1377
1377
1376
1376
1445
1445
1759
1759
2186
2186
2196
2196
2462
2462
2855
2855
3241
3241
2932
2932
2019
2010
University (49.3K)Research Institution (9.4K)Company (1K)Foundation (410)Hospital (375)Other (48)Investor (25)
1 - 10 of 49,308
Sort by
Publication
IDDOI:10.1093/mnras/stz3277Published Date2020-01-21JournalMonthly Notices of the Royal Astronomical Society, 2020-01-21, Volume 491
ABSTRACT The characterization of exoplanets is critical to understanding planet diversity and formation, their atmospheric composition, and the potential for life. This endeavour is greatly enhanced when light from the planet can be spatially separated from that of the host star. One potential method is nulling interferometry, where the contaminating starlight is removed via destructive interference. The GLINT instrument is a photonic nulling interferometer with novel capabilities that has no…
Publication
ID31813374Published Date2020-01-24JournalPhilosophical transactions. Series A, Mathematical, physical, and engineering sciences, 2020-01-24, Volume 378
The Ramanujan sum () has been used by mathematicians to derive many important infinite series expansions for arithmetic-functions in number theory. Interestingly, this sum has many properties which are attractive from the point of view of digital signal processing. One of these is that () is periodic with period , and another is that it is always integer-valued in spite of the presence of complex roots of unity in the definition. Engineers and physicists have in the past used the Ramanujan-su…
Publication
IDDOI:10.1093/mnras/stz3151Published Date2020-01-11JournalMonthly Notices of the Royal Astronomical Society, 2020-01-11, Volume 491
ABSTRACT Using Hubble Space Telescope ACS/WFC data we present the photometry and spatial distribution of resolved stellar populations of four fields within the extended ultraviolet disc (XUV disc) of M83. These observations show a clumpy distribution of main-sequence stars and a mostly smooth distribution of red giant branch stars. We constrain the upper end of the initial mass function (IMF) in the outer disc using the detected population of main-sequence stars and an assumed constant star f…
Publication
ID31702751Published Date2020-01-07JournalSoft matter, 2020-01-07, Volume 16
Thermal motion of particles and molecules in liquids underlies many chemical and biological processes. Liquids, especially in biology, are complex due to structure at multiple relevant length scales. While diffusion in homogeneous simple liquids is well understood through the Stokes-Einstein relation, this equation fails completely in describing diffusion in complex media. Modeling, understanding, engineering and controlling processes at the nanoscale, most importantly inside living cells, re…
Publication
ID31653691Published Date2020-01-06JournalThe Journal of experimental medicine, 2020-01-06, Volume 217
The zinc finger transcription factor, Bcl11b, is expressed in T cells and group 2 innate lymphoid cells (ILC2s) among hematopoietic cells. In early T-lineage cells, Bcl11b directly binds and represses the gene encoding the E protein antagonist, Id2, preventing pro-T cells from adopting innate-like fates. In contrast, ILC2s co-express both Bcl11b and Id2. To address this contradiction, we have directly compared Bcl11b action mechanisms in pro-T cells and ILC2s. We found that Bcl11b binding to …
Publication
IDIEEE:8825563Published Date2020-01-01JournalIEEE Robotics and Automation Letters, 2020-01-01, Volume 5
This letter presents a hierarchical control strategy based on hybrid systems theory, nonlinear control, and safety-critical systems to enable cooperative locomotion of robotic guide dogs and visually impaired people. We address high-dimensional and complex hybrid dynamical models that represent collaborative locomotion. At the high level of the control scheme, local and nonlinear controllers, based on the virtual constraints approach, are designed to induce exponentially stable dynamic gaits.…
Publication
IDDOI:10.1093/gji/ggz458Published Date2020-01-01JournalGeophysical Journal International, 2020-01-01, Volume 220
SUMMARY We use broad-band stations of the ‘Los Angeles Syncline Seismic Interferometry Experiment’ (LASSIE) to perform a joint inversion of the Horizontal to Vertical spectral ratios (H/V) and multimode dispersion curves (phase and group velocity) for both Rayleigh and Love waves at each station of a dense line of sensors. The H/V of the autocorrelated signal at a seismic station is proportional to the ratio of the imaginary parts of the Green’s function. The presence of low-frequency peaks (…
Publication
ID31534268Published Date2020-01-01JournalIcarus, 2020-01-01, Volume 335
We used a terrestrial single-station seismometer to quantify the uncertainty of InSight (INterior explorations using Seismic Investigations, Geodesy and Heat Transport) data for determining Martian core size. To mimic Martian seismicity, we formed a catalog using 917 terrestrial earthquakes, from which we randomly selected events. We stacked amplitudes on modeled arrival times and searched for where produced coherent seismic amplitudes. A core detection was defined by a coherent peak with sma…
Publication
IDDOI:10.1093/gji/ggz447Published Date2020-01-01JournalGeophysical Journal International, 2020-01-01, Volume 220
SUMMARY Locally, the elevation of last interglacial (LIG; ∼122 ka) sea level markers is modulated by processes of vertical displacement, such as tectonic uplift or glacial isostatic adjustment, and these processes must be accounted for in deriving estimates of global ice volumes from geological sea level records. The impact of sediment loading on LIG sea level markers is generally not accounted for in these corrections, as it is assumed that the impact is negligible except in extremely high d…
Publication
ID31299099Published Date2020-01-01JournalThe New phytologist, 2020-01-01, Volume 225
The response of terrestrial carbon uptake to increasing atmospheric [CO ], that is the CO fertilization effect (CFE), remains a key area of uncertainty in carbon cycle science. Here we provide a perspective on how satellite observations could be better used to understand and constrain CFE. We then highlight data assimilation (DA) as an effective way to reconcile different satellite datasets and systematically constrain carbon uptake trends in Earth System Models. As a proof-of-concept, we sho…
We found 49,308 documents that match your Search
Research Grants: 9,258
Publications: 29,969
Patents: 10,069
Clinical Trials: 12

Wellspring Search is the world's most comprehensive collection of enriched content about emerging and licensable technology innovations.


Already a member? Sign in