Abstract: A ball turret includes a turret shell having a rear portion and a front portion. The rear portion and the front portion are assembled to form the turret shell. The shell includes a block assembly configured to mount to a mounting element of a weapon system, and a yoke carriage assembly configured to receive and mount to the block assembly. A number of guide rods within the turret shell are configured to mount the yoke carriage assembly thereto and to provide a recoil shock absorber in response to a discharge of the weapon system. The yoke carriage assembly is releasably mounted to the block assembly.

Abstract: A ball turret includes a turret shell having a rear portion and a front portion. The rear portion and the front portion are assembled to form the turret shell. The shell includes a block assembly configured to mount to a mounting element of a weapon system, and a yoke carriage assembly configured to receive and mount to the block assembly. A number of guide rods within the turret shell are configured to mount the yoke carriage assembly thereto and to provide a recoil shock absorber in response to a discharge of the weapon system. The yoke carriage assembly is releasably mounted to the block assembly.

Abstract: Acoustical voice-feedback systems include headsets connected through a connector or central hub for vocalizing and sound formation assistance. A user's voice is conveyed directly into his or her own ear as well as the ears of each connected user. A central hub allows selective connection of one or more headsets to each other, or allows an instructor to selectively connect an instructor headset to one or more instructee headsets.

Abstract: Acoustical voice-feedback systems include headsets connected through a connector or central hub for vocalizing and sound formation assistance. A user's voice is conveyed directly into his or her own ear as well as the ears of each connected user. A central hub allows selective connection of one or more headsets to each other, or allows an instructor to selectively connect an instructor headset to one or more instructee headsets.

Abstract: A system for tracking a gaze of an operator includes a head-mounted eye tracking assembly, a head-mounted head tracking assembly and a processing element. The head-mounted eye tracking assembly comprises a visor having an arcuate shape including a concave surface and an opposed convex surface. The visor is capable of being disposed such that at least a portion of the visor is located outside a field of view of the operator. The head-mounted head tracking sensor is capable of repeatedly determining a position of the head to thereby track movement of the head. In this regard, each position of the head is associated with a position of the at least one eye. Thus, the processing element can repeatedly determine the gaze of the operator, based upon each position of the head and the associated position of the eyes, thereby tracking the gaze of the operator.

Abstract: A method of simulating the behavior of a user-interactive environment, the method comprising: (a) running a virtual environment (VE) simulation application that (1) graphically depicts a VE, (2) receives input from a user that corresponds to a user interaction with the VE, and (3) provides graphical output to the user that corresponds to a condition of the VE; (b) running a functional simulation application that determines the condition for the VE at least in part based upon the user input; (c) communicating the user input received by the VE simulation application to the functional simulation application via a high level architecture (HLA) protocol; and (d) communicating the condition determined by the functional simulation application to the VE simulation application via the HLA protocol.

Abstract: A photothermographic element comprising a support bearing an image forming system comprising:(a) a photosensitive silver halide(b) an organic silver compound(c) a polymer binder and(d) a reducing agent for the organic silver compound, characterized in that the reducing agent comprises a redox-dye-releasing compound of the general formula: ##STR1## in which: R represents an organic group which may be oxidatively cleaved to a thermally immobile form,A represents a bond or a divalent linking group having a chain consisting of up to 12 atoms, which is linked to the carbonyl group via a carbon atom or an oxygen atom, andD represents the chromophore of a thermally mobile dye.

Abstract: A photothermographic element comprising a substrate having coated thereon a photothermographic medium comprising a binder having dispersed therein an organic silver salt or complex, a photocatalyst and a reducing agent, characterized in that the photothermographic medium contains as an antifoggant, in the absence of mercury compounds, an effective antifogging amount of a compound of the general formula: ##STR1## characterized in that: X.sup.1 and X.sup.2 independently represent halogen atoms,X.sup.3 represents a halogen atom or an electron withdrawing substituent, andZ represents the necessary atoms to complete a ring system which may comprise a single ring or a fused ring system which rings may bear substituents.