English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Results are presented for lead free primers based on diazodinitrophenol(DDNP)compared with tests on lead styphnate based primers. First, barrelfriction measurements in 5.56 mm NATO are presented. Second, shot to shotvariations in blast waves are presented as determined by detonating primers ina 7.62x51mm rifle chamber with a firing pin, but without any powder or bulletloaded and measuring the blast wave at the muzzle with a high speed pressuretransducer. Third, variations in primer blast waves, muzzle velocities, andignition delay are presented after environmental conditioning (150 days) fortwo lead based and two DDNP based primers under cold and dry (-25 deg C,0%relative humidity), ambient (20 deg C, 50% relative humidity), and hot & humid(50 deg C, 100% relative humidity) conditions in 5.56 mm NATO. Taken together,these results indicate that DDNP based primers are not sufficiently reliablefor service use.

Performance testing of lead free primers: blast waves, velocity variations, and environmental testing