نتایج جستجو برای: radar absorbing materials
تعداد نتایج: 484262 فیلتر نتایج به سال:
The polymer/ferroferric oxide (Fe3O4) foam and aerogel composites generally exhibit superior radar absorptivity performance. However, these have poor mechanical thermal properties. This study manufactured a polylactic acid (PLA)/Fe3O4 bio-composite evaluated the absorptivity, thermal, properties of radar-absorbing material. were prepared using solvent casting method to mix PLA Fe3O4 at varying ...
چکیده ندارد.
The effects of energetic electron precipitation into the auroral region at a time of enhanced solar wind have been investigated during a continuous period of 24 h, using the European Incoherent Scatter (EISCAT) radar, an imaging riometer, and particle measurements on an orbiting satellite. The relative effects in the E region (120 km) and D region (90 km) are found to vary during the day, consi...
A release of acid soluble constituents that absorb at 260 mp occurs during the incubation of suspensions of Escherichia coli H (1)) Pseudomonas aeruginosa (2)) or Lactobacillus arabinosus (3) in buffers. Lysogenic E. coli strain Klz as well as nonlysogenie E. coli strains B and B/r excrete ultraviolet-absorbing substances during growth in media deficient in glucose, and a methionine-requiring a...
There has been much interest in the development of two-photon absorbing materials and many efforts to understand the nonlinear absorption properties of these dyes but this area is still not well understood. A computational model has been developed in our lab to understand the nanosecond nonlinear absorption properties that incorporate all of the measured one-photon photophysical parameters of a...
A pologies to George Orwell but the Evidence Based gurus have replaced the Thought Police. The Ministry of Love has been taken over by the Cochrane Collaboration. Perhaps it is just as well! The latest piece of research to cross my desk creates some food for thought. One area of sports medicine that has slipped under the radar is podiatry, where practitioners prescribe orthoses on the basis tha...
In order to develop a low-cost electromagnetic interference shielding and especially absorbing cement materials. In the present study, the utilization of natural magnetite in cement matrix for this purpose was investigated. The dielectric, magnetic and electromagnetic wave absorbing properties of magnetite/cement composites were characterized in the frequency range of 2.6–3.95 GHz (S band). The...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید