Abstract: The invention relates to a device (1), a method, and a kit for analysing liquid samples. The device (1) comprises a sample layer (111) having a plurality of liquid permeable test sites (112) separated by a liquid impermeable barrier region (113), and an inlet part (2) comprising a plurality of inlet channels (211), which lead to respective test sites (112) of the sample layer (111), such that a flow connection between said inlet channels (211) and said respective test sites (112) is established or can be established, wherein said inlet channels (211) comprise first openings (218) and second openings (219), wherein a second surface area defined by the positions of said second openings (219) is smaller than a first surface area defined by the positions of said first openings (218) The invention further relates to a method for functionalizing a sample layer (111).

Abstract: The invention relates to a device (1), a method, and a kit for analysing liquid samples. The device (1) comprises a sample layer (111) having a plurality of liquid permeable test sites (112) separated by a liquid impermeable barrier region (113), and an inlet part (2) comprising a plurality of inlet channels (211), which lead to respective test sites (112) of the sample layer (111), such that a flow connection between said inlet channels (211) and said respective test sites (112) is established or can be established, wherein said inlet channels (211) comprise first openings (218) and second openings (219), wherein a second surface area defined by the positions of said second openings (219) is smaller than a first surface area defined by the positions of said first openings (218) The invention further relates to a method for functionalizing a sample layer (111).

Abstract: The sleeper block unit (1) for railway track systems consists of a sleeper block (2) and of a sleeper shoe (3) that partly surrounds the sleeper block (2). The sleeper block (2) has a head portion (4) and a base portion (6), the head portion (4) extending beyond the base portion (6) in length and in width, thus forming a step (10). At the upper edge of the sleeper shoe (3), a surrounding, upwardly and outwardly extending sealing lip (14) that lies against the step (10) is arranged. As a result, during vertical movements of the sleeper block (2) in the sleeper shoe (3), the sealing lip (14) is deformed substantially vertically in the elastic range rather than rubbing against an outer wall of the sleeper block as in known sleeper block units. In this manner the sealing lip is subject to reduced wear so that the sealing effect is maintained for a longer period and the sleeper block unit (1) has a longer lifetime.

Abstract: In a section of a ballasted track that extends over a plurality of crossties, ballast is removed and crossties are removed. Crosstie blocks mounted in concrete slabs are inserted, lifted, and fastened to the rails. The rails are supported by temporary, vertically adjustable supports and adjusted. In an area that extends over a number of concrete slabs, infill concrete is filled in from the underground up to at least part of the height of the concrete slabs, and after the infill concrete has hardened, at least a part of each of the supports located between two respective concrete slabs is removed. The method allows the conversion to be carried out without changing the position of the rails. After the placement of the supports, the track is immediately operable again so that the relevant section need not remain closed until all method steps are completed.

Abstract: The sleeper block unit (1) for railway track systems consists of a sleeper block (2) and of a sleeper shoe (3) that partly surrounds the sleeper block (2). The sleeper block (2) has a head portion (4) and a base portion (6), the head portion (4) extending beyond the base portion (6) in length and in width, thus forming a step (10). At the upper edge of the sleeper shoe (3), a surrounding, upwardly and outwardly extending sealing lip (14) that lies against the step (10) is arranged. As a result, during vertical movements of the sleeper block (2) in the sleeper shoe (3), the sealing lip (14) is deformed substantially vertically in the elastic range rather than rubbing against an outer wall of the sleeper block as in known sleeper block units. In this manner the sealing lip is subject to reduced wear so that the sealing effect is maintained for a longer period and the sleeper block unit (1) has a longer lifetime.

Abstract: In a section of a ballasted track that extends over a plurality of crossties, ballast is removed and crossties are removed. Crosstie blocks mounted in concrete slabs are inserted, lifted, and fastened to the rails. The rails are supported by temporary, vertically adjustable supports and adjusted. In an area that extends over a number of concrete slabs, infill concrete is filled in from the underground up to at least part of the height of the concrete slabs, and after the infill concrete has hardened, at least a part of each of the supports located between two respective concrete slabs is removed. The method allows the conversion to be carried out without changing the position of the rails. After the placement of the supports, the track is immediately operable again so that the relevant section need not remain closed until all method steps are completed.