Mars landing vehicle descent propulsion, suggesting monopropellant mechanization concept for mission
NASA Technical Reports Server (NTRS)
Aerodynamic and propulsive terminal phase systems for unmanned Mars soft lander compared on basis of
Fld 14 [Jet Propulsion Laboratory], Lander Imaging Initial Computer Load (ICL),. Viking Lander 2, Doc. No. 001638, May 21, 1976 ...
NASA Website
Wind Power. The robotic arm on NASA's Phoenix Mars Lander slid a rock out of the way on. Rock Moved by Mars Lander Arm, Stereo View ...
The Surface Stereo Imager on NASA's Phoenix Mars Lander took this anaglyph on Oct. 21, 2008; the trench on the upper left is called 'Upper Cupboard. ...
Oct 28, 2008 ... In a race against time and the elements, engineers with NASA's Phoenix Mars Lander mission hope to extend the lander's survival by gradually ...
Jul 31, 2008 ... Laboratory tests aboard NASA's Phoenix Mars Lander have identified water in a soil sample. The lander's robotic arm delivered the sample ...
Jun 13, 2008 ... This is an animation of panorama images of NASA's Phoenix Mars Lander's solar panel and the lander's Robotic Arm with a sample in the scoop. ...
May 31, 2008 ... Hard Substrate, Possibly Ice The Robotic Arm Camera on NASA's Phoenix Mars Lander captured this image underneath the lander on the fifth ...
The Phoenix Mars Lander is the first project in. NASA's openly competed program of Mars Scout missions. Phoenix will land in icy soils near the north polar ...
Jun 2, 2010 ... Resembling ornaments hanging from Saturn's rings, two moons accent this portrait of the planet captured by NASA's Cassini spacecraft.
Saturn Plasma and Radio Waves, as Seen by Cassini ... Shenzhen, PRC. Resembling ornaments hanging from Saturn's rings, two moons accent this portrait of the ...
My entree - "Right On Baby" (Pronounced with an English accent like Austin Powers) was a simple catapult design. The basic design criterion was make the ...
NASA's Propulsion and Cryogenic Advanced Development (PCAD) project is currently developing enabling propulsion technologies in support of future lander missions. To meet lander requirements, several technical challenges need to be overcome, one of which ...
National Technical Information Service (NTIS)
Jan 20, 2011 ... The robotic lander prototype's propulsion system, shown during a hot-fire test, consists of. 12 small, attitude-control thrusters; ...
This is a stereo view of 'Moe & Pumpkin', part of the 'Bookshelf' at the back of the 'Rock Garden' to the southwest of NASA's Mars Pathfinder lander.
Adrenaline's running high as engineers and scientists await the May 25 touchdown on the Red Planet of Mars Phoenix Lander. ...
time limits. This is because whereas stationary landers can be commanded as if their spacecraft states were deterministic, ...
Water Hammer Test. propulsion system on an engineering model of NASA's Phoenix Mars Lander This video shows the propulsion system on an engineering model of ...
Looking Back at 'Eagle Crater'(3-D) ... This panorama image of NASA's Phoenix Mars Lander's solar panel and the lander's Robotic Arm with ... The sinuous channels and streamlined islands at the junction of Shalbatana and Simud Vallis, ...
Prototype 25 A-hr, 28-V lithium-ion battery selected for Mars 2001 Lander. In fiscal year 1997, NASA, the Jet Propulsion Laboratory, and the U.S. Air Force ...
May 24, 2010 ... The solar-powered lander completed its three-month mission and kept ... ice buildup could bend or break the lander's solar panels. ... "You can have a thin film layer of water capable of being a habitable environment. ...
Print this article : Join e-mail list. NASA Mars Lander Receives Award From Magazine November 13, 2008. PASADENA, Calif. -- NASA's Phoenix Mars Lander has ...
Sep 11, 2008 ... NASA's Phoenix Mars Lander has photographed several dust devils dancing across the arctic plain this week and sensed a dip in air pressure ...
Jan 22, 2011 ... dc.subject.other, faults Landers Global Positioning System (GPS) Permanent GPS Geodetic Array (PGGA) earthquake, en_US ...
Jan 22, 2011 ... dc.title, Measurements of Aged Aircraft Exhaust in the ACCENT Mission, en_US. Appears in Collections: JPL TRS 1992+ ...
Sun that solar energy is sufficient to power a lander or a rover. But surface- based missions that rely ex- clusively on solar power systems can be short- ...
One of three small ovens in an experiment aboard the Viking 1 spacecraft may not be ... The ovens--three on each Lander--are designed to heat Martian soil ...
Dec 7, 2010... Mars Odyssey spacecraft show a global view of Mars in low energy, ... Lander excavates trenches, it also builds piles with most of the ...
Nov 3, 2010 ... Pools of warm water known as Kelvin waves can be seen traveling eastward ... view of 'Chimp,' south southwest of the lander, was produced ...
Feb 26, 2010 ... Ice Around Phoenix Lander Continues to Lessen in Spring. Stages in the seasonal disappearance of surface ice from the ground around the ...
Go To That Crater And Turn Right: Spirit Gets A Travel Itinerary January 13, 2004. NASA's Spirit has begun pivoting atop its lander platform on Mars, ...
6.3 Model Validation. From the 1998 Mars Polar Lander Mishap Report: &the propulsion system, employed analysis as a substitute for test in the verification ...
As NASA's Phoenix Mars Lander excavates trenches, it also builds piles with most ... The piles, like this one called 'Caterpillar,' provide researchers some ...
Jun 6, 2011 ... This small group of dunes in located within Kasei Valles. ... Phoenix Lander's Surface Stereo Imager shows part of Phoenix's workplace ...
Three Gorges Dam, China. This anaglyph image, acquired by NASA's Phoenix Lander's ... Eerie, dramatic pictures from the NASA's Hubble telescope show newborn ...
NASA's Phoenix Mars Lander took this anaglyph on Oct. 21, 2008; the trench ... Anatahan Volcano, Mariana Islands. Sirenum Fossae is comprised of long, ...
This anaglyph, acquired by NASA's Phoenix Lander shows a stereoscopic 3D view of a trench ... Anatahan Volcano, Mariana Islands ...
Wind Power. The large, elongated rock left of center in the middle distance is ' Zaphod'. Northeast View from Pathfinder Lander - Anaglyph ...
Jan 10, 2004 ... This anaglyph from NASA's Mars Exploration Rover, Spirit, shows the rover's lander and, in the background, the surrounding martian terrain.
Jun 27, 2008 ... This image was acquired by NASA's Phoenix Mars Lander's Surface Stereo Imager ( SSI) in the late afternoon of the 30th Martian day of the ...
NASA's Phoenix Mars Lander monitors the atmosphere overhead and reaches out to the soil below in this stereo illustration of the spacecraft fully deployed ...
Dec 15, 2008 ... The lander's Robotic Arm is cut off in this mosaic view because component ... This photograph of Mercury was taken by NASA's Mariner 10 ...
Aug 9, 2008 ... Vibration of the screen above a laboratory oven on NASA's Phoenix Mars Lander on Saturday got enough soil into the oven begin analysis of ...
This small group of dunes in located within Kasei Valles. ... acquired by NASA's Phoenix Lander's Surface Stereo Imager shows part of Phoenix's workplace ...
... by NASA's Phoenix Lander's Surface Stereo Imager shows part of Phoenix's workplace ... This small group of dunes in located within Kasei Valles. ...
NASA's Mars Odyssey spacecraft produced this high-energy neutron ... As NASA's Phoenix Mars Lander excavates trenches, it also builds piles with most of the ...
Global Map, High-Energy Neutrons ... As NASA's Phoenix Mars Lander excavates trenches, it also builds piles with most of the ...
Wind Power. This anaglyph was taken by NASA's Phoenix Mars Lander's Surface Stereo Imager Oct. 7,. Phoenix's La Mancha Trench in 3D ...
Jul 2, 2008 ... The next sample delivered to NASA's Phoenix Mars Lander's Thermal and Evolved- Gas Analyzer will be ice-rich.
Oct 29, 2008... off selected heaters, the mission hopes to preserve power and prolong the use of the lander's camera and meteorological instruments. ...
Jun 27, 2008 ... Phoenix Mission: A new space explorer is waiting in the wings and ready to take center stage: the Mars lander called Phoenix. Set for launch ...
Jun 4, 2008 ... "Two scoops into the soil we see there's a white layer becoming visible in the ... "We think the lander is sitting on a layer of this white ...
Aug 14, 2008 ... This color image is a three dimensional (3D) view of a digital elevation map of a sample collected by NASA's Phoenix Mars Lander's Atomic ...
Jul 17, 2008 ... Phoenix Mission: A new space explorer is waiting in the wings and ready to take center stage: the Mars lander called Phoenix.
May 26, 2008 ... NASA's Phoenix Mars Lander can be seen parachuting down to Mars, in this ... Phoenix had just opened its parachute 46 seconds earlier, ...
Sep 8, 2008 ... Phoenix Mission: A new space explorer is waiting in the wings and ready to take center stage: the Mars lander called Phoenix.
Aug 14, 2008 ... This animation is a scientific illustration of the operation of NASA's Phoenix Mars Lander's Atomic Force Microscope, or AFM. The AFM is part of ...
Sep 19, 2008 ... This sequence combines 32 images of clouds moving eastward across a Martian horizon. The Surface Stereo Imager on NASA's Phoenix Mars Lander ...
May 25, 2008... that examines shapes of tiny particles by touching them. .... The butterfly- like object in this picture is NASA's Phoenix Mars Lander ...
Oct 30, 2008 ... The communication reinforced a diagnosis that the spacecraft is in a ... The Phoenix lander has operated at a Martian arctic site for more than ...
Phoenix Mission: A new space explorer is waiting in the wings and ready to take center stage: the Mars lander called Phoenix. Set for launch aboard a Delta II ...
Sep 4, 2007 ... Tributes to Terrorism Victims are on Mars � Comet Elenin Poses No Threat to Earth � GRAIL Launch Milestones ...
Dec 16, 2010 ... Phoenix. Mission Type: Lander Launch Vehicle: Delta II 7925. Launch Site: Cape Canaveral NASA Center: Jet Propulsion Laboratory ...
Oct 8, 2008 ... As fall approaches Mars' northern plains, NASA's Phoenix Lander is busy digging ... As major league baseball readies for the World Series, ...
Aug 4, 2003 ... In May 2008, the progeny of two promising U.S. missions to Mars will deploy a lander to the water-ice-rich northern polar region, ...
Jun 18, 2008 ... NASA's Phoenix Mars Lander made its first dig into Martian soil for science studies and is poised to deliver the scoopful to a laboratory ...
Oct 9, 2008 ... As fall approaches Mars' northern plains, NASA's Phoenix Lander is busy digging ... As major league baseball readies for the World Series, ...
Jun 25, 2008 ... NASA Spacecraft Reveal Largest Crater in Solar System ... One of the ovens on NASA's Phoenix Mars Lander continued baking its first sample ...
Feb 18, 2009 ... The Titan Saturn System Mission would consist of a NASA orbiter and an ESA lander and research balloon. The complex mission faces several ...
Feb 4, 2009 ... It also sports a tether that Axel can unreel to descend from a larger lander, ... into craters that are risky for current robotic explorers. ...
One example is the selection of a lunar lander ascent propulsion system, and the other example is the selection of an aeration system for improving the ...
Jan 3, 1999 ... The goal of MPL was to soft land, under propulsive power, near the edges of the south polar ice cap on Mars and to use cameras, ...
MCT has also been used at JSC to display data for the Morpheus Lander Project. Morpheus is a vertical testbed demonstrating new green propellant propulsion ...
The cells use a lithium tetrachlorogallate salt instead of the more conventional ... thin polymer or plastic film, is also used in thermal blankets on ...
The Twin Peaks in 3-D, as Viewed by the Mars Pathfinder IMP Camera ... They were discovered on the first panoramas taken by the IMP camera on the 4th of ...
NASA's Jet Propulsion Laboratory also conducted communication interoperability studies for NASA and ESA orbiters and landers at Mars. This contribution will ...
Feb 16, 2000 ... Mars Polar Lander is managed by the Jet Propulsion Laboratory for NASA's Office of Space Science, Washington, D.C. Lockheed Martin ...
performance and workload; details of the control and propulsion systems ..... is related to attitude command through the inverse sine function, and so is ...
Robert Gershman, Erik Nilsen, and Robert Oberto. Members of the Technical Staff. Jet Propulsion Laboratory. California Institute of Technology ...
Jun 5, 2008 ... A microscope on NASA's Mars Phoenix Lander has taken images of dust and sand particles with the greatest resolution ever returned from ...
Dr. Richard Zurek, Mars Surveyor 1998 project scientist at NASA's Jet Propulsion Laboratory (JPL), Pasadena, CA; Dr. Sam Thurman, Mars Polar Lander flight ...
Jul 20, 2006 ... Timothy J. Parker of the Jet Propulsion Laboratory (Pasadena, California), using sightlines to crater rims seen in the lander images (white ...
Brake Failure From Residual Magnetism in the Mars Exploration. Rover Lander Petal Actuator. Louise Jandura. Jet Propulsion Laboratory, California Institute of ...
... The Phoenix Mars mission involves delivering a stationary science lander on ... extremes between -120�C to 25�C and diurnal thermal cycling in excess of ...
Jan 2, 2009 ... This image, taken on December 21, shows the Phoenix Mars Lander during the last waning days of northern hemisphere summer.
From 2007 the Russian Academy of Sciences and Roscosmos consider to develop a Europa surface element, in coordination with the Europa Jupiter System Mission (EJSM) international project planned to study the Jupiter system. The main scientific objectives of the Europa Lander are to search for the signatures of possible present and extinct life, in situ studies of the Europa ...
NASA Astrophysics Data System (ADS)
1) GATEWAY WITH. SOLAR ELECTRIC. PROPULSION STAGE. TO L1. 2) SOLAR. ELECTRIC. PROPULSION. STAGE TO LEO. 4) L1 LUNAR LANDER TO ...
chemical propulsion, and a lander (with aeroshell) that is released fiom the orbiter on a .... increases its potential energy by looping away from the sun, ...
The purpose of this paper is to demonstrate that finite element analysis can be used in the design process for high performance fabric structures. These structures exhibit extreme geometric nonlinearity; specifically, the contact and interaction of fabric surfaces with the large deformation which necessarily results from membrane structures introduces great complexity to analyses of this type. All ...
Energy Citations Database
The following accents may be placed on letters. Although "o" is used in most of the example, the accents may be placed on any letter. Accents may even be ...
Language: English ...
NBII National Biological Information Infrastructure
Mar 5, 1998 ... Yeomans will lead the work of the U.S. science team in utilizing the scientific instruments on the tiny book-size rover being built at JPL ...
NASA's Dawn spacecraft spies the asteroid Vesta 06.13.11. Vesta's Surface Comes into View, Aquarius Update: Ready for Launch 06.07 ...
Jun 17, 2002 ... Have you ever seen an ink etching, where the artistic ... from NASA's Phoenix Mars Lander shows a portion of the trench informally named ' ...
Jun 23, 2008 ... This color image was acquired by the Surface Stereo Imager on NASA's Phoenix Mars Lander on the 21st day of the mission, or Sol 20 (June 15, ...
The 'Mini Matterhorn' is a 3/4 meter rock immediately east-southeast of NASA's Mars Pathfinder lander. 3D glasses are necessary to identify surface detail. ...
The sinuous channels and streamlined islands at the junction of Shalbatana and Simud Vallis, seen ... This anaglyph, acquired by NASA's Phoenix Lander's show Phoenix's solar panel is seen in the ... Looking Back at 'Eagle Crater'(3-D) ...
The sinuous channels and streamlined islands at the junction of ... Saturn's impact-pummeled moon Hyperion stares back at the Cassini spacecraft in this six- ... This panorama image of NASA's Phoenix Mars Lander's solar panel and the ...
This anaglyph, acquired by NASA's Phoenix Lander's show Phoenix's solar panel is seen in the ... Opportunity Looks Back After Hop to a New Pad ... The sinuous channels and streamlined islands at the junction of ... This artist's image depicts a faraway solar system like our own except for one big difference ...
Looking Back at 'Eagle Crater'(3-D) ... This false-color mosaic focuses on one junction in Noctis Labyrinthus where canyons meet to ... This anaglyph, acquired by NASA's Phoenix Lander's show Phoenix's solar panel is seen in the ...
Hydrogen (LH2) engine system has been identified for the Lunar Lander Descent. Vehicle. ... PCAD Project addresses the technology requirements to obtain relevant and necessary ... propellants. This plan and achievements to date will be presented. ... Low Heat Transfer Tank Mountings, and interfaces ...
Ice Cold Sunrise on Mars 2008-08-26. Ice Cold Sunrise on Mars From the location of NASA's Phoenix Mars Lander, above the Martian arctic circle, the sun does ...
The successes of the Cassini/Huygens mission have heightened interest to return to the Saturn system with focused robotic missions. The desire for a sustained presence at Titan, through a dedicated orbiter and in-situ vehicle, either a lander or aerobot, ...
In 2007, NASA will launch an orbiter and a lander to Mars in support of science and exploration goals. NASA's Jet Propulsion Laboratory is responsible for the mission design. A trajectory analysis is necessary to ensure that the most cost-effective interp...
MEDIA RELATIONS OFFICE JET PROPULSION LABORATORY CALIFORNIA INSTITUTE OF TECHNOLOGY NATIONAL AERONAUTICS AND SPACE ADMINISTRATION PASADENA, CALIF. 91109. ...
Nov 19, 2008 ... The Jet Propulsion Laboratory is the lead U.S. center for robotic exploration of the solar system. JPL spacecraft have visited all known ...
Nov 13, 2008 ... The Jet Propulsion Laboratory is the lead U.S. center for robotic exploration of the solar system. JPL spacecraft have visited all known ...
Nov 3, 2008 ... The Jet Propulsion Laboratory is the lead U.S. center for robotic exploration of the solar system. JPL spacecraft have visited all known ...
Jul 17, 2008 ... The really big thing so far is that the Phoenix team discovered what is believed to be water ice beneath the surface under the lander. Computer ...
Jan 22, 2011 ... dc.subject.other, public key cryptography encryption authentication distributed operations teleoperation Mars Polar Lander security java ...
Jan 22, 2011 ... A lander that encounters a large rock, falls off a cliff, or tips over on a steep slope can sustain mission ending damage. ...
PARTIAL CHANGE ACCENT MODELS FOR ACCENTED MANDARIN SPEECH RECOGNITION LIU Yi and Pascale Fung Human and Technology, Hong Kong {eeyliu, pascale@ee.ust.hk} ABSTRACT Regional accents in Mandarin speech result mostly change accent models based on accent-specific units with acoustic model ...
E-print Network
Accent Detection and Speech Recognition for Shanghai-Accented Mandarin Yanli Zheng , Richard Sproat-native or accented speech. In this paper, we propose a new approach that combines accent de- tection, accent discriminative acoustic features, acoustic adap- tation and model selection for ...
REPRESENTING THE ENVIRONMENTS FOR PHONOLOGICAL PROCESSES IN AN ACCENT�INDEPENDENT LEXICON developing an accent�independent lexicon for use in synthesising speech in English. Lexica which use phonemic transcriptions are only suitable for one accent, and developing a lexicon for a new accent is a long
REPRESENTING THE ENVIRONMENTS FOR PHONOLOGICAL PROCESSES IN AN ACCENT-INDEPENDENT LEXICON developing an accent-independent lexicon for use in synthesising speech in English. Lexica which use phonemic transcriptions are only suitable for one accent, and developing a lexicon for a new accent is a long
A KEYVOWEL APPROACH TO THE SYNTHESIS OF REGIONAL ACCENTS OF ENGLISH Briony Williams and Stephen English text�to�speech synthesisers offer one of only two accents: General American or RP. Developing a new accent is laborious, since it is not possible to choose one accent as a base form
A KEYVOWEL APPROACH TO THE SYNTHESIS OF REGIONAL ACCENTS OF ENGLISH Briony Williams and Stephen English text-to-speech synthesisers offer one of only two accents: General American or RP. Developing a new accent is laborious, since it is not possible to choose one accent as a base form
Selenium Technologies has been conducting preliminary design work on a manned lunar lander for use in NASA's First Lunar Outpost (FLO) program. The resulting lander is designed to carry a crew of four astronauts to a prepositioned habitat on the lunar surface, remain on the lunar surface for up to 45 days while the crew is living in the habitat, then ...
The Spaceship Discovery design was first presented at STAIF 2006. This conceptual design space vehicle architecture for human solar system exploration includes two types of Mars exploration lander modules: A piloted crew lander, designated Lander Module 2 (LM2), and an autonomous cargo lander, designated ...
The problems of using the internal command \\accent as a tool for support of some Cyrillic writing systems is investigated. It is shown that the internal features of \\accent prevent construction of some Cyrillic letters which require several accents simultaneously. A special macro which emulates the work of ...
or several engines per propulsion stage 4. Landing gear 5. Parachutes (for Mars landers) 6. Heat shield). Analytical interpolation #12;Figure 4: Engine weight to thrust ratio interpolation, reference engine data from thrust to weight ratio of the propulsion stage given, the engine mass can be related to the initial
Fourth generation of Mars mission vehicle concepts which are based on nuclear electric (NEP), solar electric (SEP), and nuclear thermal (NTP) propulsion methods are discussed. These concepts combine powerful computational tools with the tight coordination and multiple iterations to obtain high level of detail and cost-effective craftsmanship. Topics addressed include NTP ...
usr/bin/env python """ matplotlib supports accented characters via TeX mathtext The following accents are provided: \\hat, \\breve, \\grave, \\bar, \\acute, ...
... on single syllable words to detect foreign accents in spoken ... Speech processing, Foreign accent recognition, AutoRegressive (AR) modeling. ...
DTIC Science & Technology
Characteristics of foreign accent in Japanese English were examined psychophysically. Unnaturalness in melody, rhythm, and articulation is significantly correlated with native listeners' perception of foreign accent as a whole in Japanese English, and the...
Image from the Phoenix Lander � : Image from the Phoenix Lander � Image from the Phoenix Lander � : Image from the Phoenix Lander ...
The authors describe three patients with foreign accent syndrome during psychotic episodes which resolve with improvement of psychotic symptoms. Psychotic symptoms were worse during the times patients had foreign accents, suggesting a relationship between the presence of the accent and the severity of the psychosis. PMID:17308230
PubMed
from a sequence of phonologically distinctive tones, or cat- egorially different pitch accents: "[...] the pitch movements associated with accented syllables are themselves what make up sentence intonation [...] there is no layer or component of intonation sep- arate from accent: intonation consists of a sequence of ...
A Study of Temporal Features and Frequency Characteristics in American English Foreign Accent x�10 Abstract In this paper, a detailed acoustic feature study of foreign accent using temporal features closure duration, and characteristics of duration are investigated. Accent differences for native
A COMPARISON OF TWO UNSUPERVISED APPROACHES TO ACCENT IDENTIFICATION Mike Lincoln1, Stephen Cox1 to automatically identify a speaker's accent would be very useful for a speech recognition system as it would enable the system to use both a pronunciation dictionary and speech models specific to the accent
Rocket propulsion options for small-scale Mars missions are presented and compared, particularly for the terminal landing maneuver and for sample return. Mars landing has a low propulsive {Delta}v requirement on a {approximately}1-minute time scale, but at a high acceleration. High thrust/weight liquid rocket technologies, or advanced pulse-capable solids, ...
DOE Information Bridge
The goal of the present study was to examine functioning of late bilinguals in their second language. Specifically, we asked how native and non-native Hebrew speaking listeners perceive accented and native-accented Hebrew speech. To achieve this goal we used the gating paradigm to explore the ability of healthy late fluent bilinguals (Russian and Arabic ...
ERIC Educational Resources Information Center
... ADA370565. Title : The Impact of Accent, Noise, and Linguistic Predictability on the Intelligibility of Non-Native Speakers of English. ...
... IX. WORD ACCENT IN JAPANESE,. ... Abstract : The study presents an acoustic-phonetic and phonological analysis of word accent in Japanese. ...
... retains the style of the speaker exactly � Scottish accents, falsetto, �laid ... a speaker pronounces the word �Tuesday�, in a Scottish accent, it might ...
... To this end accent has been given ... In the programming area, accent was directed toward providing a supervisor/ monitor capability for the system. ...
... In other words, what does a culturally competent ... basics to engage, communicate, read situations, build ... accents of trainers be identical to accents of ...
As speech recognition systems are used in ever more applications, it is crucial for the systems to be able to deal with accented speakers. Various techniques, such as acoustic model adaptation and pronunciation adaptation, have been reported to improve the recognition of non-native or accented speech. In this paper, we propose a new approach that combines ...
INVESTIGATING BRITISH ASIAN ACCENTS STUDIES FROM GLASGOW Kirsten Lambert1 , Farhana Alam2 and Jane on British Asian accents. The complementary results from two small-scale studies of Glasgow Asian accent confirm the identification of Glasgow Asian as an recognizable accent, identify accent ...
This paper outlines a model of accenting that is based on a combination of syntactic/metrical and semantic/pragmatic considerations. The model, called the blackboard model of accenting in an allusion to the blackboard architectures used in artificial intelligence, explains how the interaction of various factors (namely `triggers' as well as `obstacles' for ...
A derivative of the NERVA nuclear rocket engine was compared with a chemical propulsion system and a nuclear electric propulsion system to assess the relative capabilities of the different propulsion system options for three potential space missions. The missions considered were (1) orbital transfer from low earth orbit (LEO) to ...
The present review seeks to bridge research on accents, stigma, and communication by examining the empirical literature on nonnative accents, considering the perspectives of both speakers and listeners. The authors suggest that an accent, or one's manner of pronunciation, differs from other types of stigma. They consider the role of ...
It is well known that speaker variability caused by accent is one factor that degrades performance of speech recognition algorithms. If knowledge of speaker accent can be estimated accurately, then a modified set of recognition models which addresses speaker accent could be employed to increase recognition accuracy. In this study, the ...
This study aimed to determine the relative processing cost associated with comprehension of an unfamiliar native accent under adverse listening conditions. Two sentence verification experiments were conducted in which listeners heard sentences at various signal-to-noise ratios. In Experiment 1, these sentences were spoken in a familiar or an unfamiliar native ...
This study examines children's ability to detect accent-related information in connected speech. British English children aged 5 and 7 years old were asked to discriminate between their home accent from an Irish accent or a French accent in a sentence categorization task. Using a preliminary ...
An Integrated Modular Engine (IME) system conceptual design has been developed for meeting the upper stage propulsion requirements. This design was used to identify key technical areas for further development and demonstration. A number of factors are favorable for introducing advanced technologies: new materials are available, controls and health monitoring are vastly more ...
This study examined how passage content influences attitudes towards American English Accents. Participants listened to passages differing in topic content spoken in an American Southern English or Standard American English accent. Although Southern-accented speakers were rated higher in sociality, but lower in status, than ...
PubMed Central
The objectives and rationale for scientific investigation of Mercury are explored. Knowledge already obtained by astronomical observations and Mariner 10 spacecraft is reviewed and measurements required for the principal scientific goals are described. The use of low thrust propulsion systems is recommended so that maximum scientific return may be achieved and the ...
May 8, 2008 ... NASA invites people of all ages to join the lunar exploration journey with an opportunity to send their names to .... They burn for approximately 123 seconds and generate an .... 1999 Lexus RX300, auto climate, tan leather, ... others build payloads that deploy miniature robot "landers." Teams must ...
In fiscal year 1997, NASA, the Jet Propulsion Laboratory, and the U.S. Air Force established a joint program to competitively develop high-power, rechargeable lithium-ion battery technology for aerospace applications. The goal was to address Department of...
May 14, 2007 ... Composite radio/optical/ultraviolet image of NGC 5291 ... A U.S. Air Force C-17 cargo aircraft carried NASA's Phoenix Mars Lander ... The newest bunch of space enthusiasts in NASA's Solar System Ambassadors Program is hard at work, ... spacecraft has significantly advanced weather forecasting and is ...
In this video segment, Dr. Ayanna Howard, a robotics engineer at NASA's Jet Propulsion Laboratory, describes the process of designing and developing robotic devices to act as surrogates for humans in planetary exploration, including some of the remarkable challenges she faced as a member of the recent Mars Lander mission. Her insights reveal why ...
NSDL National Science Digital Library
Sep 16, 2008 ... Water ice near the surface of Mars! ... They show degrees of weathering and different chemical compositions. ... minutes without a cool-down period before resuming. ... New methods of delivering material to the chemistry experiments on the lander deck had to be simple, because the original design was to ...
Stress on Accent; Errenteria Basque Revisited Aritz Irurtzun EHU-University of The Basque Country the current one is a stress-accent system and the previous one suggests to be a pitch-accent system. Based studied in terms of accent (with the exceptions of [2], a few notes in [3], [4], [5], [6], [7] when
MODELING PITCH ACCENT CURVES Jan van Santen and Bernd M�obius Lucent Technologies � Bell Labs, 600 causelarge temporal changesin local pitch contours associated with accented syllables ("accent curves changes that are smaller but nevertheless significant. We propose a model according to which accent curves
ISSUES IN RECOGNITION OF SPANISH-ACCENTED SPONTANEOUS ENGLISH Ayako Ikeno , Bryan Pellom , Dan Cer of strongly Hispanic-accented English. We show the crucial importance of training on the Hispanic- accented data for acoustic model performance, and describe the tendency of Spanish-accented speakers to use
in Pitch Accent Placement Leonardo Badino, Robert A.J. Clark Centre for Speech Technology Research is usually found amongst the pitch accent patterns of the speakers. Assuming that such disagreement is due to a partial optional- ity of pitch accent placement, it has been recently proposed to evaluate pitch accent
Early results from the meteorological instruments on the Viking 2 lander are presented. As on lander
The NEXT-Lunar Lander mission, as contracted by ESA and investigated by OHB-System and its industrial study team, has two main purposes. The first is technology demonstration for enabling technologies like propulsion-based soft precision landing for future planetary landing missions. This involves also enabling technology experiments, like fuel cell, life ...
Our studies have concluded that PI-class science small body missions are possible with telecommunications infrastructure solar powered spacecraft. These spacecraft are flight proven with more than 60 yrs of cumulative in-space operation and are equipped with highly efficient solar arrays capable of accessing a wide variety of small bodies. Coupled with this capability, we are developing a �small ...
The Moon NEXT mission studied by ESA through contracts to industry includes a Lunar Lander that deploys several optional payloads close to the Moon's South Pole. These payloads may comprise a Rover and other various experiments directly on the Lander or deposited by the Lander on the lunar surface. Moon-NEXT is an exploration precursor ...
Title: Europa Small Lander Design Concepts Authors: Wayne F. Zimmerman, James Shirley, Robert Carlson, Tom Rivellini, Mike Evans One of the primary goals of NASA's Outer Planets Program is to revisit the Jovian system. A new Europa Geophysical Explorer (EGE) Mission has been proposed and is under evaluation. There is in addition strong community interest in a surface science ...
