This disclosure describes a reversible complex of antibiotic AV290 with an alkali metal alkyl sulfate and a process for preparing same. The complex is useful as an animal feed supplement which significantly enhances the growth rate of animals and poultry.

A process for the preparation of a compound of the formulae (Ia) and/or (Ib): wherein R1 and R2 are independently substituted or unsubstituted hydrocarbon groups or are joined together so as to form a carbocyclic or heterocyclic ring, and R3 is a substituted or unsubstituted hydrocarbon group; which process comprises the ring-closing cyclization of a compound of the formula (II):

PURPOSE:To prevent an engine from a blowing-up and a halt by setting, when clutch engagement control is started, an engaging force which is indicated by engaging force control data and repeating the setting until the revolution speed of a clutch driven shaft rises over a certain value. CONSTITUTION:When clutch engagement control is started, a computer reads the engaging force control data from a t...

PURPOSE:To prevent a shock at shifting by releasing an automatic clutch if a signal, namely, an indication of the shifting is given during clutch engagement control for changing the clutch from a released position to a directly engaged position, or after said control and then performing the clutch engagement control after a completion of the shifting. CONSTITUTION:At shifting which requires releas...

PURPOSE:To simplify the resetting of a malfunction of an electronic controller by setting it, with a power supply thereof thrown into, to make a clutch engaging force practically zero when a shift lever stands in a neutral or a parking position. CONSTITUTION:If a driver during driving may feel an unusual run due to malfunction of an electronic controller and changes a shift lever into a neutral or...

PURPOSE:To decrease a delay of engagement of an automatic clutch by performing the energizing thereof for engagement in the step processes. CONSTITUTION:When engagement of a clutch is started, relatively high engagement energizing for driving a pressure disc of the clutch or a piston into a position where the clutch is ready to be engaged is performed for an extremely short interval, relatively lo...

PURPOSE:To reduce a shift shock by correcting, when a data group is changed over, data in a new group so as not to give an actually discontinuous linkage between a clutch engagement force in a preceeding group and another clutch engagement force in the new group. CONSTITUTION:A differential blank between the last or the eighth value in the preceeding data group and the head or the first data in a ...

A method for preheating the oxygen used in converters. Steam which is already available in the usual steel manufacturing plant, is used to preheat the oxygen. The steam may be generated from waste gas produced in an converter process. A heat exchanger which may be placed into an oxygen supply line, feeds into a line of the blast lance. This heat exchanger may be placed between the feed line to the...

L'INVENTION CONCERNE UN GENERATEUR DE VAPEUR A GAZ PERDU CONTENANT UN COURANT PRINCIPAL D'AGENT MOTEUR AMENE DANS UN EVAPORATEUR 22 PAR L'INTERMEDIAIRE D'UN DEGAZEUR 5, D'UNE POMPE DE CIRCULATION 10 ET D'UN ECONOMISEUR 12.

LE DEGAZEUR 5 EST CHAUFFE PAR DE LA CHALEUR DE L'AGENT MOTEUR NON DETENDU. L'AGENT MOTEUR UTILISE POUR LE CHAUFFAGE DU DEGAZEUR 5 EST UN COURANT PARTIEL PRELEVE ENTRE L...

1. Support for a radiation source (2A) of multiple orientation associated in operation with a radiology table (4) situated transversely to a horizontal axis y-y, comprising : - a radiation source (2A) equipped with movement means (15) and associated in operation with at least one detector (3) for said radiation, - first means permitting a first movement of said support (1) in a plane transverse to...