Ultracompact H II Regions Formed by Gravitational Collapse in Expanding Shells of Larger H II Regions

Ultrafast applications of uni-traveling-carrier photodiodes from measurement to signal processing

Ultrafast photodetectors with near-unity quantum efficiency

Ultrafast quantum well infrared photo detector

Ultrahigh dimensional variable selection: beyond the linear model

Ultrahigh resolution absolute Cartesian electronic autocollimator

Ultrahigh-energy pulsed emission from Hercules X-1 with anomalous air-shower muon production

Ultralight dust wiper mechanism for operation in Mars

Ultralight inflatable fresnel lens solar concentrators

Ultralow-noise infrared focal plane array status

Ultrametric Wavelet Regression of Multivariate Time Series: Application to Colombian Conflict Analysis

Ultrarelativistic hydrodynamics - High-resolution shock-capturing methods

Ultrasonic imaging of a beat-culture icon

Ultrasonic Imaging of an Object with Complicated Shape at the Presence of Fourier and Non-Fourier Series in the Transmitted through the Object Acoustic Field

Ultrasonic investigation of melts in the system Na 2 O---Al 2 O 3 ---SiO 2

Ultrasonic/sonic driller/corer as a hammer-rotary drill

Ultrasonic/sonic gopher for subsurface ice and brine sampling: analysis and fabrication challenges and testing results

Ultrathin Amorphous Coatings on Lunar Dust Grains

Ultratrace analysis of calcium with high isotopic selectivity by diode laser resonance ionization mass spectrometry

Ultratrace determination of long-lived radioactive isotopes