Abstract: A spectacle lens has a body containing at least one diffraction structure, which is made to extend in the body on a body surface. The diffraction structure is formed by a spatial modulation of the refractive index n(x, y) dependent on the location in the body surface. The spatial modulation of the refractive index n(x, y) in the body is continuous. The continuity of the spatial modulation of the refractive index n(x, y) in the body typically exists over a contiguous area B of the body surface, for the diameter D of which, defined as the supremum of the metric distance d(x, y) between two arbitrary points x, y arranged in the area of the body surface, with D:=sup{d(x, y): x, y ? B}, the following applies: D?1 mm, preferably D?10 mm, particularly preferably D?20 mm.

Abstract: A kernel provides a mechanism allowing various applications (e.g. CRM, logistics, procurement, etc.) hosted on a plurality of different application servers, to share access to a common underlying system (e.g. database). An automated process for implementing a kernel change (e.g. for upgrade or replacement) may employ a “Stop-the-World” approach involving suspension of application server instances, coordinated by the start service of the last application server whose kernel is to be changed. As used herein, suspending refers to halting any processing prior to calling a central service (CS) as long as a CS instance is unavailable, and then to resuming processing once the CS instance becomes available. This suspension of relevant clients avoids errors from arising during the downtime of the CS instance. Once the application server instances are in a stopped state, the CS instance is restarted. Then, the application server instances are resumed, and their kernels are changed.

Abstract: A device for changing the control times of gas exchange valves in an internal combustion engine including a crankshaft driven component, and a camshaft component driven by a camshaft and affixed thereto is provided. The crankshaft driven component is connected to the camshaft component for power transmission via two pressure chambers. The pressure action causes a relative rotation or hydraulic adjustment of the camshaft component relative to the crankshaft driven component. In addition, the device has an impulse generator wheel fixed to the camshaft component, for ascertaining the position of the camshaft, and a spring attached to the two components for rotating the camshaft to a preferred position for starting the internal combustion engine. The spring is arranged outside the device in a hollow space located between the impulse generator wheel and the axial side facing the wheel, and is enclosed at least on two sides by the impulse-generator wheel.

Abstract: A device (1) for changing the control times of gas exchange valves in an internal combustion engine including a crankshaft driven component (4), and a camshaft component (5) driven by a camshaft (3) and fixed to the camshaft is provided. The crankshaft driven component (4) is connected to the camshaft component (5) for power transmission with the help of at least two pressure chambers formed within the device (1). The pressure action causes a relative rotation or a hydraulic adjustment of the camshaft component (5) relative to the crankshaft driven component (4). In addition, the device (1) has an impulse generator wheel (12) fixed to the camshaft component (5), for ascertaining the position of the camshaft (3), and a spring (13) attached to the two components, i.e. the camshaft component (5) and the crankshaft driven component (4), for rotating the camshaft (3) to a preferred position for starting the internal combustion engine.