Literature review (Part 1)
i) Type your fovourite topic of research in the search engine of Google Scholar
(For example, I typed : 'high voltage power supply' and clicked search. A list of publication has appeared on the google scholar window and subsequently I selected a custom range on left side panel to limit the latest publications. I key-in from 2011 to 2021 and then clicked search button again below it. This time, most of the publications are sorted out to suit my year-preference in google scholar. I simply clicked a journal publication to access it and it took me to the following site : https://ieeexplore...; whereby it was actually redirected to IEEE database. Note: subscription is required to access most of the databases but I used Sci-Hub to crack the access. Sci-Hub always changes its web address so search in google as if it does not work)
ii) Then I cut and pasted the entire web address from google scholar (https://ieeexplore...) onto the Sci-Hub. Afterthat I pressed the open button that accompanied by key sign in Sci-Hub; from which it broken all the barrier to access the journal publication.