Vascular Dementia: Introduction. Vascular dementia is the second most common type of dementia after Alzheimer's disease. Vascular dementia is a neurodegenerative disorder of the brain in which there is cognitive decline and deficiencies in mental performance that generally occur in steps.
Basics of RF drive test/testing. RF Drive test/testing is the procedure to evaluate performance of wireless modem/system while driving(or in motion). The wireless modem or system may include any wireless standards such as GSM,WCDMA,HSPA,UMTS,LTE,WIMAX,WLAN etc.
RF - radio frequency. Related Terms. Short for radio frequency, RF is any frequency within the electromagnetic spectrum associated with radio wave propagation. When an RF current is supplied to an antenna, an electromagnetic field is created that then is able to propagate through space. Many wireless technologies are based on RF field propagation. Radio frequency is also abbreviated as rf or r.f..