Abstract: This paper describes the design of a front-end circuit consisting of an integrated preamplifier with a Sallen-Key Butterworth filter for very-high-frequency ultrasonic transducers and a ...

因数字签名到期暂未续费，该版本可能被杀毒软件误报需手动加一下白名单 因升级 .NET 9.0 Windows 的 TFM 发生一些变动，导致 Windows 版本运行环境体积增长了 30MB (程序体积并非内存！) 如有任何加速问题需私信我反馈请说明具体状况并带上【加速日志】 一并反馈 ...

يقع هذا المنظر الثقافي على سفح جبل إسبينيو، المهيمن على مدينة براغا شمال البرتغال، ويجسّد الموقع روح مدينة القدس المسيحية ويتألف من جبل مقدّس تعلوه كنيسة. استغرق بناء الكنيسة المصممة على ...

Abstract: We fabricated an antireflection (AR)-coating-free semiconductor optical amplifier (SOA) with an absorbing region for an optical preamplifier. In the fabricated SOA, the resonance of light ...

在音响设备的选择上，ROTEL的功放系列一直以来都备受关注。尤其是RC-1572MKII和RB-1582MKII这两款产品，因其卓越的性能和高性价比而成为了众多音响爱好者的热门选择。然而，面对这两款定位不同的功放，许多消费者常常感到困惑：究竟该选择哪一款更为实用呢？

An illustration of a magnifying glass. An illustration of a magnifying glass.

Over the years, Medanta has developed strong capabilities in managing complex and high-risk cases, reflected in a well-diversified revenue mix. In FY25, the top five specialties, cardiac/oncology/ ...

This paper investigated the fatigue properties and theoretical research on Carbon-Fiber-Reinforced Polymer (CFRP) RC bridge roof with new deck-pavement material. Two deck pavement schemes of ...

The 2025 NFL season is nearly 30 percent complete, as teams are playing their fifth game of a 17-game season during Week 5. While some notable teams have stumbled out of the gates, a select few ...

The director of the presidential library and museum in Abilene, Kansas, said he was suddenly told to resign or be fired. He refused to give the Trump administration a historic sword from the museum’s ...

If you’re building a hi-fi system, amplification is a necessary cog in the chain. While your source (turntable, streamer etc) plays your music and your speakers output it, the middle-man amplifier ...

Jessica Gibson is a content update editor and writer for Investopedia. She has over 10 years of experience in digital publishing and three years of experience covering financial topics like insurance, ...