In traditional sequential single-wing mining practices, one-entry longwall mining systems make it challenging to efficiently and smoothly transfer mining equipment during a continuous mining sequence.In two-entry longwall systems, the headgate of the current panel and the tailgate quest fryer of the next panel are excavated parallel to one another,
Piperazine moiety is a cyclic quest fryer molecule containing two nitrogen atoms in positions 1 and 4, as well as four carbon atoms.Piperazine is one of the most sought heterocyclics for the development of new drug candidates with a wide range of applications.Over 100 molecules with a broad range of bioactivities, including antitumor, antibacterial
The hike in fuel prices and rapid depletion of fuel reserves have compelled scientists to focus on energy conservation, environmental protection, engine performance improvement, and cost saving.The prime objective of the study is to compare the empirical results with response surface methodology (RSM) optimized results in order to check the accurac
kaiser copy stands Health sciences libraries serving universities and medical facilities have long used technology to provide library services, but COVID-19 presented libraries with unique challenges.Libraries shut their doors and adapted to conducting reference, instruction, and outreach, remotely.For some libraries described in Virtual Services i