Abstract: A railway vehicle includes two axles with wheels at ends thereof, and a frame rotatably supporting the axles. A seat is carried on the frame adjacent to pedals which are coupled to at least one of the wheels, typically through one of the axles. A battery and electric motor are configured to also supply power. The electric motor is adjustable to deliver controllable amounts of electric power to drive the wheels, separate from or in addition to pedal power delivered to the wheels. A trailer accessory can be towed on the rails by the vehicle. A turntable is provided with rail segments thereon, rotatable relative to a base, and with ramps on at least one end of each rail segment alignable with left and right rails of the railway. Vehicles can roll up the ramps onto the rail segments and then pivot 180° for operation in a reverse direction.

Abstract: In some examples of selecting a target therapy delivery site for treating a patient condition, a relatively high frequency electrical stimulation signal is delivered to at least two areas within a first region (e.g., an anterior nucleus of the thalamus) of a brain of a patient, and changes in brain activity (e.g., as indicated by bioelectrical brain signals) within a second region (e.g., a hippocampus) of the brain of the patient in response to the delivered stimulation are determined. The target therapy delivery site, an electrode combination, or both, may be selected based on the changes in brain activity.

Abstract: Techniques are disclosed for delivering electrical stimulation therapy to a patient. In one example, a medical system delivers electrical stimulation therapy to a tissue of the patient via electrodes. The medical system determines a first change of a first sensed signal of the patient to movement by the patient and a second change of a second sensed signal of the patient to the movement by the patient. Based on the first change and the second change, the medical system selects one of the first sensed signal and the second sensed signal of the patient for controlling the electrical stimulation therapy. The medical system adjusts a level of at least one parameter of the electrical stimulation therapy based on the selected one of the first sensed signal and the second sensed signal.

Abstract: Systems, devices, and techniques are described for analyzing evoked compound action potentials (ECAP) signals to assess the effect of a delivered electrical stimulation signal. In one example, a system includes a stimulation generator configured to deliver a stimulation pulse to a patient, sensing circuitry configured to sense an evoked compound action potential (ECAP) signal evoked from the stimulation pulse, and processing circuitry. The processing circuitry may be configured to determine a maximum value of a derivative of the ECAP signal, determine a minimum value of the derivative of the ECAP signal, determine, based on the maximum value of the derivative and the minimum value of the derivative, a characteristic value of the ECAP signal, and determine, based on the characteristic value of the ECAP signal, at least one parameter value at least partially defining electrical stimulation therapy to be delivered to the patient.

Abstract: The present invention provides a Christmas tree stand that is self-watering and rotatable. The self-watering system, that rotates with the tree, mainly includes a water reservoir, a hose, a water tank that holds on to the lower end of the tree, and a valve mechanism that automatically keeps the water in the water tank at optimum level. A rotatable tank assembly is driven by an electric drive motor on a stationary support assembly. Electrical power is passed from the stationary support assembly to the rotatable tank assembly through a slipping-ring connector. In the preferred embodiment, a remote control is provided to supply power for rotation of the rotatable tank assembly, including the tree, and the power receptacle on the rotatable tank assembly for suitable electrical loads, e.g., decorative lights, separately.

Abstract: The present invention provides a Christmas tree stand that is self-watering and rotatable. The self-watering system, that rotates with the tree, mainly includes a water reservoir, a hose, a water tank that holds on to the lower end of the tree, and a valve mechanism that automatically keeps the water in the water tank at optimum level. A rotatable tank assembly is driven by an electric drive motor on a stationary support assembly. Electrical power is passed from the stationary support assembly to the rotatable tank assembly through a slipping-ring connector. In the preferred embodiment, a remote control is provided to supply power for rotation of the rotatable tank assembly, including the tree, and the power receptacle on the rotatable tank assembly for suitable electrical loads, e.g., decorative lights, separately.

Abstract: A system and method for generating instantaneous safety availability information relating to an instrumented function is described. In one embodiment, a time of a test performed on an instrumented function component of the instrumented function is received, and an elapsed time between the time of the test and a particular time is determined. And based upon the elapsed time, the instantaneous safety availability information for the instrumented function is calculated.

Abstract: A system and method for continuous online safety and reliability monitoring is disclosed. The method includes the steps of obtaining operating information about at least one of a plurality of instrumented function components, which are part of an instrumented function, and determining a probability of failure on demand for the instrumented function based on the operating information. In variations, instantaneous probability of failure on demand, online mean time to failure (MTTF), and online safety integrity level (SIL) are also calculated for an instrumented function. In other variations of the invention, alarms are reported to an operator based on the variance indicating the probability of failure on demand for the instrumented function is too high. In yet further variations, the system allows a user to predict probability of failure on demand values into the future based on hypothetical and/or future planned test times.

Abstract: A system and method for continuous online safety and reliability monitoring is disclosed. The method includes the steps of obtaining operating information about at least one of a plurality of instrumented function components, which are part of an instrumented function, and determining a probability of failure on demand for the instrumented function based on the operating information. In variations, operating information includes status information, which may be received from and/or provided to an asset management application. In some variations, instantaneous probability of failure on demand, online mean time to failure (MTTF), and online safety integrity level (SIL) are also calculated for an instrumented function. In yet further variations, the system allows a user to predict probability of failure on demand values into the future based on hypothetical and/or future planned test times.

Abstract: 1-{4-[2-(Cyclopropylmethoxy)-ethyl]-phenoxy}-3-isopropylamino-propan-2-ol and its pharmaceutically acceptable salts, in the form of a racemate or optical isomer, are useful as topical anti-glaucoma agents.