34results about How to "Does not destabilize" patented technology

The invention discloses a false data injection attack design and defense method for a direct current microgrid. For a network communication message in the secondary control layer of the direct currentmicrogrid, malicious false data are injected. At the same time, considering the initial state estimation bias and measurement noise existing in the original detection process, a covert data injectionattack method is designed to cause disturbance to current/voltage without affecting the existing attack detection indicators. The covert data injection attack acquired through analysis affects the average voltage value of coupling points in the direct current microgrid. A proportional-integral dynamic average consistency algorithm is used to estimate the average voltage value of the coupling points in the direct current microgrid. The covert data injection attack is detected based on the average voltage deviation of the coupling points. Finally, a proportional-integral compensation mechanismis used to compensate the average voltage deviation of the coupling points. The secondary control input is adjusted. Voltage balance in the direct current microgrid is re-established.

Present invention relates to a liquid phase chromatography column and preparation method, which includes one elastic quartz capillary without adhesive joining. It features middle of said capillary set with integral stationary phase formed by organic polymer in situ polymerization and modified by weak acid cation, lower reaches of said stationary phase set with detect window removing coated surface polyimide. Said invented includes 1, to proceed general pretreatment to elastic quartz inner wall, 2, making integral stationary phase basal body using monomer mixture, porogenic agent mixture and initiator, 3, modifying stationary phase basal body by modifier to obtain subacidity cation exchange integral stationary phase, 4, making detect window to obtain subacidity cation exchange capillary liquid phase chromatography column. Said invention has los price, easy to control preparing condition, fine reproduction quality, fine consistency with biological sample, suitable for biomacromolecule sample isolation analysis.

The invention discloses a preparation method of normal-temperature yoghurt containing complete fruit granules. The preparation method comprises the following steps: evenly mixing 90% to 95% pre-sterilized antibiotics-free milk, 4% to 8% of sweetening agent, 1.0% to 1.5% of modified starch and 0.2% to 0.6% of stabilizer in a vacuum material mixing mode, homogenizing and performing pasteurization onhomogenized liquid; adding 0.003% to 0.009% fermenting agent to perform fermentation and performing demulsification and sterilization when acidity reaches 70 to 90 thorner degrees to obtain a yoghurtbase material with a viscosity as 300 to 500cP; mixing 30% to 40% of white granulated sugar, 50% to 60% of mixed berry fruit granules, 0% to 1% of edible essence and 0.5% to 2% of PH modifier to obtain a mixture and storing the mixture under 4 to 10 DEG C, wherein the percents are mass percents of all the ingredients in the mixture; sterilizing and filling to obtain mixed berry fruit granules with a viscosity as 300 to 500cP; setting a mass ratio of the yoghurt base material adding amount to the mixed berry fruit granule adding amount as (9 to 8) to (1 to 2), mixing under a static state at first, then stirring to be mixed under a dynamic state and filling after being mixed. By means of a conveying and mixing mode of the yoghurt, the fruit granules can be evenly distributed in the yoghurt;furthermore, the mixing mode cannot affect system stability and granule completeness of products in the expiration date.

The invention discloses a compensation controller. The compensation controller comprises an operational amplifier, a first resistor, a second resistor, a first capacitor, a second capacitor, a first switch, a second switch and a third switch; the compensation input end is connected with the reverse input end of the operational amplifier after being connected with the first resistor; the positive input end of the operational amplifier is grounded, and the output end is connected with the feedback output end; the first capacitor is connected with the compensation input end and the reverse inputend of the operational amplifier; the first switch and the first capacitor are connected in series; the second resistor, the third switch the second capacitor are connected in series, and then the integral end is connected with the output end of the operational amplifier, and the other end is connected with the reverse input end thereof; and the third switch and the second capacitor are connectedin series and then are connected with the second switch in parallel. The compensation controller is used for an accelerometer closed-loop control system, and the compensation modes can be changed according to different sensitive structures of the accelerometers, so that the system performance is improved, and the system stability is enhanced.

The invention discloses a game auxiliary system based on image recognition and audio recognition. The system comprises a game image acquisition preprocessing module, a game sound acquisition preprocessing module, a digital image recognition module, a digital audio recognition module and a recognition result prompting module, wherein the five modules are divided according to the logic function of aprocessing task to jointly form an application program, and the data transmission and the signal transmission among the modules are completed through an in-process communication technology, so that the system is very efficient. Therefore, the system can accurately identify enemies lurking in the distance and vehicles and the position of the gunshot, and give prompt icons in a striking color on agame screen in real time; and in addition, an electronic compass and a small map can be identified to give a travel instruction to a player for the player to enter a safe area, and the survival time of an ordinary primary player in the game can be prolonged through auxiliary prompts, so that the game experience is improved.

The present disclosure relates to polynucleotides having promoter activity and applications thereof in the production of amino acids. Specifically, the present disclosure relates to a polynucleotide having promoter activity, a transcription expression cassette containing the polynucleotide, a recombinant expression vector, a recombinant host cell, a method for enhancing expression of a target gene, a method for preparing a protein, and a method for producing an amino acid. The polynucleotide with the promoter activity is a mutant of the polynucleotide with the sequence as shown in SEQ ID NO: 9, compared with the polynucleotide with the sequence as shown in SEQ ID NO: 9, the promoter activity of the mutant is remarkably enhanced, stable and efficient expression of a target gene can be promoted, and then downstream products can be stably and efficiently produced.

A conveyor (1) for conveying products along a conveying track (23) with varying temperature, comprising a first axle (3) provided with first divert wheels (2) and a second axle (4) provided with second divert wheels (5) and a plurality of modular, endless conveyor mats (6) built up from plastic modules (15) , travelling in side-by-side parallel relation in a conveying direction around the first and second divert wheels.

The invention provides a low-frequency sound absorber allowing passing of fluid. The low-frequency sound absorber allowing passing of fluid comprises a plurality of sound absorption units, and gaps allowing passing of fluid are formed among the sound absorption units. Each sound absorption unit comprises a hollow pipe body and plate bodies, wherein an opening extending in the axial direction of the pipe body is formed in the lateral wall of the pipe body, and the plate bodies are arranged at the two ends of the pipe body separately to close the two ends of the pipe body. According to the low-frequency sound absorber allowing passing of fluid, the gaps allowing passing of fluid are formed among the sound absorption units, so that application of the sound absorber to a pipeline system and other occasions is realized, absorption of sound waves is realized while fluid passes by, and low-frequency noise is reduced.

The invention discloses a dynamic displacement monitoring system for an equipment chamber base plate of an underground coal preparation plant. The dynamic displacement monitoring system comprises sensor nodes, SINK nodes, a base station and a monitoring host unit, wherein the sensor nodes, the SINK nodes and the base station are arranged in a well; the monitoring host unit is arranged on the well; the sensor nodes are wirelessly connected with the SINK nodes; the SINK nodes, the base station and the monitoring host unit are connected through wires. The dynamic displacement monitoring system for the equipment chamber base plate of the underground coal preparation plant based on ZigBee can be used for monitoring equipment foundations in an equipment chamber of the underground coal preparation plant to fulfill the aim of monitoring the displacement of the chamber base plate. The system is low in power consumption, high in reliability, high in sensitivity, easy to integrate and resistant to a severe industrial environment; the installation of the nodes cannot affect the operation of equipment and passing of people, and cannot damage the integrality and the stability of the equipment foundations.

The invention discloses a use method of a scaffold in-situ fastening system, and relates to the technical field of stone curtain wall construction. The problems that the installation positions of scaffold wall connecting pieces and the installation positions of curtain wall unit plates conflict, the construction risks are high due to hole filling installation, and the installation quality is difficult to guarantee are solved. The use method comprises the following steps that the scaffold wall connecting parts are installed between the exterior wall of a building and scaffolds, and curtain wallunit plates are installed from bottom to top layer by layer; and when the scaffold wall connecting pieces are in a horizontal projection area of the preinstalled curtain wall unit plates, in-situ fastening devices replace the scaffold wall connecting pieces, the installation positions of the in-situ fastening devices corresponding to transverse joints are determined, anchoring parts are fixed, first fastening pieces are connected to the anchoring parts in a clamped mode, the other ends of the first fastening pieces penetrate through the transverse joints and extend to the outer side of a vertical face in which the curtain wall unit plates are located, one ends of second fastening pieces are connected to the extended ends of the first fastening pieces, and the other ends of the second fastening pieces are connected with the scaffolds; and the scaffold wall connecting pieces located in the horizontal projection area are removed, and the curtain wall unit plates are installed orderly.

The invention discloses an application method of a scaffold in-situ tying device, relates to the field of stone curtain wall construction, and aims at solving the problems that the positions of current scaffold wall-connection parts conflict with the mounting positons of curtain wall unit plates, hole-filling-type installation causes large construction dangerousness, and the mounting quality is low. The application method of the scaffold in-situ tying device includes the steps that the curtain wall unit plates are mounted from bottom to top, when a scaffold wall-connection part is arranged inthe horizontal projection area of the pre-mounted curtain wall unit plates, the in-situ tying device is adopted to replace the scaffold wall-connection part, the mounting position of the in-situ tyingdevice corresponding to a transverse joint is determined on a building base layer, a wall-connection embedded part is fixed to the mounting position, a first tying part is in clamped connection withthe wall-connection embedded part, the other end of the first tying part penetrates through the transverse joint and extends to the outer side of the vertical face where the curtain wall unit plate are located, then, one end of a second tying part is connected to the extension end of the first tying part, and the other end of the second tying part is connected with a scaffold body; the scaffold wall-connection part in the horizontal projection area of the curtain wall unit plates is disassembled, and then the curtain wall unit plates are mounted in sequence.

The invention discloses a solid water quality cleaning agent for aquaculture and a preparation method thereof. The solid water quality cleaning agent comprises the following raw materials and components: trichosanthes kirilowii maxim, platycodon grandiflorum, purslane, corn flour, molasses meal, tartaric acid, citric acid, vermiculite powder, medical stone, magnesium peroxide, paraffin and humic acid. The method comprises the following specific steps: 1) preparing a traditional Chinese medicine extracting solution through trichosanthes kirilowii maxim and platycodon grandiflorum; 2) adding corn flour, molasses meal, tartaric acid and citric acid to the traditional Chinese medicine extracting solution; and processing to obtain mixed powder; 3) adding vermiculite powder and medical stone toa formic acid solution, and soaking; 4) roasting and grinding after soaking so as to obtain mixed powder; 5) adsorbing magnesium oxide to the mixed powder by an air phase method; and 6) adding the mixed powder obtained in 2), paraffin and humic acid; and pelletizing to obtain the product. The water quality cleaning agent is wide in component source, low in cost, environmentally friendly, nontoxic,high in biodegradation rate, free from secondary pollution to a pool, and wide in application prospect.

The invention discloses a terminal group and a forming method thereof, and the terminal group comprises a lower terminal which is provided with a lower main body part and a lower contact arm extendingforwards from the lower main body part; a first upper terminal provided with a first upper main body part, a first upper convex part which protrudes downwards from the first upper main body part anda first upper contact arm which extends forwards from the first upper main body part, wherein the first upper contact arm and the lower contact arm are arranged in a vertically spaced mode, and each first upper convex part is provided with a first upper welding plane which abuts against the top surface of the lower main body part downwards and is in laser welding with the top surface; second upperterminal. The group also comprises a second upper contact arm provided with a second upper main body part, wherein a second upper convex part convexly arranged downwards from the second upper main body part, and a second upper contact arm extending forwards from the second upper main body part; the second upper contact arm and the first upper contact arm are arranged in an up-and-down spaced mode, the second upper protruding parts and the first upper protruding parts are arranged in an up-and-down staggered mode, and each second upper protruding part is provided with a second upper welding plane which downwards abuts against the top face of the first upper body part and is in laser welding with the top face of the first upper body part.

The invention discloses an antirust pigment for cathode electrophoretic paint and a slurry preparation method of the antirust pigment, the antirust pigment is composed of phosphonic acid anions and rare earth cations, and the phosphonic acid anions are one or a mixture of hexamethylenediamine tetramethylene phosphonic acid radicals, diethylenetriamine pentamethylene phosphonic acid radicals and ethylenediamine tetramethylene phosphonic acid radicals; the rare earth cations are one or a mixture of Ce3+ and La3+. The antirust pigment has proper solubility at 25 DEG C, has a good antirust effect,and does not destroy the stability of the cathode electrophoretic paint emulsion. The invention also discloses a preparation method of the antirust pigment slurry. The obtained antirust pigment slurry can be effectively co-deposited with cathode electrophoretic paint.

The invention discloses chocolate popping beads, fruity sauce containing the chocolate popping beads and a preparation method thereof. The preparation method of the chocolate popping beads comprises the steps: 1, placing a popping bead wrapping skin solution is placed in a vibrating screen so that the popping bead wrapping skin solution circularly flows from the top of the vibrating screen to the bottom of the vibrating screen; and 2, dripping the blasting bead center liquid under the pressure of 0.02-0.08 bar, and condensing the blasting bead center liquid dripped into the blasting bead wrapping skin solution to form the popping beads. The preparation method of the fruity sauce comprises the following steps: S1, preparing a colloidal solution, namely preheating water to 70-80 DEG C, adding pectin and a sweetening agent, stirring and circulating at 1000-1400 rpm for 10-15 minutes, and cooling to 40-45 DEG C to obtain the colloidal solution; s2, adding the popping beads into the glue solution, uniformly stirring at 30-60 rpm, adding edible essence, adjusting the acidity, and adjusting the pH value to 3.7-4.2 so as to obtain a pre-prepared fruity sauce; s3, sterilizing and filling: sterilizing, cooling and filling the pre-prepared fruity sauce to obtain the fruity sauce. The chocolate popping beads are high in uniformity, the flavor of the popping bead center liquid is well released, and the fruity sauce can be used for normal-temperature yoghourt.

The invention relates to an emulsion heater comprising a shower nozzle, an emulsion heating system and an emulsion supply system; the emulsion heating system is arranged in the shower nozzle, and theemulsion supply system continuously supplies body lotion to the emulsion heating system. According to the emulsion heater in the invention, the shower hot water is skillfully utilized to automaticallyheat and keep the body lotion warm without the processes of sub-package, starting, cleaning container, and the like of a common emulsion heater, and convenience is brought to life.