Journal of Research of the National Bureau of Standards
Topics: High temperature polymorph, single crystals, stabilization, tantalum oxide
Journal of Research of the National Bureau of Standards
Topics: Low temperature polymorph, single crystals, stabilization, tantalum oxide
251
251
May 22, 2011
05/11
by
NON
texts
eye 251
favorite 0
comment 0
An exercise device, especially suitable for zero gravity workouts, has a collapsible chamber which generates negative pressure on the lower portion of a body situated therein. The negative pressure is generated by virtue of leg, hand and shoulder interaction which contracts and expands the chamber about the person and by virtue of air flow regulation by valve action.
Topics: ALUMINUM OXIDES, ANEMOMETERS, HIGH SPEED, THIN FILMS, TURBULENCE, SINGLE CRYSTALS
196
196
Jun 19, 2010
06/10
by
Lugakov, P. F.; Sevchenko, A. N.; Tkachev, V. D.; Yukhnevich, A. V
texts
eye 196
favorite 0
comment 0
Thermal stability of silicon having structural modifications due to radiation
Topics: IRRADIATION, PHOTOCONDUCTIVITY, SILICON, SINGLE CRYSTALS, THERMAL STABILITY, IRRADIATION, SILICON,...
742
742
Jul 25, 2010
07/10
by
Couzens, David A.; King, Joseph H
texts
eye 742
favorite 0
comment 0
Supplement 3 of the Interplanetary Medium Data Book contains a detailed discussion of a data set compilation of hourly averaged interplanetary plasma and magnetic field parameters. The discussion addresses data sources, systematic and random differences, time shifting of ISEE 3 data, and plasma normalizations. Supplement 3 also contains solar rotation plots of field and plasma parameters. Supplement 3A contains computer-generated listings of selected parameters from the composite data set....
Topics: DIAMONDS, SYNTHESIS (CHEMISTRY), VAPOR PHASE EPITAXY, CARBON, CRYSTAL GROWTH, SINGLE CRYSTALS
An electron paramagnetic resonance study of X-ray irradiated single crystals of lithium acetate dehydrate and mercuric acetate has been made. The CH(2)CO(2) radical has been identified in lithium acetate dehydrate at liquid nitrogen temperature. The HCH angle was found to be 118(o)2 + 2.0(o). The principal elements of the hyperfine tensor and the g tensor were calculated. Mercuric acetate irradiates at liquid nitrogen temperature showed the presence of two CO(2) species. Spectra at -80 degrees...
Topics: Physics, Lithium acetate dihydrate, Mercuric acetate, EPR, ESR, Irradiated single crystals, Radical
During the past three years, we have designed and constructed an easily modifiable mini-MBE system that is entirely dedicated to the study of novel materials thin film growth. Using this system, our group has demonstrated the high quality synthesis of three-dimensional topological insulator (TI) thin films the Bi2Te3 family. Bi2Te3 and Bi2Se3 have simple single Dirac cone surface band structures and relatively large bulk band gaps which make them particularly attractive for room temperature...
Topics: DTIC Archive, STANFORD UNIV CA, *MATERIALS, *TOPOLOGY, SINGLE CRYSTALS, SYNTHESIS, THIN FILMS
Single Crystal V6013 positive material is being evaluated in this laboratory for the intercalation of polyvalent cations such as Li, Na Zn, Cu etc. The study involves 1) growth of V6O13 single crystals, 2) the reversible behavior V6O13 towards polyvalent cations, 3) evaluation of the thermodynamic EMF vs composition curves and 4) XRD and SEM determination in order to evaluate any structural changes occurring in the V6O13 as a result of cation intercalation. Keywords: Single crystals, Vanadium...
Topics: DTIC Archive, Munshi, M Z, MINNESOTA UNIV MINNEAPOLIS CORROSION RESEARCH CENTER, *SINGLE CRYSTALS,...
511
511
Jul 11, 2010
07/10
by
Stirn, R. J
texts
eye 511
favorite 0
comment 0
Recent developments at JPL have demonstrated that high conversion efficiencies are found with GaAs metal semiconductor solar cells when a particular heat treatment processing step is used to introduce an interfacial layer between the metal and the semiconductor. The new cell, called AMOS (Antireflection-Coated Metal-Oxide-Semiconductor), has open circuit voltages of 0.68-0.72 volts and efficiencies of 15% under terrestrial sunlight, as compared to values of 0.45-0.48 volts and 10%,...
Topics: GLASS, SILICON JUNCTIONS, SOLAR CELLS, ENERGY CONVERSION EFFICIENCY, PHOTOVOLTAIC CELLS,...
417
417
May 6, 2010
05/10
by
Brotzen, F. R.; Donoho, P. L.; Goodell, J. P. N.; Roberts, J. M
texts
eye 417
favorite 0
comment 0
Absorption of ultrasonic waves in lithium fluoride crystals
Topics: ABSORPTION, CRYSTALS, LITHIUM FLUORIDES, SINGLE CRYSTALS, ULTRASONIC RADIATION, ABSORPTION,...
170
170
Jul 11, 2010
07/10
by
Sheibley, D. W
texts
eye 170
favorite 0
comment 0
Developmental work resulted in a formulation which can improve the flexibility of the inorganic-organic-type separator for silver-zinc and nickel-zinc alkaline batteries. The effects of various fillers and reactive organic additives on separator volume resistivity are described. The effects of various inert fillers on the zinc dendrite penetration rate of the separator are shown. Conclusions regarding the operating mechanism of the separator are presented.
Topics: SPACE MANUFACTURING, TECHNOLOGY ASSESSMENT, LIQUID METALS, MAINTENANCE, SINGLE CRYSTALS, SPACE...
228
228
May 30, 2011
05/11
by
Ahrens, Thomas J
texts
eye 228
favorite 0
comment 0
A series of impact experiments on anhydrite CaSO4, in which vaporized sample accelerates an element in a velocity interferometer, generate velocity data that we have recently reanalyzed using an explicit entropy generating finite difference code. The shock pressure required from the onset, and complete vaporization of 30% porous and 70% crystal density anhydrite is 52 /- 3 and 122 /- 13 GPa. Using observed acid leaching in non-marine K/T ejecta in North America, and the sharp global increase in...
Topics: ELASTIC PROPERTIES, HIGH TEMPERATURE, MODULUS OF ELASTICITY, MULLITES, SINGLE CRYSTALS, ISOTROPY,...
365
365
May 23, 2011
05/11
by
Woon, David E
texts
eye 365
favorite 0
comment 0
A study of Mg-bearing compounds has been performed in order to determine molecular properties which are critical for planning new astronomical searches and laboratory studies. The primary focus of the work is on MgCCH, MgCCH(), and the isomers of MgC2. Only MgCCH has been identified in laboratory studies. Additional calculations have been carried out on MgH, MgNC, MgCN, and their cations in an effort to evaluate pathways to the formation of MgCCH and MgCCH() in the InterStellar Medium (ISM) or...
Topics: SINGLE CRYSTALS, BRAVAIS CRYSTALS, POLISHING, BOULES, BRIDGMAN METHOD, TRANSMISSION ELECTRON...
311
311
May 6, 2010
05/10
by
Garlick, R. G.; Probst, H. B
texts
eye 311
favorite 0
comment 0
Room-temperature slip in zone-melted tungsten single crystals - plastic deformation
Topics: METAL CRYSTALS, PLASTIC DEFORMATION, SINGLE CRYSTALS, SLIP, TUNGSTEN, PLASTIC DEFORMATION, SINGLE...
165
165
Jul 23, 2010
07/10
by
Dolapchiev, B
texts
eye 165
favorite 0
comment 0
No Abstract Available
Topics: BARIUM TITANATES, CERAMICS, ELECTROMECHANICS, SINGLE CRYSTALS, CRYSTAL STRUCTURE, DIELECTRIC...
367
367
Jul 6, 2010
07/10
by
LEUCHTER, O
texts
eye 367
favorite 0
comment 0
CHEMICAL EVOLUTION IN AN AIR-HYDROGEN MIXING LAYER WAS INVESTIGATED. THE CONFLUENCE OF TWO PARALLEL FLOWS OF AIR AND HYDROGEN WAS EXAMINED NUMERICALLY IN ORDER TO DETERMINE THE CONDITIONS OF SELF-IGNITION IN THE MIXING LAYER. THE CALCULATIONS SHOWED THAT THE REACTION ZONE IS LIMITED TO THE STOICHIOMETRIC REGION. FOR THE TWO STREAMS AT THE SAME TEMPERATURE, THE IGNITION LENGTH CAN BE EVALUATED BY NEGLECTING THE EFFECTS OF LATERAL DIFFUSION.
Topics: CERAMICS, SEMICONDUCTORS (MATERIALS), SINGLE CRYSTALS, ELECTRONIC EQUIPMENT, MICROGRAVITY...
368
368
May 23, 2011
05/11
by
Inomata, Yasushi; Feind, R. E.; Welch, R. M
texts
eye 368
favorite 0
comment 0
A new method based upon high-spatial-resolution imagery is presented that matches cloud and shadow regions to estimate cirrus and stratus cloud heights. The distance between the cloud and the matching shadow pattern is accomplished using the 2D cross-correlation function from which the cloud height is derived. The distance between the matching cloud-shadow patterns is verified manually. The derived heights also are validated through comparison with a temperature-based retrieval of cloud height....
Topics: CRYSTAL GROWTH, ORGANIC MATERIALS, DIRECTIONAL SOLIDIFICATION (CRYSTALS), OPTICAL MATERIALS, SINGLE...
291
291
May 23, 2011
05/11
by
Head, J. W
texts
eye 291
favorite 0
comment 0
The final report is comprised of 7 journal articles that were completed during the reporting period. Topics covered include:(1) photogeologic analysis of the Magellan stereo view of six coronae; (2) the ancient age of Maxwell Montes; (3) timescale of regional plains emplacement on Venus; (4) remote and local stresses and calderas on Mars; (5) lunar linear rilles; (6) stratigraphical constraints on the duration of tessera formation on Venus; and (7) the use of magnetic signatures in identifying...
Topics: SILICON, MICROMACHINING, MANAGEMENT SYSTEMS, TECHNOLOGIES, THREE DIMENSIONAL MODELS, SINGLE...
3,852
3.9K
Jun 21, 2010
06/10
by
NON
texts
eye 3,852
favorite 0
comment 0
Earth Resources Research Data Facility Index
Topics: CRYSTAL GROWTH, MICROGRAVITY, REACTION KINETICS, SINGLE CRYSTALS, CONFERENCES, MICROGRAVITY...
331
331
Jun 9, 2011
06/11
by
Gnoffo, Peter A.; Braun, Robert D.; Weilmuenster, K. James; Mitcheltree, Robert A.; Engelund, Walter C.; Powell, Richard W
texts
eye 331
favorite 0
comment 0
Postflight analysis of the Mars Pathfinder hypersonic, continuum aerodynamic data base is presented. Measured data include accelerations along the body axis and axis normal directions. Comparisons of preflight simulation and measurements show good agreement. The prediction of two static instabilities associated with movement of the sonic line from the shoulder to the nose and back was confirmed by measured normal accelerations. Reconstruction of atmospheric density during entry has an...
Topics: COPPER SELENIDES, SINGLE CRYSTALS, INDIUM COMPOUNDS, THIN FILMS, VAPOR DEPOSITION, X RAYS,...
242
242
Jun 1, 2010
06/10
by
Kunev, ST.; Marinova, KR.; Zhilov, N
texts
eye 242
favorite 0
comment 0
Effect of infrared irradiation on generation of electrical oscillations in cadmium sulfide monocrystals
Topics: CADMIUM SULFIDES, INFRARED RADIATION, IRRADIATION, OSCILLATIONS, SINGLE CRYSTALS, CADMIUM SULFIDE,...
The Final Report summarizes results of the research carried out in Russia, in M.V.Lomonosov Moscow State University and in A.F.Ioffe Physical-Technical Institute, St. Petersburg, during the period September 16, 2003 - September 15, 2004. The activities were concentrated on fabrication and characterization of physical properties of tellurium specimen grown in the A.F.Ioffe Institute under the conditions of the Contract. The theoretical investigation carried out in Moscow University according to...
Topics: DTIC Archive, MOSCOW STATE LOMONOSOV UNIV (RUSSIA), *ACOUSTOOPTICS, *SINGLE CRYSTALS, TUNED...
315
315
Jul 11, 2010
07/10
by
Glasgow, V. L
texts
eye 315
favorite 0
comment 0
Transient thermodynamic analyses have been made for the Kennedy Space Center (KSC) LOX loading system proposed for the space shuttle. The primary objective of these analyses is to predict the sensitivity of system performance to operating procedures, flow rate, temperature, and quality at the orbiter (ORB)/ground service equipment (GSE) interface. A further objective is to establish required system chill-down times. These analyses also include the prediction of transient thermodynamic...
Topics: CRYSTAL GROWTH, ENGINEERING, GALLIUM ARSENIDES, PRODUCTION, RIBBONS, POLYCRYSTALS, RADIO FREQUENCY...
286
286
Jun 21, 2010
06/10
by
Nagler, R. G
texts
eye 286
favorite 0
comment 0
Heat shield technology for extraterrestrial atmospheric entry
Topics: AEROSPACE ENVIRONMENTS, CRYSTAL GROWTH, WEIGHTLESSNESS, CONFERENCES, MELTING, MICROGRAVITY...
This is the final report of a project to develop techniques to prepare topological-insulator single crystals with sufficiently low bulk carrier density, and use them for the investigation of novel quantum phenomena in topological insulators for conceiving devices with unprecedented functionalities.
Topics: DTIC Archive, OSAKA UNIV (JAPAN), *ELECTRONS, *SPINTRONICS, INSULATION, LOW DENSITY, QUANTUM...
The growth of monoclinic Ga2O3 nanowires, nano-ribbons and nano-sheets has been investigated. Results indicate that high quality single crystal nanowires can be grown at 900?C using an Au catalyst, while single crystal nano-ribbons and nano-sheets require no metal catalyst for growth. Since bulk Ga2O3 is a promising material for high temperature gas sensing Ga2O3 nanowires and nano-ribbons may prove to enhance the sensing capability due to the high surface area. We have investigated the nature...
Topics: DTIC Archive, NAVAL RESEARCH LAB WASHINGTON DC, *NANOWIRES, ELECTRON SPIN RESONANCE,...
This report summarizes results supported by grant no. FA9550-09-1-0256. We report: 1. Development of new n-type dopants 2. Synthesis of semiconducting polymers based on acenes; 3. Tuning threshold voltage of organic transistors with self assembled monolayers; 4. A new method to achieve high mobility aligned single crystals over a large area; 5. The electronic skin concept.
Topics: DTIC Archive, STANFORD UNIV CA, *SEMICONDUCTORS, ELECTRONICS, POLYMERS, SELF ASSEMBLED MONOLAYERS,...
278
278
Jul 11, 2010
07/10
by
Anderson, R. L
texts
eye 278
favorite 1
comment 0
Experimental studies and models for In2O3/Si and SnO2/N-Si solar cells are considered for their suitability in terrestrial applications. The silicon is the active material, and the glass serves as the window to solar radiation, an antireflection coating of the Si, and a low resistance contact. Results show that amorphous windows or layers suppress photocurrent. The interfacial SiO2 layer suppresses photocurrent and increases series resistance. Suppression increases with illumination.
Topics: ELECTRIC DISCHARGES, PHOTOVOLTAIC EFFECT, SILICON JUNCTIONS, SOLAR CELLS, POLYCRYSTALS, PRODUCTION...
277
277
May 31, 2011
05/11
by
North, Stev
texts
eye 277
favorite 0
comment 0
The authors will report initial progress on the PIAudit project as a Research Resident Associate Program. The objective of this research is to prototype a tool for visualizing decision-making behaviours in autonomous spacecraft. This visualization will serve as an information source for human analysts. The current visualization prototype for PIAudit combines traditional Decision Trees with Weights of Evidence.
Topics: ACETIC ACID, CRYSTALS, SODIUM, THIOLS, SYNTHESIS (CHEMISTRY), IONS, CHEMICAL REACTIONS, X RAY...
Topics: DTIC Archive, Bicelli, L P, POLITECNICO DI MILANO (ITALY), *SINGLE CRYSTALS, *HYDROGEN, *CADMIUM,...
This invention is directed to a process for manufacturing a lightweight mirror from a single crystal material, such as single crystal silicon. As a near perfect single crystal material, single crystal silicon has much lower internal stress than a conventional material. This means much less distortion of the optical surface during the light weighting process. After being ground and polished, a single crystal silicon mirror is light weighted by removing material from the back side using...
Topics: NASA Technical Reports Server (NTRS), MIRRORS, SILICON, SINGLE CRYSTALS, OPTICAL EQUIPMENT,...
344
344
May 24, 2011
05/11
by
Kuo, K. S.; Weger, R. C.; Welch R. M
texts
eye 344
favorite 0
comment 0
The POLarizations and Directionality of the Earth's Reflectances (POLDER) instrument onboard the Japanese ADEOS satellite offers unique possibilities for the retrieval of aerosol parameters with its polarization and multi-angular capability. In this study we examine a technique that simultaneously retrieve multiple aerosol parameters, namely asymmetry factor, single scattering albedo, surface albedo, and optical thickness. using simulated POLDER reflectances. It is found that. over dark or...
Topics: NICKEL ALLOYS, CARBON, ADDITIVES, ALUMINUM ALLOYS, SINGLE CRYSTALS, IMPURITIES, INTERSTITIALS,...
209
209
Jun 21, 2010
06/10
by
NON
texts
eye 209
favorite 0
comment 0
Topographic corrections for lunar gravity data
Topics: COUPLING, ENERGY LEVELS, PYROLYTIC GRAPHITE, SINGLE CRYSTALS, SPIN-ORBIT INTERACTIONS, FERMI...
Creep tests on single crystal superalloy sheet specimens have shown a thickness dependent creep behavior. This is termed the thickness debit effect. To investigate the mechanism of thickness debit effect, isothermal, constant nominal stress creep tests at two test conditions 760 deg C/758MPa and 982 deg C/248MPa were performed on the uncoated sheet specimens of thicknesses 3.18mm and 0.51mm of PWA1484 Ni-base single crystal superalloy. It was observed that the dependence on specimen thickness...
Topics: DTIC Archive, UNIVERSITY OF NORTH TEXAS DENTON, *SINGLE CRYSTALS, *SUPERALLOYS, CREEP TESTS,...
229
229
Jun 18, 2010
06/10
by
NON
texts
eye 229
favorite 0
comment 0
Intermetallic testing to induce pest in single crystals by application of bending stress
Topics: BENDING FATIGUE, SINGLE CRYSTAL, BRITTLENESS, DISILICIDES, FRACTURE MECHANICS, INTERMETALLICS,...
421
421
Sep 20, 2010
09/10
by
Katnik, Gregory N.; Bowen, Barry C.; Davis, J. Bradley; Rivera, Jorge E.; Speece, Robert F
texts
eye 421
favorite 0
comment 0
The Debris Team developed and implemented measures to control damage from debris in the Shuttle operational environment and to make the control measures a part of routine launch flows. These measures include engineering surveillance during vehicle processing and closeout operations, facility and flight hardware inspections before and after launch, and photographic analysis of mission events. Photographic analyses of mission imagery from launch, on-orbit, and landing provide significant data in...
Topics: CERAMICS, TITANIUM OXIDES, TEMPERATURE EFFECTS, VACUUM, CRYSTALLOGRAPHY, INDENTATION, LUBRICATION,...
Rediscovered in the last decade, zinc oxide (ZnO) has attracted much attention as a promising material for many optoelectronics and to some extent microelectronics applications. However, a clear majority of effort expended in this fast developing field has been limited to heteroepitaxial structures grown on foreign substrates with lattice-parameter and thermal-expansion mismatch with ZnO which is detrimental. Recognizing the importance, the effort has shifted to include developing technologies...
Topics: DTIC Archive, VIRGINIA COMMONWEALTH UNIV RICHMOND SCHOOL OF ENGINEERING, *ZINC OXIDES, *CRYSTAL...
619
619
May 28, 2011
05/11
by
Newsome, Moses, Jr.; Paik, Hannah S
texts
eye 619
favorite 0
comment 0
This is the final report of the Science and Math for Everyone Project, a special grant that was received by Norfolk State University for two years (from June 1997 to August 1999) from NASA Langley Research Center's Office of Education. The Science and Math for Everyone Project is a quasi-experimental research/education intervention strategy developed to assist disabled, economically disadvantaged, female or ethnic minority students in public school systems whose needs have been traditionally...
Topics: BRIDGMAN METHOD, DIRECTIONAL SOLIDIFICATION (CRYSTALS), SINGLE CRYSTALS, MELTING, MELTS (CRYSTAL...
Topics: DTIC Archive, ILLINOIS UNIV AT URBANA-CHAMAPAIGN, *PLASTIC DEFORMATION, CREEP, SINGLE CRYSTALS,...
The purpose of this program was to evaluate LaB6 (210) and (310) oriented single crystal material for flat cathode applications and to deliver mounted LaB6 cathodes with (310) orientation for operation in RADC/Varian life test vehicles. To that end, the program was divided into four separate tasks, as shown in the report. This project was extended for 3 months past the initial program period, at not additional cost, so that unavoidable delays could be overcome and the project completed. The...
Topics: DTIC Archive, Davis,Paul R, OREGON GRADUATE CENTER BEAVERTON, *CATHODES, MATERIALS, SINGLE...
Optimization of the Multi-Blade Slurry wafering technique was evaluated. Several wafering runs were made. Sufficient data necessary for a complete cost analysis of each of the three types of saw utilized are provided.
Topics: NASA Technical Reports Server (NTRS), INGOTS, POLYCRYSTALS, SINGLE CRYSTALS, WAFERS, SILICON,...
Reciprocating piston piezohydraulic pumps were developed originally under the Smart Wing Phase II program (Lynch) and later under the CHAP program (CSA, Kinetic Ceramics). These pumps focused on 10 cm scale stack actuators operating below resonance and, more recently, at resonance. A survey of commercially available linear actuators indicates that obtaining power density and specific power greater than electromagnetic linear actuators requires driving the stacks at frequencies greater than 1...
Topics: NASA Technical Reports Server (NTRS), PIEZOELECTRIC ACTUATORS, PUMPS, RESONANCE, STACKS, PISTONS,...
The goals for the fabrication of single crystal silicon instrument mirrors include the following: 1) Develop a process for fabricating lightweight mirrors from single crystal silicon (SCS); 2) Modest lightweighting: 3X to 4X less than equivalent solid mirror; 3) High surface quality, better than lambda/40 RMS @ 633nm; 4) Significantly less expensive than current technology; and 5) Negligible distortion when cooled to cryogenic temperatures.
Topics: NASA Technical Reports Server (NTRS), FABRICATION, MIRRORS, SINGLE CRYSTALS, SILICON, CRYOGENIC...
Topics: DTIC Archive, YOUNG, A. P., BATTELLE MEMORIAL INST COLUMBUS OH, *SINGLE CRYSTALS, *ALUMINUM,...
2,980
3.0K
Jul 21, 2010
07/10
by
NON
texts
eye 2,980
favorite 0
comment 0
Various topics related to closed ecological systems are discussed. Space habitats, vegetative growth, photosynthesis, recycling, culture techniques, waste utilization bioreactors and controlled atmospheres on space stations are among the topics covered.
Topics: ADDITIVES, PLASTIC PROPERTIES, GRAIN BOUNDARIES, LOAD TESTS, MECHANICAL PROPERTIES, SINGLE...
318
318
May 30, 2011
05/11
by
Frink, Neal T.; Bonhaus, Daryl L.; Vatsa, Veer N.; Bauer, Steven X. S.; Tinetti, Ana F
texts
eye 318
favorite 0
comment 0
A new boundary condition is presented.for simulating the flow over passively porous surfaces. The model builds on the prior work of R.H. Bush to eliminate the need for constructing grid within an underlying plenum, thereby simplifying the numerical modeling of passively porous flow control systems and reducing computation cost. Code experts.for two structured-grid.flow solvers, TLNS3D and CFL3D. and one unstructured solver, USM3Dns, collaborated with an experimental porosity expert to develop...
Topics: YTTRIA-STABILIZED ZIRCONIA, SINGLE CRYSTALS, ZIRCONIUM OXIDES, YTTRIUM OXIDES, HIGH TEMPERATURE,...
This final report describes fundamental surface chemistry studies of photoluminescent metal oxide nanoparticles, toward the goal of demonstrating that changes in photoluminescence (PL) may be correlated to adsorption. One application of this research is the use of PL as a residual life indicator for air filtration media. In addition to adsorption studies on metal oxide nanoparticles, experiments were also carried out on well-defined single crystal surfaces. Research focused on exposure of...
Topics: DTIC Archive, MASSACHUSETTS UNIV LOWELL, *SURFACE CHEMISTRY, *PHOTOLUMINESCENCE, NANOPARTICLES,...
179
179
Jul 6, 2010
07/10
by
Onishchenko, E. L
texts
eye 179
favorite 0
comment 0
The use of manipulators to take geological samples and install measuring instruments on the ocean floor is discussed. Methods of performing complex operations using a manipulator connected by cable to the command element are presented.
Topics: ELASTIC PROPERTIES, POTASSIUM CHLORIDES, SINGLE CRYSTALS, SODIUM CHLORIDES, TEMPERATURE EFFECTS,...
Diamond impregnated abrasive cloth eliminated expensive diamond pastes and was economically disposed of to avoid contamination. Cloth was spunbonded nylon, but any napless fabric could be used. Cloth was sprayed with diamond abrasive gel.
Topics: NASA Technical Reports Server (NTRS), ABRASION, CARBON, DIAMONDS, DISPOSAL, METAL POLISHING, POWDER...
333
333
May 30, 2010
05/10
by
Ryan, J. A
texts
eye 333
favorite 0
comment 0
Ultrahigh vacuum adhesion of single crystal silicates - relation to lunar surface properties
Topics: ADHESION, SINGLE CRYSTAL, ULTRAHIGH VACUUM, LUNAR SURFACE, SILICATES, SINGLE CRYSTALS, SURFACE...
