Results 21 to 30 of about 935,295 (306)

A GROUP-GALAXY CROSS-CORRELATION FUNCTION ANALYSIS IN zCOSMOS [PDF]

open access: yesThe Astrophysical Journal, 2012
We present a group-galaxy cross-correlation analysis using a group catalog produced from the 16,500 spectra from the optical zCOSMOS galaxy survey. Our aim is to perform a consistency test in the redshift range 0.2 < z < 0.8 between the clustering strength of the groups and mass estimates that are based on the richness of the groups.
Iovino, A.   +48 more
openaire   +8 more sources

Time resolution of cosmic noise observations with a correlation experiment [PDF]

open access: yes, 2004
International audienceA radio wave correlation experiment using a Mills Cross technique can be used to observe the cosmic noise intensity from the ground for the purpose of determining the absorption in the ionosphere.
E. Nielsen   +5 more
core   +1 more source

Evaluation of Cardiac function in COPD patients and correlation with disease severity: A cross sectional study

open access: yesAsian Journal of Medical Sciences, 2021
Background: Chronic obstructive pulmonary disease (COPD) has considerable effects on cardiac functions, including those of the right ventricle, left ventricle, and pulmonary blood vessels.
Subhadip Basak   +5 more
doaj   +1 more source

Gradient-Guided Object Tracking Algorithm with Channel Selection [PDF]

open access: yesJisuanji kexue yu tansuo, 2022
In object tracking task, the target object to be tracked is arbitrary, and there may be similar distractor around the target, which often leads to the target features extracted by the pre-trained network not fully applicable to the tracked target.
CHENG Shilong, XIE Linbo, PENG Li
doaj   +1 more source

Point processes statistics of stable isotopes: analysing water uptake patterns in a mixed stand of Aleppo pine and Holm oak

open access: yesForest Systems, 2015
Aim of study: Understanding inter- and intra-specific competition for water is crucial in drought-prone environments. However, little is known about the spatial interdependencies for water uptake among individuals in mixed stands.
Carles Comas   +3 more
doaj   +1 more source

A Wall-Crossing Formula and the Invariance of GLSM Correlation Functions [PDF]

open access: yesPeking Mathematical Journal, 2019
This article is split from 1602.07638. Submitted and revised version.
Gang Tian, Guangbo Xu
openaire   +3 more sources

Detection and Parameter Estimation Analysis of Binary Shift Keying Signals in High Noise Environments

open access: yesSensors, 2022
In this paper, a new method for detecting and estimating the parameters of a binary phase shift keying (BPSK) signal, based on a cross-correlation function, is proposed. The proposed method consists of two stages.
Van Minh Duong   +4 more
doaj   +1 more source

Diagnosing aerosols in extrasolar giant planets with cross-correlation function of water bands [PDF]

open access: yes, 2018
Transmission spectroscopy with ground-based, high-resolution instruments provides key insight into the composition of exoplanetary atmospheres. Molecules such as water and carbon monoxide have been unambiguously identified in hot gas giants through cross-
Valerio Nascimbeni   +17 more
core   +1 more source

An Acoustic Array Sensor Signal Recognition Algorithm for Low-Altitude Targets Using Multiple Five-Element Acoustic Positioning Systems with VMD

open access: yesApplied Sciences
To solve the problem in target acoustic signal processing and recognition when the target flies at a low altitude based on the acoustic positioning system, which is often affected by external interference and brings false information, this paper proposes
Chunhuan Song, Hanshan Li
doaj   +1 more source

Horizontal spatial correlation of reverberation for rough sea-bottom interface [PDF]

open access: yesMATEC Web of Conferences, 2019
Correlation sonar, which estimates the velocity of vessel utilizing the principle of waveform invariance, can achieve the sampling of the horizontal spatial correlation of sea-bottom reverberation. The horizontal spatial correlation can be expressed as a
Yan Shanyong, Wang Changhong
doaj   +1 more source

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