Abstract: A system and method that is both effective and accessible. The system is machine-learning enabled, reliable, scalable, versatile, and may be efficiently installed. The system will improve US, state, and local fire suppression efforts because more homeowners will successfully evacuate if they have access to protection. Also, it may allow more fire crews to focus their efforts on the flame front, rather than suppressing structural spot fires in areas where the systems are installed. The system significantly reduces insurance and governmental suppression costs which would provide significant incentives to homeowners. The system minimizes fire related damage to the home, may operate independently from local utilities, may remain in service with minimal attention from the homeowner, and minimize the impact of system discharge on the environment. The system does this by precisely targeting firebrands and discharging only the amount of aqueous solution needed to extinguish the firebrand.

Abstract: Magnetic or non-magnetic microspheres, populations of magnetic or non-magnetic microspheres, and methods for forming magnetic or non-magnetic microspheres are provided. One microsphere configured to exhibit fluorescent and magnetic properties includes a core particle and a monolayer of magnetic particles coupled to a substantial portion of a surface of a core particle. About 60% to about 90% of a surface of a core particle is covered by the monolayer of magnetic particles. The microsphere also includes an outer polymer layer surrounding or encapsulating both the monolayer of magnetic particles and the core particle. One population of magnetic or non-magnetic microspheres is configured to exhibit fluorescent and magnetic properties includes two or more subsets of magnetic fluorescent microspheres. The two or more subsets of microspheres are configured to exhibit different fluorescent and/or magnetic properties. Individual microspheres in the two or more subsets are configured as described herein.

Abstract: A system and method that is both effective and accessible. The system is machine-learning enabled, reliable, scalable, versatile, and may be efficiently installed. The system will improve US, state, and local fire suppression efforts because more homeowners will successfully evacuate if they have access to protection. Also, it may allow more fire crews to focus their efforts on the flame front, rather than suppressing structural spot fires in areas where the systems are installed. The system significantly reduces insurance and governmental suppression costs which would provide significant incentives to homeowners. The system minimizes fire related damage to the home, may operate independently from local utilities, may remain in service with minimal attention from the homeowner, and minimize the impact of system discharge on the environment. The system does this by precisely targeting fire brands and discharging only the amount of aqueous solution needed to extinguish the fire band.

Abstract: A point-to-point microwave radio link that operates in a Frequency Division Duplex (FDD) mode using direct digital modulation with a Continuous Phase-Frequency Shift Keyed (CP-FSK) scheme. The transmit signal is generated by a circuit that uses a Voltage-Control Oscillator (VCO) operating in a microwave radio band. The VCO is deviated over a narrow frequency range that is reduced by a predetermined factor. The output of the VCO is then frequency multiplied by the predetermined factor to produce the modulated microwave output signal at the desired band. The deviation frequency of the VCO is thus chosen to be the reciprocal of the multiplication factor times the transport bit rate.

Abstract: A system for providing network management access to RF outdoor units of a point-to-multipoint wireless network. Network management signals from a network management system (NMS) are transmitted from an outdoor unit (ODU) receiver to destination ODU transmitters via modulation of a low frequency carrier over a frequency reference interconnection carrying a frequency reference signal. The frequency of the carrier is lower than the frequency reference avoiding any interference between the signals.

Abstract: A point-to-point microwave radio link that operates in a Frequency Division Duplex (FDD) mode using direct digital modulation with a Continuous Phase Shift Keyed (PSK) scheme. The transmit signal is generated by a circuit that uses a Voltage-Control Oscillator (VCO) operating in a microwave radio band to obtain the modulated signal. The VCO output is fed to a phase modulator to obtain the modulated signal. The output of the VCO is then frequency multiplied by the predetermined factor to produce the modulated microwave output signal at the desired band.

Abstract: A point-to-point microwave radio link that operates in a Frequency Division Duplex (FDD) mode using direct digital modulation with a Continuous Phase Shift Keyed (PSK) scheme. The transmit signal is generated by a circuit that uses a Voltage-Control Oscillator (VCO) operating in a microwave radio band to obtain the modulated signal. The VCO output is fed to a phase modulator to obtain the modulated signal. The output of the VCO is then frequency multiplied by the predetermined factor to produce the modulated microwave output signal at the desired band.

Abstract: A point-to-point microwave radio link that operates in a Frequency Division Duplex (FDD) mode using direct digital modulation with a Continuous Phase Shift Keyed (PSK) scheme. The transmit signal is generated by a circuit that uses a Voltage-Control Oscillator (VCO) operating in a microwave radio band to obtain the modulated signal. The VCO output is fed to a phase modulator to obtain the modulated signal. The output of the VCO is then frequency multiplied by the predetermined factor to produce the modulated microwave output signal at the desired band.

Abstract: A point-to-point microwave radio link that operates in a Frequency Division Duplex (FDD) mode using direct digital modulation with a Continuous Phase Shift Keyed (PSK) scheme. The transmit signal is generated by a circuit that uses a Voltage-Control Oscillator (VCO) operating in a microwave radio band to obtain the modulated signal. The VCO output is fed to a phase modulator to obtain the modulated signal. The output of the VCO is then frequency multiplied by the predetermined factor to produce the modulated microwave output signal at the desired band.

Abstract: A system for providing network management access to RF outdoor units of a point-to-multipoint wireless network. Network management signals from a network management system (NMS) are transmitted from an outdoor unit (ODU) receiver to destination ODU transmitters via modulation of a low frequency carrier over a frequency reference interconnection carrying a frequency reference signal. The frequency of the carrier is lower than the frequency reference avoiding any interference between the signals.

Abstract: A point-to-point microwave radio link that operates in a Frequency Division Duplex (FDD) mode using direct digital modulation with a Continuous Phase-Frequency Shift Keyed (CP-FSK) scheme. The transmit signal is generated by a circuit that uses a Voltage-Control Oscillator (VCO) operating in a microwave radio band. The VCO is deviated over a narrow frequency range that is reduced by a predetermined factor. The output of the VCO is then frequency multiplied by the predetermined factor to produce the modulated microwave output signal at the desired band. The deviation frequency of the VCO is thus chosen to be the reciprocal of the multiplication factor times the transport bit rate.

Abstract: An apparatus and method are provided for applying clips to mattress spring assemblies in a highly accurate and fast manner via operating or positioning members that properly position the innerspring coils relative to the borderwires for clipping thereof. Improperly positioned innersprings have their end coils shifted past the borderwires as they travel downstream to be clipped by the apparatus and method herein. In this manner, the positioning members are operable to use the progression of the spring assemblies as they are driven downstream to properly position the innerspring coils relative to the borderwires for being clipped thereto.

Abstract: A bio-reactor for cell culture which provides for the introduction of fresh medium without excessive turbulent action. The fresh medium enters the bio-reactor through a filter with a backwash action which prevents the cells from settling on the filter. The bio-reactor is sealed and depleted medium is forced out of the container as fresh medium is added.

Abstract: An improved rotary engine (10) utilizing essentially the Stirling cycle is provided having at least three rotors (12, 34, 56) each separately rotatable within a toroidal housing cavity (15) and about a common axis. Each rotor has a pair of diametrically opposed rotor blocks, so that at least six cylindrical working chambers are formed sufficient to accomodate the Stirling cycle. Heat may be added to the closed circuit engine gas via a heat exchanger (74) thermally connected to any heat source external to the working chambers, such as a solar collector, thus rendering the high efficiency engine suitable for outer space applications. A cool compressed gas from one working chamber and a hot exhaust gas from another working chamber pass through respective thermally connected heat exchangers (72, 80) for conservation of energy and increased engine efficiency.

Abstract: A linear motion valve is provided. The valve spool employs magnetically permeable rings, spaced apart axially, which engage a sealing assembly having magnetically permeable pole pieces in magnetic relationship with a magnet. The gap between the ring and the pole pieces is sealed with a ferrofluid. Depletion of the ferrofluid is minimized.

Abstract: Apparatus is disclosed for releasably connecting first and second space objects, such as a spacecraft and a space vehicle, in predetermined spaced relationship. The apparatus comprises at least one probe member (10) mounted on the first object (1), having an elongated shank portion (11), the distal end of which is provided with a tapered nose portion (12). At least one drogue assembly (20) is mounted on the second space object (2) for releasably capturing the probe member 10 upon the first and second objects (1 and 2) being brought into close proximity with each other.The drogue assembly (20) may comprise a housing (21, 28) which carries a cone subassembly (40, 41) having inwardly tapered conical surfaces (42, 43) for receiving the probe member (10).