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Integrated heat exchangers for ECS and OBIGGS applications
An integrated heat exchanger comprises a primary heat transfer zone and a secondary heat transfer zone integral to the primary heat transfer zone. The primary...
Method and a device for measuring a force and a position
A method and apparatus for measuring a force and a position at a linear actuating mechanism (20). In one illustrative embodiment, a change in an electrical...
Turbocharger with variable turbine nozzle actuated by hydraulic and
mechanical spring forces
A turbocharger having a variable turbine nozzle that includes an array of vanes whose setting angle is adjustable by rotation of a crank shaft coupled with a...
Systems and methods for offline and/or online batch monitoring using
decomposition and signal approximation...
A method (300, 400, 500, 1200) for offline/online monitoring of batch processes. The method involves (312) decomposing a time domain of a batch process run...
Method of personal navigation using stride vectoring
A method of error compensation for an inertial measurement unit is provided. The method comprises providing a first object including an inertial measurement...
Method and device for three-dimensional path planning to avoid obstacles
using multiple planes
An obstacle-avoidance-processor chip for three-dimensional path planning comprises an analog processing circuit and at least two analog-resistive-grid networks....
System and method for displaying the protected airspace associated with a
A display system and method for an aircraft displays, in real-time, the protected airspace associated with a CTL maneuver. The system processes aircraft...
Method for active power management and allocation of functionality
Methods for active power management, i.e., the power management method may be activated in response to changes in the supply and demand of power in a system,...
Active user interface haptic feedback and linking control system using
either force or position data
A system and method are provided for supplying haptic feedback to, and for electronically linking, pilot and co-pilot user interfaces. The user interface haptic...
Methods and systems for the design and implementation of optimal
multivariable model predictive controllers for...
Methods and systems for the design and implementation of optimal multivariable MPC controllers for fast-sampling constrained dynamic systems utilizing a...
System and method of automatically maintaining a line-of-sight
One exemplary embodiment is directed to a method of automatically maintaining a line-of-sight communication channel. The method comprises determining...
Systems and methods for security and asset management
This invention relates to using consumer devices, such as mobile telephones, to identify, authenticate, locate and contact users of security and asset...
Remote control of a security system using telephone device
System and method for remotely controlling at least one local security system from a telephone device. The system includes a reception section for receiving a...
IEEE 1394 gateway for fault-tolerant communication
In one embodiment, a node comprises a plurality of IEEE 1394 subnet interfaces for communicating over a plurality of IEEE 1394 buses. Each of the plurality of...
Signal conditioning to provide optimum gain and noise reduction for
resonator fiber optic gyroscopes
A resonator fiber optic gyroscope includes a first light source configured to generate a light signal. A resonator element is configured to generate an optical...
System to reduce gyroscopic errors with limited power supply quality in a
fiber optic gyroscope
One embodiment is directed to a power supply for a fiber optic gyroscope that comprises at least one main power supply, at least one demodulator local power...
Ground collision instrument for aircraft and marine vehicles
Radar return processing systems and methods are operable to process radar information when an installation vehicle is operating in proximity to a surface area...
Calibration to improve weather radar positioning determination
A method of calibrating antenna-position detection associated with a radar system, the radar system including a first gimbal and a first angle sensor configured...
Systems and methods for acoustic sensing
An optical-based acoustic sensor system detects sound. An exemplary embodiment has a substrate with a surface and an internal region; a shell disposed above the...
MOS low power sensor with sacrificial membrane
A metal oxide semiconductor (MOS) device includes a substrate, a lower sacrificial membrane adjacent to the substrate, an upper thin film structure adjacent to...
Azeotrope-like compositions of pentafluoropropane, chlorotrifluoropropene,
and hydrogen fluoride
The invention is directed to a ternary azeotrope-like mixture consisting essentially of effective amounts of 1,1,1,3,3-pentafluoropropane, ...
Stabilized compositions comprising ammonium nitrate
Preferred aspects of the present invention provide ammonium nitrate compositions comprising ammonium nitrate and at least one stabilizing agent, and preferably...
Helical inner diameter groove journal bearing
An exemplary bearing assembly includes a turbine side journal bearing with helical grooves along an inner journal surface where each helical groove includes a...
Secondary mixing valve hot port
A thermostatic mixing valve for mixing a hot fluid and a cold fluid to produce a tempered mixed fluid stream. The thermostatic mixing valve may have a valve...
Appliance control with automatic damper detection
Methods and systems for operating a fuel fired appliance that may include an optional hardware component such as a damper are disclosed. In some cases, the...
Ball screw resettable mechanical disconnect
A disengagement/disconnect assembly for disengaging a generator from a gear box includes an inner ball screw having an angled threading on an outer surface...
Decomposition of nonlinear dynamics using multiple model approach and gap
Multiple models for various stages of a non-linear process control are developed by clustering perturbation data obtained from the nonlinear process so as to...
Standby instrument system
An augmented air data and inertial reference system (AADIRS) serving as a standby instrument on an aircraft is provided. A secondary air data and inertial...
Critical resource notification system and interface device
A system and device that communicates critical resource information is described. The resource notification system comprises a resource distributor, a resource...
Systems and methods for receiving and processing multiple carrier
communications and navigation signals
Methods and systems for signal analysis in multiple radio carrier environments are provided. In one embodiment, a radio receiver comprises: an adaptive pass...
Optimal time slot assignment for networks
Terminals of a network are mapped cells. Time slots are allocated to the cells such that the time slots assigned to a first cell are reused as the time slots...
Redundant electromechanical actuator for control surfaces
A redundant electromechanical actuator is provided that includes first and second electric motors, a common output shaft, first and second drive cable drums,...
Remotely configurable analog/digital input circuit and related apparatus
An apparatus includes first and second input terminals configured to be coupled to one of multiple types of input sources. The apparatus also includes a diode...
Button attachment method for saw torque sensor
A method for joining dissimilar materials of sensor button for measuring torque is illustrated. The dissimilar materials can be welded together by laser...
Process for the preparation of 2,3,3,3-tetrafluoropropene (HFO-1234yf)
A process for the preparation of 2,3,3,3-tetrafluoropropene (HFO-1234yf). HFO-1234yf is a refrigerant with low global warming potential. A process comprises a)...
Method for producing fluorinated organic compounds
Disclosed are processes for the production of fluorinated olefins, preferably adapted to commercialization of CF.sub.3CF.dbd.CH.sub.2 (1234yf). In certain...
Portable sample analyzer cartridge
A sample analyzer cartridge for use at a point of care of a patient such as in a doctor's office, in the home, or elsewhere in the field. By providing a...
Methods for introduction of a reactive material into a vacuum chamber
Methods for the introduction of a reactive material into a vacuum chamber while minimizing or eliminating the simultaneous introduction of contaminating...
Process for drawing gel-spun polyethylene yarns
Gel-spun multi-filament polyethylene yarns possessing a high degree of molecular and crystalline order, and to the drawing methods by which they are produced....
Azeotrope-like composition of 2-chloro-1,1,1,2-tetrafluoropropane
(HCFC-244bb) and hydrogen fluoride (HF)
Provided are azeotropic and azeotrope-like compositions of 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb) and hydrogen fluoride (HF). Such azeotropic and...
Combustion blower control for modulating furnace
A furnace includes a combustion blower and one or more pressure switches. In some cases, the one or more pressure switches may be used to calculate one or more...
Spacers and turbines
Spacers and turbines are provided. In an embodiment, and by way of example only, a spacer includes a strip, a first retention flange, and a second retention...
Turbocharger with sliding piston, and having vanes and leakage dams
A turbocharger having a sliding piston for regulating exhaust gas flow into the turbine wheel includes a set of first vanes mounted on a fixed first wall of the...
Fuel line air trap for an unmanned aerial vehicle
A fuel line air trap for an unmanned aerial vehicle has a vessel in-line with a fuel line, fuel line connectors, and fuel inlet and outlet stems. The vessel...
Noise-suppressing strut support system for an unmanned aerial vehicle
A strut support system for a ducted fan unmanned aerial vehicle to suppress noise comprising: a ducted fan fuselage that defines an opening; an engine that...
Electromechanical actuation system and method
Electromechanical actuation systems and methods are provided. The electromechanical actuation system includes first, second, and third linear actuators having...
Cache pooling for computing systems
In a computing system a method and apparatus for cache pooling is introduced. Threads are assigned priorities based on the criticality of their tasks. The most...
Continuous performance analysis system and method
A system and method of conducting a continuous performance analysis for a system includes collecting transient performance data for a first parameter of the...
Inertial signals for flight control backup mode
A flight control system is provided that includes a reference system and flight control actuators. The reference system includes one or more sets of gyroscopes...
Electronic circuit breaker apparatus and systems
Electronic circuit breakers and systems for isolating a load from a power-supply unit are provided. One electronic circuit breaker includes a current sensor, a...