frame and the hot stamping table; the main frame is provided with a controller and an electric drive device, an action end of the electric drive device is located above the hot stamping table, and the action end of the electric drive device is provided with a heating plate; and the controller is electrically connected with the electric drive device and the heating plate.

Abstract: A low-heat-loss operation method of a line-focusing heat collection system and the line-focusing heat collection system are provided. The method includes the following steps. Solar energy is utilized to preheat a collector tube in an empty tube state, so that the collector tube is in a preheating mode. After a set preheating temperature is reached, a heat transfer working medium is injected into the collector tube. In the injection process of the heat transfer working medium, an injection section of the collector tube is converted into a focusing mode from a preheating mode. After heat collection is finished, the circulation of the heat transfer working medium is stopped, and the focusing mode of the collector tube is kept. In the drainage process of the heat transfer working medium, an emptying section of the collector tube is converted into a light heat-tracing mode from a focusing mode.

Abstract: A Bluetooth-based data transmission method is provided. The method is applied on a first device and includes the following steps: establishing a communication connection with a second device; determining a sniff interval which comprises a sniff wake-up window; entering a sniff mode; and transmitting a first data packet to the second device in the sniff interval. The transmission duration of the first data packet is longer than or equal to two time slots. The step of transmitting the first data packet to the second device in the sniff interval includes the steps of starting to transmit the first data packet to the second device in an even time slot of the sniff interval or in an odd time slot of the sniff interval. With the data transmission method of the present application, synchronization between transmission of the first device and reception of the second device can be realized.

Abstract: Provided herein is a composite material, and a method of producing the composite material. The method of producing the composite material includes providing a first material comprising turbostratic graphene, providing a second material comprising rubber, mixing the first material and the second material, and producing a turbostratic graphene rubber composite.

Abstract: A multi-sector data correction method for gamma imaging while drilling includes the steps of: (a) dividing each gamma imaging sector into a plurality of counting zones; (b) counting a number of valid counting pulses for each counting zone at a predetermined time interval during MWD; (c) constructing a plurality of measurement vectors based on a value of recording times of each counting zone; (d) establishing a correction matrix with a conditional number less than a set value through an optimization algorithm; and (e) calculating a gamma intensity of each measured sector with the plurality of measurement vectors and the correction matrix as constructed, so as to complete the correction on the measurement data of each measured sector for each predetermined time interval. This method eliminate problems such as rotational measurement distortion of the gamma imaging while drilling tool and improve the accuracy of calculating the formation dip angle.

Abstract: A communication method includes storing, by a terminal device, a first parameter usable by the terminal device in a first mode. The communication method further includes failing, by the terminal device, to access a network device, failing to register with the network device, or failing to be capable of camping on a network of the network device. The communication method further includes performing, by the terminal device, access to the network device in the first mode by the first parameter.

Abstract: The present application discloses a wireless charging camera comprising a camera and a magnetically attractive wireless charging base; the camera comprises a housing, a photo-sensor, a white light lens, a pickup, an indicator light, a lens module, a PIR lens and a speaker are arranged on front face of the housing, and a control motherboard, a wireless charging receiving induction coil module, a rechargeable battery module and an iron pot are arranged inside the housing; the magnetically attractive wireless charging base comprises an upper housing of the charging base, a lower housing of the charging base, a wireless charging transmitting induction coil module, a permanent magnet, a charging base foot pad, a control board, an electromagnet module and an integrated power cord of a control panel cable.

Abstract: Disclosed are basic copper chloride particulate matter and a preparation method therefor. The basic copper chloride particulate matter is mainly composed of basic copper chloride particles, and the basic copper chloride particles, with a particle size of 60-250 ?m, in the basic copper chloride particulate matter comprise 97% or more of the total mass of the basic copper chloride particulate matter.

Abstract: The present disclosure relates to a wood-plastic coated metal composite profile and a production process, and belongs to the technical field of composite profiles. The wood-plastic coated metal composite profile includes a metal core material, a wood-plastic surface layer and an intermediate layer provided between the metal core material and the wood-plastic surface layer. The intermediate layer includes unsaturated carboxylic acid modified polyolefin and thermoplastic polyurethane elastomer, inorganic filler, polyurethane prepolymer. In the present disclosure, an intermediate layer is provided between the wood-plastic surface layer and the metal core material for bonding. The intermediate layer has excellent performance when bonding with the metal, and at the same time, it can blend with the wood-plastic surface layer to a certain extent during co-extrusion.