Results 61 to 70 of about 10,115 (302)

Synchronization‐Dissipation in the Cardiorespiratory System

Advanced Science, EarlyView.
By modeling central nervous coupling and viscoelastic interactions in the cardiorespiratory system we show that synchronization produces a 10% gain in cardiac efficiency in humans. It is surmised that respiratory sinus arrhythmia improves cardiac pumping efficiency by reducing dynamic stress and power dissipation in the pulmonary vasculature.
Joshua R. Border, Alain Nogaret, Andrew Lefevre, Vishal Jain   +3 more
wiley   +1 more source

Modification of Green-Ampt model based on the stratification hypothesis

Shui kexue jinzhan, 2012
A modification of Green-Ampt model is proposed based on the stratification hypothesis,which dynamically divided the soil column is into saturated layer,transient layer and dry layer.The model uses the concept of an equivalent hydraulic conductivity in ...
PENG Zhen-yang, HUANG Jie-sheng, WU Jing-wei, GUO Hui   +3 more
doaj   +1 more source

Saturated hydraulic conductivity values of some forest soils of Ghana determined by a simple method

, 1996
A simple falling-head method is presented for the laboratory determination of saturated hydraulic conductivity of some forest soils of Ghana. Using the procedure, it was found that saturated hydraulic conductivity was positively and negatively correlated
Masopeh, B. A., B. A. Masopeh, M. Bonsu, Bonsu, M.   +3 more
core   +1 more source

A Multimodal Magnetically Driven Soft Robot With Integrated Actuation‐Sensing Based on Photothermal Reprogramming Technology

Advanced Science, EarlyView.
This work reports a thermally safe, photothermally reprogrammable magnetic soft robot with its reprogramming temperature tuned to ∼39.5°C for biocompatibility. It achieves multimodal locomotion (max speed of 1.8 BL/s) and integrates liquid‐metal capacitive sensing to monitor self‐motion and detect environmental changes in simulated gastric environments,
Liu Yang, Yuliao Dong, Kangning Li, Cheng Jing, Ben Wang, Lin Xu   +5 more
wiley   +1 more source

The effect of long-term irrigation with municipal treated wastewater on the saturated hydraulic conductivity of a silt loam soil and its estimation- a case study

علوم آب و خاک, 2017
Treated wastewater may influence soil structure, porosity and as a consequence, soil saturated hydraulic conductivity. This study aims to assess the effect of wastewater on saturated hydraulic conductivity; and to determine the suitable soil solids ...
H. Beigi Harchegani, G. Banitalebi, M. Ghobadinia   +2 more
doaj  

Interacting Parallel Fluidic Hysterons

Advanced Science, EarlyView.
The parallel coupling of fluidic hysterons is introduced, establishing advanced functionalities in inflatable soft systems. A pressure–volume framework reveals how preset volumes Δv∗${\Delta }v^*$ tune nonlinear interactions between hysterons and actuation sequences without changing architecture. Experiments validate the predictions, opening new routes
Katrien Stinissen, Franco Nicolas Piñan Basualdo, Benjamin Gorissen   +2 more
wiley   +1 more source

Analysis on hydraulic characteristics of improved sandy soil with soft rock.

PLoS ONE, 2020
Hydraulic properties of sandy soil from the Mu Us sandy land of Shaanxi Province were analyzed by using SEM technology. Soil porosity, the water characteristic curve, and unsaturated hydraulic conductivity of aeolian sandy soil with added soft rock were ...
Yike Wang, Lei Ge, Shi Chendi, Huanyuan Wang, Jichang Han, Zhen Guo, Yangjie Lu   +6 more
doaj   +1 more source

New Standards for Probabilistic Fitting of Saturated Hydraulic Conductivity

World Environmental and Water Resources Congress 2007, 2007
The KSTAT Standard Committee of the Environmental Water Resources Institute (EWRI) and the American Society of Civil Engineers (ASCE) initiated activities in year 2005. Over the last two years, the KSTAT Committee has produced two preliminary standard-guidance documents expected to be published by ASCE following public review. This paper summarizes the
openaire   +2 more sources

Influence of Degree of Saturation in the Electric Resistivity–Hydraulic Conductivity Relationship [PDF]

Surveys in Geophysics, 2009
The relationship between aquifer hydraulic conductivity and aquifer resistivity, either measured on the ground surface by vertical electrical sounding (VES) or from resistivity logs, or measured in core samples have been published for different types of aquifers in different locations.
Mohamed Ahmed, Fernando A. Monterio Santos   +1 more
openaire   +2 more sources

Soil texture governs the influence of different microplastics on soil hydraulic properties

Vadose Zone Journal
Adequate water availability in soil is crucial for optimal plant growth. However, even small amounts of microplastics (MPs) can disrupt the soil pore structure, impacting water retention and hydraulic conductivity, and consequently plant‐available water.
Katharina J. Neubert, Lutz Weihermüller, Harry Vereecken, Nicolas Brüggemann   +3 more
doaj   +1 more source