663results about How to "Precise ratio" patented technology

A method of monitoring the packet loss ratio in a label switching network is disclosed, in which an OAM frame carrying packet statistical information used for monitoring the packet loss ratio is sent by the source node to the destination node of an LSP such that the current packet loss ratio could be calculated upon receiving the OAM frame by the destination node according to the packet statistical information. The present invention also discloses a method for monitoring the packet loss ratio in a multi-domain label switching network. By the method for monitoring the packet loss ratio described in the present invention, the packet loss ratio can be monitored and obtained timely and accurately. The method is simple to realize while few modifications have to be made on the existing label switching network.

Embodiments for adjusting engine operating parameters based on output from an exhaust humidity sensor are provided. One example method for an engine comprises based on a dew point of exhaust gas, adjusting an exhaust gas sensor heater configured to heat an exhaust gas sensor disposed in an exhaust passage of the engine, the dew point based on output from a humidity sensor disposed in the exhaust passage.

The invention aims to provide a double-component glue automatic glue mixer with high safety performance, high production efficiency and good finished product quality. The automatic glue mixer comprises a glue storage mechanism, a glue transporting mechanism, a glue mixing mechanism, a reciprocating sizing mechanism, a heating insulation mechanism, a vat glue providing mechanism and a liquid level detection and electric control system. The glue storage mechanism employs a double glue storage barrel sealed structure. The glue transporting mechanism employs a structure of two motors connecting with the electric control system to ensure that an output glue proportion equals to a required glue proportion. The glue mixing mechanism employs a pneumatic performer to control two glues to enter into a mixing tube simultaneously and to mix fully through a double-spiral structured mixing core rod. The reciprocating sizing mechanism employs an automatic back-and-forth reciprocating motion apparatus. The heating insulation mechanism employs a multi-position heating to realize constant temperature of glue during an output process, so that an output proportion is more accurate. The vat glue providing mechanism realizes glue injection into the two glue storage barrels through the electric control system. The liquid level detection and electric control system realizes automatic control on an integral machine operation and controls glue proportion in a digitization approach with accurate proportion; besides the system can provide glue continuously to adapt high-speed automation production. The automatic glue mixer can ensure production efficiency, quality and safety; and compared with prior equipment, the automatic glue mixer is more convenient for operation, has a more reasonable structure and a more beautiful appearance.

The present invention discloses a bio-enzyme method preparing textile bamboo fibril and the method need not any chemical processing, has simple operation, short processing time and stabilizing product quality. The process is as follows: first of all, cutting bamboo and subdividing bamboo into bamboo strip, then boiling them in boiled water till they are soft, putting out, crushing and hammering into filament, then boiling in pressure cookers, immersing the treated bamboo filament in the solution containing bio-enzyme in order to the lignin, hemicellulose and pectin in bamboo filament can be dissociated by bio-enzyme and preparing the cellulose fiber in bamboo; then washing, bleaching, oiling, softening and opening the bamboo cellulose fiber dissociated by enzyme, then the bamboo fibril to be used for weaving is prepared. The invention solves the problem of stable product quality without any chemical treatment which is to be solved and has not been resolved.

The invention discloses a detection method and detection device for ctDNA (circulating tumor DNA) proportion based on capture sequencing. The detection method includes the following steps: S1, obtaining baseline sample DNA and gene data of capture sequencing of cfDNA (circulating cell-free DNA) to be tested; S2, using the homozygous and heterozygous sites in the baseline sample DNA at the same time, and selecting the sites on which the mutation frequency between the baseline sample DNA and the cfDNA to be tested is significantly different and the predetermined filtering conditions are satisfied as candidate SNP (Single Nucleotide Polymorphisms) sites; S3, determining a mutation type of the candidate SNP sites of normal cell DNA and ctDNA, in combination with the situation that copy numbervariation occurs in the region where the candidate SNP sites are located; and S4, establishing a probability model by using a maximum likelihood method, and obtaining ctDNA proportion by calculation through the probability model. The application of the technical scheme of the detection method and detection device for ctDNA proportion based on capture sequencing can improve the sensitivity and accuracy of CNV (copy number variation) detection of plasma ctDNA at the same time from various aspects.

An electronic valve actuation system and control method is described. The valve timing is changed between early and late intake valve closing depending on engine operating conditions. Further, valve timing is adjusted to control engine airflow or engine torque. Finally, air-fuel ratio is adjusted based on feedback from an exhaust gas oxygen sensor as well as an estimate of air, fuel, and residual exhausted from cylinders operating with late valve closing (after bottom dead center) timing.

The disclosed chemical element labeling method comprises: setting chemical element label included one or more elements with atomic number more than 22 on target, detecting the nominal spectrum data of label by X fluorescence detector to compare with detected data in security database. This invention does not dissolve general organic or inorganic solvent, has well stability, and introduces well detection accuracy without damage to target surface.

The opening of a solenoid valve is automatically adjusted after an engine is started and before actual work is performed for an appropriate air-fuel ratio, whereby it is possible to attain a good and stable driving of the engine without any delay even for an abrupt change in load.

After the engine is started, when a rotation speed enters a “fuel flow rate adjusting rotation speed range” in which a definite load is applied to the engine in a working rotation speed range of the engine in which a throttle valve is opened to a definite opening, a detected rotation speed is fed back to a target rotation speed, and the opening of the solenoid valve is controlled to adjust a fuel flow rate, so that the combustion state in the engine is optimized at the valve opening so determined.

The present invention provides a multi-purpose cap for drink containers to facilitate mixing an additive with a liquid such as water. The cap includes a chamber for housing the additive and a mouthpiece from which the liquid can be consumed. The cap is preferably configured to mate with the mouth of a standard water bottle. In some examples of the invention, twisting a mouthpiece in a first direction urges a plunger downward and against a seal, breaking the seal to spill the contents of the chamber into the water. Openings in a housing forming the chamber allow water to flow through the mouthpiece even while the additive remains sealed within the chamber.

A controller of an engine that can use a blended fuel with alcohol blended therein, the controller includes: an ignition timing controller, operable to control an ignition timing of the engine; an exhaust air-fuel ratio detector, operable to detect an exhaust air-fuel ratio of the engine; a concentration detector, operable to detect concentration of the alcohol in the blended fuel; an operation state detector, operable to detect an operation state of the engine; and a corrector, when the operation state which is detected by the operation state detector is a high-speed, high-load operation state, as the concentration of the alcohol which is detected by the concentration detector is higher, operable to control an injection amount which is injected from a fuel injection valve to correct a target equivalence ratio more in a lean direction, and operable to correct the ignition timing which is controlled by the ignition timing controller more to a spark advance side.

An internal combustion engine diagnostic device and an internal combustion engine diagnostic method identify an abnormal cylinder having an abnormal air-fuel ratio among a plurality of cylinders during the operation of an internal combustion engine. The internal combustion engine diagnostic device comprises: an air-fuel ratio control unit for changing the air-fuel ratio in a stepwise manner by controlling a fuel injection amount adjusting means that adjusts the fuel injection amount of each of the plurality of cylinders; and an abnormal cylinder identification unit for identifying an abnormal cylinder on the basis of the relationship between each air-fuel ratio changed in a stepwise manner and the number of misfires occurring in the plurality of cylinders, the number being counted by a misfire counter for each air-fuel ratio changed in a stepwise manner.

The invention relates to the technical field of alloy ingots, and in particular relates to a zirconium-based alloy ingot and a preparation method thereof as well as a prepared zirconium-based amorphous alloy. The preparation method of the zirconium-based alloy ingot comprises two steps, namely, a vacuum arc melting method and a vacuum high frequency melting method, wherein the vacuum arc melting method comprises steps of mixing and melting Ni metal and a high melting point method Nb metal, thereby reducing the melting temperature; in addition, except the impurities in the raw materials in the vacuum arc melting method, no other impurities are mixed, so that the purity of the alloy is ensured; a mother alloy obtained by using the vacuum arc melting method is further mixed with the rest materials for secondary melting, thereby obtaining a five-element alloy ingot with accurate proportion. The zirconium-based alloy ingot is die-cast in a vacuum environment, a cooling speed expected by over-cooling is met so as to prevent the materials from crystallization, and the zirconium-based amorphous alloy with the thickness of 0.5-3mm can be manufactured.

A wide range continuous diluter for diluting gases that contain small particles to allow subsequent measurement of the diluted gases with an instrument is provided. A dilution gas inlet receives a dilution gas, and a sample gas inlet receives a sample gas. A flow meter measures the sample gas flow rate. A mixer receives and mixes the dilution gas and the sample gas at a dilution ratio. An instrument flow outlet provides a well-defined flow into the instrument from the mixture flow. A make-up gas inlet is arranged to provide make-up gas into the mixture flow at a controlled rate. Because the dilution gas flows at a controlled rate and the mixture flows at a controlled rate, changing the flow rate of the make-up gas causes a responsive change in the sample gas flow rate, thereby allowing continuous adjustment and control of the dilution ratio when desired.

An InSAR and GNSS weighting method for three-dimensional surface deformation estimation includes steps of: Step 1: establishing a functional relationship between three-dimensional deformation d⁰ of an unknown point and a certain amount of InSAR/GNSS data L_i of surrounding points by using ascending and descending orbit InSAR data and GNSS data based on a strain model and observation imaging geometry: Step 2: performing relative weighting on K_i observation data in the InSAR/GNSS data L_i, and determining an initial weight matrix W_i of various InSAR/GNSS observations; Step 3: determining accurate weight matrix Ŵ_i between the various InSAR/GNSS observations by variance component estimation, and solving the three-dimensional deformation d⁰ based on a least square method; and Step 4: performing the steps 1-3 for each surface point to estimate a high-accurate three-dimensional surface deformation field by fusing InSAR and GNSS.

The invention relates to a double-labeling kit for detecting troponin (Tn) and a compound and preparation and detection methods of the double-labeling kit, and belongs to the field of immunodetectionanalysis technologies and nano-biotechnologies. The kit comprises a reaction buffer solution integrated on a reagent strip, a cleaning solution, an enhancement solution, a magnetic particle solution coating a cTnI monoclonal antibody, a europium-labeled cTnC monoclonal antibody solution and a samarium-labeled cTnI monoclonal antibody solution and 2-6 bottles of additional freeze-dried calibrationproducts of natural cTnI antigens (containing cTnC) with different concentrations. The kit can provide a nearly-homogeneous double-labeling reaction system to ensure that the content of cTnI with complete fragments and the cTnI-C compound is detected simultaneously, the detection time is shortened, the efficiency is improved, and convenience is brought to clinical use.

In a multicylinder internal combustion engine including a turbocharger, the turbocharger employs a twin-entry turbo where a turbine includes two exhaust gas inflow ports. A first exhaust passage guides an exhaust gas discharged from a first cylinder group of the internal combustion engine to one exhaust gas inflow port of the turbocharger. A second exhaust passage guides an exhaust gas discharged from a second cylinder group of the internal combustion engine to the other exhaust gas inflow port of the turbocharger. An exhaust gas collecting portion of the first exhaust passage and an exhaust gas collecting portion of the second exhaust passage each include an air-fuel ratio sensor. This configuration allows efficiently contact of the exhaust gas on an element portion of the air-fuel ratio sensor, thus accurately detecting an air-fuel ratio of the exhaust gas at an upstream side of a catalyst for each cylinder.

A delay-locked loop for timing control, includes a voltage-controlled delay line that delays a reference clock to generate a multi-phase clock comprising a plurality of delayed phase clocks; and an up/down controller that receives one of the delayed phase clocks as a feedback clock and generates a frequency up/down control signal based on whether a rising edge of the feedback clock coincides with a falling edge of the reference clock. The delay-locked loop further includes a charge pump that charges or discharges a loop filter connected to the voltage-controlled delay line according to a frequency up/down control signal from the up/down controller; and a harmonic lock detector that compares phases of multiple ones of the delayed phase clocks with a phase of the reference clock, and operates such that the multi-phase clock is locked within a first cycle of the reference clock.

A prediction method according to the present invention is a method for predicting a modal damping ratio of a composite head including two or more kinds of materials including a first material and a second material. The method includes the steps of: presuming at least a coefficient Px of a generalized Maxwell model M1 in the first material using a known material damping ratio ζ1; obtaining a calculation model of the head using the generalized Maxwell model M1; and calculating the modal damping ratio of the head based on analysis of the head using the calculation model. Preferably, the Maxwell model is further used also for the second material. Preferably, the method further includes the step of presuming a coefficient Py of a generalized Maxwell model M2 in the second material using a known material damping ratio ζ2.