The rhino and the people who tried to save his species taught one photographer indelible lessons. Joseph Wachira, a keeper at the Ol Pejeta Conservancy in Kenya, says goodbye to Sudan, the last male ...
Abstract: I welcome you to the fourth issue of the IEEE Communications Surveys and Tutorials in 2021. This issue includes 23 papers covering different aspects of communication networks. In particular, ...
Abstract: With the ever-growing number of elevators coupled with the aging workforce, diminishing new installations and limited use of maintenance technology, it is increasingly challenging for the ...
Rhinos are one of Asia and Africa’s oldest groups of mammals. With a population of around half a million at the beginning of the 20th century, there are now only an estimated 27,000 left in the wild.
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