摘要：随着我国经济的高速发展,人们的生活水平也随之不断的提高,因此,群众的文化生活也随之逐渐提高。目前,全国到处的电视台以及网络电视台都增加了播出节目的套数和播出的时间。甚至有一些省份的电视台还出现了24小时不停的播出节目的情况。这些无疑会使人民的文化生活和精神生活得到极大丰富,但对于能否安全和可靠的运行无线发射系统来说,这无疑是一个很大的挑战。本文介绍了电视和广播无线发射监控系统的设计思路以及建设的主要结构,然后分析了如何设计无线发射监控系统,总结其发展趋势。

摘要：Developing effective and practical electrocatalyst under industrial electrolysis conditions is critical for renewable hydrogen ***,we report the self-supporting NiFe LDH-MoS_(x) integrated electrode for water oxidation under normal alkaline test condition(1 M KOH at 25℃)and simulated industrial electrolysis conditions(5 M KOH at 65℃).Such optimized electrode exhibits excellent oxygen evolution reaction(OER)performance with overpotential of 195 and 290 mV at current density of 100 and 400 mA·cm^(-2) under normal alkaline test ***,only over-potential of 156 and 201 mV were required to achieve the current density of 100 and 400mA·cm^(-2) under simulated industrial electrolysis *** significant degradations were observed after long-term durability tests for both *** using in two-electrode system,the operational voltages of 1.44 and 1.72 V were required to achieve a current density of 10 and 100 mA·cm^(-2) for the overall water splitting test(NiFe LDH-MoS_(x)/INF||20%Pt/C).Additionally,the operational voltage of employing NiFe LDH-MoS_(x)/INF as both cathode and anode merely require 1.52 V at 50mA·cm^(-2) at simulated industrial electrolysis ***,a membrane electrode assembly(MEA)for anion exchange membrane water electrolysis(AEMWEs)using NiFe LDH-MoS_(x)/INF as an anode catalyst exhibited an energy conversion efficiency of 71.8%at current density of 400 mA·cm^(-2)in 1 M KOH at 60℃.Further experimental results reveal that sulfurized substrate not only improved the conductivity of NiFe LDH,but also regulated its electronic configurations and atomic composition,leading to the excellent *** easy-obtained and cost-effective integrated electrodes are expected to meet the large-scale application of industrial water electrolysis.