Navigation applications

The meaning of identity for an object type is defined, to a great extent, by constraints on whether two distinct objects can have the same attribute values. For example, in a navigation application we may deal with a type Location consisting of a latitude and longitude. If part of the definition of this type includes a constraint that no two distinct location... 

Fig. 3 shows a robot navigation application. This was inspired by an installation of G2 at the Robotics Technology Group at the Savannah River Laboratory. The robots in the example seek the shortest path toward one of the "goals." The user can connect and disconnect the nodes of the example, and G2 will understand if the path exists between the nodes. The animation feature of G2 is used to move the robots during the scenario. The use of robots in a nuclear plant is primarily intended to avoid sending humans into hazardous environments. There are many examples in conventional chemical plants where a similar use of robots would be well justified. 

Top view of 3D woven E-textile antenna is shown in Eigure 9.6. Conductive patch of stainless steel and U-shaped slot are shown at the top. The challenge inherent to many advanced communication and navigation application is achieving wideband operation from a single antenna. One such antenna architecture that is capable of achieving the types of bandwidth required is the slotted patch antenna. This antenna used a thick substrate ( 1.5 cm) and the U-shaped slot to increase the bandwidth. 

The explorative analysis of data sets by visual data mining applications takes place in a three-step process During the first step (overview), the user can obtain an overview of the data and maybe can identify some basic relationships between specific data points. In the second step (filtering), dynamic and interactive navigation, selection, and query tools will be used to reorganize and filter the data set. Each interaction by the user will lead to an immediate update of the data scene and will reveal the hidden patterns and relationships. Finally, the patterns or data points can be analyzed in detail with specific detail tools. 

Documents should be provided, where possible, as individual Portable Document Format (PDF) files, while Extensible Markup Language (XML) must be used to provide a user interface that enables navigation and viewing via a standard web browser. This offers the potential for an applicant to make a compete submission on... 

Inertial sensors are useful devices in both science and industry. Higher precision sensors could find practical scientific applications in the areas of general relativity (Chow et ah, 1985), geodesy and geology. Important applications of such devices occur also in the field of navigation, surveying and analysis of earth structures. Matter-wave interferometry has recently shown its potential to be an extremely sensitive probe for inertial forces (Clauser, 1988). First, neutron interferometers have been used to measure the Earth rotation (Colella et ah, 1975) and the acceleration due to gravity (Werner et ah, 1979) in the end of the seventies. In 1991, atom interference techniques have been used in... 

Anyone trying to navigate through this rich yet frightening reef of Data Systems will appreciate how difficult this can be. In order to chart a course to the system best suited to a particular application, it helps to map Data Systems into three general categories. 

At this stage we can apply specific filters to customize the UltraLink for any application from which it was called. Because the UltraLink is a Web service that can be called by any application, we have rules defining its behavior based on the calling application. This means that certain value pairs described above can be removed based on explicit rules when the UltraLink is called from an application that should provide only a restricted navigation capability. 

Fig. 3.25 Advanced applications CEM Navigator (left) and Liberty (right).

Y. Bar-Shalom, X. R. Li, and T. Kirubarajan, Estimation with Applications to Tracking and Navigation, Wiley, 2001. 

Radioisotope thermoelectric generators (RTGs) are sometimes used as power sources for space systems. In April 1964, a United States RTG navigational satellite, SNAP 9A, reentered the atmosphere and burned up at high altitude over the Mozambique Channel, releasing 629 trillion becquerels (TBq), equivalent to 17,000 Ci, of Pu and 0.48 TBq of Pu (Whicker and Schultz 1982a Richmond 1989). In January 1978, a Soviet RTG satellite, Kosmos 954, reentered the atmosphere over Canada and spread radiouranium across parts of that country (Richmond 1989). The amount of radioactive materials in space applications is expected to increase (Richmond 1989). 

Beryllium is used in the space shuttle orbiter as window frames, umbihcal doors, and the navigation base assembly. An important application for beryllium is inertial guidance components for missiles and aircraft. Here the lightweight, high elastic modulus, dimensional stability, and the capability of being machined to extremely close tolerances are all important. 

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