Redefining the role of obstacles in pedestrian evacuation [PDF]
, 2018 The placement of obstacles in front of doors is believed to be an effective strategy to increase the flow of pedestrians, hence improving the evacuation process.
Garcimartín, A. +5 more
core +1 more source
Clogging mechanisms and preventive measures in artificial recharge systems
Journal of Groundwater Science and Engineering, 2021 Groundwater which occurs in fractured rock or porous aquifers or other geological weak zones such as faults and fractures is usually extracted via boreholes, hand wells or other sources such as springs.
M Shahbaz Akhtar +2 more
doaj +1 more source
Geometry dependence of the clogging transition in tilted hoppers [PDF]
, 2013 We report the effect of system geometry on the clogging of granular material flowing out of flat-bottomed hoppers with variable aperture size D. For such systems, there exists a critical aperture size Dc at which there is a divergence in the time for a ...
A. J. Liu +7 more
core +4 more sources
Silo Clogging Reduction by the Presence of an Obstacle [PDF]
, 2011 We present experimental results on the effect that inserting an obstacle just above the outlet of a silo has on the clogging process. We find that, if the obstacle position is properly selected, the probability that the granular flow is arrested can be ...
Arevalo, R. (Roberto) +5 more
core +1 more source
Evaluation of clogging risk of synthetic filter due to calcium carbonate in agricultural drainage (case study: Romhormoz rejion ) [PDF]
علوم و مهندسی آبیاری, 2022 Using synthetic filters in any location needs familiarity about benefits and challenges of its usage .Currently synthetic filter is widely used in many places in the world .But it hasn't been accepted in Iran because there isn’t enough knowledge and ...
Maede Tamimi +3 more
doaj +1 more source
The role of biofilms in subsurface transport processes [PDF]
, 2010 Landfill and radioactive waste disposal risk assessments focus on contaminant transport and are principally concerned with understanding the movement of gas, water and solutes through engineered barriers and natural groundwater systems.
Bateman, K. +6 more
core +1 more source
Experimental studies on gas-clogging characteristics during groundwater artificial recharge
Shui kexue jinzhan, 2017 Groundwater artificial recharge has been widely used to effectively utilize abundant rainfall in rainy seasons for managing a number of environmental problems such as seawater intrusion and depletion of spring flow caused by groundwater overexploitation.
Longcang SHU +5 more
doaj +1 more source
Transport of Non-Newtonian Suspensions of Highly Concentrated Micro- And Nanoscale Iron Particles in Porous Media: A Modeling Approach [PDF]
, 2010 The use of zerovalent iron micro- and nanoparticles (MZVI and NZVI) for groundwater remediation is hindered by colloidal instability, causing aggregation (for NZVI) and sedimentation (for MZVI) of the particles.
Sethi, Rajandrea +1 more
core +1 more source
Guan'gai paishui xuebao, 2023 【Background and objective】 Water-fertilizer integrated drip irrigation has advantages over traditional methods, including even fertilization, saving water and fertilizer, and precise control. However, emitter clogging is a problem limiting its widespread
HE Kun +4 more
doaj +1 more source
Faunal response to benthic and hyporheic sedimentation varies with direction of vertical hydrological exchange [PDF]
, 2014 1. Sedimentation and clogging of benthic and hyporheic zone substrates is increasingly being recognised as one of the greatest threats to the ecological integrity of riverine ecosystems globally. This ex-situ study examined the influence of sedimentation
Bo +58 more
core +2 more sources