Ammonia is synthesized from a hydrogen and nitrogen mixture containing small concentrations of inert contaminants such as argon, methane, etc. Gases dissolved in the ammonia product normally vented and discharged from the synthesis system are returned to the synthesis loop without removal of the inert contaminants. By so doing, despite the fact that the concentration of inert gases in the synthesis loop is increased, and the concentration of ammonia in the gas mixture leaving the synthesis conve...

This invention provides a process for producing germplasm of plant species exhibiting enhanced response to anther culture. The anther culture procedure itself is used as a selection criterion for genes favoring in vitro androgenesis. After subjecting anthers to standard anther culture regeneration procedures, the regenerated plants are intermated and self-pollinated to generate valuable genetic variability for improved culture response. The transfer of increased anther culturability to other sel...

The invention relates to a method based on fluorescence, especially time-resolved fluorescence for quantitative assay of a bioaffinity reaction involving bioaffinity components. The method comprises the labelling of one or several of the bioaffinity components participating in the reaction with a lanthanide chelate, forming of a lanthanide chelate for a fluorescence measurement after the reaction, and measuring the fluorescence of the chelate. The lanthanide (Eu, Tb, Sm or Dy) is brought to a st...

Method for improving the brightness of limestone utilizing a flocculating agent and a bleaching agent where the pH of the slurry is between about 7 and 9.

The present invention relates to a veterinary medicine containing multhiomycin as an effective ingredient and provides a medicine for promoting growth of animals including birds, fishes and shellfishes and preventing various kinds of diseases of animals or fishes and shellfishes which contains multhiomycin as an essential component.

Blood pressure is increased in a patient having a condition which effects rapid firing of neurons in the sympathetic nervous system and low blood pressure by administering tyrosine to the patient. The tyrosine composition can be administered alone or concomitantly with a drug which increases noradrenergic neurotransmission in the sympathetic nervous system.

Soybean crop yield can be increased by the foliar application of small amounts of trialkyl-2,4-dichlorobenzylammonium chlorides during certain stages of growth. Application to the Northern indeterminate varieties is at a rate of about 0.25-0.5 lb./acre during the 5-8 trifoliate leaf stage and application to the Southern determinate varieties is at a rate of about 0.5-0.75 lb./acre during the 10-11 trifoliate leaf stage.

Contrast is increased when reproducing originals, by using a first correcting signal for continuous-tone areas in the original and a second correcting signal which affects only line elements (narrow lines) in it. To generate a picture signal and a surrounding-area signal, an opto-electronic scanning member having a picture-point aperture and a surrounding-area aperture is provided. The diameter of the picture-point aperture is approximately equal to the width of the line elements in the original...

A conventional forced air furnace is provided with a source of outside air for use in combustion. The amount of outside air admitted to the furnace and the amount of heated air lost through the chimney are regulated by simultaneously operable dampers synchronized with the operation of the furnace. Alternate power circuits and an alarm system for the dampers are provided.

The levels of nutritionally essential metals in biological tissue are improved by administering corrective dosages of the metals found to be deficient, the metal being administered in the form of metal proteinates. General health of animals is improved by increasing the levels of metals in biological tissues through the administration of multiple metals in the form of metal proteinates.