Abstract: A transmitter can include a laser operable to output an optical signal; a digital signal processor operable to receive data and provide a plurality of electrical signals based on the data; and a modulator operable to modulate the optical signal to provide a plurality of optical subcarriers based on the plurality of electrical signals. One of the plurality of subcarriers carries first information indicative of a first portion of the data in a first time slot and second information indicative of a second portion of the data in a second time slot. The first information is associated with a first node remote from the transmitter and the second information is associated with a second node remote from the transmitter. A receiver as well as a system also are described.

Abstract: The method for system level oriented load-pull-based envelope tracking power amplifiers includes steps of performing a multi-dimensional load-pull and selecting the reflection coefficients to be presented to the transistor while taking into account the system level architecture of the power amplifier. It is shown that adopting the proposed load reflection coefficient selection algorithm leads to an additional efficiency enhancement. This extra performance is achieved without additional circuitry or cost.

Abstract: The present invention consists of a hand pump type of device for irrigation or cleansing of wounds or laceration comprising a hand held pumping device, a back splash shield secured to a fluid nozzle, elongate clear plastic tubing connecting the hand held pumping device to a bottle of medicinal fluid for cleansing the wound or laceration. With the present invention, the user of this device merely opens up a sterile package, removes the device, removes the top from a standard sized bottle of medicinal fluid, typically isotropic saline solution, and screws on a cap or top having a dip tube extending adjacent the bottom of the bottle of fluid, and then begins to simply and easily pump away until the desired amount of fluid has been delivered to the wound site to cleanse it. Both the nozzle and the pumping mechanism have been designed so that the pressure and spray pattern of fluid being delivered to the wound are in the optimal range of substantially four to fifteen psi.

Abstract: A device for use in the correct application and monitoring of the technique of ACF (Applied Cricoid Force) during tracheal intubation comprises a cylinder (1), a piston (2), seal (10) and either an aneroid gauge (3) or a calibrated spring (6) which provides resistance to force applied to the device and at the same time permits monitoring of the force applied. The device may also or alternatively be used as a training tool on a suitable patient substitute e.g. a table, bench or a manikin, until the trainee gains the experience and skills which enable them to reproduce the correct force when applying cricoid force directly on patients.

Abstract: Uneven wear of the cutting edges of rotating trepanning or drilling tools is avoided by employing at least two cutting blades, by providing a single support strip embedded in an elastically pliable material, and by arranging the cutting blades such, that the resultant force of the cutting forces produced during the drilling operation is directed to the support strip and is of a magnitude such that the lubricant film bracing said strip against the borehole wall does not break away.