40results about How to "Completely shielded" patented technology

A light-shielding plate and a first light-shielding layer are arranged between a polarizing plate and a liquid crystal layer in a peripheral region of a liquid crystal panel so that linearly polarized light transmitted through the polarizing plate, which is a reflection polarizing plate, is not incident on the liquid crystal layer, but is reflected to the polarizing plate in the peripheral region.

In order to produce a planar antenna array in a radar sensor with a multitude of microstrip feeder lines and a multitude of coupling slots for emitting microwave energy into open space, which achieves a favorable antenna efficiency when embodied in a planar design using LTCC technology, the invention proposes embodying the feeder lines and the coupling slots in a multilayer ceramic substrate produced by means of the LTCC thick layer technique with an upper and a lower grounded layer, as well as enclosing the feeder lines and the coupling slots with plated-through contacts from the upper grounded layer to the lower one.

An actively shielded superconducting magnet coil system (1) for generating a magnetic field in a working volume (6), which is rotationally symmetric about a z-axis, comprising a radially inner main field winding (5) and a radially outer shielding winding (7), and an electrically highly conductive shielding cylinder (radially inner shielding cylinder) (8a / 8b) which is disposed radially inside the main field winding (5) or between main field winding (5) and the shielding winding (7) is characterized in that at least one further electrically highly conductive shielding cylinder (9) is disposed radially outside the shielding winding (7). The inventive magnet coil system prevents generation of a fringe field flash in the outer region of the magnet coil system in case of a quench.

The invention relates to a technique for purifying heavy oil-contaminated soil by an acoustochemical method, which comprises: preparing slurry by mixing an oil sample and deionized water, regulating the pH value of the slurry to 8 to 10, cleaning the slurry for 3 to 20 minutes by using ultrasonic waves at a treatment temperature of 15 to 25 DEG C, wherein an ultrasonic frequency is set to be 48 to 70kHz. When treated by the technique provided by the invention, the primary purification efficiency at normal temperature of the heavy oil-contaminated soil is increased and stabilized above 92 percent; and a requirement on a national allowed standard critical value of 500mg / kg is met. After Na2CO3 is added, the calcium and magnesium cations in soluble salts can be precipitated and separated by carbonates, and the created alkaline environment can completely shield interaction between solids brought by bivalent cations, particularly magnesium ions, and polar oil. A built acoustochemical operation parameter system can be quickly, simply and effectively used for heavy oil contamination remediation for purifying fine-grained salinized soil. After the heavy oil component of cleaning solution is subjected to simple standing and skimming treatment, the repeated utilization of the alkaline cleaning solution can be taken into consideration.

A reflective liquid crystal device is provided in which external light incident on a liquid crystal layer through a polarizing plate is reflected from a reflecting layer and then exits to the outside through the liquid crystal layer and the polarizing plate to display an image. A forward scattering type polarizing plate having a transmission axis and a diffusion axis is arranged between the polarizing plate and the liquid crystal layer such that the transmission axis of the forward scattering type polarizing plate is perpendicular to the transmission axis of the polarizing plate.