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In order to solve the problem of ECG signal detection, wireless sensor network is designed with ZigBee technology. This article describes the details of the system structure, the design of hardware and software and the communication methods. we can realize wireless detection of human ECG signal through the wireless sensor system. Design the host computer software system based on Qt framework can achieve...
Extreme ultraviolet (EUV) light source is still the key issue for the industrial application of EUV lithography. For the discharge-produced-plasma EUV source, highly repetitive discharge up to tens of kilohertz is required to achieve the sufficient average radiation power at intermediate focus. Electrical recovery of electrode gaps prior to each discharge influences the EUV emission and determines...
According to the principle of carrier diffusion, we fabricated an electric pattern high power single quantum well broad area semiconductor laser. The designed devices have special current injection stripe which forms Gaussian-like photon gain laterally. Utilizing this principle, tailored gain lasers exhibiting near single lobe far field patterns were found. The tailored gain lasers emitting at 808...
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