30 results about "Stability indicating" patented technology

A system and method is disclosed for comparing biometric image data to a stored enrollment template that may comprise collecting a set of biometric image data for a biometric object image from a biometric object imaging sensor; storing the biometric object image data in a memory as an enrollment template for further comparison to find a match with subsequently imaged biometric object image data; collecting a subsequent set of biometric image data for a biometric object image from the biometric object imaging sensor; updating the enrollment template; determining if a limited enrollment window remains open; and repeating the collecting of a subsequent set of biometric data step if the enrollment window remains open. Determining if the enrollment window remains open may be by determining the existence of one of a stability indicator and an instability indicator.

Systems and methods for detecting phase-locked loop circuit lock. In particular, a lock detector configured to detect PLL stability for a user-defined period of time prior to asserting a PLL-lock-detected output. Stability may be indicated by a counter inserted into a PLL circuit and arranged between a phase-frequency detector and a charge pump. Because the counter value is acted upon by the phase-frequency detector, PLL lock is indicated by counter value stability. The digital counter value may be provided to a digital charge pump and a lock detector simultaneously. The lock detector includes registers and difference detectors to determine when the difference between counter values is below a user-defined tolerance. The lock detector may include a variable timer to avoid false indications of lock which may occur when counter values are sampled with the same frequency as a fluctuation frequency of the counter value.

A vehicle motion control apparatus is provided with an anti-skid control device and a steering angle adjusting device, which adjusts the steering angle of at least one of the front and rear wheels to cancel a yaw deviation between a desired yaw factor and an actual yaw factor, to be substantially zero. An incompatibility between the devices is determined on the basis of a state of the wheel adjusted by the steering angle adjusting device to cancel the yaw deviation. And, a predetermined parameter provided between a vehicle stability directive parameter and a brake directive parameter is set on the basis of the incompatibility. Then, the anti-skid control device controls the braking force applied to each wheel of the vehicle on the basis of the predetermined parameter. Consequently, the anti-skid control giving importance to the braking force can be performed, as long as the steering angle adjusting device is operative.

A physiological parameter measuring system includes a parameter sensing device attachable to a body of the subject. The sensing device detects at least one physiological parameter when activated, and a reading device monitors a temperature variation over time and determines whether the parameter has been so stabilized as to be reliably detected. A stability indication flag can be stored in the system so that subsequent monitoring of the parameter is instantly performed.

The invention provides a measuring method of mecobalamin tablet related substance. The measuring method comprises the steps of (1) preparing a test sample; (2) preparing reference substance; (3) measuring the content of the related substance by high performance liquid chromatography, wherein the chromatographic conditions are as follows: stationary phase is a chromatographic column taking octadecyl silane bonded silica gel as filler, mobile phase is mixed solution formed by acetonitrile and phosphate buffer solution, the detection wave length is 300-360nm, the sample amount is 20mu l, the column temperature is 30 DEG C, and the flow velocity is 0.5-1.5ml / min; gradient elution is carried out; and (4) calculating the content of all impurities in the test sample. The measuring method of the mecobalamin tablet related substance is high in universality, good in reproducibility, high in degree of separation and accurate in detection result; the methodology validation proves that the measuring method has a stable indicative function, and is capable of rapidly and accurately controlling the limit of all the impurities in mecobalamin tablets, so that the quality can be controlled; furthermore, the measuring method is low in cost, and has good economic benefit and popularization prospect.

The invention discloses a method for detecting devetiracetam (R-isomer) from levetiracetam injection, and adopts high performance liquid chromatography to carry out qualitative or / and quantitative detection of the R-isomer, The detection condition of liquid chromatography comprises: chromatographic column: cellulose-three (3,5-dichlorophenyl carbamate) silica gel column; Mobile phase: n-hexane, dehydrated alcohol; Wherein, n-hexane (vol.% ): absolute ethanol (vol.%)=90~70: 10~30; the mobile phase adopts isocratic elution. The method of the invention can effectively detect the levetiracetam in the levetiracetam injection, and has specificity and stability indicating ability. Moreover, the levetiracetam injection can be directly diluted and tested without pretreatment of samples, which is convenient and fast; the detection limit of the method of the invention reaches 0.003%, and the quantification limit reaches 0.005%, which is accurate and sensitive.

The invention discloses a method for detecting 4-(1-(2,5-dimethyl phenyl)ethyl)-1H-imidazole or / and a hydrochloride thereof from medetomidine or dexmedetomidine hydroch; HPLC (High Performance LiquidChromatography) method is used for qualitative or / and quantitative detection of the 4-(1-(2,5-dimethyl phenyl)ethyl)-1H-imidazole or / and the hydrochloride thereof, and detection conditions of LC (Liquid Chromatogram) include: chromatographic column: C18 chromatographic column, mobile phase includes an aqueous phase and an organic phase, wherein the aqueous phase is a phosphate buffer; the organicphase is a methanol or / and acetonitrile solution, and the organic phase is selected from methanol or / and acetonitrile; the mobile phase is eluted by isocratic elution method; the method of the invention can effectively detect 4-(1-(2,5-dimethyl phenyl)ethyl)-1H-imidazole or / and the hydrochloride thereof in the bulk pharmaceutical chemical, capable of indicating specificity and stability.

Provided are an image processing device and a display control method. The device comprises a recognition unit configured to recognize a real object in an image. The apparatus may further comprise a determination unit configured to determine a stability indication indicative of the stability of the recognition, and a display control unit configured to modify the display of the virtual object according to the stability indication. Wherein, determining the stability indication includes: comparing a current value of an aspect of the state quantity of the real object with at least one previous value of the aspect of the state quantity of the real object.

The present application discloses stability-indicating potency assays for influenza vaccines.

A method for determining stability of a wireless signal includes transmitting a plurality of transmitted testing signals periodically during a time interval, receiving the plurality of transmitted testing signals and identifying at least one received testing signal from the plurality of transmitted testing signals, and generating a signal stability indicator according to a time weighting of each received testing signal of the at least one received testing signal.

The invention provides a method for detecting related substances in piperacillin sodium and sulbactum sodium for injection. The method adopts an octadecyl silane bonded silica-gel chromatographic column to carry out gradient elution so as to rapidly and precisely complete the detection on related substances in piperacillin sodium and sulbactum sodium. In the obtained chromatogram, the main related substance (2S)-2-amino-3-methyl-3-sulfinobutyric acid and piperacillin penicilloic acid are well separated, piperacillin and sulbactum are also well separated from other related substances, and the separation degree is more than 1.5. The degradation researches and methodology on piperacillin sodium and sulbactum sodium show that the provided method has a stability indicating function, and thus the detection method can be used to control the limits of impurities in piperacillin sodium and sulbactum sodium, and can also be used to control the quality of piperacillin sodium and sulbactum sodium for injection. The method has the advantages of convenient operation and low cost, and has a good economic profit and promotion prospect.

The present invention relates to systems and methods for monitoring the stability of a hybrid powertrain. A system and method for monitoring stability of a hybrid powertrain system includes monitoring output response signals of the system and its subsystems to their inputs to identify system operating conditions. For example, for a hybrid powertrain system equipped with an electrically variable transmission (EVT), three signals are monitored. These are the two motor speeds representing the immediate subsystem response to its feedback control input and the EVT output speed representing the overall system response. A stability monitoring system includes: an average value determination module, which determines an average value signal of the signal; and an oscillation determination module, which determines the signal oscillation signal according to the instantaneous signal and the average value signal. The monitoring system also includes: a signal mean value crossing determination module for determining a signal crossing with its mean value signal; and an oscillation peak detection, storage and comparison module for determining a system instability indicator for causing the control system to take corrective action.