15results about How to "Improve dynamic properties" patented technology

The invention discloses a mesoporous electro-adsorption defluorination positive electrode material rich in defects after vulcanization reconstruction, which is prepared by the following steps: preparing a bismuth-doped and defect-rich mesoporous carbon material, including ultrasonic vibration stirring, hydrothermal treatment in an organic environment, nitrogen atmosphere annealing and secondary hydrothermal treatment in which sulfur participates; the electro-adsorption positive electrode material belongs to a sulfur-modified bismuth-containing mesoporous synergistic platform embedded in a carbon shell, and has the defects of a nano frame with strong pore accessibility and high density; the synergistic process comprises double-electric-layer capacitive adsorption and reversible oxidation-reduction conversion. The nanometer configuration reduces the dependence on slow diffusion, reduces the activation energy barrier, and shows high redox activity. The electrode prepared by the method has a unique mesoporous framework, a large number of defluorination sites are obtained on the surface of the electrode, a rapid ion storage behavior mainly based on a capacitance control process is realized on a solid-liquid interface, fluorine-containing substances in water can be effectively separated in an electro-adsorption system, and the method is a pollution control process with a clear mechanism.

The present disclosure provides a continuous casting mold vibration method, device, equipment and storage medium, wherein the method comprises: obtaining a vibration period, and dividing the vibration period into two period intervals; for any period interval, determining an interval waveform function of the period interval; wherein the interval waveform function is a parabolic waveform function; according to each interval waveform function, controlling a driving device, so that the continuous casting mold performs a vibration process matched with the interval waveform function under the action of the driving device. The technical scheme provided by one or more embodiments of the present disclosure has the advantages of clear waveform function formula parameters, convenient solving, and good kinetic characteristics, while ensuring the quality and performance of the casting.

The utility model discloses a river water condenser and ship, this river water condenser includes the casing, is equipped with circulating water import and circulating water export on the casing, and circulating water import and circulating water export all are linked to the shell inner chamber, and the casing both ends are connected with front end cover and tail end cover respectively, and the water inlet and water outlet are in parallelly arranged on the front end cover, and the cooling pipe is equipped in the casing, and the cooling pipe includes cooling inlet pipe and cooling outlet pipe, and the cooling inlet pipe is linked to the water inlet, and the cooling outlet pipe is linked to the water outlet, and the tail end cover is equipped with the self -cleaning mechanism, adopts the river water condenser of the utility model, and heat exchange effect is good, and the pipeline is few and is long in service life.

The utility model belongs to the field of gas flow metering, and particularly relates to a gas flow metering device. The gas flow metering device comprises a cover body, a shell, a rectification part and a metering assembly, an opening is formed in the shell, the cover body covers the opening and forms an inner cavity, a flow passing opening is formed in the rectification part, the rectification part divides the inner cavity into a gas inlet cavity and a rectification cavity, the gas inlet cavity and the rectification cavity are communicated through the flow passing opening, and the metering assembly comprises a gas flow inlet. And the airflow inlet and the overflowing opening are staggered. According to the gas flow metering device, the reasonable layout of the rectification part and the staggered arrangement of the rectification part and the gas flow inlet act together to reduce the pressure loss of the gas flow in the metering process, so that the overall gas flow transmission efficiency and the metering accuracy are improved.

The invention belongs to the technical field of lithium ion batteries, and discloses a high-voltage lithium cobalt oxide lithium ion battery non-aqueous electrolyte and a lithium ion battery. The high-voltage lithium cobalt oxide lithium ion battery non-aqueous electrolyte comprises a non-aqueous organic solvent, an electrolyte lithium salt and an additive, wherein the additive comprises a conventional additive and a cyanogen additive with a structure as shown in a formula I or a formula II. The cyanide additive in the electrolyte can form a positive electrode film and inhibit dissolution of metal ions in a positive electrode material, and meanwhile, an N element in cyano in the additive contains lone electron pairs which can chelate cobalt ions dissolved out of the positive electrode material, so that the metal ions are prevented from being migrated to a negative electrode graphite interface to catalyze reductive decomposition of the electrolyte; meanwhile, other functional groups contained in the additive can also participate in negative electrode film formation, so that the dynamic characteristics and thermodynamic characteristics of a passive film are improved, and the electrochemical performance of the lithium ion battery is improved.

The application relates to a sodium titanate nanofiber / reduced graphene oxide composite electrode material and a preparation method and application thereof. The composite electrode material has a two-dimensional sheet structure, the particle size is 1-6 mu m, the thickness is 10-20 nm, is composed of a few-layer reduced graphene oxide and sodium titanate nanofibers with a diameter of 5-10 nm loaded on the reduced graphene oxide, and is prepared by taking the few-layer reduced graphene oxide as a template, uniformly loading titanium dioxide particles, and then carrying out hydrothermal treatment in an alkali solution. Compared with the prior art, the synthesis method is simple in process, easy to scale up, and high in controllability. As a negative electrode of a sodium ion battery or a positive electrode of a sodium battery, the sodium titanate nanofiber / reduced graphene oxide composite electrode material has the advantages of high initial coulomb efficiency, low working voltage, high capacity, excellent rate characteristics and cycle stability, and has a broad market application prospect.

The application of the invention relates to an atorvastatin calcium derivative and a preparation method thereof, the developed novel atorvastatin derivative realizes multiple optimization through molecular design: fluorine atoms are introduced at para-positions of aromatic rings, and the metabolic stability is improved by utilizing high bond energy of C-F bonds and strong electronegativity of the fluorine atoms; a phosphate group is introduced, so that the oral bioavailability is improved by 30-40%. The synergistic effect of fluorine atoms and phosphate groups optimizes the combination with HMG-CoA reductase, and the combination energy is improved by about 15%. Through structural modification, the logP value is reduced from 5.7 to 4.5, and the water solubility is improved. The new derivative not only improves the enzyme inhibition activity by 20-30%, but also can bring additional treatment advantages through multi-target action, and provides a better treatment choice for patients with hyperlipidemia.

The application discloses a high-entropy oxide loaded lanthanum ferrite gas-sensitive material and a preparation method and application thereof, and comprises the following steps: preparing lanthanum ferrite powder; dispersing the lanthanum ferrite powder in water, adding citric acid, and then performing ultrasonic treatment under ice water bath conditions to obtain a surface-modified base suspension liquid; under ice water bath and stirring conditions, dropping a high-entropy complex mother liquor into the base suspension liquid, then adding urea, and performing hydrothermal reaction to obtain a precipitate; washing and drying the precipitate, and then performing stepwise temperature increasing calcination in air. The sensor prepared from the gas-sensitive material has a low baseline resistance of 11 MΩ at an optimal working temperature of 180 DEG C, a response degree of 45.24 to 50 ppm of acetone, and an optimal working temperature which is reduced by 75 DEG C than that of a pure LaFeO3 sensor; the response and recovery times are shortened to 23.38 seconds and 8 seconds respectively, and the sensor exhibits excellent kinetic characteristics.

The invention is applicable to the technical field of building machinery, and provides prefabricated part hoisting equipment and a control system, and the prefabricated part hoisting equipment control system comprises a counterweight control module, a dynamic state observation module, a control module and a control module, and is characterized in that the counterweight control module is connected with the dynamic state observation module; the processor is configured to process the initial height, the real-time swing amplitude, the real-time swing angular velocity and a preset stable threshold value based on a preset counterweight lowering distance control model so as to generate and output a target lowering distance of the counterweight mechanism; wherein the target lowering distance is used for driving the executing mechanism to adjust the vertical position of the balance weight mechanism on the lifting rope so as to restrain swinging of the prefabricated part in the lifting and moving process. According to the prefabricated part hoisting equipment control system, the counterweight control module can be tightly matched with the dynamic state observation module, and fine and self-adaptive adjustment of the position of the counterweight mechanism is achieved through real-time and accurate swing data provided by the counterweight control module.

The invention discloses a bismuth ferrite-barium titanate based lead-free energy storage relaxor ferroelectric ceramic material and a preparation method and application thereof, and relates to the technical field of functional materials, the chemical formula of the bismuth ferrite-barium titanate based lead-free energy storage relaxor ferroelectric ceramic material is (1-x) (0.67 BiFeO3-0. 33 BaTiO3)-xCa0. 7La0. 2TiO3, x = 0.25-0.40, and x represents the mole fraction. According to the preparation method, BF-BT lead-free relaxor ferroelectric ceramic is taken as a raw material, a linear dielectric Ca0. 7La0. 2TiO3 is introduced into BF-BT lead-free relaxor ferroelectric ceramic in a third component solid solution mode, a brand-new multi-component solid solution lead-free energy storage relaxor ferroelectric ceramic material: (1-x) (0.67 BiFeO3-0. 33 BaTiO3)-xCa0. 7La0. 2TiO3 is synthesized by adopting a traditional solid-phase reaction method, and the purpose of improving energy storage and mechanical properties is achieved.

The invention discloses a sensor metal diaphragm surface layer coating device which comprises a supporting frame, an electroplating pool, a to-be-plated placing frame, a control cabinet, a liquid supply assembly, a nanometer bubble generator, a nanometer bubble stirring assembly, an air supply assembly, a wiring assembly, a positive electrode cylinder and a negative electrode electric clamp. And the bottom of the to-be-plated placing rack is fixedly mounted at the inner bottom of the electroplating tank. The nanometer bubbles enter the positive electrode cylinder, the electrified positive electrode cylinder, the shunting plate, the reducing cylinder and the shunting net plate release metal ions, the nanometer bubbles carry the metal ions to collide with the sensor metal diaphragm, and the metal ions are attached to the outer surface of the sensor metal diaphragm, so that the purpose of uniformly depositing a metal coating is achieved; the surface smoothness of the membrane is improved; the metal ion release and deposition efficiency is improved; the hot spot effect is avoided; the electroplating efficiency is improved;

The utility model relates to a dry type refrigerant evaporator. According to the scheme, the dry type refrigerant evaporator comprises a shell, an evaporator core, a hard pull rod, a deflection baffle and a length adjusting structure. Wherein the hard pull rods are parallel to the length direction of the shell, the deflection baffles are evenly arranged at intervals and provided with pull rod fixing holes, and the length adjusting structures fix the hard pull rods between the end covers, so that the evaporator core is fixed. The area of hole position notches in the deflection baffles accounts for 16-25%, and the heat exchange efficiency is optimized.

The invention belongs to the technical field of lithium ion batteries, and particularly relates to a water-based composite binder for a silicon-carbon negative electrode of a lithium ion battery, a preparation method of the water-based composite binder and a battery containing the water-based composite binder. The water-based composite binder comprises the following three components: a first component which is a compound containing guanidine bonds and salts thereof; the second component is a chain derivative of glutamic acid; and the third component is a derivative of polystyrene. The composite binder suitable for the lithium ion battery silicon-carbon negative electrode is obtained, and the cycling stability and the rate capability can be improved. A chain derivative containing guanidine bonds and a chain derivative of glutamic acid are associated through hydrogen bonds to construct a polar functional group for inducing a solid and non-negative electrode solid electrolyte interface and a soft chain for buffering volume expansion. Meanwhile, the hard-chain polystyrene derivative containing the benzene ring provides a strong bonding effect for the composite binder. And the soft chain and the hard chain act simultaneously to wrap the silicon-carbon negative electrode, so that the volume expansion is greatly buffered. The water-based composite binder is simple and convenient to prepare, the raw materials are economical, and the water-based composite binder is green and environment-friendly by taking deionized water as a solvent. The aqueous composite binder can effectively improve the processability and the electrochemical performance of the silicon-carbon negative electrode of the lithium ion battery, and has a good commercial application prospect.

The invention discloses a crystalline form VI of aconitine A and a preparation method and application thereof, which is simple to prepare and has good stability and better pharmacokinetic properties. Compared with the raw material of aconitine A, the polymorph of aconitine A according to the invention has lower toxicity and better analgesic effect, further improving the application prospect of aconitine A.

The application discloses aryl benzimidazole compounds of formula I, pharmaceutical compositions and applications thereof. The compounds and the pharmaceutical compositions have specific GLP-1 agonistic activity, and are agonists of glucagon-like peptide-1 receptor (GLP-1R). Therefore, the compounds can be used for preparing medicines for preventing and / or treating GLP-1 mediated diseases or related diseases.