NASA Thesaurus Terms Added (Monthly Update)
AUGUST 2008
Fermi Gamma-ray Space Telescope | |||
DEF lGamma-ray astronomy observatory in low-Earth orbit, comprised of the Large Area Telescope and the GLAST Burst Monitor, used to explore the extreme Universe, dark matter composition, black hole material acceleration, and the high-energy behavior of gamma-ray bursts. The observatory will also be used to investigate solar flares, pulsars, and cosmic ray origins. | |||
UF | Gamma-ray Large Area Space Telescope | ||
GLAST | |||
GS | artificial satellites | ||
. scientific satellites | |||
. . astronomical satellites | |||
. . . Fermi Gamma-ray Space Telescope | |||
observatories | |||
. astronomical observatories | |||
. . astronomical satellites | |||
. . . Fermi Gamma-ray Space Telescope | |||
telescopes | |||
. gamma ray telescopes | |||
. . Fermi Gamma-ray Space Telescope | |||
. spaceborne telescopes | |||
. . Fermi Gamma-ray Space Telescope | |||
RT | cosmic rays | ||
gamma ray astronomy | |||
spaceborne astronomy |
GRACE mission | |||
DEF lThe second mission under the NASA Earth System Science Pathfinder (ESSP) Program which maps variations in the Earth's gravity field. The mission includes two identical spacecrafts flying about 200 kilometers apart in a polar orbit 500 kilometers above the Earth. | |||
UF | Gravity Recovery and Climate Experiment mission | ||
GS | space missions | ||
. GRACE mission | |||
RT | climate change | ||
Earth atmosphere | |||
Earth gravitation | |||
geoids | |||
gravitational fields | |||
remote sensing | |||
satellite observation |
JULY 2008
animal models | |||
DEF lNon-human animals, selected because of specific characteristics, for use in experimental research, teaching, or testing. | |||
GS | models | ||
. animal models | |||
. . knockout mice | |||
RT | animals | ||
bioassay | |||
bioastronautics | |||
cytology | |||
diseases | |||
in vivo methods and tests | |||
mice | |||
pathology | |||
rats |
single electron transistors | |||
DEF lThree-terminal, solid-state, nanoelectronic switching devices that use quantum mechanical electron tunneling to control the movement of single electrons and amplify current. | |||
GS | electronic equipment | ||
. solid state devices | |||
. . semiconductor devices | |||
. . . transistors | |||
. . . . single electron transistors | |||
nanostructures (devices) | |||
. single electron transistors | |||
RT | carbon nanotubes | ||
electron mobility | |||
electron tunneling | |||
nanotechnology | |||
quantum dots | |||
quantum electronics | |||
tunnel junctions |
JUNE 2008
computational mechanics | |||
DEF lThe discipline concerned with the development and application of numerical and scientific computing methods to study phenomena governed by the principles of mechanics. | |||
GS | analysis (mathematics) | ||
. numerical analysis | |||
. . approximation | |||
. . . computational mechanics | |||
mechanics (physics) | |||
. computational mechanics | |||
RT | boundary element method | ||
computational fluid dynamics | |||
computerized simulation | |||
continuum mechanics | |||
finite element method | |||
fracture mechanics | |||
mathematical models | |||
meshfree methods | |||
solid mechanics | |||
structural analysis |
MAY 2008
Cupola Module | |||
DEF lA permanent observation and control module for the International Space Station developed by the European Space Agency. The module's windows allow line-of-sight monitoring of outside activities, including spacewalks, docking operations and exterior equipment surveys. | |||
GS | modules | ||
. space station modules | |||
. . Cupola Module | |||
RT | European Space Agency | ||
International Space Station | |||
spacecraft modules |
Kibo Japanese Experiment Module | |||
DEF lA permanent science module for the International Space Station developed by the Japanese Aerospace Exploration Agency. As Japan's primary contribution to the ISS, Kibo consists of six components, two of which are research facilities used for spaceborne experiments. | |||
GS | laboratories | ||
. space laboratories | |||
. . manned orbital laboratories | |||
. . . Kibo Japanese Experiment Module | |||
manned spacecraft | |||
. manned orbital laboratories | |||
. . Kibo Japanese Experiment Module | |||
modules | |||
. space station modules | |||
. . Kibo Japanese Experiment Module | |||
RT | International Space Station | ||
Japanese space program | |||
spaceborne experiments | |||
spacecraft modules |
meshfree methods | |||
DEF lComputational techniques that provide numerical solutions by using a set of arbitrarily distributed nodes (discretization points) and weight functions without the use of mesh or grid information in their formulations. | |||
UF | gridfree methods | ||
meshless methods | |||
GS | analysis (mathematics) | ||
. numerical analysis | |||
. . approximation | |||
. . . meshfree methods | |||
RT | computational electromagnetics | ||
computational fluid dynamics | |||
finite element method | |||
Galerkin method | |||
integral equations | |||
kernel functions | |||
magnetohydrodynamic simulation | |||
partial differential equations | |||
particle in cell technique | |||
plasma dynamics | |||
solid mechanics | |||
weighting functions |
APRIL 2008
meshfree methods | |||
DEF lComputational techniques that provide numerical solutions to integral equations or partial differential equations using a set of arbitrarily distributed nodes without the use of mesh or grid discretization of the domain or its boundary. | |||
UF | gridfree methods | ||
GS | analysis (mathematics) | ||
. numerical analysis | |||
. . approximation | |||
. . . meshfree methods | |||
RT | computational fluid dynamics | ||
finite element method | |||
Galerkin method | |||
integral equations | |||
kernel functions | |||
partial differential equations | |||
stress analysis | |||
structural analysis |
risk management | |||
DEF lAn organized, systematic process that identifies, analyzes, tracks, controls, communicates and documents risks to increase the likelihood of achieving success. | |||
GS | management | ||
. risk management | |||
RT | accident prevention | ||
decision making | |||
project planning | |||
risk assessment | |||
safety management |
MARCH 2008
lessons learned | |||
DEF lKnowledge or understanding gained by experience. The lesson must be significant in that it has real or assumed impact on operations; valid in that it is factually and technically correct; and applicable in that it identifies a specific design, process, or decision that reduces or eliminates the potential for failures and mishaps, or reinforces a positive result. | |||
GS | knowledge | ||
. lessons learned | |||
RT | accident investigation | ||
accident prevention | |||
accidents | |||
documentation | |||
experience | |||
failure analysis | |||
mission planning | |||
quality control | |||
reliability engineering |
risk assessment | |||
DEF lThe identification, evaluation, and estimation of the levels of risks involved in a situation, their comparison against benchmarks or standards, and determination of an acceptable level of risk. | |||
GS | assessments | ||
. risk assessment | |||
RT | decision making | ||
evaluation | |||
failure analysis | |||
hazards | |||
predictions | |||
risk |
FEBRUARY 2008
There were no new terms.
JANUARY 2008
There were no new terms.