This thesis deals with the structure and genetic blueprint of lipopolysaccharides (LPS) expressed by the Gram-negative bacterium Haemophilus influenzae (H.influenzae). H. influenzae is an opportunistic pathogen that regularly colonizes the upper respiratory tract and exists in encapsulated (typeable) or nonencapsulated (non-typeable) forms (NTHi). Prior research has indicated that the surface e...

A multicentre trial of pentaerythritol tetranitrate (sustained action) 8o mg. b.i.d. in the 3 months after an acute myocardial infarction is described. Included in the trial were 346 patients, and at 6 months, the mortality rates in the treated and control group were almost identical at 23 per cent. In young male patients, however, a favourable result to pentaerythritol tetranitrate (PETN) was ...

Double base propellants composed of nitrocellulose (NC) and nitroglycerin (NG) have been used in rocket and gun applications since the late 1800s [1] . Such propellants offer several benefits over their more modern composite counterparts, including simple formulation, high modulus and strength, and chlorine-free minimum smoke exhaust products [2,3] . Nevertheless, double base propellants are pl...

Introduction: Xenobiotic contamination is a global concern. Nitroaromatic compounds enter the environment through ammunition, ordnance disposal, burning the outdoors, and leakage of ammunition. Thirty percent of explosives enter the environment without any change, which can cause pollution of soil, water, and health concerns. So, effective remediation of the contaminated area is necessary. Mat...

Time-domain terahertz spectroscopy (TDTS) has been shown to be a promising tool in detection of explosives and explosive related compounds. To date, TDTS for many explosives has been limited to spectral regions <3 THz. With recent improvements in emitters and sensors of THz radiation, we report the THz absorption spectra over an extended frequency band from 0.5 to 6 THz for four explosives: RDX...

In order to obtain the effect of material characteristics explosive on formation collinear explosively formed projectile (EFP)from warhead with dosuble liners, LS-DYNA simulation software was used simulate and analyze forming process EFP from five materials including pe4booster, PETN, TNT, C4 B explosives. The results indicate that increase density, detonation velocity, pressure, velocity lengt...