Publications by authors named "Alaa Elsayed"
In this study, four Artificial intelligence (AI) - based machine learning models were developed to estimate the Residual compressive strength (RCS) value of concrete supported with nano additives of Nanocarbon tubes (NCTs) and Nano alumina (NAl), after exposure to elevated temperatures ranging from 200 to 800 degrees. These models were developed via adapting meta- heuristic models including the Water cycle algorithm (WCA), Genetic algorithm (GA), and classical AI models of Artificial neural networks (ANNs), Fuzzy logic models (FLM), in addition to the statistical method of Multiple linear regression (MLR). 156 post heating experimental results available as a literature data (represents four input parameters of temperature change, heat exposure duration, nanomaterial type, and replacement proportion) are used to achieve the study's objective.
View Article and Find Full Text PDFArticle Synopsis
- This study explores how combining waste powders from marble and granite can improve radiation shielding properties in concrete, using a specific mix design with 6% replacement of cement.
- It also incorporates 1% nano alumina to strengthen the microstructure of the concrete and employs multiple advanced analysis techniques to evaluate the samples.
- The findings indicate that the mixed concrete samples, especially those with granite and nano alumina, offer superior protection against gamma rays and fast neutrons, suggesting their potential use in nuclear and medical settings.
Di-(2-ethylhexyl) phthalate (DEHP), a phthalate plasticizer, is widely spread in the environment, presenting hazards to human health and food safety. Hence, this study examined the probable preventive role of coenzyme10 (CQ10) (10 mg/kg.b.
View Article and Find Full Text PDFBackground: The world is facing an extraordinarily unprecedented threat from the COVID-19 pandemic triggered by the SARS-CoV-2 virus. Global life has turned upside down, and that several countries closed their borders, simultaneously with the blockage of life cycle as a result of the shutdown of the majority of workplaces except the food stores and some few industries.
Main Body: In this review, we are casting light on the nature of COVID-19 infection and spread, the persistence of SARS-CoV-2 virus in food products, and revealing the threats arising from the transmission of COVID-19 in food environment between stakeholders and even customers.
Vancomycin-resistant isolated from camel meat and slaughterhouse workers in Egypt.
Antimicrob Resist Infect Control
June 2020
Background: The emergence of vancomycin-resistant (VRSA) represents a challenge for the treatment of staphylococcal infections in both human and animals worldwide. Although VRSA has been detected in several animal species worldwide, data on the bacterial prevalence in dromedary camels and workers in camel slaughterhouses are scarce.
Methods: We investigated meat samples from 200 dromedary camel carcasses from three different abattoirs that were being prepared to be sent to the markets.