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129 results about "Charge number" patented technology

Charge number (z) refers to a quantized value of electric charge, with the quantum of electric charge being the elementary charge, so that the charge number equals the electric charge (q) in coulombs divided by the elementary-charge constant (e), or z = q/e. The charge numbers for ions (and also subatomic particles) are written in superscript, e.g. Na⁺ is a sodium ion with charge number positive one (an electric charge of one elementary charge). Atomic numbers (Z) are a special case of charge numbers, referring to the charge number of an atomic nucleus, as opposed to the net charge of an atom or ion. All particles of ordinary matter have integer-value charge numbers, with the exception of quarks, which cannot exist in isolation under ordinary circumstances (the strong force keeps them bound into hadrons of integer charge numbers).

Titanium-based multi-metal oxide catalyst for removing diesel engine NOx by NH3-SCR in wide temperature window

The invention relates to a titanium-based multi-metal oxide catalyst for removing diesel engine NOx by NH3-SCR in a wide temperature window, belonging to the technical field of exhaust contaminant control on diesel engine tail gas. The catalyst uses nano TiO2 as a carrier, uses metal oxides V2O5, CeO2, MnO2 and Fe2O3 as main active components, and uses WO3 and MoO3 as catalyst promoter components, wherein the contents of the main active component in the catalyst respectively are as follows in percentage by weight: 48-84% of TiO2, 1-3% of V2O5, 5-15% of MnO2, 1-5% of CeO2, 1-5% of Fe2O3, 3-9% of WO3 and 5-15% of MoO3. The preparation process of the catalyst comprises the following steps: pre-activating the TiO2; and determining charge numbers of the metal oxide main active components and the catalyst promoters, and charging the metal oxide main active components and the catalyst promoters. By replacing high poisonous V oxides with Ce, Mn and Fe oxides, the invention reduces environmental hazard of the catalyst, greatly improves the low-temperature activation and the high-temperature selectivity, and effectively decreases NOx in the wide temperature window of 100-550 DEG C. The catalyst has high sulfur poisoning resistance and water poisoning resistance, and is suitable for high-sulfur diesel fuel and urban road conditions in China.
Owner:SHANGHAI JIAO TONG UNIV

Method for measuring partially coherent vortex light beam topological charge number

The invention discloses a method for measuring partially coherent vortex light beam topological charge number. A measured light beam passes through an imaging convex lens and then passes through a beam splitter to be divided into a transmission light beam and a reflection light beam, optical fiber scanning probes of two single-photon counters are respectively arranged at the centers of the transmission light beam and the reflection light beam, the position of a single-photon counter optical fiber probe is fixed, the position of the other single-photon counter optical fiber probe is regulated to perform point-by-point scanning measurement, correlation function values of the two beams on measuring position points are recorded, a spatial distribution image of a fourth-order correlation function is output through computer processing according to fourth-order correlation function relationship of partially coherent laguerre-gaussian beams, and the topological charge number of the beam to be measured is obtained through the number of dark rings on the image. The method is based on the fourth-order correlation function, a novel method for measuring the partially coherent vortex light beam topological charge number is provided, an adopted measuring device is simple in light path and easy to achieve, measuring method is simple, data processing is convenient, and result is reliable.
Owner:SUZHOU UNIV

Self-assembly method for high-load inorganic nano particle hybridized organic membrane

InactiveCN101905122AIncrease loadOvercome the defect of easy peelingSemi-permeable membranesFiltrationHigh load
The invention discloses a self-assembly method for a high-load inorganic nano particle hybridized organic membrane, which belongs to the technical field of membranes. The method comprises the following steps of: preparing membrane-forming solution from polycations and polyanions respectively, adding amphoteric oxide nano particles respectively, and adjusting pH values; performing ultrasonic treatment and centrifugation, and replacing solvents to prepare polyion nano particle envelope solution; impregnating a substrate or a basal membrane in the polyion nano particle envelope solution or performing dynamic filtration to form a membrane layer, and performing washing and blow-drying; impregnating the substrate or the basal membrane in the polyion nano particle solution loaded with opposite charges; performing the washing and the blow-drying; and repeating the membrane-forming, the washing and the blow-drying to form an inorganic nano particle hybridized polyelectrolyte membrane. The method has the advantages of hybridizing a polycation layer and a polyanion layer with the nano particles, improving the charge numbers of the nano particles in the double layers and effectively overcoming the defect of easy stripping of organic and inorganic layers of the prepared membrane during hybridization.
Owner:BEIJING UNIV OF TECH

Flight body angular velocity measurement method based on vortex light rotation Doppler effect

The present invention relates to a flight body angular velocity measurement method based on a vortex light rotation Doppler effect. The flight body angular velocity measurement method based on vortex light rotation Doppler effect is characterized in that according to the vortex light rotation Doppler effect principle, a vortex light generation system and a measurement system are placed on a flight body rotating shaft; firstly, the vortex light of which the orbital angular momentum topological charge number is 1 is generated according to a vortex light wave function and by utilizing a phase modulation method; the vortex light generation system and the synchronous rotation of a vortex light beam and a flight body induce an rotation Doppler effect, so that the vortex light carries the flight body motion information; a vortex light path is adjusted, the transmission direction of the vortex light path is changed, and the waveform of the vortex light is received and measured after the modulation and filtering; the flight body motion information carried by the vortex light is extracted by the waveform analysis, and the flight body angular velocity information is obtained by utilizing a vortex light rotation Doppler effect conclusion. The flight body angular velocity measurement method based on the vortex light rotation Doppler effect of the present invention belongs to the new concept gyro field in an inertial technology, and can be applied to the high-precision flight body angular velocity measurement.
Owner:PLA PEOPLES LIBERATION ARMY OF CHINA STRATEGIC SUPPORT FORCE AEROSPACE ENG UNIV

Electric current balancing method and system for multi-battery or multi-battery-pack parallel connection charging or discharging

The invention provides an electric current balancing method and system for multi-battery or multi-battery-pack parallel connection charging or discharging. The electric current balancing method and system are suitable for discontinuous currents, easy to implement and effective in implementation. The electric current balancing method and system comprise a plurality of parallel branches formed by a plurality of batteries or battery packs, each parallel branch comprises a battery or battery pack, a low-resistance switch passage and a voltage reduction component passage, and the low-resistance switch passages are connected with the voltage reduction component passages in parallel. When low-resistance switches are turned on, discharged or charged currents only flow through the low-resistance switch passages, the low-resistance switches are controlled by the pulse width adjustment to be turned on or turned off, and the discharged or charged currents of the batteries or battery packs are adjusted in real time; When the low-resistance switches are turned off, the currents only flow through the voltage reduction component passages, and voltage reduction components adjust the voltage, relative to other batteries or battery packs, of the batteries or battery packs. Balancing of the charged and discharged charge number of the multiple batteries or battery packs is achieved by a plurality of algorithms through time integrations, and the balanced control over the discharged current or the charged current when the multiple batteries or battery packs are charged and discharged in a parallel connection mode is achieved.
Owner:云储新能源科技有限公司

Nano carbon tube capacitive type touch screen and production and manufacturing method thereof

The invention relates to a nano carbon tube capacitive type touch screen and a production and manufacturing method of the nano carbon tube capacitive type touch screen. The structure comprises a cover plate layer, an OCA (Optically Clear Adhesive) optical adhesive layer and a nano carbon tube transparent conducting thin film layer, wherein a line layer is further arranged on the lower surface of the nano carbon tube transparent conducting thin film layer; an electrode layer is arranged at the periphery of the line layer; the electrode layer is used for leading out the line layer; in a working process, a low-voltage alternating-current electric field is formed in the nano carbon tube transparent conducting thin film layer; when a finger of a user touches the surface of the nano carbon tube capacitive type touch screen, a coupling capacitor is formed between the finger and the nano carbon tube transparent conducting thin film layer; meanwhile, a certain number of charges are transferred to a human body; in order to recover charge loss, the charges are supplemented from four corners of the nano carbon tube capacitive type touch screen; the charge number supplemented in each direction is proportion to the distance to a touch point so that the position of the touch point can also be calculated.
Owner:深圳市航泰光电有限公司 +1

Scheduling method of cluster type DC charging system of reconfigurable annular bus

The invention relates to a scheduling method of a cluster type DC charging system of a reconfigurable annular bus, and belongs to the field of power and electron technologies and new energy automobilecharging infrastructures. The main application object of the scheduling method is a reconfigurable annular bus based cluster-type DC charging station; a vehicle entering the charging station is guided by the scheduling system so as to enter a reasonable parking space, so that the maximum advantage of the reconfigurable annular bus is played and efficient distribution of the charging power is realized. Meanwhile, when the concurrent charging number is big and the DC charging demands of all the connected electric vehicles cannot be met, the scheduling method automatically adjusts and reconstructs a bus section which is composed of multiple segmental buses based on the priority by adopting a translation reconfiguration algorithm, realizes optimal combination of charging modules and optimal power distribution. The scheduling scheme is combined with the reconfigurable annular bus; and compared with the existing technologies such as charging pile and flexible charge, the scheduling method can greatly reduce the number of linked switches and the system complexity.
Owner:ELECTRIC POWER SCI RES INST OF GUIZHOU POWER GRID CO LTD

Device for generating vortex light field

The invention is suitable for the technical field of optics and provides a device for generating a vortex light field. The device comprises a vortex light generating system, a pumping light generating system, a non-collinear optical parameter amplifier and a mode recording analyzing system, wherein a narrow band vortex light beam enters into the non-collinear optical parameter amplifier so as to form a narrow band vortex signal light; a broadband pumping light enters into the non-collinear optical parameter amplifier and pumps the narrow band vortex signal light so as to trigger triple-wave coupling nonlinear conversion and generate an idler frequency light with a broadband vortex light field; the idler frequency light and the narrow band vortex signal light have reciprocal relation at the aspect of topological charge number; the idler frequency light is analyzed and recorded through the mode recording analyzing system. According to the invention, the broadband pumping light enters into the non-collinear optical parameter amplifier and pumps the narrow band vortex signal light so as to trigger triple-wave coupling and acquire the idler frequency light; the narrow band vortex is converted to the broadband vortex; the wavelength and frequency conversion can be realized; the problems of narrow bandwidth and few frequencies of the traditional vortex light beam are solved; the application requirement of the broadband vortex light is met.
Owner:SHENZHEN UNIV

Compound spoil-retaining wall with holes for tundish and preparation process thereof

The invention relates to a compound spoil-retaining wall with holes for a tundish and a preparation process thereof. The compound spoil-retaining wall comprises a spoil-retaining wall body arranged on a proper position of the tundish and a mosaic; the mosaic is arranged on the spoil-retaining wall body; and the center of the mosaic is provided with steel flowing holes. The preparation process comprises the following steps: casting the spoil-retaining wall body by an aluminum magnesium or aluminum silicon or high aluminum or magnesium or magnesium aluminum material, and casting the mosaic by a corundum material; and curing the two casting materials with moulds after initial setting for 24h, demoulding, naturally curing for 12 to 24h, assembling and baking. The compound mosaic spoil-retaining wall for the tundish, on the basis of slightly increasing the cost of materials, further prolongs the service life of the steel flowing holes, avoids the change of the flow field of the tundish caused by early deformation due to the scouring of tapping holes in the using process, and has important functions of ensuring the synchrony of the service life of the spoil-retaining wall body and the steel flowing holes, further improving continuous casting charge number and molten steel quality, reducing inclusion and uniformizing the molten steel temperature of the tundish.
Owner:SHANDONG IRON & STEEL CO LTD

High-precision digital speckle related measurement method

A high-precision digital speckle related measurement method adopts a measuring device consisting of a CW (continuous wave) laser, a collimated beam expander, a converging lens, a CCD (charge coupled device) camera and a computer for measurement, and is realized through adopting the following steps: filtering speckle images arranged in a generation plane of a to-be-tested object before and after the displacement and recorded by the CCD camera, so as to obtain the complex signal distribution of light intensity; performing interpolation after analyzing the phase position distribution, so as to obtain the phase position distribution matrix with the sub-pixel accuracy; utilizing the phase position vortex topological charge numbers plus 1 and minus 1 to replace the original phase position values, and replacing other points with 0, so as to build two sparse matrixes; and finally performing related operation to the two sparse matrixes so as to obtain the in-plane displacement information of the to-be-tested object. The method can realize the high computational efficiency and high measuring accuracy at the same time, has the characteristics of compactness in optical path, simplicity and feasibility, and is suitable for the real-time and on-line detection in the field of photoelectric nondestructive detection.
Owner:HENAN UNIV OF SCI & TECH

Method and system for measuring complex coherence degrees of partially coherent vortex light beams

The invention discloses a method and a system for measuring complex coherence degrees of partially coherent vortex light beams. The method includes recording the light intensity of the to-be-measuredpartially coherent vortex light beams; introducing disturbance with cubic different phase assigned values into the to-be-measured partially coherent vortex light beams; carrying out Fourier transformation on the disturbed to-be-measured partially coherent vortex light beams and recording the light intensity of Fourier planes under the conditions of the cubic different phase assigned values; carrying out inverse Fourier transformation according to the cubic different phase assigned values and the light intensity of the Fourier planes under the conditions of the cubic different phase assigned values to obtain cross-spectrum density functions of the to-be-measured partially coherent vortex light beams; acquiring the complex coherence degrees of the to-be-measured partially coherent vortex light beams by the aid of the cross-spectrum density functions and the light intensity of the to-be-measured partially coherent vortex light beams. The method and the system have the advantages that coherent singular points can be directly observed from phase distribution graphs of the complex coherent degrees, accordingly, topological charge number magnitude and positive-negative information of theto-be-measured partially coherent vortex light beams can be obtained, and the method and the system have important significance in the fields of laser processing, optical tweezers, atom cooling and the like.
Owner:SUZHOU UNIV

Hydrotalcite acid acceptor for polyolefin

The invention discloses a hydrotalcite acid acceptor for polyolefin. The hydrotalcite has a structural formula [Mga(1-x) <2+>Ca(1-a)(1-x)<2+>Alx<3+>(OH)2]<x+>(A<n->)x/n.yH2O, wherein A<n-> is an interlayer negative ion, n is the charge number of the interlayer negative ion and is equal to 1-7; x is the ratio of the amount of substance of Al<3+> to (Ca<2+>+ Al<3+>) and has a value range of equal to or greater than 0.2 and less than or equal to 0.33; a is the ratio of the amount of substance of Mg<2+> to (Mg<2+>+ Ca<2+>) and has a value range of equal to or greater than 0 and less than or equal to 1; and y is the number of water of crystallization and has a value range of equal to or greater than 0 and less than or equal to 2. By adopting hydrotalcite as a clean polyolefin talc acid acceptor, chlorine ions can be effectively absorbed and fixed by virtue of the layered structure and the porous structure of hydrotalcite and by virtue of intercalation modification of the organic acid negative ion, the dispersity of hydrotalcite in the resin can be increased; by adjusting and controlling the laminate structure and interlayer negative ion, the different application requirements can be met and meanwhile, hydrotalcite is hardly precipitated in the resin, the corrosion of metal stearate acid acceptor residues to a production device is eliminated and the acid acceptor is low in toxicity and environment friendly and is in line with the requirements of the current environment-friendly production.
Owner:BEIJING UNIV OF CHEM TECH

Direct-current microgrid coordination and control method including electric automobile charging and discharging management

The invention discloses a direct-current microgrid coordination and control method including electric automobile charging and discharging management. The method comprises steps of: firstly determining features of constitutional units in a direct-current microgrid, wherein the features comprise the power P1 of an access power supply, the total power P2 of a distributed power supply, the power P3 of an energy storage system, the total power P4 of loads, the rest capacity SOC of the energy storage system, the controllable range of the charging power of a charging pile, and the number N of the charged electric automobiles, and determining that the maximum charging capacity of the electric automobiles is P1+P2+P3+P4; and then according to the relation between the (P1+P2+P3+P4)/N, the minimum charging power and the maximum charging power, controlling the charging and discharging of the energy storage system, thereby increasing charging number or speed of an electric automobile charging station. According to the invention, through the energy storage system and the distributed charging, additional charging capacity used for electric automobile charging is increased and the number of rapidly charged electric automobiles is increased.
Owner:YANGZHOU POWER SUPPLY CO OF STATE GRID JIANGSU ELECTRIC POWER CO +4

Charging prompting method and mobile terminal

The invention provides a charging prompting method and a mobile terminal, and relates to the technical field of mobile terminals. The method comprises the steps that the current environment temperature is determined when the detection result indicates that the mobile terminal is currently in the charging state; when the environment temperature meets the preset abnormal temperature condition, the abnormal charging number of times under the preset abnormal temperature condition from the first time of charging and the total number of times of charging are determined; the first proportion of the abnormal charging number of times in the total number of times of charging is determined; and when the first proportion meets the first preset proportion condition, prompting information used for indicating the charging temperature abnormity is displayed. When the mobile terminal is in the charging state, the environment temperature is abnormal and the proportion of the abnormal charging number oftimes in the total number of times of charging is high, the user can be prompted and the user is enabled to perform charging under the appropriate temperature so that the user can be guided to changethe charging habit, the hardware loss of the battery can be reduced, the aging speed of the battery can be alleviated and the battery life can be prolonged.
Owner:VIVO MOBILE COMM CO LTD

Reactive power partition method based on reactive power source-charge numbers and community mining

The invention provides a reactive power partition method based on reactive power source-charge numbers and community mining and belongs to the technical field of power system automation. Basic parameters are input through programs by means of a computer, then a power system reactive equivalent lossless network is determined, then reactive power, reactive source-charge numbers and reactive coupling modularity of all power transmission routes in a power system are determined, the optimal reactive voltage partition of the power system is determined by means of the traditional genetic algorithm, and finally the partition reactive coupling degree and the reactive balance degree of the optimal partition scheme are inspected. The method has the advantages that in the reactive voltage partition process, influences of reactive power output by a reactive power source on reactive loads through the transmission routes between reactive source-load node pairs are taken into consideration, reactive coupling performance of reactive source-load nodes in partitions can be strong, reactive coupling performance of the reactive source-load nodes between the partitions can be weak, and on the basis that reactive balance in the partitions is guaranteed, global optimality of the partitions is ensured from the perspective of reactive transmission. The method can be widely used in the reactive voltage partitions of the power system and provides scientific bases for reactive voltage control of the power system.
Owner:CHONGQING UNIV
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