Abstract: A refrigerated display case comprising: a refrigerated display area; a door configured to close an opening to the refrigerated display area; an air outlet spaced apart from an air inlet; a duct fluidically coupling the air inlet to the air outlet and configured to direct air flow out of the air outlet across the display area and toward the air inlet forming an air curtain across the display area; and an airflow inhibiting apparatus comprising: a conduit having an inlet and a plurality of outlet apertures arranged around a perimeter of the opening; a fan configured to draw air into the conduit via the inlet and to discharge a jet of air from each of the plurality of outlet apertures, the plurality of outlet apertures angled to repel ambient air away from the display area when the door is opened preventing airflow into the display area.

Abstract: A flow control device for controlling an air curtain formed across a display area of a refrigerated display case, the flow control device comprising: a stabilizing beam comprising an elongate outer cover and a carrier; wherein the outer cover forms a continuous boundary which defines a cavity extending along the length of the outer cover; wherein the carrier is slidably received within the cavity along the length of the outer cover; wherein the carrier is provided with a light source and wherein at least a portion of the outer cover is transparent or translucent such that light emitted by the light source is emitted from the outer cover to provide illumination.

Abstract: Building management systems and methods are described herein which augment predicted weather data with an external model of a built environment to calculate wind infiltration into a specific building or wind conditions at a building site. The wind infiltration can be used to predict the performance characteristic of at least one energy consuming component installed in the building, whereas the wind conditions can be used to determine whether the calculated wind conditions exceed a safety threshold.

Abstract: A riser plate for a shelf of a refrigerated display case and kits of parts allows an angle between an outer guiding surface of a riser plate and an inner retaining surface to be adjusted.

Abstract: An unmanned aerial vehicle 2 comprising: a fuselage 4; and a wing 6 comprising a central wing section 12 pivotably mounted to the fuselage 4 and a pair of outer wing sections 14a, 14b pivotably mounted to the central wing section 12; wherein the wing 6 has a folded configuration in which the central wing section 12 and the outer wing sections 14a, 14b are stacked on top of one another and are aligned with a longitudinal axis of the fuselage 4; and a deployed configuration in which the central wing section 12 is substantially perpendicular to the fuselage 4 and the outer wing sections 14a, 14b extend from the central wing section 12 away from the fuselage 4.

Abstract: An open refrigerated display case comprising: a refrigerated display area comprising one or more shelves; an air outlet and an air inlet opening into the display area and spaced from one another; a duct fluidically coupling the air inlet to the air outlet, the duct being configured to direct air flow out of the air outlet across the display area and toward the air inlet to form an air curtain across the display area; wherein each of the one or more shelves are provided with an associated flow stabilizing device; wherein each flow stabilizing device comprises a pair of stabilizing beams which are spaced from one another so as to define an innermost stabilizing beam and an outermost stabilizing beam; wherein a first slot is formed between the innermost and the outermost stabilizing beams, the first slot extending transversely across the display area perpendicular to the direction of the air flow within the air curtain, the first slot having a stabilizing inlet, a stabilizing outlet and a stabilizing throat disp