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MICROGRAVITY ENVIRONMENT [26 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2021-01-29

English

Subject field(s)
  • Orbital Stations
CONT

A permanently attached multipurpose laboratory module, located so as to contain the optimum microgravity environment of the [International] Space Station payload accommodations, with complete basic functional outfitting, including accommodations for international standard payload racks and provisions for storage of NASA spares and secondary storage of crew provisions.

Key term(s)
  • multi-purpose laboratory module

French

Domaine(s)
  • Stations orbitales

Spanish

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Record 2 2008-06-11

English

Subject field(s)
  • Scientific Research Facilities
  • Research Experiments in Space
  • Mammals
CONT

The Rhesus Research Facility(RRF) is a research environment designed to study the effects of microgravity using rhesus primates as human surrogates.

OBS

NASA [National Aeronautics and Space Administration]. Planned for Spacelabs 3 & 4.

French

Domaine(s)
  • Installations de recherche scientifique
  • Travaux de recherche dans l'espace
  • Mammifères

Spanish

Campo(s) temático(s)
  • Instalaciones de investigación científica
  • Trabajos de investigación en el espacio
  • Mamíferos
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Record 3 2008-04-17

English

Subject field(s)
  • Space Physics
  • Scientific Research Methods
  • Physics of Solids
CONT

The Binary Colloidal Alloy Test-3 is an Exploration Systems’ transition flight experiment in the Human System Research and Technology area. BCAT-3 provides a unique opportunity to explore fundamental physics and simultaneously develop important future technology, including computers operating on light, complex biomolecular pharmaceuticals, clean sources of geothermal power, and novel rocket engines for interplanetary travel. These studies depend entirely on the microgravity environment provided by the International Space Station(ISS) ;in all other locations accessible to science, gravity dominates and precludes investigation of any other effects of interest. The experiment itself [consists of] photographing samples of colloidal particles with a digital camera onboard the ISS. Colloids are tiny nanoscale spheres of plexiglass a thousand times smaller than the width of a human hair(submicron radius) that are suspended in a fluid. They are ubiquitous(e. g., milk, smoke, and paint) and therefore interesting to study directly. Colloids are also small enough that they behave much like atoms and so can be used to model all sorts of phenomena because their size, shape, and interactions can be controlled. The 10 samples in BCAT-3 are made from the same ingredients, each a recipe with different proportions, and are grouped into three experiments : critical point, binary alloy, and surface crystallization. [Text followed by an illustration of a BCAT-3 sample holder. ]

CONT

BCAT-3 is comprised of three separate experiments, which are individually referred to as a binary alloy(BCAT-3-BA), surface crystallization(BCAT-3-SC) and critical point(BCAT-3-CP). The critical point investigation is continuing with additional samples on future ISS [International Space Station] expeditions and will be referred to as Binary Colloidal Alloy Test-4. BCAT-4 will consist of two sets of samples referred to as BCAT-3 and 4 : Critical Point(BCAT-3-4-CP) and BCAT-4 : Polydisperse(BCAT-4-Poly).... The Binary Colloidal Alloy Test-3(BCAT-3) hardware supported three investigations in which ISS crews photographed samples of colloidal particles(tiny nanoscale spheres suspended in liquid) to document liquid/gas phase changes, growth of binary crystals, and the formation of colloidal crystals confined to a surface. Colloids are small enough that in a microgravity environment without sedimentation and convection, they behave much as atoms and so can be used to model all sorts of phenomena because their size, shape, and interactions can be controlled. The BCAT-3 payload consists of ten small samples of colloid alloys in which the microscopic colloid particles are mixed together into a liquid. These ten samples are contained within a small case that is the size of a school textbook. At the start of an experiment run, all ten samples are shaken to completely remix the colloid samples, much in the same way that salad dressing must be shaken to remix oil and vinegar. After the samples are mixed, what remains is periodically photographed using a digital camera until the colloid and liquid components of those samples have separated or the polymers have formed crystals. The samples can be remixed to repeat the experiment. The ten samples in BCAT-3 were selected as part of three separate experiments examining different physical processes : critical point, binary alloys, and surface crystallization.

French

Domaine(s)
  • Physique spatiale
  • Méthodes de recherche scientifique
  • Physique des solides
OBS

Contexte: recherches en microgravité sur les structures colloïdales; test avec alliages binaires (c'est-à-dire composés de deux éléments) mis à l'état colloïdal.

OBS

test BACT (croissance d'alliages binaires à partir de particules colloïdales en suspension) : il faut articuler le syntagme pour rendre compte de la réalité du texte où il est question de la croissance de cristaux binaires qui se développent à partir de particules colloïdales en suspension dans un liquide.

Spanish

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Record 4 2007-03-17

English

Subject field(s)
  • Launching and Space Maneuvering
DEF

The flight path followed by spacecrafts in creating a microgravity environment(the shape of a parabola).

French

Domaine(s)
  • Lancement et manœuvres dans l'espace
DEF

Phase de vol, pendant laquelle un aéronef suit une trajectoire parabolique permettant de simuler une chute libre dans le vide et d'obtenir un état d'impesanteur pendant un intervalle de temps de l'ordre de quelques dizaines de secondes.

Spanish

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Record 5 2004-11-09

English

Subject field(s)
  • Spacecraft
CONT

Solar Thermal Propulsion(STP)... uses large area deployable concentrators to focus the Sun's energy on a small heat exchanger, called an absorber, which is cooled by hydrogen gas propellant. The absorber transfers the concentrated heat energy from the Sun to the hydrogen gas. As the gas is heated, it expands and is directed outward through a nozzle. This expanding gas provides enough thrust in the microgravity environment of low earth orbit to transfer the vehicle to a higher energy, geosynchronous orbit around the Earth where the satellite operates.

French

Domaine(s)
  • Engins spatiaux
DEF

Mode de propulsion solaire dans lequel l'énergie solaire sert à porter à haute température un agent propulsif.

Spanish

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Record 6 2004-11-09

English

Subject field(s)
  • Orbital Stations
  • Research Experiments in Space
CONT

... DECLIC is a new, modular, multi-user facility currently being designed and built by the French Space Agency, CNES, for use aboard the International Space Station. This facility is being designed to conduct microgravity investigations in critical phenomena and directional solidification of transparent alloys. Specifically, DECLIC will accommodate chemical-physical studies of supercritical pure fluids with a critical temperature lower than 100°C and a critical pressure lower than 100 bar... and supercritical pure fluids and solutions with a critical temperature lower than 600°C and a critical pressure lower than 500 bar... It will also accommodate microgravity investigations in morphological stability at the solid/liquid interface during crystal growth in transparent alloys. In addition, investigations in condensed matter physics requiring a long term microgravity environment can also take advantage of the capabilities offered by DECLIC.

OBS

material sciences and fluid physics facility; DECLIC: term and abbreviation officially approved by the International Space Station official approval Group (ISSOAG).

Key term(s)
  • materials science and fluid physics facility
  • material science and fluid physics facility

French

Domaine(s)
  • Stations orbitales
  • Travaux de recherche dans l'espace
CONT

Déclic [est un] instrument de recherche en microgravité [qui] sera installé sur [la Station spatiale internationale] en 2004. Des expériences sur les processus de solidification des matériaux et sur les fluides critiques et supercritiques seront ainsi effectuées.

CONT

L'instrument DÉCLIC (Dispositif pour l'Étude de la Croissance et des Liquides Critiques) est la poursuite de Alice II sur MIR. Il s'agit d'un minilaboratoire intégré comportant des diagnostics optiques et thermodynamiques ainsi que des thermostats haute pression et haute température. Il sera installé dans le module américain Destiny [...] Ces études tiendront une place de premier plan dans le génie des procédés de demain avec la combustion dans l'eau, la destruction des déchets à basse température, l'élaboration de poudres ou de céramiques ou encore la dépollution des sols.

OBS

instrument d'étude des phénomènes critiques et de la solidification directionnelle des alliages transparents; instrument DÉCLIC : termes uniformisés par le Groupe de travail de la terminologie de la Station spatiale internationale (GTTSSI).

Spanish

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Record 7 2004-01-27

English

Subject field(s)
  • Spacecraft
  • Research Experiments in Space
CONT

The Insect Habitat (IH) was designed to support a variety of insect species. However, during the initial flight increments, it will be dedicated to experiments using Drosophila melanogaster, or fruit flies. The Insect Habitat will enable studies of the fruit fly to learn how microgravity affects development, nervous system function, movement and behavior, growth, reproduction, aging, gene expression, mutagenesis from radiation and circadian rhythms or sleep/wake cycles.

CONT

The IH will support single-and multi-generation experiments that have approximate external dimensions of 13. 5 cm(L) x 2. 25 cm(D) x 7. 0 cm(H) each. The flies will live in two chevron-shaped container elements. These containers can be divided into two parts using the internal food cylinders; this yields two 55 ml containers that can support up to 100 Drosophila through to egg-laying. Alternatively, the containers can be left undivided, which yields a single 110 ml volume that supports up to 200 Drosophila.... The two insect containers reside in the science element portion of the IH. The science element consists of two environmentally controlled "drawers. "Each drawer contains a centrifuge that can provide up to 2G. Each centrifuge will hold six insect containers. Typically, one drawer will have a microgravity environment and the other drawer will have a defined gravity environment, although the precise gravity regimen for each centrifuge can be determined by the researcher.

CONT

Insect Habitat (IH) for Space Station - The Insect Habitat System consists of a Transport Element, Science Element and an Insect Container Element.

OBS

Habitats in the Space Station Fundamental Biology Research Facility (SSFBRF) enable studies on a variety of organisms across multiple science disciplines. They allow scientists to conduct experiments in habitats that are similar in design to those that have been used in labs for ground studies. Each habitat provides life support, environmental control, and monitoring systems and can be housed in one or more of the three major host systems: the Centrifuge, Life Sciences Glovebox, and Habitat Holding Rack. This hardware was designed to automate as much as possible, thus providing maximizing science return while requiring minimal crew time.

OBS

insect habitat; IH: term and abbreviation officially approved by the International Space Station official approval Group (ISSOAG).

French

Domaine(s)
  • Engins spatiaux
  • Travaux de recherche dans l'espace
CONT

[...] le Compartiment canadien pour insectes devant être lancé à destination de l'ISS en 2004.

CONT

Le laboratoire pour insectes (Insect Habitat Facility) subira quant à lui des essais rigoureux ici sur Terre en vue de son lancement à bord de l'ISS [International Space Station] au milieu de 2005.

OBS

compartiment canadien pour insectes; IH : terme et abréviation uniformisés par le Groupe de travail de la terminologie de la Station spatiale internationale (GTTSSI).

Spanish

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Record 8 2004-01-27

English

Subject field(s)
  • Research Experiments in Space
DEF

An apparatus consisting of a slowly revolving disk, usually regulated by clockwork, by means of which the action of external agents, as light and gravity, on growing plants may be regulated or eliminated.

CONT

The Clinostat has been used by biologists for over a hundred years to study how organisms might adapt to the microgravity environment and what effects the force of gravity has on plant and animal development and behavior. The clinostat is a simple device which places a plant, a small organism, or cell growing in culture on a rotating platform. The rotation causes the biosystem under test to be subjected to the gravity vector from "all" directions. From the system's point of view, the rotation cancels the gravity vector by continuous averaging thus approximating the highly reduced vector found in the actual space environment.

French

Domaine(s)
  • Travaux de recherche dans l'espace
DEF

Petite centrifugeuse de laboratoire utilisée pour soumettre des organismes vivants à des conditions de pesanteur particulières.

PHR

Clinostat horizontal rapide.

Spanish

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Record 9 2003-12-22

English

Subject field(s)
  • Orbital Stations
  • Research Experiments in Space
CONT

[The] Low Temperature Microgravity Physics Facility... LTMPF is a liquid helium dewar with attached electronics that will house two instrument inserts, keeping them cooled below 2 Kelvins for six months. The facility permits real-time monitoring of the data and allows transmission of commands for telescience operations. Precision sensors of temperature, pressure, and acceleration, modified to function well in the cosmic ray environment of Earth orbit, are supplied as parts of this facility.

OBS

low temperature microgravity physics facility; LTMPF: term and abbreviation officially approved by the International Space Station official approval Group (ISSOAG).

French

Domaine(s)
  • Stations orbitales
  • Travaux de recherche dans l'espace
OBS

enceinte de physique microgravitaire à basse température; LTMPF : terme et abréviation uniformisés par le Groupe de travail de la terminologie de la Station spatiale internationale (GTTSSI).

Spanish

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Record 10 2003-12-08

English

Subject field(s)
  • National Bodies and Committees (Non-Canadian)
  • Space Centres
OBS

The NASA Lewis Research Center Principal Investigator Microgravity Services(PIMS) project supports microgravity principal investigators’ efforts to evaluate acceleration effects on their experiments... PIMS is part of the Microgravity Measurement and Analysis Project(MMAP) which integrates the PIMS with five other activities focused on the measurement and analysis of the microgravity environment in support of microgravity science investigators.

OBS

Principal Investigator Microgravity Services; PIMS: term and abbreviation officially approved by the International Space Station official approval Group (ISSOAG).

Key term(s)
  • Principal Investigator Microgravity Service

French

Domaine(s)
  • Organismes et comités nationaux non canadiens
  • Centres spatiaux
OBS

Service d'appui aux chercheurs principaux en microgravité; PIMS : terme et abréviation uniformisés par le Groupe de travail de la terminologie de la Station spatiale internationale (GTTSSI).

Spanish

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Record 11 2003-10-09

English

Subject field(s)
  • Orbital Stations
  • Research Experiments in Space
CONT

Aquatic Animal Experiment Facility(AAEF). The AAEF is a sub-rack facility that will accommodate freshwater and saltwater organisms(such as Medaka fish) inside the JEM environment. The facility will be designed to accommodate experiments for up to 90 days, making it possible to conduct research ranging from early development and differentiation to individual responses in the microgravity environment.

OBS

aquatic animal experiment facility; AAEF: term and abbreviation officially approved by the International Space Station official approval Group (ISSOAG).

French

Domaine(s)
  • Stations orbitales
  • Travaux de recherche dans l'espace
OBS

bac expérimental d'étude des organismes marins; AAEF : terme et abréviation uniformisés par le Groupe de travail de la terminologie de la Station spatiale internationale (GTTSSI).

Spanish

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Record 12 2003-09-12

English

Subject field(s)
  • Orbital Stations
CONT

The MIM Base Unit will be the core element of a series of Canadian facilities that will be used to support microgravity research experiments on the ISS [International Space Station] in disciplines such as materials science, fluid physics, combustion science, biotechnology and fundamental physics. The MIM Base Unit will isolate the scientific payloads from relatively high vibration levels expected on the ISS. In addition, the MIM Base Unit will provide all basic interfaces between scientific payloads and the ISS EXPRESS Rack and will monitor the vibration environment experienced by such payload.

OBS

microgravity isolation mount base unit; MIM base unit; MIMBU: terms and abbreviation officially approved by the International Space Station official approval Group (ISSOAG).

French

Domaine(s)
  • Stations orbitales
CONT

La Base MIM constituera l'élément central d'un ensemble d'installations canadiennes qui serviront à appuyer des expériences de recherche en microgravité à bord de l'ISS [International Space Station] dans des disciplines comme les sciences des matériaux et de la combustion, la physique des fluides, la biotechnologie et la physique fondamentale. La Base MIM isolera les charges utiles scientifiques des niveaux de vibration relativement élevés attendus à bord de l'ISS. De plus, elle fournira toutes les interfaces de base entre les charges utiles scientifiques et le bâti EXPRESS de l'ISS, et elle contrôlera les vibrations auxquelles ces charges utiles sont soumises.

OBS

socle-support d'isolation contre les vibrations en microgravité; base MIM; MIMBU : termes et abréviation uniformisés par le Groupe de travail de la terminologie de la Station spatiale internationale (GTTSSI).

Spanish

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Record 13 2003-09-12

English

Subject field(s)
  • Orbital Stations
CONT

The calculations for the ISS [International Space Station] quasi-steady acceleration environment can be compared to a set of formal design requirements which state that 50 percent of the ISPR [International Standard Payload Rack] locations within the U. S. Lab, Columbus and the JEM must have quasi-steady accelerations below 1 ug for periods of 30 continuous days a total of 6 times per year. The operation of the Station in Microgravity Mode is designed to produce these 30 day intervals. The quasi-steady acceleration vector has an additional directional stability requirement stating that the component perpendicular to the vector's orbital average must be less than or equal to 0. 2 [mu] g. To meet this requirement the Station's attitude must be controlled during orbit so that it maintains a constant position relative to the LVLH [Local Vertical/Local Horizontal] axes.

CONT

The quasi-steady state acceleration level is determined primarily by the combined effects of atmospheric drag(due to the finite residual Earth's atmosphere at the orbital altitude of the ISS), and gravity gradient stabilisation of the ISS. Gravity gradient stabilisation uses the principle that a body in orbit around the Earth will tend to rotate about it's centre of mass, as each part of the body will tend to follow it's own orbit. It will normally oscillate about a mean orientation, but will eventually remain in a stable orientation with respect to the Earth. The normal orientation for the ISS is the Torque Equilibrium Attitude discussed earlier. The resultant combination of atmospheric drag, gravity gradient and other secondary effects produce a set of gravity contours(i. e., locations of equal gravity level) which define the quasi-steady state microgravity environment of the ISS.

OBS

quasi-steady acceleration environment: term officially approved by the International Space Station official approval Group (ISSOAG).

French

Domaine(s)
  • Stations orbitales
OBS

Les modèles d'analyse dynamique (DAC 8) pour l'ISS [International Space Station] prévoient un environnement caractérisé par des vibrations de l'ordre du milli-g (10-4 g) plutôt que des conditions de véritable microgravité (10-6 g) en raison des activités et des divers éléments de l'ISS qui causent des vibrations intempestives (gigue gravitationnelle). Les travaux antérieurs menés à bord de la navette et de Mir ont montré que le milieu est caractérisé par des vibrations aléatoires continues, orientées dans tous les sens, avec des accélérations de l'ordre du milli-g et des crêtes dépassant souvent les 10 milli-g.

OBS

milieu gravitationnel quasi stable : terme uniformisé par le Groupe de travail de la terminologie de la Station spatiale internationale (GTTSSI).

Spanish

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Record 14 2003-03-06

English

Subject field(s)
  • Aerospace Medicine
CONT

... the United States and Russian programs have extensively used a number of countermeasures to maintain the crew's health and fitness, the premise that maintaining crew fitness results significantly in reducing the adverse effects of prolonged exposure to a microgravity environment. These effects vary from the onset of orthostatic intolerance following short-term space flight to the development of bone demineralization following long-term space flight. One thing is clear and that is the variable gravitational fields and the numerous translations found during space travel underscore the need to be prepared for all contingencies.

OBS

The Countermeasures System will consist initially of a treadmill equipped with a vibration isolation and stabilization system and a medical computer.

OBS

countermeasure: term officially approved by the International Space Station official approval Group (ISSOAG).

Key term(s)
  • countermeasures

French

Domaine(s)
  • Médecine aérospatiale
CONT

Les expériences précédemment réalisées en vol ont montré qu'en l'absence de contre-mesures, l'état hémodynamique du cosmonaute (ou du sujet en HDT [head down tilt]) est caractérisé par : une hypovolémie - un débit céphalique stable - une baisse du tonus vasculaire et une circulation fémorale artérielle instable.

OBS

contre-mesure : terme uniformisé par le Groupe de travail de la terminologie de la Station spatiale internationale (GTTSSI).

PHR

Contre-mesure de déconditionnement vasculaire.

Spanish

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Record 15 2003-01-06

English

Subject field(s)
  • Scientific Instruments
  • Energy (Physics)
  • Strength of Materials
CONT

The Surface Forces Adhesion instrument (SFA) has been designed to study the dependence of surface forces and interface energies on physical and chemical-physical parameters such as surface topography, surface cleanliness, temperature and the deformation properties of the contacting bodies.

OBS

The SFA [Surface Forces Adhesion] experiment aims at refining current understanding of adhesion-related phenomena, such as friction and wear, cold welding techniques in a microgravity environment and solid body positioning by means of adhesion.

French

Domaine(s)
  • Instruments scientifiques
  • Énergie (Physique)
  • Résistance des matériaux

Spanish

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Record 16 2002-11-18

English

Subject field(s)
  • Acoustics (Physics)
  • Space Centres
  • Orbital Stations
CONT

Developed specifically for use in the microgravity environment, the Space DRUMSÖ(Dynamically Responding Ultrasonic Matrix System) facility uses an acoustic levitation process that enables large fluid or solid material samples to be positioned and held stably in microgravity while they are being processed on the space station. Called containerless processing, this leading-edge system of dynamic acoustic beam positioning prevents the samples from touching the walls of their containers, thus avoiding defects or contamination.

French

Domaine(s)
  • Acoustique (Physique)
  • Centres spatiaux
  • Stations orbitales
CONT

Mis au point spécifiquement pour utilisation en conditions de microgravité, le module Space DRUMSÖ (Dynamically Responding Ultrasonic Matrix System) utilise un procédé de lévitation acoustique qui permet de positionner et de stabiliser de gros échantillons de matières liquides ou solides dans des conditions de microgravité pendant leur traitement à bord de la station spatiale. Appelé traitement sans creuset, ce procédé de pointe utilisant le positionnement dynamique par rayon acoustique empêche les échantillons de venir en contact avec les parois de leurs contenants, ce qui prévient tout défaut et toute contamination.

Spanish

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Record 17 2002-11-13

English

Subject field(s)
  • Space Physics
CONT

The ISS microgravity acceleration environment consists of two regimes : the quasi-steady environment and the vibratory/transient environment; therefore, the measurement of the microgravity acceleration environment is best accomplished by two accelerometer systems. In the United States Laboratory Module, the measurement of these two regimes is accomplished by the Space Acceleration Measurement System-II(SAMS-II) and the Microgravity Acceleration Measurement System(MAMS). The vibratory/transient environment, consisting of vehicle, crew, and equipment disturbances and covering the frequency range 0. 01-300 Hz, will be measured by the SAMS-II.

French

Domaine(s)
  • Physique spatiale

Spanish

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Record 18 2002-03-11

English

Subject field(s)
  • Astronautics
CONT

The Microgravity Science Glovebox Ground Unit-delivered to the Marshall Center recently-will be used at Marshall' s Microgravity Development Laboratory to test experiment hardware before it is installed in the flight glovebox aboard the International Space Station U. S. Laboratory Module, Destiny. The space station glovebox will provide a sealed work area for experiments conducted in the unique, near-weightless, microgravity environment aboard the International Space Station. The Microgravity Science Glovebox Flight Unit is scheduled to be installed in Destiny in 2001.

OBS

microgravity science glovebox ground unit: term officially approved by the International Space Station official approval Group (ISSOAG).

French

Domaine(s)
  • Astronautique
OBS

unité d'essais au sol de la boîte à gants : terme uniformisé par le Groupe de travail de la terminologie de la Station spatiale internationale (GTTSSI).

Spanish

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Record 19 2002-03-11

English

Subject field(s)
  • Orbital Stations
  • Research Experiments in Space
CONT

The Space Station Furnace Facility is to begin operations in 2002. Materials-science furnaces can carefully study and control the processes by which materials are formed. The persistent one gravity tug here on Earth disguises a multitude of forces that are altered once introduced into a microgravity environment.... This facility is geared to take advantage of the weakening of natural phenomena such as convection, sedimentation, buoyancy, and hydrostatic pressure.

OBS

space station furnace facility; SSFF: term and abbreviation officially approved by the International Space Station official approval Group (ISSOAG).

French

Domaine(s)
  • Stations orbitales
  • Travaux de recherche dans l'espace
OBS

four de la station spatiale; SSFF : terme et abréviation uniformisés par le Groupe de travail de la terminologie de la Station spatiale internationale (GTTSSI).

Spanish

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Record 20 2001-10-09

English

Subject field(s)
  • Orbital Stations
CONT

Most LTMPF [Low-Temperature Microgravity Physics Facility] experiments are sensitive to random vibrations, charged particles, and stray magnetic fields.... A passive vibration isolation system attenuates higher frequency(>1Hz) vibration inputs from the ISS [International Space Station] to below 500 micro g rms. Several layers of magnetic shielding are built into the instrument probe to protect the experiments from on-orbit variations in the magnetic field environment.

OBS

passive vibration isolation system: term officially approved by the International Space Station official approval Group (ISSOAG).

French

Domaine(s)
  • Stations orbitales
OBS

système passif d'isolation contre les vibrations : terme uniformisé par le Groupe de travail de la terminologie de la Station spatiale internationale (GTTSSI).

Spanish

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Record 21 2001-07-13

English

Subject field(s)
  • Orbital Stations
CONT

The SAMS-II [Space Acceleration Measurement System] capability provides an acceleration measurement system serving the needs of microgravity science experiments on ISS [International Space Station]. It provides data supporting experiments that are affected by local accelerations and contributes to the characterization of the ISS environment. The system consists of a control unit(providing control, data recording, analysis and downlink), remote triaxial sensors(measuring experiment-specific locations chosen by the users), and ground operations equipment(serving as the gateway enabling investigators to command and control measurements).

OBS

remote triaxial sensor; RTS: term and abbreviation officially approved by the International Space Station official approval Group (ISSOAG).

French

Domaine(s)
  • Stations orbitales
OBS

télécapteur triaxial de mesure de l'accélération; RTS : terme et abréviation uniformisés par le Groupe de travail de la terminologie de la Station spatiale internationale (GTTSSI).

Spanish

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Record 22 2001-07-04

English

Subject field(s)
  • Spacecraft
CONT

Inside an orbiting spacecraft a "microgravity" environment exists in which the acceleration of objects and persons relative to their surroundings is reduced to the level of micro g's...

OBS

Even in a gravity gradient attitude, accelerations caused by crew movements, equipment operations, and occasional thruster firings can disrupt the quiescent low-gravity environment and may affect microgravity science experiments. Accelerations at particular frequencies may interrupt one type of experiment but have no effect on others. These accelerations are measured at fractions of Earth's gravity; for instance, 10~ g is equal to 1/100, 000 of the gravity on Earth.

OBS

microgravity environment : term officially approved by the International Space Station official approval Group(ISSOAG).

PHR

Vibratory microgravity environment.

French

Domaine(s)
  • Engins spatiaux
CONT

Un environnement en microgravité offre aux scientifiques une occasion unique de contrôler les phénomènes liés à la gravité. De plus, en microgravité, le traitement sans contenant peut être pratiqué sur de plus gros échantillons, car les force acoustiques et électromagnétiques utilisées pour manipuler ne sont pas dominées par la gravité.

OBS

environnement en microgravité : terme uniformisé par le Groupe de travail de la terminologie de la Station spatiale internationale (GTTSSI).

Spanish

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Record 23 2001-07-04

English

Subject field(s)
  • Orbital Stations
  • Research Experiments in Space
CONT

The Space Acceleration Measurement System-II [SAMS-II] provides an acceleration measurement system serving the needs of microgravity science experiments on ISS [International Space Station]. It provides data supporting experiments that are affected by local accelerations and contributes to the characterization of the ISS environment. The system consists of a control unit(providing control, data recording, analysis and downlink), remote triaxial sensors(measuring experiment-specific locations chosen by the users), and ground operations equipment(serving as the gateway enabling investigators to command and control measurements). Operations are coordinated at the Lewis Telescience Support Center; experiment-specific operating parameters are controlled by science users.

OBS

second generation space acceleration measurement system; SAMS-II: term and abbreviation officially approved by the International Space Station official approval Group (ISSOAG).

Key term(s)
  • space acceleration measurement system II

French

Domaine(s)
  • Stations orbitales
  • Travaux de recherche dans l'espace
CONT

Le «Space acceleration measurement system II» (SAMS-II) mesurera les accélérations dues aux véhicules, à l'équipage et à l'équipement. En complément du SAMS-II, le «Microgravity acceleration measurement system» (MAMS) enregistrera les accélérations causées par le déplacement de l'ISS [International Space Station] sur son orbite. Il mesura également les accélérations créées par les rotations du véhicule et les évacuations d'eau. Ces accélérations quasi imperceptibles se produisent à une portée de fréquences au-dessous d'un Hertz.

OBS

système de deuxième génération de mesure d'accélération dans l'espace; SAMS-II : terme et abréviation uniformisés par le Groupe de travail de la terminologie de la Station spatiale internationale (GTTSSI).

Spanish

Save record 23

Record 24 2001-07-03

English

Subject field(s)
  • Orbital Stations
CONT

The standard mode represents the core operations of the ISS [International Space Station], and both internal and external user payload operations are supported.... The focus of the standard and microgravity modes is to control the core systems in order to maintain stable conditions for user payloads. These modes are dedicated to providing an environment for long-term uninterrupted payload operations.

OBS

Mode changes are usually controlled by the ground controller or by on-orbit crew input commands, but the transition to survival mode may be automatically initiated by the ISS [International Space Station].

OBS

standard mode: term officially approved by the International Space Station official approval Group (ISSOAG).

French

Domaine(s)
  • Stations orbitales
OBS

mode standard : terme uniformisé par le Groupe de travail de la terminologie de la Station spatiale internationale (GTTSSI).

Spanish

Save record 24

Record 25 2001-07-03

English

Subject field(s)
  • Orbital Stations
CONT

The "Microgravity" and "Standard" operational modes are the primary modes for carrying out research activities on the ISS [International Space Station]. These two modes have been specifically defined to optimise the gravity environment of the ISS for user research activities. The Microgravity Mode, as the name suggests, provides the most optimised microgravity environment. The Microgravity Mode has been defined to ensure that : 50% of the International Standard Payload Rack locations within the European Columbus, Destiny and Japanese Kibo laboratories must have quasi-steady state accelerations less than 1 micro-g for at least 30 days continuously, on six occasions each year".

CONT

Mode changes are usually controlled by the ground controller or by on-orbit crew input commands, but the transition to survival mode may be automatically initiated by the ISS. ... In the microgravity mode, user payload operations for microgravity research are supported. This mode does include the effects of crew equipment such as exercise devices and latched or hinged enclosures, however crew effects are mitigated to the extent possible.

OBS

microgravity mode: term officially approved by the International Space Station official approval Group (ISSOAG).

French

Domaine(s)
  • Stations orbitales
OBS

mode microgravité : terme uniformisé par le Groupe de travail de la terminologie de la Station spatiale internationale (GTTSSI).

Spanish

Save record 25

Record 26 1999-08-23

English

Subject field(s)
  • Orbital Stations
  • Aerospace Medicine
CONT

... the Torque Velocity Dynamometer(TVD) was used for several experiments that tested muscle function in space. Leg and back muscles start to atrophy in microgravity because they’re not required to support the weight of the body as they do in Earth's one-gravity environment.

OBS

torque velocity dynamometer; TVD: term and abbreviation officially approved by the International Space Station official approval Group (ISSOAG).

French

Domaine(s)
  • Stations orbitales
  • Médecine aérospatiale
CONT

Bob Thirsk a travaillé pendant sa période de repas afin de compléter son test sur le dynamomètre couple-vitesse (TVD) [...]

OBS

dynamomètre couple-vitesse; TVD : terme et abréviation uniformisés par le Groupe de travail de la terminologie de la Station spatiale internationale (GTTSSI).

Spanish

Save record 26

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