Estuarine multi-parameter mapping and measurement via an amphibious, autonomous bottom crawler

2021 ◽  
Author(s):  
Arnis Mangolds ◽  
Greg Schultz
Keyword(s):  
Parameter Mapping

Magnetic resonance parameter mapping using model‐guided self‐supervised deep learning

2021 ◽  
Vol 85 (6) ◽  
pp. 3211-3226
Author(s):  
Fang Liu ◽  
Richard Kijowski ◽  
Georges El Fakhri ◽  
Li Feng
Keyword(s):  
Deep Learning ◽  
Magnetic Resonance ◽  
Resonance Parameter ◽  
Parameter Mapping ◽  
Magnetic Resonance Parameter

scholarly journals Limits to Ionization-parameter Mapping as a Diagnostic of Hii Region Optical Depth

2021 ◽  
Vol 923 (1) ◽  
pp. 78
Author(s):  
Amit N. Sawant ◽  
Eric W. Pellegrini ◽  
M. S. Oey ◽  
Jesús López-Hernández ◽  
Genoveva Micheva
Keyword(s):  
Optical Depth ◽  
Strong Dependence ◽  
Light Flux ◽  
Emission Lines ◽  
Ionization State ◽  
Hii Region ◽  
Parameter Mapping ◽  
Ionization Structure ◽  
The Galaxy ◽  
Ionization Parameter

Abstract We employ ionization-parameter mapping (IPM) to infer the optical depth of H ii regions in the northern half of M33. We construct [O iii]λ5007/[O ii]λ3727 and [O iii]λ5007/[S ii]λ6724 ratio maps from narrowband images continuum-subtracted in this way, from which we classify the H ii regions by optical depth to ionizing radiation, based on their ionization structure. This method works relatively well in the low-metallicity regime, 12 + log ( O / H ) ≤ 8.4 , where [O iii]λ λ4959, 5007 is strong. However, at higher metallicities, the method breaks down due to the strong dependence of the [O iii]λ λ4959, 5007 emission lines on the nebular temperature. Thus, although O++ may be present in metal-rich H ii regions, these commonly used emission lines do not serve as a useful indicator of its presence, and hence the O ionization state. In addition, IPM as a diagnostic of optical depth is limited by spatial resolution. We also report a region of highly excited [O iii] extending over an area ∼1 kpc across and [O iii]λ5007 luminosity of 4.9 ± 1.5 × 1038 erg s−1, which is several times higher than the ionizing budget of any potential sources in this portion of the galaxy. Finally, this work introduces a new method for continuum subtraction of narrowband images based on the dispersion of pixels around the mode of the diffuse-light flux distribution. In addition to M33, we demonstrate the method on C iii]λ1909 imaging of Haro 11, ESO 338-IG004, and Mrk 71.

Enhancing intravoxel incoherent motion parameter mapping in the brain using k -b PCA

2018 ◽  
Vol 31 (12) ◽  
pp. e4008 ◽  
Author(s):  
Georg R. Spinner ◽  
Johannes F.M. Schmidt ◽  
Constantin von Deuster ◽  
Christian Federau ◽  
Christian T. Stoeck ◽  
...  
Keyword(s):  
Motion Parameter ◽  
Intravoxel Incoherent Motion ◽  
Parameter Mapping ◽  
The Brain

scholarly journals Accelerating parameter mapping with a locally low rank constraint

2014 ◽  
Vol 73 (2) ◽  
pp. 655-661 ◽  
Author(s):  
Tao Zhang ◽  
John M. Pauly ◽  
Ives R. Levesque
Keyword(s):  
Low Rank ◽  
Parameter Mapping ◽  
Rank Constraint

Functional Imaging by I0- andT2* -parameter mapping using multi-image EPI

1998 ◽  
Vol 40 (2) ◽  
pp. 243-248 ◽  
Author(s):  
Oliver Speck ◽  
Jürgen Hennig
Keyword(s):  
Functional Imaging ◽  
Parameter Mapping

scholarly journals Magnetic resonance imaging parameter mapping in ex vivo human menisci

2018 ◽  
Vol 26 ◽  
pp. S461 ◽  
Author(s):  
E. Olsson ◽  
E. Folkesson ◽  
P. Peterson ◽  
P. Onnerfjord ◽  
M. Englund ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Ex Vivo ◽  
Resonance Imaging ◽  
Parameter Mapping ◽  
Imaging Parameter ◽  
Magnetic Resonance Imaging Parameter

Beyond interfaces

2014 ◽  
Vol 4 (4) ◽  
pp. 494-525 ◽  
Author(s):  
Inmaculada Gómez Soler
Keyword(s):  
Empirical Data ◽  
Integrative Model ◽  
Empirical Adequacy ◽  
Syntactic Awareness ◽  
Acquisition Process ◽  
Parameter Mapping ◽  
Articulated Model ◽  
Processing Resources ◽  
Interface Hypothesis ◽  
Psych Verb

By analyzing the empirical data from two experiments that test Spanish psych-verb properties (e.g. gustar ‘to like’), this article assesses the empirical adequacy of the Interface Hypothesis (IH), which claims that external interfaces (i.e. interfaces between a linguistic module and a cognitive module) are more problematic for learners than internal interfaces/narrow syntax (Sorace & Filiaci, 2006; Sorace, 2011; inter alia). Because my findings were inconsistent with the IH (i.e. target-like pragmatics knowledge can precede syntactic awareness of the same construction), I turned to the Integrative Model of Bilingual Acquisition (Pires & Rothman, 2011), which accounts for non-native divergence by resorting to the interplay of a series of factors (i.e. formal complexity, L1-L2 parameter mapping, processing resources, and PLD). This more articulated model is not only able to account for the patterns in these experiments but it also constitutes a more integrated explanation for the intricacies of the acquisition process.

JOINT PARAMETER MAPPING METHOD FOR THE CONTROL OF KNEE PROSTHESIS

2014 ◽  
Author(s):  
JUAN LI ◽  
WEIDA LI ◽  
CHUNGUANG LI ◽  
HAIYAN HU ◽  
HAO GUO ◽  
...  
Keyword(s):  
Knee Prosthesis ◽  
Mapping Method ◽  
Parameter Mapping
Sign in / Sign up

Export Citation Format

Share Document