We’re introduced to the traditional two-stroke diesel engine as thermally efficient but not smooth-running, and then the gas turbine as smooth but much more inefficient. The free piston engine ...

preferably one that can run on everything from kerosene to used cooking oil. This is the problem [Shane] is tackling for his entry to the 2016 Hackaday Prize. It’s an Open Source Two-Stroke ...

All two-stroke (or 2-cycle) engines require the operator to add a mixture of fuel and oil to the fuel tank to support engine ...

A test based on a novel biomarker ... with samples collected from various types of stroke patients in the first six hours after the event. “We need very early-stage blood samples, and they are not ...

Blood Pressure High for Years? Beware of Stroke Risk July 23, 2024 — Years of high systolic blood pressure are linked to a greater risk for the two most common types of stroke. The results ...

This web calculator conducts a z-test for the difference between two populations' proportions. The calculator includes an explanation of inputs and outputs. This web calculator conducts a z-test for ...

A t-test is an inferential statistic used in hypothesis testing to determine if there is a statistically significant difference between the means of two sample populations. A t-test is an ...

This is the product's overall performance score, based on key tests conducted by our industry experts in the CHOICE labs.

Disruptions of blood circulation to the brain may result in a stroke. It occurs in two forms, both potentially life-threatening. If you or someone with you exhibits signs of a stroke, do not delay.

With just over two weeks before the 2024 presidential election, Donald Trump and Kamala Harris are hitting the campaign trail ...