A 4-8 GHz Quasi-MMIC IF Amplifier for a 690 GHz SIS Receiver
A 4-Component Dirac Theory of Ionization of Hydrogen Molecular Ion in a Super-Intense Laser Field
A 4-meter Telescope for the US Air Force Academy
A 4-meter wide field coronagraph space telescope for general astrophysics and exoplanet observations
A 4-neutrino model with a Higgs triplet
A 4-unit-cell superstructure in optimally doped YBa2Cu3O6.92 superconductor
A 4.0 B. Y. Impact Metamorphism Age of the Modoc L6 Chondrite
A 4.3 Aeon Pre-Imbrium Event
A 4.4-gram, Mostly Metal Rock from Apollo 14 with Attached, Cogenetic Silicates
A 40 -K 40 dating
A 40-Million-Year Lake Record of Early Mesozoic Orbital Climatic Forcing
A 400 km Scale Strike-Slip Zone near the Boundary of Thetis Regio, Venus
A 40th deg and order gravitational field model for Mars
A 40th Degree and Order Gravitational Field Model for Mars
A 430.5 GHz Quasi-Optical HBV Frequency Tripler
A 45-m telescope with a surface accuracy of 65 μm.
A 48-kyr-long slip rate history for the Jordan Valley segment of the Dead Sea Fault
A 4D geometrical modeling of a material aging
A 4th Century Babylonian Model for Venus: B.M. 33552
A 4th generation scenario