Results 21 to 30 of about 877,500 (268)

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

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

Cross-correlation and maximum-likelihood analysis: a new approach to combining cross-correlation functions [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2003
6 pages, 7 figures, accepted for publication in ...
openaire   +2 more sources

Features of Bearing on Underwater Object Using Phase Information of a Differential Stereo Sensor

open access: yesAdvanced Engineering Research
Introduction. Safety of navigation and development of underwater mineral deposits require the accurate detection of various underwater objects. The literature discusses the issues of tracking their motion and trajectory.
V. A. Shirokov   +2 more
doaj   +1 more source

Qualitative elemental analysis using a cross-correlation function

open access: yesАналитика и контроль, 2013
This paper reports on the effectiveness of a method of qualitative cross-correlation analysis for the automatic determination of the presence of elements in a sample using its atomic emission spectrum. The method is based on the calculation of the cross-correlation function of the recorded spectrum and the set of specially transformed element spectral ...
Pankratov, S. V.   +2 more
openaire   +3 more sources

Yen versus rupee: how exchange rate fluctuations shape bilateral trade and an industry-specific S-curve perspective

open access: yesFrontiers in Political Science
IntroductionReinvestigating the S-curve phenomena at the industry level provides deeper insights about industry-specific trade dynamics, at aggregate-level analysis often complicates.
Riaz Ahmad   +5 more
doaj   +1 more source

AUTOCORRELATION AND CROSS-CORRELATION FLOW ANALYSIS ALONG THE CONFLUENCE OF THE KUPA AND SAVA RIVERS

open access: yesRudarsko-geološko-naftni Zbornik, 2021
In this paper, an autocorrelation and cross-correlation analysis of the flow of the Kupa and Sava rivers was performed. The analysis was performed at hydrological stations close to the confluence of these two rivers near the city of Sisak, based on data ...
Marta Caren, Krešimir Pavlić
doaj   +1 more source

Unheard and Under‐Supported: Health‐Related Quality of Life in Children, Adolescents, and Young Adults With Sickle Cell Disease

open access: yesPediatric Blood &Cancer, EarlyView.
Abstract Background Sickle cell disease (SCD) is an autosomal recessive hemoglobinopathy affecting millions of individuals worldwide. The clinical expression and psychosocial burden of SCD vary widely across geographical, cultural, and healthcare system contexts, underscoring the need for setting‐specific approaches to assessment.
Desiré Fantasia   +7 more
wiley   +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

Cross-Correlation Functions for a Neuronal Model

open access: yesBiophysical Journal, 1974
Cross-correlation functions, R(XY)(t,tau), are obtained for a neuron model which is characterized by constant threshold theta, by resetting to resting level after an output, and by membrane potential U(t) which results from linear summation of excitatory postsynaptic potentials h(t). The results show that: (1) Near time lag tau = 0, R(XY)(t,tau) = f(U)
openaire   +2 more sources

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