81results about How to "The judgment method is simple" patented technology

The invention discloses an XLPE cable insulation aging state determining method. The method includes firstly, determining whether aging exists or not by means of the partial discharging amount of a first cable sample, if not, calculating the isothermal relaxation current according to a second cable sample, acquiring aging factors, calculating the activation energy of XLPE according to a third cable sample, adopting the aging factors and the activation energy of XLPE as common criterion, and acquiring whether aging of the cable to be tested exists or not and the severity of the aging state. The cable insulation aging state can be determined by the isothermal relaxation current method and the activation energy method comprehensively, the defect that large determination errors are produced since the XLPE insulation cable aging state is determined by one single indicator is overcome, the more accurate estimation of the XLPE cable insulation aging state is provided by combining the electric quantity (aging factors) and non electric quantity (activation energy), and the method is simpler.

The invention provides a load balancing method for an LET (Long Term Evolution) network, comprising the following steps: utilizing spare bytes in MIB (Master Information Block) information of a broadcast channel of a network node eNB (Evolved Node Base) to carry load status information of cells; and after the receipt of the load status information from the network node by a terminal where the system information is updated, the cell load is high and the cells are selected or reselected, selecting the cell with low load and relatively strong cell signal to access. With the adoption of the load balancing method for the LET network, each cell in the LET network can be enabled to be located at a relatively balanced state; and therefore, the system capacity of the LTE network is improved; the cells are prevented from being congested; the network resource utilization rate is improved; the transmission time delay is decreased; and the user experience is improved.

The invention discloses a multiple rapid detection method, a detection primer group and a kit for three food-borne pathogenic bacteria. According to the invention, upstream and downstream primers of an external primer and upstream and downstream primers of an internal primer of a rapid detection primer group of salmonella correspondingly have sequences as shown in SEQNo.1, SEQNo.2, SEQNo.3 and SEQNo.4; upstream and downstream primers of an external primer and upstream and downstream primers of an internal primer of a rapid detection primer group of staphylococcus aureus have sequences as shown in SEQNo.5, SEQNo.6, SEQNo.7 and SEQNo.8; upstream and downstream primers of an external primer and upstream and downstream primers of an internal primer of a rapid detection primer group of Listeria monocytogenes have sequences as shown in SEQNo.9, SEQNo.10, SEQNo.11 and SEQNo.12. By using the method in the invention, the defect that the prior art can not be used for simultaneously judging whether multiple pathogenic bacteria exist in the same system at the same time is overcome, and whether the same detected sample contains one or more of salmonella, staphylococcus aureus and Listeria monocytogenes can be correctly detected.

The invention belongs to the technical field of flue-cured tobaccos, and particularly relates to a method for authenticating clean aroma type flue-cured tobaccos on the basis of activity thresholds. The method includes steps of smoking tobacco leaves; trapping particle-phase substances; qualitatively and quantitatively analyzing aroma components; computing and adding the activity thresholds; judging results and the like. Flue-cured tobaccos from Yunnan and Fujian regions are used as vectors, aroma note types of different aroma substances in smoke systems of the flue-cured tobaccos and threshold conditions of the different aroma components are researched and screened, adding data of the activity thresholds of the aroma substances which belong to the same aroma note are used as measurement indexes, accordingly, main aroma note of the smoke systems can be defined, and aroma types can be determined. The method for authenticating the clean aroma type flue-cured tobaccos on the basis of the activity thresholds is established on the basis of the main aroma note and the aroma types. Compared with the prior art, the method has the advantages that the method for judging the clean aroma type flue-cured tobaccos is simple and speedy, objective and reliable judgment results can be obtained by the aid of the method, and reference can be provided for judging other aroma types of the flue-cured tobaccos and different aroma types of other types of tobaccos.

The invention discloses a method, kit and primers for detecting of species of Salmo. The method comprises the following steps: (1) by using genome DNA (deoxyribonucleic acid) of a sample to be detected as a template, amplifying the genome DNA of the sample to be detected by using specific amplification primers, wherein the sequences of the specific amplification primers are respectively disclosed as SEQ ID NO:1-SEQ ID NO:10 in the sequence table; and (2) carrying out gel electrophoresis analysis on the PCR (polymerase chain reaction) amplification product, wherein the sample to be detected with specific strips belongs to Salmo salar or Oncorhynchus keta. Compared with the traditional method, the method disclosed by the invention is accurate and unique. The operating personnel does not need much working experience, and only needs to do the experiment according to the operation steps. The kit has the advantages of short required detection time, low cost, high specificity of detection results and simple detection result judgment method.

The micro-expression generation detection method comprises the following steps: 1) recording normal electroencephalogram data and normal facial video data of a testee before stimulating and inducing micro-expressions; 2) stimulating and inducing micro-expressions, and recording electroencephalogram data and facial video data; 3) marking timestamp data, and matching electroencephalogram time data with facial video time data; 4) obtaining the starting point time Tsm of the response of the electroencephalogram time data, and the starting and ending frames and the top frame of the facial expression change; and 5) judging whether the the micro-expression occurs or not. According to the method, the electroencephalogram signals and the facial image information are associated through the timestamps, the electroencephalogram signals and the facial video data are processed respectively, whether the micro-expressions occur or not is judged in combination with the processing result, and the accuracy of the judgment result is high.

The invention discloses a capacitor end portion contact state detection method comprising the following steps: determining whether a to-be measured metalized film capacitor equivalent series resistance ESR is bigger than a threshold or not, if yes, the capacitor end portion contact state is poor, otherwise, the capacitor end portion contact state is good; the capacitor equivalent series resistance ESR parameter is the metalized film capacitor equivalent series resistance measured under 100Hz; the threshold is the metalized film capacitor equivalent series resistance theory calculating value under 100Hz. The method uses the capacitor 100Hz equivalent series resistance ESR parameter to detect the end portion contact state, thus preventing the capacitor temperature rise caused by poor end portion contact state under pulse current, preventing capacitor failure under electromotive force effect, and preventing severe influences on discharge efficiency and discharge waveform; the method can conveniently detect the capacitor end portion contact state, thus easily removing capacitors with poor end portion contact state from a batch of capacitors, and selecting the capacitors with good end portion contact state.

The invention discloses a lightning electromagnetic pulse damage effect judgment method for an airborne very-high-frequency communication radio station. The lightning electromagnetic pulse damage effect judgment method comprises the steps of: firstly, establishing a test platform; secondly, determining lightning electromagnetic pulse waveform types and single waveforms and amplitudes contained inthe lightning electromagnetic pulse waveform types; thirdly, detecting sensitivity performance parameters before testing, and recording parameter values; and finally, respectively carrying out a pin injection test and a cable induction test, comparing the obtained sensitivity performance parameter value after the test with the sensitivity performance parameter value before the test so as to determine whether a lightning electromagnetic pulse damage effect occurs. The lightning electromagnetic pulse damage effect judgment method is simple, reasonable and effective, can improve the judgment accuracy rate based on the actual application requirements, can effectively judge whether the airborne very-high-frequency communication radio station has the lightning electromagnetic pulse damage effector not, and further can accurately judge the lightning induction transient sensitivity level of the tested equipment.

The invention relates to an offshore wind turbine group grid-connected resonance stability discrimination method based on impedance modeling, and the method comprises the following steps 1) constructing a linearized state space model of a large-scale offshore wind turbine group based on a double-fed wind turbine generator through an AC grid-connected system; 2) establishing an equivalent impedancemodel of the doubly-fed wind turbine generator; 3) establishing an offshore wind turbine group submarine cable single-machine grid-connected equivalent model, and obtaining submarine cable single-machine grid-connected equivalent impedance; and 4) according to the offshore wind turbine group submarine cable single-machine grid-connected equivalent model and the impedance model of the doubly-fed induction fan, judging the stability of the offshore wind turbine group submarine cable single-machine grid-connected equivalent model by adopting a Nyquist stability criterion and a Bode diagram, andwhen the single-machine grid-connected equivalent model tends to be stable, considering that the original offshore wind turbine group grid-connected system tends to be stable. Compared with the priorart, the method has the advantages of simplified judgment, accurate judgment and the like.

The invention discloses a method for screening a 6-tube balanced terahertz frequency tripler based on DC detection, and relates to the technical field of frequency multipliers. The method comprises the following steps: adjusting the test gear of a multimeter to a diode test gear, firstly connecting a red probe of the multimeter with the core of an SMA head, connecting a black probe of the multimeter with a cavity shell of the frequency multiplier, wherein the multimeter displays a starting voltage of one diode string at this time; then, connecting the black probe of the multimeter with the core of the SMA head, and connecting the red probe of the multimeter with the cavity shell of the frequency multiplier, wherein the multimeter displays the starting voltage of another diode string at this time; and judging whether the performance of the 6-tube balanced terahertz frequency tripler is qualified according to the numerical value sizes of the two tested starting voltages. The method is simple in process and can be used for quickly screening out the unqualified terahertz frequency tripler.

The invention provides a kit and method for multiple detection of ROS1 fusion gene mutation and particularly, discloses primers and probes for multiple detection of ROS1 fusion gene mutation, and a kit comprising a primer and probe mixed solution. Six kinds of ROS1 fusion gene mutation types can be detected at the same time. The kit and method for multiple detection of ROS1 fusion gene mutation have the following advantages: the detection process is simple, the multiple detectable mutation types can be detected, the sensitivity is high, and the sample dependence is low and the like.

The invention provides a primer probe combination and a kit for detecting EGFR gene mutation. Specifically, the invention discloses a primer for multiplex detection of EGFR gene mutation, a probe anda kit including a primer and probe mixed solution. According to the invention, 18 gene deletion mutations of exon 19 of the lung cancer EGFR gene can be simultaneously detected. The method and the kitof the invention have the advantages of simple detection process, multiple detectable mutation types, high sensitivity, small sample dependence and the like.

The invention provides a robot path interference detection method and system. The robot path interference detection method comprises the following steps: sending a detection instruction to a server when a first robot detects a second robot; respectively acquiring a first residual path of the first robot and a second residual path of a second robot by the server according to the detection instruction; comparing the first residual path with the second residual path to acquire a comparison result; and judging whether path interference exists between the first robot and the second robot accordingto the comparison result. Therefore, the operation of judging whether the first robot and the second robot judged and sensed by the first robot can meet is realized without complexly analyzing whetherthe tracks are parallel or not; the judgment method is more efficient and simple, so that the robot can take measures in advance to avoid the meeting.

The invention discloses a method for judging performance of a motor controller of a test system, and the test system comprises a driving motor, a controller, a water pump, a radiator, a first electricheating box, a second electric heating box and a control and data acquisition unit, wherein the driving motor and controller are devices under test; and the thermal balance judgment formula of the driving motor controller can determine that the driving motor controller can meet the requirements of the high temperature test at that time. Through a large amount of research, the method provided by the invention proposes a new motor controller thermal balance judgment formula, which is used to determine whether the motor controller meets the requirements, thereby improving the intelligence of thetest and greatly simplifying the judgment method.

The invention provides a multiplex detection kit for EGFR gene mutation. Specifically, the invention discloses a primer for multiplex detection of EGFR gene mutation, a probe and a kit containing theprimer and probe mixed solution. According to the invention, 28 mutation types of the lung cancer EGFR gene can be detected simultaneously. The method and the kit of the invention have advantages of simple detection process, many detectable mutation types, high sensitivity, small sample dependence and the like.

The invention discloses a method for screening a 4-tube balanced terahertz frequency tripler based on direct current detection, and relates to the technical field of frequency multipliers. The methodcomprises the steps that the test position of a multimeter is adjusted to the test position of a diode; the red probe of the multimeter is connected with the core of an SMA head, and the black probe of the multimeter is connected with the cavity casing of a frequency multiplier; at the same time the multimeter displays the turn-on voltage of one of diode strings; the black probe of the multimeteris connected with the core of the SMA head, and the black and red probes of the multimeter are connected with the cavity casing of the frequency multiplier; at the same time the multimeter displays the turn-on voltage of another diode string; whether the performance of the 4-die terahertz balanced frequency tripler is qualified according to the tested numerical values of two turn-on voltages. Themethod is simple in process and can quickly screen out unqualified terahertz frequency triplers.

The invention provides a kit for detecting KRAS gene mutation. Specifically, the invention discloses a primer for multiplex detection of KRAS gene mutation, a probe, and a kit containing a primer andprobe mixed solution. According to the invention, 8 mutation types of the lung cancer KRAS gene can be simultaneously detected. The method and the kit of the invention have the advantages of simple detection process, multiple detectable mutation types, high sensitivity, small sample dependence and the like.

The invention discloses a system and method for electrified railway overhead line online ice resistance. According to the system, a static var generator, a voltage transformer, an overhead line temperature sensor and a control unit are arranged at the tail end of an electrified railway traction substation power supply arm. A control end of the static var generator, an output end of the voltage transformer and an output end of the overhead line temperature sensor are connected with the control unit. Meanwhile, a telecontrol device is connected with the control unit as well. The static var generator in the system is usually used for network voltage compensation and is in an ice resistant work condition when the system is possibly frozen, a network voltage measured by the voltage transformer is compared with an average network voltage, whether a train is on the power supply arm or not and the loading condition of the power supply arm are judged, and therefore the static var generator is controlled to generate capacitive or sensitive ice resistant currents. Online efficient ice resistance can be conducted under the conditions that the operation of overhead lines is not stopped and the train operates normally and the safety of the operation of the train is guaranteed.

The invention discloses a judgment method of the weaving mode of a conductive fabric and the type of conductive yarn. The method includes the steps of laying the to-be-detected fabric on a tabletop atfirst and utilizing a universal meter to randomly measure the resistance of different continuous parts of the to-be-detected fabric in the warp direction and the weft direction; then, clipping the to-be-detected fabric into strip-shaped samples and fixing the two ends of each fabric sample; placing the fabric samples on a judgment device, conducting data collection according to resistance/currentchanges of the to-be-detected fabric samples during constant-speed stretching and obtaining a relational graph between the resistance/current and time or between the resistance/current and stretching; according to the features of the relational graph, judging the weaving mode of the to-be-detected fabric and judging the type of the conductive yarn. The judgment device involved in the judgment method includes the fabric samples, wherein the two ends of each fabric sample are fixed and clamped by electrodes; the fabric samples are connected with a switch, a standard resistor and a DC power source in series, the standard resistor is connected with low-pass filtering in parallel, and the low-pass filtering is electrically connected with a data collecting device and a PC. The weaving mode of the fabric can be judged quickly and accurately, and the type of the conductive yarn in the fabric is also judged.