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Astrophysics of Young Star Binaries

L. Prato, T. P. Greene, M. Simon
2003 Astrophysical Journal  
Masses and ages were determined for these 29 objects by placing them on the H-R diagram, overlaid with theoretical pre-main-sequence tracks. Most of the binaries appear to be coeval.  ...  The K-band excess is well correlated with the K-L color for stars with circumstellar material.  ...  −16 3.63 ±0.06 A V unknown AS 353 A 4.51×10 −16 ±0.21×10 −16 1.88 ±0.03 A V unknown B ...  ... 
doi:10.1086/345828 fatcat:7byj76arpbfvpjcashcp3n7toi

Component Masses of the Young Spectroscopic Binary UZ Tau E

L. Prato, M. Simon, T. Mazeh, S. Zucker, I. S. McLean
2002 Astrophysical Journal  
These results come from the combination of our measurements of the mass ratio, M2/M1=0.28 +/-0.01, obtained using high resolution H-band spectroscopy, with the total mass of the system, (1.31 +/-0.08)(  ...  Using the orbital parameters determined from our six epochs of observation, we find that the inclination of the binary orbit, 59.8 +/-4.4 degrees, is consistent with that determined for the circumbinary  ...  astrophysical distribution of the mass ratio values is unknown.  ... 
doi:10.1086/345317 fatcat:nvofsal6jba3lj6lhskostnkoy

Fuzzy Intelligence in Physical Immersion Teaching System Based on Digital Simulation Technology

Aihui Du, Naeem Jan
2022 Journal of Mathematics  
Moreover, this study transforms abstract physical knowledge into recognizable digital physical images and realizes the idea of multifeature fusion through reasonable feature selection and the use of a  ...  processing of images.  ...  the grayscale of the image, and the scale of the ordinate represents the number of pixels of a certain grayscale, or the number of pixels with a certain grayscale value in the image. e ratio of the total  ... 
doi:10.1155/2022/3741475 fatcat:a63hh3azpnfepor2rgx4iq2dum

Deconstructing HD 28867

Frederick M. Walter, Tracy L. Beck, Jon A. Morse, Scott J. Wolk
2003 Astronomical Journal  
The East component has a near-IR excess and displays narrow absorption lines in the optical, both of which are consistent with a cool stellar companion.  ...  It is not visible in K band speckle imaging, which constrains the companion to lie within 14 AU of the B star.  ...  We acknowledge use of the SIMBAD database, operated at CDS, Strasbourg, France. We made use of the catalogs maintained at the former Astronomical Data Center at NASA's Goddard Space Flight Center.  ... 
doi:10.1086/368245 fatcat:lygz4h3bcverhacya5jgmmvjbi

Robust and unobtrusive marker tracking on mobile phones

Daniel Wagner, Tobias Langlotz, Dieter Schmalstieg
2008 2008 7th IEEE/ACM International Symposium on Mixed and Augmented Reality  
Marker tracking has revolutionized Augmented Reality about a decade ago. However, this revolution came at the expense of visual clutter.  ...  All presented techniques are implemented in a single tracking library, are highly efficient in their memory and CPU usage and run at interactive frame rates on mobile phones.  ...  ACKNOWLEDGEMENTS This project was funded in part by Austrian Science Fund FWF under contracts Y193 and W1209-N15, as well as the European project FP6-2004-IST-4-27571.  ... 
doi:10.1109/ismar.2008.4637337 dblp:conf/ismar/WagnerLS08 fatcat:mhnidmti45bfjngha6ax5ewnx4

Robust and Accurate Algorithm for Wearable Stereoscopic Augmented Reality with Three Indistinguishable Markers

Fabrizio Cutolo, Cinzia Freschi, Stefano Mascioli, Paolo Parchi, Mauro Ferrari, Vincenzo Ferrari
2016 Electronics  
Video-based tracking methods using monochromatic markers are robust to non-controllable and/or inconsistent lighting conditions.  ...  This paper presents an algorithm suited for wearable stereoscopic augmented reality video see-through systems for use in a clinical scenario.  ...  Author Contributions: F.C. and V.F. designed and developed the wearable AR system and proposed the localizer-free video-based tracking mechanism.  ... 
doi:10.3390/electronics5030059 fatcat:mfvumtholrephnpvgm337iwbjq

Imaging a Population Code for Odor Identity in the Drosophila Mushroom Body

R. A. A. Campbell, K. S. Honegger, H. Qin, W. Li, E. Demir, G. C. Turner
2013 Journal of Neuroscience  
Kenyon cell ensembles with as few as 25 cells were sufficient to match behavioral discrimination accuracy.  ...  Using a series of increasingly similar odor blends, we identified conditions in which odor discrimination is difficult behaviorally.  ...  Odor blends were made by mixing these two oil dilutions at the desired ratios. Each group of flies was trained on one of three different odor blend ratios: 100:0, 70:30, or 60:40 ( Fig. 2A) .  ... 
doi:10.1523/jneurosci.0682-12.2013 pmid:23785169 pmcid:PMC3685844 fatcat:d2e5p6feo5cj7lp7h5bfyxxniq

Chemical signatures of human odour generate a unique neural code in the brain of Aedes aegypti mosquitoes [article]

Zhilei Zhao, Jessica L Zung, Alexis L Kriete, Azwad Iqbal, Meg A Younger, Benjamin J Matthews, Dorit Merhof, Stephan Thiberge, Martin Strauch, Carolyn S McBride
2020 bioRxiv   pre-print
Vertebrate odours are complex blends of volatile chemicals with many shared components, making discrimination an interesting sensory coding challenge.  ...  the relative concentration of long-chain aldehydes in a host odour blend.  ...  For the novel analysis pipeline for volumetric antennal-lobe imaging, code is available at https://github.com/rwth-lfb/Zhao_et_al.  ... 
doi:10.1101/2020.11.01.363861 fatcat:5ezktkll75d2ddct4thapeiiry

SDSS J1534+1615AB: A Novel T Dwarf Binary Found with Keck Laser Guide Star Adaptive Optics and the Potential Role of Binarity in the L/T Transition

Michael C. Liu, S. K. Leggett, David A. Golimowski, Kuenley Chiu, Xiaohui Fan, T. R. Geballe, Donald P. Schneider, J. Brinkmann
2006 Astrophysical Journal  
We estimate spectral types of T1.5+/-0.5 and T5.5+/-0.5 for the two components based on their near-IR colors, consistent with modeling the integrated-light spectrum as the blend of two components.  ...  With an integrated-light spectral type of T3.5, this binary provides a new benchmark for studying the distinctive J-band brightening previously noted among early and mid-T dwarfs, using two brown dwarfs  ...  It is a pleasure to thank Antonin Bouchez, David LeMignant, Marcos van Dam, Randy Campbell, Robert LaFon, Gary Punawai, Peter Wizinowich, and the Keck Observatory staff for assistance with the observations  ... 
doi:10.1086/505561 fatcat:k2fqxmuwdzcd7buaeurzigj3ru

SN 1983V in NGC 1365 and the Nature of Stripped Envelope Core‐Collapse Supernovae

A. Clocchiatti, J. C. Wheeler, M. M. Phillips, N. B. Suntzeff, S. Cristiani, A. Phillips, R. P. Harkness, M. A. Dopita, K. Beuermann, M. Rosa, P. Grosbol, P. O. Lindblad (+1 others)
1997 Astrophysical Journal  
The photometric evolution of SN 1983V is analyzed in comparison with other Type Ic supernovae and with SN 1983N and SN 1993J.  ...  ratio.  ...  W. would like to thank Walter Miller for helping with a very early draft of this paper.  ... 
doi:10.1086/304268 fatcat:k4po37pwyjcqzfq5fn5akg3ym4

EG 2005 Tutorial on Mixed Realities in Inhabited Worlds [article]

Nadia Magnenat-Thalmann, Daniel Thalmann, Pascal Fua, Frederic Vexo, HyungSeok Kim
2005 Eurographics State of the Art Reports  
hardware for MR in Inhabited Worlds 1.2.1 Vision Based 3D Tracking and Pose Estimation for MR 1.2.2 Perception and sensors for Virtual Humans 1.2.3 Hardware for mixed reality inhabited virtual world 1.2.4  ...  Outline of the tutorial 1.1 Concepts and State of the Art of mixed realities in inhabited worlds 1.1.1 Mixed Realities in inhabited worlds 1.1.2 Believability and Presence 1.2 Perception, Sensors and Immersive  ...  Moreover, wall displays allow the simultaneous use of an eye tracking system which is impossible with a normal HMD.  ... 
doi:10.2312/egt.20051050 fatcat:qlyopr6svbd3znv6afa64ehxcy

Murine Pheromone Proteins Constitute a Context-Dependent Combinatorial Code Governing Multiple Social Behaviors

Angeldeep W. Kaur, Tobias Ackels, Tsung-Han Kuo, Annika Cichy, Sandeepa Dey, Cristen Hays, Maria Kateri, Darren W. Logan, Tobias F. Marton, Marc Spehr, Lisa Stowers
2014 Cell  
A chemosensory signature of "self" that modulates behavior is developed via experience through exposure to a repertoire of MUPs.  ...  These findings reveal that individually emitted chemical cues can be interpreted based on their combinatorial permutation and relative ratios, and they can transmit both fixed and learned information to  ...  A total of 2,515 cells were imaged, sequentially exposed to self-rMUPs, self-rMUPs with rMUP7 at 43, and self-rMUPs with rMUP10* at 43.  ... 
doi:10.1016/j.cell.2014.02.025 pmid:24766811 pmcid:PMC4051225 fatcat:mzrbx75wxjh5phrclelthlilz4

Trends in augmented reality tracking, interaction and display: A review of ten years of ISMAR

Feng Zhou, Henry Been-Lirn Duh, Mark Billinghurst
2008 2008 7th IEEE/ACM International Symposium on Mixed and Augmented Reality  
This paper reviews the tenyear development of the work presented at the ISMAR conference and its predecessors with a particular focus on tracking, interaction and display research.  ...  It provides a roadmap for future augmented reality research which will be of great value to this relatively young field, and also for helping researchers decide which topics should be explored when they  ...  These are techniques that explicitly use a model of the features of tracked objects such as a CAD model or 2D template of the object based on the distinguishable features.  ... 
doi:10.1109/ismar.2008.4637362 dblp:conf/ismar/ZhouDB08 fatcat:4djqgdlfpfegtn77bcgk5l6u5y

Emerging display technologies - new systems and applications: from images to sensing, interaction and enhancement

2005 IEEE Proceedings. VR 2005. Virtual Reality, 2005.  
As our culture and society become increasingly enveloped by computational technologies, we are quietly entering the world of a continuous cyberspace as real as that predicted by science fiction writers  ...  Dear EDT 2006 attendees, So, how many computers are in the room with you now? How many screens and keyboards surround you? Think about your office, your lab, your mobile phone, your PDA, ....  ...  ACKNOWLEDGEMENTS The cylindrical display project described in this paper was developed with funds of the Department of the Army under contract number DAAD 19-99-D-0046.  ... 
doi:10.1109/vr.2005.1492818 fatcat:cjrhq3hrlrgxvdh2jqw3gcblay

A visual analysis/synthesis feedback loop for accurate face tracking

Stéphane Valente, Jean-Luc Dugelay
2001 Signal processing. Image communication  
Our face-tracking algorithm may be used to recover the 3D position and orientation of a real face and generate a MPEG-4 animation stream to reproduce the rigid motion of the face with a synthetic face  ...  with a common meeting space as if they were all sitting in the same physical room, and to o!  ...  techniques, can be used to robustly track a real face, and accurately recover its rigid motion, with an uncalibrated camera, no markers, unknown lighting conditions, and a non-uniform background.  ... 
doi:10.1016/s0923-5965(00)00038-2 fatcat:kddmab7bajef3izkhdf4ibfsge
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