Abstract: In a road construction machine (1) for the treatment of road surfaces with a milling drum (3) height-adjustable with regard to the milling depth, with a leveling device (4) with at least one controller (6a, 6c) which receives set values for the milling depth and/or the slope of the milling drum (3), and with at least one exchangeable sensor (A, B, C) or with several switchable sensors for registering the current actual value of the milling depth and/or the slope of the milling drum (3) relative to a reference surface, where the controller (6a, 6c) effects a milling depth control and/or a slope control for the milling drum (3) conditional on pre-determined set values and the currently measured actual values of the at least one sensor (A, B, C) by returning an adjustment value for achieving or maintaining the set value during the milling operation, where the leveling device (4) is provided with an indication and setting device (2) for indicating and setting operating parameters for the at least one sensor (A, B

Abstract: A holster apparatus includes a taller outside and a shorter inside panel joined together to form a shallow bottom pocket. The holster apparatus is generally open to the inside. The outside of the holster apparatus substantially completely covers the handgun so that the holster apparatus and handgun may be carried in a user's pocket and give the general appearance of a wallet carried within the pocket. The handgun is not discernible to a viewer when the handgun and holster are carried in the user's pocket.

Abstract: An arc protection circuit is provided for a current-fed, parallel-resonant inverter ballast. The circuit includes a lamp current rate of change sensing circuit coupled with one or more lamps to detect a total lamp current; a ballast shutdown circuit to disable the ballast in response to a disturbance in the detected signal; a startup delay circuit, at least a portion of which defines a first time delay from a predetermined condition during which the ballast can not be disabled by the shutdown circuit; and an automatic restart circuit to enable restarting of the ballast, at least a portion of which defines a second time delay during which the ballast remains disabled, after which the ballast is restarted.

Abstract: An electronic ballast is provided for powering a discharge lamp and suppressing lamp flicker during startup transition. A power converter receives DC input power and converts it into an AC power output. A resonant circuit is coupled with the lamp and also between output terminals of the power converter. A controller controls the power converter with respect to particular modes of operation. The controller in a starting operation sets the output frequency of the power converter to a predetermined start frequency upon lamp startup to make the lamp begin discharging. The controller shifts from the starting operation to steady-state operation by setting the output frequency of the power converter at a predetermined steady-state frequency lower than the start frequency.

Abstract: An electronic ballast is provided for powering a high-pressure discharge lamp. A power supply circuit receives an AC input and provides a DC output in response to the AC input. An inverter circuit having a plurality of switching elements converts the DC output into an AC signal for the lamp. An LC resonant circuit is coupled between the inverter circuit and the lamp. A control circuit controls the switching operation of the switching elements, with the switching control associated with various operating modes. In an electrical breakdown mode the switching elements are controlled at a first switching frequency effective to provide a first resonant voltage and produce electrical breakdown of the lamp from an unlit state. In a high frequency preheat mode the switching elements after startup of the lamp are controlled at a second switching frequency lower than the first switching frequency to provide a current for preheating lamp electrodes.

Abstract: An adaptive advance control system for a construction machine senses the reaction forces applied by the ground surface to a milling drum, and in response to the sensed changes in those reaction forces controls the rate of lowering the milling drum into the ground surface. Early and rapid detection of such changes in reaction forces allow the control system to aid in preventing lurch forward events of the construction machine.

Abstract: An electronic ballast is capable of realizing high frequency lighting of a discharge lamp and switching between at least two lighting modes with different light outputs. The ballast includes a preheating circuit having a winding component connected in parallel with a main resonant circuit with a lamp current flowing therein for the discharge lamp. A constant preheating current for the lamp filaments is supplied from a secondary winding of the winding component during lighting of the discharge lamp and a path of a current flowing on a primary winding side of the winding component is switched by a switch according to the lighting mode.

Abstract: A nutritional formula which includes a lipid or fat; a protein source; about 5 to about 100 mg/100 kcal of a source of long chain polyunsaturated fatty acids which comprises docosahexanoic acid; about 0.1 to about 1 mg/100 kcal of a prebiotic composition, wherein the prebiotic composition comprises at least 20% of an oligosaccharide which comprises galacto-oligosaccharide; and about 0.015 to about 0.1 (pg/?g) ppm of TGF-?.

Abstract: A modular system for fixation of a spinous process includes at least one pair of blocks shaped so as to engage a particular segment of the spinous process and arranged on opposing sides of the spinous process. Each block has a surface facing the portion of the spinous process to be engaged, the surface having an array of sharp spikes to penetrate the spinous process when so engaged. Two rods arranged parallel to the spinous process are provided to connect the at least one pair of blocks and therefore stabilize multiple segments of the spinous process. Each block includes an aperture within a central portion of the block and shaped so as to slidably receive one of the rods. Set screws are provided so as to securely position the block along the length of the rod.

Abstract: A water heating apparatus uses a low range blower assembly and a high range blower assembly, each providing a variable flow of premixed fuel and air to a burner assembly. Appropriate choice of the operating ranges of the blower assemblies can provide a high turndown ratio approximately equal to the product of the turndown ratios of each of the individual blower assemblies. Turndown ratios as high as 25:1 are achievable.

Abstract: A method and circuit for controlling an HID lamp powered by an HID ballast during warm-up includes gradually increasing the lamp power as the lamp voltage increases. The method includes the steps of calculating a variable reference signal as a function of the lamp voltage and controlling the lamp operating conditions based on the variable reference signal and a feedback signal, to thereby keep the lamp current within a range around a substantially constant target value during warm-up.

Abstract: A tool for removing a chisel, in particular from a chisel holder, having a base element which receives an actuating member, wherein the actuating member has an expeller mandrel. The actuating member is adjustable along a displacement direction. In order to be able to perform the removal simply and rapidly, the actuating member of this invention is indirectly or directly coupled to a piston of a fluid-charged cylinder, or to an electric motor unit.

Abstract: Boat slip cover systems are provided for affixing to piers having a plurality of slips with closed and open ends, and first and second sides. Each boat slip cover includes a flexible canopy. Fixed supports for a first end of the canopy are disposed about the closed end of the slip, at least one extending upward from and perpendicular to the pier surface, and at least one extending upward from and angular to the pier surface. Rotating supports are disposed along each side of the slip and extend upward from the pier. Telescoping joints are disposed along each rotating support for their extension or retraction. A winch device is further provided for manual positioning. A convertible pier cover includes various retractable boat slip covers, valley portions extending between adjacent boat slip covers and forming an attachment on each side to an adjacent boat canopy, and a central aisle canopy.

Abstract: A circuit for preheating filaments in lamps powered by an electronic ballast includes an inverter tank circuit and a preheat tank circuit. The preheat tank circuit has a preheat capacitor connected in parallel with a primary winding of a filament preheat transformer. A cut-back capacitor is connected between the preheat tank circuit and circuit ground. The filament preheat transformer has secondary windings coupled to the first and second lamp terminals to provide a filament preheat voltage. The inverter operates at a preheat frequency during a lamp preheat mode and at a steady-state frequency during a lamp steady-state mode, the steady-state frequency being lower than the preheat frequency. The preheat tank circuit has a natural resonant frequency that is approximately the same as the preheat frequency so that when the ballast is operating in the steady state mode, the filament voltage is substantially lower than when the ballast is operating in the preheat mode.

Abstract: A computer-implemented system and method is provided herein for social commerce analytics and optimization. A hosted platform collects and stores online visitor traffic data from social media platforms and from commercial platforms linked to social media campaigns operating on the social media platforms. Algorithms are executed to establish baseline performance parameters for the commercial platforms based on the stored data, and visitors of the social media campaigns and commercial platforms are identified and scored based on predetermined scoring metrics. The scores are aggregated with respect to the social media campaigns and/or the commercial platforms, and actual performances based on the aggregated scores are compared with the established baseline performance parameters.

Abstract: A nutritional composition including a lipid or fat; a protein source; at least about 5 mg/100 kcal of a source of long chain polyunsaturated fatty acids which comprises docosahexanoic acid; and at least about 0.2 mg/100 kcal of a prebiotic composition, wherein the prebiotic composition comprises a plurality of oligosaccharides such that the overall fermentation rate profile of the prebiotic composition provides an increased population of beneficial bacteria in the human gut over an extended period of time.