In order to overcome the challenges that an anisotropic noise field poses for underwater target tracking, we conduct an onboard estimation of the horizontal noise directionality in the real-time processing suite of an autonomous underwater vehicle (AUV) towing a horizontal line array. The estimation of the noise directionality is a precursor to another adaptive behavior: optimizing tracking capability of a towed array by choosing a particular heading that minimizes the detection level in the...
Topics: Submersibles, Anisotropy
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2.0
Apr 22, 2022
04/22
by
International Symposium on Plasticity and its Current Applications (3rd : 1991 : Grenoble, France)
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xxii, 701 p. : 25 cm
Topics: Plasticity -- Congresses, Anisotropy -- Congresses
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2.0
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316 p. : 26 cm
Topics: Superconductors -- Congresses, Anisotropy -- Congresses
180
180
Jun 3, 2011
06/11
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Liu, Zhao-Yang; McGill, Matthew; Hu, Yong-Xiang; Hostetter, Chris; Winker, David; Vaughan, Mar
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This letter proposes the use of solar background radiation scattered by ice clouds for validating space lidar depolarization calibration. The method takes advantage of the fact that the background light scattered by ice clouds is almost entirely unpolarized. The theory is examined with Cloud Physics Lidar (CPL) background light measurements.
Topics: ANISOTROPY, MAGNETIC TAPES, PARTICLES, MAGNETIZATION
Understanding how forces propagate through granular media is broadly relevant in acoustic and non-acoustic warfare applications. For example, sediment type can impact acoustic propagation during bottom bounce events that undersea assets use for navigation. There is not yet a complete theory of force propagation in granular media due to several nonlinearities, like friction and Hertzian contact interactions. Of particular interest is the crossover region between linear and nonlinear regimes,...
Topics: granular material, nonlinearity, photoelastic, anisotropy
Typescript
Topics: Plasticity, Anisotropy, Strains and stresses
Journal of Research of the National Institute of Standards and Technology
Topics: micromagnetics, exchange coupling, magnetocrystalline anisotropy
The literature analysis of propagation models has investigated different prediction methods to identify appropriate techniques for this purpose. The predictive algorithms of these models usually deal with large amounts of data, requires a sophisticated computer processing and knowledge, sometimes detailed of the topography of the terrain. For being based on measurements performed at specific locations, empirical models tend not to provide very reliable results when applied to regions that...
Topics: Anisotropy, Geostatistics, Kriging, Semivariogram, Wireless.
An optical, contact-free method for measuring minority carrier diffusion lengths is developed and demonstrated for a range of semiconductor materials used in high efficiency triple junction solar cells. This method uses a Scanning Electron Microscope (SEM) coupled with an optical microscope. The diffusion lengths, combined with minority carrier lifetime measured via time-resolved photoluminescence, allow for the computation of minority charge carrier mobility. The technique uses images to...
Topics: Physics, Photoluminescence, Solar cells, Anisotropy
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Apr 21, 2022
04/22
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International Workshop on Seismic Anisotropy (6th : 1994 : Trondheim, Norway)
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vi, 763 p. : 28 cm
Topics: Seismic waves -- Congresses, Anisotropy -- Congresses
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3.0
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vi, 170 p. : 24 cm
Topics: Zinc sulfide crystals, Luminescence, Anisotropy
Knowledge of the elastic properties of composite materials can be an invaluable tool for both the quality assurance of manufacturing techniques and design verification. Recent advancements in ultrasonic velocity measurements have demonstrated the ability to recover elastic properties in anisotropic laminates. A simplified experimental setup was investigated to recover the elastic properties based on the flexural wave propagation in anisotropic laminates. The initial objective of this thesis was...
Topics: Anisotropy, Composites, Flexural waves, Elastic constants
Dissertation supervisor, Hung-Mou Lee
Topics: ELECTROMAGNETIC SCATTERING, BACKSCATTERING, ANISOTROPY, ELECTRICAL IMPEDANCE
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115
Oct 4, 2015
10/15
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Yu, Chen-Kuo.
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Dissertation supervisor, Hung-Mou Lee
Topic: ELECTROMAGNETIC SCATTERING,BACKSCATTERING,ANISOTROPY,ELECTRICAL IMPEDANCE
Journal of Research of the National Bureau of Standards
Topics: Chemical anisotropy, chemisorption, oxidation, pyrolytic graphite
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31
Jun 22, 2017
06/17
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Gurski, K. F.; McFadden, G. B.
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Topics: Anisotropy, Capillarity, Magnetohydrodynamic instabilities, Fluid dynamics
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11
Jun 17, 2019
06/19
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International Symposium on Anisotropy in Single-Crystal Refractory Compounds (1967 : Dayton, Ohio)
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2 v. : 26 cm
Topics: Anisotropy -- Congresses, Refractory transition metal compounds -- Congresses
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50
May 25, 2017
05/17
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Cahn, J. W.; Han, S. C.; McFadden, G. B.
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Topics: Anisotropy, Binary systems (Metallurgy), Mean field theory
1,341
1.3K
May 30, 2011
05/11
by
Smart, D. F.; Shea, M. A
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The access of charged particles to the earth from space through the geomagnetic field has been of interest since the discovery of the cosmic radiation. The early cosmic ray measurements found that cosmic ray intensity was ordered by the magnetic latitude and the concept of cutoff rigidity was developed. The pioneering work of Stoermer resulted in the theory of particle motion in the geomagnetic field, but the fundamental mathematical equations developed have 'no solution in closed form'. This...
Topics: ANISOTROPIC PLATES, ANISOTROPY, BUCKLING, LAMINATES, THERMAL EXPANSION
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162
Jun 13, 2011
06/11
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Stajner, Ivanka; Wargan, Krzysztof; Chang, Lang-Ping; yashi, Hiroo; Pawson, Steve; Nakajima, Hideak
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Ozone data from the Improved Limb Atmospheric Spectrometer-II (ILAS-II) were included in addition to other satellite observations in the ozone assimilation system at the Global Modeling and Assimilation Office (GMAO) of NASA/Goddard. The control run assimilated data from NOAA 16 Solar Backscatter Ultraviolet/2 (SBUV/2) and Polar Ozone and Aerosol Measurement III (POAM III) instruments. Persistent impacts over Antarctica and transient impacts over northern middle and high latitudes are seen from...
Topics: MICROWAVE ANISOTROPY PROBE, ANISOTROPY, MICROWAVES, IONIZING RADIATION, LINEAR INTEGRATED CIRCUITS,...
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891
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INFORMATION ABOUT THE PHYSICAL PROPERTIES OF THE ATMOSPHERES AND THE INTERNAL STRUCTURE OF THE GIANT PLANETS (JUPITER, SATURN, URANUS, AND NEPTUNE) IS PRESENTED. THIS INFORMATION IS BASED MAINLY ON THE DATA OF ASTROPHYSICAL OBSERVATIONS AND IN PART ON THEORETICAL CALCULATIONS. ALL THE DATA ARE PRESENTED IN THE FORM OF TABLES AND GRAPHS, ACCOMPAINED ONLY BY SHORT EXPLANATIONS. AN EXTENSIVE GUIDE TO THE LITERATURE ON THE GIANT PLANETS IS ALSO PRESENTED, INCLUDING MAINLY PAPERS PUBLISHED DURING...
Topics: ANISOTROPY, BACKGROUND RADIATION, BOLOMETERS, COSMOLOGY, RELATIVISTIC VELOCITY
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301
May 6, 2010
05/10
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Katzin, J. C.; Katzin, M
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No Abstract Available
Topics: ANISOTROPY, CYLINDRICAL BODIES, HOMOGENEITY, IMPEDANCE, MAGNETIC PROPERTIES
The goal of this study is to look at how texture changes as a function of temperature in a mixture of liquid crystalline materials. The effects of temperature on optical anisotropy measurements have also been studied. The organic liquid crystal compound 4-(2-methylbytyl) phenyl 4-(4-octylphenyl) benzoate(CE8) is a ferroelectric liquid crystal composed of rod-like molecules that exhibits a chiral smectric phase with stable Blue phase, Diethyl 4,4lAzoxydicinnamate ex hibits a cholesteric liquid...
Topics: Ternary Mixture, Phase Transition, Optical Texture & Optical Anisotropy
The goal of this study is to look at how texture changes as a function of temperature in a mixture of liquid crystalline materials. The effects of temperature on optical anisotropy measurements have also been studied. The organic liquid crystal compound 4-(2-methylbytyl) phenyl 4-(4-octylphenyl) benzoate(CE8) is a ferroelectric liquid crystal composed of rod-like molecules that exhibits a chiral smectric phase with stable Blue phase, Diethyl 4,4lAzoxydicinnamate ex hibits a cholesteric liquid...
Topics: Ternary Mixture, Phase Transition, Optical Texture & Optical Anisotropy
The unique material properties of aluminium material have gained more attention in automotive and aerospace industries owing to its lightweight and high strength, without compensating the safety and performance. In order to develop efficient Finite Element models of tubular elements which undergone prior forming processes, a constitutive material model should be utilized for aluminum alloy sheet to account for plastic anisotropy. The principal aim of the present article is to describe the...
Topics: Crashworthiness, LS-DYNA, Energy Absorbers, Simulation, Anisotropy & Forming
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xiii, 322 p. : 24 cm
Topics: Optical materials -- Congresses, Organic compounds -- Congresses, Anisotropy -- Congresses
The goal of this research is to look at how texture changes as a function of temperature in a mixture of liquid crystalline materials. Also the temperature variations of refractive indices of sample is studied. Theorganic compound Diethyl4- 4lHexaloxy Azoxy Benzoate exhibits Smectic liquid crystalline phase and the compound cholesterylnonanoateis cholesteric liquid crystal. Mixture of 70% Diethyl 4-4lHexaloxy Azoxy Benzoate and 30% of cholesterylnonanoatemolecules exhibits cholesteric, SmA and...
Topics: Binary Mixture, Phase Transition, Optical Texture & Optical Anisotropy
Surface Effects In Magnetic Nanoparticles
Topics: magnetic, surface, anisotropy, magnetization, particle, field, particles, spin, temperature, spins,...
This volume was digitized and made accessible online due to deterioration of the original print copy.
Topics: Scattering (Physics), Numerical analysis--Computer programs, Transport theory, Anisotropy
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May 23, 2022
05/22
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Schclar, N. A
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142 p. : 25 cm
Topics: Boundary element methods, Anisotropy, Engineering mathematics, Boundary value problems
A quarter 3D model of cornea-aqueous humor employing elastic anisotropic formulation in collaboration with Goldmann appalanation tonometer (GAT) action is investigated in order to examine the relation between the material property variation and the deviation from the true pressure inside the human eye utilizing finite element method. In addition to that, the effect of the corneal thickness variation has also been studied. However, the clinical experimental data show tremendous variation between...
Topics: intraocular pressure, tonometer, corneal thickness, anisotropy, finite element method
Journal of Research of the National Bureau of Standards
Topics: Anisotropy, crystallographic orientation, hot carriers, semiconductor breakdown, silicon diodes
Bell System Technical Journal, 16: 2. April 1937 pp 247-248. Abstracts of Technical Papers from Bell System Sources.
Topics: anisotropy, positions, magnetization, cochlea, measurement, stimulation, torque, calculated,...
Bell System Technical Journal, 57: 2. February 1978 pp 475-477. Papers by Bell Laboratories Authors.
Topics: ieee, raman, electron, dielectric, waveguide, tunable, anisotropy, conduction, electronic, solid
Journal of Nuclear Physics, Material Sciences, Radiation and Applications Vol. 1, No. 1 August 2013 pp. 79–96
Topics: Alignment, cross-section, anisotropy, angular distribution and x-ray fluorescence
An important goal of this proposal is to explore the physics of heteronuclear models: coupled atom-molecule systems where heteronuclear or polar molecules are formed from atoms of distinct species via interspecies Feshbach resonance or photoassociation. The studies conducted to fulfill this goal include the generalization of the technique of the stimulated Raman adiabatic passage to multi-level atom-molecule systems, the detection of exotic phases using electromagnetically induced transparency,...
Topics: DTIC Archive, ROWAN UNIV GLASSBORO NJ, *MOLECULES, ANISOTROPY, ATOMS, PHONONS
Main buckling and post-buckling analysis methods for composite structures are presented, along with the discussion on their potential challenges in handling the accuracy of prediction. Common buckling and post-buckling behaviors of composite structures are described, and the capabilities of corresponding analysis techniques are reviewed. Compared with the structures made of metals, the anisotropy of composite materials is one of the key difference which could be considered in ...
Topics: Composite Structures, Buckling, Post-Buckling, Structural Analysis, Shell Structures, Anisotropy
Bell System Technical Journal, 32: 5. September 1953 pp 1257-1265. Abstracts of Bell System Technical Papers Not Published in this Journal.
Topics: bell, telephone, anisotropy, magnetic, magnetostriction, frequency, technical, abstracts, exchange,...
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278
Jun 1, 2011
06/11
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Cruthirds, John E
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A habitat for long duration missions which utilizes Advanced Life Support (ALS), the Bioregenerative Planetary Life Support Systems Test Complex (BIO-Plex), is currently being built at JSC. In this system all consumables will be recycled and reused. In support of this effort, a menu is being planned utilizing ALS crops that will meet nutritional and psychological requirements. The need exists in the food system to identify specific physical quantities that define life support systems from an...
Topics: TRANSPORT THEORY, SCATTERING, FLUX (RATE), LINEAR SYSTEMS, ALGORITHMS, ITERATION, DEFECTS,...
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227
Jun 9, 2011
06/11
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Hartung, Lin C.; Mitcheltree, Robert A.; Gnoffo, Peter A
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A nonequilibrium radiative heating prediction method has been used to evaluate several energy exchange models used in nonequilibrium computational fluid dynamics methods. The radiative heating measurements from the FIRE II flight experiment supply an experimental benchmark against which different formulations for these exchange models can be judged. The models which predict the lowest radiative heating are found to give the best agreement with the flight data. Examination of the spectral...
Topics: ULTRASONIC RADIATION, TRANSVERSE WAVES, GRAPHITE-EPOXY COMPOSITES, ANISOTROPY, COEFFICIENTS,...
515
515
May 23, 2011
05/11
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Gupta, Sandee
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Robust stability conditions obtained through generalization of the notion of energy dissipation in physical systems are discussed in this report. Linear time-invariant (LTI) systems which dissipate energy corresponding to quadratic power functions are characterized in the time-domain and the frequency-domain, in terms of linear matrix inequalities (LMls) and algebraic Riccati equations (ARE's). A novel characterization of strictly dissipative LTI systems is introduced in this report. Sufficient...
Topics: COSMIC RAYS, BACKGROUND RADIATION, ANISOTROPY, COSMIC DUST, FREQUENCIES, MICROWAVES, MULTIPOLES,...
On November 5, 2001, a processor reset occurred on board the Microwave Anisotropy Probe (MAP), a NASA mission to measure the anisotropy of the microwave radiation left over from the Big Bang. The reset caused the spacecraft to enter a safehold mode from which it took several days to recover. Were that to happen regularly, the entire mission would be compromised, so it was important to find the cause of the reset and, if possible, to mitigate it. NASA assembled a team of engineers that included...
Topics: NASA Technical Reports Server (NTRS), MICROWAVE ANISOTROPY PROBE, ANISOTROPY, MICROWAVES, IONIZING...
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315
Jun 21, 2010
06/10
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Johnson, M. S
texts
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No Abstract Available
Topics: FISSION PRODUCTS, NEUTRON EMISSION, NUCLEAR FISSION, ANISOTROPY, GAMMA RAYS, KINETIC ENERGY,...
1,323
1.3K
May 23, 2011
05/11
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Purba, Josua Bisuk Mubyarto; Horan, Sheli
texts
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This research investigates the effect of pulse shaping QPSK on bandwidth efficiency over a non-linear channel. This investigation will include software simulations and the hardware implementation. Three kinds of filters: the 5th order Butterworth filter, the 3rd order Bessel filter and the Square Root Raised Cosine filter with a roll off factor (alpha) of 0.25,0.5 and 1, have been investigated as pulse shaping filters. Two different high power amplifiers, one a Traveling Wave Tube Amplifier...
Topics: COSMOLOGY, MICROWAVES, ANISOTROPY, BACKGROUND RADIATION, RADIOMETERS, SKY SURVEYS (ASTRONOMY),...
Recently, non-destructive stress measurement method using magnetic anisotropy sensor has been applied to the construction site such as steel bridges and steel pipes. In addition, steel rib used in the tunnel construction site was found to be possible to measure the stress by non-destructive method. In this study, steel loading experiments using magnetic anisotropy sensor and strain gauges were conducted to derive stress sensitivity curve for general structural rolled steel SS400 that is...
Topics: Magnetic Anisotropy Sensor, Non-Destructive, Stress Measurement, Civil Structural Steel, Temporary...
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42
Jun 22, 2017
06/17
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McFadden, G. B.; Eggleston, J. J.; Voorhees, P. W.
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Topics: Dendritic crystals -- Mathematical models, Crystal growth -- Mathematical models, Anisotropy, Phase...
Journal of Research of the National Bureau of Standards
Topics: Emission anisotropy, fluorescence, fluorescence quantum yield, fluorescence standards, fluorimetry,...
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496
May 23, 2011
05/11
by
NON
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The Rayleigh Scattering Diagnostics Workshop was held July 25-26, 1995 at the NASA Lewis Research Center in Cleveland, Ohio. The purpose of the workshop was to foster timely exchange of information and expertise acquired by researchers and users of laser based Rayleigh scattering diagnostics for aerospace flow facilities and other applications. This Conference Publication includes the 12 technical presentations and transcriptions of the two panel discussions. The first panel was made up of...
Topics: BUCKLING, ANISOTROPIC PLATES, LOADS (FORCES), GRAPHITE-EPOXY COMPOSITES, ANISOTROPY, STRUCTURAL...
A summary of previous results of a high temperature superconducting switch based on the principle of the Superconducting Vector Switch (SVS) is discussed. This switch exploits the anisotropy in electrical conductivities of the high temperature superconductors. Underlying the SVS mechanism is the ability to turn on/off large superconducting currents confined to the Cu02 planes using lower currents flowing normal to the planes. Recent results using induced pulse currents to turn on/off the switch...
Topics: DTIC Archive, IAP RESEARCH INC DAYTON OH, *HIGH TEMPERATURE SUPERCONDUCTORS, ANISOTROPY, CURRENTS,...
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198
Jun 21, 2010
06/10
by
Casali, F
texts
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Group theory for neutron spectra analysis in coupled graphite-heavy water reactor
Topics: ANISOTROPY, PROPELLER BLADES, ROTORS, STABILITY, DAMPING, MODULUS OF ELASTICITY, MOMENTS OF...
