21
21
Sep 18, 2009
09/09
by
NASA/Glenn Research Center
image
eye 21
favorite 0
comment 0
W-7 BEARING HOUSING HARDWARE
Photographed on 07/21/2000. -- Aerials of the 16 Foot Tunnel and the National Transonic Facility (NTF).
Topic: AERIAL PHOTOGRAPHY. -- WIND TUNNELS. --
46
46
Sep 17, 2013
09/13
by
G. Gavazzi; A. Boselli; J. M. Vilchez; J. Iglesias-Paramo; C. Bonfanti
texts
eye 46
favorite 0
comment 0
We report on the filament of ionized gas found at the NE periphery of M87, the second brightest elliptical galaxy in the Virgo cluster. The object lies at 3.16 arcmin (15.7 kpc) projected distance of the nucleus of M87, and it coincides in position with the Eastern radio lobe of M87. Long slit spectroscopy confirmed the gaseus nature of this object, showing Hbeta, [OIII], [OI], [NII], Halpha and [SII] lines, without any underlying continuum. The redshift of the object, V = 1170+-25 km/s, agrees...
Source: http://arxiv.org/abs/astro-ph/0007323v1
112
112
Jul 20, 2013
07/13
by
Luigi Foschini
texts
eye 112
favorite 0
comment 0
The current philosophy of impact hazard considers the danger from small asteroids negligible. However, several facts claim for a revision of this philosophy. In this paper, some of these facts are reviewed and discussed. It is worth noting that while the impact frequency of Tunguska-like objects seems to be higher than previously estimated, the atmospheric fragmentation is more efficient than commonly thought. Indeed, data recorded from airbursts show that small asteroids breakup at dynamical...
Source: http://arxiv.org/abs/astro-ph/9910109v3
37
37
Sep 17, 2013
09/13
by
Viktor K. Horváth; J. Rob Cressman; Walter I. Goldburg; Xiao-Lun Wu
texts
eye 37
favorite 0
comment 0
There are different ways for fluid flow to become turbulent, but usually many instabilities take place before that. Among these instabilities the transition from laminar flow to vortex shedding carries significant practical importance. Here we study a flow, where at high enough flow rates, vortices are generated by a fixed obstacle (cylinder), which penetrates a flowing, quasi-two dimensional soap film. We present experimental results that demonstrate that the transition from laminar flow to a...
Source: http://arxiv.org/abs/cond-mat/0007344v1
59
59
Sep 17, 2013
09/13
by
J. Gonzalez; F. Guinea; M. A. H. Vozmediano
texts
eye 59
favorite 0
comment 0
The effects of the electron-electron interactions in a graphene layer are investigated. It is shown that short range couplings are irrelevant, and scale towards zero at low energies, due to the vanishing of density of states at the Fermi level. Topological disorder enhances the density of states, and can lead to instabilities. In the presence of sufficiently strong repulsive interactions, p-wave superconductivity can emerge.
Source: http://arxiv.org/abs/cond-mat/0007337v1
Alistair Cooke evaluates the effect of the news blackouts surrounding the Israel and Palestinian peace talks and reflects on their joint history and turbulent relationship.
Topic: Podcast
53
53
Oct 30, 2009
10/09
by
NASA GSFC Scientific Visualization Studio
image
eye 53
favorite 0
comment 0
Scientists who want to monitor the state of our global climate may have to look no farther than the coastal ice that surrounds the Earth’s largest island.A NASA study of Greenland’s ice sheet reveals that it is rapidly thinning. In an article published in the July 21 issue of Science, Bill Krabill, project scientist at the NASA Goddard Space Flight Center’s Wallops Flight Facility, Wallops Island, VA, reports that the frozen area around Greenland is thinning, in some places, at a rate of...
Topics: Where -- Goddard Space Flight Center (GSFC), Where -- Wallops Flight Facility, Where -- Greenland
Source: http://visibleearth.nasa.gov/view_rec.php?id=655
102
102
Sep 17, 2013
09/13
by
Kenneth J. Mighell
texts
eye 102
favorite 0
comment 0
I investigate the use of Pearson's chi-square statistic, the Maximum Likelihood Ratio statistic for Poisson distributions, and the chi-square-gamma statistic (Mighell 1999, ApJ, 518, 380) for the determination of the goodness-of-fit between theoretical models and low-count Poisson-distributed data. I demonstrate that these statistics should not be used to determine the goodness-of-fit with data values of 10 or less. I modify the chi-square-gamma statistic for the purpose of improving its...
Source: http://arxiv.org/abs/astro-ph/0007328v1
91
91
Sep 17, 2013
09/13
by
Luca Mezincescu
texts
eye 91
favorite 0
comment 0
We outline the description of Quantum Mechanics with noncommuting coordinates within the framework of star operation. We discuss simple cases of integrability.
Source: http://arxiv.org/abs/hep-th/0007046v2
66
66
Sep 17, 2013
09/13
by
B. I. Belevtsev; I. V. Volchok; N. V. Dalakova; V. I. Dotsenko; L. G. Ivanchenko; A. V. Kuznichenko; I. I. Logvinov
texts
eye 66
favorite 0
comment 0
A bulk polycrystalline sample of YBa_{2}Cu_{3}O_{7-\delta} (\delta \approx 0.1) has been irradiated by \gamma-rays with ^{60}Co source. Non-monotonic behavior of T_c (defined as the temperature at which normal resistance is halved) with increasing irradiation dose \Phi (up to about 220 MR) is observed: T_c decreases at low doses (\Phi \leq 50 MR) from initial value (\approx 93 K) by about 2 K and then rises, forming minimum. At highest doses (\Phi \geq 120 MR) T_c goes down again. The...
Source: http://arxiv.org/abs/cond-mat/0007345v1
98
98
Sep 17, 2013
09/13
by
Denis Ullmo; Tatsuro Nagano; Steven Tomsovic; Harold U. Baranger
texts
eye 98
favorite 0
comment 0
We develop a semiclassical density functional theory in the context of quantum dots. Coulomb blockade conductance oscillations have been measured in several experiments using nanostructured quantum dots. The statistical properties of these oscillations remain puzzling, however, particularly the statistics of spacings between conductance peaks. To explore the role that residual interactions may play in the spacing statistics, we consider many-body systems which include electron-electron...
Source: http://arxiv.org/abs/cond-mat/0007330v1
67
67
Jul 24, 2013
07/13
by
G4TV.com
movies
eye 67
favorite 0
comment 0
Libor's Motocross Movie, X-Games '99
Topics: G4TV.com videos, G4TV.com unpublic video ids, techtv lost clips
Topics: KBS News, news9, KBS Nine O'Clock News
I: (Memphis Blues, On The Road Again, Cassidy, Some Forgotten Road, Black Throated Wind - missing), Revival, Scarlet Begonias II: Here Comes Sunshine -> Good Lovin’, Standing On The Moon, Next Time You See Me, Why Does Love Have To Be So Sad -> Low Spark Of High Heeled Boys, Keep On Growing -> One Way Out E: The Music Never Stopped
favoritefavoritefavoritefavorite ( 2 reviews )
Topic: knot, slipknot, mandaro, munzer, brigham, esposito, DeGuglielmo, Siegle
Source: SBD - cassette
Goin' To The Races, Groundspeed, Leavin', Don't Let Your Deal Go Down, Brown Mountain Light, Half Moon Rising, I Had Someone Else Before I Had You, On The Run, Eight Cylinders, Yes She Do (No She Don't), New Horizons Little Maggie, Mental Breakdown, "Shoot'n'Holler Contest", Ramblin' In The Rambler, Country Boy Rock'n'Roll, If I Lose, Whitewater, Reuben & Cherise, Mother's Only Son, Snow On The Pines > The Boatman > Whiskey Before Breakfast Encore: Granny Won't You Smoke...
favoritefavoritefavoritefavoritefavorite ( 1 reviews )
Topic: Live concert
Source: SBD > Tascam DA-P1
Federal Register 2000-07-21: Volume 65 , Issue 141. Digitized from IA1532619-06 . Previous issue: sim_federal-register-find_2000-07-20_65_140 . Next issue: sim_federal-register-find_2000-07-24_65_142 .
Topics: Public Administration, Government Documents, microfilm
Source: IA1532619-06
1,069
1.1K
Apr 7, 2003
04/03
by
Steve Kimock Band
etree
eye 1,069
favorite 3
comment 1
Set 1: d1t01 - A New Africa d1t02 - Footprints d1t03 - Why Can't We All Just Samba d1t04 - You're The One d2t01 - High And Lonesome d2t02 - Mr. Potato Head Set 2: d2t03 - Five B4 Funk d2t04 - Time Remembered d2t05 - Tangled Hangers d3t01 - Happy Birthday d3t02 - Whack d3t03 - Kissin' The Boo Boo d3t04 - It's Up To You d3t05 - Better Get It In Your Soul
favoritefavoritefavoritefavoritefavorite ( 1 reviews )
Topic: Live concert
Source: {onstage} AKG C61 (XY) > Tascam DA-P1 (DAT)
MMWR. Morbidity and Mortality Weekly Report 2000-07-21: Volume 49 , Issue 28. Digitized from IA1643709-01 . Previous issue: sim_mmwr-morbidity-mortality-weekly-report_2000-07-14_49_27 . Next issue: sim_mmwr-morbidity-mortality-weekly-report_2000-07-28_49_29 .
Topics: Public Health And Safety, Government Documents, microfilm
Source: IA1643709-01
78
78
Nov 4, 2004
11/04
by
http://homepage.mac.com/northernsw/
software
eye 78
favorite 0
comment 0
iConnect senses when you launch an internet application and can automatically connect for you. It knows when you quit your internet applications and can automatically disconnect for you. It is highly configurable and can easily be adapted to suit your Internet habits. Check out the Read Me for a brief overview of the program and browse the Users Manual.
Topic: macintosh
El Boletín Oficial de la República Argentina es el medio de comunicación escrito que el Estado Argentino, utiliza para publicar sus normas jurídicas (tales como leyes, decretos y reglamentos). https://es.wikipedia.org/wiki/Boletín_Oficial_de_la_República_Argentina
Topics: boletin, oficial, argentina, leyes
50
50
Sep 17, 2013
09/13
by
X. -J. Wang; M. -L. Yan
texts
eye 50
favorite 0
comment 0
We illustrate that both of massless pseudoscalar meson fields and constitutent quark fields are dynamical field degrees of freedom in energy region between chiral symmetry spontaneously broken scale and quark confinement scale. This physical configuration yields a renormalization running axial coupling constant $g_{_A}(\mu)$. The one-loop renormalization prediction $g_{_A}(\mu=m_{_N})=0.75$ and $g_{_A}(\mu=m_\pi)=0.96$ agree with $\beta$ decay of neutron and $\pi^0\to\gamma\gamma$ respectively....
Source: http://arxiv.org/abs/hep-ph/0007235v1
43
43
Sep 17, 2013
09/13
by
A. O. Jaunsen; J. Hjorth; G. Bjornsson; M. I. Andersen; H. Pedersen; K. Kjernsmo; H. Korhonen; P. M. Sorensen; E. Palazzi
texts
eye 43
favorite 0
comment 0
We present extensive multi-colour (UBVR_CI_C) photometry of the optical afterglow of GRB 980519. Upon discovery, 8.3 hours after the burst, the source was decaying as a power law, (t-t_GRB)^alpha, with a rapid decay rate alpha_1 = - 1.73+-0.04. About 13 hours after the burst a steepening of the light-curve to alpha_2 = -2.22+-0.04 was observed. Within the framework of current afterglow models, we argue that the rapid initial decline, the `break' in the light curve, and the spectral properties...
Source: http://arxiv.org/abs/astro-ph/0007320v1
85
85
Sep 17, 2013
09/13
by
C. Henkel; S. Potting
texts
eye 85
favorite 0
comment 0
A transport theory for atomic matter waves in low-dimensional waveguides is outlined. The thermal fluctuation spectrum of magnetic near fields leaking out of metallic microstructures is estimated. The corresponding scattering rate for paramagnetic atoms turns out to be quite large in micrometer-sized waveguides (approx. 100/s). Analytical estimates for the heating and decoherence of a cold atom cloud are given. We finally discuss numerical and analytical results for the scattering from static...
Source: http://arxiv.org/abs/quant-ph/0007083v1
Photographed on 07/21/2000. -- Aerials of the 16 Foot Tunnel and the National Transonic Facility (NTF).
Topic: AERIAL PHOTOGRAPHY. -- WIND TUNNELS. --
66
66
audio
eye 66
favorite 0
comment 0
Yes July 21 2000 Fleet Boston Pavilion Boston, MA Sharp 702 Minidisk Recorder, Core Sound Binaural Microphones, Bass Roll-Off Filter Flat disc 1 1.01 Young Person's Guide To The Orchestra - Close To The Edge (23.45) 1.02 Starship Trooper (12.36) 1.03 The Gates Of Delirium (24.28) 1.04 Leaves Of Green (5.57) disc 2 2.01 Heart Of The Sunrise (cut/tape flip) (10.36) 2.02 Ritual (27.56) 2.03 I've Seen All Good People (8.50) 2.04 Roundabout (10.34)
50
50
Sep 22, 2013
09/13
by
G. C. McLaughlin; J. N. Ng
texts
eye 50
favorite 0
comment 0
Theories which include neutrinos in large extra dimensions can be constrained by nuclear beta decay experiments. We examine universality of beta decay strengths of Fermi transitions. From this we find that the extra dimensional Yukawa coupling for a higher dimensional scale of 10 TeV, and two extra dimensions can be constrained to y < 1. Kinematic implications are also discussed. In particular, an extra dimensional scenario will produce a tritium decay endpoint spectrum with a different...
Source: http://arxiv.org/abs/nucl-th/0003023v2
Dnr 2000-07-21: Volume 30 , Issue 85. Digitized from IA1532309-05 . Previous issue: sim_dnr_2000-07-19_30_84 . Next issue: sim_dnr_2000-07-24_30_86 . Note:
Topics: Textile Industries And Fabrics, Trade Journals, microfilm
Source: IA1532309-05
3,083
3.1K
Feb 29, 2004
02/04
by
Hypnotic Clambake
etree
eye 3,083
favorite 4
comment 3
01. ??? 02. Square Dance Messiah 03. Yossel 04. Rasta Cyborg 05. Black Wedding 06. Big Black Eyes 07. Pork Brains 08. Smokin' Joe Clark 09. Zyde Coo Coo 10. Hava nagila 11. Tra La La 12. Tie Dye
favoritefavoritefavoritefavoritefavorite ( 3 reviews )
Topic: Live concert
Source: Matrix: SBD + Nak 300s > Mackie 1202 > D8
18
18
Oct 10, 2017
10/17
by
Directorate of Printing, Government of India
texts
eye 18
favorite 0
comment 0
The Gazette of India Extraordinary Gazette Published by the Directorate of Printing, Department of Publication, Ministry of Housing and Urban Affairs, Government of India Published in 2000, Issue Number 614 Ministry: Ministry of Home Affairs Subject: The powers conferred by section 3 of the Commissions of Inquiry Act, 1952 (60 of 1952)
Topic: Extraordinary Gazette of India
Numero intero del giorno 2000-07-21 dall'archivio storico La Stampa.
Topics: newspapers, giornali, La Stampa, Archivio Storico La Stampa
61
61
Sep 22, 2013
09/13
by
R. Stubner; R. Winkler; O. Pankratov
texts
eye 61
favorite 0
comment 0
We extend standard k.p theory to take into account periodic perturbations which are rapidly oscillating with a wavelength of a few lattice constants. Our general formalism allows us to explicitly consider the Bragg reflections due to the perturbation-induced periodicity. As an example we calculate the effective masses in the lowest two conduction bands of spontaneously ordered GaInP_2 as a function of the degree of ordering. Comparison of our results for the lowest conduction band to available...
Source: http://arxiv.org/abs/cond-mat/0001130v2
66
66
Sep 17, 2013
09/13
by
Francisco Vera
texts
eye 66
favorite 0
comment 0
We studied, theoretically, the optical absorption spectra for a slightly asymmetric double quantum well (DQW), in the presence of electric and magnetic fields. Recent experimental results for a 10.18/3.82/9.61 nm GaAs Al(_{.33} )Ga(_{.67})As DQW show clearly the different behavior in the luminescence peaks for the indirect exciton (IX) and left direct exciton (DX) as a function of the external electric field. We show that the presence of a peak near the (DX) peak, attributed to an impurity...
Source: http://arxiv.org/abs/cond-mat/0007346v1
57
57
Sep 17, 2013
09/13
by
P. Donohue; M. Tsuchiizu; T. Giamarchi; Y. Suzumura
texts
eye 57
favorite 0
comment 0
We study a half filled ladder of spinless fermions. We show that contrarily to a single chain, the ladder becomes a Mott insulator for arbitrarily small repulsive interactions. We obtain the full phase diagram and physical quantities such as the charge gap. We show that there is only a single insulating phase for repulsive interactions, regardless of the stength of the interchain hopping and single chain Mott gap. There is thus no confinement-deconfinement transition in this system but a simple...
Source: http://arxiv.org/abs/cond-mat/0007336v1
54
54
Sep 17, 2013
09/13
by
HM Chan
texts
eye 54
favorite 0
comment 0
The fermion generation puzzle has survived into this century as one of the great mysteries in particle physics. We consider here a possible solution within the Standard Model framework based on a nonabelian generalization of electric-magnetic duality. First, by constructing in loop space a nonabelian generalization of the abelian dual transform (Hodge *), one finds that a ``magnetic'' symmetry exists also in classical Yang-Mills theory dual to the original (``electric'') gauge symmetry....
Source: http://arxiv.org/abs/hep-th/0007016v2
130
130
Sep 24, 2013
09/13
by
Y. Polatoglu; M. Bolcal
texts
eye 130
favorite 0
comment 0
The purpose of this paper is to give exact value of the radius of starlikeness and distortion theorem, Koebe domain for the class of Janowski's starlike functions of complex order. We note that the class of Janowski's starlike functions of complex order contain many interesting subclasses of univalent functions.
Source: http://arxiv.org/abs/math/0007133v1
40
40
Sep 17, 2013
09/13
by
A. Capella; C. A. Salgado
texts
eye 40
favorite 0
comment 0
We review the two sources of hyperon enhancement in the dual parton model: strings originating from diquark-antidiquark pairs in the nucleon sea and net baryons containing two or three sea quarks with a yield controlled by the observed stopping. We show that adding final state interactions (including strangeness exchange reactions as well as the inverse reactions required by detailed balance) with a single averaged cross-section $\sigma=0.2$ mb, we can explain the observed hyperon enhancement...
Source: http://arxiv.org/abs/hep-ph/0007236v1
51
51
Sep 17, 2013
09/13
by
K. Matsuda; N. Takeda; T. Fukuyama; H. Nishiura
texts
eye 51
favorite 0
comment 0
We illustrate the graphical method that gives the constraints on the parameters appearing in the neutrino oscillation experiments and the neutrinoless double beta decay. This method is applicable in three and four generations. Though this method is valid for more general case, we examine explicitly the cases in which the CP violating factors take $\pm 1$ or $\pm i$ in the neutrinoless double beta decay for illustrative clearance. We also discuss some mass matrix models which lead to the above...
Source: http://arxiv.org/abs/hep-ph/0007237v1
Topic: The Times News (Idaho Newspaper)
21
21
Sep 18, 2009
09/09
by
NASA/Glenn Research Center
image
eye 21
favorite 0
comment 0
W-7 BEARING HOUSING HARDWARE
Atari Online News Etc. (A-ONE) Volume 2 Issue 29 published 21 July 2000.
Topics: Atari ST, Atari, e-zine
43
43
Sep 17, 2013
09/13
by
J. F. Olive; D. Barret
texts
eye 43
favorite 0
comment 0
Using RXTE/PCA data, we have studied the time lag (TL) properties of a sample of four accreting neutron stars (NSs), namely 1E1724-3045, GS1826-238, 4U1705-44 and 4U1728-34. The aim of the study is to identify the spectral and timing state(s) in which TLs are detected. Along this work, we have discovered TLs between the 7-40 keV hard and 2-7 keV soft photons from 4U1728-34 with amplitudes similar to those seen in 4U1705-44 (i.e. 2 ms at 5 Hz). We show that the TLs are only seen in the low...
Source: http://arxiv.org/abs/astro-ph/0007325v1
86
86
Sep 17, 2013
09/13
by
D. V. Efremov; M. S. Mar'enko; M. A. Baranov; M. Yu. Kagan
texts
eye 86
favorite 0
comment 0
High order perturbation theory corrections to the superfluid transition temperature in a weakly interacting Fermi gas with repulsive interaction are calculated. This involves calculating the contributions of third and fourth order diagrams in the gas parameter and taking into account effects of retardation. The contributions from both second, third and fourth orders result in the effective attraction in p-wave channel. It is shown that the critical temperature is mainly determined by second and...
Source: http://arxiv.org/abs/cond-mat/0007334v1
57
57
Sep 17, 2013
09/13
by
A. G. Agnese; M. La Camera
texts
eye 57
favorite 0
comment 0
We introduce, by means of the Brans-Dicke scalar field, space-time fluctuations at scale comparable to Planck length near the event horizon of a black hole and examine their dramatic effects.
Source: http://arxiv.org/abs/gr-qc/0007058v1
76
76
Sep 17, 2013
09/13
by
S. Manoff
texts
eye 76
favorite 0
comment 0
The Lagrangian formalism for tensor fields over differentiable manifolds with contravariant and covariant affine connections (whose components differ not only by sign) and metrics [$(\bar{L}_n,g)$-spaces] is considered. The functional variation and the Lie variation of a Lagrangian density, depending on components of tensor fields (with finite rank) and their first and second covariant derivatives are established. A variation operator is determined and the corollaries of its commutation...
Source: http://arxiv.org/abs/gr-qc/0007056v1
51
51
Sep 17, 2013
09/13
by
Marc Vanderhaeghen
texts
eye 51
favorite 0
comment 0
A review is given of the very recent developments in the fields of real and virtual Compton scattering off the nucleon. Both real and virtual Compton scattering reactions are discussed at low outgoing photon energy where one accesses polarizabilities of the nucleon. The real Compton scattering at large momentum transfer is discussed which is asymptotically a tool to obtain information on the valence quark wave function of the nucleon. The rapid developments in deeply virtual Compton scattering...
Source: http://arxiv.org/abs/hep-ph/0007232v1
73
73
Sep 17, 2013
09/13
by
Denis Auroux
texts
eye 73
favorite 0
comment 0
After reviewing recent results on symplectic Lefschetz pencils and symplectic branched covers of CP^2, we describe a new construction of maps from symplectic manifolds of any dimension to CP^2 and the associated monodromy invariants. We also show that a dimensional induction process makes it possible to describe any compact symplectic manifold by a series of words in braid groups and a word in a symmetric group.
Source: http://arxiv.org/abs/math/0007130v1
677
677
Feb 5, 2007
02/07
by
Democracy Now!
audio
eye 677
favorite 0
comment 0
Democracy Now! radio program for Friday, July 21, 2000
Source: Television broadcast
81
81
Sep 17, 2013
09/13
by
C. J. Hamer; M. Samaras; R. J. Bursill
texts
eye 81
favorite 0
comment 0
A 'forward walking' Green's Function Monte Carlo algorithm is used to obtain expectation values for SU(3) lattice Yang-Mills theory in (3+1) dimensions. The ground state energy and Wilson loops are calculated, and the finite-size scaling behaviour is explored. Crude estimates of the string tension are derived, which agree with previous results at intermediate couplings; but more accurate results for larger loops will be required to establish scaling behaviour at weak coupling.
Source: http://arxiv.org/abs/hep-lat/0007031v1
49
49
Sep 22, 2013
09/13
by
A. G. Rossberg
texts
eye 49
favorite 0
comment 0
A mechanism for the localization of spatially periodic, self-organized patterns in anisotropic media which requires systems extended in all three spatial dimensions is presented: When the anisotropy axis is twisted the pattern becomes localized in planes parallel to the anisotropy axis. An analytic description of the effect is developed and used to interpret recent experiments in the high-frequency regime of electroconvection by Bohatsch and Stannarius [Phys. Rev. E {\bf 60}, 5591 (1999)]. The...
Source: http://arxiv.org/abs/nlin/0004014v2
