Abstract: A system for controlling blade tip clearance in a turbine. The system includes a stator including a shroud having a plurality of shroud segments and a rotor including a blade rotatable within the shroud. An actuator assembly is positioned radially around the shroud and includes a plurality of actuators. A sensor senses a turbine parameter and generates a sensor signal representative of the turbine parameter. A modeling module generates a tip clearance prediction in response to turbine cycle parameters. A controller receives the sensor signal and the tip clearance prediction and generates at least one command signal. The actuators include at least one actuator receiving the command signal and adjusts a position of at least one of the shroud segments in response to the command signal.

Abstract: A method for increasing the measuring accuracy for a limited path is described, where a map of the actual geometric path that is stored in a memory is obtained in a “learning phase.” In addition, a method for better controlling a camshaft offset in a combustion engine is described.

Abstract: Disclosed are a method of estimating a Doppler frequency shift and a method of transmitting data using the same. The method of estimating the Doppler frequency shift includes the steps of calculating difference values of a received pilot signal between i-th slot and (i?1)-th slot, for i=1, 2, . . . , N; and estimating a Doppler frequency shift based on the difference values.

Abstract: Disclosed are a method and system for predicting future values of a target metric associated with a task executed on a computer system. The method includes the steps of, over a given period of time, measuring at least one defined metric, transforming that measurement into a value for a predictor source metric, and using the value for the predictor source metric to obtain a predicted future value for said target metric. The preferred embodiment of this invention provides a flexible performance multi-predictor to solve the problem of providing accurate future behavior predictions for adaptive reconfiguration systems. The multi-predictor makes predictions about future workload characteristic by periodically reading available hardware counters. Also disclosed is a method and system for periodically reconfiguring an adaptive computer system by rescheduling tasks based on future behavior predictions.

Abstract: An integral evaluation method for a complete numerical gauging of work pieces includes building an integral objective as a polynomial composed of two different objective groups and multiplying each group of the objectives with different free adjustable weighing parameters. The objective groups are Chebychev objectives group and a least-squares objectives group. The free adjustable weighing parameters include all prescribed connections between the elements with a tolerance requirements according to a drawing of the elements and a weighing of the elements.

Abstract: What is disclosed is a method for maintaining consistent color output across printers even when the inline sensors have differences in accuracy due to various technical and environmental factors. A spectrophotometer is used to measure the color quality of printed references. Adjustments are then iteratively made until reference charts of desired color quality are obtained. The printed reference allows one to achieve relatively high system performance by removing sensor inaccuracies. Using the printed reference measured by the inline sensor control systems of each machine are calibrated. At customer sites and at suitable intervals, a reference document can be read using the inline sensor on a reference machine and any differences from expected values can be calibrated out.

Abstract: Data values representing the (I2+Q2) values are converted to floating-point representations and a histogram of the floating-point numbers is generated. The count for each histogram bin in the histogram is stored in a memory. Each floating-point number acts as an address for a corresponding histogram bin in the memory. The accumulated counts in the histogram bins are then grouped into a desired number of CCDF bins, and the CCDF curve is derived from the histogram data. Grouping the histogram bins into the CCDF bins may include combining one or more histogram bins into a single CCDF bin. Linear interpolation is used to divide a count value in a histogram bin between two CCDF bins when the histogram bin does not align with a single CCDF bin.

Abstract: Fluid flow properties often dictate the performance of processing operations. The present invention relates to a system for evaluating properties of a fluid flowing in a pipe. A test cell (20) which includes two parallel surfaces (5, 6) which are positioned in the flow. One of the surfaces is moveable relative to the other, to a position in close proximity to the other, to create a stagnant flow region between the surfaces. The system further includes a test input device (10) to apply input motion to one of the surfaces, and a test output device (13) to measure output motions from the cell in response to input motions. Furthermore, the system includes a processing device (9) to calculate rheological parameters of the fluid from signals produced from the test input and test output device. There is also a process for evaluating properties of a flowing fluid.

Abstract: A method for autocalibrating a plurality of phase-delayed clock signal edges within a reference clock period includes measuring delay spacing between the plurality of clock signal edges, calculating programmed delay spacing, calculating ideal signal edges from the programmed delay spacing and adjusting the clock signal edges to match the respective ideal signal edges. A plurality of calibrated clock signal edges is produced that are selectively available to a user.

Abstract: There is disclosed a method of selecting, in real time, a soil stabilizing protocol for clay-bearing soils occurring in construction sites. The method includes the steps of: obtaining soil conductivity data values at locations within a defined site without disturbing the surface of the soil; correlating the soil conductivity data values with corresponding estimates of soluble sulfate levels; recommending a calcium-based soil stabilizing protocol if the estimated level of soluble sulfates is less than a predetermined threshold; and performing a laboratory analysis of soil samples from selected portions of the defined site when the estimated soluble sulfate concentration equals or exceeds the predetermined threshold.

Abstract: A resolver detected position compensation system for a resolver is provided that can enhance a position detection precision by performing a further compensation on a compensated position that was obtained from a static error compensation. The position detection circuit outputs a compensated detected position signal in which a static error has been compensated. The differential circuit differentiates the compensated detected position signal to obtain a rotational speed of the resolver. Based on a signal representing the rotational speed output from the differential circuit, the phase data memory device and the peak value memory device send the variation in phase and the amplitude peak value, respectively, of the dynamic error signal to the multiplication device. The multiplication device calculates an estimated dynamic error and the subtraction circuit removes the estimated dynamic error from the compensated detected position signal.

Abstract: A method and apparatus for guiding an operator in the alignment of the wheels of an automotive vehicle which has been either modified from a original manufacturer configuration, or for which no previously established alignment settings are known. Initially, the operator identifies known information about the vehicle and selects a desired characteristic of the vehicle for which the vehicle alignment is to be optimized. A set of initial alignment settings are presented to the operator, based upon the selected characteristic for the vehicle, and the vehicle alignment is adjusted thereto. One or more subsequent measurements of the vehicle are acquired. Alignment adjustments to further improve the selected characteristic, identified in response to the vehicle measurements are presented to the operator. The process of alignment adjustment, measurement, and presented adjustments is repeated until an optimal alignment setting for the selected characteristic is reached.

Abstract: A storage battery includes a battery housing and a plurality of electrochemical cells in the battery housing electrically connected to terminals of the battery. A battery test module is mounted to the battery housing and electrically coupled to the terminals through Kelvin connections. A display or other output is configured to output battery condition information from the battery test module. Battery post extensions couple the battery test module to terminals of the battery.

Abstract: Techniques for fluid measurement include the ability to introduce a vibration to a container wall and to detect the vibration after the vibration has propagated at least partially around the container wall. Based on the detection of the vibration, the techniques also include the ability to determine a fluid state.

Abstract: A method for analyzing waviness of a surface. The method includes measuring a height of the surface, producing a set of data points indicative of a waviness profile, selecting a subset of the set of data points, calculating a waviness height of the subset, repeating the selecting, determining, and calculating steps for additional subsets until all members of the set of data points have been selected, and selecting a maximum waviness height value from the waviness heights calculated for each subset. The height of the surface may be measured over a distance longer than the length over which waviness assessment is required.

Abstract: Disclosed are new methods and systems for achieving calibration in a pipelined ADC system. The methods and systems may be used to provide continuous digital background calibration in a pipelined ADC. Component mismatch error from each DAC in the pipeline is tabulated to provide an integral nonlinearity profile, which is subtracted from the ADC transfer characteristic.

Abstract: A system and process for tracking an object state over time using particle filter sensor fusion and a plurality of logical sensor modules is presented. This new fusion framework combines both the bottom-up and top-down approaches to sensor fusion to probabilistically fuse multiple sensing modalities. At the lower level, individual vision and audio trackers can be designed to generate effective proposals for the fuser. At the higher level, the fuser performs reliable tracking by verifying hypotheses over multiple likelihood models from multiple cues. Different from the traditional fusion algorithms, the present framework is a closed-loop system where the fuser and trackers coordinate their tracking information. Furthermore, to handle non-stationary situations, the present framework evaluates the performance of the individual trackers and dynamically updates their object states.

Abstract: An acceleration sensor, installed together with an angular velocity sensor in the same casing, detects the acceleration induced by the external vibration. Its detection signal Vs is supplied to first and second band-pass filters to extract a driving system resonance frequency fd of the angular velocity sensor as well as a difference frequency ?f between the driving system frequency component and a sensing system resonance frequency. The extracted signals Vs1 and Vs2 of respective frequency components are supplied to first and second window comparators. When each frequency component deviates from a predetermined range, a diagnostic signal Vd notifying the abnormal condition of the angular velocity sensor is produced.

Abstract: Method and apparatus for measuring accuracies of fixed-point computations are described herein. In one embodiment, the exemplary process includes identifying an operation involving a plurality of input values, invoking an object associated with the identified operation, performing the operation via the invoked object, and automatically generating, as a part of the operation via the object, accuracy information associated with the operation for each of the plurality of input values. Other methods and apparatuses are also described.

Abstract: There is disclosed a method of estimating moisture content in a material involving directing a first frequency (f1) signal and a second frequency (f2) signal through a material, determining a first absolute phase shift (?1) of the frequency signal and a second absolute phase shift (?2) of the second frequency signal, transforming ?1 to a first corrected absolute phase shift (?1c) and ?2 to a second corrected absolute phase shift (?2c) in accordance with an expected relationship between ?1 and ?2, and estimating moisture content from ?1c and ?2c.