Abstract: An electronic device is provided. The electronic device includes a frame, a sliding seat, a guiding mechanism, a drive mechanism, and multiple functional components accommodated in the sliding seat. The frame includes a pair of side walls oppositely disposed and a top wall. The top wall defines an accommodating groove. The accommodating groove extends through the pair of side walls. The sliding seat is slidably connected with the frame in the accommodating groove via the drive mechanism, and the guiding mechanism is disposed between the sliding seat and the frame, whereby the sliding seat driven by the drive mechanism extends from or is accommodated in the accommodating groove along a guiding direction of the guiding mechanism. The sliding seat is provided with at least one functional portion, whereby the multiple functional components are able to transmit a signal through the at least one functional portion.

Abstract: A mobile terminal is provided. The mobile terminal includes: a rear cover; a circuit board; a battery connector; and a fixing member including a first holder arranged on the rear cover and a second holder arranged on the circuit board. The first holder has two first elastic arms, the second holder has two second elastic arms, and each of the two second elastic arms is fastened to each of the two first elastic arms to define a receiving space for receiving the battery connector.

Abstract: Disclosed herein is a converter for converting an AC voltage to a DC voltage, the converter comprising: a first H-bridge circuit comprising a first AC terminal for receiving an AC voltage, a second AC terminal, a first DC terminal and a second DC terminal; a second H-bridge circuit comprising a first AC terminal for receiving an AC voltage, a second AC terminal, a first DC terminal and a second DC terminal; an isolation block arranged between the second AC terminal of the first H-bridge circuit and the second AC terminal of the second H-bridge circuit; and a DC voltage output of the converter with a first terminal and a second terminal; wherein: the first terminal of the DC voltage output is connected to the first DC terminal of the first H-bridge circuit and the first DC terminal of the second H-bridge circuit; and the second terminal of the DC voltage output is connected to the second DC terminal of the first H-bridge circuit and the second DC terminal of the second H-bridge circuit.

Abstract: A connector assembly is configured to connect a first circuit board and a second circuit board. The connector assembly includes a board-to-board connector, a buckle pressing plate and a pressing and covering piece. The buckle pressing plate and the board-to-board connector which is spaced from the buckle pressing plate are arranged on the second circuit board, and the board-to-board connector is connected with the first circuit board to enable the first circuit board to be electrically connected with the second circuit board. The pressing and covering piece includes a covering portion and a buckling portion extending from a first end of the covering portion. The buckling portion is connected to the buckle pressing plate in a buckling manner. The covering portion presses and covers the board-to-board connector to fix the board-to-board connector on the second circuit board. A power supply assembly and an electronic device are also provided.

Abstract: A display substrate includes: a display driving signal line; and at least one set of testing pads, wherein each set of the testing pads includes: a plurality of light-on testing pads arranged successively and connected to the display driving signal line; and two pin-miss testing pads electrically connected to one another while not connected to the display driving signal line.

Abstract: An electrical converter (203) having an active diode-clamped multilevel topology is shown. Each clamping diode is connected in antiparallel with a switch (S5A, S5B). The converter comprises polyphase supply phases (A, B, C) each of which are connected via a respective phase leg (401, 402, 403) to dc rails (301, 302) and a dc-link capacitor. The dc-link capacitor includes a plurality of series-connected capacitors (404, 405). A controller is configured to, in response to an event signal, for each phase leg, activate a combination of switches therein to form a pair of parallel conduction paths to a midpoint (406) between two capacitors in the dc-link capacitor, thereby connecting each phase to the same node.

Abstract: An electronic device is provided. The electronic device includes a frame, a sliding seat, and a receiver accommodated in the sliding seat. The frame includes a pair of side walls oppositely disposed and a top wall. The top wall defines an accommodating groove. The accommodating groove extends through the pair of side walls. The sliding seat is slidably disposed in the accommodating groove of the frame. The sliding seat defines a first receiving hole, and the receiver is sealed and covers the first receiving hole of the sliding seat, whereby a sound signal of the receiver is transmitted to outside through the first receiving hole when the sliding seat extends from the accommodating groove. In addition, a terminal device and a method for controlling an electronic device are provided.

Abstract: An electronic device is provided. The electronic device includes a frame, a sliding seat, a guiding mechanism, a drive mechanism, and multiple functional components accommodated in the sliding seat. The frame includes a pair of side walls oppositely disposed and a top wall. The top wall defines an accommodating groove. The accommodating groove extends through the pair of side walls. The sliding seat is slidably connected with the frame in the accommodating groove via the drive mechanism, and the guiding mechanism is disposed between the sliding seat and the frame, whereby the sliding seat driven by the drive mechanism extends from or is accommodated in the accommodating groove along a guiding direction of the guiding mechanism. The sliding seat is provided with at least one functional portion, whereby the multiple functional components are able to transmit a signal through the at least one functional portion.

Abstract: A methods and systems for determining a change in condition of a rock bolt. Some methods may comprise, at a first point in time, propagating shear and longitudinal ultrasonic waves along the rock bolt to measure a first time of flight for each of the shear and longitudinal waves, at a second point in time after the first point in time, propagating shear and longitudinal ultrasonic waves along the rock bolt to measure a second time of flight for each of the shear and longitudinal waves, and using the relative changes of the first and second time of flights, determining the change in condition of the rock bolt section.

Abstract: A display substrate includes: a display driving signal line; and at least one set of testing pads, wherein each set of the testing pads includes: a plurality of light-on testing pads arranged successively and connected to the display driving signal line; and two pin-miss testing pads electrically connected to one another while not connected to the display driving signal line.

Abstract: The present invention discloses a thermally conductive composite sheet, including a first aluminum alloy layer, at least one graphite sheet, an aluminum alloy frame, and a second aluminum alloy layer, where the aluminum alloy frame is provided with at least one opening; the graphite sheet is positioned inside the opening of the aluminum alloy frame; the aluminum alloy frame and the graphite sheet are sandwiched between the first aluminum alloy layer and the second aluminum alloy layer; the first aluminum alloy layer is diffusion-bonded to the graphite sheet and the aluminum alloy frame; the second aluminum alloy layer is diffusion-bonded to the graphite sheet and the aluminum alloy frame; and the graphite sheet is cladded by the first aluminum alloy layer, the second aluminum alloy layer, and the aluminum alloy frame, to form a unity.

Abstract: Methods are provided for measuring isotropic scattering coefficients of suspensions using multiply scattered radiation that is modulated in amplitude at selected modulation frequencies. The radiation may be light. Quantities describing diffusion of the multiply scattered radiation are preferably measured at a plurality of distances between source and receiver and a plurality of frequencies. Linear regression techniques are provided for maximizing accuracy of the scattering data at a selected wavelength of a radiation. Methods are provided for inversing an integral equation so as to determine a calculated value of scattering coefficient. Parameters are varied to minimize the difference between the calculated and measured scattering coefficients and thereby to determine volume fraction, particle size distribution and interparticle force between the particles in a suspension.

Abstract: Ultrasonic apparatus and associated methods for the in-line monitoring of melting, mixing and chemical reaction processes of materials inside an enclosed chamber having rotating elements associated therewith are presented. The chamber may be heated and the rotating elements may be blades and/or screws. The chamber may be a heating barrel and the materials may be polymer and polymer composites pellets, metal pellets and chemical compounds. Ultrasonic sensors, which are preferably coupled to a wall of the chamber, may be high temperature ultrasonic transducers attached to the external surface of the chamber or ultrasonic buffer rods embedded into the chamber and coupled to cooled ultrasonic transducers. These sensors are operated in the reflection mode and are placed over the rotating elements. The number and locations of the sensors depend on applications.

Abstract: Methods are provided for measuring isotropic scattering coefficients of suspensions using multiply scattered radiation that is modulated in amplitude at selected modulation frequencies. The radiation may be light. Quantities describing diffusion of the multiply scattered radiation are preferably measured at a plurality of distances between source and receiver and a plurality of frequencies. Linear regression techniques are provided for maximizing accuracy of the scattering data at a selected wavelength of a radiation. Methods are provided for inversing an integral equation so as to determine a calculated value of scattering coefficient. Parameters are varied to minimize the difference between the calculated and measured scattering coefficients and thereby to determine volume fraction, particle size distribution and interparticle force between the particles in a suspension.

Abstract: Methods are provided for measuring isotropic scattering coefficients of suspensions using multiply scattered radiation that is modulated in amplitude at selected modulation frequencies. The radiation may be light. Quantities describing diffusion of the multiply scattered radiation are preferably measured at a plurality of distances between source and receiver and a plurality of frequencies. Linear regression techniques are provided for maximizing accuracy of the scattering data at a selected wavelength of a radiation. Methods are provided for inversing an integral equation so as to determine a calculated value of scattering coefficient. Parameters are varied to minimize the difference between the calculated and measured scattering coefficients and thereby to determine volume fraction, particle size distribution and interparticle force between the particles in a suspension.

Abstract: Methods are provided for measuring isotropic scattering coefficients of suspensions using multiply scattered radiation that is modulated in amplitude at selected modulation frequencies. The radiation may be light. Quantities describing diffusion of the multiply scattered radiation are preferably measured at a plurality of distances between source and receiver and a plurality of frequencies. Linear regression techniques are provided for maximizing accuracy of the scattering data at a selected wavelength of a radiation. Methods are provided for inversing an integral equation so as to determine a calculated value of scattering coefficient. Parameters are varied to minimize the difference between the calculated and measured scattering coefficients and thereby to determine volume fraction, particle size distribution and interparticle force between the particles in a suspension.

Abstract: Characterizing a powder bed includes generating measurements by repeating the following. A location of the powder bed is illuminated with light having a time varying intensity with a resolution of less than one hundred nanoseconds. The particles scatter the light to alter the time varying intensity. The light propagates through a portion of the particles that defines a sampled volume. The light received from the powder bed is detected. The altered time-varying intensity of the light is measured to generate a time-dependent signal having a time-dependence that is less than or equal to a time-of-flight of a photon of the propagating light. An optical property is determined from the time-dependent signal, and a characteristic is determined from the optical property. The sampled volume is determined, and variance of the measurements is calculated. Uniformity of the powder bed is determined in accordance with the variance and the sampled volume.

Abstract: Ultrasonic apparatus and associated methods for the in-line monitoring of melting, mixing and chemical reaction processes of materials inside an enclosed chamber having rotating elements associated therewith are presented. The chamber may be heated and the rotating elements may be blades and/or screws. The chamber may be a heating barrel and the materials may be polymer and polymer composites pellets, metal pellets and chemical compounds. Ultrasonic sensors, which are preferably coupled to a wall of the chamber, may be high temperature ultrasonic transducers attached to the external surface of the chamber or ultrasonic buffer rods embedded into the chamber and coupled to cooled ultrasonic transducers. These sensors are operated in the reflection mode and are placed over the rotating elements. The number and locations of the sensors depend on applications.

Abstract: Characterizing a powder bed includes generating measurements by repeating the following. A location of the powder bed is illuminated with light having a time varying intensity with a resolution of less than one hundred nanoseconds. The particles scatter the light to alter the time varying intensity. The light propagates through a portion of the particles that defines a sampled volume. The light received from the powder bed is detected. The altered time-varying intensity of the light is measured to generate a time-dependent signal having a time-dependence that is less than or equal to a time-of-flight of a photon of the propagating light. An optical property is determined from the time-dependent signal, and a characteristic is determined from the optical property. The sampled volume is determined, and variance of the measurements is calculated. Uniformity of the powder bed is determined in accordance with the variance and the sampled volume.