Results 31 to 40 of about 10,408,415 (315)
The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey : measuring DA and H at z = 0.57 from the baryon acoustic peak in the Data Release 9 spectroscopic Galaxy sample [PDF]
, 2013 We present measurements of the angular diameter distance to and Hubble parameter at z = 0.57 from the measurement of the baryon acoustic peak in the correlation of galaxies from the Sloan Digital Sky Survey III Baryon Oscillation Spectroscopic Survey ...
Anderson, Lauren +39 more
core +7 more sources
A frequency offset compensation method based on all phase FFT amplitude
物联网学报, 2022 Distance measurement is an important part of the wireless location technology.The ranging accuracy of millimeter wave based distance measurement depends on the frequency estimation accuracy of beat signals from the targets, but the existing frequency ...
Yingjie ZHU +3 more
doaj
ACTIVE CONTOUR MODEL USING FRACTIONAL SYNC WAVE FUNCTION FOR MEDICAL IMAGE SEGMENTATION
Asia-Pacific Journal of Information Technology and Multimedia, 2016 Intensity inhomogeneity occurs when pixels in medical images overlap due to anomalies in medical imaging devices. These anomalies lead to difficult medical image segmentation.
Norshaliza Kamaruddin
doaj +1 more source
Sensors, 2021 Transimpedance amplifiers (TIA) are widely used for front-end signal conditioning in many optical distance measuring applications in which high accuracy is often required.
Francisco Javier Meca Meca +3 more
doaj +1 more source
SR-4000 and CamCube3.0 Time of Flight (ToF) Cameras: Tests and Comparison [PDF]
, 2012 In this paper experimental comparisons between two Time-of-Flight (ToF) cameras are reported in order to test their performance and to give some procedures for testing data delivered by this kind of technology.
Piatti, Dario, Rinaudo, Fulvio
core +2 more sources
Long-Distance Free-Space Measurement-Device-Independent Quantum Key Distribution. [PDF]
Physical Review Letters, 2020 Measurement-device-independent quantum key distribution (MDI-QKD), based on two-photon interference, is immune to all attacks against the detection system and allows a QKD network with untrusted relays.
Yuan Cao +22 more
semanticscholar +1 more source
Height-Variable Monocular Vision Ranging Technology for Smart Agriculture
IEEE Access, 2023 Smart agriculture utilizes a variety of advanced technologies to promote sustainable agriculture and provide solutions for intelligent, automated and unmanned agriculture.
Tian Gao +6 more
doaj +1 more source
Sustainability, 2019 Concerns over environmental issues have recently increased. Particularly, construction noise in highly populated areas is recognized as a serious stressor that not only negatively affects humans and their environment, but also construction firms through ...
Nahyun Kwon +4 more
semanticscholar +1 more source
Direct Distance Measurement to the Dusty White Dwarf GD 362 [PDF]
, 2008 We present trigonometric parallax observations of GD 362 obtained over seven epochs using the MDM 2.4m Hiltner Telescope. The existence of a dust disk around this possibly massive white dwarf makes it an interesting target for parallax observations.
Becklin +25 more
core +3 more sources
Sensors, 2023 There is a growing consensus in the global health community that the use of communication technologies will be an essential factor in ensuring universal health coverage of the world’s population.
Leon Nissen +6 more
doaj +1 more source