Abstract: A method for producing steel in which iron ore is reduced with hydrogen and the resulting intermediate product of reduced iron ore is subjected to further metallurgical processing; the hydrogen is produced through electrolysis of water; the electrical energy required for the electrolysis is regenerative energy from hydroelectric, wind, and/or photovoltaic sources and the hydrogen and/or the intermediate product is produced regardless of demand, whenever enough regeneratively produced electrical energy is available; and unneeded intermediate product is stored until there is demand or it is used so that the regenerative energy that is stored therein is also stored; and using a calculation model to calculate a required discharge rate in a reduction shaft to achieve a desired metallization grade of the steel by tracing batches of the iron ore in the reduction shaft, and using the calculation model to calculate the amount of carbon-containing gas or hydrogen-containing gas to add to the hydrogen for the reduction.

Abstract: A method for temporarily storing energy in which iron ore is reduced with hydrogen and the resulting intermediate product of reduced iron ore and possibly accompanying substances is subjected to further metallurgical processing; the hydrogen is produced through electrolysis of water; the electrical energy required for the electrolysis is regenerative energy from hydroelectric and/or wind and/or photovoltaic sources or other regenerative forms of energy and the hydrogen and/or the intermediate product is produced regardless of the current demand, whenever enough regeneratively produced electrical energy is available; and unneeded intermediate product is stored until there is demand or it is used so that the regenerative energy that is stored therein is also stored and a method for storing discontinuously produced energy in which the discontinuously produced energy, when it is present or after its production, is conveyed into a process in which a storable intermediate product is produced from a source material

Abstract: A method for producing steel in which iron ore is reduced with hydrogen and the resulting intermediate product of reduced iron ore and possibly accompanying substances is subjected to further metallurgical processing; the hydrogen is produced through electrolysis of water; the electrical energy required for the electrolysis is regenerative energy from hydroelectric and/or wind and/or photovoltaic sources or other regenerative forms of energy and the hydrogen and/or the intermediate product is produced regardless of the current demand, whenever enough regeneratively produced electrical energy is available; and unneeded intermediate product is stored until there is demand or it is used so that the regenerative energy that is stored therein is also stored and a method for storing discontinuously produced energy in which the discontinuously produced energy, when it is present or after its production, is conveyed into a process in which a storable intermediate product is produced from a source material and the sto

Abstract: A method of treating premenstrual dysphoric disorders comprising administering to a patient in need of such treatment daily from day 1 to day 24 3 mg of drospirenone and 0.02 mg of ethinylestradiol.

Abstract: A transdermal drug delivery device comprising an adhesive matrix, an effective amount of drospirenone, and an oligomeric adjuvant selected from an oligolactic acid, oligolactic acid derivatives, or mixtures thereof. Also, a transdermal drug delivery device comprising a backing film and an adhesive matrix which comprises an effective amount of drospirenone, a solubilizing agent, and a permeation enhancer selected from the group consisting of alkyl lactates, carboxylic acids, alkyl esters of fatty acids, and mixtures thereof.

Abstract: A method of treating premenstrual dysphoric disorders comprising administering to a patient in need of such treatment daily from day 1 to day 24 3 mg of drospirenone and 0.02 mg of ethinylestradiol.

Abstract: A method of treating premenstrual dysphoric disorders comprising administering to a patient in need of such treatment daily from day 1 to day 24 3 mg of drospirenone and 0.02 mg of ethinylestradiol.

Abstract: The invention relates to a process and a centrifuge for removing solids located on a cylindrical casing wall (3) of a rotating centrifuge, in particular solids precipitated in the centrifuge from a liquid-solid mixture, to a solids exit opening (6) by sweeping the entire casing inner wall (9) in the direction of the solids exit opening (6). In order to reduce clogging, it is proposed according to the invention that in each case the casing inner wall (9) is swept in strips up to the solids exit opening (6), during one sweep up to the solids exit opening (6) only a part of the casing inner wall (9) is swept, and after a certain time the entire casing inner wall (9) is swept by strips (11) swept sequentially in time.