Author: Ass.Prof.Dr.Wajeeh Kamal Hasan

Veterinary pharmaceuticals have been recently recognized as newly emerging environmental contaminants. Indeed, because of their uncontrolled or overused disposal, we are now facing undesirable amounts of these constituents in foodstuff and its related human health concerns. In this context, developing a well-organized environmental and foodstuff screening toward antibiotic levels is of paramount importance to ensure the safety of food products as well as human health. In this case, with the development and progress of electric/photo detecting, nanomaterials, and nucleic acid aptamer technology, their incorporation-driven evolving electrochemiluminescence aptasensing strategy has presented the hopeful potentials in identifying the residual amounts of different antibiotics toward sensitivity, economy, and practicality. In this context, we reviewed the up-to-date development of ECL aptasensors with aptamers as recognition elements and nanomaterials as the active elements for quantitative sensing the residual antibiotics in foodstuff and agriculture-related matrices, dissected the unavoidable challenges, and debated the upcoming prospects. © 2023 Taylor & Francis Group, LLC. https://www.scopus.com/pages/publications/85165618542?origin=resultslist

With the development of solar energy collection technologies and the mechanism of exploiting solar energy as renewable energy, it was necessary to develop a solar vacuum tube system, which is considered one of the old systems with little efficiency. In order for the development process to be completed, it was necessary to place side reflectors that border the pipes from all sides to better reflect solar radiation and raise the temperature of the pipes to the required level. The optimal angle for increasing temperature was determined by adjusting the sidewalls of mirrors, adjusting the wall width, and comparing angles at various angles (30, 40, 50, 60, 70, 80, 90) degrees, to achieve the best results. The angle of the mirrors on the pipes is adjusted from 30 to 90 degrees, as well as their width from 250 mm to 500 mm, and from 5 a.m. to 5 p.m., with a difference of one hour each reading. The temperature gradient on solar collector tubes increases with time and mirror angle, reaching maximum at noon and 30 degrees. Infrastructural radiation increases significantly at 30 degrees, reaching 700 W/m2. The width of the mirror wall affects radiation reflection and distribution, with a 500 mm width being more effective. The 30-degree angle had the highest thermal efficiency at 84%, while a 500 mm width difference achieved 86%. The novelty of the work varies in terms of developing the thermal efficiency of the solar collector by adding these influential factors to it. Copyright: ©2024 The authors. https://www.scopus.com/pages/publications/85186901413?origin=resultslist

With tremendous promise for environmentally friendly and economically viable solutions, solar water heaters have emerged as a prospective replacement for traditional energy-intensive water heating techniques. Integrated pressure solar water heaters have become more popular among different solar water heater designs because of their capacity to function under high-pressure settings, making them appropriate for both domestic and commercial applications. The best way to gather and use energy from such systems is to increase their thermal efficiency, which will also aid in overall energy conservation efforts. Reflective mirrors are used to reflect solar radiation from different dimensions, and a material absorbs incoming radiation at the same distance. Coordinates and time are determined for precision. The thermal reflection attributes of the solar heater material and layers are established, with projection altitude angle variations set from 0 to 40 degrees. The results show the temperature gradient favors reflectors at a distance of 5 cm, reaching 312 K at 1:00 pm. The temperature on the solar collector and reflector increases at a distance of 5 cm, reaching 318 K. The opacity wall absorbs solar radiation better than the obstruction wall, converting it into heat at 315 K. The altitude angle of 0 is better than 40 degrees, as the reflector reflects the radiation through tubes, resulting in higher solar radiation. The presence of the reflector improves the angle to 0 compared to 40 degrees. This knowledge represents the ease of choosing the angle of incident solar radiation in terms of installing solar collectors. © 2024 The authors. This article is published by IIETA and is licensed under the CC BY 4.0 license (http://creativecommons.org/licenses/by/4.0/). https://www.scopus.com/pages/publications/85192347676?origin=resultslist

The research explores the link between solar radiation exposure, brain temperatures, and stroke risk. It highlights the importance of understanding the effects of solar radiation on human health, particularly neurological well-being, due to rising global temperatures. The materials manufactured for the helmet are taken from two layers to improve the thermal insulation of the brain by wearing a helmet. The first layer-representing fiberglass, which is where the value of the conduction coefficient for this layer is 0.363 W/m∙ ℃ . The second layer represents the cotton wrapped for the inner layer of the helmet, which has a thermal conductivity value of 0.026 W/m∙℃, which is a good heat insulator. Human hair is also an insulator for the heat applied to it, as a layer of hair was made simulating the real state with a thermal conductivity coefficient of 0.37 W/m∙℃, and the height of the hair is 1 cm. The human head’s back region experiences higher temperatures, reaching 49.31 ℃ due to heat transfer between the head and brain surface. This affects facial bones and internal organs. Helmets help reduce head temperatures by reflecting and dissipating solar radiation. © School of Engineering, https://www.scopus.com/pages/publications/105021044838?origin=resultslist