The utility model relates to a thermal comfort dress system, which comprises a dress. The dress comprises multiple cloth layers having liquid water one-way transmission characteristic; an innermost cloth layer of the multiple cloth layers is a cloth layer having more than class two liquid water one-.....
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The invention provides a concrete paving brick capable of clarifying air produced by using building waste and recycled glass and the manufacturing method thereof. The paving brick comprises an absorption layer and a foundation layer, the absorption layer comprises cement, aggregate, titanium oxide a.....
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The present invention relates to a light guide plate and a backlight module having the light guide, the light guide plate on the upper surface of the structure of a plurality of V-shaped grooves, said V-shaped groove structure has a free surface contour of the gradient, the lower surface of the micr.....
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The invention discloses a thin-film phase shifter of a microwave filter network and a manufacturing method, wherein the phase shifter is formed by a substrate, a ferroelectric thin film, a surface electrode and a base electrode and has a multi-layer structure of a microwave filter network, and the m.....
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本发明涉及一种旋转超声成像系统，包括控制装置、超声探头和旋转马达装置。其中所述旋转马达装置接收所述超声探头发送的超声信号，并通过三百六十度旋转输出所述超声信号到所述控制装置；所述超声探头包括具有一安装槽的壳体，在所述安装槽内设置有具有一聚焦凹面的超声换能器。通过直接在超声换能器上构造聚焦凹面，从而在无需加入额外组件(例如透镜)的情况下，实现了旋转超声成像系统的聚焦，提高了横向分辨率及性能；通过将旋转超声成像系统的旋转马达输出轴构造为中空轴干的形式，为超声换能器的超声信号传输到控制装置提供一个三百六十度旋转的路径，从而不需要设计复杂的模块来解决三百六十度旋转超声换能器的位置校准及电信号引出。此设.....
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