Abstract: A lighting system is for providing photosynthetically stimulating artificial light to a specified target area where such artificial light is needed. The lighting system has at least one luminaire with a light source. The luminaire emits photosynthetically stimulating light at a narrow beam angle of less than and including 20° (FWHM). The lighting system has means for positioning the at least one luminaire at a distance of minimum 20 m from the specified target area measured in a light beam direction, and the luminaire is adapted to illuminate the specified target area with a minimum photosynthetic photon flux density of 140 ?mol/s/m2. A method is for improving the growth conditions for plants in need of light at a specified target area by exposing the plants to a photosynthetically artificial light from a light source.

Abstract: A lighting system is for providing photosynthetically stimulating artificial light to a specified target area where such artificial light is needed. The lighting system has at least one luminaire with a light source. The luminaire emits photosynthetically stimulating light at a narrow beam angle of less than and including 20° (FWHM). The lighting system has means for positioning the at least one luminaire at a distance of minimum 20 m from the specified target area measured in a light beam direction, and the luminaire is adapted to illuminate the specified target area with a minimum photosynthetic photon flux density of 140 ?mol/s/m2. A method is for improving the growth conditions for plants in need of light at a specified target area by exposing the plants to a photosynthetically artificial light from a light source.

Abstract: An account is given of a system for and a method of making the growth/thriving conditions for grass more favorable in connection with grass pitches, e.g. football pitches. A lighting unit having a rectangular peripheral shape and thin, disc-like form is dimensioned to correspond to the pitch that is to be lit artificially, and may comprise extra devices for additional functions that may improve the growth/thriving of the grass, such as watering/ventilation. The lighting unit (16) is arranged to be moveable in the vertical direction by means of a hoisting arrangement comprising masts (10) (or stand roofs), wires (20) and powered hoisting apparatuses.

Abstract: A system for and a method of making growth and thriving conditions more favourable for grass plants in grass pitches of the type used as football pitches and for other sports, are described. The system and the method are especially intended to be put into use for treatment of grass pitches that are put partly in the shade by high, covered stands (12, 18; 14, 20; 16, 22). Another criterion for requiring additional lighting etc. is seasons with short days. This system for making growth/thriving conditions distinguishes itself by comprising and moving at least one lighting unit (24), preferably also having other functions (water/air supply, ventilation, lawn clean-up and more). so as to be able to exhibit the characteristics of a mobile greenhouse/hothouse.

Abstract: A method for securing a cladding plate to a building substrate by means of an expandable material, such as a hydrophobic polyurethane foam, which is capable of expanding many times its original volume is disclosed. The hydrophobic polyurethane foam is introduced into a space between the cladding plate and the building substrate so as to create an adhesive bond between adjacent surfaces of the cladding plate and building substrate. The foam is introduced into the space either as a free flowing liquid dispensed into a retention basin created in the space or by means of a balloon from which it will expand freely upon fracturing of the balloon. The balloon is constructed so that it will break shortly after the material has turned into foam but before the material has lost its capability of adhering to the cladding plate and building substrate, and before the balloon pressure can overcome the retaining pressure delivered by the cladding plate and building substrate.

Abstract: A method of and means for erecting precast slabs in building construction wherein the slabs are supported on prefabricated temporary generally rectangular walkthrough self-stable shoring frame assembly. A generally U-shaped base member is assembled with a staff structure which may be in the form of an inverted U-shaped arrangement in which upstanding arms on the base member are telescopically adjustably connected with depending arm extensions of the staff member. Diagonal, adjustable struts may connect cooperating units of the shoring frame assembly. Combination slab lifting and shoring frame locating pin-like fingers are provided.