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Defense Technical Information Archive
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We performed experiments to test the hypothesis that partial counter-doping of sulfur-hyperdoped silicon would create a partially filled intermediate band, which could be used for sub-bandgap photodetection. We fabricated counter-doped Si:S:B of well-controlled crystal quality and dopant concentration-depth profile, and we made three independent measurements of photoconductivity: one with contacts, and two without contacts. These measurements were per-formed in collaboration with the Persans...
Topics: DTIC Archive, HARVARD UNIV CAMBRIDGE MA, *BAND GAPS, *IMPURITIES, *PHOTOCONDUCTIVITY,...
Interdisciplinarity is a pervasive trend in 21st-century knowledge building and innovation. It is predicated on the recognition that creative solutions to the world's increasingly complex problems require the intersection of diverse expertise. Little scholarly attention has been directed towards how the new interdisciplinary (ID) model is influencing the processes and outcomes of graduate research training. In a qualitative study informed by critical narrative analysis and conducted at one...
Topics: ERIC Archive, Foreign Countries, Interdisciplinary Approach, Supervision, Doctoral Programs,...
This paper presents a theorised classroom-based account discussing the author's interdisciplinary approach to engaging first-year teacher-education students in self-critical inquiry using creative writing techniques as an entry point into Arts-based three-dimensional storytelling. Via an interpretation of Lacan's "speaking subject"--combined with theories of the postmodern "self"--the discussion explores the creative potential of autoethnography as a practice of...
Topics: ERIC Archive, Foreign Countries, Interdisciplinary Approach, Teacher Education, Beginning Teachers,...
The Joy Cardin Show
by The Joy Cardin Show
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It may be a quiet session in terms of bills that actually pass the state Legislature. In the State Capitol Report, Cynthia Schuster talks with WPR’s state government reporter about the various issues the Senate will not be taking up in 2014, including drunken driving, abortion and the speed limit.
Topics: Wisconsin Public Radio, The Joy Cardin Show
Alaska News Nightly
by Alaska Public Media
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CBS Evening News Podcast
by CBS
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Many of the 800 people living in Orrick, Mo., were left without a home after a violent tornado struck. Residents had a 15-minute warning, and despite the damage no one was hurt; and, three-time Grammy winner Ben Harper travels the world performing his music, but always returns to the Folk Music Center, which his mother runs. His latest album is a collaboration with his mother, Ellen, called "Childhood Home."
Topic: CBS Evening News Podcast
The Archive Team Just In Time Grabs
by m.wsj.net
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This is a panic download of m.wsj.net/video/20090722/ as of 2014-01-16.
Topics: m.wsj.net, archiveteam
This report describes the research activities conducted at the University of Manchester in this project. A comprehensive literature survey of the relevant phenomena and subsequent interactions is presented along with a description of the wind tunnel facility calibration. Experimental techniques and methodologies are discussed, including reference to the range of their applicability in the campaign. Model designs, experimental setup, and preliminary analysis of the flow field are presented. The...
Topics: DTIC Archive, MANCHESTER UNIV (UNITED KINGDOM), *FLOW FIELDS, HEAT TRANSFER, HYPERSONIC WIND...
Defense Technical Information Archive
by Defense Technical Information Center
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During this reporting period, we continued developing the stator and slider electrodes and refined the methodology for evaluating and mitigating the failure risks of the MREM actuators. TDF worked with Life BioSciences, Inc. (LBSI), to design and fabricate a test-bed MREM actuator with a single pair of stator and slider layers. The left side of Figure 1 shows schematics of the wiring layout for a half of a stator layer. The other half of the stator layer has a similar wiring layout. The right...
Topics: DTIC Archive, THERMODYNAMIC FILMS LLC SANTA FE NM, *ELECTROMECHANICAL DEVICES, ACTUATORS,...
Defense Technical Information Archive
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The purpose of encryption is to convert information into something that looks like gibberish to everyone else. This gibberish can be transported and stored, but it cannot be understood and, therefore, one would imagine, it cannot be processed. Amazingly, however, under some circumstances, encrypted data can in fact be processed, even if those doing the processing have no idea what the data say or what they mean. The Defense Advanced Research Projects Agency (DARPA) is currently running a...
Topics: DTIC Archive, RAND NATIONAL DEFENSE RESEARCH INST SANTA MONICA CA, *COMPUTER PROGRAMMING,...
Defense Technical Information Archive
by Defense Technical Information Center
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Many protein-based drugs have limited efficacy due to a short half-life or require intravenous delivery because of low bioavailability when given subcutaneously. Extend Biosciences is developing proprietary carrier molecules that will allow proteins to access a transport pathway for efficient delivery to the vascular space and then maintain a sustained presence in circulation. This would be of particular importance in the development of longer-lasting versions of bioscavenger proteins that...
Topics: DTIC Archive, EXTEND BIOSCIENCES INC CAMBRIDGE MA, *PROTEINS, CHOLINESTERASE
Defense Technical Information Archive
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The research proposed to examine the ability of inhibition of mitophagy, the mitochondrial-specific form of autophagy, to kill prostate cancer cells. Cancer cells become increasingly dependent on mitophagy as an energy source and the mitochondria themselves become more and more dysfunctional. Therefore, mitophagy may represent a novel target for the prevention of prostate cancer progression. Consequently, the purpose of this research was to test whether inhibition of mitophagy can lead to the...
Topics: DTIC Archive, MISSOURI UNIV-COLUMBIA, *APOPTOSIS, *MITOCHONDRIA, *PROSTATE CANCER, *PROTEINS,...
Defense Technical Information Archive
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Topics: DTIC Archive, DEFENSE MANPOWER DATA CENTER ALEXANDRIA VA, *SURVEYS
Defense Technical Information Archive
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Traditional biometric recognition systems rely on a single biometric signature for authentication. While the advantage of using multiple sources of information for establishing the identity has been widely recognized, computational models for multimodal biometrics recognition have only recently received attention. We propose a multimodal sparse representation method, which represents the test data by a sparse linear combination of training data, while constraining the observations from...
Topics: DTIC Archive, RICE UNIV HOUSTON TX, *BIOMETRY, *DATA FUSION, ALGORITHMS, MULTIMODE
Defense Technical Information Archive
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The NPS Field Experimentation Program was initiated in FY02 to provide an opportunity for NPS faculty and students to evaluate new technologies from their research in a field environment. These efforts were continued and integrated to create a formal decade long cooperative field experimental effort with USSOCOM (S&T/J9 and SORDAC) that began in FY03 as STAN (Surveillance and Targeting Acquisition Network) and culminated as TNT (Tactical Network Topology) in 2013. After TNT, sponsorship of...
Topics: DTIC Archive, NAVAL POSTGRADUATE SCHOOL MONTEREY CA, *FIELD TESTS, *RESEARCH MANAGEMENT, *TARGET...
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The Buck Sexton Show
by TheBlaze Radio Network
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Buck embraces the day's #IChooseHope campaign, focusing on stories that inspire and uplift. He shares his own story of hope from childhood - "The Bear Story" - and provides historical perspective with a look back to the life of Maximilian Kolbe. Also, listeners the most positive experiences of their lives. That and more on The Buck Sexton Show! The Buck Sexton Show is LIVE weekdays from 12pm - 2pm ET, only on TheBlaze Radio Network. www.theblaze.com/radio Twitter: @BuckSexton...
Topics: TheBlaze Radio Network, Buck Sexton, The Buck Sexton Show
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Malaysia has evolved from a production-based to knowledge-based economy in order to stay relevant and compete in the global marketplace. Thus, the purpose of this article is to discuss current trends in Malaysian higher education and how these affect education policies and practices. Four main trends are discussed in this study: Globalization, Teaching and Learning, Governance, and the Knowledge-Based Society. These are followed by four elements that affect education policy and practices:...
Topics: ERIC Archive, Foreign Countries, Educational Trends, Higher Education, Educational Policy,...
This study looks to answer the question, "Does the current accounting educational system in the United States focus too heavily on the requirements of large (and SEC registered) companies at the expense of small companies and individuals who comprise the primary clientele of most practicing CPAs?" This investigation surveys CPAs regarding their perceptions of the focus of their accounting education. The results of the survey suggest that the current accounting curriculum does not...
Topics: ERIC Archive, Accounting, Small Businesses, Curriculum Design, Questionnaires, Telephone Surveys,...
Some students, including students with print disabilities, students with low vision, and English language learners, may benefit from having test content read aloud. However, there have been challenges in standardizing the presentation of test content, including whether or not to read answer choices or to describe maps and cartoons, among many other issues. Technology-enhanced assessment offers the opportunity to provide standardized audio support delivered through the test platform. One goal of...
Topics: ERIC Archive, Testing Accommodations, Assistive Technology, Guidelines, Audio Equipment, Visual...
Defense Technical Information Archive
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We propose a technique to overcome phase mismatch in Josephson-junction traveling wave parametric amplifiers in order to achieve high gain over a broad bandwidth. Using resonant phase matching, we design a compact superconducting device consisting of a transmission line with subwavelength resonant inclusions that simultaneously achieves a gain of 20 dB, an instantaneous bandwidth of 3 GHz, and a saturation power of -98 dBm. Such an amplifier is well suited to cryogenic broadband microwave...
Topics: DTIC Archive, CALIFORNIA UNIV BERKELEY, *JOSEPHSON JUNCTIONS, *PARAMETRIC AMPLIFIERS, *TRAVELING...
This paper presents the evaluation and analysis of two multi-band, transceiver architectures that address the current demands in telemetry applications. One architecture used image rejection to perform coarse band selection, translating the RF spectrum to IF frequencies, while the second architecture utilizes an adaptive filter bank architecture for more agile band selectivity. Both architectures consist of an analog front-end subsystem for signal conditioning and frequency translation, and a...
Topics: DTIC Archive, AIR FORCE TEST CENTER EDWARDS AFB CA, *RADIO TELEMETRY, ALGORITHMS, BANDWIDTH, PHASE...
In this paper we report trends over time of performance of non-Indigenous and Indigenous students on the Numeracy component of the NAPLAN tests. Possible links between student performance on the NAPLAN Numeracy test and the four components--Reading, Writing, Spelling, and Grammar--of the NAPLAN Literacy test were also explored. While the performance of both groups of students at all grade levels have remained fairly consistent over time, there were differences in the aspects of literacy most...
Topics: ERIC Archive, Indigenous Populations, Numeracy, Mathematics Achievement, Mathematics Tests,...
BBC World Service Newshour
by BBC World Service
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NASA Network Resource and Training Site
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Silver biocide offers a potential advantage over iodine, the current state of the art in US spacecraft disinfection technology, in that silver can be safely consumed by the crew. Low concentrations of silver (<500 ppb) have been shown to kill bacteria in water systems and keep it safe for potability. Silver does not require hardware to remove it from a water system, and therefore can provide a simpler means for disinfecting water. The Russian segment of the International Space Station...
Topics: NASA Technical Reports Server (NTRS), SILVER, POTABLE WATER, CHEMICAL STERILIZATION, WATER...
The objective of this paper is to describe an accurate and efficient reduced order modeling method for aeroelastic (AE) analysis and for determining the flutter boundary. Without losing accuracy, we develop a reduced order model based on the Volterra series to achieve significant savings in computational cost. The aerodynamic force is provided by a high-fidelity solution from the Reynolds-averaged Navier-Stokes (RANS) equations; the structural mode shapes are determined from the finite element...
Topics: NASA Technical Reports Server (NTRS), COMPUTATIONAL FLUID DYNAMICS, FLUTTER ANALYSIS,...
Shape memory alloys (SMA) have a unique ability to recover small amounts of plastic strain through a temperature induced phase change. For these materials, mechanical displacement can be accomplished by heating the structure to induce a phase change, through which some of the plastic strain previously introduced to the structure can be reversed. This paper introduces a concept whereby an SMA phase is incorporated into a conventional alloy matrix in a co-continuous reticulated arrangement...
Topics: NASA Technical Reports Server (NTRS), BIMETALS, COMPOSITE STRUCTURES, RESIDUAL STRESS, SHAPE MEMORY...
On September 6, 2013, a nearperfect launch of the first Minotaur V rocket successfully carried NASA's Lunar Atmosphere and Dust Environment Explorer (LADEE) into a higheccentricity geocentric orbit. The launch, from NASA's Wallops Flight Facility in Virginia, was visible from much of the eastern seaboard. Over the next 30 days, LADEE performed three phasing orbits, with near-perfect maneuvers that placed apogee at ever higher altitudes in preparation for rendezvous with the Moon. LADEE arrived...
Topics: NASA Technical Reports Server (NTRS), LUNAR ATMOSPHERE, LUNAR DUST, ATMOSPHERIC COMPOSITION,...
As part of ongoing development efforts at MSFC, we have begun to investigate mounting strategies for highly nested x-ray optics in both full-shell and segmented configurations. The analytical infrastructure for this effort also lends itself to investigation of active strategies. We expect that a consequence of active figure control on relatively thin substrates is that errors are propagated to the edges, where they might affect the effective precision of the mounting points. Based upon...
Topics: NASA Technical Reports Server (NTRS), X RAY OPTICS, MOUNTING, ACTIVE CONTROL, SEGMENTS, CORRECTION,...
NASA Network Resource and Training Site
by NASA Technical Reports Server (NTRS)
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Atomic oxygen, which is the most predominant species in low Earth orbit, is highly reactive and can break chemical bonds on the surface of a wide variety of materials leading to volatilization or surface oxidation which can result in failure of spacecraft materials and components. This presentation will give an overview of how atomic oxygen reacts with spacecraft materials, results of space exposure testing of a variety of materials, and examples of failures caused by atomic oxygen.
Topics: NASA Technical Reports Server (NTRS), OXYGEN ATOMS, FAILURE, SPACECRAFT COMPONENTS, EXPOSURE, LOW...
Simulation codes often utilize finite-dimensional approximation resulting in numerical error. Some examples include, numerical methods utilizing grids and finite-dimensional basis functions, particle methods using a finite number of particles. These same simulation codes also often contain sources of uncertainty, for example, uncertain parameters and fields associated with the imposition of initial and boundary data,uncertain physical model parameters such as chemical reaction rates, mixture...
Topics: NASA Technical Reports Server (NTRS), COMPUTATIONAL FLUID DYNAMICS, ERROR ANALYSIS, COMPUTERIZED...
The sensitivity of xenon ionization rates to collision cross-sections is studied within the framework of a hybrid-PIC model of a Hall thruster discharge. A revised curve fit based on the Drawin form is proposed and is shown to better reproduce the measured crosssections at high electron energies, with differences in the integrated rate coefficients being on the order of 10% for electron temperatures between 20 eV and 30 eV. The revised fit is implemented into HPHall and the updated model is...
Topics: NASA Technical Reports Server (NTRS), HALL THRUSTERS, THRUST, XENON, IONIZATION, ION CHARGE,...
Solar concentrators are envisioned for use in a variety of space-based applications, including applications involving in situ resource utilization. Identifying solar concentrators that minimize mass and cost are of great interest, especially since launch cost is driven in part by the mass of the payload. Concentrators must also be able to survive the wide temperature excursions on the lunar surface. Identifying smart structures which compensate for changes in concentrator geometry brought about...
Topics: NASA Technical Reports Server (NTRS), BUCKLING, SOLAR COLLECTORS, DESIGN ANALYSIS, AXIAL LOADS, IN...
The Intelligent Control and Autonomy Branch (ICA) at NASA (National Aeronautics and Space Administration) Glenn Research Center (GRC) in Cleveland, Ohio, is leading and participating in various projects in partnership with other organizations within GRC and across NASA, the U.S. aerospace industry, and academia to develop advanced controls and health management technologies that will help meet the goals of the NASA Aeronautics Research Mission Directorate (ARMD) Programs. These efforts are...
Topics: NASA Technical Reports Server (NTRS), AIRCRAFT SAFETY, FLIGHT SAFETY, AUTONOMY, ACTIVE CONTROL,...
No abstract available
Topics: NASA Technical Reports Server (NTRS), COMPONENTS, ELECTRONIC PACKAGING, NASA PROGRAMS, GENERAL...
NASA Network Resource and Training Site
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Astronomical observations in the Far Ultraviolet (FUV) spectral region are some of the more challenging due to the very distant and faint objects that are typically searched for in cosmic origin studies such as origin of large scale structure, the formation, evolution, and age of galaxies and the origin of stellar and planetary systems. These challenges are driving the need to improve the performance of optical coatings over a wide spectral range that would increase reflectance in mirrors and...
Topics: NASA Technical Reports Server (NTRS), OPTICAL COATINGS, FAR ULTRAVIOLET RADIATION, PROGRESS,...
NASA Network Resource and Training Site
by NASA Technical Reports Server (NTRS)
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Topics: NASA Technical Reports Server (NTRS), COMPUTATION, MOLECULAR ENERGY LEVELS, POTENTIAL ENERGY,...
We study the relationship between the structure and star-formation rate (SFR) of X-ray selected low and moderate luminosity active galactic nuclei (AGNs) in the two Chandra Deep Fields, using Hubble Space Telescope imaging from the Cosmic Assembly Near Infrared Extragalactic Legacy Survey (CANDELS) and deep far-infrared maps from the PEP+GOODS-Herschel survey. We derive detailed distributions of structural parameters and FIR luminosities from carefully constructed control samples of galaxies,...
Topics: NASA Technical Reports Server (NTRS), STAR FORMATION RATE, ACTIVE GALACTIC NUCLEI, HUBBLE SPACE...
Satellite observations of formaldehyde (HCHO) columns provide top-down constraints on emissions of highly reactive volatile organic compounds (HRVOCs). This approach has been used previously to constrain emissions of isoprene from vegetation, but application to US anthropogenic emissions has been stymied by lack of a discernable HCHO signal. Here we show that oversampling of HCHO data from the Ozone Monitoring Instrument (OMI) for 2005 - 2008 enables quantitative detection of urban and...
Topics: NASA Technical Reports Server (NTRS), SATELLITE OBSERVATION, VOLATILE ORGANIC COMPOUNDS,...
NASA Network Resource and Training Site
by NASA Technical Reports Server (NTRS)
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Climate science is a big data domain that is experiencing unprecedented growth. In our efforts to address the big data challenges of climate science, we are moving toward a notion of Climate Analytics-as-a-Service (CAaaS). CAaaS combines high-performance computing and data-proximal analytics with scalable data management, cloud computing virtualization, the notion of adaptive analytics, and a domain-harmonized API to improve the accessibility and usability of large collections of climate data....
Topics: NASA Technical Reports Server (NTRS), CLIMATE, DATA MANAGEMENT, MANAGEMENT ANALYSIS, INFORMATION...
Space-based microwave sensors have been available for several decades, and with time more frequencies have been offered. Observations made at frequencies between 7 and 183 GHz were often used for monitoring cryospheric properties (e.g. sea ice concentration, snow accumulation, snow melt extent and duration). Since 2009, satellite observations are available at the low frequency of 1.4 GHz. Such observations are collected by the Soil Moisture and Ocean Salinity (SMOS) mission, and the...
Topics: NASA Technical Reports Server (NTRS), RADIOMETERS, SCATTEROMETERS, CRYOSPHERES, MICROWAVE SENSORS,...
The transect took place in 2008 (IPY), within the EC-led project:Variability and Change in the Canadian Cryosphere:A contribution to State and Fate of the Cryosphere
Topics: NASA Technical Reports Server (NTRS), SNOW, VEGETATION, CANADA, ICE ENVIRONMENTS, NEAR INFRARED...
Two recent papers have quantified long-term ozone (O3) changes observed at northernmidlatitude sites that are believed to represent baseline (here understood as representative of continental to hemispheric scales) conditions. Three chemistry-climate models (NCAR CAM-chem, GFDL-CM3, and GISS-E2-R) have calculated retrospective tropospheric O3 concentrations as part of the Atmospheric Chemistry and Climate Model Intercomparison Project and Coupled Model Intercomparison Project Phase 5 model...
Topics: NASA Technical Reports Server (NTRS), OZONE, CONCENTRATION (COMPOSITION), TROPOSPHERE, RADIATIVE...
NASA Network Resource and Training Site
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Adaptive control provides robustness and resilience for highly uncertain, and potentially unpredictable, flight dynamics characteristic. Some of the recent flight experiences of pilot-in-the-loop with an adaptive controller have exhibited unpredicted interactions. In retrospect, this is not surprising once it is realized that there are now two adaptive controllers interacting, the software adaptive control system and the pilot. An experiment was conducted to categorize these interactions on the...
Topics: NASA Technical Reports Server (NTRS), ADAPTIVE CONTROL, PILOT PERFORMANCE, MAN MACHINE SYSTEMS,...
Validation of in-orbit instrument performance is a function of stability in both instrument and calibration source. This paper describes a method using lunar observations scanning near full moon by the Clouds and Earth Radiant Energy System (CERES) instruments. The Moon offers an external source whose signal variance is predictable and non-degrading. From 2006 to present, these in-orbit observations have become standardized and compiled for the Flight Models -1 and -2 aboard the Terra...
Topics: NASA Technical Reports Server (NTRS), CERES (EXPERIMENT), POSITION (LOCATION), CALIBRATING,...
NASA Network Resource and Training Site
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Several experiments which have reported a delay of transition are analyzed in terms of the frequencies of the induced disturbances generated by different flow control elements. Two of the experiments employed passive stabilizers in the boundary layer, one leading-edge bluntness, and one employed an active spark discharge in the boundary layer. It is found that the frequencies generated by the various elements lie in the damping region of the associated stability curve. It is concluded that the...
Topics: NASA Technical Reports Server (NTRS), ACOUSTIC FREQUENCIES, TURBULENT FLOW, ELECTRIC SPARKS,...
For the study of nonlinear dynamic systems, it is important to locate the equilibria and bifurcations occurring within a specified computational domain. This paper proposes a new approach for solving these problems and compares it to the numerical continuation method. The new approach is based upon branch and bound and utilizes rigorous enclosure techniques to yield outer bounding sets of both the equilibrium and local bifurcation manifolds. These sets, which comprise the union of...
Topics: NASA Technical Reports Server (NTRS), NONLINEAR PROGRAMMING, DYNAMICAL SYSTEMS, BRANCHING...
NASA LaRC is developing and integrating a double-Pulsed 2-micron direct detection IPDA lidar for CO2 column measurement from an airborne platform. The presentation will describe the development of the 2-micrometers IPDA lidar system and present the airborne measurement of column CO2 and will compare to in-situ measurement for various ground target of different reflectivity.
Topics: NASA Technical Reports Server (NTRS), CARBON DIOXIDE, GAS TRANSPORT, CARBON CYCLE, DIFFERENTIAL...
The goal of this study is to better understand the effect of structurally integrated resonators on the transmission loss of a sandwich panel. The sandwich panel has facesheets over a corrugated core, which creates long aligned chambers that run parallel to the facesheets. When ports are introduced through the facesheet, the long chambers within the core can be used as low-frequency acoustic resonators. By integrating the resonators within the structure they contribute to the static load bearing...
Topics: NASA Technical Reports Server (NTRS), ACOUSTIC RESONANCE, RESONATORS, EMBEDDING, TRANSMISSION LOSS,...
This paper presents a consensus-based formation control scheme for autonomous multi-agent systems represented by double integrator dynamics. Assuming that the information graph topology consists of an undirected connected graph, a leader-based consensus-type control law is presented and shown to provide asymptotic formation stability when subjected to piecewise constant formation velocity commands. It is also shown that global asymptotic stability is preserved in the presence of (0, infinity)-...
Topics: NASA Technical Reports Server (NTRS), ASYMPTOTIC PROPERTIES, AUTOMATIC CONTROL, AUTONOMY, COMMAND...
Despite continued growth in atmospheric levels of greenhouse gases, global mean surface and tropospheric temperatures have shown slower warming since 1998 than previously. Possible explanations for the slow-down include internal climate variability, external cooling influences and observational errors. Several recent modelling studies have examined the contribution of early twenty-first-century volcanic eruptions to the muted surface warming. Here we present a detailed analysis of the impact of...
Topics: NASA Technical Reports Server (NTRS), VOLCANOES, TROPOSPHERE, CLIMATE MODELS, GLOBAL WARMING,...
Earth Science Industry Update: UAS Applications for Hurricane Science Unmanned systems can significantly transform hurricane observations and monitoring, improving our knowledge about and ability to forecast storm formation, track, and intensity change. NASA's use of the Global Hawk has demonstrated the scientific value of this platform and provided a proof-of-concept for operational applications. However, science flight operations face several challenges and constraints. In this session, learn...
Topics: NASA Technical Reports Server (NTRS), HURRICANES, STORMS (METEOROLOGY), SENTINEL SYSTEM,...
In order to address the increasing communications needs of modern equipment in space, and to address the increasing number of objects in space, NASA is demonstrating the potential capability of optical communications for both deep space and near-Earth applications. The Integrated Radio Optical Communications (iROC) is a hybrid communications system that capitalizes on the best of both the optical and RF domains while using each technology to compensate for the other's shortcomings....
Topics: NASA Technical Reports Server (NTRS), NETWORK CONTROL, COMMUNICATION SATELLITES, OPTICAL...
In September of 2013, the Asteroid Robotic Redirect Mission (ARRM) Option B team was formed to expand on NASA's previous work on the robotic boulder capture option. While the original Option A concept focuses on capturing an entire smaller Near-Earth Asteroid (NEA) using an inflatable bag capture mechanism, this design seeks to land on a larger NEA and retrieve a boulder off of its surface. The Option B team has developed a detailed and feasible mission concept that preserves many aspects of...
Topics: NASA Technical Reports Server (NTRS), ROBOTICS, MISSION PLANNING, ASTEROID MISSIONS, NEAR EARTH...