The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The potential of monoamide-based extraction chromatographic materials for actinide recovery was assessed by monitoring uranium partitioning into six different materials. These materials were comprised of two solid supports (Amberlite XAD 4 and XAD 7) coated with one of three extractants: di-2-ethylhexyl butyramide (DEHBA), di-2-ethyhexyl isobutryamide (DEHiBA), or di-2-ethyhexyl acetylamide (DEHAA)...
A novel method for simulating Terahertz (THz) photoconductive antennas in a pulsed system is developed. In this technique, first the excitation signal of the antenna is theoretically derived based upon the optoelectronic characteristics of the THz system. Then, via the use of a full-wave electromagnetic solver (CST) and considering the effect of the receiver, the detected signal is characterized....
In designing terahertz (THz) antennas with high output power and/or high optical-THz conversion efficiency, the photoconductor property is an important consideration. According to the type of the optical excitation, THz antennas can be divided into two categories: THz photoconductive antennas in a pulsed system and THz photomixing antennas in a Continuous-Wave (CW) system. How different excitation...
Terahertz (THz) photoconductive antennas are the most common devices for the generation and detection of THz waves. One of the main problems of the current photoconductive antennas as the emitter is that the optical-THz conversion efficiency is very low, thus it is difficult to obtain high power THz radiation. Impedance mismatching between the antenna and the photoconductive material (which acts as...
This paper deals with two of the most important and difficult aspects of portable planar broadband antennas: the ground plane effects and measurements. To minimize the ground plane effects, optimized slots are created on the ground plane to limit the current flow hence the ground plane effects, which is demonstrated to be a simple but effective approach. For the antenna measurement, our focus is on...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.