Results 21 to 30 of about 249,030 (262)

Subject-Specific Calculation of Left Atrial Appendage Blood-Borne Particle Residence Time Distribution in Atrial Fibrillation

open access: yesFrontiers in Physiology, 2021
Atrial fibrillation (AF) is the most common arrhythmia that leads to thrombus formation, mostly in the left atrial appendage (LAA). The current standard of stratifying stroke risk, based on the CHA2DS2-VASc score, does not consider LAA morphology, and ...
Soroosh Sanatkhani   +7 more
doaj   +1 more source

Influence of Pyrexia on Pharmacokinetics of Azithromycin and Its Interaction With Tolfenamic Acid in Goats

open access: yesFrontiers in Veterinary Science, 2021
Azithromycin is a macrolide antimicrobial agent of the azalide group with a broad spectrum of activity against gram-negative and gram-positive bacterial organisms.
Sini Mechery   +6 more
doaj   +1 more source

14C Mean residence time of soil organic carbon under contrasting climates in some of rangelands of Khozestan province, Iran [PDF]

open access: yesمجله علوم و فنون هسته‌ای, 2020
Nowadays, to mitigate global warming, soil can play a significant role as a pool of terrestrial carbon. Therefore, the objective of the study was to investigate the effect of climate on the radiocarbon Mean Resistance Time (MRT) in surface and subsurface
A. Owji   +3 more
doaj   +1 more source

Submarine Groundwater Discharge From Sediments and Sand Boils Quantified by the Mean Residence Time of a Tracer Injection

open access: yesFrontiers in Earth Science, 2021
To quantify submarine groundwater discharge, we developed an inexpensive automated seepage meter that applies a tracer injection and the computation of the mean residence time. The SGD-MRT is designed to measure a wide range of discharge rates from about
Michael Schlüter, Philipp Maier
doaj   +1 more source

Stability Analysis and Synthesis for 2-D Switched Systems with Random Disturbance

open access: yesMathematics, 2022
In this paper, the stability analysis and controller design of two-dimensional (2-D) switched system with random disturbances are studied. First, based on the Fornasini–Marchesini local state space model, a random discrete 2-D switched system model is ...
Fei Meng, Xuyu Shen, Xiaofeng Li
doaj   +1 more source

Uptake and depuration kinetics of microplastics with different polymer types and particle sizes in Japanese medaka (Oryzias latipes)

open access: yesEcotoxicology and Environmental Safety, 2021
Microplastic (MP) pollution and the related impacts on aquatic species have drawn worldwide attention. However, knowledge of the kinetic profiles of MPs in fish remains fragmentary.
Yangqing Liu   +6 more
doaj   +1 more source

A novel approach for accurate quantification of lake residence time — Lake Kinneret as a case study

open access: yesWater Research X, 2022
Water residence time, which is affected by increasing water demands and climate change, plays a crucial role in lakes and reservoirs since it influences many natural physical and ecological processes that eventually impact the water quality of the ...
Yael Gilboa   +3 more
doaj   +1 more source

Numerical Study of the Effect of a Power-law Fluid Flow Structures on Levels of Mixing in a Taylor Couette Configuration [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2023
This work is a numerical study on the effects of the flow structures of the power-law fluid between two concentric cylinders with an upward laminar axial flow on levels of mixing and mean residence time through the Taylor Couette system.
S. Khali, R. Nebbali
doaj   +1 more source

Charcoal Fine Residues Effects on Soil Organic Matter Humic Substances, Composition, and Biodegradability

open access: yesAgronomy, 2019
Biochar has been shown as a potential mean to enhance carbon sequestration in the soil. In Brazil, approximately 15% of the produced charcoal is discarded as charcoal fines, which are chemically similar to biochar.
Otávio dos Anjos Leal   +6 more
doaj   +1 more source

A fluid-mechanics based classification scheme for surface transient storage in riverine environments: quantitatively separating surface from hyporheic transient storage [PDF]

open access: yesHydrology and Earth System Sciences, 2013
Surface transient storage (STS) and hyporheic transient storage (HTS) have functional significance in stream ecology and hydrology. Currently, tracer techniques couple STS and HTS effects on stream nutrient cycling; however, STS resides in localized ...
T. R. Jackson, R. Haggerty, S. V. Apte
doaj   +1 more source

Home - About - Disclaimer - Privacy