The descent will be very slow in order to minimize thruster firings prior to contact in order to reduce the likelihood of asteroid surface contamination by unreacted hydrazine propellant.
32.
A rub like that transfers about 1 percent of the surface contamination to the hand, said David Camann, a statistician at the Southwest Research Institute in San Antonio, Texas.
33.
For this reason, coating is far more effective if all surface contamination is removed first, using a highly repeatable industrial process such as vapor degreasing or semi-aqueous washing in a special machine.
34.
You need to know " what " the projectile kinetic energy is converted to, into what volume it is deposited, what kind of atmospheric and surface contamination it produces, and how that contamination spreads and decays.
35.
Mark Henkhaus, the TRC district director in Midland, said the commission had been trying to compel Pharaoh Oil & Gas to clean up some surface contamination by " hammering them as hard as we can ."
36.
Scabbling is used to remove road markings, surface contamination ( used in the nuclear industry ), to add a decorative or textured pattern to concrete, or to prepare a concrete surface prior to the installation of grout.
37.
Mark Henkhaus, the TRC district director in Midland, said the commission had been trying to compel Pharaoh Oil & AMP; Gas to clean up some surface contamination by " hammering them as hard as we can ."
38.
Several modern methods probe the topmost 1 10 nm of pascal pressure or better, it is necessary to reduce surface contamination by residual gas, by reducing the number of molecules reaching the sample over a given time period.
39.
In water, broad electron beams, as is the case in homogeneous surface contamination of skin, have d 80 about E / 3 cm and R p about E / 2 cm, where E is the beta particle energy in MeV.
40.
Pettitt and Bahn also contended that the dating is inconsistent with the traditional stylistic sequence and that there is uncertainty about the source of the charcoal used in the drawings and the extent of surface contamination on the exposed rock surfaces.
