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Static light scattering is a technique in physical chemistry that measures the intensity of the scattered light to obtain the average molecular weight Mw of a macromolecule like a polymer or a protein in solution. Measurement of the scattering intensity at many angles allows calculation of the root mean square radius, also called the radius of ...

The Space Launching System, or Space Launcher System, ( SLS ), was a 1960s-era design program of the US Air Force [1] for a family of launch vehicles based around a set of common components. After a series of studies in the late 1950s, the Air Force had concluded that the maximum efficiency would be gained by using only liquid hydrogen fuel for ...

List of Space Launch System launches. Configurations of the Space Launch System – Block 1 with the ICPS, Block 1B with the EUS, and Block 2 with upgraded boosters and larger payload fairing. As of January 2022, five flights of the Space Launch System (SLS) – a Shuttle-derived, super heavy-lift expendable launch vehicle – have been ...

Selective laser sintering ( SLS) is an additive manufacturing (AM) technique that uses a laser as the power and heat source to sinter powdered material (typically nylon or polyamide ), aiming the laser automatically at points in space defined by a 3D model, binding the material together to create a solid structure [1] [2] [3].