Acoustic Transmission
Determining Crack Tip Shielding by Means of Acoustic Transmission and Diffraction Measurements
... We have now succeeded in using experimental information, obtained under plane strain conditions from acoustic transmission and diffraction experiments in the closure region [1,2] to dete[r] ...
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Acoustic transmission properties of pressurised and pre stressed composite structures
... The term σ(θ, φ, ω) is the corrected radiation efficiency term, which was used so that to account for the finite dimensions of the panel by accounting for the radiation of the mass controlled non-resonant modes, and it ...
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Acoustic transmission techniques in the development of porosity and osteoporosis measurement systems
... analysis has shown that for the 1% incremental changes (e.g. 0% to 1%) the variances in the data sets are equal in 6, and unequal in 9. Subsequent t- tests assuming either equal or unequal variance depending on f-test ...
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Acoustic transmission through the head of the common mole, Talpa europaea
... Relative sound pressure levels A, and phases B, recorded internal and external to the tympanic membrane at a frequency of i-6 kHz as the sound source was rotated through 360° azimuth[r] ...
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Effects of Imperfect Interfaces on Acoustic Transmission and Diffraction
... Thus, the appl~ed stress intensity range, AK = K1max - KI~in will have to be modified to include the effects of crack t~p shield~ng [1,5], leading to an effective stress intensity range,[r] ...
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Transmission of Terahertz Acoustic Waves through Graphene Semiconductor Layered Structures
... coherent acoustic waves in terahertz (10 12 Hz or THz) frequency range from different semiconductor systems ...an acoustic band-gap and to study high-frequency elastic properties of the constituent material ...
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Review Article: Multicarrier Communication for Underwater Acoustic Channel
... real-time transmission of compressed ...video transmission over short horizontal acoustic links was addressed in [109] where the standard MPEG- 4 video compression technique and a wavelet-based me- ...
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A New Alternative Method for the Generation of Acoustic Filters, Modulating Acoustic Impedance: Theoretical Model
... and acoustic filters is an active field. In the area of acoustic, studies by Rayleigh opened an in- terest in the exploration of sound ...a transmission line and filtered the signals through simple ...
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... power transmission on the double-walled laminated composite cylindrical shells along with air-gap was proposed applying three-dimensional equations of anisotropic ...sound transmission of the structure ...
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DESIGN VALIDATION OF THE EXISTING MUFFLER’S TRANSMISSION LOSS RESULTS WITH ACOUSTIC SIMULATION TOOL
... the transmission loss of an Acoustic ...of Transmission Loss of ...(IL), Transmission Loss ...is transmission loss (TL) ...the transmission losses can be determined reliably with ...
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Porous silicon bulk acoustic wave resonator with integrated transducer
... the acoustic transmission band gap measured for the PSi ADBR consisting of 30 pairs of layers on the Si substrate with an unpolished back- side, before deposition of the actuator ...longitudinal ...
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Datapro C25 010 198501 pdf
... TRANSMISSION PARAMETERS Mode Technique Communications protocol Code Speed, bits/second Format Multipoint operation Terminal interface Integral modem Integral acoustic coupler PRICING AND[r] ...
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Routing Protocols for Underwater Wireless Sensor Networks
... the acoustic signals are used for communication among nodes because the radio signal works with additional low frequency and it cannot travel far away in ...
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The evolution of communication in a complex acoustic environment
... 1983) acoustic dispersion have found differences in syntopic species’ signals but have not conclusively supported acoustic competition as the cause of signal ...in acoustic signal features, spatial ...
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WIRELESS DIGITAL STETHOSCOPE USING BLUETOOTH TECHNOLGY
... Stethoscopes are used regularly by medical personnel to listen to acoustic signals picked from the internal parts of the human body during diagnosis and treatment of patients. Typically, signals that are picked ...
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Detecting Threats of Acoustic Information Leakage Through Fiber Optic Communications
... which generates an analog signal from the regular radia- tion that can be modulated by an acoustic frequencies. Se- lection of irregular radiation is recorded and converted to its own receiver to an analog signal. ...
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Datapro C25 010 198604 pdf
... TRANSMISSION PARAMETERS Mode Technique Communications protocol Code Speed, bits/second Format Multipoint operation Terminal interface Integral modem Integral acoustic coupler PRICING AND[r] ...
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A New Method to Improve Performance of Cooperative Underwater Acoustic Wireless Sensor Networks via Frequency Controlled Transmission Based on Length of Data Links
... underwater acoustic (UWA) sensor net- works will be ...Cooperative transmission, transmitter sends one copy of transmitted data packets to relay ...sub-optimizing transmission frequency based on link ...
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Datapro C25 010 198702 pdf
... TRANSMISSION PARAMETERS Mode Technique Communications protocol Code Speed, bits/second Format Multipoint operation Terminal interface Integral modem Integral acoustic coupler PRICING AND[r] ...
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Design of a High Frequency Driving Circuit of Surface Acoustic Wave Transducer
... surface acoustic wave trans- ducer has been designed to separate oil from oil/water mixed ...The transmission frequency of the surface acoustic wave transducer driving circuit can be up to 1 ...
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