3 research outputs found
Synthetic Vision CFIT Experiments for GA and Commercial Aircraft: “A Picture Is Worth A Thousand Lives”
No full textBecause restricted visibility has been implicated in the majority of commercial and general aviation accidents, solutions will need to focus on how to enhance safety during instrument meteorological conditions (IMC). The NASA Synthetic Vision Systems (SVS) project is developing technologies to help achieve these goals through the synthetic presentation of how the outside world would look to the pilot if vision were not reduced. The potential safety outcome would be a significant reduction in several accident categories, such as controlled-flight-into-terrain (CFIT), that have restricted visibility as a causal factor. The paper describes two experiments that demonstrated the efficacy of synthetic vision technology to prevent CFIT accidents for both general aviation and commercial aircraft
Blends of linear-low-density polyethylene and thermoplastic bloodmeal using maleic anhydride grafted polyethylene as compatibilizer
No full textLinear Low-Density Polyethylene (LLDPE) was blended with Novatein Thermoplastic from bloodmeal (NTP.) The compatibilizing effect of maleic anhydride grafted polyethylene (PE-g-MAH) on mechanical, morphology thermal properties and water absorption were studied and compared with blends without compatibilizer .The amount of polyethylene added was varied between 20% to 70% with 10% of compatibilizer. An improvement in compatibility between NTP and LLDPE was evident across the entire composition range only when using compatibilizer. The tensile strength of blends decreased over that pure LLDPE, but never dropped below that of pure NTP. Results showed that blending NTP with LLDPE decreased water absorption significantly, even more so using a compatibilizer. The result is a more water stable material
PrEP programmes as a framework for tackling HBV infection in adolescents and young adults in KwaZulu-Natal, South Africa.
No full textThese materials have been presented at the Conference on Liver Disease in Africa (COLDA) 2024, to support the the new Evaluation of Vukuzazi LiVEr disease - Hepatitis B 'EVOLVE-HBV' study based at the Africa Health Research Institute (AHRI) in KwaZulu Natal, South Africa.‘EVOLVE-HBV’ research programme explored the PrEP uptake and retention cascade amongst adolescents and youth aged 15-30-year-olds and living with HBV through decentralized sexual health /HIV services of the ‘Thetha nami ngithethe nawe’ and the Long-acting HIV Pre-Exposure Prophylaxis (LAPIS) study.Specific AimAim: We set out to use data from PrEP studies to determine results of HBV screening, treatment uptake and retention amongst adolescents and young adults aged 15-30 years.Ethics and governanceThis work has been approved under the terms of the EVOLVE-HBV project ethics: University of KwaZulu Natal (UKZN) Biomedical Research Ethics Committee (BREC, ref. 00004495/2022) and University College London, UK ethics committee (ref. 23221/001 EVOLVE-HBV).PrEP HIV studies: (BREC/00000473/2019) and BREC/00003735/2021).</p
