Abstract: A burner arrangement for a combustion chamber for combustion of fluid fuels has a main burner and pilot burner arranged centrally within the main burner for the ignition and/or stabilization of the combustion of the main burner. The main burner has central fuel feed arrangement arranged around the pilot burner, an annular air duct surrounding the central fuel feed arrangement for the supply of combustion air, first fuel nozzles for injection of substantially gaseous fuel into the annular air duct. The first fuel nozzles are fed from a first fuel distributor in the central fuel feed arrangement, and second fuel nozzles for the injection of a substantially liquid fuel into the annular air duct are fed from a second fuel distributor in the central fuel feed arrangement. Ducts are provided which branch off from at least one of the fuel distributors and issue into the pilot burner.

Abstract: A polyolefin composition, particularly fit for the production of extrusion blow molded articles, comprising (a) a propylene-ethylene copolymer having a content of units deriving from ethylene of 4.0% by weight or higher, and (b) a nucleating agent and having a crystallization temperature (Tc) higher than 117° C. can be obtained by copolymerizing propylene and ethylene in the presence of a catalyst system obtained by contacting a solid catalyst component comprising a magnesium halide, a titanium compound having at least a Ti-halogen bond and at least two electron donor compounds one of which being present in an amount from 40 to 90% by mol with respect to the total amount of donors and selected from succinates and the other selected from 1,3 diethers, an aluminum hydrocarbyl compound, and optionally an external electron donor compound.

Abstract: A ski boot sole for cooperating with a ski binding to releasably hold the sole in the binding, the sole having front and rear recesses with front and rear fitting plates. The front recess and the front fitting plate are engaged by the front sole holder rotatable about a longitudinal axis for releasably holding the front sole holder against displacement in the forward, sideways and vertical directions. The rear recess and rear fitting plate are engageable by the rear sole holder which is rotatable about a transverse axis. The rear sole holder butts against the portion of the fitting plate extending outside the border of the sole to secure the rear portion of the sole in the rearward, sideways and vertical directions.

Abstract: A ski boot sole for cooperating with a ski binding to releasably hold the sole in the binding, the sole having front and rear recesses with front and rear fitting plates. The front recess and the front fitting plate are engaged by the front sole holder rotatable about a longitudinal axis for releasably holding the front sole holder against displacement in the forward, sideways and vertical directions. The rear recess and rear fitting plate are engageable by the rear sole holder which is rotatable about a transverse axis. The rear sole holder butts against the portion of the fitting plate extending outside the border of the sole to secure the rear portion of the sole in the rearward, sideways and vertical directions.

Abstract: Disengageable ski binding having a carrying plate which is provided as a standing surface for a ski boot and is arranged on a ski-mounted base part such that it can be rotated about a vertical axis of the base part counter to an adjustable resistance of a first latching device, and having disengageable front and rear sole holders which are arranged on the carrying plate, it being the case that the rear sole holders can be disengaged counter to an adjustable resistance of a second latching arrangement, which is separate from the first latching device, and/or the front sole holders are locked within a predetermined angle-of-rotation region of the carrying plate, without affecting the resistance of the first latching device, and are unlocked outside the region of rotation.

Abstract: Disengageable ski binding having a carrying plate which is provided as a standing surface for a ski boot and is arranged on a ski-mounted base part such that it can be rotated about a vertical axis of the base part counter to an adjustable resistance of a first latching device, and having disengageable front and rear sole holders which are arranged on the carrying plate, it being the case that the rear sole holders can be disengaged counter to an adjustable resistance of a second latching arrangement, which is separate from the first latching device, and/or the front sole holders are locked within a predetermined angle-of-rotation region of the carrying plate, without affecting the resistance of the first latching device, and are unlocked outside the region of rotation.

Abstract: The invention relates to a method of introducing hydrogen into aqueous liquids without forming bubbles.In this case, the introduction of the gas takes place through a composite membrane with a non-porous coating on the liquid side. Preferred fields of use relate to the charging of hydrogen into biologically or catalytically operating processes for the removal of oxygen, nitrite and/or nitrate from water.

Abstract: A process for degerminating and treating aqueous liquids with gas having improved efficiency and an apparatus for simultaneously degerminating and gas treating liquids are described.