Core Flooding Setup
Core Flooding Setup - Related Videos
02:41
Responses to Drought and Flooding
0 Views •
2020
Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants. Under normal conditions, water taken up by the plant evaporates from leaves and other parts in a process called transpiration. In times of drought stress, water that evaporates by transpiration far exceeds the water absorbed from the soil, causing plants to wilt. The general plant response to drought stress is the synthesis of hormone...
02:10
The Nucleosome Core Particle
0 Views •
2020
Nucleosomes are the DNA-histone complex, where the DNA strand is wound around the histone core. The histone core is an octamer containing two copies of H2A, H2B, H3, and H4 histone proteins. The paradox Nucleosomes, paradoxically, perform two opposite functions simultaneously. On the one hand, their main responsibility is to protect the delicate DNA strands from physical damage and help achieve a higher compaction ratio. While on the other hand, they must allow polymerase enzymes to access DNA...
02:30
Seedling Flood Assay for Screening Bacterial Resistance in Tomatoes
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2025
Source: Hassan, J. A., et al. High-Throughput Identification of Resistance to Pseudomonas syringae pv. Tomato in Tomato using Seedling Flood Assay. J. Vis. Exp. (2020).This video demonstrates a method to screen for bacterial resistance in different tomato strains using ten-day-old seedlings inoculated with a bacterial suspension. It explains how bacteria invade through stomata, deliver effector proteins to suppress plant immunity, and how plant responses differ between susceptible and resistant...
10:11
The Benthic Exchange of O2, N2 and Dissolved Nutrients Using Small Core Incubations
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Cited by 13 •
2016
Here, we present small core incubations for the measurement of sediment-water gas and solute exchange. These will provide reliable measurements of sediment-water exchange that assess the role of sediment in influencing biological and biogeochemical processes in aquatic ecosystems.
02:23
Visualizing the Effect of pH on Solubilization of the Influenza A Viral Core
0 Views •
2026
Source: Stauffer, S. et al., In Vitro Disassembly of Influenza A Virus Capsids by Gradient Centrifugation. J. Vis. Exp. (2016)This video demonstrates the effect of pH on the solubilization of influenza A viral cores. Gel electrophoresis and protein staining reveal the progressive disassembly of the core structure under acidic conditions.
FAQs
Confining pressure applies stress around the core sample so researchers can examine fluid flow under controlled subsurface-like conditions. This condition helps distinguish flow behavior associated with the porous material from changes caused by the surrounding pressure environment. Varying the pressure provides a way to evaluate how pressure conditions influence measured permeability and fluid displacement behavior.
Changing fluid properties or injection rates can alter how one fluid displaces another through the porous sample. These variables are therefore treated as experimental conditions rather than fixed settings. Comparing results across controlled changes helps researchers determine displacement behavior, observe differences in pressure and flow response, and assess which conditions support a selected recovery strategy.
Together, pressure, flow rate, and produced effluent provide complementary evidence about transport through the core. Pressure and flow measurements support permeability assessment, while the recovered effluent helps indicate how injected fluids move and displace fluids already present. Monitoring these outputs allows researchers to connect operating conditions with fluid-flow behavior and experimental outcomes.
A typical workflow begins by saturating the core sample, followed by applying confining pressure. Pumps then inject one or more fluids under selected pressure and flow conditions. Throughout the run, researchers monitor pressure, flow rate, and produced effluent. They can then compare the recorded responses to evaluate permeability, displacement behavior, or recovery performance.
These experiments are useful when engineers need controlled evidence about fluid movement through porous materials. Applications described for the method include reservoir characterization, enhanced oil recovery studies, carbon storage assessment, groundwater research, and development of efficient subsurface engineering processes. The controlled setup allows conditions to be varied before approaches are considered in broader engineering contexts.
Researchers can evaluate recovery strategies by changing fluid properties, injection rates, and pressure conditions, then observing the resulting flow and displacement responses. Measurements of permeability, pressure, flow rate, and produced effluent provide evidence for comparing those conditions. This makes the approach useful for identifying how selected operating choices affect fluid recovery behavior in a porous sample.