Abstract: An improved aeroprediction code (APC) allows aerodynamics to be predicted for Mach numbers up to 20 for configurations with flares. Moreover, the improved APC advantageously extends the static aerodynamic predictions for Mach numbers less than 1.2, improves the body alone pitch damping for Mach numbers above 2.0, and develops a new capability for pitch damping of flared configurations at Mach numbers up to 20. The improved APC also permits determination of aerodynamic effects associated with power-on events and trailing edge flaps. Corresponding methods are also described.

Abstract: A combination delivering signals between a plurality of devices includes a mixed-layer switching fabric, and a controller which controls the mixed-layer switching fabric. According to the present invention, the controller includes a first device for automatically performing fault recognition and fault isolation routines when the multi-interface switching system is initialized and periodically thereafter, and a second device for performing the fault recognition and fault isolation routines on demand.

Abstract: A multi-interface point-to-point switching system, including a plurality of I/O ports coupled to a plurality of respective devices, a switching fabric, a controller that determines the fixed, low latency signal path for each connection and commands the switching fabric to establish the determined signal path for each connection. According to one aspect of the invention, the switching fabric includes a plurality of discrete switch modules, at least selected ones of which are hot-swappable with permission of the controller.

Abstract: A system for sampling the ambient air of a selected environment for the presence of unwanted chemical vapors, such as nerve or blister gases includes an external air sampling unit and a detector unit having first and second ion mobility spectrometers which simultaneously detect and monitor for the presence of the chemical agent vapors so as to provide an accurate and quick determination of the unwanted chemical vapor within the selected environment.

Abstract: A multi-interface point-to-point switching system includes a plurality of I/O ports coupled to a plurality of respective devices, a switching fabric, and a controller. Advantageously, the controller determines the path bit error rate for each all possible signal paths that are presently available, then selects the presently available one of the possible signal paths for each connection that has the lowest path bit error rate, and then configures the switching fabric to establish the selected signal path for each connection.

Abstract: A multi-interface point-to-point switching system includes a plurality of I/O ports coupled to a plurality of respective devices, a switching fabric that selectively delivers each of a plurality of different signals from a selected one of the I/O ports coupled to a sending one of the devices to another selected one of the I/O ports coupled to a receiving one of the devices, to thereby establish respective connections between the sending and receiving devices, and a controller that determines the latency of all possible signal paths that are presently available for each connection to be established, selects the lowest-latency signal path for each connection that it determines is presently available, and then configures the switching fabric to establish the selected signal path for each connection. According to one aspect of the invention, the switching fabric provides a fixed, low latency signal path for each connection whereby the latency of that connection is deterministic and predictable.

Abstract: A multi-interface point-to-point switching system includes a plurality of I/O devices coupled to a plurality of respective devices, a switching device for selectively delivering each of a plurality of different signals from a selected one of the I/O devices coupled to a sending one of the devices to another selected one of the I/O devices coupled to a receiving one of the devices, to thereby establish respective connections between the sending and receiving devices, wherein the switching device provides a fixed, low latency signal path for each connection between a sending and receiving device for the duration of that connection, whereby the latency of that connection is deterministic and predictable, and a data content of the signal delivered via that connection is not analyzed by the switching device, whereby the switching device operates in a content independent manner, and controller device that determines the fixed, low latency signal path for each connection and commands the switching device to establis

Abstract: The present invention provides a power frequency, i.e., time-varying, magnetic field (PF-NF) detector system for characterizing the operational condition of a remote facility responsive to time-varying magnetic fields generated by electrical transmission lines associated with the remote facility. The PF-MF detector system advantageously includes a PF-MF sensor which generates N time-varying magnetic field data sets, and a PF-MF analyzer which generates an operational condition assessment responsive to the N time-varying magnetic field data sets, wherein N is an integer greater than or equal to 1. Additionally, the PF-MF detector system includes an accumulator which stores and forwards the N time-varying magnetic field data sets to the PF-MF analyzer via a communications channel. A method for characterizing the operational condition of inaccessible electrical equipment responsive to the time-varying magnetic field generated by a transmission line are also described.

Abstract: A White Board system permitting a plurality of users to collaborate with one another irrespective of the respective user's hardware platform or operating system includes a server computer, and a plurality of client computers electrically coupled to the server computer. Preferably, each of the client computers logs into the server computer and is thereby assigned a unique identifier, each of the client computers includes a graphical user interface (GUI) which selectively displays any combination of objects having active content, active hyperlinks, and text, and each of the client computers transmits user-generated objects to the server computer for storage and selective retransmission to the computers. Additionally, the server stores all user-generated objects from all the client computers and selectively controls transmission of all user-generated objects to respective ones of the computers responsive to the respective assigned identifier.

Abstract: A portable system for sampling the ambient air of a selected environment for the presence of unwanted chemical warfare vapors, such as nerve or blister gases, is disclosed. The excitation for the electrical elements of the system can be originated from a battery or from an ac excitation. The system comprises a detector unit having first and second ion mobility spectrometers which simultaneously detect and monitor for the presence of the chemical agent vapors so as to provide an accurate and quick determination of the unwanted chemical vapor within the selected environment, without false alarming to non-chemical warfare agent vapors, which act as interferents. The system design also allows monitoring in the presence of electromagnetic interference (EMI).

Abstract: An assembly that includes a fiber-containing structure that contains a plurality of optical fibers and a furcation tube assembly that includes a plurality of loose tube optical fiber cables. Each of the loose tube optical fiber cables includes a hollow inner tube; a support structure that includes strength members, the support structure surrounding the hollow inner tube; and, a protective jacket surrounding the support structure. The assembly further includes a heat shrink tube that joins the fiber-containing structure and the furcation tube assembly and a protective tube surrounded by the heat shrink tube and disposed in surrounding relationship to the furcation tube assembly. The support structure extends in a first direction between an outer surface of the fiber-containing structure and an inner surface of the protective tube proximate a first end of the protective tube.

Abstract: A multi-interface point-to-point switching system includes a plurality of I/O ports coupled to a plurality of respective devices, and a switching fabric that selectively delivers each of a plurality of different signals from a selected one of the I/O ports coupled to a sending one of the devices to another selected one of the I/O ports coupled to a receiving one of the devices, to thereby establish respective connections between the sending and receiving devices. According to one aspect of the invention, at least one of the different signals is a parallel interface format signal and at least one of the different signals is a serial interface format signal. Moreover, the switching fabric does not interact with any data transfer protocol used by the devices for data communications with one another.

Abstract: An insulator layer for single crystal gallium arsenide substrates in which the insulator layer is compliantly matched with the substrate and the insulator layer is free of defects causing surface roughness and crystalline defect problems which, otherwise, could impair device performance. To accomplish this, the insulator layer is formed on a gallium arsenide substrate as an integral composite or variegated structure including (a) a uniform homogenous film of Group IIa metal atoms attached directly onto a gallium arsenide substrate surface in the form of a monolayer, and (b) a single crystal epitaxial film of a Group IIa metal fluoride deposited on the monolayer.

Abstract: A computer system includes first, second and third computers. Preferably, e first computer includes a first storage device storing a document written in hypertext markup language (HTML), the HTML document including an applet tag for invoking a Universal Client device and computer readable first instructions for generating the Universal Client device, and a first communications device permitting the HTML document and the first instructions for generating the Universal Client device to be downloaded to a second computer, while the second computer includes a second storage device storing computer readable second instructions for permitting the second computer to utilize a World Wide Web browser providing a JAVA.TM.

Abstract: A Universal Client with a self-contained scripting language called GUIScript allows computing systems of varying architectures linked to the Internet or connected by an Intranet to run the same application software without modification or recompilation. Preferably, the computer system includes a computer architecture independent device for generating and displaying a graphic user interface (GUI) on a client computer operatively connected to a server computer. More specifically, the device includes elements: for handling network protocols; for presenting a plurality of GUI objects to thereby form a GUI; for generating scripts defining respective ones of the GUI objects; for generating a GUIScript defining the GUI; for sending one of the scripts and the GUIScript; for receiving one of the scripts and the GUI script; and for scripting both behavior of a program responsive to operator interaction with one of the GUI objects and client-server commands unrelated to the GUI objects.

Abstract: A Universal Client with a self-contained scripting language called GUIScript allows computing systems of varying architectures linked to the Internet or connected by an Intranet to run the same application software without modification or recompilation. Using a client-server architecture, the Universal Client receives GUIScript from the server, which commands the Universal Client to display certain graphical user interface (GUI) objects. The GUIScript also describes the behavior of the GUI objects presented by the Universal Client, thus providing a personality which defines the client application without changing the Universal Client's software. The Universal Client can also send GUIScript to the server to cause the server to execute commands.

Abstract: A transceiver system comprises transceivers and a controller in communication with the transceivers. Each of the transceivers comprises an emitter, a receiver operatively connected to the emitter, a primary data path operatively connected to the receiver, a secondary data path operatively connected to the receiver, a statistical unit operatively connected to the secondary data path and the controller and a display device operatively connected to the primary data path.