Abstract: Systems and methods are described for authentication of tunneled connections.

Abstract: The present invention relates to compounds of the formula and pharmaceutically acceptable salts and solvates thereof, to processes for the preparation of, intermediates used in the preparation of, and compositions containing such compounds and the uses of such compounds for the treatment of pain.

Abstract: Systems and methods are described for a secure tunnel.

Abstract: The present invention relates to compounds of the formula (I): and pharmaceutically acceptable salts thereof, to processes for the preparation of, intermediates used in the preparation of, and compositions containing such compounds and the uses of such compounds for the treatment of pain.

Abstract: Compounds of formula I: inhibit gamma-secretase and hence find use in treatment or prevention of Alzheimer's disease.

Abstract: Compounds of Formula (I): and pharmaceutically acceptable salts, solvates (including hydrates) of said compounds and salts, or prodrugs of said compound, or pharmaceutically acceptable salts or solvates of said prodrugs, wherein the substituents are as herein defined, are useful in therapy, for example they may be useful for treating progesterone-mediated conditions such as endometriosis, uterine fibroids (leiomyomata), menorrhagia, adenomyosis, primary and secondary dysmenorrhoea (including symptoms of dyspareunia, dyschexia and chronic pelvic pain), or chronic pelvic pain syndrome.

Abstract: A step-up/step-down switching regulator control method for a regulator having an inductor with first and second leads, a first switch for controllably coupling the first lead to a source of power, a first device between the first lead and a circuit ground, a second switch for controllably coupling the second lead to the circuit ground, and a second device between the second lead and a regulator, the method comprising operating the switches in a sequence of phases when the source of power has a voltage exceeding the regulator output and in the same sequence of phases when the source of power has a voltage less than the regulator output, the phases being phase 1 with the first and second switches closed, phase 2 with the first switch closed and the second switch open, and phase 3 with both switches open. The first and second devices may be switches or diodes. Various embodiments are disclosed.

Abstract: A mandrel is utilized to support a roll of material. The mandrel includes a retaining element, which can be placed on an inner circumference of a roll of material, and at least one carrier element which transmits a torque between the mandrel and the material roll. The carrier element can be engaged with the roll of material in a non-positive manner.

Abstract: A vehicle, such as a snowmobile, includes an engine with one or more air intakes for receiving air into the engine and an airbox for directing air into the air intakes. The airbox slides to facilitate installation and removal of the airbox from the engine compartment, which thus economizes time and cost both for vehicle assembly and maintenance. The sliding airbox also eliminates the need for a gap between the fuel tank and the airbox, allowing the fuel tank to be moved forward, thus improving mass centralization of the vehicle. The sliding airbox has a rectangular slot which slides onto a rectangular plate on an intake adapter. The intake adapter has a flexible tubular connection for each cylinder of the engine which are secured to each air intake with a hose clamp. The air intake usually includes an air metering device such as a carburetor or throttle body.

Abstract: A motor vehicle has an inclinometer to determine the steepness of the slope upon which the vehicle stands, brakes and a driver brake pedal for generating a braking effort in the brakes. The brakes are also controlled by a brake hydraulic control unit and an electronic control unit. The brake hydraulic control unit is arranged to control the release of the braking effort generated to stop the vehicle on a slope by the brake pedal at a release rate which varies as a function of the steepness of the slope determined by the inclinometer following operation of the brake pedal to release the brakes. The vehicle thus achieves controlled descent of a hill after a stationary position. Such a brake control system is particularly advantageous to a motor vehicle having a hill descent mode.

Abstract: A diesel powered vehicle is provided with an SCR system which uses an external reducing reagent to convert NOx emissions in a manner which accounts for the effects of NOx transient emissions on the reducing catalyst. Actual NOx emissions produced by the engine are filtered using a variable NOx time constant in turn correlated to the reductant/NOx storage capacity of the reducing catalyst at its current temperature to account for changes in the SCR system attributed to NOx transient emissions. Catalyst temperature is filtered using a variable catalyst time constant corresponding to current space velocity of the exhaust gas to account for changes in the catalyst temperature attributed to NOx transient emissions. The reductant is metered on the basis of the filtered, corrected NOx concentration applied at a NSR ratio based, in turn, on the filtered, corrected reducing catalyst temperature.

Abstract: A vehicle, such as a snowmobile, includes an engine with one or more air intakes for receiving air into the engine and an airbox for directing air into the air intakes. The airbox slides to facilitate installation and removal of the airbox from the engine compartment, which thus economizes time and cost both for vehicle assembly and maintenance. The sliding airbox also eliminates the need for a gap between the fuel tank and the airbox, allowing the fuel tank to be moved forward, thus improving mass centralization of the vehicle. The sliding airbox has a rectangular slot which slides onto a rectangular plate on an intake adapter. The intake adapter has a flexible tubular connection for each cylinder of the engine which are secured to each air intake with a hose clamp. The air intake usually includes an air metering device such as a carburetor or throttle body.

Abstract: A system and method for processing data through a network firewall is presented. A more secure computer system initiates connections to one or more less secure computer systems. The more secure computer system and less secure computer system are separated by a firewall. The more secure computer system queries each less secure computer system periodically to see if there is event data or requests that the more secure computer system should respond to. The less secure computer systems store event data and requests from clients in a storage location until queried by the more secure computer system. When queried, the less secure computer system sends the event data or request information to the more secure computer system through the firewall. The more secure computer system either sends a response to the less secure computer system or sends the event data to an event console for a system administrator to analyze.

Abstract: An automatic carburetor (20) enrichment system that controls the air-fuel mixture during cold start of an engine (10) having a carburetor including a fuel bowl (22) and an induction passage (23), includes a sensor (50) that provides a signal indicative of an engine temperature at engine start, a fuel line (30) connected between the fuel bowl (22) and the induction passage, a solenoid valve (40) disposed in the fuel line, and a controller (10) that receives the signal and sets a duty cycle of the solenoid valve associated with the engine temperature to increase the air-fuel ratio of the air-fuel mixture at engine start.

Abstract: A diesel powered vehicle is provided with an SCR system which uses an external reducing reagent to convert NOx emissions in a manner which accounts for the effects of NOx transient emissions on the reducing catalyst. Actual NOx emissions produced by the engine are filtered using a variable NOx time constant in turn correlated to the reductant/NOx storage capacity of the reducing catalyst at its current temperature to account for changes in the SCR system attributed to NOx transient emissions. Catalyst temperature is filtered using a variable catalyst time, constant corresponding to current space velocity of the exhaust gas to account for changes in the catalyst temperature attributed to NOx transient emissions. The reductant is metered on the basis of the filtered, corrected NOx concentration applied at a NSR ratio based, in turn, on the filtered, corrected reducing catalyst temperature.

Abstract: A diesel powered vehicle is provided with an SCR system which uses an external reducing reagent to convert NOx emissions in a manner which accounts for the effects of NOx transient emissions on the reducing catalyst. Actual NOx emissions produced by the engine are filtered using a variable NOx time constant in turn correlated to the reductant/NOx storage capacity of the reducing catalyst at its current temperature to account for changes in the SCR system attributed to NOx transient emissions. Catalyst temperature is filtered using a variable catalyst time constant corresponding to current space velocity of the exhaust gas to account for changes in the catalyst temperature attributed to NOx transient emissions. The reductant is metered on the basis of the filtered, corrected NOx concentration applied at a NSR ratio based, in turn, on the filtered, corrected reducing catalyst temperature.

Abstract: A diesel powered vehicle is provided with an SCR system which uses an external reducing reagent to convert NOx emissions in a manner which accounts for the effects of NOx transient emissions on the reducing catalyst. Actual NOx emissions produced by the engine are filtered using a variable NOx time constant in turn correlated to the reductant/NOx storage capacity of the reducing catalyst at its current temperature to account for changes in the SCR system attributed to NOx transient emissions. Catalyst temperature is filtered using a variable catalyst time constant corresponding to current space velocity of the exhaust gas to account for changes in the catalyst temperature attributed to NOx transient emissions. The reductant is metered on the basis of the filtered, corrected NOx concentration applied at a NSR ratio based, in turn, on the filtered, corrected reducing catalyst temperature.

Abstract: A system and method for processing data through a network firewall is presented. A more secure computer system initiates connections to one or more less secure computer systems. The more secure computer system and less secure computer system are separated by a firewall. The more secure computer system queries each less secure computer system periodically to see if there is event data or requests that the more secure computer system should respond to. The less secure computer systems store event data and requests from clients in a storage location until queried by the more secure computer system. When queried, the less secure computer system sends the event data or request information to the more secure computer system through the firewall. The more secure computer system either sends a response to the less secure computer system or sends the event data to an event console for a system administrator to analyze.

Abstract: Current source methods and apparatus for light emitting diodes providing constant diode current and illumination in the presence of voltage and process variations. The method comprises providing a predetermined current through a first transistor, and mirroring the current through the first transistor to at least one additional transistor while holding the voltage across the first transistor to a predetermined value, wherein each additional transistor is coupled in series with a light emitting diode. An exemplary circuit, as well as various illustrative applications are disclosed.

Abstract: A diesel powered vehicle is provided with an SCR system which uses an external reducing reagent to convert NOx emissions in a manner which accounts for the effects of NOx transient emissions on the reducing catalyst. Actual NOx emissions produced by the engine are filtered using a variable NOx time constant in turn correlated to the reductant/NOx storage capacity of the reducing catalyst at its current temperature to account for changes in the SCR system attributed to NOx transient emissions. Catalyst temperature is filtered using a variable catalyst time constant corresponding to current space velocity of the exhaust gas to account for changes in the catalyst temperature attributed to NOx transient emissions. The reductant is metered on the basis of the filtered, corrected NOx concentration applied at a NSR ratio based, in turn, on the filtered, corrected reducing catalyst temperature.