Relevant bibliographies by topics / Observation vla

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Observation vla'

Author: Grafiati
Published: 4 June 2021
Last updated: 7 February 2022

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Journal articles on the topic "Observation vla"

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Briggs, D. S., and T. J. Cornwell. "CLEAN/MEM Deconvolution Errors: Semicompact Sources." Symposium - International Astronomical Union 158 (1994): 212–14. http://dx.doi.org/10.1017/s0074180900107612.

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We have run a number of simulations investigating the limitations of noiseless point spread deconvolution with the VLA. On-source errors of more than .01 and off-source dynamic ranges of less than 15,000 were found for some parameters typical of high precision observations. Deconvolution errors were not confined to the support of the source, and limit the dynamic range in at least one VLA observation.
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Anantharamaiah, K. R., V. Radhakrishnan, D. Morris, M. Vivekanand, D. Downes, and C. S. Shukre. "A Search for Radio Recombination Lines of Positronium Near the Galactic Center." Symposium - International Astronomical Union 136 (1989): 607–16. http://dx.doi.org/10.1017/s0074180900187108.

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Several attempts were made to detect the possible radio recombination lines of positronium near the galactic center. An absorption feature seen at λ6cm, in the D-configuration of the VLA was not confirmed by subsequent observations at λ6cm and λ20cm using the B and C configurations of the VLA. An observation at λ3mm using the IRAM 30m telescope also did not detect any line. On the basis of one recombination line photon for every positron (McClintock 1984), our non-detections imply an upper limit to the positron production rate of < 3.1 × 1043 s−1, within about 2″ of the galactic center.
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Rodríguez, Luis F., Guillem Anglada, José M. Torrelles, J. Eduardo Mendoza-Torres, Aubrey D. Haschick, and Paul T. P. Ho. "VLA observations of water maser emission associated with SVS 13." Symposium - International Astronomical Union 206 (2002): 59–62. http://dx.doi.org/10.1017/s0074180900222067.

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The young stellar object SVS 13 has been proposed as the powering source of the HH 7-11 objects. Recent observations have revealed that in the radio continuum (3.6-cm) the source is a binary separated by about 0.3 in the east-west direction. We present Very Large Array observations, made in the highest angular resolution A configuration, of H2O maser emission toward this source. Our data show that the H2O spots appear to be segregated in two velocity groups: a group with radial velocity similar to that of the ambient cloud (VLSR ⋍ 8 km s−1) that is associated with the western radio source, and a blueshifted (by ∼20 km s−1) velocity group that is associated with the eastern radio source. We discuss the possible implications of this observation.
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Inoue, M., E. Fomalont, M. Tsuboi, F. Yusef-Zadeh, M. Morris, H. Tabara, and T. Kato. "VLA Polarization Observation of the Radio Arc at 15 Ghz." Symposium - International Astronomical Union 136 (1989): 269–74. http://dx.doi.org/10.1017/s0074180900186619.

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Polarization measurements of the radio Arc were made with the VLA at 15 GHz. High frequency polarimetry made with high spatial resolution minimizes Faraday depolarization and reveals polarized filaments which correspond to the predominant filaments of the radio Arc. We notice a peculiar linear feature in the polarization map (“thorns”) which suggests the presence of a second magnetic field system. The total intensity maps show no evidence for an interaction between the two field systems, so the thorns may be foreground magnetized structures. However, if the two magnetic field systems do interact, it would allow a model in which the acceleration of relativistic particles takes place at their intersection. The accelerated particles would flow toward both ends of the radio Arc, and account for the intrinsic polarization observed along the entire length of the system. Thermal electrons responsible for the Faraday depolarization occuring at longer wavelengths may be supplied by the interaction of the streams of relativistic particles with relatively dense, ambient thermal clouds.
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Caillault, Jean-Pierre. "VLA observation of the X-ray bright Hyades M dwarfs." Astronomical Journal 97 (January 1989): 163. http://dx.doi.org/10.1086/114964.

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Zhang, B., M. J. Reid, K. M. Menten, X. W. Zheng, and A. Brunthaler. "Distance and Size of the Red Hypergiant NML Cyg." Proceedings of the International Astronomical Union 8, S287 (January 2012): 427–28. http://dx.doi.org/10.1017/s1743921312007478.

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AbstractWe present astrometric results of phase-referencing VLBI observations of 22 GHz H2O maser and 43 GHz SiO maser emission towards the red hypergiant NML Cyg using VLBA. We obtained an annual parallax of 0.62 ± 0.04 mas, corresponding to a distance of 1.61+0.13−0.11 kpc. With a VLA observation in its largest (A) configuration at 43 GHz, we barely resolve the radio photosphere of NML Cyg, and find a uniform-disk diameter of 44 ± 16 mas.
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Goto, T. "Are E+A galaxies dusty-starbursts?: VLA 20 cm radio continuum observation." Astronomy & Astrophysics 427, no. 1 (October 25, 2004): 125–30. http://dx.doi.org/10.1051/0004-6361:20041250.

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Zhi-Yao, Yu. "Stellar Pulsation: (II) Multiple Distinct Shells." International Astronomical Union Colloquium 134 (1993): 169–72. http://dx.doi.org/10.1017/s0252921100014123.

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AbstractWe can find the conclusion with our analysis for VLA observation of OH maser and CO (2–1) emission line that they are distributed on some different distinct shells in the circumstellar envelope, respectively.
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Zijlstra, A., S. R. Pottasch, and C. Bignell. "A VLA Radio Continuum Survey of Planetary Nebulae." Symposium - International Astronomical Union 131 (1989): 60. http://dx.doi.org/10.1017/s007418090013760x.

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With the Very Large Array it is now possible to make high resolution radio continuum maps with sensitivity less than a milliJansky in an observation of only 5 minutes. We have used this so-called snapshot capability to measure about 400 PN north of declination −35. Most of the measurements were carried out at 6 cm. Some of the stronger sources were observed at several frequencies. Most sources were detected, however many nebulae were too weak to map in detail. The resolution ranges from 1.5″ to 1′, depending on the size of the PN. The selected PN have sizes in the range from 4″ to 6′.
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An, Tao, Xiao-Yu Hong, Wen-Xia Feng, and Jun-Hui Zhao. "A Peculiar Broad Line Radio Galaxy 1938-155: VLA Observation at 90 cm." Chinese Journal of Astronomy and Astrophysics 4, no. 6 (December 2004): 527–32. http://dx.doi.org/10.1088/1009-9271/4/6/527.

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Dissertations / Theses on the topic "Observation vla"

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André, Philippe. "Emission radio des etoiles pre-sequence principale du nuage rho ophiuchi : observations et interpretations." Paris 6, 1987. http://www.theses.fr/1987PA066240.

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L'observation radiointerferometrique du nuage moleculaire rho ophiuchi a permis de detecter une dizaine de sources stellaires emettant dans le domaine radio parmi la centaine d'etoiles jeunes de ce nuage. La nature de cette emission est magnetique et produite par effet gyrosynchrotron. Des eruptions magnetiques importantes provoquent la polarisation circulaire de l'emission de l'un des objets detectes et la variabilite de l'emission de deux autres etoiles. Plus generalement, ces observations semblent selectionner une population specifique d'etoiles tres jeunes, en presence d'un champ magnetique etendu et en l'absence d'environnement circumstellaire dense
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Dyba, Tadeusz. "Precision of cancer incidence predictions based on poisson distributed observations." Helsinki : University of Helsinki, 2000. http://ethesis.helsinki.fi/julkaisut/val/tilas/vk/dyba/.

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Karlsson, Roland. "18-cm VLA observations of OH towards the Galactic Centre." Licentiate thesis, Stockholms universitet, Institutionen för astronomi, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-122682.

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Flagg, Hammargren Karin, and Helena Stålberg. "Att organisera förskolan. : En kvalitativ undersökning om yttre och inre faktorer som påverkar pedagogers val i den pedagogiska verksamheten." Thesis, Uppsala universitet, Institutionen för pedagogik, didaktik och utbildningsstudier, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-175478.

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Sammanfattning Syftet med denna studie var att ta reda på hur yttre och inre faktorer påverkar pedagogens arbete och hur det styrs från huvudmannen ner till förskolan samt hur dessa ramar ger både möjligheter och hinder i den pedagogiska verksamheten. Vi har använt oss av två kvalitativa metoder, intervju och observation, för att få både en uppfattning om hur faktorerna upplevs och hur det faktiskt påverkar pedagogernas val. En fenomenografisk forskningsansats har använts där föresatsen var att få se hur pedagogerna uppfattar sin omgivande miljö. Vi har utfört 9 intervjuer fördelade på tre förskolechefer, tre förskollärare och tre barnskötare. 22 mindre observationer på två förskolor har även utförts. All datainsamling är gjord i samma kommun. Resultatet påvisar att det finns faktorer som påverkar pedagogers val men att det är upp till varje förskola om det blir en förutsättning eller ett hinder. Det skiljer sig mellan förskolor hur de organiserar sig efter organisation, ekonomi, tid, miljö och barngrupp.
Abstract The purpose of this study was to find out how external and internal factors affect the preschool teachers' work and how it is controlled from the principal down to the nursery and how these frames provide both opportunities and obstacles in the educational activities. We have used two qualitative methods, interviews and observation to provide both a sense of how factors are perceived and how it actually affects the preschool teachers' choice. It has used a phenomenographic research approach where the intention was to see how preschool teachers perceive their surrounding environment. We conducted 9 interviews divided with three preschool directors, three preschool teachers and three nannies. It has also been performed 22 minor observations on two preschools. All data collection is made in the same municipality. The result demonstrates that there are factors that affect preschool teachers' choices, but it is up to each preschool if it becomes a condition or an obstruction. It differs from preschools how to organize after the organization, finances, time, environment, and how they divide the children into group.
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Johnson, Cynthia L. "A contextual approach to learning collaborative behavior via observation." Doctoral diss., University of Central Florida, 2011. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4943.

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This dissertation describes a novel technique to creating a simulated team of agents through observation. Simulated human teamwork can be used for a number of purposes, such as expert examples, automated teammates for training purposes and realistic opponents in games and training simulation. Current teamwork simulations require the team member behaviors be programmed into the simulation, often requiring a great deal of time and effort. None are able to observe a team at work and replicate the teamwork behaviors. Machine learning techniques for learning by observation and learning by demonstration have proven successful at observing behavior of humans or other software agents and creating a behavior function for a single agent. The research described here combines current research in teamwork simulations and learning by observation to effectively train a multi-agent system in effective team behavior. The dissertation describes the background and work by others as well as a detailed description of the learning method. A prototype built to evaluate the developed approach as well as the extensive experimentation conducted is also described.
ID: 029809360; System requirements: World Wide Web browser and PDF reader.; Mode of access: World Wide Web.; Thesis (Ph.D.)--University of Central Florida, 2011.; Includes bibliographical references (p. 305-314).
Ph.D.
Doctorate
Electrical Engineering and Computer Science
Engineering and Computer Science
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Zhou, Yan Ph D. Massachusetts Institute of Technology. "Direct observation of Rydberg-Rydberg transitions via CPmmW spectroscopy." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/93038.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Chemistry, 2014.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 295-307).
Rydberg-Rydberg transitions of BaF molecules have been directly observed in our lab. The key to the experimental success is our ability to combine two powerful and new technologies, Chirped-Pulse millimeter-Wave spectroscopy (CPmmW) and a buffer gas cooled molecular beam source. CPmmW spectroscopy is a form of broadband (20 GHz bandwidth), high-resolution (50 kHz), free induction decay-detected (FID) spectroscopy with accurate relative intensities (10%), which is successfully applied to record Rydberg-Rydberg spectra of Calcium and Barium atoms. To extend CPmmW spectroscopy to a molecular system, I have constructed a new setup, a 20 K Neon buffer gas cooled molecular beam system, which generates of beam containing >1000 times more molecules and 10 times less translational velocity than a Smalleytype laser ablation supersonic beam source. Hundreds of molecular Rydberg-Rydberg transitions with high resolution and high dynamic range can now be recorded in a few hours. The success of this experiment suggests many applications in the near future, such as developing a user-friendly experimental method to study and manipulate Rydberg molecules, preparing a single molecular beam pulse that contains 108 state-selected core-nonpenetrating Rydberg molecules/molecular ions, and studying the electronic structure (dipole and quadrupole moments and polarizability) of the molecular ion core with unprecedented precision and completeness. In addition, strong collective effects (superradiance) have also been observed.
by Yan Zhou.
Ph. D.
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Ricci, L., H. Rome, P. Pinilla, S. Facchini, T. Birnstiel, and L. Testi. "VLA Observations of the Disk around the Young Brown Dwarf 2MASS J044427+2512." IOP PUBLISHING LTD, 2017. http://hdl.handle.net/10150/625755.

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We present multi-wavelength radio observations obtained with the VLA of the protoplanetary disk surrounding the young brown dwarf 2MASS J04442713+2512164 (2M0444) in the Taurus star-forming region. 2M0444 is the brightest known brown dwarf disk at millimeter wavelengths, making this an ideal target to probe radio emission from a young brown dwarf. Thermal emission from dust in the disk is detected at 6.8 and 9.1 mm, whereas the 1.36 cm measured flux is dominated by ionized gas emission. We combine these data with previous observations at shorter sub-mm and mm wavelengths to test the predictions of dust evolution models in gas-rich disks after adapting their parameters to the case of 2M0444. These models show that the radial drift mechanism affecting solids in a gaseous environment has to be either completely made inefficient, or significantly slowed down by very strong gas pressure bumps in order to explain the presence of mm/cm-sized grains in the outer regions of the 2M0444 disk. We also discuss the possible mechanisms for the origin of the ionized gas emission detected at 1.36 cm. The inferred radio luminosity for this emission is in line with the relation between radio and bolometric luminosity valid for for more massive and luminous young stellar objects, and extrapolated down to the very low luminosity of the 2M0444 brown dwarf.
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Tomsson, Lina, and Louise Svensson. "”Jag vill leka med min kompis”. ”Det går inte, det är ju fullt”. : En kvalitativ studie kring hur användandet av valtavlan synliggör barns delaktighet i förskolan." Thesis, Högskolan Kristianstad, Fakulteten för lärarutbildning, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:hkr:diva-22315.

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Detta examensarbete grundar sig på en kvalitativ studie med syfte att undersöka hur användandet av valtavlan synliggör barns delaktighet i förskolan. Eftersom det finns begränsad forskning kring valtavlan är barns delaktighet i förskolans verksamhet studiens utgångspunkt. Insamlade data utgörs från icke deltagande och öppna observationer som genomförts på en förskola vid olika tillfälle. Resultatet visar att användandet av valtavlan synliggör barns delaktighet på olika sätt. Pedagogerna på avdelningen sätter ramen för valtavlan genom att bestämma vilka rum som ska vara öppna och i vilken ordning barnen ska välja. Barnen får vara delaktiga i valen kring sin egen situation i form av att välja och byta rum på valtavlan. Med pedagogers stöd ansvarar barnen för att valtavlan ska fungera. En av svårigheterna resultatet visar är den strikta ramen valtavlan utgör då det endast finns ett begränsat antal platser i de olika rummen som sätts upp på valtavlan. Så fort ett rum blir fullt begränsas barnens delaktighet till att kunna påverka sin situation. En möjlighet valtavlan ger är att barnen får delta i beslutsfattandeprocesser då barnen själva kan påverka sina val. Utifrån Harts delaktighetsstega och Shiers modell visar resultatet att det finns både ett icke deltagande och ett riktigt deltagande i användandet med valtavlan. Resultatet visar också att barnens delaktighet varierar på de olika stegen och nivåerna.
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Rastello, Sara. "Multifrequency VLBA observations of two compact symmetric objects." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amslaurea.unibo.it/8913/.

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In this thesis the results of the multifrequency VLBA observations of the GPS 1944+5448 and the HFP J0111+3906 are presented. They are compact objects smaller than about 100 pc, completely embedded in the host galaxy. The availability of multi-epoch VLBI observations spanning more than 10 years, allowed us to compute the hot spot advance speed in order to obtain the kinematic age of both sources. Both radio sources are young, in agreement with the idea that they are in an early evolutionary stage. The spectral analysis of each source component, such as the lobes, the hot spots, the core and the jets, making a comparison with the theoretical ones is described. In addition the physical parameters derived from VLBA images as the magnetic field, the luminosity, the energy and the ambient medium density of both sources are discussed.
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Petit, Tillys. "Caractérisation de la circulation autour, au-dessus et à travers (via des zones de fracture) la dorsale de Reykjanes." Thesis, Brest, 2018. http://www.theses.fr/2018BRES0061/document.

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La dorsale de Reykjanes est une structure topographique majeure de l’océan Atlantique Nord qui s’étend de l’Islande à la zone de fracture de Charlie Gibbs. Située entre le bassin d’Islande et la mer d’Irminger, la dorsale de Reykjanes influence fortement la circulation du gyre subpolaire et est une porte d’entrée vers les zones de convection profondes. Cependant, la circulation et la répartition des masses d’eau à travers la dorsale de Reykjanes n’ont jamais été directement quantifiées, de sorte que la caractérisation de la connexion entre le bassin d’Islande et la mer d’Irminger est encore incomplète. Dans le cadre du projet « Reykjanes Ridge Experiment », nous avons été capables d’analyser la circulation autour, au-dessus et à travers la dorsale de Reykjanes. Essentiellement à partir de sections hydrographiques perpendiculaires et le long de l’axe de la dorsale, l’objectif de cette thèse a été de quantifier et caractériser la circulation 3-D et les propriétés des courants qui longent et traversent la dorsale de Reykjanes. Nous avons commencé par quantifier précisément le transport géostrophique à travers les sections, ce qui a permis d’améliorer le traitement des données S-ADCP. A travers la dorsale de Reykjanes, l’intensité de la branche du gyre subpolaire qui rejoint la mer d’Irminger a été estimée à 21.9 + 2.5 Sv en Juin – Juillet, avec des intensifications dans la zone de fracture Bight (BFZ) et à 59 – 62°N. Dans la BFZ, les masses d’eau profondes sont influencées par la bathymétrie, de sorte que leurs propriétés hydrologiques se modifient lorsqu’elles traversent la dorsale de Reykjanes. Enfin, la bathymétrie et la circulation horizontale cyclonique du bassin d’Islande contrôlent les courants qui longent la dorsale en bloquant certaines masses d’eau, et donc sont à l’origine de la répartition de ces masses d’eau le long de la dorsale. En plus des masses d’eau du Bassin d’Islande, le Courant d’Irminger comprend également des masses d’eau qui proviennent de la mer d’Irminger
The Reykjanes Ridge is a major topographic feature of the North-Atlantic Ocean that extends from Iceland to the Charlie Gibbs Fracture Zone. Located between the Iceland Basin and the Irminger Sea, the Reykjanes Ridge strongly influences the subpolar gyre circulation and is a gate toward the deep convection areas. However, the circulation and distribution across the Reykjanes Ridge has never been directly quantified such that the characterization of the connection between the Iceland Basin and the Irminger Sea is still incomplete. As part of the Reykjanes Ridge Experiment project, we were able to analyze the circulation around, above and across the Reykjanes Ridge. Mainly based on hydrographic sections along and perpendicular to the ridge axis, the aim of this PhD thesis was thus to characterize the 3-D circulation and properties of the flow along and across the Reykjanes Ridge.We started by accurately quantifying geostrophic transports across the sections, which led to improvements in the treatment of S-ADCP data. Across the Reykjanes Ridge, the intensity of the wesward branch of the subpolar gyre was estimated at21.9 + 2.5 Sv in June – July 2015 with intensifications at the Bight Fracture Zone (BFZ) and at 59 – 62°N. At the BFZ, overflow waters are influenced by the bathymetry such as their hydrological properties evolve as they cross the Reykjanes Ridge. Finally, both the bathymetry and the cyclonic horizontal circulation of the Iceland Basin regulate the evoluton of the along-ridge flows by blocking water masses, and thus shaping the water mass distribution over the Reykjanes Ridge. In addition to waters from the crossridge flow, the Irminger Current incorporates waters from the center of the Irminger Sea
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Books on the topic "Observation vla"

1

Lang, Kenneth R. VLA observations of the coronal plasma. [Washington, D.C: National Aeronautics and Space Administration, 1989.

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Lang, Kenneth R. A semi-annual progress report for NASA SMM guest investigator grant NAG 5-501 entitled simultaneous solar maximum mission (SMM) and very large array (VLA) observations of solar active regions for the period from 1 February 1985 to 30 January 1986. Medford, MA: Dept. of Physics and Astronomy, Robinson Hall, Tufts University, 1985.

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Lang, Kenneth R. A semi-annual progress report for NASA SMM guest investigator grant NAG 5-501 entitled simultaneous solar maximum mission (SMM) and very large array (VLA) observations of solar active regions for the period from 1 February 1985 to 30 January 1986. Medford, MA: Dept. of Physics and Astronomy, Robinson Hall, Tufts University, 1985.

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Willson, Robert Frank. Simultaneous Solar Maximum Missions (SMM) and Very Large Array (VLA) observations of solar active regions. Medford, MA: Dept. of Physics and Astronomy, Tufts University, 1991.

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Zhang, Xin, ed. Crystallization via Nonclassical Pathways Volume 1: Nucleation, Assembly, Observation & Application. Washington, DC: American Chemical Society, 2020. http://dx.doi.org/10.1021/bk-2020-1358.

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Brosius, Jeffrey W. Plasma properties and magnetic field structure of the solar corona, based on coordinated Max '91 observations fron SERTS, the VLA, and magnetographs. [Washington, D.C.]: National Aeronautics and Space Administration, 1995.

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Yamagishi, Hisao. ELF emission in high latitudes, ray path calculation and ground-satellite observations. Tokyo, Japan: National Institute of Polar Research, 1989.

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Service, Canada Atmospheric Environment. Val D'or: A Summary of Hourly Weather Observations, Climate Normals and Extremes For Canadian Principal Climate Stations. S.l: s.n, 1985.

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Brock, Sallie A. Richmond during the war: Four years of personal observation. Lincoln: University of Nebraska Press, 1996.

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Littlemore, Stuart. Mistake of law?: The Vanuatu Sedition trial, Port Vila, 20 February-7 March 1989 : report of ICJ Australian Section trial observation. Sydney, NSW, Australia: International Commission of Jurists, Australian Section, 1989.

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Book chapters on the topic "Observation vla"

1

Inoue, M., E. Fomalont, M. Tsuboi, F. Yusef-Zadeh, M. Morris, H. Tabara, and T. Kato. "VLA Polarization Observation of the Radio ARC at 15 GHZ." In The Center of the Galaxy, 269–74. Dordrecht: Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-2362-1_34.

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Hardee, Philip E., Timothy J. Cornwell, and Frazer N. Owen. "VLA observation of the M87 jet and small scale jet structures." In Active Galactic Nuclei, 347–52. Berlin, Heidelberg: Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/3-540-19492-4_220.

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Hewitt, J. N., E. L. Turner, B. F. Burke, C. R. Lawrence, C. L. Bennett, G. I. Langston, and J. E. Gunn. "A VLA Gravitational Lens Survey." In Observational Cosmology, 747–50. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3853-3_87.

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Mack, K. H., R. Fanti, L. Gregorini, U. Klein, M. Murgia, M. Vigotti, and J. Zönnchen. "Spectral Analysis of the B3 VLA Survey." In Observational Cosmology, 257–58. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-011-5238-9_45.

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Condon, J. J., W. D. Cotton, E. W. Greisen, Q. F. Yin, R. A. Perley, G. B. Taylor, and J. J. Broderick. "The Nrao VLA Sky Survey: Lessons Applied." In Observational Cosmology, 37–44. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-011-5238-9_6.

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Ciliegi, P., R. G. Mcmahon, and G. Miley. "A Deep VLA Survey of the ISO Survey Regions." In Observational Cosmology, 265–66. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-011-5238-9_47.

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Zanichelli, A., R. Scaramella, M. Vigotti, G. Vettolani, G. Grueff, S. Bardelli, G. Zamorani, M. Mignoli, J. V. Wall, and C. R. Benn. "Clusters of Galaxies at Intermediate Redshifts from the NRAO VLA Sky Survey." In Observational Cosmology, 113–18. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-011-5238-9_20.

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Fletcher, A., B. Burke, S. Conner, J. Lehár, and L. Herold. "The Angular Size Distribution of 4741 Radio Sources in the MIT-VLA Snapshot Archive." In Observational Cosmology, 249–54. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-011-5238-9_43.

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Monnet, Guy, Roland Bacon, Pierre Ferruit, Emmanuel Pécontal, and Eric Emsellem. "Subarcsecond Observations of Galactic Nuclei." In Science with the VLT, 314–16. Berlin, Heidelberg: Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/978-3-540-49215-3_40.

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Lang, Kenneth R. "VLA Observations of the Coronal Plasma." In Basic Plasma Processes on the Sun, 501–7. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-0667-9_90.

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Conference papers on the topic "Observation vla"

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Tomasic, Anthony, Isaac Simmons, and John Zimmerman. "Learning information intent via observation." In the 16th international conference. New York, New York, USA: ACM Press, 2007. http://dx.doi.org/10.1145/1242572.1242580.

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Jorstad, Svetlana G. "VLBA observations of Blazars." In Workshop on Blazar Variability across the Electromagnetic Spectrum. Trieste, Italy: Sissa Medialab, 2009. http://dx.doi.org/10.22323/1.063.0005.

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Fresco Zamora, Jane Louie, Naoya Sawada, Takemi Sahara, Shigeru Kashihara, Yuzo Taenaka, and Suguru Yamaguchi. "Surface weather observation via distributed devices." In 2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC). IEEE, 2014. http://dx.doi.org/10.1109/i2mtc.2014.6860977.

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Liu, Xing, Ying Chen, and Chun-Jian Hua. "Visual tracking via adaptive observation weight." In 2016 International Conference on Machine Learning and Cybernetics (ICMLC). IEEE, 2016. http://dx.doi.org/10.1109/icmlc.2016.7860911.

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Summerville, Adam, Joe Osborn, Christoffer Holmgård, and Daniel W. Zhang. "Mechanics automatically recognized via interactive observation." In FDG'17: International Conference on the Foundations of Digital Games 2017. New York, NY, USA: ACM, 2017. http://dx.doi.org/10.1145/3102071.3102104.

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Ilcev, Dimov Stojce, and Sihle Sicelo Sibiya. "Weather observation via stratospheric platform stations." In 2015 IST-Africa Conference. IEEE, 2015. http://dx.doi.org/10.1109/istafrica.2015.7190585.

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Ender, Joachim. "Multi-Channel GMTI via Approximated Observation." In 2019 20th International Radar Symposium (IRS). IEEE, 2019. http://dx.doi.org/10.23919/irs.2019.8768149.

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Tanaka, Yasuyuki T., and Sandip K. Chakrabarti. "VLF observations of magnetar flares." In PROPAGATION EFFECTS OF VERY LOW FREQUENCY RADIO WAVES: Proceedings of the 1st International Conference on Science with Very Low Frequency Radio Waves: Theory and Observations. AIP, 2010. http://dx.doi.org/10.1063/1.3512890.

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Marcollo, Hayden, Adrian Eassom, Emmanuel Fontaine, Michael Tognarelli, Pierre Beynet, Yiannis Constantinides, and Owen H. Oakley. "Traveling Wave Response in Full-Scale Drilling Riser VIV Measurements." In ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2011. http://dx.doi.org/10.1115/omae2011-49821.

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The dominance of traveling wave VIV response is observed in full-scale measured drilling riser data for the first time. This paper presents the novel methods developed to identify the presence of traveling versus standing wave riser structural response in the full-scale data and the observations. This paper reports on some of the work conducted under the most recently completed phase of the DeepStar JIP (Phase 9). The paper uses four different novel methods to identify the presence of traveling versus standing wave structural response in data obtained from a full-scale Gulf of Mexico drilling riser during a loop current event. The techniques are: 1) Observation of RMS accelerations between synchronized accelerometers; 2) Observation of filtered displacements between synchronized accelerometers (using a new postprocessing synchronization technique); 3) Displacement versus angular rate phase diagrams; and 4) Derivation of upward/downward curvature components via an algorithm proposed by two of the co-authors. High level conclusions are drawn about the structural response types. Recommendations for future instrumentation campaigns are made.
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Angstadt, David C., John P. Coulter, and Ryan Hydro. "Strength Enhancement of Styrene Acrylonitrile Co-Polymer via Delay Pack Injection Molding." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-81615.

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This study investigates the effects of processing of styrene acrylonitrile (SAN) by injection molding using a delayed packing stage. The concept of Delay Pack Injection Molding (DPIM) evolved from an in-situ study of vibration-assisted injection molding (VAIM) which indicated that the beneficial effects of VAIM came not from the vibration itself, but rather from the delay in the onset of packing resulting from the application of the vibration. Conceptually, DPIM involves normal filling of the mold immediately followed by a slight retraction of the injection screw for a specified time period before the final packing pressure is applied. Application of DPIM results in increased birefringence in the molded parts and increases in the ultimate tensile strength of molded parts very similar to the effects seen using VAIM. A parametric study using a design of experiments framework was carried out to determine the delay pack parameters affecting SAN and resulted in a maximum increase in UTS of 11.6%. Observation of birefringence patterns in Delay Pack processed samples shows a significant impact on molecular orientation while observation of failed specimens and their fracture surfaces shows distinctly different modes of crack growth and failure. Growth of craze cracks resulting from tensile loading appeared to be arrested by oriented areas surrounding the part core allowing the specimen to sustain higher loads relative to conventionally molded parts. All of the above observations are consistent with the observed effects of vibration-assisted injection molding.
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Reports on the topic "Observation vla"

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Hodgkiss, William S. Comparison of VLA Ambient Noise Observations with ANDES Predictions. Fort Belvoir, VA: Defense Technical Information Center, May 1991. http://dx.doi.org/10.21236/ada239187.

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Strickman, M. S., J. E. Grove, W. N. Johnson, R. L. Kinzer, R. A. Kroeger, J. D. Kurfess, D. A. Grabelsky, S. M. Matz, W. R. Purcell, and M. P. Ulmer. OSSE Observations of the Vela Pulsar. Fort Belvoir, VA: Defense Technical Information Center, January 1993. http://dx.doi.org/10.21236/ada464425.

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Strickman, M. S., J. E. Grove, W. N. Johnson, R. L. Kinzer, R. A. Kroeger, J. D. Kurfess, D. A. Grabelsky, et al. OSSE Observations of the Vela and Geminga Pulsars. Fort Belvoir, VA: Defense Technical Information Center, January 1996. http://dx.doi.org/10.21236/ada464424.

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Benbow, Wystan R. Expanding the Discovery Potential of VERITAS via Moonlight Observations. Office of Scientific and Technical Information (OSTI), October 2014. http://dx.doi.org/10.2172/1162050.

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Pollack, L. VLA Polarimetry Observations of PKS 2322-123; Estimating Magnetic Fields in the Abell 2597 Cluster. Office of Scientific and Technical Information (OSTI), March 2005. http://dx.doi.org/10.2172/839896.

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Delle Monahce, Luca, Andrew Clifton, Joshua Hacker, Branko Kosovic, Jared Lee, Francois Vanderberghe, Yonghui Wu, Sam Hawkins, and Jesper Nissen. Investigating Marine Boundary Layer Parameterizations by Combining Observations with Models via State Estimation. Office of Scientific and Technical Information (OSTI), June 2015. http://dx.doi.org/10.2172/1325248.

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Haller, Merrick C. Synoptic Estimates of Waves and Currents via Real-Time Assimilation of In-Situ Observations. Fort Belvoir, VA: Defense Technical Information Center, September 2004. http://dx.doi.org/10.21236/ada612990.

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Walker, David T., and Merrick C. Haller. Synoptic Estimates of Waves and Currents via Real-Time Assimilation of In-Situ Observations. Fort Belvoir, VA: Defense Technical Information Center, August 2002. http://dx.doi.org/10.21236/ada628151.

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Walker, David T., and Merrick C. Haller. Synoptic Estimates of Waves and Currents via Real-Time Assimilation of In-Situ Observations. Fort Belvoir, VA: Defense Technical Information Center, September 2003. http://dx.doi.org/10.21236/ada630041.

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Mikula, R. J. Chemical characterization of an on emulsion interface via electron microscope observation of a frozen hydrated sample. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1986. http://dx.doi.org/10.4095/304976.

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