18 results about "High activation" patented technology

The invention relates to a rare earth modified AB2 type solid hydrogen storage alloy and a batch preparation method thereof, belongs to the technical field of hydrogen storage alloy materials, and solves the problems of high activation condition, long activation period, overhigh hydrogen absorption platform pressure, high batch preparation smelting difficulty, low yield, unstable product quality and the like of the traditional Ti-Mn series hydrogen storage alloy in the prior art. The specific composition of the hydrogen storage alloy is Ti < 1.1-x-y > Y < x > Zr < y > Mn < 2.0-y-z-m > Cr < z > Ni < m > Co < n >, x, y, z, m and n in the formula are atomic ratios, x is larger than or equal to 0.01 and smaller than or equal to 0.04, y is larger than or equal to 0.10 and smaller than or equal to 0.35, z is larger than or equal to 0.45 and smaller than or equal to 0.70, m is larger than or equal to 0.1 and smaller than or equal to 0.2, and n is larger than or equal to 0.05 and smaller than or equal to 0.15. The hydrogen storage alloy has good activation performance and hydrogen absorption and desorption performance, the hydrogen storage capacity is larger than or equal to 1.86 wt.%, and the hydrogen absorption and desorption platform pressure can be adjusted according to application requirements; under the conditions that the temperature is 20 DEG C and the initial hydrogen pressure is 3 MPa, activation can be completed through one-time hydrogen absorption and desorption circulation; after 200 times of hydrogen absorption and desorption cycles, the capacity retention ratio of the alloy is gt; and 98%. The invention further provides a preparation method of the hydrogen storage alloy, the method has the advantages of being simple and easy to operate, high in yield, stable in product quality and the like, and the problem of component segregation of a casting process is fundamentally solved.

This invention provides a semiconductor device with a high activation rate for p-type impurities. [Solution] The method for manufacturing a semiconductor device comprises: a p-type layer formation step of forming a p-type layer 12 made of a group III nitride semiconductor doped with p-type impurities by MOCVD; an annealing step of performing an annealing treatment on the surface of the p-type layer 12 with at least a region contributing to the device operation exposed to activate the p-type impurities of the p-type layer 12; and an n-type layer formation step of forming an n-type layer (second n-type layer 13) made of an n-type group III nitride semiconductor on the p-type layer 12 by a formation method using materials that do not contain hydrogen in the raw materials and carrier gas.

This application relates to the field of memory, providing a refresh control circuit, a memory, and a refresh control method. The refresh control circuit includes a page table, a first comparison circuit, and a second comparison circuit. The page table is configured to store multiple row addresses and their activation counts. The first comparison circuit, connected to the page table, is configured to receive the currently active row address and its activation count, and compare the currently active row address and its activation count with the multiple row addresses and their activation counts stored in the page table. When a first preset condition is met, the currently active row address and its activation count are stored in the page table. The second comparison circuit, connected to the page table, is configured to compare the activation counts of the multiple row addresses in the page table and output the row address with the highest activation count as a candidate row address.

This invention relates to a Ti-Fe-Ce-Mn-Zr-Al-Co based hydrogen storage alloy and its preparation method, belonging to the technical field of hydrogen storage alloy materials. It solves at least one of the problems of high activation conditions, long activation cycles, and poor hydrogen absorption / desorption performance in existing TiFe hydrogen storage alloys. This invention provides a Ti-Fe-Ce-Mn-Zr-Al-Co based hydrogen storage alloy, characterized in that: the alloy's specific composition is Ti... 1.05 Ce 0.05 Fe 1.15‑x‑y‑z‑m Mn x Zr y Al z Co m Where x, y, z, and m are atomic ratios, and 0.1≤x≤0.25, 0.05≤y≤0.2, 0.02≤z≤0.1, 0.02≤m≤0.1. The hydrogen storage alloy exhibits excellent activation and hydrogen absorption / desorption properties, with a hydrogen storage capacity ≥1.70 wt.%, a hydrogen absorption plateau pressure ≥0.41 MPa, and a hydrogen desorption plateau pressure ≥0.31 MPa. It can be activated in a single step at 30°C and an initial hydrogen pressure of 3 MPa, making it suitable for widespread application as a solid-state hydrogen storage material in hydrogen fuel cells and other scenarios.

The invention discloses a vanadium-based hydrogen storage alloy capable of being activated at room temperature, a preparation method of the vanadium-based hydrogen storage alloy and application of Sm, belongs to the technical field of hydrogen storage materials, and aims at solving the technical problems that an existing vanadium-based hydrogen storage alloy is high in activation temperature and long in activation time. The vanadium-based hydrogen storage alloy capable of being activated at room temperature provided by the invention has a general formula of V < x > Ti < y > Cr < z > Fe < a + b wt% S < m >, x + y + z + a = 10, 7 < = x < = 8, 0.7 < = y < = 1.4, 1.0 < = z < = 1.6, 0.2 < = a < = 0.3, 0.005 < = b < = 0.010; wherein x, y, z and a are atomic ratios, and b is the mass percent of Sm in the vanadium-based hydrogen storage alloy. After the vanadium-based hydrogen storage alloy is vacuumized at the temperature of 40 DEG C for 3000 seconds, the vanadium-based hydrogen storage alloy absorbs hydrogen once under the hydrogen conditions of 40 DEG C and 8 MPa, and the vanadium-based hydrogen storage alloy can be completely activated.

The invention discloses a coal gangue microwave-chemical synergistic activation method and activated coal gangue, the coal gangue microwave-chemical synergistic activation method comprises the following steps: (1) crushing coal gangue to obtain a crushed product; (2) mixing the crushed product with a composite activator, and performing microwave treatment to obtain an activated product; the composite activating agent comprises waste alkali liquor, fly ash aluminum extraction residues and water glass; and (3) drying, cooling and grinding the activated product to obtain the activated coal gangue. The microwave-chemical synergistic activation method for the coal gangue is high in activation efficiency, efficient destruction of crystal lattices of coal gangue minerals is achieved through the synergistic effect of microwaves and the composite activating agent, the activation time is shortened, the silicon-aluminum dissolution rate is increased, the silicon dissolution rate reaches 80% or above, the aluminum dissolution rate reaches 70% or above, the problem that single chemical activation is low in efficiency is solved, and the method is suitable for industrial production. And the obtained activated coal gangue product has high activity.

The application relates to an easily-activated Ti-Fe-Y-Mn-Zr-Co-Zn-based hydrogen storage alloy and a preparation method thereof, and belongs to the technical field of hydrogen storage alloy materials. At least one of the problems in the prior art, such as high activation difficulty, long activation period, poor hydrogen absorption and desorption kinetic performance and the like of a Ti-Fe-based hydrogen storage alloy, is solved. The application provides an easily-activated Ti-Fe-Y-Mn-Zr-Co-Zn-based hydrogen storage alloy, and the chemical formula of the hydrogen storage alloy is Ti 1.15 Fe 0.8 Y 0.03 Mn 0.35‑x‑y‑ z Zr x Co y Zn z , wherein x, y and z are atomic ratios, and 0.05<=x<=0.15, 0.02<=y<=0.1 and 0.02<=z<=0.1. The Ti-Fe-Y-Mn-Zr-Co-Zn-based hydrogen storage alloy provided by the application has good activation performance and hydrogen absorption and desorption performance through component design and preparation process improvement, and can be activated at one time under the condition of 30 DEG C and 3 MPa, the hydrogen storage capacity is greater than or equal to 1.69 wt.%, the hydrogen absorption plateau pressure is greater than or equal to 0.39 MPa, and the hydrogen desorption plateau pressure is greater than or equal to 0.3 MPa.

The utility model discloses an efficient carbonized material activating device which comprises a microwave activating oven, a feeding hopper is fixedly communicated with the left side of the top of the microwave activating oven, vibration motors are symmetrically erected on the lower portion of the left side of the feeding hopper in a front-back mode, and a plurality of damping dampers are fixedly arranged between the vibration motors and the microwave activating oven in an annular array mode. The bottom output end of the vibration motor slidably extends into the microwave activation furnace and is fixedly connected with a frame plate, the bottom of the frame plate is fixedly connected with a fan-shaped screen, a through hole is formed in the center of the top of the fan-shaped screen, and carbonization materials and metal particle catalysts falling in a concentrated mode are continuously oscillated and scattered. And meanwhile, the vibration motor can improve the activity of the carbonized material and the metal particle catalyst on the fan-shaped screen and increase the interaction strength of the carbonized material and the metal particle catalyst, so that the activation rate of the carbonized material is increased, and the activation quality is improved.

This invention belongs to the field of hydrogen storage alloy technology, and discloses a vanadium-based solid solution hydrogen storage alloy with high activation performance and its preparation method. The general formula for hydrogen storage alloys is Ti. a Cr b V c Al1Si 0.5 A d In the formula, A represents a rare earth element, and a, b, c, and d represent weight percentages with the following numerical ranges: 11≤a≤18, 19≤b≤33, 40≤c≤60, and 6≤d≤13. The thickness of the metal oxide layer on the surface of the hydrogen storage alloy is 1-10 nm. The hydrogen storage alloy is prepared using a stepwise addition method of rare earth raw materials. The resulting vanadium-based solid solution hydrogen storage alloy can be activated at room temperature and possesses excellent hydrogen storage performance.

The application belongs to the technical field of circuit board production, and discloses a circuit board activation equipment and a circuit board production line. The circuit board activation equipment comprises an activation tank capable of containing activation liquid and a conveying mechanism for conveying the activated circuit board. In the conveying direction of the conveying mechanism, the middle section of the conveying mechanism extends to the bottom of the activation tank, so that the middle section of the conveying path of the circuit board conveyed by the conveying mechanism is below the liquid level of the activation liquid. The circuit board activation equipment and the circuit board production line provided by the application can make the liquid level of the activation liquid in the activation tank lower than the conveying surface of the whole equipment, ensure that the activation liquid in the activation tank is not easy to overflow, and thus it is not necessary to pump the activation liquid into the activation tank from the outside to maintain the liquid level height, the activation liquid in the activation tank can be maintained stable, compared with the prior art, the generation of bubbles in the activation liquid is effectively reduced, and the activation quality is improved.

The application discloses a non-target screening solid-phase extraction system and a screening method, and belongs to the technical field of pollutant treatment. The system comprises a plurality of solid-phase extraction columns and pH adjusting devices which are cross-connected. The pH adjusting devices are used for adjusting the pH value of the flowing water sample. The pH values adjusted by the plurality of pH adjusting devices are different. The types of the plurality of solid-phase extraction columns are different or the same. The application can meet the needs of non-target detection, and has the advantages of good enrichment effect, high enrichment efficiency, high activation and elution efficiency and the like.

The invention discloses an activation method and device for an NEG in an atomic clock air chamber, and relates to the technical field of atomic clocks.The activation method comprises the steps that a light beam control element is used for adjusting the light beam shape or the light beam output direction of laser emitted by a laser device, and a target laser beam is obtained; the target laser beam is controlled to be incident to the NEG in the atomic clock air chamber; collecting temperature data of the NEG under irradiation of the target laser beam; and monitoring the activation state of the NEG according to the temperature data so as to complete activation of the NEG. According to the method and the device provided by the invention, the NEG in the atomic clock air chamber is activated by adopting laser, so that the damage caused by punching and electricity leading on the atomic clock air chamber during electric activation is overcome, and the influence of baking activation on an air chamber shell is avoided. When the laser activates the NEG, the heat conduction direction in the air chamber of the atomic clock is from inside to outside, so that the NEG with higher activation temperature and stronger air suction capacity can be selected, and the vacuum degree in the air chamber can be better maintained.

The invention provides a formula of an AES and LAS compound concentrated detergent with high activation efficiency at low temperature, which comprises the following components in percentage by mass: 20-25% of fatty alcohol-polyoxyethylene ether sodium sulfate (AES); 18-22% of sodium linear alkyl benzene sulfonate (LAS); 5 to 8% of alkylphenol polyoxyethylene ether (AEO-9); 0.8 to 1.5 percent of sodium chloride (NaCl); and the balance of water. Wherein the mass ratio of AES to LAS is (1.1: 1)-(1.4: 1), and the total active matter content of the composition is greater than or equal to 40%; moreover, the composition does not contain a penetrant and a humectant. Through specific selection, accurate proportioning and synergistic effect of the components, the core technical problems of slow dissolution, easy gelation and poor decontamination efficiency of the concentrated detergent at low temperature are effectively solved, and high activation efficiency in low-temperature water is realized.

The present application relates to the field of wireless communication search and rescue, and particularly relates to a radio remote activation method, comprising the following steps: step 1, after a person is in distress, a distress device sends a distress alarm information, and enters a "sleep-work" mode; step 2, after the search device receives the distress alarm information, an activation instruction is sent to activate the distress device; step 3, the distress device receives the activation instruction, adjusts the working parameters of itself with the activation parameters in the activation instruction, and receives a communication instruction. The present application has higher activation efficiency and stronger universality by designing the remote activation instruction with multiple activation parameters; the corresponding activation parameters can be set by the user of the distress device and the user of the search device, and the search device can remotely and reliably activate the distress device; the activation instruction also has control parameters, which can increase the corresponding search and rescue command control ability.

The invention relates to a high-capacity and easy-to-activate Ti-Zr-La-Mn-Cr-(VFe) series AB2 type hydrogen storage alloy and a preparation method thereof, and belongs to the technical field of solid hydrogen storage alloy materials. The invention relates to a Ti-Zr-La-Mn-Cr-(VFe) series AB2 type hydrogen storage alloy and a preparation method thereof, solves the problems of high activation condition, long activation period, overhigh hydrogen absorption platform pressure, large batch preparation smelting difficulty, low yield, high raw material cost and the like of the traditional Ti-Mn based hydrogen storage alloy in the prior art, and provides the Ti-Zr-La-Mn-Cr-(VFe) series AB2 type hydrogen storage alloy, the specific composition of the alloy is Ti 1.05-x-y ZrxLayMn2-z-mCrz (VFe) m, x, y, z and m in the formula are atomic ratios, x is greater than or equal to 0.10 and less than or equal to 0.35, and y is greater than or equal to 0.20 and less than or equal to 0.30. X is more than or equal to 0.01 and less than or equal to 0.03, z is more than or equal to 0.40 and less than or equal to 0.90, m is more than or equal to 0.10 and less than or equal to 0.30, preferably, the ratio of x to y to z to m is 0.30: 0.02: 0.7: 0.15, and the hydrogen storage alloy has good activation performance, hydrogen absorption and desorption dynamic performance, cycle stability and hydrogen storage capacity gt; %, and hydrogen absorption and hydrogen desorption platform pressure can be adjusted according to application requirements; under the conditions that the temperature is 20 DEG C and the initial hydrogen pressure is 3 MPa, complete activation can be achieved through one-time hydrogen charging and discharging circulation, the circulation stability is good, and after 200-time hydrogen charging and discharging circulation, the capacity retention rate is S200gt; the hydrogen storage material can be widely applied as a solid hydrogen storage material.

The utility model relates to the technical field of concentration detection equipment, and particularly discloses PTH activation tank on-line concentration detection equipment which comprises a sliding assembly, an activation tank and a collecting pool are arranged on the two sides of the sliding assembly respectively, and a detection assembly is arranged on one side of the collecting pool. One side of the activation tank is connected with a first drainage pipe, a first metering pump is arranged on the first drainage pipe, a second drainage pipe is arranged on one side of the collection pool, and an electromagnetic valve is arranged on the second drainage pipe; the on-line concentration detection equipment for the PTH activation tank is simple in overall structure, reasonable in design and low in equipment maintenance cost, and workers can conveniently carry out on-line detection on the concentration of the PTH activation tank; through the design of the sliding assembly and the detection assembly, automatic operation of sample sampling and detection is realized, manpower time and manpower cost are saved, errors caused by manual sampling are avoided, the accuracy of a concentration detection result of a sample in the PTH activation tank is favorably improved, and the working efficiency of online concentration detection of the PTH activation tank is improved.

The invention discloses a heat treatment method of a vanadium-based hydrogen storage alloy, belongs to the technical field of vanadium-based hydrogen storage alloy processing, and aims to solve the problems that the vanadium-based hydrogen storage alloy is high in activation temperature and difficult to crush and powder. The invention provides a vanadium-based hydrogen storage alloy. The vanadium-based hydrogen storage alloy comprises the following chemical components in percentage by weight: 68-80% of V, 7-12% of Ti, 10-20% of Cr and 0-8% of (Fe + Zr + Mn). According to the method, one-step solid solution aging heat treatment is carried out in the hydrogen-argon mixed atmosphere in a specific proportion, and the microstructure and surface characteristics of the vanadium-based hydrogen storage alloy are synergistically acted, so that the problems of high activation temperature and difficult crushing and powder making are solved.

The application discloses a method for improving cementitious activity of waste glass powder by physical and chemical synergistic activation, and belongs to the field of building materials. The method aims to solve the problems of insufficient cementitious activity, low activation efficiency and unstable activation effect of waste glass powder. The method adopts a segmented feeding strategy to put waste glass and a chemical activator (any one of silica fume, nano-silicon dioxide, nano-titanium dioxide, calcite and alum) into a ball mill, adopts a four-stage matching grinding ball and a variable-speed intermittent process of "high-speed ball milling-stopping-moderate-speed ball milling", and significantly improves the cementitious activity of the waste glass powder through physical and chemical synergistic activation. The method has the characteristics of high activation efficiency, significant activity improvement and controllable process, and can be widely applied to resource utilization of waste glass powder.