An organoboron polymer having a backbone with a repeating of at least one kynyl group, at least one silyl group, at least one boranyl group, optionally at least one siloxyl group, and optionally an aryldisilyl group. The boron containing units in and the silicon containing units can be arranged in either random occurrences between each other or in the form of interdispersed block-type structures of each unit.
An antenna adapted for surface deployment is provided. A coaxial feedline, terminated at one end thereof at a feedpoint, has a center conductor and a shield at ground potential. A continuous length of antenna wire having first and second ends is electrically connected at its first end to the center conductor at the feedpoint. A first portion of the continuous length is spooled adjacent the first end. A second portion of the continuous length is deployed from the first portion by means of tension at the second end.
An efficient and cost effective analog telemetry system for transmitting receiving many individual data channels over long distances is provided by having each data channel signal modulate a pseudo-random number (PRN) signal which has been delayed for a distinct number of clock cycles for each data channel. The modulated PRN signals are then outputted to a single data line and summed. At the remote receiver, each data signal is recovered by cross correlating the modulated PRN signals with individual reference PRN signals.
An improved method of having an SCSI controller provide a logical connect between a plurality of host processors using a single SCSI initiator. The controller contains removable host adapters for connection to any type of host processor interface. When a host processor requests status information of a target device, that status information is passed to the requesting processor and subsequently stored in the controller and made available to all other host processors.
A reluctance motor/generator system in which a winding failure event in one channel of a multiple channel multiple phased stator assembly is accommodated by removal of the failed winding from the reluctance motor/generator machine's electrical circuit using electrical switching and an acceptance of reduced machine output capability. This electrical switching also accomplishes a reversal of magnetic polarity in poles of one remaining normal channel of the machine.
A high-reactance transformer is used in combination with a phase-programmed switch to limit and regulate the surge current loading on an AC power source employed to charge a capacitor energy store. A controller commands the phase-programmed switch, which begins the charging cycle by closing at a predetermined phase relation to the AC source. The same switch is used to interrupt the charging when the desired capacitive energy store voltage is reached.
A signal processor utilizes a globally nonlinearly coupled array of nonlinear dynamic elements. In one embodiment of the invention, these elements take the form of bistable overdamped oscillators. The processor exploits the phenomenon of stochastic resonance to amplify a weak periodic signal embedded in noise. In this signal processor, a system or plurality of nonlinearly coupled overdamped oscillators is subject to a weak periodic signal embedded in a noise background. For communication or detection applications, this weak signal component is the signal of interest.
A new compound, tertiarybutylbis-(dimethylamino)phosphine, ((CH(3))(3) C)((CH(3))(2) N)(2) P, is used as a precursor in forming phosphorus-containing semiconductor material by chemical vapor deposition. Tertiarybutylbis-(dimethylamino)phosphine is prepared by reacting a phosphorus trihalide, PX(3), with the tertiarybutyl Grignard reagent ((CH(3))(3) C)MgX. The resultant product is treated with lithium dimethylamide reagent LiN(CH(3))(2). Tertiarybutylbis-(dimethylamino)phosphine is then recovered from the reaction mixture.
A method and apparatus is presented for crystallizing a thin film on a substrate by generating a beam of pulsed optical energy, contouring the intensity profile of the beam, and illuminating the thin film with the beam to crystallize the thin film into a single crystal lattice structure.
An improved SCSI controller provides a logical connection between a plurality of host processors using a single SCSI initiator. The controller contains removable host adapters for connection to any type of host processor interface. When a host processor requests status information of a target device, that status information is passed to the requesting processor and subsequently stored in the controller and made available to all other host processors.