(redirected from Peak Particle Velocity)
PPVPay Per View
PPVPositive Predictive Value (parameter of diagnostic examination in medicine)
PPVPoints Plus Value (Weight Watchers)
PPVPoly (Phenylene Vinylene)
PPVPositive Pressure Ventilation
PPVPars Plana Vitrectomy
PPVPlum Pox Virus
PPVPeak Particle Velocity (mining)
PPVPorcine Parvovirus
PPVPago por Ver (Spanish: Pay per View)
PPVPneumococcal Polysaccharide Vaccine
PPVPolice Pursuit Vehicle
PPVPulse Pressure Variation
PPVPublic-Private Venture
PPVPurchase Price Variance
PPVPower Point Viewer
PPVProportioning Valve
PPVPlanned Product Value
PPVPolice Package Vehicle
PPVPublic Passenger Vehicle (legal classification; various locations)
PPVPeak-to-Peak Voltage (electricity)
PPVPerturbation Projection Vector
PPVPick-Up Passenger Vehicle
PPVPneumococcal Pneumonia Vaccine
PPVPedal-Powered Vehicle
PPVPer Page View (web site services billing)
PPVPrivate Passenger Vehicle
PPVProduct Price Variance (economics)
PPVPages Per Visitor
PPVProfessionele Project Verhuizers (Dutch brand for professional usiness movers)
PPVPeople Powered Vehicle
PPVPre Production Verification
PPVPatent Procesus Vaginalis
PPVParent Path Vector
PPVProduct Platform Validation (software/hardware)
PPVPost Production Verification (software development)
PPVPower Price Vector
PPVPoint of Peak Velocity
PPVPrice Point Variance (financial management)
PPVProduct/Process Validation Vehicle (General Motors automotive)
References in periodicals archive ?
1) located close to the tested roof support induced peak particle velocity weighted over 25 Hz, [PPV.
Butler and van Aswegen (1993) presented some data, for the gold mines in South Africa, indicating that the peak particle velocity (PPV) in the near field can exceed the value of 10 m/s (probably related to the ejection velocity of rock).
P]--amplitude of the peak particle velocity (longitudinal wave), m/s.
In addition to these improvements, Type 2250 and Type 2270 portable sound level and vibration meters have been updated to measure peak particle velocity and vibration criteria.
17), this leads to a = 3v, where v is the nominal particle velocity (the velocity that the particle would have if the charge did not flow), indicating that the peak particle velocity in a solitary wave is three times higher than the nominal particle velocity.
The peak particle velocity values obtained by integration of the accelerometer data show consistently higher amplitudes than those obtained with direct geophone recordings, despite both geophones and accelerometers placed in the same location.
In most cases the peak particle velocity derived from accelerometer data greatly exceeds those obtained by geophone recordings.
The more serious observation is the fact that for the same charge weight per delay and distance, the peak particle velocity obtained from accelerometer recording is often greater than by a factor of two compared to peak particle velocity obtained with geophone recording.
According to [8] admissible peak particle velocity for supporting by the timbering, strengthened by anchors, is 0.
In USSR standards for underground constructions with service life t up to 4-10 years the critical peak particle velocity is no more than 0.
1990, Peak particle velocity for rockbursts in some Ontario mines, Proc.
Estimation of blast induced peak particle velocity at underground mine structures originating from neighbouring surface mine