Abstract: A synchronous circuit comprises a functional circuitry and one or more validation circuits for validating synchronization of the functional circuitry. The functional and the validation circuits are clocked by a clock source. Each validation circuit comprises a clock distribution network, a test signal generator, a capture cell, a test signal path from the test signal generator to the capture cell, and a verification unit. The clock distribution network applies a launch clock signal at the test signal generator and a capture clock signal at the capture cell. The test signal generator produces a bi-level test signal. The test signal path transmits the test signal to the capture cell, which generates a proof sequence by sampling the test signal. The verification unit determines whether the proof sequence is identical to the test sequence. A method of designing a synchronous circuit and method of validating a synchronous circuit are also described.

Abstract: A method and a device for operating a waste heat utilization device for an internal combustion engine of a motor vehicle is disclosed. The waste heat utilization device contains a waste heat utilization circuit in which a working medium circulates. A conveyor, an evaporator, an expansion machine, and a condenser are disposed in the waste heat utilization circuit. A basic adjustment of the waste heat utilization circuit is provided, which as a function of a heat input into the working medium adjusts the mass flow rate at the conveyor and/or the ratio between high pressure and low pressure at the expansion machine. In addition, a pilot control is provided which recognizes a change of the operating point of the internal combustion engine and, when the operating point is changed, controls the condensation output of the condenser in accordance with a mass distribution of the working medium in the waste heat utilization circuit optimized to the new operating point.

Abstract: The Siemens process for deposition of polycrystalline silicon in the form of rods in a sealed reactor is improved by, after introduction of deposition gas has ceased, introducing a ventilating gas into the partially sealed reactor, withdrawing a gas stream from the reactor, and monitoring the components in the gas stream withdrawn until a desired concentration of one or more components is reached, and opening the reactor to remove the rods.

Abstract: A mobile computing device is described. The mobile computing device includes an enclosure. A humidity sensor senses humidity inside the enclosure and generates humidity data. An internal temperature sensor senses a temperature inside the enclosure and generates internal temperature data. An external temperature sensor senses a temperature exterior to the enclosure and generates external temperature data. An environmental control apparatus adjusts at least a temperature inside the enclosure of the mobile electronic device. A processor receives the humidity data, the internal temperature data, and the external temperature data and activates the environmental control apparatus in response to the humidity data, the internal temperature data, and the external temperature data to minimize condensation from forming inside the enclosure due to rapid changes in external ambient temperature.

Abstract: A method for operating an internal combustion engine involves using an injection valve to post-inject fuel into at least one cylinder of the internal combustion engine in order to help regenerate a particulate filter that is arranged in an exhaust system of the internal combustion engine, downstream of an oxidation catalyst. A closing moment of a discharge valve of a cylinder of the internal combustion engine is advanced when the temperature of the oxidation catalyst is in a first temperature range, and the post-injections are performed when the temperature of the oxidation catalyst is in a second temperature range, an upper limit of the first temperature range having a lower value that an upper limit of the second temperature range.

Abstract: The method according to the invention for sterilizing temperature-sensitive laundry items comprises the following steps: in the dry state, the laundry items are exposed to a process air flow having a defined temperature Tp and over a specified time period, then the laundry items heated in such a way are cooled to a target temperature Tptarget significantly lower than the temperature Tp, and then the cooled laundry items are washed in a washing process. The washing-drying unit according to the invention has a control device (CTRL) for carrying out said method.

Abstract: In a method for operating an internal combustion engine, in particular a spark-ignition engine, having inlet valves for controlling air flow to the internal combustion engine, which air flow is compressed by an exhaust gas turbocharger, wherein, during partial load operation, the inlet valves are closed at an early first point in time (t1) or at a late second point in time (t2), and during a transition from partial load operation to full load operation, for a predefined time, the inlet valves are closed at an early third point in time (t3) or at a late fourth point in time (t4) with the third point time (t3) occurring after the first point in time (t1) and the fourth point in time (t4) occurring before the second point in time (t2).

Abstract: A barrier onto the surface of a subterranean formation may be formed by pumping into a wellbore within a well hydrophobically modified polysaccharides. A pressure differential is created between the reservoir pressure and formation pressure within the well. The micellular hydrophobically modified polysaccharides self-align onto the face of the formation to form the barrier. Flow of fluids into the subterranean formation is thereby prohibited.

Abstract: A heater management system provides heat to heated zones of a mobile unit. For each heated zone, the heater management system includes a heater driver and a sensor. The heater driver is controlled by a unique control channel that is configured to heat the heated zone. The sensor senses environmental data external and internal to the heated zone. The heater management system includes a memory storing a heater driver prioritization database. The heater management system includes a heater control logic unit programmed to receive periodic reports from each of the sensors, prioritize the heated zones by utilizing the heater driver database as a function of the periodic reports, and determine power to be provided to each of the heater drivers based on the prioritizing operation and a predetermined global power limitation.

Abstract: A mobile computing device is described. The mobile computing device includes an enclosure. A humidity sensor senses humidity inside the enclosure and generates humidity data. An internal temperature sensor senses a temperature inside the enclosure and generates internal temperature data. An external temperature sensor senses a temperature exterior to the enclosure and generates external temperature data. An environmental control apparatus adjusts at least a temperature inside the enclosure of the mobile electronic device. A processor receives the humidity data, the internal temperature data, and the external temperature data and activates the environmental control apparatus in response to the humidity data, the internal temperature data, and the external temperature data to minimize condensation from forming inside the enclosure due to rapid changes in external ambient temperature.

Abstract: In a first circuit for detecting clock glitches in a clock signal, a master counter is clocked by the clock signal and memorizes a master count. An incrementer advances the master count by one increment. A slave counter is clocked by the clock signal and memorizes a slave count. The slave count is retarded relative to the master count by at least a particular number of clock edges. A comparator determines whether the difference between the master count and the slave count is at least a value of the incrementer times the particular number of clock edges.

Abstract: In a waste heat utilization arrangement for an internal combustion engine of a motor vehicle including a waste heat utilization circuit in which a working medium is circulated, a pumping device for pressurizing the working medium, an evaporator for vaporizing the working medium by waste heat of the internal combustion engine, an expansion machine for expanding the working medium while extracting mechanical energy therefrom and a condenser for condensing the working medium in a resting state, the waste heat utilization circuit is in communication with a pressure store capable of maintaining a pressure for setting and ensuring a predetermined adjustable minimum pressure of the working medium in the waste heat utilization circuit.

Abstract: A process is provided for the making of estetrol starting from a 3-A-oxy-estra-1,3,5(10),15-tetraen-17-one, wherein A is an C1-C5 alkyl group, preferably a methyl group, or a C7-C12 benzylic group, preferably a benzyl group. This process is particularly suitable to industry.

Abstract: A compact five-speed transmission planetary hear train includes a first, second, third, and fourth planetary gear sets between an input and an output as well as first, second, and third brakes and first, second and third clutches. The first, second and third brakes and first, second and third clutches are selectively actuatable to provide five different forward speeds and four different reverse speeds between the input and the output.

Abstract: A working medium circuit that includes a conveyor unit, a heat exchanger, an expansion unit, and a condenser, includes a device for recovering energy from a waste heat flow of an internal combustion engine in a vehicle. A Clausius-Rankine cycle is carried out within the working medium circuit, and the expansion unit includes an electrical generator or is coupled thereto. The electrical generator is a gap generator and a working medium of the working medium circuit flows through the electrical generator.

Abstract: A valve for metering fluid having a valve assembly which meters the fluid, and a hydraulic coupler assigned to the valve assembly. The coupler has a housing cup having a cup bottom, cup wall and cup opening; a piston is guided inside the housing cup in axially displaceable manner and delimits a fluid-filled coupler gap in the direction of the cup bottom and delimits an annular gap in the direction of the cup wall; and a cap-shaped diaphragm having a cap bottom and cap shell, which covers the annular gap at the cup opening by the cap bottom and overlaps the cup wall of the housing cup by the cap shell, and is fixed in place at the piston and cup wall in fluid-tight manner.

Abstract: A method for operating a motor vehicle internal combustion engine with an exhaust system branch in which a wall-flow exhaust particle filter is arranged. An amount of ash and an amount of soot accumulated in the exhaust particle filter are continuously determined. An ash increase value characterizing an increase in the amount of ash is determined and if pre-set conditions are present, the operation of the internal combustion engine is changed over to a special operating mode for performing an ash detachment and transportation operation, in which operating variables of the internal combustion engine are set such that, on the exhaust entry side in the exhaust particle filter, a pre-settable minimum exhaust flow speed results at which detachment of ash attached to the channel walls of the exhaust particle filter and transportation of detached ash in the direction of the respective inlet channel end is made possible.

Abstract: A method and apparatus for autonomously switching off a domestic appliance after completion of a previously selected program is disclosed. The domestic appliance has a control device that executes programs controlling the domestic appliance and an operating unit. The domestic appliance is connected to electrical energy from a power source through circuit arrangement comprising a terminal connection and first and second switches. The first electrical switch is separate from the second switch and can be switched from an open state to a closed state in which the switch is electrically conductive to connect the control device to the electrical energy. The control device is designed to switch the second switch from an open state to a closed state in which the control device is connected to electrical energy through the second switch as soon as the first switch is switched to the closed switching state.

Abstract: A compact five-speed transmission planetary gear train includes a first, second, third, fourth and fifth planetary gear sets between an input and an output as well as first, second, third and fourth brakes and first and second clutches. The first, second, third and fourth brakes and first and second clutches are selectively actuatable to provide five different forward speeds and a plurality of different reverse speeds between the input and the output.