Results 11 to 20 of about 845,306 (261)

Accounting for Uncertainties of the TRMM Satellite Estimates

open access: yesRemote Sensing, 2009
Recent advances in the field of remote sensing have led to an increase in available rainfall data on a regional and global scale. Several NASA sponsored satellite missions provide valuable precipitation data.
Emad Habib   +2 more
doaj   +1 more source

Quantifying errors without random sampling [PDF]

open access: yesBMC Medical Research Methodology, 2003
All quantifications of mortality, morbidity, and other health measures involve numerous sources of error. The routine quantification of random sampling error makes it easy to forget that other sources of error can and should be quantified. When a quantification does not involve sampling, error is almost never quantified and results are often reported ...
LaPole Luwanna M, Phillips Carl V
openaire   +3 more sources

To Compare Blood Glucose Estimation Using the GOD-PAP Technique with the Hexokinase Method [PDF]

open access: yesJournal of Liaquat National Hospital
Background: Glucose is the major source of energy for all the processes working within the human body and hence it’s the major carbohydrate required.
Syeda Sabahat Haider Zaidi   +4 more
doaj   +1 more source

Error Decomposition of Remote Sensing Soil Moisture Products Based on the Triple-Collocation Method Introducing an Unbiased Reference Dataset: A Case Study on the Tibetan Plateau

open access: yesRemote Sensing, 2020
Remote sensing (RS) soil moisture (SM) products have been widely used in various environmental studies. Understanding the error structure of data is necessary to properly apply RS SM products in trend and variation analysis and data fusion.
Jian Kang, Rui Jin, Xin Li, Yang Zhang
doaj   +1 more source

Potential impact of systematic and random errors in blood pressure measurement on the prevalence of high office blood pressure in the United States

open access: yesThe Journal of Clinical Hypertension, 2022
The authors examined the proportion of US adults that would have their high blood pressure (BP) status changed if systolic BP (SBP) and diastolic BP (DBP) were measured with systematic bias and/or random error versus following a standardized protocol ...
Swati Sakhuja   +9 more
doaj   +1 more source

Aging transition by random errors [PDF]

open access: yesScientific Reports, 2017
AbstractIn this paper, the effects of random errors on the oscillating behaviors have been studied theoretically and numerically in a prototypical coupled nonlinear oscillator. Two kinds of noises have been employed respectively to represent the measurement errors accompanied with the parameter specifying the distance from a Hopf bifurcation in the ...
Zhongkui Sun, Ning Ma, Wei Xu
openaire   +2 more sources

Generalized Rational Random Errors [PDF]

open access: yes, 2002
Theil's theory of rational random errors is sufficient for strict exogeneity of group expenditure in separable demand models. Generalized rational random errors is necessary and sufficient for strict exogeneity of group expenditure. A simple, robust, asymptotically normal t-test of this hypothesis is derived based on the generalized method of moments ...
LaFrance, Jeffrey T.   +1 more
openaire   +4 more sources

A General Point-Based Method for Self-Calibration of Terrestrial Laser Scanners Considering Stochastic Information

open access: yesRemote Sensing, 2020
Due to the existence of environmental or human factors, and because of the instrument itself, there are many uncertainties in point clouds, which directly affect the data quality and the accuracy of subsequent processing, such as point cloud segmentation,
Tengfei Zhou   +4 more
doaj   +1 more source

Improved Virtual Gyroscope Technology Based on the ARMA Model

open access: yesMicromachines, 2018
In view of the large output noise and low precision of the Micro-electro-mechanical Systems (MEMS) gyroscope, the virtual gyroscope technology was used to fuse the data of the MEMS gyroscope to improve its output precision.
Jinlong Song   +3 more
doaj   +1 more source

Error Prediction of Air Quality at Monitoring Stations Using Random Forest in a Total Error Framework

open access: yesSensors, 2021
Instead of a flag valid/non-valid usually proposed in the quality control (QC) processes of air quality (AQ), we proposed a method that predicts the p-value of each observation as a value between 0 and 1.
Jean-Marie Lepioufle   +2 more
doaj   +1 more source

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