Results 101 to 110 of about 126,204 (311)
Sources of uncertainty in vicarious calibration: understanding calibration target reflectance
, 2003 A field experiment investigated the hypothesis that the nadir reflectance of calibration surface substrates (asphalt and concrete) remains stable over a range of time-scales.
Milton, E.J., Anderson, K., Rollin, E.M.
core
CSF Monoamine Metabolites and Cognitive Trajectory in Early Parkinson's Disease
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Background Imaging and postmortem studies indicate that abnormalities in monoaminergic neurotransmission contribute to cognitive impairment in Parkinson's disease (PD). However, it remains uncertain if cerebrospinal fluid (CSF) monoamine metabolites can serve as biomarkers of cognitive decline in early PD.
Jing‐Yu Shao +7 more
wiley +1 more source
A tracker alignment framework for augmented reality
, 2003 To achieve accurate registration, the transformations which locate the tracking system components with respect to the environment must be known. These transformations relate the base of the tracking system to the virtual world and the tracking system's ...
Julier, S.J. +7 more
core
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective To (1) validate GAD65‐ELISA detection and quantification for type 1 diabetes mellitus and autoimmune neurological diagnoses, (2) correlate ELISA results (reference range < 5 IU/mL) with established radioimmunoprecipitation assay (RIA; ≤ 0.02 nmol/L), and (3) define ELISA clinical utility and pitfalls.
Andrew McKeon +11 more
wiley +1 more source
Multi-Sensor System Calibrations
, 2018 Many applications in robotics require awareness of the state of the robot and its environment. Faced with ambiguities arising in measurements from any single sensor, many applications turn to integrating multiple sensors with often complementary characteristics. This work addresses calibration of multi-sensor systems.
openaire +2 more sources
inTrack: High Precision Tracking of Mobile Sensor Nodes
, 2007 Radio-interferometric ranging is a novel technique that allows for fine-grained node localization in networks of inexpensive COTS nodes. In this paper, we show that the approach can also be applied to precision tracking of mobile sensor nodes.
Balogh, György +9 more
core +1 more source
An Ultrasonic Sensor for Distance Measurement in Automotive Applications [PDF]
, 2001 This paper describes an ultrasonic sensor that is able to measure the distance from the ground of selected points of a motor vehicle. The sensor is based on the measurement of the time of flight of an ultrasonic pulse, which is reflected by the ground. A
Parvis, Marco, Carullo, Alessio
core +1 more source
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective To assess the association and discriminative performance of serum biomarkers with clinical disease progression and survival in patients with amyotrophic lateral sclerosis (ALS). Methods This retrospective study, conducted at Houston Methodist Hospital, Houston, TX, used longitudinal serum samples collected between January 2018 and ...
David R. Beers +7 more
wiley +1 more source
A Digital Sensor Simulator of the Pushbroom Offner Hyperspectral Imaging Spectrometer
Sensors, 2014 Sensor simulators can be used in forecasting the imaging quality of a new hyperspectral imaging spectrometer, and generating simulated data for the development and validation of the data processing algorithms.
Dongxing Tao +3 more
doaj +1 more source
Framework for the Simulation of Sensor Networks Aimed at Evaluating In Situ Calibration Algorithms
, 2020 International audienceThe drastically increasing availability of low-cost sensors for environmental monitoring has fostered a large interest in the literature.
Rivano, Hervé +5 more
core +1 more source