Rotating sound sourcesSupersonic rotational velocityAcoustic intensity fieldAdvanced time approachChristof OckerAalen University of Applied Sciences, 73430 Aalen, GermanyWolfram PannertAalen University of Applied Sciences, 73430 Aalen, Germany声学学报声学学报...
Active nematics are driven, non-equilibrium systems relevant to biological processes including tissue mechanics and morphogenesis, and to active metamaterials in general. We study the three-dimensional spontaneous flow transition of an active nematic in
To overcome the beamforming limitations, variants of beamforming have been introduced; examples include compressive-sensing beamforming. Compression sensing theory states that if the signal is sparse or compressible, it can be sampled at a sampling rate far lower than the Nyquist standard. When the...
Learning piano with Skoove is a great way to practice with timbre, texture, and tone. Skoove’s lessons are rich with examples of various piano timbres, homophonic and polyphonic textures, and tones from joyful and exciting to solemn and introspective. Explore the world of piano with Skoove an...
His father was an importer of tools and other goods. His mother was a painter. Window got his interest in drawing and painting from his mother. But his father also supported his son's interest. Once, on a business trip to London, Charles Homer bought a set of drawing examples for his ...
Wave steering examples — (a,b) Panels show different examples of high-transmission wave steering. Notably, in each of these cases the long-scale envelope is discernible, and more importantly, the wavelengths of these envelopes is entirely contained within the first lead thereby allowing for near...
C. By giving examples. D. By questioning the points. 免费查看参考答案及解析 题目: It's three years ___my brother joined the army and it will be ten days ___he comes back to see our parents. A. when; after B. since; when C. before; until D. since; before 免费查看参考答案...
Which of the following is true of Jae Kwon? A. He teaches chemistry at MU. B. He developed a chemical battery. C. He is working on a nuclear energy source. D. He made a breakthrough in computer engineering. Jae Kwon gave examples in Paragraph 4___. A. to show...
(b) Examples of 2D nanomagnets, from left to right: Single-domain magnet. Magnetic multi-layered element with perpendicular anisotropy. Nanostrip with protrusions for DW trapping. Bi-layered magnet with AF coupling due to indirect exchange via an interlayer (not shown for clarity). characterization...
The key challenge today is to start showing by pioneering examples that nations, cities, industries can reduce emissions so as to improve their economic condition and to let a global regime leading to near-zero emissions evolve as a complex, multi-level system combining global agreements with regi...