Institution
Instituto Nacional de Técnica Aeroespacial
About: Instituto Nacional de Técnica Aeroespacial is a based out in . It is known for research contribution in the topics: Telescope & Mars Exploration Program. The organization has 1877 authors who have published 1970 publications receiving 36114 citations. The organization is also known as: Instituto Nacional de Tecnica Aeroespacial & INTA.
Papers published on a yearly basis
Papers
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TL;DR: A neural network learning procedure has been applied to the classification of sonar returns from two undersea targets, a metal cylinder and a similarly shaped rock, and network performance and classification strategy was comparable to that of trained human listeners.
1,146 citations
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TL;DR: In this paper, the structure of steady state diffusion flames is investigated by analyzing the mixing and chemical reaction of two opposed jets of fuel and oxidizer as a particular example, and an Arrhenius one-step irreversible reaction in the realistic limit of large activation energies.
792 citations
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California Institute of Technology1, New Mexico Institute of Mining and Technology2, Alfred Wegener Institute for Polar and Marine Research3, Langley Research Center4, Royal Netherlands Meteorological Institute5, Delft University of Technology6, Environment Canada7, Earth System Research Laboratory8, Finnish Meteorological Institute9, Danish Meteorological Institute10, Eindhoven University of Technology11, Arctic and Antarctic Research Institute12, National Institute for Environmental Studies13, Instituto Nacional de Técnica Aeroespacial14, University of Toronto15
TL;DR: It is demonstrated that chemical ozone destruction over the Arctic in early 2011 was—for the first time in the observational record—comparable to that in the Antarctic ozone hole.
Abstract: Chemical ozone destruction occurs over both polar regions in local winter–spring. In the Antarctic, essentially complete removal of lower-stratospheric ozone currently results in an ozone hole every year, whereas in the Arctic, ozone loss is highly variable and has until now been much more limited. Here we demonstrate that chemical ozone destruction over the Arctic in early 2011 was—for the first time in the observational record—comparable to that in the Antarctic ozone hole. Unusually long-lasting cold conditions in the Arctic lower stratosphere led to persistent enhancement in ozone-destroying forms of chlorine and to unprecedented ozone loss, which exceeded 80 per cent over 18–20 kilometres altitude. Our results show that Arctic ozone holes are possible even with temperatures much milder than those in the Antarctic. We cannot at present predict when such severe Arctic ozone depletion may be matched or exceeded. Since its emergence in the 1980s, the Antarctic ozone hole, the near-complete loss of lower-stratospheric ozone, has occurred every year. The possibility that a similar effect might occur in the Northern Hemisphere has been debated, but despite considerable variation in ozone levels in the Arctic, they had not reached the extremes seen in the south. Until this year. Observations made in the late winter and early spring of 2011 reveal ozone loss far outside the range previously observed over the Northern Hemisphere, comparable to some Antarctic ozone holes. The formation of the hole was driven by an unusually long cold snap and a high level of ozone-destroying chlorine. Although this effect is dramatic, it is difficult to predict whether similar Arctic ozone holes will develop in future.
597 citations
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TL;DR: A computational study of protein folding predicts that proteins in Buchnera, as well as proteins of other intracellular bacteria, are generally characterized by smaller folding efficiency compared with proteins of free living bacteria.
Abstract: We have sequenced the genome of the intracellular symbiont Buchnera aphidicola from the aphid Baizongia pistacea. This strain diverged 80–150 million years ago from the common ancestor of two previously sequenced Buchnera strains. Here, a field-collected, nonclonal sample of insects was used as source material for laboratory procedures. As a consequence, the genome assembly unveiled intrapopulational variation, consisting of ≈1,200 polymorphic sites. Comparison of the 618-kb (kbp) genome with the two other Buchnera genomes revealed a nearly perfect gene-order conservation, indicating that the onset of genomic stasis coincided closely with establishment of the symbiosis with aphids, ≈200 million years ago. Extensive genome reduction also predates the synchronous diversification of Buchnera and its host; but, at a slower rate, gene loss continues among the extant lineages. A computational study of protein folding predicts that proteins in Buchnera, as well as proteins of other intracellular bacteria, are generally characterized by smaller folding efficiency compared with proteins of free living bacteria. These and other degenerative genomic features are discussed in light of compensatory processes and theoretical predictions on the long-term evolutionary fate of symbionts like Buchnera.
501 citations
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Kogakuin University1, Tokyo Institute of Technology2, Goddard Space Flight Center3, Osaka University4, University of Louisville5, University of Cincinnati6, Space Science Institute7, University of Hawaii8, The Aerospace Corporation9, Valparaiso University10, Academia Sinica11, Subaru12, Ibaraki University13, Kanagawa University14, Nagoya University15, Princeton University16, University of Nice Sophia Antipolis17, Max Planck Society18, College of Charleston19, University of Tokyo20, Kyoto University21, Graduate University for Advanced Studies22, Instituto Nacional de Técnica Aeroespacial23, California Institute of Technology24, University of Amsterdam25, Institute for the Physics and Mathematics of the Universe26, Hokkaido University27, University of Washington28, Tohoku University29
TL;DR: In this article, high-resolution, H-band, imaging observations, collected with Subaru/HiCIAO, of the scattered light from the transitional disk around SAO 206462 (HD 135344B), reveal the presence of scattered light components as close as 0.2 (approx 28 AU).
Abstract: We present high-resolution, H-band, imaging observations, collected with Subaru/HiCIAO, of the scattered light from the transitional disk around SAO 206462 (HD 135344B). Although previous sub-mm imagery suggested the existence of the dust-depleted cavity at r approximates 46 AU, our observations reveal the presence of scattered light components as close as 0".2 (approx 28 AU) from the star. Moreover, we have discovered two small-scale spiral structures lying within 0".5 (approx 70 AU). We present models for the spiral structures using the spiral density wave theory, and derive a disk aspect ratio of h approx 0.1, which is consistent with previous sub-mm observations. This model can potentially give estimates of the temperature and rotation profiles of the disk based on dynamical processes, independently from sub-mm observations. It also predicts the evolution of the spiral structures, which can be observable on timescales of 10-20 years, providing conclusive tests of the model. While we cannot uniquely identify the origin of these spirals, planets embedded in the disk may be capable of exciting the observed morphology. Assuming that this is the case, we can make predictions on the locations and, possibly, the masses of the unseen planets. Such planets may be detected by future multi-wavelengths observations.
445 citations
Authors
Showing all 1877 results
Name | H-index | Papers | Citations |
---|---|---|---|
Esteban Domingo | 90 | 405 | 27897 |
Pablo G. Pérez-González | 83 | 328 | 28143 |
Manuel Gómez | 74 | 432 | 23731 |
A. J. Castro-Tirado | 72 | 728 | 24272 |
M. R. Zapatero Osorio | 71 | 297 | 15684 |
Eduardo L. Martín | 68 | 228 | 13692 |
Lin Ma | 67 | 579 | 16701 |
Jesús Martín-Pintado | 67 | 378 | 14372 |
Amaya Moro-Martin | 67 | 237 | 12677 |
David Barrado | 66 | 329 | 21867 |
Javier R. Goicoechea | 65 | 305 | 12256 |
Víctor de Lorenzo | 65 | 359 | 14561 |
Francisco Najarro | 62 | 279 | 11434 |
Daining Fang | 59 | 872 | 17753 |
Pavel Cheben | 56 | 469 | 10469 |