72 results about "Steady state level" patented technology

The present invention generally teaches systems and methods for creating appliance signatures based upon whole house composite load profiles. Methods may includes steps such as identifying primitive elements including transients and absolute steady state levels; clustering the primitive elements along multiple dimensions to form impulses; combining impulses to form simple bundles; combining simple bundles with each other or impulses to form complex bundles; and determining specific appliance signatures that substantially match the complex bundles. Methods may also include steps such as determining transitions within the whole house composite load profile; determining household specific appliance state machines for each appliance in the household; and disaggregating the whole house composite load profile into individual appliance energy loads by assigning the determined transitions to the determined household specific appliance state machines.

An improved low-cost super-regenerative receiver includes sampling phase-locked loop. Phase sampling is controlled by the quench signal (264). In the preferred embodiment, logic state HIGH to logic state LOW transition of the quench signal (264) defines the timing for the event of sampling. While the quench signal (264) is in logic state HIGH, a quenched oscillator is being turned ON and the oscillation amplitude builds-up until a steady-state level is reached. When the oscillator is turned OFF, effective quality factor of an electronically tunable resonator (206) is reduced, by increasing losses in the circuit, thus to ensure aperiodic (non-oscillatory) decay. The resonator's charge—an energy stored on internal reactive components of the resonator (206), which existed at the instant of turning the oscillations OFF, is transferred during precisely defined period of time to the charge holding capacitor (404) of a charge transfer circuit (216). Charge is stored on the charge holding capacitor (404), which is also part of a loop filter, until the described here charge transfer cycle is repeated again. A frequency control signal (268) at the output of the loop filter sets the frequency of the oscillation for the duration of the succeeding oscillator ON time.

A method of operating an electric power generation system (2). In one embodiment, a combustion chamber receives a combination of pressurized air (14) flow output from a compressor (12) and fuel (20) for combustion therein. The system (2) is operated at a relatively high steady state level of power output and then power is turned down by extracting a portion (34) of the pressurized air (14) flow before entry into the combustor (16). The method may further include throttling of air (14) flowing through the compressor (12) with inlet guide vanes (15). Features of the reduction in power include maintaining a characteristic combustor (16) minimum flame temperature with a volumetric percentage of NOx or CO emissions not exceeding those corresponding to the relatively high steady state operation.

Methods and apparatus for managing thermal loads on a laser gain medium and for boosting the output power of a diode pumped laser are disclosed. The short-term average pumping power to the gain medium is increased, to provide a burst of pumping energy to the laser gain medium. A subsequent short-term reduction in the average pumping power then allows the gain medium to cool to a desired state steady level. The average pumping power is then increased to maintain this steady state level until the next burst is desired. For example, a pulse of current may be applied to a laser diode at a first current level I1 for a first time interval Δt1, where I1 exceeds a nominal current value Inom by an amount ΔI1. The current to the laser diode is reduced to a second current level I2 for a second time interval Δt2, where Inom exceeds I2 by an amount ΔI2. To balance the thermal load on the diode an integral of ΔI1 over the time Δt1 is approximately equal in magnitude to an integral of ΔI2 over the time Δt2. After applying the pulse of current at the first current level I1, and before or after reducing the current to the second level I2, the nominal current is applied to the laser diode for a third time interval Δt3.

The invention discloses a real-time on-line identification criterion method of an electric system node voltage steady state. After a PMU conducts sampling every time, a voltage stabilization discrimination result is computed in real time, where each discrimination comprises the following steps that 1), data collection and processing are conducted; 2) tracking calculation is conducted on Thevenin equivalent parameters; (3) according to a simple power network obtained through the present Thevenin equivalent parameters, a differential state equation of a node voltage dynamic trajectory is computed and described; (4) a voltage steady state on-line identification criterion of a node to be analyzed is obtained. The real-time on-line identification criterion method of the electric system node voltage steady state achieves voltage steady state on-line identification of the node to be analyzed is obtained by means of PMU measurement data.

This disclosure describes systems, methods, and apparatuses for extinguishing electrical arcs in a plasma processing chamber. Once an arc is detected, the steady state voltage provided to the plasma processing chamber can be reduced, and the current being provided to the chamber decays below a steady state value as the arc is extinguished. When the current falls to or below a current threshold, the voltage can be ramped back up bringing the voltage and current back to steady state values. This technique enables power to return to a steady state level faster than traditional arc mitigation techniques.

The present invention provides methods of isolating of leader peptides capable of directing export of heterologous proteins from the bacterial cytoplasm. The methods rely on the screening of libraries of putative leader peptides or of leader peptide mutants for sequences that allow rapid export and thus can rescue a short-lived reporter protein from degradation in the cytoplasm. The mutant leader peptides identified herein are shown to confer significantly higher steady state levels of export not only for short-lived reporter protein but also for other stable, long-lived proteins. These leader peptides can be used to direct or enhance protein secretion. The present invention further discloses methods for the export of cytoplasmically folded protein via the Tat pathway. Proteins having disulfide bonds are first folded within the cytoplasm in suitable oxidizing mutant strains. Such cytoplasmically pre-folded proteins containing disulfide bonds are then exported via the Tat pathway.

The present invention concerns methods of quantifying nucleic acids using a bioluminescence regenerative cycle (BRC). In BRC, steady state levels of bioluminescence result from processes that produce pyrophosphate. Pyrophosphate reacts with APS in the presence of ATP sulfurylase to produce ATP. The ATP reacts with luciferin in a luciferase-catalyzed reaction, producing light and regenerating pyrophosphate. The pyrophosphate is recycled to produce ATP and the regenerative cycle continues. Because the kinetic properties of ATP sulfurylase are much faster than luciferase, a steady state results wherein concentrations of ATP and pyrophosphate and the rate of light production remain relatively constant. Photons are counted over a time interval to determine the number of target molecules present in the initial sample. The BRC process has a controllable dynamic range up to seven orders of magnitude and is sensitive enough to detect a few thousand molecules of target nucleic acid.

This disclosure describes systems, methods and articles of a passive EMI filter integrated with an active boost converter for low-side line transients and / or an active clipper for high-side line transients. During steady-state operation, the active circuitry is disabled so the circuit functions as a passive EMI filter. Inductive and capacitive components used in the passive EMI filter during steady-state operation may serve a dual role and become part of a boost converter when input voltage is below a low-line steady-state and, in some variations, the inductive and capacitive components may become part of a transient clipper when the input voltage is above a high-line steady-state level. The transient clipper may be implemented as a linear pass element or as a switch-mode converter (e.g., buck converter).

Non-volatile storage elements are programmed using counter-transitioning waveform portions on neighboring word lines which reduce capacitive coupling to a selected word line. In one approach, the waveform portions extend between pass or isolation voltages of a boosting mode, which are applied during a programming pulse on the selected word line, and read voltages, which are applied when verify pulses are applied to the selected word line to verify whether the storage elements have been programmed to a desired programming state. The waveform portions reduce the net voltage change which is coupled to the selected word line. The selected word line can reach a reduced, steady state level sooner so that the verify pulses can be applied sooner, thus reducing the overall programming time.

Non-volatile storage elements are programmed using counter-transitioning waveform portions on neighboring word lines which reduce capacitive coupling to a selected word line. In one approach, the waveform portions extend between pass or isolation voltages of a boosting mode, which are applied during a programming pulse on the selected word line, and read voltages, which are applied when verify pulses are applied to the selected word line to verify whether the storage elements have been programmed to a desired programming state. The waveform portions reduce the net voltage change which is coupled to the selected word line. The selected word line can reach a reduced, steady state level sooner so that the verify pulses can be applied sooner, thus reducing the overall programming time.

A method for reducing bit errors in an analog to digital converter having an array of comparators. The outputs of first and second comparators are received as in inputs to an Exclusive OR gate. The first and second comparators are separated in the array by a third comparator. The output of the Exclusive OR gate is used to determine if the third comparator is in a metastable condition. If the third comparator is in a metastable condition, the bias current of the latch circuit of the third comparator is increased to increase the rate at which the third comparator transitions to a steady state.

A supply voltage detection circuit determines when the voltage for any one of the power supply signals received by an integrated circuit device is below its steady state level, as may occur during a hot socket condition when the device is inserted in or removed from a powered-on system. A first detection circuit determines when the first supply voltage level is below its steady state level, and a second detection circuit determines when the second supply voltage level is below its steady state level. A logic circuit provides a detected condition signal that disables current flow through an input / output terminal associated with the supply voltage detection circuit. The circuit is able to rapidly detect hot socket conditions for a wide range of power supply signal levels, including low supply signal levels, while limiting leakage current effects.

A method system and components for outer loop power control which compensates for changing channel conditions. A target metric, preferably target signal-to-interference ratio (SIR), is adjusted with differing step up and step down levels to converge on a relatively low steady state level of step up and step down target metric adjustments. The initial target SIR remains fixed during an inner loop settling state, followed by incremental target SIR adjustments during a transient state, and smaller incremental target SIR adjustments in a steady state. Step sizes of the adjustments are preferably based on the target block error rate (BLER) and the number of errors detected within predetermined time intervals.

The method for modeling a dosing regimen for a medicament includes providing a system having at least two biocompartments. The method determines steady state levels in each of the biocompartments. After that, the method provides for modifying values to calculate an amount of at least one protein in one of the biocompartments to which the protein is being transported. Next, the method calculates and integrates a weighted value of the protein to find a weighted area under the curve. Then, the method calculates and integrates a non-drug value of the protein to find a non-drug area under the curve. Finally, the method evaluates one or more dosing regimens by comparing the weighted area under the curve and the non-drug area under the curve of the protein to determine a net effect of the drug over the time period.

A valve actuator control monitors engine speed, engine valve timing, engine valve lift dwell duration and engine valve seating velocity and varies the timing of the engine valve event by adjusting the lift dwell duration of the engine valve while keeping time invariant opening and closing profiles.

The invention discloses a steady state and dynamic component ratio-adjustable total pressure distortion generating device and method. The device comprises a steady-state total pressure distortion generator and a dynamic sate total pressure distortion generator which are sequentially installed in the inlet pipeline of an aerodynamic stability experiment along the flowing direction of airflow; the steady state total pressure distortion generator comprises a first bracket and a wire mesh, wherein the wire mesh is detachably mounted on the bracket; and the dynamic sate total pressure distortion generator comprises a second bracket, loudspeakers, and a junction box; a plurality of loudspeakers are adopted and are fixed on the second bracket; and the wires of the loudspeakers are led out to thejunction box. The steady state and dynamic component ratio-adjustable total pressure distortion generating device and method of the present invention are capable of generating single steady state or dynamic state total pressure distortion, and are also capable of generating steady state and dynamic state combined total pressure distortion; and the ratio of steady state components to dynamic statecomponents is adjustable.

The invention discloses a brain-controlled input method based on steady-state visual evoked potential and motor imagination. In order to overcome the problem of singleness and limitation of the function realization of the existing control method, the method comprises the following steps: 1) collecting EEG signals; (1) generating EEG signals; (2) EEG signal acquisition; 2) on-line EEG signal processing; 3) control that virtual keyboard to realize the intelligent typing function: the virtual keyboard interface is divide into: (1) a display interface: a. A character display area, wherein the character display area is used for displaying the input character; (b) vocabulary association area: that vocabulary association area can be use for users to quickly select character-related vocabulary andcan be selected whether to open or not; (2) Visual evoked input interface: All the 13 flashing keys in the visual evoked input interface can stimulate human brain to produce SSVEP potential. The movement of virtual keys is controlled by left and right hand movement imagination, and the selection of virtual keys is controlled by stimulating cerebral cortex to produce SSVEP signal by fixing virtualkeys.

The invention discloses a transient state event and steady state event monitoring method during an electric energy classification metering process. The transient state event and steady state event monitoring method is suitable for being used for a non-intrusive load electric energy monitoring system, and is used to monitor a starting point of a transient state event and a starting point of a steady state event, and is used to solve problems of a classification metering system such as identification precision, calculation speed, and management efficiency. Data acquisition equipment and a virtual device are used to design a platform, and a voltage signal and a current signal of a user side are acquired, and then a power value is calculated to form a power sequence. The quantification and the median filtering preprocessing of the acquired data are carried out to reduce influences of spike noises and isolated noise points on the measurement of the starting point of the transient state event and the starting point of the steady state event. The starting point of the transient state event is acquired by adopting a transient state event starting point calculation method, and the starting point of the steady state event is acquired by adopting a steady state event starting point calculation method, and the operation state of the load is determined. The transient state event and steady state event monitoring method has advantages of high precision, easy realization, and applicability in fields such as high-level measurement system of intelligent power grid and electric energy demand side management.

The invention provides a rotor dynamic balancing measuring method based on steady state incentive and a device thereof. The method consists of the following steps: with regard to every rectification side, under the state of power off, using a vibration exciter with the same frequency and size to carry on sinusoidal excitation and cosine excitation respectively along the first normal direction and the second normal direction of the rectification sides of the rotors, and then obtaining the vibration vectors of every rectification side; according to the size of the exciting force and the rotor radius, calculating the influence coefficient of the fixed frequency relative to the revolving speed; measuring the original vibration vectors of the rectification sides under the state when the power is on and the rotor has risen to the setting speed; establishing an equation through the influence coefficient, and after solving the equation, obtaining the balance weight and the phase position of all the rectification sides. According to this rotor dynamic balancing measuring method based on steady state incentive, the cost for measuring the rotor dynamic balancing can be lowered.

Systems, methods, and non-transitory computer readable medium are described for monitoring participant attentiveness within events and for group assortments. In some embodiments, communications received from an online participant of an event may be monitored. Based on the monitored communications, a steady state level may be determined. Changes within the monitored communications from the steady state level may be detected and then stored within an event participation log.

An Off Chip Driver (OCD) having a high, a low and a high impedance (Hi-Z) state. The OCD includes an up-level pre-drive, a down-level pre-drive and a driver. The driver mirrors current in the up-level pre-drive and down-level pre-drive. Both pre-drive circuits have an unbalanced input-dependant delay to quickly turn off / on the on and off driver devices and, after a delay, reduce the drive on the turned on device to a steady state level. The delay may have a fixed length set by an inverter chain or may be dependent upon output voltage.

A method and a device for gradually controlling the illuminating light intensity of light-emitting diodes by modulating the width of current pulses of defined duty cycle, using a DC-to-DC voltage converter and a control circuit for switching the supply current of the light-emitting diodes. Prior to switching the power supply of the diodes the DC-to-DC converter is initiated (A), so as to generate voltage pulses of defined duty cycle; the steady state of each pulse is determined (B), so as to generate a voltage pulse (CP) calibrated to a voltage level substantially corresponding to the steady-state level; and then the light-emitting diodes are powered (D) by applying each calibrated pulse to the light-emitting diodes by means of the switchable control circuit.

A relationship between cancer and ribonucleic acid (RNA) regulation is described by determining intracellular levels of niRN A regulators. Generally, mRNA levels are decreased in cancer cells that may be a reflection of either reduced mRNA expression and / or increased mRNA degradation. miRNAs are identified that hybridize to an mRNA that are suspected to mediate intracellular mRNA steady state levels. Alternatively, ribonucleic acid binding protein (RBP) levels may also mediate intracellular mRNA steady state levels. In particular, this invention demonstrates an effective clinical management strategy for uterine cell cancers may be implemented by taking advantage of an exemplary relationship between P2X7 mRNA and miRNAs including, but not limited to, miR-186 and / or miR-150.

Apparatus and methods for simulating a steady state condition for an unknown variable in a system are provided. One apparatus includes a processor and memory configured to store a model of the system, and first and second predictions modules. The model is configured to receive a plurality of fixed inputs representing known variables for the model, the first prediction module is configured to generate an open loop prediction for the unknown variable based on the fixed inputs, and the second prediction module is configured to generate a closed loop prediction for the unknown variable based on the open loop prediction. A method includes the steps of receiving a plurality of fixed inputs in the system model, generating an open loop prediction for the unknown variable based on the plurality of fixed inputs, and generating a closed loop prediction for the unknown variable based on the open loop prediction.

An embodiment of the invention provides a method and device for automatically determining a steady state of a truck scale, and the device is characterized by comprising the following parts of a position detecting module configured to monitor position data of a target vehicle on the truck scale; a weighing module configured to weigh the target vehicle on the truck scale to obtain weighing data; a PLC module configured to receive position data, generate a position stabilization determination signal, receive the weighing data, and generate a weight stability determination signal; and a metering system configured to determine whether the target vehicle has reached a steady state according to the position stabilization determination signal and the weight stability determination signal, generatea weighing condition qualification signal when reaching the steady state to prompt the user to enter the metering flow, and generate a weighing condition abnormal signal when not reaching the steadystate to prompt the user to adjust the state of the vehicle until the target vehicle reaches the steady state. The invention solves the problem that the measurement of the current truck scale takes time and manpower, and the accuracy of the measurement data cannot be guaranteed.