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Author |
Dupont F, Picard G, Royer A, Fily M, Roy A, Langlois A, Champollion N, |
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Title |
Modeling the Microwave Emission of Bubbly Ice: Applications to Blue Ice and Superimposed Ice in the Antarctic and Arctic
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Type |
Journal Article |
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Year |
2014 |
Publication |
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING |
Abbreviated Journal |
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Volume |
Early Access Online |
Issue |
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Pages |
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Keywords |
Dense media radiative transfer (DMRT) theory, Ice, microwave, Microwave FET integrated circuits, Microwave integrated circuits, Microwave measurement, Microwave radiometry, modeling, remote sensing, Snow, superimposed ice, Temperature measurement, |
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Abstract |
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Programme |
1073 |
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Thesis |
Bachelor's thesis |
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ISSN |
0196-2892 |
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Approved |
yes |
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Call Number |
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Serial |
4248 |
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Title |
Quality Assessment of the First Measurements of Tropospheric Water Vapor and Temperature by the HAMSTRAD Radiometer Over Concordia Station, Antarctica
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Type |
Journal Article |
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Year |
2013 |
Publication |
Geoscience and Remote Sensing, IEEE Transactions on |
Abbreviated Journal |
0196-2892 |
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Volume |
PP |
Issue |
99 |
Pages |
1-23 |
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Keywords |
Extraterrestrial measurements, Instruments, Microwave radiometry, Ocean temperature, Temperature measurement, Terrestrial atmosphere, Water, Antarctica, atmospheric measurements, humidity measurements, least squares methods, microwave measurements, microwave radiometry, temperature measurements, time series analysis, |
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Programme |
910,1013 |
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Thesis |
Bachelor's thesis |
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ISSN |
0196-2892 |
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Approved |
yes |
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Call Number |
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Serial |
660 |
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Author |
RICAUD Philippe, GABARD Benjamin, DERRIEN Sol, CHABOUREAU Jean-Pierre, ROSE Thomas, MOMBAUER Andreas, CZEKALA Harald, |
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Title |
HAMSTRAD-Tropo, A 183-GHz Radiometer Dedicated to Sound Tropospheric Water Vapor Over Concordia Station, Antarctica |
Type |
Journal Article |
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Year |
2010 |
Publication |
IEEE transactions on geoscience and remote sensing |
Abbreviated Journal |
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Volume |
48 |
Issue |
3 |
Pages |
16 |
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Keywords |
Atmospheric measurements, humidity measurement, microwave measurements, microwave radiometry, Europe, Europe, Western Europe, Europe Ouest, polar regions, R, France, France, Antarctica, Antarctique, radiometry, Radiom, atmosphere, Atmosph, models, Mod, sounding, Sondage, humidity, Humidit, accuracy, Pr, temperature, Temp, oxygen, Oxyg, technology, Technologie, domes, Dome, programs, Programme, microwaves, Hyperfr, water vapor, Vapeur eau, |
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Abstract |
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Programme |
910 |
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Thesis |
Bachelor's thesis |
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Publisher |
Institute of Electrical and Electronics Engineers |
Place of Publication |
New York, NY, ETATS-UNIS |
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ISSN |
0196-2892 |
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Approved |
yes |
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Call Number |
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Serial |
50 |
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Author |
Fourati H, Manamanni N, Afilal L, Handrich Y, |
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Title |
A rigid body attitude estimation for Bio-logging application: A quaternion-based nonlinear filter approach
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Type |
Conference - International - Article with Reading Comitee |
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Year |
2009 |
Publication |
2009 IEEE/RSJ International Conference on Intelligent Robots and Systems |
Abbreviated Journal |
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Volume |
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Issue |
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Pages |
558 -563 |
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Abstract |
Bio-logging is a new interdisciplinary research area at the intersection of animal behavior and bioengineering. It involves several applications such as determination of specific parameters (attitude, acceleration, and position) via a new generation of mechatronic systems. The aim of this paper concerns the animal motion estimation problem using low-cost sensors fusion. A quaternion-based nonlinear observer for the tracking of rigid body attitude (orientation) and heading using measurements provided from low cost inertial and magnetic sensors is presented. The algorithm combines low-frequency, 3-axis accelerometer and 3-axis magnetometer, data with high frequency 3-axis gyroscope measurement. Then, to increase the performance and reduce the computational requirements, we exploit the sensor readings directly in the designed observer. Using the estimated attitude, the linear acceleration is then derived. This latter will be used in the future to evaluate the animal energy index and its mechanical work. Finally, some experimental results, using the measurements provided by an inertial sensor put on dog are given to illustrate the efficiency of the proposed algorithm.
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Programme |
394 |
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Thesis |
Bachelor's thesis |
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Publisher |
IEEE |
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ISBN |
978-1-4244-3803-7 |
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Approved |
yes |
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Call Number |
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Serial |
944 |
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Author |
Van Petegem, F.,; Collins, T.,; Meuwis, M.-A.,; Gerday, C.,; Feller, G.,; Van Beeumen, J., |
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Title |
Crystallization and preliminary X-ray analysis of a xylanase from the psychrophile Pseudoalteromonas haloplanktis |
Type |
Journal Article |
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Year |
2002 |
Publication |
Acta crystallographica section d-biological crystallography |
Abbreviated Journal |
Acta Crystallogr. D Biol. Crystallogr. |
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Volume |
58 |
Issue |
9 |
Pages |
1494-1496 |
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Keywords |
psychrophiles; cold-adapted enzyme; glycosyl hydrolases |
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Abstract |
The 46 kDa xylanase from the Antarctic microorganism Pseudoalteromonas haloplanktis is an enzyme that efficiently catalyzes reactions at low temperatures. Here, the crystallization of both the native protein and the SeMet-substituted enzyme and data collection from both crystals using synchrotron radiation are described. The native data showed that the crystals diffract to 1.3 A resolution and belong to space group P212121, with unit-cell parameters a = 50.87, b = 90.51, c = 97.23 A. SAD data collected at the peak of the selenium absorption edge proved to be sufficient to determine the heavy-atom configuration and to obtain electron density of good quality. |
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Programme |
193 |
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Publisher |
International Union of Crystallography |
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ISSN |
0907-4449 |
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Notes |
doi:10.1107/S0907444902011666 |
Approved |
yes |
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Call Number |
IPEV @ Thierry.Lemaire @ |
Serial |
5579 |
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Author |
Christophe Barbraud, Karine Delord, Akiko Kato, Paco Bustamante, Yves Cherel |
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Title |
Sexual segregation in a highly pagophilic and sexually dimorphic marine predator |
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Journal |
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Year |
2019 |
Publication |
bioRxiv |
Abbreviated Journal |
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Volume |
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Issue |
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Pages |
472431 |
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Programme |
109 |
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Thesis |
Bachelor's thesis |
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Approved |
yes |
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Call Number |
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Serial |
7635 |
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Author |
Fernando Arce, Mark A. Hindell, Clive R. McMahon, Simon J. Wotherspoon, Christophe Guinet, Robert G. Harcourt, Sophie Bestley |
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Title |
Elephant seal foraging success is enhanced in Antarctic coastal polynyas |
Type |
Journal |
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Year |
2022 |
Publication |
Proceedings of the Royal Society B: Biological Sciences |
Abbreviated Journal |
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Volume |
289 |
Issue |
1967 |
Pages |
20212452 |
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Keywords |
body condition drift rates foraging behaviour Mirounga leonina post-polynyas Southern Ocean |
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Abstract |
Antarctic polynyas are persistent open water areas which enable early and large seasonal phytoplankton blooms. This high primary productivity, boosted by iron supply from coastal glaciers, attracts organisms from all trophic levels to form a rich and diverse community. How the ecological benefit of polynya productivity is translated to the highest trophic levels remains poorly resolved. We studied 119 southern elephant seals feeding over the Antarctic shelf and demonstrated that: (i) 96% of seals foraging here used polynyas, with individuals spending on average 62% of their time there; (ii) the seals exhibited more area-restricted search behaviour when in polynyas; and (iii) these seals gained more energy (indicated by increased buoyancy from greater fat stores) when inside polynyas. This higher-quality foraging existed even when ice was not present in the study area, indicating that these are important and predictable foraging grounds year-round. Despite these energetic advantages from using polynyas, not all the seals used them extensively. Factors other than food supply may influence an individual's choice in their use of feeding grounds, such as exposure to predation or the probability of being able to return to distant sub-Antarctic breeding sites. |
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Programme |
109,1201 |
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Thesis |
Bachelor's thesis |
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Approved |
yes |
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Call Number |
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Serial |
7983 |
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Author |
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Title |
Decadal changes in blood ?13C values, at-sea distribution, and weaning mass of southern elephant seals from Kerguelen Islands |
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Journal |
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Year |
2020 |
Publication |
Proceedings of the Royal Society B: Biological Sciences |
Abbreviated Journal |
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Volume |
287 |
Issue |
1933 |
Pages |
20201544 |
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Keywords |
bio-logging decadal change foraging habitat Indian sector of the Southern Ocean population strategies stable isotopes |
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Programme |
109,1201 |
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Thesis |
Bachelor's thesis |
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Approved |
yes |
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Call Number |
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Serial |
8006 |
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Author |
Riotte-Lambert Louise, Weimerskirch Henri, |
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Title |
Do naive juvenile seabirds forage differently from adults?
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Type |
Journal Article |
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Year |
2013 |
Publication |
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES |
Abbreviated Journal |
Proc. Biol. Sci. |
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Volume |
280 |
Issue |
1768 |
Pages |
20131434 |
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Keywords |
albatross, immaturity, learning, movement, telemetry, |
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Abstract |
Foraging skills of young individuals are assumed to be inferior to those of adults. The reduced efficiency of naive individuals may be the primary cause of the high juvenile mortality and explain the deferment of maturity in long-lived species. However, the study of juvenile and immature foraging behaviour has been limited so far. We used satellite telemetry to compare the foraging movements of juveniles, immatures and breeding adult wandering albatrosses Diomedea exulans, a species where foraging success is positively influenced by the distance covered daily. We showed that juveniles are able to use favourable winds as soon as the first month of independence, but cover shorter distances daily and spend more time sitting on water than adults during the first two months after fledging. These reduced movement capacities do not seem to be the cause of higher juvenile mortality. Moreover, juveniles almost never restrict their movement to specific areas, as adults and immatures frequently do over shelf edges or oceanic zones, which suggest that the location of appropriate areas is learned through experience. Immatures and adults have equivalent movement capacities, but when they are central place foragers, i.e. when adults breed or immatures come to the colony to display and pair, immatures make shorter trips than adults. The long duration of immaturity in this species seems to be related to a long period of learning to integrate the foraging constraints associated with reproduction and central place foraging. Our results indicate that foraging behaviour of young albatrosses is partly innate and partly learned progressively over immaturity. The first months of learning appear critical in terms of survival, whereas the long period of immaturity is necessary for young birds to attain the skills necessary for efficient breeding without fitness costs. |
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Programme |
109 |
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Bachelor's thesis |
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ISSN |
0962-8452 |
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Approved |
yes |
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Call Number |
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Serial |
4323 |
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Title |
Integrative modelling of animal movement: incorporating in situ habitat and behavioural information for a migratory marine predator
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Type |
Journal Article |
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Year |
2012 |
Publication |
PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON |
Abbreviated Journal |
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Volume |
280 |
Issue |
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Pages |
20122262 |
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Keywords |
animal telemetry, foraging behaviour, individual movement, oceanographic drivers of movement, spatial ecology, state-space model, |
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Abstract |
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Programme |
109 |
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Bachelor's thesis |
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0962-8452 |
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yes |
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Call Number |
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Serial |
4436 |
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