In recent years, due to the dramatic growth of wireless applications, the spectrum scarcity is becoming a major issue in future cellular mobile communications, which has drawn a lot of attention in academia and industry [1].
In addition to the fact that (to the best of our knowledge) this study is the first to validate the feasibility of frequency-sharing weather radar systems, the beauty of this work is that we can apply the proposed architecture to other radar applications in which the scarcity of frequency resource is serious.
Although protactinium is located in the periodic table between uranium and thorium, which both have numerous applications, owing to its scarcity, high radioactivity and high toxicity, there are currently no uses for protactinium outside of scientific research.
However, although the benefits of an integrated approach have been widely demonstrated, several aspects have prevented its wide application, such as the scarcity of field data for not only the input and output variables but also parameters that govern intermediate stages of the system, which are useful for robust calibration.
On the basis of these findings, it would seem that the scarcity of application of proprioceptive drills combined with education and training of movement strategies in occupational injury prevention programs is unfortunate, as these techniques are likely to have a pronounced effect on improving the performance of daily work tasks and reducing the likelihood of injury.
Several factors could explain the scarcity of commercial applications.
One major problem for polymer electrolyte fuel cells in commercial applications is the cost and scarcity of platinum, which is used as the cathode catalyst.
Even though data scarcity limited the application of the model, the sites that most likely caused the observed contamination at the waterworks were identified.
This application is hindered by the scarcity, high cost and radioactivity of curium isotopes.
In addition, the growing demand for vehicular applications (V2V applications) will result in scarcity of spectrum dedicated to vehicle communications.
