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The standard penetration test ( SPT) is an in-situ dynamic penetration test designed to provide information on the geotechnical engineering properties of soil. This test is the most frequently used subsurface exploration drilling test performed worldwide. The test procedure is described in ISO 22476-3, ASTM D1586 [ 1] and Australian Standards ...
The South Pole Telescope (SPT) is a 10-metre (390 in) diameter telescope located at the Amundsen–Scott South Pole Station, Antarctica.The telescope is designed for observations in the microwave, millimeter-wave, and submillimeter-wave regions of the electromagnetic spectrum, with the particular design goal of measuring the faint, diffuse emission from the cosmic microwave background (CMB). [5]
Medications, medical procedures, surgery [ 5] Frequency. ~3% [ 6][ 7][ 8] Supraventricular tachycardia ( SVT) is an umbrella term for fast heart rhythms arising from the upper part of the heart. [ 2] This is in contrast to the other group of fast heart rhythms – ventricular tachycardia, which start within the lower chambers of the heart. [ 2]
In spacecraft propulsion, a Hall-effect thruster (HET) is a type of ion thruster in which the propellant is accelerated by an electric field. Hall-effect thrusters (based on the discovery by Edwin Hall) are sometimes referred to as Hall thrusters or Hall-current thrusters. Hall-effect thrusters use a magnetic field to limit the electrons' axial ...
The Substantial Presence Test (SPT) is a criterion used by the Internal Revenue Service (IRS) in the United States to determine whether an individual who is not a citizen or lawful permanent resident in the recent past qualifies as a "resident for tax purposes" or a "nonresident for tax purposes"; [ 1][ 2] it is a form of physical presence test.
Psyche (spacecraft) Psyche ( / ˈsaɪki / SY-kee) is a NASA Discovery Program space mission launched on October 13, 2023 to explore the origin of planetary cores by orbiting and studying the metallic asteroid 16 Psyche beginning in 2029. [ 8 ] NASA's Jet Propulsion Laboratory (JPL) manages the project.
Strathclyde Partnership for Transport (SPT) is a regional transport partnership for the Strathclyde area of western Scotland. It is responsible for planning and coordinating regional transport, especially the public transport system in the area, including responsibility for operating the Glasgow Subway , the third-oldest in the world.
Since 1982, STP has been defined as a temperature of 273.15 K (0 °C, 32 °F) and an absolute pressure of exactly 10 5 Pa (100 kPa, 1 bar ). NIST uses a temperature of 20 °C (293.15 K, 68 °F) and an absolute pressure of 1 atm (14.696 psi, 101.325 kPa). [ 3] This standard is also called normal temperature and pressure (abbreviated as NTP ).