74results about How to "Overcome the disadvantage of instability" patented technology

The invention discloses a method for manufacturing a positive pole plate of a lithium-ion capacitor, comprising the following steps: 1) coating size containing super capacitor active materials on an aluminum foil current collector, and drying; 2) coating positive pole size of a lithium ion battery on the aluminum foil current collector containing super capacitor active materials; and 3) drying, cold pressing, drying again, cutting into pieces and stripping to prepare the positive pole plate of the lithium-ion capacitor. The method for manufacturing positive pole plates of lithium-ion capacitors is easily operated, overcomes the shortcomings of unstable size when the positive pole materials of the lithium ion battery and the active materials of the super capacitor active materials are mixed, and is easy for batch production. In addition, the invention also discloses the positive pole plate of a lithium-ion capacitor and the lithium-ion capacitor using the same.

The invention provides a sulfide solid electrolyte based on oxygen doping. The sulfide solid electrolyte is prepared from the chemical ingredients, in percentage by mass: 36-60% of lithium sulfide orlithium selenide, 18-48% of phosphorus pentasulfide or phosphorus selenide, 1-23% of metal oxide or specific nonmetallic oxide and 8-37% of lithium chloride, lithium bromide or lithium iodide. The preparation method of the sulfide solid electrolyte mainly comprises the steps that the raw materials are sufficiently blended and subjected to tabletting, then placed in a quartz tube to be burned and sealed, the product is placed in a muffle furnace and heated to be 400-600 DEG C at a slow heating rate, the optimal heating rate is 0.3 DEG C/minute, heat preservation is conducted for 12-48 hours, and then the product is cooled to reach the room temperature; and the product is ground to be powder, and the sulfide solid electrolyte based on oxygen doping is prepared. The sulfide solid electrolyteis easy to prepare and high in repeatability, the prepared solid electrolyte has the high ionic conductivity and good stability to the air and positive and negative electrodes.

The invention discloses an image perceptual hashing method based on two-sided random projection, which mainly solves the problem of quick searching of massive image data. The method comprises the following steps of (1) preprocessing original image data; (2) obtaining a two-sided random projection matrix; (3) carrying out low-rank approximating; (4) updating a low-rank matrix; (5) judging if the number of iteration times of the updated low-rank matrix is maximum or not; (6) grouping projection vectors; (7) orthogonalizing the projection vectors; (8) obtaining hashing codes; (9) obtaining a hamming distance; and (10) outputting test results. The hashing method has the advantages that the better projection vector can be obtained, the effective hashing codes can be obtained, the memory consumption is reduced, the searching time is saved, the comprehensive performance of precision ratio and recall ratio of image searching can be improved, and the hashing method is applied to the image searching services of electronic businesses and mobile terminal equipment.

The invention discloses an intelligent energy-saving system for controlling the wireless internetworking of office building environment, which comprises a central controller and area control subsystems. End control equipment is arranged in each area control subsystem; the central controller is connected with a wireless coordinator; each end control equipment is in signal connection with a wireless routing controller which is in signal connection with the wireless coordinator; and the end control equipment, the wireless routing controller and the wireless coordinator are all based on a ZigBee communication protocol and meet IEEE802.15.4 standard. The intelligent energy-saving system solves the technical problem that a relatively larger measurement and control network cannot be formed in a conventional wireless control system, also solves the problems of the high power consumption, low rate and high cost of the conventional building intelligent control system, ensures that manual control is effective when equipment communication or control is at fault and avoids the paralysis of the whole system.

The invention discloses a mixed model judgment based crystallizer breakout predication method. The mixed model judgment based crystallizer breakout predication method comprises the following steps of:1) acquiring real-time temperatures of thermocouples inside a crystallizer, and sending the real-time temperatures to a computer terminal; 2) correcting the acquired temperature values and modelling,and converting the temperature values into an DIB image to store; 3) performing discretization on the DIB image, and obtaining crystallizer temperature fields through a thermal imaging system; 4) performing image identification and classification on a temperature field distribution image, and judging whether the temperature of each thermocouple of the crystallizer is normal or not; and 5) comprehensively judging whether the temperature has anomaly or not, and judging the anomaly reasons according to the image identification results and the results of a comprehensive expert system, thereby predicating whether a crystallizer breakout phenomenon appears or not. The mixed model judgment based crystallizer breakout predication method realizes accurate predication and warning of crystallizer breakout during continuous-casting production, and improves quality of continuously cast slabs.

An unmanned lunar ascender launch base stabilizer suitable for complex conditions comprises a launch base, upper sections and lower sections of supporting legs, trust reversers and supporting feet. The launch base is a platform, and the upper surface of the launch base is provided with a lunar lander upgrader. The lower section of each supporting leg is a T-shaped cylinder sleeved in the upper section of each supporting leg. The upper section of each supporting leg is connected with the lower surface of the launch base. The trust reverser is arranged outside the lower section of each supporting leg. Each supporting foot is connected with the lower section of each supporting leg through a spherical hinge. The trust reversers are four small solid rocket engines and are respectively arranged outside the lower sections of the four supporting legs. Each supporting foot is disc-shaped and connected with the lower portion of each supporting leg through the spherical hinge. By the adoption of the trust reversers and the trust generated from the trust reversers, the launch base is pressed against the lunar surface, so that the defect that the launch base is unstable when the lunar lander upgrader is ignited to take off in bad conditions is overcome, and stability of the lunar lander upgrader when ignited to take off is guaranteed.

The invention belongs to the field of light-emitting diode (LED) driving circuits, and discloses a step-down LED driving circuit which comprises a power supply, a filter unit, a constant current unit and an LED, wherein the filter unit is electrically connected between the power supply and the constant current unit, and the constant current unit supplies constant current to the LED. According to the circuit, the design is simple and reliable, the current of an LED lamp group can be designed only by changing the value of voltage sampling resistance R2, and the circuit is simple, convenient, stable and reliable.

The invention provides an oral liquid preparation of pidotimod, which can promote immunoreaction of a human body, effectively reduces times and degree of treating acute attack of bacteria or virus induced infection, shortens the course of the disease, can serve as an auxiliary medicine of antibiotic during acute infection and belongs to the field of medicines. The oral liquid preparation comprises the pidotimod, a chemical stabilizer, a pH regulator, a flavoring agent and the like, wherein trihytdroxy methyl-aminomethane serves as the pH regulator; and stability of the solution can be effectively improved through quantitative proportion and synergistic effect of each ingredient. The oral liquid preparation has stable quality, is convenient to store for a long time and is particularly suitable for old people or children to take.

The present invention belongs to the field of chemical drug preparations and particularly relates to sotalol hydrochloride powder injection for injection and a preparation method thereof. The sotalol hydrochloride powder injection comprises sotalol hydrochloride, chitosan nanoparticles and a PH (power of hydrogen) adjusting agent, wherein the chitosan nanoparticles adopted can significantly shorten the redissolving time of the sotalol hydrochloride, and improve the dissolution rate of the sotalol hydrochloride in injection. The sotalol hydrochloride provided by the invention has the advantages of good redissolving effect, more stable quality, high safety, high reliability, good convenience in transportation, and good application to industrial production, and the like.

The invention discloses a natural gas hydrate density measuring device, which comprises a hydrate reaction kettle system, a constant pressure system, a gas source system and a low-temperature constant-temperature bath, wherein the hydrate reaction kettle system is used for synthesizing the natural gas hydrate and measuring the volume of a sample; the constant-pressure system is communicated with a hydrate reaction kettle through a first pressure resistant pipeline, and is used for regulating the gas pressure in the hydrate reaction kettle; the gas source system is connected with a first pressure resistant pipeline arranged between the hydrate reaction kettle system and the constant-pressure system through a second pressure resistant pipeline, and is used for performing vacuum pumping or providing reaction gas for the hydrate reaction kettle system and the constant-pressure system; the low-temperature constant-temperature bath comprises a low-temperature constant-temperature system; a positioning support frame is arranged in the low-temperature constant-temperature system, and the low-temperature constant-temperature system is provided with a sealed space. The hydrate reaction kettle and the constant-pressure system are fixedly arranged on the positioning support frame, and are integrally positioned in the low-temperature constant-temperature bath. The device provided by the invention belongs to a solid density measuring device for high-pressure and low-temperature in-situ measurement of solid of gas-liquid reaction products of natural gas hydrate and the like; the adjustable pressure and temperature in the high-pressure and low-temperature state can be realized; the density features of solid substances under different confining pressure conditions can also be tested.

The present invention relates to a compound medicine for external application for curing acne and its preparation method. Its composition contains the following two active components: (wt%) 0.01-2% of tretinoin and 0.25-5% of antimicrobial. Said compound medicine can be made into liniment or anhydrous ointment, and has the following therapeutic functions, dissolving keratotic plug, regulating keratosis, resisting microbe, relieving inflammation and reducing secondary factor of sebaceous secretion, so that it can obtain obvious therapeutic effect.

The invention discloses an electric synthesizing method of polyaniline. The electric synthesizing method is characterized by comprising the following steps of S1. ultrasonically washing conducting glass for 15min respectively in distilled water, absolute ethyl alcohol, acetone, absolute ethyl alcohol and distilled water so as to remove the surface impurities, and naturally drying the conducting glass; S2. placing the conducting glass into an electrolytic tank, scanning the conducting glass at a constant scanning speed by utilizing a cycling voltammetry, and adopting the mixed solution of 0.5mol/L HCL and 0.5mol/L aniline as electrolyte; S3, rapidly transferring a working electrode aggregating the polyaniline into the distilled water, and washing the working electrode with the distilled water to remove the residual acid radical ions and aniline monomers; and S4. standing the polyaniline working electrode under the condition of 10 DEG C for 24h to be dried. The electric synthesizing method has the advantages that the synthesized polyaniline film is stable in structure, and the good electric performance can be maintained, and the instability defect of the electrode caused by the adhesion can be overcome.

The invention relates to a constructing method of a standard sample in Alexandrium catenella (A.catenella) fluorescence quantitative polymerase chain reaction. A recombinant plasmid is constructed by extracting DNA of A.catenella ACDH01, amplifying 18S rDNA of A.catenella ACDH01 to a 28S rDNA gene segment through polymerase chain reaction, and connecting an amplified product with a T carrier; the confirmed recombinant plasmid is diluted into a polymerase chain reaction standard sample in a gradient way; real-time polymerase chain reaction is carried out by using 5.8S-b5' and 5.8S-b3' as primers and a recombinant plasmid standard sample as a template; and a standard curve is prepared according to a clinical circulating number in the reaction and the log value of the gradient concentration of the recombinant plasmid standard sample. The recombinant plasmid real-time polymerase chain reaction standard sample with 18S rDNA-28S rDNA gene segments of the A.catenella ACDH01 is established; and the real-time polymerase chain reaction detection is accurately, efficiently and rapidly carried out on A.catenella ACDH01 to be tested by adopting a pair of universal primers.

An indicator capable of rapidly determining steam boiler feedwater hardness is characterized by being prepared by the following components in parts by weight: 52-57 parts of sodium chloride, 15-20 parts of sodium carbonate, 26-31 parts of sodium bicarbonate, 0.13-0.15 parts of disodium ethylene diaminetetraacetate and 0.18-0.20 part of eriochrome black T. The components of the indicator do not contain crystal water, therefore the indicator is stable in property and not prone to deliquescence and overcomes the defect that the disodium hydrogen phosphate and sodium dihydrogen phosphate contain lots of crystal water, thus being prone to deliquescence. The invention adopts the eriochrome black T as the color indicator, thus overcoming the defect that the color indicator is unstable when the ratios of acid chrome blue K and naphthol green B misfits each other when the KB indicator is adopted. The indicator is simple in production process, low in raw material cost and rapid and convenient in detection.

The invention discloses a valve-type anti-blocking printer nozzle component which comprises a nozzle, a feed throat pipe, a heater and a threaded mechanism, and further comprises a silk material valve, wherein the feed opening of the nozzle is communicated with the discharge opening of the feed throat pipe; the heater is arranged outside the nozzle, and is in tight contact with the heated area of the nozzle; the nozzle, the feed throat pipe and the heater are all fixedly connected with one another through the threaded mechanism; a leak-proof step is formed at the transitional part between the nozzle and the feed throat pipe; the threaded mechanism, through which the nozzle and the feed throat pipe are fixedly connected with each other, is arranged on the inner wall of the upper part cavity of the nozzle; a reversed threaded mechanism is correspondingly arranged on the outer wall of the feed throat pipe; the thread of the threaded mechanism extends out of the feed opening of the nozzle; the silk material valve is arranged near the joint of the feed throat pipe and the nozzle; when the heater stops heating, the feed throat pipe is closed by the silk material valve. The valve-type anti-blocking printer nozzle component is high in leak prevention and anti-blocking performance, sturdy and durable.

The invention discloses a frequency-conversion phase-modulating signal instrument, comprising a signal input interface, two signal output interfaces, a frequency-conversion circuit module and a phase-modulating circuit module and the like, wherein one signal output interface is directly connected with the signal input interface, and the other signal output interface is connected with the signal input interface after being connected with the phase-modulating circuit module and the frequency-conversion circuit module respectively. The frequency-conversion phase-modulating signal instrument is characterized in that the frequency ratio and the phase difference of two output signals of the frequency-conversion phase-modulating signal instrument can be adjusted, stable lissajous figures at different frequency ratios and different phase differences can be observed from an oscilloscope. The frequency-conversion phase-modulating signal instrument has the advantages that the defect of unstable lissajous figures in the original experiment is overcome, the effect of the experiment is improved, and the more practical and convenient effects are achieved.