An irrigation system that combines porous and non-porous tubing in a unified system by means of pressure reducing flow control fittings that connect the lower pressure porous tubing to the higher pressure non-porous distribution tubing. Small holes in discs mounted inside the fittings lower the flow and pressure to the porous tube.

A light regulation system is provided wherein the light output of a fluorescent lamp(s) is regulated in accordance with the RMS value of the lamp arc current which is automatically adjusted to maintain a referenced ambient light level or arc current. The ballast and associated lamps of the system receive the full line voltage until the lamps are ignited and thereafter the current thereto is automatically limited by limiting the amplitude of the ballast current during the part of each AC voltage ...

This invention relates to a composition comprising a mixture of a N-heterocyclic amide, such as N-methylpyrrolidone, and a 2-haloethylsulfinamide having from 3 to 16 carbon atoms for the treatment of plants, including trees, shrubs, farm crops and ornamentals to achieve promotional and sustained hormonal ethylene plant growth regulatory effects; and the method of using said composition.

A growth regulation process involving certain phosphonic acid compounds having the general formula: ##STR1## The growth regulation process of the present invention relates mainly, though not entirely, to the inducement of an ethylene response or ethylene-type response in plants and part thereof including, but not limited to, stems, roots, leaves, flowers, buds, and harvested as well as unharvested fruit. The method of the present invention produces a wide variety of plant growth responses includ...

A composition for growth regulation of plants or for defoliating plants comprises in combination (a) at least one compound of the formula ##STR1## wherein R.sub.1 is hydrogen or alkyl of 1 to 3 carbon atoms and R.sub.2 is hydrogen or alkyl of 1 to 4 carbon atoms and R.sub.3 has the meaning defined in the specification and X is oxygen or sulfur and (b) at least one other plant growth regulating or defoliating agent which, in combination with the compound at (a) results in a synergistic effect in ...

A method and apparatus are disclosed for altering the exposure time of a master timer in a CRT light house to accommodate masks having different aperture sizes. For each expected aperture size, an exposure time modifier is pre-stored, the aperture size of a mask is sensed, and the modifier corresponding to the mask's aperture size is automatically selected. The selected modifier is used to alter the rate at which the master timer times out so as to provide an exposure interval appropriate for th...

Device for the regulation of a continuously variable transmission in motor vehicles, characterized in that it mainly consists of means for the supply of a hydraulic medium under pressure; control means for the regulation of a pressure; and a controller (13) formed of on the one hand a main valve (14) for the supply and discharge of the hydraulic medium to the regulating cylinder (8) of the continuously variable transmission (1), and on the other hand a control valve (15), whereby the valve bodie...

The addition of 5-androstene 3.beta.,17.beta.diol and/or 5-androstene 3.beta.,7.beta.,17.beta. triol to growth media increases proliferation of lymphocytes in culture. By methods of the invention it is possible to increase production of autogenous lymphocytes for administration to the patient.

An aspartic acid rich protein isolated from human urine, as well as proteins having substantial homology thereto and active portions of the foregoing are effective modulators of mineralization in mammals. These proteins and peptides are useful as therapeutic agents, such as in the treatment of kidney stone disease. Hybridoma cell lines capable of producing monoclonal antibodies to these proteins and peptides and monoclonal antibodies produced by these hybridomas are disclosed. These monoclonal a...

Flow regulating apparatus comprises a turbulent-flow valve with a fluid supply connected at the upstream side thereof. A fixed pressure bias is applied to the fluid upstream of the valve whereby the mass flow rate of fluid through the valve is directly proportional to the pressure differential across the apparatus when these variations are within a selected pressure range. Such flow regulation may be used in a system for introducing a metered amount of liquid fuel into an air stream to provide a...