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.
We present an active approach for discriminating different materials by impulsively contacting (hitting) them, and sensing and interpreting the resulting sounds. In theory, the angle of internal friction is diagnostic of material, but invariant over object shape. In our experiments, we observe that the angle of internal friction is not invariant over the frequency of the sound spectrum for which it...
Cross-domain information sharing is the cornerstone of joint operations. This is particularly true in the context of intelligence activities, where raw data must be collected, distributed, analyzed, validated, and annotated before any usable information product can be created. A significant barrier to rapid, efficient, and effective data distribution and analysis is the tiered, multi-domain access...
This paper details a method of using existing tools and practices that have long been exploited by marketing organizations to give commanders a rapid, holistic view of an unfamiliar urban neighborhood. A commander, as regarded in this paper, may be a military commander charged with securing a neighborhood in an area of conflict, or a civilian commander supporting a coalition disaster response effort...
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.