Results 41 to 50 of about 374,552 (274)

Narrow and ℓ2-strictly singular operators from L p

open access: yesIsrael Journal of Mathematics, 2014
In the first part of the paper we prove that for $2 < p, r < \infty$ every operator $T: L_p \to \ell_r$ is narrow. This completes the list of sequence and function Lebesgue spaces $X$ with the property that every operator $T:L_p \to X$ is narrow.
Mykhaylyuk, V.   +3 more
openaire   +3 more sources

Space-time properties of free motion time-of-arrival eigenstates

open access: yes, 1998
The properties of the time-of-arrival operator for free motion introduced by Aharonov and Bohm and of its self-adjoint variants are studied. The domains of applicability of the different approaches are clarified.
C. R. Leavens   +29 more
core   +1 more source

A multibody approach applied to the study of driver injuries due to a narrow-track wheeled tractor rollover

open access: yesJournal of Agricultural Engineering, 2015
This paper proposes the use of the multibody approach to evaluate the severity of the injuries to the driver associated with rollover of an agricultural tractor.
Simone Pascuzzi
doaj   +1 more source

Determining Dark Matter properties with a XENONnT/LZ signal and LHC-Run3 mono-jet searches [PDF]

open access: yes, 2018
We develop a method to forecast the outcome of the LHC Run 3 based on the hypothetical detection of $\mathcal{O}(100)$ signal events at XENONnT. Our method relies on a systematic classification of renormalisable single-mediator models for dark matter ...
Baum, Sebastian   +4 more
core   +2 more sources

Diagnosis of Roller Bearings Compound Fault Using Underdetermined Blind Source Separation Algorithm Based on Null-Space Pursuit

open access: yesShock and Vibration, 2015
In order to solve the problem of underdetermined blind source separation (BSS) in the diagnosis of compound fault of roller bearings, an underdetermined BSS algorithm based on null-space pursuit (NSP) was proposed.
Lingli Cui   +3 more
doaj   +1 more source

Genetic algorithms with DNN-based trainable crossover as an example of partial specialization of general search

open access: yes, 2018
Universal induction relies on some general search procedure that is doomed to be inefficient. One possibility to achieve both generality and efficiency is to specialize this procedure w.r.t. any given narrow task.
A Graves   +7 more
core   +1 more source

Enhanced narrow-band operation of ultra-fast rectennas [PDF]

open access: yes2016 41st International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2016
An effective impedance matching technique for rectennas (an antenna coupled with rectifier) operating at specific frequencies is presented. The rectifier consists of a MIM junction with a molecular insulator. The method used two coplanar strip lines emerging from the antenna feed-point, to correct for the reactive component of the antenna impedance on ...
Etor, David   +3 more
openaire   +1 more source

The Role of Invasive Procedures in the Treatment of Complicated Gastrointestinal Graft‐Versus‐Host Disease in Pediatric Patients

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Gastrointestinal graft‐versus‐host disease (GI GVHD) following hematopoietic stem cell transplant is typically managed with medical therapy, but surgery and angioembolization may be warranted in selected cases with life‐threatening complications.
Gaia Brunetti   +12 more
wiley   +1 more source

Transcranial Doppler Ultrasonography as a Diagnostic Tool for Cerebrovascular Disorders

open access: yesFrontiers in Human Neuroscience, 2022
Imaging techniques including transcranial Doppler (TCD), magnetic resonance imaging (MRI), computed tomography (CT), and cerebral angiography are available for cerebrovascular disease diagnosis.
Yuanmei Pan   +3 more
doaj   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

open access: yesFEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

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