搜索结果: 1-6 共查到“理学 Sound waves”相关记录6条 . 查询时间(0.042 秒)
Sound waves create whirlpools to round up tiny signs of disease
Sound waves create whirlpools tiny signs of disease
2017/2/16
Mechanical engineers at Duke University have demonstrated a tiny whirlpool that can concentrate nanoparticles using nothing but sound. The innovation could gather proteins and other biological structu...
With more than 800,000 miles of sewer pipes in the United States, wastewater utilities tasked with keeping those pipes clear have their work cut out for them.Now, a small business has developed a quic...
Researchers from MIT, Pennsylvania State University, and Carnegie Mellon University have devised a new way to separate cells by exposing them to sound waves as they flow through a tiny channel. Their ...
Explicit analytic solution for the nonlinear ion sound waves equation
Homotopy Analysis Method Plasma Physics
2010/9/21
In this article, we use an ecient analytical method called homotopy analysis method (HAM) to derive an approximate solution of nonlinear ion sound waves equation. Actually, we solved Korteweg-de Vrie...
High frequency ion sound waves associated with Langmuir waves in type III radio burst source regions
High frequency ion sound waves Langmuir waves type III radio burst source regions
2009/11/11
Short wavelength ion sound waves (2-4kHz) are detected in association with the Langmuir waves (~15-30kHz) in the source regions of several local type III radio bursts. They are most probably not due t...
May 29, 2007，Sound waves escaping the sun’s interior create fountains of hot gas that shape and power a thin region of the sun’s atmosphere which appears as a ruby red "ring of fire" around the moon d...