For the polymer with Young's modulus of 1.0 MPa, average vary rate of resonance wavelength with pressure of 1.75 × 103 nm/MPa can be obtained.
External color light cycling at the wavelength of blood pressure oscillations appears to amplify the endogenous autonomic oscillations.
Required mesh size is typically one eighth of the wavelength of the pressure fluctuation on the model surface.
These measurements demonstrated clearly that the velocity distribution function and current signals depend on laser power, laser wavelength and argon pressure.
A PrevailTM Organic Acid column (250 mm × 4.6 mm) was used with the detection conditions: temperature, 40 °C; wavelength, 217 nm; pressure, 0.1-4,000 psi.
When cells or particles suspended in fluid are exposed to ultrasound of wavelength, λ, and pressure amplitude, P0, they experience an acoustic radiation force, FAcoustic, described in Eq. 1.
The primary acoustic radiation forces that act on any particle in the SSAW field can be expressed as 1 2where p0, λ, Vp, k, x, ρp, ρm, βp, and βm are the acoustic pressure, wavelength, volume of the particle, wave vector, distance from a pressure node, density of the particle, density of the medium, compressibility of the particle, and compressibility of the medium, respectively.
This is the first part of the two articles reporting investigation of a thermal detector-type far-infrared sensor operating in the 8 14 μm wavelength, using Low-Pressure-Chemical-Vapor-Deposition (LPCVD -deposited LPCVD -depositedch nitride (SiN) membrane as the thermal absorber.
The dependence of the current signals on various parameters, such as laser power, laser wavelengths and argon (Ar) pressure, is described.
Then acoustic testing demonstrated an acoustic pressure-induced wavelength shift of 0.041 nm/Pa and a noise equivalent acoustic signal level of ∼1.66 mPa/Hz1/2 in the frequency region around 2.5 kHz.
Peterson and Bogert [ 111] and Lighthill [ 125] discuss a quarter wavelength resonance in the mean pressure component, but this is associated with a pressure source driving the cochlea as a closed duct, in order to match the pressure release boundary condition at the round window.
