~ 2 min

Assess the cleaning efficiency as a function of detergent concentration within an hour

What is the optimal surfactant concentration to use in a cleaning formulation? Here we show how the cleaning efficiency as a function of detergent concentration can be assessed within an hour.

~ 5 min

Effect of solid wettability on oil displacement and liberation from host rock in water

Unconventional oils, such as heavy oil, extra heavy oil, and bitumen, normally exist tightly on host solids such as rocks, sands and clay minerals. Successful liberation of unconventional oil from solids is essential for effective recovery.

~ 3 min

How to measure polymer brush swelling and collapse

Polymer brushes, polyelectrolyte multilayers and hydrogels are typically used to achieve desirable properties. Key parameters influencing these properties are layer conformation and the degree of hydration. Here we show a straightforward way to measure polymer brush swelling and collapse.

> 1 min

How to check the transformer oil quality based on ASTM D971 and IEC 62961 standards?

Regular inspection of the transformer oil quality is important to ensure the operation of the transformer. Several methods are available, but the newly released IEC 62691 standard is based on the interfacial tension measurement between water and the transformer oil.

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