Results 21 to 30 of about 587,894 (312)

IntCal13 and Marine13 Radiocarbon Age Calibration Curves 0–50,000 Years cal BP [PDF]

open access: yes, 2013
The IntCal09 and Marine09 radiocarbon calibration curves have been revised utilizing newly available and updated data sets from 14C measurements on tree rings, plant macrofossils, speleothems, corals, and foraminifera. The calibration curves were derived
Beck, J. Warren,   +104 more
core   +1 more source

Correction of bias in self-reported sitting time among office workers – a study based on compositional data analysis

open access: yesScandinavian Journal of Work, Environment & Health, 2020
OBJECTIVE: Emerging evidence suggests that excessive sitting has negative health effects. However, this evidence largely relies on research using self-reported sitting time, which is known to be biased.
Pieter Coenen   +3 more
doaj   +1 more source

Comparison of Measurement Possibilities by Non-Invasive Reflectometric Sensors and Invasive Probes

open access: yesApplied Sciences, 2023
The measurement of the moisture content of building materials is of key importance both in the process of building structures and in their subsequent operation.
Magdalena Paśnikowska-Łukaszuk   +3 more
doaj   +1 more source

On-Wafer Calibration Algorithm for Partially Leaky Multiport Vector Network Analyzers [PDF]

open access: yes, 2005
A new solution for multiport vector network analyzer calibration is presented in this paper. The error model is divided in two separate leaky halves, each of them with crosstalk terms, but without the leakage between the two sides.
Ferrero, Andrea Pierenrico   +1 more
core   +1 more source

Multivariate Curve Resolution Methodology Applied to the ATR-FTIR Data for Adulteration Assessment of Virgin Coconut Oil

open access: yesMolecules, 2023
Virgin coconut oil (VCO) is a functional food with important health benefits. Its economic interest encourages fraudsters to deliberately adulterate VCO with cheap and low-quality vegetable oils for financial gain, causing health and safety problems for ...
Michele De Luca   +6 more
doaj   +1 more source

Automatic planning for machine tool calibration: A case study [PDF]

open access: yes, 2012
Machine tool owners require knowledge of their machine’s capabilities, and the emphasis increases with areas of high accuracy manufacturing. An aspect of a machine’s capability is its geometric accuracy. International Standards and best-practice guides
P. Gregory   +13 more
core   +1 more source

Study on the Detection of Soil Water Content Based on the Pulsed Acoustic Wave (PAW) Method

open access: yesIEEE Access, 2021
The primary objective of this work was the utilization of the pulsed acoustic wave (PAW) method to explore the feasibility of measuring soil water content (SWC) based on the soil acoustic parameter acquisition (SAPA) system.
Yan Xu   +4 more
doaj   +1 more source

Selection and Treatment of Data for Radiocarbon Calibration: An Update to the International Calibration (IntCal) Criteria [PDF]

open access: yes, 2013
High-quality data from appropriate archives are needed for the continuing improvement of radiocarbon calibration curves. We discuss here the basic assumptions behind 14C dating that necessitate calibration and the relative strengths and weaknesses of ...
Beck, J. Warren,   +112 more
core   +1 more source

Robust algorithm for calibration of robotic manipulator model

open access: yes, 2013
The paper focuses on the robust identification of geometrical and elastostatic parameters of robotic manipulator. The main attention is paid to the efficiency improvement of the identification algorithm.
ABBA, Gabriel   +5 more
core   +1 more source

Testing of calibration models in order to certify the overall reliability of the trisonic blowdown wind tunnel of VTI [PDF]

open access: yesFME Transactions, 2010
It is strongly recommended that wind tunnel calibrations become a regular part of the operational cycle for any wind tunnel. They facilitate tunnel-totunnel data comparisons. Standard calibration model, representing a generic winged missile configuration,
Damljanović Dijana, Rašuo Boško
doaj  

Home - About - Disclaimer - Privacy