Ipsilon Belgium

The invention relates to a method for cleaning an air duct of a ventilation system, comprising the steps of placing a brush having a length L, measured along a longitudinal direction of the air duct, in the air duct having a height H, wherein the brush has a circular cross-section with a radius r that is at least 2.5% greater than one half of the height H, moving the brush through the air duct at a linear displacement speed V which, in m/s, is less than or equal to the length L of the brush in metres, divided by 1 second, wherein the brush rotates at a rotational speed R which, in revolutions per minute, is less than or equal to one half of the height H in mm, and removing the brush from the air duct. The invention also relates to a use of a brush for performing the method.

Example embodiments relate to a computer-implemented method for generating a real-time stream of AI-enhanced video frames on a graphics processing unit, GPU, cluster (211); wherein the GPU cluster comprises a processing unit (212) and a plurality of GPUs (220, 230, 240); and wherein the respective GPUs are configured to support one or more GPU-accelerated containers (221, 222, 231, 232, 233, 241) each running a generative AI-model asynchronously to enhance a video frame into an AI-enhanced video frame; the computer-implemented method comprising, by the processing unit (212), while receiving (218) a live video feed: assigning (202, 214, 215, 216) the respective video frames of the live video feed to available GPU-accelerated containers; outputting (204, 219) a next AI-enhanced video frame to the real-time stream at a specified frame rate, if (203) the next AI-enhanced video frame is available within a threshold interval from outputting the previous AI-enhanced video frame to the real-time stream; else, reducing (205) a performance score of the GPU-accelerated container tasked with enhancing a video frame into the next AI-enhanced video frame; and disabling (206) GPU-accelerated containers with a performance score lower than a minimum performance score defined by a minimum frame rate for the real-time stream.

A camouflage textile product comprises a textile base fabric being provided at at least one side with a camouflage color motif, said color motif comprises at least a first, a second and a third color, said three colors being mutually different and all being different from black and being different from white, the first, second respectively third color having a reflectance curve with reflectance values R1, R2, respectively R3 in function of wavelength in the range of 780nm to 2500nm wavelength, wherein in the wavelength range 780nm to 2500nm, R1<R2<R3, and for at least 90% of all wavelengths in the range of 2000nm to 2500nm, R 2 − R 1 x − R 2 − R 1 2000 + A 12 * X − 2000 ≤ 3 % R ; <img class="EMIRef" id="2d943fa5-b405-4ecc-8175-5d5d2c76f5a4-ia01" /> wherein and R 3 − R 2 x − R 3 − R 2 2000 + A 23 * X − 2000 ≤ 3 % R . <img class="EMIRef" id="2d943fa5-b405-4ecc-8175-5d5d2c76f5a4-ia02" />

A 2D camouflage net is provided, the 2D camouflage net comprising a warp knitted mesh fabric, said warp knitted mesh fabric comprises a plurality of stich pillars in warp direction of the fabric, and a plurality of electroconductive weft inlay yarns. Each stitch pillar comprises, consecutively and in warp direction, ∘ an intermeshed zone where a stich pillar is intermeshed with at least one adjacent stitch pillar and ∘ a stand-alone zone where the stitch pillar is free of intermeshing with any of the adjacent stich pillars. Each stitch pillar comprises at least one electroconductive yarn and at least one non-electroconductive yarn, only at least one non-electroconductive yarn provides the stitches in the stitch pillar; for at least some of the interlinked zones, one or more of the electroconductive weft inlay yarns are knitted in at the interlinked zone by one or more stitches of the stich pillars, the electroconductive weft inlay yarn being in direct contact with the electroconductive yarns of the two adjacent stich pillars in the interlinked zone.

The invention relates to a method for adjusting a balanced ventilation system, comprising entering for each air supply and air extract valve a desired airflow rate, measuring an airflow rate through each air supply and air extract valve, entering the measured airflow rates in a user interface, calculating a measured flow coefficient for each air duct with a characterized air supply or air extract valve and a measured flow coefficient for a combination of an air duct and a non-characterized air supply and air extract valve for each air duct with such an air supply or air extract valve, determining a flow coefficient for a common portion of a network of air supply valves and for a common portion of a network of air extract valves, calculating a desired flow coefficient for the characterized air supply and air extract valves and for the non-characterized air supply and air extract valves from a desired flow coefficient for the combination of the air duct with the air supply or air extract valve, and displaying in the user interface an adjustment instruction for at least one of the air supply and air extract valves.

A method to produce an insulating polymer panel (10), the method comprises the steps: - providing two sets of o an intermediate polymer panel (111, 121), comprising a base plate (101) on which upstanding walls(102) are provided, said walls defining a number of cells (103) with a void inner space (104) and an open top (105), the cells being distributed over the base plate according to a pattern (130) o at least one insulating polymer sheet (112, 122), comprising a number of blocks (201) equal to or less than the number of cells of the intermediate polymer panel, said blocks each have two identical and parallel bases and one mantle face between the two bases, for each cell a block is provided for which the bases match the open top of the cell, ,, o the blocks being interconnected such the blocks are positioned within the insulating polymer sheet according to the same pattern; - for both sets of an intermediate polymer panel and an insulating polymer sheet, inserting the insulating polymer sheets (112, 122), in the intermediate polymer panels (111, 121) such the blocks are sunken in the cells to provide two intermediate filled polymer panels (301, 302), - connecting the edges (106) of the walls (102) of the first of the intermediate filled polymer panels to the edges of the walls of the second of the intermediate filled polymer panels.

A polymer panel (10, 11, 12, 13, 14, 15) comprising a first outer wall (110); and a second outer wall (120) arranged substantially parallel to said first outer wall, wherein the first outer wall and the second outer wall define a hollow closed volume (130) between them; at least one closable opening (135) adapted to provide a liquid in said hollow closed volume from the outside of the panel, wherein the closable opening is liquid tight when closed; a plurality of inner walls (140) extending in a substantially perpendicular direction from the first outer wall to the second outer wall, wherein said inner walls divide the hollow volume in a plurality of cells (150, 151, 152); wherein each cell is in fluid connection with at least one adjacent cell via at least one opening (160) for passing liquids.

Example embodiments describe an optical network node (270) configured to communicate in a passive optical network, PON (100); wherein the optical network node is configured to receive a stream (210) of forward error correction, FEC, codewords (211) respectively comprising at least a portion of one or more frames (220); wherein the respective frames comprise a header (222, 228) and a payload (223, 229); and wherein the optical network node is configured to perform:- identifying (201) idle frames (221) within the respective FEC codewords (211) of the stream (210) of FEC codewords;- for FEC codewords (211) that comprise at least a portion of one or more idle frames (221) , replacing (202, 241) at least a portion of the idle payloads (223) of the idle frames with a predetermined idle pattern (242); and- thereafter, FEC decoding (203, 245) the stream of FEC codewords with the replaced idle payloads (244).

The invention leverages the connection migration capabilities of the QUIC protocol to delegate established connections to other hosts, allowing the original client device to enter power-saving modes. This approach aims to improve the energy efficiency of data uploads and downloads on mobile devices, such as smartphones, by a significant factor. The invention also opens new avenues for research in transport protocol design and energy-efficient networking.

The invention relates to a method of determining a roundtrip latency in a conference system, comprising the steps of generating a pulse in a conference unit of the conference system at a known start time, wherein the conference unit comprises a microphone and a loudspeaker, upstream transmitting an audio signal from the conference unit to a central unit of the conference system, wherein the audio signal comprises the pulse, and wherein the pulse is an in-band signal of the audio signal, processing the audio signal in the central unit, resulting in a processed signal, wherein the processed signal comprises a processed pulse, downstream transmitting the processed signal to the conference unit, determining in the conference unit an arrival time of the processed pulse in the processed signal, and calculating the roundtrip latency as a difference between the start time of the pulse and the arrival time of the processed pulse.