Abstract: A reflector antenna arrangement can transmit and receive both infrared (IR) and millimeter wave (RF) radiation. The arrangement includes a main reflector (1), a subreflector (2), an IR feed system (4), an RF feed system (3), a radome (5), and a bispectral window (6) arranged in an opening provided in a central area of the main reflector (1). The RF feed system is oriented so that the RF radiation path includes a double reflection from the subreflector and from the main reflector, while the IR feed system is arranged directly behind the bispectral window so that the IR beam path extends directly through the bispectral window without reflecting from the main reflector or the subreflector. The bispectral window has a high reflectance for the RF radiation and a high transmittance of the IR radiation.

Abstract: Test carrier for the analysis of fluids with a frame (2) consisting of at least two parts surrounding a test field opening (6) and with a test field disposed in the test field opening (6). In order to provide such a test carrier with frame with which it is possible to assemble the test field out of several test layers manufactured separately from one another, it is proposed that the test field be designed as a test layer package (7) with test layers (10, 11, 12) resting loosely on one another, the frame (2) comprise two shaped pieces of plastics material, one of which serves as base part (4) and comprises a seat (16) for accommodating the test layers (10, 11, 12), while the other serves as lid part (3) and comprises a bearing surface (17) resting on the topmost layer (10) of the test layer package (7).

Abstract: Test carrier for the analysis of fluids with a test field (7) held in a frame (2), in which the frame (2) comprises a top part (3) and a base part (4) and at least the top part (3) comprises a test field opening (6) through which a sample fluid can be applied to the surface (7a) of the test field. Simplified handling and improved analytical reliability are achieved by the fact that the base part (4) comprises a seat (16) for the test field (7) which is surrounded by positioning elements (15) which are higher than the test field (7). The test field opening (6) is greater than the test field (7), so that the rim (18) of the test field is visible. The top part (3) comprises pressure tongues resting on the surface (7a) of the test field (7) and projecting into the test field opening (7).

Abstract: 1-tert-Butoxy-.omega.-alkenes of the general formula ICH.sub.2 .dbd.CH--CH.sub.2).sub.n O--C(CH.sub.3).sub.3 (I)wherein n is an integer from 4 to 10, their preparation and their use for imparting fragrance properties to perfumes or to products to be perfumed, or for improving or modifying the fragrance properties of the said perfumes or products, and scent compositions containing these compounds.

Abstract: 4-methyl-4-phenyl-1-pentanals of the general formula I ##STR1## where R.sup.1 is hydrogen or C.sub.1 -C.sub.4 -alkyl and R.sup.2 is hydrogen or methyl, with the exception of 4-methyl-4-phenyl-1-pentanal, and the use of the methylphenylpentanals of the formula I for imparting fragrance properties to, or improving or modifying the fragrance properties of, perfumes and perfumed products, and the preparation of these compounds by hydroformylation of the corresponding 3-methyl-3-phenyl-1-butenes of the general formula II ##STR2## and, if required, subsequent reaction with formaldehyde and partial hydrogenation.

Abstract: A baling machine according to the invention has a frame having walls defining an elongated compaction chamber having a front end provided with a transversely open intake to which a stream of crop is fed substantially continuously. At least one compacting member is periodically displaced in the chamber between a front position forward of the intake and a back position rearward of the intake by an appropriate drive so as to rearwardly compact crop in the chamber. A plurality of pushers are each displaceable between an advanced position projecting into the chamber and only partially blocking the intake and a retracted position substantially out of the chamber by a linkage that advances the pushers into their advanced position only when the member is rearward of the intake and of the pushers. Thus advance of the pushers into the advanced position immediately after movement of the compacting member rearward past the pushers parts the stream of crop between the pushers and compacting member.