Abstract: A lamp includes a lamp vessel, an incandescent body arranged in the lamp vessel, and current supply conductors connected to the incandescent body. The incandescent body is configured to emit a radiation spectrum including a visible portion and an infrared portion. An outer envelope around the lamp vessel has a reflective film adapted to transmit a first part of the visible portion and a second part of the infrared portion, the second part being greater than the first part.

Abstract: A heating system includes a reflector having a concave section symmetrical with respect to an axis of symmetry. In addition, a first radiation system having at least a first radiation member is capable of emitting a first type of radiation and a second radiation system having at least a second radiation member is capable of emitting a second type of radiation. The second radiation system is positioned in a direction parallel to the axis of symmetry with respect to the first radiation system.

Abstract: The invention relates to a lamp comprising a lamp vessel (101), an incandescent body (102) arranged in the lamp vessel and current supply conductors (103) connected to the incandescent body. The incandescent body is intended to emit a radiation spectrum comprising a visible portion and an infrared portion. The lamp further comprises an outer envelope (104) around the lamp vessel. The outer envelope comprises a reflective film (111) adapted to transmit a first part of the visible portion and a second part of the infrared portion, the second part being greater than the first part.

Abstract: The invention relates to a heating system used, for example, in applications such as the drying of paint. This heating system comprises a reflector (201, 505) having a concave section symmetrical with respect to an axis of symmetry (208, 508). It comprises in addition a first radiation system having at least a first radiation member (202, 501) capable of emitting a first type of radiation and a second radiation system having at least a second radiation member (203, 502) capable of emitting a second type of radiation. The second radiation system is positioned in a direction parallel to said axis of symmetry with respect to the first radiation system.

Abstract: A process for the separation of the actinides and lanthanides present in the trivalent state in an acid aqueous solution, wherein the actinides present in such aqueous solution are extracted selectively in an organic solvent by bringing the solution into contact with an organic solvent comprising a first extracting agent formed by an organic bonding agent having an electron-donor nitrogen atom and a second extracting agent formed by an acid organosoluble organic compound able to exchange its H.sup.+ ions for metal ions or by metallic salt of such compound.Application to the nuclear industry, inter alia in the field of the treatment of aqueous effluents containing lanthanides and actinides, such an transuranic elements.