Abstract: A transient electromagnetic device with variable shape and turns includes squares, a transmitting coil carrying frame, a transmitting coil, a turns-variable device, a current generator and a working power supply. The transmitting coil carrying frame is arranged inside the transmitting coil; the transmitting coil carrying frame is configured as a carrier of the transmitting coil, and configured for adjusting a side length of the transmitting coil and a shape of the transmitting coil; the square is configured for clamping and connecting the transmitting coil and the transmitting coil carrying frame to fix the transmitting coil to the transmitting coil carrying frame. The current generator is configured for generating transient current; the turns-variable device is configured for changing the turns of the transmitting coil; and the transmitting coil is configured for transmitting the transient current to a target area to be measured.

Abstract: The present invention belongs to the technical field of liquid crystal materials, and in particular relates to a liquid crystal composition with good frequency dependence and a liquid crystal display element or liquid crystal display containing the liquid crystal composition. The liquid crystal composition of the present invention comprises a compound represented by Formula I, a compound represented by Formula II and a compound represented by Formula III, wherein the mass percentage content of the compound represented by Formula I is not less than 30%. The liquid crystal composition provided by the present invention has an appropriate optical anisotropy, an appropriate dielectric anisotropy, especially a relatively low rotational viscosity, a good low-temperature mutual solubility and a good reliability, especially good frequency dependence.

Abstract: A liquid crystal composition, a liquid crystal display element and a liquid crystal display comprising the liquid crystal composition belong to the field of liquid crystal display. The liquid crystal composition comprises a compound represented by formula I with a mass content of 1-10% as the first component, a compound represented by formula II with a mass content of 1-20% as the second component, more than two compounds represented by formula III as the third component, more than three compounds represented by formula IV as the fourth component, and one or more polymerizable compounds as the fifth component, the crystal composition has low rotational viscosity and low ?1/K33 on the basis of maintaining appropriate optical anisotropy. When applied to liquid crystal display elements or liquid crystal displays, the liquid crystal display has a fast response speed.

Abstract: A liquid crystal composition, a liquid crystal display element and a liquid crystal display comprising the liquid crystal composition belong to the field of liquid crystal display. The liquid crystal composition of the present disclosure comprises a compound represented by formula I, a compound represented by formula II, one or more compounds represented by formula III, one or more compounds represented by formula IV and more than three compounds represented by formula V. The liquid crystal composition has low rotational viscosity ?1 and high stability to heat and light on the basis of maintaining appropriate optical anisotropy ?n, which can realize fast response of liquid crystal display.

Abstract: A liquid crystal composition, a liquid crystal display element and a liquid crystal display comprising the liquid crystal composition belong to the field of liquid crystal display. The liquid crystal composition of the present disclosure comprises a compound represented by formula I, a compound represented by formula II, one or more compounds represented by formula III, one or more compounds represented by formula IV and more than three compounds represented by formula V. The liquid crystal composition has low rotational viscosity ?1 and high stability to heat and light on the basis of maintaining appropriate optical anisotropy ?n, which can realize fast response of liquid crystal display.

Abstract: A liquid crystal composition, a liquid crystal display element and a liquid crystal display comprising the liquid crystal composition belong to the field of liquid crystal display. The liquid crystal composition comprises a compound represented by formula I with a mass content of 1-10% as the first component, a compound represented by formula II with a mass content of 1-20% as the second component, more than two compounds represented by formula III as the third component, more than three compounds represented by formula IV as the fourth component, and one or more polymerizable compounds as the fifth component, the crystal composition has low rotational viscosity and low ?1/K33 on the basis of maintaining appropriate optical anisotropy. When applied to liquid crystal display elements or liquid crystal displays, the liquid crystal display has a fast response speed.

Abstract: A method consisting of the application of several novel algorithms to reduce contention and loss rates at remote (downstream) nodes Labeled Optical Burst Switched (LOBS), Optical Burst Switched (OBS), Optical Packet Switched (OPS) or other networks having buffer memory at an ingress nodes and optionally having buffer memory, FDLs or other signal delay devices at intermediate (downstream) nodes. Contention and loss are reduced by delaying locally assembled bursts beyond the pre-determined offset time using the electronic memory available at the ingress nodes, or delaying transit bursts using fiber delay lines (FDLs) even though there is no contention without using FDLs at all or a smaller delay is sufficient to avoid contention at this intermediate node. Compared to existing algorithms that address contention locally (or reactively), the proposed algorithms significantly reduce the burst loss rate.