The case study evidence presented in Chapters Three through Five of this report suggests that, in the critical area of radar-related microwave and millimeter-wave technologies, the dual-use promise of CMI and related acquisition reform measures is real. The technological breadth and depth necessary to support a comprehensive CMI strategy appears to be emerging, and there is some evidence to sug...

RF and wireless applications stems from the view that, because of its flexibility, it can be exploited to overcome the limitations exhibited by integrated RF devices1 and, in doing so, enables circuits with new levels of performance not achievable otherwise. Thus, the ultimate goal in applying RF MEMS is to propagate the device-level benefits all the way up to the system level to attain unprece...

We describe an alkali-metal magnetometer for detection of weak magnetic fields in the radio-frequency (rf) range. High sensitivity is achieved by tuning the Zeeman resonance of alkali atoms to the rf frequency and partially suppressing spin-exchange collisions in the alkali-metal vapor. We demonstrate magnetic field sensitivity of 2 fT/Hz(1/2) at a frequency of 99 kHz with a resonance width of ...

Here we investigate the effect of electromagnetic waves with high radio frequency radiation on the antioxidant enzyme activities and seed germination of Zea mays. Three groups of Zea mays seeds were used in this study. The first group was only exposed to RF radiation emitted from the mobile phone simulator. The second group was only exposed to RF radiation emitted from the mobile phone simulato...

electromagnetic field (emf) radiation affects cellular and brain chemistry and function, resulting in deleterious effects such as free radicals formation, impaired dna repair, reduced melatonin and blood brain barrier protection, and defects on learning and memory and other higher brain functions. in this paper the effects of low frequency emf of 50- and 217 hz, ranges often associated with com...

conclusions no interactivity is present in modulatory effects of gabaa receptors and elf-emfs on serum testosterone of male rats. patients and methods fifty adult male rats were randomly assigned into 10 groups. groups 2, 4, 6, 8, and 10 were exposed to elf-emf for 30 days 8hrs per day; while, the remaining groups (1, 3, 5, 7, and 9) were sham exposed animals. at the end of the experiment, anim...

Different types of telecommunication antennas, especially BTS antennas established in residential areas, emit radio frequency (RF) electromagnetic energy. So, community concerns over the health effects from their exposure are growing. To perform hazard assessment related to radio frequency radiation both at telecommunications sites and residential areas, and also to ensure compliance with natio...

Introduction Image blurring due to the signal decay along the echo train as well as the RF energy deposited by the refocusing RF pulses limit the applicability of high turbo factors, i.e. a large number of echoes per shot, in fast spin-echo imaging [1], in particular at higher static magnetic fields. In this work, 2D-selective RF (2DRF) excitations [2,3]are used to focus the field-of-view (FOV)...

We present critiques of epidemiologic studies and experimental investigations, published mostly in peer-reviewed journals, on cancer and related effects from exposure to nonionizing electromagnetic fields in the nominal frequency range of 3 kHz to 300 GHz of interest to Subcommittee 4 (SC4) of the International Committee on Electromagnetic Safety (ICES). The major topics discussed are presented...