Abstract: Methods for treating coronavirus disease 2019 (COVID-19), including at least one ocular manifestation of COVID-19, methods for treating conjunctivitis, and methods for reducing COVID-19 transmission comprising administering an effective amount of benzalkonium chloride are disclosed. Pharmaceutical compositions comprising benzalkonium chloride are also disclosed.

Abstract: A folding wingtip aircraft includes a wing that includes a primary portion and a wingtip. The folding wingtip aircraft includes a folding wingtip system configured to rotate the wingtip relative to the primary portion. The folding wingtip aircraft also includes a flight control computer. The flight control computer is configured to, in response to a first determination that a wingtip position of the wingtip is not in a folded position when a second determination indicates that a last completed command by the folding wingtip system was a fold command, set error codes for the folding wingtip system. The flight control computer is also configured to change a setting to indicate that the folding wingtip aircraft is grounded based on the error codes.

Abstract: A method includes implementing, via an electronic controller of an aircraft, an extend command received by the electronic controller from a flight control computer to rotate a wingtip of a wing to a flight position. The method includes, in response to a first determination at the electronic controller that rotation of the wingtip stopped before the flight position during implementation of the extend command, sending a first notification signal to the flight control computer from the electronic controller to cause the aircraft to be grounded and to schedule maintenance of the aircraft. The first notification signal includes one or more first error codes. The first notification signal causes the maintenance to include wingtip-to-latch pin drop maintenance responsive to a determination of the electronic controller indicating that a first particular angle of the wingtip relative to a primary portion of the wing is in a latch pin interference range.

Abstract: A combination deterministic and stochastic waveform generator having a waveform generating algorithm for a waveform s(t)=exp{j2?[g?0tfDET(?)d?+h?0tfSTO(?; x)d?]}, wherein fDET(t) is a deterministic frequency function of time; wherein fSTO(t; x) is a stochastic frequency function of time; wherein 0?g?1 and 0?h?1 are relative weighting parameters; wherein fSTO(t; x) is parameterized on vector x comprised of a discrete set of random/pseudo-random values to yield a waveform; and wherein, for h and g values in between 0 and 1, the waveform is a combination deterministic and stochastic waveform and is partially Doppler tolerant and resistant to electronic attack. The combination deterministic and stochastic waveform is unique from pulse to pulse, is independent of velocity, can be generated by a standard waveform generator, and can be implemented with a standard modern radar system.

Abstract: A folding wingtip aircraft includes a wing that includes a primary portion and a wingtip. The folding wingtip aircraft includes a folding wingtip system configured to rotate the wingtip relative to the primary portion. The folding wingtip aircraft also includes a flight control computer. The flight control computer is configured to, in response to a first determination that a wingtip position of the wingtip is not in a folded position when a second determination indicates that a last completed command by the folding wingtip system was a fold command, set error codes for the folding wingtip system. The flight control computer is also configured to change a setting to indicate that the folding wingtip aircraft is grounded based on the error codes.

Abstract: A method includes implementing, via an electronic controller of an aircraft, an extend command received by the electronic controller from a flight control computer to rotate a wingtip of a wing to a flight position. The method includes, in response to a first determination at the electronic controller that rotation of the wingtip stopped before the flight position during implementation of the extend command, sending a first notification signal to the flight control computer from the electronic controller to cause the aircraft to be grounded and to schedule maintenance of the aircraft. The first notification signal includes one or more first error codes. The first notification signal causes the maintenance to include wingtip-to-latch pin drop maintenance responsive to a determination of the electronic controller indicating that a first particular angle of the wingtip relative to a primary portion of the wing is in a latch pin interference range.

Abstract: A liquid dispensing device (1) having a) a serving bowl (10) configured to retain liquid for consumption by an animal; b) a fresh tank (50) configured to store a fresh liquid therein; c) a used tank (80) configured to store a used liquid therein, wherein used liquid is the liquid which has already been available for consumption of the animal; and d) a carousel (100) having one or more circulation tubs (107) and one or more empty tubs (105), wherein the carousel is configured to rotate about its rotational axis (AR) in a first direction (D1) and in a second direction (D2) opposing the first direction.

Abstract: A folding wingtip aircraft includes a wing that includes a primary portion and a wingtip. The folding wingtip aircraft includes a folding wingtip system configured to rotate the wingtip relative to the primary portion. The folding wingtip aircraft also includes a flight control computer. The flight control computer is configured to, in response to a first determination that a wingtip position of the wingtip is not in a folded position when a second determination indicates that a last completed command by the folding wingtip system was a fold command, set error codes for the folding wingtip system. The flight control computer is also configured to change a setting to indicate that the folding wingtip aircraft is grounded based on the error codes.

Abstract: A method includes implementing, via an electronic controller of an aircraft, an extend command received by the electronic controller from a flight control computer to rotate a wingtip of a wing to a flight position. The method includes, in response to a first determination at the electronic controller that rotation of the wingtip stopped before the flight position during implementation of the extend command, sending a first notification signal to the flight control computer from the electronic controller to cause the aircraft to be grounded and to schedule maintenance of the aircraft. The first notification signal includes one or more first error codes. The first notification signal causes the maintenance to include wingtip-to-latch pin drop maintenance responsive to a determination of the electronic controller indicating that a first particular angle of the wingtip relative to a primary portion of the wing is in a latch pin interference range.

Abstract: Methods for treating coronavirus disease 2019 (COVID-19), including at least one ocular manifestation of COVID-19, methods for treating conjunctivitis, and methods for reducing COVID-19 transmission comprising administering an effective amount of benzalkonium chloride are disclosed. Pharmaceutical compositions comprising benzalkonium chloride are also disclosed.

Abstract: Multi-function waveforms possessing simultaneous radar and communication capabilities provide the means with which to efficiently combat congestion of the spectrum. Here a joint coding/spatial diversity radar/communication waveform design approach is introduced for use with digital antenna arrays. The proposed approach combines the recently developed phase-attached radar/communication (PARC) approach with the far-field radiated emission design (FFRED) formulation to realize the transmission of multiple independent data streams in arbitrary spatial directions concurrently with active radar sensing that is minimally impacted. The resulting physical signals emitted from the elements of the multiple-input multiple-output (MIMO) array have a desirable structure that is constant-modulus and have improved spectral containment relative to the original FFRED formulation.

Abstract: A hydraulic system (e.g., of an aircraft or other vehicle) includes a pump, a pressure line coupled to the pump and configured to distribute pressurized hydraulic fluid, and a return line configured to return hydraulic fluid to a reservoir. The hydraulic system also includes an auxiliary leakage valve coupled to the pressure line, to the return line, and to an actuator. The auxiliary leakage valve is configured to receive a control signal and, based on the control signal, selectively open a restricted fluid path. The restricted fluid path couples the pressure line to the return line to allow a restricted amount of the hydraulic fluid to flow from the pressure line to the return line.

Abstract: A hydraulic system (e.g., of an aircraft or other vehicle) includes a pump, a pressure line coupled to the pump and configured to distribute pressurized hydraulic fluid, and a return line configured to return hydraulic fluid to a reservoir. The hydraulic system also includes an auxiliary leakage valve coupled to the pressure line, to the return line, and to an actuator. The auxiliary leakage valve is configured to receive a control signal and, based on the control signal, selectively open a restricted fluid path. The restricted fluid path couples the pressure line to the return line to allow a restricted amount of the hydraulic fluid to flow from the pressure line to the return line.

Abstract: A system and method for controlling one or more flaps of a wing of an aircraft include a first flap moveably secured to a first wing of the aircraft. The first flap is moveable between an extended position and a retracted position. First and second actuators are coupled to the first flap. A flap control unit is in communication with the first and second actuators. The flap control unit is configured to operate the first and second actuators to move the first flap between retracted and extended positions, monitor a first electrical signal provided to the first actuator, monitor a second electrical signal provided to the second actuator, and determine that the first and second actuators are synchronized by monitoring the first and second electrical signals.

Abstract: A system and method of controlling one or more flaps of an aircraft may include receiving first and second sensor signals from respective first and second sensors coupled to respective first and second actuators that are moveably secured to a first flap of a first wing of the aircraft. The first and second sensor signals relate to one or both of the position or the speed of the respective first and second actuators. The system and method may also include comparing the first and second sensor signals to determine a difference between the first and second sensor signals, and adjusting the speed of one or both of the first or second actuators based on the difference between the first and second sensor signals. A system and method may include determining a difference between one or both of speed or position of the first and second flaps, and adjusting the speed of one or both of the first and second flaps based on the difference between one or both of the speed or the position of the first and second flaps.

Abstract: A system and method for controlling one or more flaps of a wing of an aircraft include a first flap moveably secured to a first wing of the aircraft. The first flap is moveable between an extended position and a retracted position. First and second actuators are coupled to the first flap. A flap control unit is in communication with the first and second actuators. The flap control unit is configured to operate the first and second actuators to move the first flap between retracted and extended positions, monitor a first electrical signal provided to the first actuator, monitor a second electrical signal provided to the second actuator, and determine that the first and second actuators are synchronized by monitoring the first and second electrical signals.

Abstract: A quick hitch coupler having an arrangement for releasably coupling a tool such as an excavator tool to the quick hitch coupler. The arrangement for releasably coupling the tool to the quick hitch coupler has tool pin engaging members on spaced apart portions of the main body of the quick hitch coupler. One of the tool pin engaging members has an associated latching member movably mounted on the main body of the quick hitch coupler between a tool pin locking position and a tool pin releasing position. The latching member has a lock movably mounted on the latching member for locking a tool pin onto the latching member quick hitch coupler in normal use.

Abstract: A zero-footprint remotely hosted phone application development environment is described. The environment allows a developer to use a standard computer without any specialized software (in some embodiments all that is necessary is a web browser and network access) together with a telephone to develop sophisticated phone applications that use speech recognition and/or touch tone inputs to perform tasks, access web-based information, and/or perform commercial transactions. For example, in preparation for a sales pitch for selling hosting services, a non-programmer can develop a short application appropriate to the target customer. After the pitch, access to the demonstration could be given to the target customer to allow them to more fully develop the application. When the target customer is satisfied with the application, they can have their application live for their actual (as opposed to test users) at a suitable phone number simply by having the hosting provider configure the appropriate access.

Abstract: A quick hitch coupler having an arrangement for releasably coupling a tool such as an excavator tool to the quick hitch coupler. The arrangement for releasably coupling the tool to the quick hitch coupler has tool pin engaging members on spaced apart portions of the main body of the quick hitch coupler. One of the tool pin engaging members has an associated latching member movably mounted on the main body of the quick hitch coupler between a tool pin locking position and a tool pin releasing position. The latching member has a lock movably mounted on the latching member for locking a tool pin onto the latching member quick hitch coupler in normal use.