The Department of Transportation is proposing to add new drug testing guidelines that would permit motor carriers to test truck drivers using oral fluid samples as an alternative to urine testing.

A composite material is tabbed prior to testing, typically, for one of two reasons: to protect the material from damage from applied loads during the test or to increase the area of the loading region ...

When we think of tensile specimen grips, our first mental image is probably that of the wedge grips that apply uniform clamping forces to the ends of flat test specimens. These were discussed in ...

Materials testing machines are predominantly used for the determination of the strength and deformation behaviour of specimens and components. For this purpose, tensile, compression, flexure or shear ...

The Large Bearing Testing Machine has been developed and primarily used for commercial testing of large bearings. It is capable of applying 1,600 kips (7,117 kN) vertical load, and lateral ...

Fission neutrons for materials testing have been available for decades in hundreds of experimental reactors worldwide; an extensive database for irradiated materials is available. Unfortunately, ...

A polymerase chain reaction (PCR) test detects genetic material from a pathogen or abnormal cell sample. Ways of collecting samples include a nasal swab, a saliva swab, or taking a sample of blood.

A 10-panel drug test usually uses a urine sample to check for 10 common drugs, including prescription medications and illicit street drugs, but false positives can happen. The test can detect cannabis ...