Showing papers by "Libera! published in 1986"
TL;DR: The diet of cultured sea bass was supplemented with carnitine, in order to determine the effect of this substance on growth and metabolism, and it was evident that L-carnitine has a positive effect on the growth rate and reduces the lipid content of tissues.
77 citations
Patent•
18 Aug 1986TL;DR: In this article, a burst-mode two-way radio communications system in which a plurality of antennas at a base station share a branched antenna switched dependent on the strength of the signal received from a portable transceiver is described.
Abstract: A burst-mode two-way radio communications system in which a plurality of antennas at a base station share a branched antenna switched dependent on the strength of the signal received from a portable transceiver, wherein a switch controller controls operation of one or more branch selection switches on the basis of an instructing signal received from any one of the base station transceivers.
40 citations
Patent•
29 Jul 1986TL;DR: A phase-locked digital synthesizer as mentioned in this paper comprises a voltage-controlled oscillator (6) supplying a frequency divider (7) the output of which is fed to a phase-sensitive detector (9) also receiving an input from a reference oscillator.
Abstract: A phase-locked digital synthesiser comprises a voltage-controlled oscillator (6) supplying a frequency divider (7) the output of which is fed to a phase-sensitive detector (9) also receiving an input from a reference oscillator (10). The output of the detector (9) is fed back by a feedback loop to the voltage-controlled oscillator (6) to achieve phase-locking. The divider (7) receives an input from a logic circuit (8) to control the division ratio of the divider (7), the logic circuit being prompted by a control signal which is also used to select one of a plurality of loop filters (12,13) connected for selectable use in the feedback loop from the detector (9) to the voltage controlled oscillator (6), the selected loop filter being appropriate to the prompted division ratio. Other embodiments include compensating means to correct a loop phase error arising from a change in the division ratio.
27 citations
TL;DR: Carnitine treatment has an appreciable effect on the hatchery-reared sea bass, Dicentrarchus labrax, fry.
Abstract: Carnitine treatment has an appreciable effect on the hatchery-reared sea bass, Dicentrarchus labrax, fry.
The administration of the laevorotatory isomer (1-carnitine) which is engaged in the transport of the acyl and acetyl groups through the mitochondrial membrane, stimulating lipid metabolism, increases the growth rate and the protein content of the treated fry.
The dextrorotatory isomer (d-carnitine), which is an antagonist of the 1-carnitine, has an opposite effect on the growth and metabolism of the treated fry.
27 citations
Patent•
05 Aug 1986TL;DR: In this article, a burst-mode two-way radio communications system with OR-selector was proposed. But the OR-selection process was not considered in this paper, and the OR selection was performed by an operative base station transceiver having regard to the strength of the signal received from a portable transceiver.
Abstract: A burst-mode two-way radio communications system in which transceivers (26) at a base station (20) share a common antenna arrangement having two or more branches (22, 24) and antenna branch selection is made by an operative base station transceiver having regard to the strength of the signal received from a portable transceiver with which communication is established, antenna branch selection being effected by a switch (30) controlled by a switch controller (28), such as an OR-selector, which is connected to all the base station transceivers in order to receive from any such transceiver a switching instruction signal.
12 citations