Abstract: A system for latching an unmanned aerial vehicle (UAV) has a first UAV for performing a mission and configured with a latchable structure; a second UAV connected to a latching mechanism for assisting the first UAV in performing the mission; and a controller for dispatching the second UAV toward the first UAV and for commanding latching of the latching mechanism with the latchable structure of the first UAV in midair in order to assist the first UAV in performing the mission. In a UAV landing method, the second UAV is dispatched towards the first UAV while a cable extending from the latching mechanism is movably connected to a landing platform; the latching mechanism becomes latched to the latchable structure of the first UAV; and the first UAV is caused to land at the landing platform by reducing a length of the cable from the latching mechanism to the landing platform.

Abstract: In conjunction with a system and method for optimizing mission conditions of a vehicle, one or more control surfaces movably mounted on a buoyancy-influenced vehicle and configured to maintain stable vehicular movement through a corresponding medium being navigated by the vehicle are individually, controllably and differentially displaced until an optimal position for each of the control surfaces that is collectively suitable to achieve optimum mission conditions is established. In one embodiment, a method for reducing drag induced by a propeller of a propeller-bearing aircraft during forward flight comprises rotating a propeller having one or two blades, when inactive, to an optimal drag-minimizing stowing angle which is angularly spaced from a forward direction of flight of the aircraft.

Abstract: A rotor lock mechanism is disclosed. The mechanism includes a pair of arms at a chosen offset angle # with respect to a long axis of a pair of rotor blades; an arm engagement device configured to restrain rotary motion of the arms; and a rotor drive shaft to which the pair of arms and the pair of rotor blades are attached. A method of use is also disclosed.

Abstract: A hybrid aerial vehicle (HAV) comprising: a fuselage of the HAV; a first mechanism within the fuselage for accepting a plurality of wings of the HAV, the first mechanism allowing coordinated contraction of the plurality of wings essentially into the fuselage such that tips of the wings are position in proximity of the fuselage and coordinated extension of the wings such that tips of each wing are positioned away from the fuselage; a first wing extending from the port side of the fuselage and connected to the first mechanism; a second wing extending from the starboard side of the fuselage and connected to the first mechanism; a second mechanism placed within the fuselage in proximity to its front end, the second mechanism allowing motion of propellers of the HAV affixed there to between a first plain and a second plain; a first set of propellers affixed at the port side of the fuselage to the second mechanism; a second set of propellers affixed at the starboard side of the fuselage to the second mechanism; a t

Abstract: Provided is a propulsion system, including a first propulsion unit, a second propulsion unit, a rotor, a first coupling and a second coupling. The first propulsion unit is configured for being fixedly mounted to an airframe. The rotor is configured for being pivotably mounted with respect to the first propulsion unit to allow selectively pivoting of the rotor from a horizontal mode to a vertical mode. The first coupling is configured for selectively coupling and decoupling the rotor with respect to the first propulsion unit. The second coupling is configured for selectively coupling and decoupling the rotor with respect to the second propulsion unit, independently of the first coupling.

Abstract: A hybrid aerial vehicle (HAV) comprising: a fuselage of the HAV; a first mechanism within the fuselage for accepting a plurality of wings of the HAV, the first mechanism allowing coordinated contraction of the plurality of wings essentially into the fuselage such that tips of the wings are position in proximity of the fuselage and coordinated extension of the wings such that tips of each wing are positioned away from the fuselage; a first wing extending from the port side of the fuselage and connected to the first mechanism; a second wing extending from the starboard side of the fuselage and connected to the first mechanism; a second mechanism placed within the fuselage in proximity to its front end, the second mechanism allowing motion of propellers of the HAV affixed there to between a first plain and a second plain; a first set of propellers affixed at the port side of the fuselage to the second mechanism; a second set of propellers affixed at the starboard side of the fuselage to the second mechanism; a t

Abstract: A propulsion system assembly is provided including a driveshaft and a plurality of electric motor modules. The driveshaft is rotatably mounted to a casing about a drive axis, the driveshaft including a first shaft end and an opposite facing second shaft end. The plurality of electric motor modules are in axially stacked relationship with one another with respect to the drive axis to define an electric motor module stack, each electric motor module being configured for transmitting a torque to the driveshaft when coupled thereto independently of at least one other electric motor module. Each electric motor module includes a controllable clutch arrangement for selectively coupling and decoupling the respective electric motor module with respect to the driveshaft to respectively enable and disable transmission of torque between the respective electric motor module and the driveshaft.

Abstract: A method for performing a live topological query includes, with a querying application, using a query graph to create a live topological query result from a database storing a full structure graph while not storing an entirety of the query result in a cache memory. The method further includes, in response to detecting a change within full structure graph, performing a calculation to determine whether the change is relevant to the query result, and notifying the querying application of a relevant change to the query result without relying on a fully cached copy of the query result.

Abstract: A propulsion system is provided, including a first propulsion unit, a second propulsion unit, a rotor, a first coupling and a second coupling. The first propulsion unit is configured for being fixedly mounted to an airframe. The rotor is configured for being pivotably mounted with respect to the first propulsion unit to allow selectively pivoting of the rotor from a horizontal mode to a vertical mode. The first coupling is configured for selectively coupling and decoupling the rotor with respect to the first propulsion unit. The second coupling is configured for selectively coupling and decoupling the rotor with respect to the second propulsion unit, independently of the first coupling.

Abstract: A propulsion system assembly is provided including a driveshaft and a plurality of electric motor modules. The driveshaft is rotatably mounted to a casing about a drive axis, the driveshaft including a first shaft end and an opposite facing second shaft end. The plurality of electric motor modules are in axially stacked relationship with one another with respect to the drive axis to define an electric motor module stack, each electric motor module being configured for transmitting a torque to the driveshaft when coupled thereto independently of at least one other electric motor module. Each electric motor module includes a controllable clutch arrangement for selectively coupling and decoupling the respective electric motor module with respect to the driveshaft to respectively enable and disable transmission of torque between the respective electric motor module and the driveshaft.

Abstract: Each node of a topological database that represents an information technology environment with multi-tenancy capability represents a configuration item within the environment and is characterized by a tenant authorization rule that indicates a list of tenants that are authorized to access the corresponding configuration. An unrestricted result to an unrestricted query is obtained, the unrestricted query being representable as a sub-graph isomorphism. The unrestricted result includes groups of nodes of the database that satisfy the isomorphism. A tenant query is applied to the unrestricted result to obtain an authorized result, the tenant query being representable by the same sub-graph isomorphism as the unrestricted query. The authorized result includes identification of any of the groups whose component nodes are each characterized by a TAR that authorizes access by the querying tenant. A notification is issued to the querying tenant on the basis of the obtained authorized result.

Abstract: Each node of a topological database that represents an information technology environment with multi-tenancy capability represents a configuration item within the environment and is characterized by a tenant authorization rule that indicates a list of tenants that are authorized to access the corresponding configuration. An unrestricted result to an unrestricted query is obtained, the unrestricted query being representable as a sub-graph isomorphism. The unrestricted result includes groups of nodes of the database that satisfy the isomorphism. A tenant query is applied to the unrestricted result to obtain an authorized result, the tenant query being representable by the same sub-graph isomorphism as the unrestricted query. The authorized result includes identification of any of the groups whose component nodes are each characterized by a TAR that authorizes access by the querying tenant. A notification is issued to the querying tenant on the basis of the obtained authorized result.

Abstract: Disclosed herein are a system, computer-readable medium, and method for querying configuration management databases. A topological query from an interpretation of an ambiguous query is executed in a configuration management database.

Abstract: A method for performing a live topological query includes, with a querying application, using a query graph to create a live topological query result from a database storing a full structure graph while not storing an entirety of the query result in a cache memory. The method further includes, in response to detecting a change within full structure graph, performing a calculation to determine whether the change is relevant to the query result, and notifying the querying application of a relevant change to the query result without relying on a fully cached copy of the query result.

Abstract: An efficient method for a reliable and accurate rendering of audio in a virtual reality environment, such as computer gaming. It excels other known rendering methods in its ability to achieve high quality audio rendering in real time conditions using a regular personal computer without any need for a special hardware accelerated audio card. A total of k physical properties are defined for the sound source and for the various objects that may affect the generation and distribution of the sound in the simulated environment. For each one of those physical properties some applicable values are predefined in a granularity which is a parameter of the method. This way a k dimensional grid of data points is defined. For each one of those data point the sounds that will be heard by the listener are offline calculated offline as reference samples.

Abstract: An identification device including a gem having detectable identification data formed thereon mountable on an object, the identification data being related to an identifying feature of the object.

Abstract: A jewelry piece including a jewelry substrate having a recess formed therein, and an identification device, having detectable identification data formed thereon, disposed in the recess.

Abstract: In a network communications system involving a Customer, a Retailer and a acquirer (for example credit-card provider). The method includes a six step procedure for providing a secure way of making network transactions, by providing complete isolation between the customer's full details, needed to complete a transaction, and the retailer or any other third side trying to get access to them by splitting this information to two parts, each transferred in a sperate line of transmission, one between the customer-retailer and the second between the customer and the credit card provider, and when one of them includes initiated response to the consumer, by the acquirer. By doing so living the sole control of data in the acquirers (for example Issuer) secured server.

Abstract: A ring including an ornamental ring portion, and a pair of flanges which are removably mounted onto the ornamental ring portion, the internal diameter of the pair of flanges being sized to fit a user's finger.