Although there is great versatility of ultrasound (US) technologies in the real clinical field, one main technical challenge is the compromising of high quality of echo properties and size engineering of ultrasound contrast agents (UCAs); a high echo property is offset by reducing particle size.
More importantly, Gas-NPs could be readily engineered to strengthen the desirable in vivo physicochemical properties for nano-sized drug carriers with higher tumor targeting ability, as well as the high quality of echo properties for tumor-targeted US imaging.
But in a dissent that echoed what property rights activists were saying, Justice Sandra Day O'Connor wrote: "The specter of condemnation hangs over all property.
Moreover, echo problem in the conferencing system is observed and a delayless subband AEC is used to cancel acoustic echo.
His words echo on in my mind.
Echo Hill is a four-hundred-acre property in the Texas Hill Country, about an hour and a half west of Austin.
This intriguing example echoes most interestingly the studies on housing and politics of property in colonial Singapore and Hong Kong by Jiat-Hwee Chang and Cecilia Chu, and that on urban planning in India by Stephen Legg.
Those worries echo in France.
echo You awaken in an underground cavern.
