Abstract: A ring-core erbium-doped fiber amplifier for mode division multiplexing is proposed to amplify 14 orbital angular momentum modes with gains more than 23dB and differential modal gain less ...

The Canada Lynx was listed under the federal Endangered Species Act in 2000. Its federally designated critical habitat includes northeastern Minnesota. (Photo by Washington Department of Fish and ...

A conservation group claims in a new lawsuit that federal timber sales in north central Idaho will degrade grizzly bear habitat and old growth forests while violating multiple federal laws. The Moscow ...

hi folks .i am wokring in angular 20.i configured as pwa and its running in local env even i got offline.the service worker is running in the the browser.but when i visti app in live server ,there is ...