In missile propulsion technology it is conventional to employ solid rocket boosters. These boosters are loaded with solid propellants, which are energetic compositions where raw materials are comprised of solid particulates, such as fuel, and oxidizer particles, in which are dispersed and immobilized throughout a binder (polymeric) matrix. The processability of these compositions is not simple ...

BACKGROUND Although recommended for almost a decade, evidence for field effectiveness of vaccinating close adult contacts of newborn infants against pertussis ("cocooning") is lacking. We evaluated the impact of a government-funded cocoon program during a pertussis epidemic in New South Wales, Australia. METHODS We matched all New South Wales laboratory-confirmed pertussis cases aged <4 month...

The present study was designed to achieve the production and characterization of polyclonal antibody of luteinizing hormone (AntiLH) as a basic component of LH radioimmunoassay (RIA). The main objective was to improve the immunogenicity of LH by conjugation of LH with bovine serum albumin (LH: BSA) as a protein carrier using Ethyl dimethylaminopropyl Carbodiimide (ECDI). Production of Anti-LH w...

separation system is one of the most important systems in rockets. the influence of this system on mission success cannot be ignored. in this paper, reliability of a sounding rocket separation system is determined using block diagram and fmea . this system is based on the flexible linear shape charge cross-section and a spring mechanism to accelerate separation. in this investigation, the relia...

Many different sources and platforms are introduced everyday as information content. News article remains one of the primary forms textual written for public. Even with help metadiscourse in writing, authors still face an issue misunderstanding comprehending from their readers. Further analysis is needed to understand usage news article, it will contribute usage. The study aims analyse on about...

Antennas should be small enough to fit in the limited space of IoT devices and, at same time, with multi-band operation across several bands as well ensure stability when embedded a device. In this regard, two different technologies are compared: antenna booster and flexible printed circuit antenna. A comparison is addressed from measured results terms efficiency, concluding that despite more t...