The current century has witnessed infections of pandemic proportions caused by Coronaviruses (CoV) including severe acute respiratory syndrome-related CoV (SARS-CoV), Middle East respiratory syndrome-related CoV (MERS-CoV) and the recently identified SARS-CoV2.Significantly, the SARS-CoV2 outbreak, declared a pandemic in early 2020, has wreaked dev
The World Health Organization declared coronavirus disease 2019 (COVID-19) a pandemic on March 11, 2020.COVID-19, the current global health emergency, is wreaking havoc on human health systems and, to a lesser degree, on animals globally.The outbreak has continued since the first report of COVID-19 in China in December 2019, and the second and thir
On account of their high power, thermal efficiency, good reliability, safety, and durability, low-speed two-stroke marine diesel engines are used as the main drive devices for large fuel and Essential Fatty Acids cargo ships.Most marine engines use heavy fuel oil (HFO) as the primary fuel, however, the physical and chemical characteristics of HFO a
Under the alternating load, the chain of high-speed heavy-duty bucket hoist passes through hundreds of thousands or more shocks, and the final Purslane failure mode is mainly chain plate fatigue fracture.There is no report on this kind of chain fatigue tester at home and abroad.Through force analysis of chain plate, theoretical basis is provided fo
This B12 FOLATE paper aims to contribute to the urgent reflection as a society about environmental protection, in the ultimate challenge that is the sustainable use of energy resources.Since Portugal is at an early stage of market development internally, governmental and local stimulation policies play a central role and are a key element in the su