34 results about "Positive control" patented technology

The invention discloses a specific primer group, a kit and a method for detecting double photosynthetic bacteria, and relates to the technical field of microbiological detection. The specific primer group is designed based on a conserved region of a photosynthetic reaction center L subunit gene (pufL) of rhodopseudomonas and ectothiorhodospirillum, the conservative property is greater than or equal to 99%, the similarity rate is greater than or equal to 98.5%, specific amplification of target bacteria can be realized, and cross amplification interference is avoided. The matched kit comprises the primer group, 2 * SYBR Green qPCR Master Mix, a positive control component, a negative control component and the like, and the detection method realizes rapid and sensitive detection of the two photosynthetic bacteria by optimizing sample pretreatment, PCR amplification conditions and result interpretation standards. The detection specificity is high, the sensitivity is high (the lowest detection limit reaches 10 < 2 > cfu / mL level), the detection period is short (1-2 hours), the applicability is wide, the method can be used for detecting various samples such as river water, aquaculture water and microbial inoculum fermentation liquor, one set of primers can detect two target bacteria at the same time, the detection cost and the operation complexity are reduced, and the method is suitable for aquaculture environment monitoring and microbial inoculum application quality control.

The present disclosure relates to methods of characterizing a system comprising a chromatography column. The methods can comprise introducing a sample comprising a positive control and a negative control into a system comprising a chromatography column, wherein the positive control is a sensitive probe that interacts with the system and the negative control does not substantially interact with the system; detecting the positive control and the negative control after passing the sample through the chromatography column; and determining system suitability by comparing the amount of positive control detected to the negative control. In some embodiments, determining system suitability (e.g., sample inertness to the system) is accomplished by determining the ratio of positive control to negative control detected.

The invention discloses a control method of a ship propulsion device, the ship propulsion device and a ship, and relates to the technical field of ship propulsion. The ship propulsion device comprises a power output assembly used for ship propulsion; the manpower driving assembly is used for driving the power output assembly to rotate; the direction switching assembly is in transmission connection with the power output assembly and used for adjusting the power output direction of the power output assembly; the steering detection assembly is used for detecting the rotating direction of the manual driving assembly and outputting a forward control signal or a reverse control signal; the control method of the ship propulsion device comprises the steps that under the condition that a forward control signal is received, the direction switching assembly is controlled to drive the power output assembly to face the first direction; under the condition that the reverse control signal is received, the direction switching assembly is controlled to drive the power output assembly to face the second direction; the second direction is opposite to the first direction. The invention aims to improve the reversing stability of the ship and improve the reversing response speed of the ship at the same time.

The invention discloses a text data processing method and system based on mathematical logic and propositional logic. The method comprises the steps of firstly obtaining text data and endowing the text data with weights to generate bottom layer data; thirdly, converting the natural language statement into an operable rule system entry by utilizing a pre-constructed mathematical logic and propositional logic framework, and generating a basic value; a logic item set, a positive control item and a negative control item which are input by a user are introduced into bottom layer data, and weight balancing processing is carried out. And finally, according to the matching degree of the items after weight balancing and the basic values of the items, scores are calculated, and the item with the highest score is selected as response data. According to the method, the response data are ensured to completely meet user requirements and system logic in the error-tolerant field, and the method has high accuracy and reliability.

The present disclosure relates to methods for assessing system inactivity, such as inactivity of LC or other fluidic systems. Some methods involve a test in which a column has been removed prior to injection of a sample including a positive (e.g., metal reactive moiety) control into the system. Some methods can include: (1) repeatedly injecting a sample into a system including: a fluidic path, wherein an inner surface of the fluidic path defines a wetted surface, and wherein at least a portion of the wetted surface of the fluidic flow path is coated with an inert coating, wherein the inert coating is inert to at least one analyte in the sample; (2) detecting a value associated with the positive control; and (3) analyzing the value associated with the detected positive control to determine system inactivity.

Injection-Locked Digital Oscillator This description relates to an injection-locked digital oscillator (2). An adder (100) adds the first and second digital words (OP2, OP1) and provides a third digital word (RES) as a result, the words being N bits long, with N an integer strictly greater than 1. A register (102) updates the second word from the third word (RES) at each period of a clock signal (clk). A first circuit (200) receives a reference signal (REF) at a natural frequency of one output bit (OUT), and a reference increment, inc_ref. The first circuit calculates a first value (valref) that is selectively equal to and less than the reference increment inc_ref, depending on at least one state of the reference signal.The first circuit provides the first word at least in part by summing the first value and a positive control number, P, the output bit being a bit from the second word. Figure for the abbreviation: Fig. 2.

Such a fuel filler flap arrangement with a fuel filler flap that is mounted on an articulated arm in a limited manner and which is pivotally mounted relative to a vehicle-side filling area, wherein a mechanical positive control engages the fuel filler flap, which has at least one flexible tension member that is articulated in the area of ​​a joint axis of the articulated arm on the one hand and on the fuel filler flap on the other hand, in order to generate a relative movement of the fuel filler flap relative to the articulated arm depending on a pivoting movement of the articulated arm about the joint axis, is known. According to the invention, the articulated arm is designed as a hollow profile with an internal closed channel penetrating the articulated arm lengthwise, and the at least one tension member is routed through the channel. Use for passenger cars

The invention provides a low-voltage lithium battery collision unlocking device and a new energy vehicle, and belongs to the technical field of safety unlocking control, and the device comprises a low-voltage lithium battery module, movable and static contacts of a magnetic latching relay module and an unlocking execution mechanism which are connected in series to form a first loop; coils of the low-voltage lithium battery module, the driving circuit module and the magnetic latching relay module are connected in series to form a second loop; the collision sensor module is used for collecting a collision signal of the low-voltage lithium battery module; the MCU control unit is in communication connection with the collision sensor module and the driving circuit module and is used for responding to the collision signal and outputting a forward control signal to the driving circuit module; and the driving circuit module is used for outputting forward pulse current to the magnetic latching relay module based on the forward control signal so as to control the magnetic latching relay module to be closed. According to the invention, the technical problems of high standby power consumption, low response speed, high possibility of misoperation and high possibility of causing secondary potential safety hazards in the existing scheme can be solved.

A luggage compartment cover for a motor vehicle including a flexible cover sheet windable on and unwindable from a winding shaft mounted rotatably in a cassette housing. Opposite end regions of the cassette housing are each provided with a holder for releasable, interlocking fixing of the cassette housing in vehicle-side holding receptacles. A holder has a blocking pawl pivotable between release and blocking positions and, in a vehicle-mounted state of the cassette housing, the blocking pawl engages behind a blocking contour of a vehicle-side holding receptacle. A mechanical securing element is mounted movably between a functional position blocking the blocking pawl in the release position and an inoperative position releasing the blocking pawl for a pivoting movement. The securing element is assigned a mechanical positive control which forcibly transfers the securing element into the inoperative position when the holder of the cassette housing is inserted into the vehicle-side holding receptacle.

The invention discloses a vehicle instrument testing system and a dial switch, a power supply module, a voltage switching circuit, a communication module, a lamp and a testing method thereof, and belongs to the technical field of vehicle testing. Wherein the power supply module supplies power to the control module and the communication module; the first bit output of the dial switch controls the positive control / negative control modes of various lamps, and the state change of the various lamps is used as a visual criterion for the normal function of the instrument; the input end of the voltage switching circuit is connected with the control module, and the output end of the voltage switching circuit is connected with the voltage detection end of the instrument module; and the communication module establishes a communication link with the instrument module. The I / O interface of the dial switch is connected with various lamps at the same time, when the instrument lamps are tested, the control signals of the positive control mode or the negative control mode are input into the lamps through the dial switch, whether the lighting states of the lamps correspond to the control signals or not is observed, the various lamps in the instrument can be tested quickly, and the testing efficiency is improved. And the instrument testing efficiency is effectively improved.

The invention relates to a fixed master-slave parallel boost fast charging system for a high-speed motor. The system comprises a first battery unit and a second battery unit which are connected in parallel. The first battery unit comprises a first battery module, a parallel positive control unit, a parallel positive control relay, a parallel negative control unit and a parallel negative control relay, and the second battery unit comprises a second battery module; the parallel positive control relay is respectively connected with the parallel positive control unit, the positive electrode of the first battery module and the positive electrode of the second battery module; and the parallel negative control relay is respectively connected with the parallel negative control unit, the negative electrode of the first battery module and the negative electrode of the second battery module. According to the system, a parallel connection mode is adopted, the problem of equipment idling caused by too long charging time is solved through a boosting mode, the charging time can be greatly shortened, the use efficiency of the equipment is effectively improved, the endurance anxiety is effectively relieved, and the reliability of the battery system can be integrally improved.

The invention relates to the technical field of kits, and discloses a peanut allergen component fluorescence PCR (Polymerase Chain Reaction) detection equivalent kit, which comprises (1) 2 * Probe qPCR Mix; (2) a florescence source probe primer mixture; (3) a 18S internal reference probe primer mixture; (4) ultrapure water; (5) positive control; (6) negative control; according to the invention, a dual detection mechanism of a florescence source specific gene and an eukaryote general reference gene is combined, and a specially designed chimeric recombinant plasmid is adopted as a multifunctional positive control, so that when a complex food matrix is treated, a forced standard reaching mechanism of a reference gene channel can timely identify a sample treatment abnormal condition; and wrong interpretation caused by improper operation is avoided. Meanwhile, the activity of core components of the kit can be verified through the two-channel synchronous response characteristic of positive control, and the credibility of a detection result and the scientific preciseness of interpretation are improved.

Such a loading flap arrangement with a loading flap that can be moved between a closed position and an open position relative to a vehicle-mounted loading trough by means of a multi-link kinematics is known. According to the invention, a mechanical additional locking mechanism is provided between the loading flap and the loading trough, which is movably mounted between a locking position and a release position, and a mechanical positive guidance system is provided for displacing the additional locking mechanism between the locking position and the release position, which has geometric control contours on the additional locking mechanism and on the loading trough, which, depending on the relative position relative to the loading trough, effect a positive control of the additional locking mechanism in the direction of the release position or in the direction of the locking position. Suitable for passenger cars with electric charging port

The application discloses a terahertz programmable metasurface unit of an RF MEMS switch and belongs to the technical field of communication, comprising: a second substrate, a positive control line, a back cover ground, a first substrate, a direct current grounding column, an upper patch, a signal line, an RF MEMS switch and a direct current bias line structure. The switch is controlled to be turned off and turned on through direct current voltage change, and a metasurface unit 180° reflection phase difference is realized. The application achieves the following technical effects: (1) the 180° reflection phase difference working bandwidth is large, the reflection phase difference range is 172° to 193° at 285GHz to 320GHz; (2) the reflection phase is high in linearity, the reflection phase range of the switch down state is 117° to 52° at 285GHz to 320GHz, and the reflection phase range of the switch up state is -53° to -129°; (3) the processing technology requirement is low, the second layer anchor point and the lower electrode of the switch are connected through the bias line respectively, and the number of electrode punching is reduced; and (4) the bias line part uses metal, the bias line voltage division is reduced, and the driving voltage is reduced.

The present disclosure is directed to a kit for evaluating system inertness. The kit includes a positive control comprising a metal interacting moiety, and a negative control that does not contain a metal interacting moiety. In some embodiments the kit also includes a container to hold a system suitability solution (e.g., an equimolar mixture of the positive control and the negative control).

A method for controlling a braking force of a brake system of a vehicle by means of a control device is provided. The method comprises the following steps: if there is a positive control difference between a braking force setpoint value (Bremskraft_Set) and a braking force actual value (Bremskraft_Ist): determining a first torque setpoint value (Drehmoment_Set 1); inputting the torque setpoint value as a manipulated variable (Drehmoment_Set) into a controlled system (14) of the brake system; and adjusting the braking force on the basis of the input manipulated variable (Drehmoment_Set); if there is a negative control difference between the braking force setpoint value and the braking force actual value after a preceding positive control difference: determining a second torque setpoint value (Drehmoment_Set 2) from the control difference; calculating a compensated manipulated variable (Drehmoment_Set) by subtracting a hysteresis value (Drehmoment_Hyst) from the second torque setpoint value (Drehmoment_Set 2); inputting the compensated manipulated variable (Drehmoment_Set) as the manipulated variable into the controlled system (14) of the brake system; and adjusting the braking force on the basis of the input compensated manipulated variable (Drehmoment_Set).

The present disclosure is directed to a kit for evaluating system inertness. The kit includes a positive control comprising a metal interacting moiety, and a negative control that does not contain a metal interacting moiety. In some embodiments the kit also includes a container to hold a system suitability solution (e.g., an equimolar mixture of the positive control and the negative control).

The invention relates to an ERA-Cas12a primer, a probe, crRNA and a kit for detecting insertion of a PLCP gene into EV-G, and belongs to the technical field of animal virus molecular biology detection. The kit comprises an ERA-Cas12a primer for detecting insertion of the PLCP gene into EV-G, a probe and crRNA, and further comprises a negative control template, a positive control template, a reverse transcription and ERA amplification reagent, a double-index nucleic acid detection test strip, Cas12a protein, an FAM / Biotin reporter and a lateral flow detection test strip. The kit provided by the invention has the advantages of specificity, sensitivity, rapidness, high efficiency, isothermal amplification, on-site rapid diagnosis and the like, and is easy to popularize and apply.

Embodiments directed to positive control of physical documents and removeable media devices are described. In one example embodiment, a computer-implemented method for positive control of physical documents includes determining that a document includes content of a defined type. The method further includes generating a physical document based at least in part on the document. The physical document includes the content and a unique identifier. The method further includes tracking the physical document based at least in part on document detection data obtained from at least one peripheral device that detects the unique identifier during a life cycle of the physical document. The document detection data is at least indicative of a status of the physical document at a time of detection by the at least one peripheral device. The method further includes performing one or more operations based at least in part on the document detection data.

The present description concerns a digital injection-locked oscillator (2). An adder (100) adds first and second digital words (OP2, OP1) and outputs a third result digital word (RES), the words being over N bits, with N an integer greater than 1. A register (102) updates the second word based on the third word (RES) at each period of a clock signal (clk). A first circuit (200) receives a reference signal (REF) at a natural frequency of an output bit (OUT), and a reference increment, inc_ref. The first circuit calculates a first value (valref) selectively equal to the reference increment inc_ref and to minus the reference increment inc_ref as a function at least of one state of the reference signal. The first circuit outputs the first word at least partly by adding the first value and a positive control number, P, the output bit being a bit of the second word.

The application provides a vehicle lighting synchronous control device and a synchronous control method. The signal detection unit acquires the ground voltage of the original vehicle lighting circuit in real time. The signal processing unit accurately identifies the control type (positive control or negative control) and the current light state according to the ground voltage, and converts them into a target state code. Finally, the control execution unit generates a driving signal according to the state code to realize real-time and accurate synchronous response of the target vehicle lamp and the original light state. The device does not need to break the line installation, has strong compatibility, can adapt to various vehicle models of different control types, effectively solves the problems of complex installation, poor synchronization and insufficient compatibility of traditional external lamps, and improves the safety and personalized experience of vehicle lighting.

A push-the-bit steering tool for drilling deviated wellbores comprises a steering head mountable to the bottom of a drill string and having steering pads extendable and retractable by fluid-actuated pistons; a fluid manifold co-rotatingly mounted to the steering head for delivering fluid to the pistons; a rotationally geostationary primary valve for delivering fluid to the fluid manifold; and a secondary valve for delivering fluid to the primary valve. The primary valve has a flow restrictor for regulating fluid flow to the pistons such that the steering pads will be sequentially actuated as the drill string rotates, and the steering force exerted against the wellbore by each sequentially-actuated steering pad will be in a constant selected direction. All of the pistons are hydraulically connected, thereby enabling dependent control of steering pad extension and dependent and positive control of steering pad retraction.

The utility model relates to an endometrial cancer detection kit which comprises a kit body, a kit cover is movably connected to one side of the top of the kit body, the kit body and the kit cover are connected through a buckle, a first limiting plate is installed at the bottom in the kit body, a limiting groove is formed in the middle of the upper surface of the first limiting plate, and a reagent shelf is installed in the kit body and located above the first limiting plate. A plurality of reagent grooves for mounting reagent tubes are formed in the reagent shelf, and a microwell plate is also placed in the middle of the upper surface of the reagent shelf; the plurality of reagent tubes are used for storing an enzyme marker, a chromogenic substrate, a sample diluent, a washing buffer solution, a positive reference substance and a negative reference substance. According to the endometrial cancer detection kit, safe storage and transportation of reagents can be ensured, the detection convenience, accuracy and reliability are improved, and powerful support is provided for early diagnosis of endometrial cancer.

This application discloses a high-voltage control system for new energy vehicles, relating to the field of new energy vehicle technology. The high-voltage control system includes a constant power supply, a battery management system, a first switching device, and a second switching device. The constant power supply is connected to a first connection terminal of the first switching device and a second connection terminal of the second switching device. A third connection terminal of the first switching device is connected to the positive control terminal of the high-voltage relay of the battery management system. A fourth connection terminal of the second switching device is connected to the negative control terminal of the high-voltage relay of the battery management system. The battery management system is used to control the high-voltage relay of the battery to disconnect when both the positive and negative control terminals of the high-voltage relay are detected to be at a low level, thereby cutting off the high-voltage power supply to the vehicle. Using this application, it is possible to conveniently and quickly achieve high-voltage power-off of the entire vehicle.

A time-sharing start control system and control method are provided with: a first contactor connected to one of high-power loads connected in parallel; the second contactor is connected with the other high-power load in the high-power loads connected in parallel; the negative electrode control unit is connected with the negative electrodes of the coils of the first contactor and the second contactor; and a positive electrode control unit connected to positive electrodes of coils of the first contactor and the second contactor, the positive electrode control unit being configured to be connected to the negative electrode control unit so as to continuously acquire a negative electrode control signal of the first contactor from the negative electrode control unit. And the current state information of the second contactor is continuously acquired from the auxiliary contact of the second contactor, so that simultaneous starting of the parallel high-power loads is avoided based on the cathode control signal and the current state information. Therefore, simultaneous starting of high-power loads connected in parallel on the aircraft can be avoided.

The present application relates to the technical field of battery management module, and more particularly to a kind of explosion fuse control end fault detection method and system.A kind of explosion fuse control end fault detection method, including first type fault detection: first detection loop is turned on, negative control end module, negative control end dry road resistance R3 and voltage division sampling unit are connected in series, explosion fuse control end equivalent resistance and parallel resistance R2 are connected in parallel with the voltage division sampling unit respectively;The voltage value V1 of detection sampling point A is calculated, the first voltage diagnostic value interval of the sampling point A under different first type fault condition is calculated, whether the voltage value V1 is in the first voltage diagnostic value interval is judged, and whether the corresponding first fault type fault of the explosion fuse control end exists is diagnosed.The type fault of positive control end and negative control end of explosion fuse can be effectively identified by using the above technical scheme, and the explosion fuse control circuit fault occurrence position is accurately positioned.

The invention relates to novel coronavirus nucleic acid detection primers and a kit, and belongs to the technical field of biological detection. The kit provided by the invention comprises a PCR (Polymerase Chain Reaction) premixed solution; positive control; performing negative control; specific primers and probes of the ORF1ab gene and the N gene of the SARS-CoV-2 virus as well as enzymes and auxiliary components required by RNA (Ribonucleic Acid) reverse transcription and DNA (Deoxyribose Nucleic Acid) amplification are covered in the PCR premixed solution. According to the kit disclosed by the invention, a one-tube PCR premixed solution, RNA reverse transcription and DNA amplification are carried out under the same system, the operation is extremely simple, convenient and time-saving, the kit can adapt to automatic detection, the transfer operation and aerosol pollution risks are effectively avoided, and the novel coronavirus RNA of various mutation types as low as 180 copies / mL can be detected within 60 minutes. The sensitivity of the kit for detecting a throat swab sample is 98.59%, and the specificity is 100%.

The invention belongs to the technical field of biological detection, and discloses a primer pair, a probe and a kit for rapidly distinguishing mouse hepatitis virus, reovirus type III, mouse pox virus and mouse parvovirus. Meanwhile, the invention also discloses a multiple fluorescent quantitative PCR method for simultaneously detecting mouse hepatitis virus, reovirus type III, mouse pox virus and mouse parvovirus by adopting the kit. The kit comprises: a) an amplification reaction solution, b) a primer mixed solution, c) an enzyme mixed solution, and d) a positive control. The multiple real-time detection kit provided by the invention can jointly detect mouse hepatitis virus, reovirus type III, mouse pox virus and mouse parvovirus at one time, and has the advantages of rapidness, simplicity, high sensitivity and strong specificity.

The invention relates to establishment of a portable biosensing platform and application of the portable biosensing platform in ultrasensitive multiple detection of antibiotic-resistant bacteria. The establishment method of the portable biosensing platform comprises the following steps: combining a double-chain compound S, a locking activator, a DNA activator collected by sample incubation, a micro-fluidic chip, a long afterglow nanoparticle probe ZGM (at) BHQ1, a CRISPR / Cas12a reaction reagent, a fuel chain F, a positive control and a blank control to obtain the portable biosensing platform. The invention also provides a portable biosensing platform. The invention also provides an application of the portable biosensing platform in ultrasensitive multiple detection of antibiotic-resistant bacteria. The invention provides a novel material for resisting multiple drug-resistant bacteria, which solves the problems that the existing single antibacterial strategy is limited and the expected curative effect cannot be achieved, and also solves the problem that the existing ARB detection method is difficult to detect multiple ARBs at the same time and has complicated and time-consuming procedures.

The application discloses a brand-new fan unit for a positive control laboratory, and relates to the technical field of fresh air fan units. The fan unit comprises a case, a self-cleaning filter device, a first electric fan, a second electric fan, a condenser, an evaporator, a sterilization device, a compressor and a filter. The first electric fan drives a two-stage supercharging assembly to rotate reversely, so that air flows into a supercharging chamber. The air is compressed in the supercharging chamber and is guided into the inside of a filter screen through a jet pipe. The high-pressure gas mixed with water mist washes the filter screen from the inside to the outside, so that the dust on the filter screen is cleaned under the impact and washing of the high-pressure gas-liquid mixture. The transmission plate on the two-stage supercharging assembly drives the whole filter screen assembly to rotate on a conical shell. Under the action of centrifugal force, part of the dust is thrown out, and the clean water on the filter screen is centrifugally thrown dry, so that the purposes of filter screen cleaning and centrifugal drying are achieved. The annular filter screen filters the dust in sewage, so that the purposes of filtering and recycling the clean sewage are achieved.