Results 31 to 40 of about 10,336,803 (378)

Strategy for Determining the Stochastic Distance Characteristics of the 2D Laser Scanner Z + F Profiler 9012A with Special Focus on the Close Range

open access: yesSensors, 2018
Kinematic laser scanning with moving platforms has been used for the acquisition of 3D point clouds of our environment for many years. A main application of these mobile systems is the acquisition of the infrastructure, e.g., the road surface and ...
Erik Heinz   +3 more
doaj   +1 more source

Clinical determination of the occlusal plane and its relation with orofacial measurements [PDF]

open access: yesAl-Rafidain Dental Journal, 2007
Aims: To determine the level and angulation of the occlusal plane of the artificial dental arch by measuring the level and angulation of the occlusal plane of completely dentulous subjects and to find the relation of these measurements to some of the ...
Zeina M Ahmad   +2 more
doaj   +1 more source

Research on an improved leader-follower cooperative navigation technology [PDF]

open access: yesZhihui kongzhi yu fangzhen, 2023
To improve the positioning accuracy of the followers in leader-follower cooperative navigation algorithm for multi-USVs based on distance measurement, this algorithm integrates the distance measurements between the followers into the traditional leader ...
CHEN Dongyu
doaj   +1 more source

Enhancing Multi-Distance Phase Retrieval via Unequal Interval Measurements

open access: yesPhotonics, 2021
In the conventional methods of multi-distance phase retrieval, the diffraction intensity patterns are recorded at equal intervals, which can induce slow convergence or stagnation in the subsequent reconstruction process.
Cheng Xu   +6 more
doaj   +1 more source

A Novel Three-Head Ultrasonic System for Distance Measurements Based on the Correlation Method

open access: yesMeasurement Science Review, 2014
A novel double-emitter ultrasonic system for distance measurements based on the correlation method is presented. The proposed distance measurement method may be particularly useful in difficult conditions, e.g.
Gądek Krzysztof   +2 more
doaj   +1 more source

Aircraft positioning using multiple distance measurements and spline prediction

open access: yesAviation, 2022
During the crucial phases of take-off, initial climb, approach, and landing where aircraft are close to the ground, Global Navigation Satellite Systems (GNSS) signal strength may not be sufficient to guarantee safe operation, especially in the presence ...
Ivan Ostroumov   +2 more
doaj   +1 more source

Redshift Weights for Baryon Acoustic Oscillations : Application to Mock Galaxy Catalogs [PDF]

open access: yes, 2016
Large redshift surveys capable of measuring the Baryon Acoustic Oscillation (BAO) signal have proven to be an effective way of measuring the distance-redshift relation in cosmology. Building off the work in Zhu et al.
Padmanabhan, Nikhil   +4 more
core   +2 more sources

K-band versus I-band Surface Brightness Fluctuations as distance indicators [PDF]

open access: yes, 2001
We evaluate the method of optical and infrared Surface Brightness Fluctuations (SBF) as a distance indicator and its application on 8-m class telescopes, such as the Very Large Telescope (VLT).
Ajhar   +44 more
core   +2 more sources

In-Cell EPR Distance Measurements on Ubiquitin Labeled with a Rigid PyMTA-Gd(III) Tag.

open access: yesJournal of Physical Chemistry B, 2019
Double electron-electron resonance (DEER) measures distances between spin labels attached at well-defined sites in a protein and thus has the potential to report on conformational states of proteins in cells.
Y. Yang   +4 more
semanticscholar   +1 more source

Kompariranje in kalibriranje elektronskih tahimetrov : Comparison and Calibration of Electronic Distance Meters [PDF]

open access: yesGeodetski Vestnik, 2003
All measuring instruments are subject to errors. Due to their characteristics random errors cannot be influenced and with instrument calibration they cannot be eliminated.
Florjan Vodopivec, Dušan Kogoj
doaj  

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