Results 1 to 10 of about 16,101 (216)

Field Investigation of Flow Resistance Due to Vegetation Patch (Case Study: Shapur, Fahlian and Dalaki Rivers) [PDF]

open access: yesمحیط زیست و مهندسی آب, 2023
Flow resistance in rivers with vegetation patches is one of the challenging parameters in river engineering. This study aimed to investigate the effect of vegetation patches on flow resistance in Shapur, Fahlian, and Dalaki rivers.
Masoud Naderi   +2 more
doaj   +1 more source

Depths Inferred from Velocities Estimated by Remote Sensing: A Flow Resistance Equation-Based Approach to Mapping Multiple River Attributes at the Reach Scale

open access: yesRemote Sensing, 2021
Remote sensing of flow conditions in stream channels could facilitate hydrologic data collection, particularly in large, inaccessible rivers. Previous research has demonstrated the potential to estimate flow velocities in sediment-laden rivers via ...
Carl Legleiter, Paul Kinzel
doaj   +1 more source

Snarks with Resistance $n$ and Flow Resistance $2n$

open access: yesThe Electronic Journal of Combinatorics, 2022
We examine the relationship between two measures of uncolourability of cubic graphs – their resistance and flow resistance. The resistance of a cubic graph $G$, denoted by $r(G)$, is the minimum number of edges whose removal results in a 3-edge-colourable graph.
Imran Allie   +2 more
openaire   +2 more sources

Cell membranes resist flow [PDF]

open access: yesCell, 2018
SUMMARY The fluid-mosaic model posits a liquid-like plasma membrane, which can flow in response to tension gradients. It is widely assumed that membrane flow transmits local changes in membrane tension across the cell in milliseconds. This conjectured signaling mechanism has been invoked to explain how cells coordinate changes in shape,
Shi, Zheng   +4 more
openaire   +2 more sources

Operating properties of air inlet filters in a sports car engine [PDF]

open access: yesBiuletyn Wojskowej Akademii Technicznej, 2017
There are presented design solutions and operation properties of air inlet filters of motor vehicles and sports cars. An analysis of the impact of the use of a sports car air filter in a passenger car was performed.
Tadeusz Dziubak, Yuriy Yendzheyovskyy
doaj   +1 more source

Properties analysis of filtration materials with nanofibers addition [PDF]

open access: yesBiuletyn Wojskowej Akademii Technicznej, 2019
Nanofiber properties, methods of their production, and areas of their application have been presented. Parameters describing filtration materials with nanofibers addition were presented, and analyzed.
Tadeusz Dziubak, Yurii Yendzheiovskyi
doaj   +1 more source

Flow resistance law in channels with fully submerged and rigid vegetation

open access: yesRiver, 2023
The estimate of flow resistance in vegetated channels is a challenging topic for programming riparian vegetation management, controlling channel conveyance and flooding propensity, for designing soil bioengineering practices.
Alessio Nicosia   +4 more
doaj   +1 more source

Simulation of Accelerated Subcritical Flow Profiles in an Open Channel with Emergent Rigid Vegetation

open access: yesApplied Sciences, 2022
Even though both fluid mechanics and numerical studies have considerably progressed in the past decades, experimental knowledge remains an important tool for studying the resistance to flow in fluid media where a complex environment dominates the flow ...
Antonino D’Ippolito   +4 more
doaj   +1 more source

Controllable Active Micro Droplets Merging Device Using Horizontal Pneumatic Micro Valves

open access: yesMicromachines, 2013
We present an active droplet merging device, which can merge various sizes of micro droplets in different numbers by using pneumatically controlled horizontal PDMS microvalves.
Shuichi Shoji   +4 more
doaj   +1 more source

Model of Flow Resistance Coefficient for a Fragment of a Porous Material Deposit with Skeletal Structure

open access: yesEnergies, 2021
The hydrodynamic conditions resulting from the permeability of porous materials are based not only on the assessment of the gas flow through these materials, but also the losses related to the pressure energy in this flow.
Grzegorz Wałowski
doaj   +1 more source

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