Results 81 to 90 of about 11,386 (216)

A direction sensitive detonation model for granular to continuum scale for shock initiation of pentaerythritol tetranitrate single crystal in multi-dimensions

open access: yesAIP Advances, 2015
Experiments have shown that the shock sensitivity of a single crystal pentaerythritol tetranitrate (PETN) has a strong dependence on the crystal orientation. The ignition and growth (I & G) model has been widely used in studies of the shock initiation of
Ki-Hong Kim, Jack J. Yoh
doaj   +1 more source

Phylogeographic and Potential Distribution of Wild Apricot (Prunus armeniaca) in Xinjiang: Insights From Chloroplast/Nuclear DNA and Ecological Niche Modeling

open access: yesEcology and Evolution, Volume 16, Issue 3, March 2026.
This study employed integrated analyses of chloroplast DNA and nuclear genes, which revealed significant divergence in genetic structure between the two genomic compartments in Xinjiang wild apricots, reflecting complex evolutionary processes influenced by natural selection, genetic drift, and gene flow. Population history analyses indicated an absence
Mingyu Li   +9 more
wiley   +1 more source

Pasteurella multocida Heddleston serovar 3 and 4 strains share a common lipopolysaccharide biosynthesis locus but display both inter- and intrastrain lipopolysaccharide heterogeneity [PDF]

open access: yes, 2013
Pasteurella multocida is a Gram-negative multispecies pathogen and the causative agent of fowl cholera, a serious disease of poultry which can present in both acute and chronic forms. The major outer membrane component lipopolysaccharide (LPS) is both an
Blackall PJ   +24 more
core   +1 more source

INVESTIGATION OF THE CHARACTERISTICS OF OF PETN AND RDX CRYSTALS EXPLOSIVE DECOMPOSITION

open access: yesВестник Кемеровского государственного университета, 2013
The measurements of the emission spectra of single RDX crystals in the predetonation mode when irradiated with an electron beam pulse (0.25 MeV, 20 ns, 40 J/cm2) at the temperatures of 80 K and 300 K are reported.
B. P. Aduev   +2 more
doaj  

Molecular Dynamics Simulations of Weak Detonations [PDF]

open access: yes, 2011
Detonation of a three-dimensional reactive non-isotropic molecular crystal is modeled using molecular dynamics simulations. The detonation process is initiated by an impulse, followed by the creation of a stable fast reactive shock wave.
A. N. Dremin   +15 more
core   +2 more sources

Sprayed PETN charges. Final report [PDF]

open access: yes, 1971
A project for the Air Force Special Weapons Center is to develop, test, and deliver thin explosive matrices on aluminum and/or copper foil Mylar laminates. This report briefly discusses problems encountered with the recording of manganin pressure gage data.
openaire   +2 more sources

Thermochemical properties of nanometer CL-20 and PETN fabricated using a mechanical milling method

open access: yesAIP Advances, 2018
2,4,6,8,10,12-Hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane (CL-20) and pentaerythritol tetranitrate (PETN), with mean sizes of 73.8 nm and 267.7 nm, respectively, were fabricated on a high-energy ball-mill. Scanning electron microscope (SEM) analysis was
Xiaolan Song, Yi Wang, Chongwei An
doaj   +1 more source

Mitochondrial oxidative stress and nitrate tolerance – comparison of nitroglycerin and pentaerithrityl tetranitrate in Mn-SOD+/- mice

open access: yesBMC Cardiovascular Disorders, 2006
Background Chronic therapy with nitroglycerin (GTN) results in a rapid development of nitrate tolerance which is associated with an increased production of reactive oxygen species (ROS).
Stalleicken Dirk   +12 more
doaj   +1 more source

The Investigation of Porcelain Plates Roughness Influence on Determination of Explosives Friction Sensitivity

open access: yesApplied Sciences
The influence of the roughness of porcelain plates on the results of the friction sensitivity test of explosives was investigated. For this purpose, the roughness of selected batches of plates from several manufacturers (Julius Peters, OZM Research s.r.o.
Sonia Nachlik, Mateusz Pytlik
doaj   +1 more source

Explosives and pyrotechnic propellants for use in long term deep space missions [PDF]

open access: yes
Explosives and pyrotechnic propellant materials which will withstand heat sterilization cycling at 125 C and ten year deep space aging under 10 to the minus 6th power torr and 66 C have been selected.
Gorzynski, C. S., Jr., Maycock, J. N.
core   +1 more source

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