244 results about "Stable status" patented technology

A level shift circuit includes an input stage and an output stage coupled to each other by two nodes. The input stage changes the voltages on the nodes according to an input signal, and the output stage determines an output signal according to the voltages on the two nodes. In a transition state, the input stage provides a large current to charge or discharge the first node or the second node so as to quickly change the voltage thereon. In a steady state, the input stage lowers the current so as to reduce power consumption.

A method of determining anomalous operation of a system includes: capturing a stream of data representing sensed (or determined) operating parameters of the system over a range of operating states, with a stability indicator representing whether the system was operating in a stable state when the operating parameters were sensed; determining statistical properties of the stream of data, including an amplitude-dependent parameter and a variance thereof over time parameter for an operating regime representing stable operation; determining a statistical norm for the statistical properties that distinguish between normal operation and anomalous operation of the system; responsive to detecting that normal and anomalous operation of the system can no longer be reliably distinguished, determining new statistical properties to distinguish between normal and anomalous system operation; and outputting a signal based on whether a concurrent stream of data representing sensed operating parameters of the system represent anomalous operation of the system.

A disk array controller reliably improves performance in RAID configurations without the need for a battery backup. Write completion interrupts are queued until a write cache flush has been performed and are then sent to a host system. States of ranges of disk addresses (activity bins) are stored in nonvolatile storage elements associated with the ranges. The states allow rebuild times to be reduced after power failures and drive failures. A range is in a Changing state if at least one of the addresses is the target of a write operation that has been initiated but not completed. The range is in a Stable state if no addresses are the target of an uncompleted write operation. Two additional states are used to identify ranges of disk addresses that have been zeroed or never been written to. The additional states allow substantial reductions in RAID volume creation times.

The present invention discloses a voltage mode switching regulator with improved light load efficiency and mode transition characteristic, and a control circuit and a control method therefor. The switching regulator can switch between a pulse width modulation (PWM) mode and a pulse skipping mode. The control method for the switching regulator comprises: comparing a feedback signal relating to an output voltage with a reference signal, to generate an error amplification signal; generating a duty signal according to the error amplification signal and a ramp signal, to control the switching regulator; setting a threshold level of the error amplification signal and a threshold level of the pulse skipping mode according to the error amplification signal in a stable status; and when the error amplification signal is close or equal to the threshold level of the pulse skipping mode, generating a pulse skip signal to enter the pulse skipping mode.

A disk array controller reliably improves performance in RAID configurations without the need for a battery backup. Write completion interrupts are queued until a write cache flush has been performed and are then sent to a host system. States of ranges of disk addresses (activity bins) are stored in nonvolatile storage elements associated with the ranges. The states allow rebuild times to be reduced after power failures and drive failures. A range is in a Changing state if at least one of the addresses is the target of a write operation that has been initiated but not completed. The range is in a Stable state if no addresses are the target of an uncompleted write operation. Two additional states are used to identify ranges of disk addresses that have been zeroed or never been written to. The additional states allow substantial reductions in RAID volume creation times.

A load balancing method and a corresponding system are proposed. The load balancing method is used in environments (e.g., implementing a licensing management application) wherein each client is associated with a preferred server storing specific information for the client. Each client periodically detects a workload and a response time of all the servers. The client selects a subset of nearest servers (according to their response times). The server in that subset with the lowest workload is set as an eligible server. Whenever a ratio between the workload of the preferred server and the workload of the eligible server exceeds a predefined threshold value (e.g., 1.1), the client switches to the eligible server (transferring the corresponding specific information). The method of the invention exhibits a slow dynamic, and tends to reach a steady condition (wherein the specific information of the clients is not continuously moved across the system).

The invention discloses a resource allocation method and network-side equipment. The method comprises the following steps that: a network side judges whether the size of a data packet transmitted by a user side during a talkspurt period is in a stable status when determining that voiceover internet protocol (VoIP) service transmission enters the talkspurt period; the network side determines a lower limit value of the data packet transmitted by the user side during the talkspurt period according to the size of the data packet in the stable status after the size of the data packet is confirmed to be in the stable status; and the network side adopts a semi-continuous resource scheduling mode to allocate a semi-continuous resource to the user side when the following VoIP service is in the talkspurt period, wherein the semi-continuous resource is not greater than the determined lower limit value. By controlling the size of the semi-continuous resource, the report of unnecessary data volume in a buffer area is avoided, so the report expenditures on a buffer status report (BSR) and a scheduling request (SR) are effectively reduced, and the communication resources are saved.

A buffer device for a slide structure includes a buffer secured to the rear end of a fixed track to provide a buffer effect. The buffer provides a steady elastic force when in contact with a mobile track to maintain a steady and stable status. The buffer comprises a slot at the center portion to be sleeved onto a plate extending from the rear end of the fixed track to provide an elastic force when striking by the mobile track.

The invention discloses an emulsion of micron-sized docosahexenoic acid (DHA) and a preparation method thereof. The emulsion of micron-sized docosahexenoic acid (DHA) comprises: 50g to 150g of DHA, 10g to 50g of coating agent, 14g to 130g of oil phase emulsifier, 8g to 50g of aqueous phase emulsifier, 75g to 350g of thickening and stabilizing agent, 10g to 100g of dispersant and 0.5g to 20g of antioxidant; water is added for obtaining solution of 1000g. The emulsion of the invention is O / W type and mainly characterized in that the emulsifiers and the thickening and stabilizing agent are emulsified with the DHA and water according to certain proportions so as to obtain the emulsion with stable status and emulsified particle diameter less than 1 micron. The invention provides a prescription of a DHA emulsion capable of dispersing in cold water, provided with good stability and is stable against light, heat and oxygen and can be conveniently used in beverage, food and other relevant industries.

The invention discloses a method for checking the correctness of operating parameters of a generator set capable of adapting to the change of operating conditions, which belongs to the technical field of the operation monitoring of generator sets. The method comprises the following steps of: dividing the operating conditions of the generator set, determining the operating conditions through three parameters, namely set load, environmental temperature and heat productivity of coal as fired to make into an operating parameter condition value table, and upgrading the operating condition value table according to the actual operating conditions and operating parameter real-time values in the stable state of the generator set, so that each parameter operating condition value changes with the operating conditions; checking the correctness of the operating parameters by utilizing the operating condition value table, so that the process of checking the correctness of the operating parameters of the generator set has the adaptive capability on the operating conditions; and providing replacement values in high accuracy during parametric fault.

The invention discloses a water-soluble fertilizer containing chitin and humic acid and a production method thereof. The method is characterized by degrading chitin, a natural high polymer, and then mixing chitin with humic acid solution and nitrogen fertilizer to produce the water-soluble fertilizer containing chitin and humic acid. The produced water-soluble fertilizer contains 20-40g / l of chitin, 20-40g / l of nitrogen, 170-190g / l of humic acid and 1-5g / l of plant growth regulators. The method is simple, easy to operate and high in feasibility of implementation. The produced water-soluble fertilizer integrates the functions of nutrition supplement, bacteria immunity and virus immunity, improves soil conditions, prevents hardening, raises ground temperature, promotes prematurity, resists diseases and tolerates stress, resists continuous cropping and balances nutrition, and features stable status and lasting fertilizer efficiency.

The invention discloses a steady-state zero-sequence current increase-support apparatus and method. It has solved the shortcoming that the system fault electric amplitude of its own is small and difficult to detect, which occurs in the exsiting method of using the steady-state component in route selection and positioning. It has advantages such as transient amplification of the fault signal steady-state component after the single-phase ground fault occurs in the power network, which allows the route selection and positioning device based on the single-phase ground fault steady-state quantity, to accurate position, so at to achieve the purpose of positioning and route selection. Its structure is that: it includes a protected bus of the distribution system, and a steady-state zero-sequence current increase-support apparatus installed on the bus, which is connected to a voltage transformer, while the voltage transformer is connected to the bus; the increase-support apparatus is composed of a power capacitor group, on-off switches and a control device which monitors whether the single-phase ground fault occurs in the distribution system, while the power capacitor group help to increase the ground current, and the control device controls the on-off state of the power switch control group through the on-off switches.

The present invention provides a kind of high voltage direct current broadband domain corona current measurement system, including the sampling resistance sensor, the UHV local end measurement unit, the optical fiber transmission unit, the safe location measurement unit and the upper monitor; The sampling resistance sensor samples the corona current signal of the HVDC line, and converts the corona current signal to the voltage signal, the UHV local end measurement unit collects the voltage signal, and obtains the optical signal by photoelectric conversion, the optical signal transforms to the safe location measurement unit by the optical fiber transmission unit, the safe location measurement unit converts the optical signal to the voltage signal, the host computer performs processing, storing and displaying with the voltage signal. The present invention has a wide range of measuring frequency, strong ability of anti-electromagnetic interference and other advantages, also can running in long-term stable status under the condition of the UHV DC and all kinds of bad natures, this provides effective technological means for further research on the character of the UHVDC corona.

Techniques for generating a stable, force-resisting positive or negative representation of a shape. A state-changeable mixture comprises uniform, generally ordered, closely-spaced solid bodies and a liquid carrier medium of relatively similar density, with the liquid medium filling any voids or interstices between the bodies and excluding air or gas bubbles from the mixture. Within the mixture, the solid bodies can be caused to transition from a near-liquid or fluent condition of mobility to a stable, force-resisting condition through introduction and then extraction of a slight excess quantity of the carrier medium. To create mobility, this excess quantity or transition liquid is introduced to create a fluent condition by providing a slight clearance between the bodies which permits the gently-forced introduction of at least two simultaneous slip planes between ordered bulk masses of the bodies at any point in the mixture. Transition to the stable condition is caused by extraction of the transition liquid, removing the clearance between bodies and causing them to make stable, consolidated contact.

This invention discloses a data protecting method for embedded device. It consists of the following steps: divide the operation of data modification to stable status and temporary status; add a marker to each operation step and read in this marker when operation finish; the temporary status marker of the former operation was rewritten to be stable status marker when the last step in the multi step operation finish; startup, scan all the data, abandon unfinished action (temporary status operation marker) and come back to the former status. This invention could increase data repair speed.

The invention discloses an emulsion of micron-sized arachidonic acid (ARA) / docosahexenoic acid (DHA) and a preparation method thereof. The emulsion comprises 50g to 150g of ARA and DHA (the ratio of ARA to DHA is 2 to 4), 10g to 100g of oil phase emulsifier, 0.1g to 10g of antioxidant, 5g to 40g of aqueous phase emulsifier, 100g to 300g of thickening and stabilizing agent and 10g to 100g of dispersant; water is added until the solution is 1000g. The emulsion of the invention is O / W type and mainly characterized in that the emulsifiers and the thickening and stabilizing agent are emulsified with the ARA / DHA and water according to certain proportions so as to obtain the emulsion with stable status and emulsified particle diameter less than 1 micron. The invention aims at providing a prescription of an ARA / DHA emulsion which is reasonable in nutrition-allocated proportion and capable of dispersing in cold water, provided with good stability and is stable against light, heat and oxygen and can be conveniently used in beverage and other relevant industries.

An adjusting mechanism for adjusting arm rest of a chair includes an inner tube with an axial groove in an outside thereof and multiple positioning holes are located within the axial groove. An outer tube is mounted to the inner tube and an arm rest is connected to a top end of the outer tube. An engaging portion protrudes inward from an inside of the outer tube and movably engaged with the axial groove of the inner tube, so that the outer tube can be moved relative to the inner tube. An operation member is pivotably connected to the outer tube and includes a hook which extends through the outer tube and is engaged with one of the positioning holes. A guide plate is located above the hook and movably accommodated in a guide slot in the outer tube so that the operation member is operated in stable status.

The invention relates to the field of vehicle formation control, and particularly relates to an intelligent fleet longitudinal following control method based on fuzzy model predictive control, and aims to improve the flexibility of a model predictive control algorithm applied to a fleet longitudinal following control system and ensure that following vehicles in a fleet can quickly and stably realize longitudinal following. The method comprises the following steps of: establishing a fleet dynamics model, establishing an upper control system based on fuzzy model predictive control, and establishing a lower control system based on a vehicle inverse dynamics model. In the design of the upper control system, a fuzzy control strategy is introduced, an error weight coefficient in an objective function is adjusted according to the size of a spacing error and a speed error, the response time of the fleet to enter a stable state is accelerated, and the following stability of the vehicles is improved when the fleet is close to the stable state. The method can ensure that the upper control system can output more accurate and reasonable expected acceleration under the condition of meeting multiple constraints, and the driving stability and riding comfort of the fleet are improved.

Provided is a hearing device and method for compensating for a hearing loss. To compensate for the hearing loss, the hearing device and method utilize the gain during feedback in the forward path of a compressive system which, after having reached its steady state in “closed loop” operation, is equal to the feedback threshold gain. The steady state is reached soon after having applied a low input signal level to the hearing device, which input signal level is below 55 dB SPL (Sound Pressure Level), for example, and would result, for the open loop compressive system, in a larger gain than the feedback threshold gain of the closed loop system, respectively, would result in the maximum possible hearing device gain if maximum possible hearing device gain is below feedback threshold gain. The signal feedback gain is assessed in this steady state.

An embodiment of the invention provides an orientation detection method for a portable device. The method comprises acquiring an accelerometer data, determining whether the portable device is in a flat status, determining whether the portable device is in a stable status, and when the portable device is determined in both the flat status and the stable status, stopping acquiring the accelerometer data until receiving an enable signal.

A computer system and overclock controlling method and program thereof, which includes steps of providing an overclock work voltage to a CPU when overclock is requested, then the CPU adjusts its clock domain according to the overclock work voltage. The overclock work voltage is a sum of a normal work voltage and an additional external voltage, by which the CPU may enter an overclock mode (a frequency of a clock domain signal is higher than a standard frequency value). Eventually, when the frequency of the clock domain signal of the CPU is in a stable status during the overclock mode, the work voltage for the CPU is reduced and the CPU keeps working in the overclock mode.

The present invention uses the fact that the gain during feedback in the forward path of a compressive system, as it is the case for a hearing device used to compensate a hearing loss, after having reached its steady state in “closed loop” operation, is equal to the feedback threshold gain. The steady state is reached soon after having applied a low input signal level to the hearing device, which input signal level is below 55 dB SPL (Sound Pressure Level), for example, and would result, for the open loop compressive system, in a larger gain than the feedback threshold gain of the closed loop system, respectively, would result in the maximum possible hearing device gain if maximum possible hearing device gain is below feedback threshold gain. The signal feedback gain is assessed in this steady state.

The invention relates to a device for controlling floor bulging of a roadway, which comprises a roadway floor, rock bolts on two sides of the roadway, a tray for the rock bolts, a steel band (1) and a steel band (2) with teeth and holes, and a constant force clamp device. The steel band (1), the steel band (2) and the constant force clamp device form a floor beam together. When the floor bulges of the roadway due to various factors, the floor provides an upward acting force for the floor beam, and the steel band (1) and the steel band (2) with the teeth and holes are subjected to a tensile force under the fixation of the roadway side and the base angle rock bolts. Under the action of the constant force clamp device, friction force with certain size is produced between the steel band (1) and the steel band (2). When the tensile force received by the steel bands is larger than the maximum friction force between the steel band (1) and the steel band (2), two tooth sockets at the overlapped position are dislocated to improve the length of the floor beam; when the tensile force received by the steel bands is smaller than the maximum friction force between the steel band (1) and the steel band (2), the device is in a temporary stable status. For continuous floor bulging, the device repeats the process and the dislocation of the tooth sockets between the steel band (1) and the steel band (2) improves the length of the floor beam to provide certain supporting resistance for the floor. The device applies basically constant supporting resistance to the roadway floor all the time to reduce the floor bulging amount of the roadway and have the function of reducing the overall deformation amount of the roadway.

A bistable gripper for an aerial vehicle may include a base, a first finger, a second finger, a switching pad, a first elastic connector, and a second elastic connector. The base may include a first beam and a second beam. The first finger may be pivotably attached to the first beam at a first joint, and the second finger may be pivotably attached to the second beam at a second joint. The switching pad may be configured for moving relative to the base. The first elastic connector may be attached to the switching pad and the first finger, and the second elastic connector may be attached to the switching pad and the second finger. The bistable gripper may be configured for switching between a closed stable state and an open stable state.

The invention discloses a distributed driving vehicle steering stability control system and a control method thereof. A whole vehicle system outputs a mass center slip angle beta and a mass center slip angle speed yaw velocity omega z to a stability judgment module according to input vehicle motion state parameters; the vehicle longitudinal speed vx, the front wheel rotation angle delta f and the road adhesion coefficient mu are outputted to an ideal state module; the ideal state module calculates and outputs omega exp and beta exp to a beta omega joint controller; whether the vehicle is stable or not based on the yaw velocity threshold value and the stability index is judged; in an unstable state, the beta omega combined controller performs sliding mode control to output additional yawing moments delta M beta and delta M omega; a joint coefficient distribution module distributes a control proportion according to the stability index to obtain a weighted additional yawing moment delta M; the torque distribution module distributes the delta M to each wheel through a dynamic load distribution algorithm; stability of the vehicle body can be accurately judged under different working conditions, so the control proportion is reasonably distributed, and control efficiency of the controller is improved.