62results about How to "Easy to apply directly" patented technology

The present invention includes perfusion bioreactors, automated cell culture systems, and methods for production of cells and cell-derived products.

The invention discloses an integrated hydro-pneumatic spring device. An inerter working chamber is coaxially arranged in a damping working cylinder, a piston portion in the inerter working chamber is arranged as a screw rod structure, a ball screw nut is arranged on the screw rod in the inerter working chamber according to a ball screw principle, a flywheel is coaxially fixed on the ball screw nut, the nut is limited in the middle section and can only rotate around the screw rod through two stop collars fixed at the top and bottom of the working cylinder, and ball circular grooves are arranged on contact surfaces of the stop collars with the nut. As an improvement, self-weight of a vehicle body is not increased when sprung mass of a suspension is improved, driving comfort and handling stability of vehicles are improved, complex mechanical network combined process is avoided, and spatial arrangement limitation is reduced due to coaxial parallel connection of the inerter and the damping.

The invention relates to the fields of navigation technology and the like and concretely relates to an inertial navigation system polar navigation parameter calculating method. The method calculates navigation parameters which are suitable for polar navigation by constructing an ellipsoidal surface grid course reference model and utilizing navigation information of the inertial navigation system in a navigation coordinate system. The navigation parameters are applied to navigation calculating modules of the inertial navigation system, and the inertial navigation system can output the polar navigation parameters directly. The polar navigation performance of the inertial navigation system is raised, and the requirement of safe polar navigation of carriers is meet.

The invention provides a chemical warfare agent self-disinfection MOF (metal organic framework) fiber filtering membrane and a preparation method thereof. The preparation method comprises the following steps of performing electrostatic spinning calcining to prepare a zirconium oxide fiber film; mixing with a corresponding organic ligand and an activated acid solution, and performing hydrothermal reaction, so as to obtain the self-disinfection MOF fiber filtering membrane. The prepared self-disinfection MOF fiber filtering membrane has the advantages that the additional support material is notneeded, the self ultra-large specific surface area of MOFs is maintained, and the adsorption capacity and catalytic property are excellent; by adopting the micro-nano multi-stage structure, the reaction matter is favorably transmitted, the catalytic sites are exposed, and the agglomeration of the catalyst is avoided; the excellent self-disinfection property is realized; the degrading conversion rate of a simulating matter of a chemical warfare agent is high, the half-life period is short, and the stability in cyclic use is good; by adopting the thin film form, the self-disinfection MOF fiber filtering membrane can be directly applied into the actual filtering protection device.

The invention discloses a refrigerator provided with an air channel assembly and a control method thereof, and relates to the technical field of refrigerators. The refrigerator provided with the air channel assembly comprises a refrigerator body in which the air channel assembly is arranged, wherein the air channel assembly comprises a fan assembly, a front cover plate of an air channel, and a rear cover of the air channel; the rear cover of the air channel covers the front cover plate of the air channel; an air channel chamber is formed between the front cover plate of the air channel and therear cover of the air channel; a plurality of freezing air outlets are formed in one surface of the front cover plate of the air channel; at least one interlayer chamber body which is filled with a phase-changed coolant is arranged on the front cover plate of the air channel; a controller is arranged in the refrigerator body and is correspondingly connected to a variable-frequency compressor, thefan assembly and a room temperature sensor. According to the refrigerator provided with the air channel assembly and the control method thereof, an empty chamber which is filled with the coolant is designed in the front cover plate of the air channel; the controller is arranged in the refrigerator body and is used for controlling the rotating speed of the fan assembly and the variable-frequency compressor; and the coolant is used for storing cold, and thus the problem that the temperature of a freezing chamber of an air-cooled refrigerator increases again while a defrosting heater performs heating, resulting in the spoilage of foods in the freezing chamber, can be avoided.

The invention discloses a damping shock absorber for a hydraulic interconnection suspension. The damping shock absorber comprises a liquid storage cylinder, wherein a piston cylinder is arranged in the liquid storage cylinder, a top valve assembly is arranged at the top end of the piston cylinder, a bottom valve assembly is arranged at the bottom end of the piston cylinder, and a cavity in the damping shock absorber is divided into a liquid supplement cavity between an upper end cover and the top valve assembly, an upper cavity between the top valve assembly and a piston, a lower cavity between the piston and the bottom valve assembly, and a liquid storage cavity between the piston cylinder communicating with the lower part of the bottom valve assembly and the liquid storage cylinder through the top valve assembly, the piston, the bottom valve assembly and the piston cylinder; an upper thread hole connecting with an oil tube is arranged in the upper end cover; the upper thread hole communicates with the liquid supplement cavity; a lower thread hole connecting with the oil tube is arranged in the liquid storage cylinder; the lower thread hole communicates with the liquid storage cavity; a throttle hole is arranged in the top valve assembly and the bottom valve assembly respectively; and the liquid storage cavity is charged with a compressed gas with a predetermined pressure to play a role of an energy accumulator. The damping shock absorber disclosed by the invention integrates the functions of a double-acting hydraulic cylinder, a throttle valve and the energy accumulator, and is compact in structure and convenient to directly apply to the traditional suspension structure.

The invention provides a large area nitrogen-doped carbon nano-tube paper preparation method, which comprises: (1) weighing ferrocene powder, dissolving in dichlorobenzene to form a ferrocene/dichlorobenzene carbon source solution, weighing pyridine, and mixing the pyridine and the ferrocene/dichlorobenzene carbon source solution to form a ferrocene/dichlorobenzene/pyridine mixing carbon source solution; 2) coiling an iron sheet or copper sheet substrate into a cylindrical material, placing into the quartz reaction chamber of a reaction furnace, sealing the reaction chamber, introducing argon gas to completely discharge air, and heating the reaction furnace; 3) when the temperature of the reaction chamber achieves 750-900 DEG C, adjusting the argon flow rate while introducing hydrogen; 4) injecting the ferrocene/dichlorobenzene/pyridine mixing carbon source solution into the reaction chamber, and carrying out a reaction; and 5) stopping the heating of the tubular reaction furnace, closing the hydrogen, adjusting argon flow rate to make the product be cooled to a room temperature along with the furnace, and collecting the large area nitrogen-doped carbon nano-tube paper on the substrate. According to the present invention, the nitrogen-doped structure carbon nano-tube film two-dimensional structure and the simple, rapid and large-scale preparation method can be used for the fields of new energy sources, sensors, flexible electronic devices, and the like.

The invention discloses a Chinese medicine orthopaedic injury clamping plate. Elastic bandages are arranged on two sides of a fixing clamping plate, bonding layers are arranged on two sides of the elastic bandages, an anti-microbial dressing is arranged in the middle of the inner side of the fixing clamping plate, and a drug placing layer is arranged in the middle of the anti-microbial dressing. Aheating layer is arranged in the drug placing layer, a temperature sensor is arranged outside the heating layer, a processor is arranged at one end in the fixing clamping plate, and the temperature sensor is electrically connected with the processor. The Chinese medicine orthopaedic injury clamping plate is simple in structure, reasonable in design, the fixing clamping plate is connected with theelastic bandages to facilitate operation and use, the degree of tightness is well controlled, the drug placing layer is arranged to facilitate direct application of drugs to the affected area of a patient, the drugs are heated through the heating layer as needed to increase the effect of drug treatment.

The invention relates to a wettable cathode material for an aluminum electrolytic cell as well as a preparation method and application thereof. On the basis of high wettability of graphene on aluminumliquid as well as excellent mechanical property and corrosion resistance of the graphene, the conductive surfaces of a carbon block and a metal block are spin-coated with a graphene coating or a composite layer thereof with a certain thickness by a spin-coating coating technology, and the prepared novel cathode has excellent wettability on the metal aluminum liquid, so that the thickness of the aluminum liquid at the bottom of the electrolytic cell is greatly reduced, the polar distance of the electrolytic cell can be reduced to reduce the cell pressure drop, and energy saving and consumptionreducing are realized. Meanwhile, due to the layer structure of the graphene as well as high tensile strength and compressive strength, the electrolyte corrosion resistance of the cathode and the structural strength of the cathode are greatly improved, the original cathode can be plated, and the cathode structure of the electrolytic cell does not need great modification. A metal electrode can befurther prepared, and the pressure drop of the electrolytic cell can be further reduced.

The invention relates to non-oxidation Ti3C2 quantum dots with a function of selectively killing cancer cells, and a preparation method and an application of the non-oxidation Ti3C2 quantum dots. Theaverage size of the quantum dots is only about 7 nm, the quantum dots are completely free of oxidation and free of toxic elements such as heavy metals, and the quantum dots have broad-spectrum inhibiting and killing effects on the cancer cells and show excellent biocompatibility and extremely low cytotoxicity on normal stem cells of a human body. The non-oxidation Ti3C2 quantum dots provided by the invention have huge application potential in future anti-cancer and cancer-fighting roads. Meanwhile, the quantum dots have a rapid and spontaneous water dispersion characteristic. When an aqueous dispersion liquid is prepared, any ultrasonic and stirring treatment is not needed, so that the quantum dots are beneficial to direct application in biology or medicine.

The method performs surface treatment on dead insects resulted from infection of entomopathogenetic nematodes (entomopathogenetic nematodes and insect complexes) through a three-step method. Firstly, anti-dry and antibacterial treatment is performed on the insect complexes infected by the entomopathogenetic nematodes; the insect complexes infected by the entomopathogenetic nematodes are immersed in a mixed solution of kaolin, glycerin soil and water; then further surface treatment is carried out in mixed powder of kaolin starch and vermiculite; and finally, edible pigment is sprayed to make the surface treated dead insects infected by the entomopathogenetic nematodes red color. The surface treated dead insects infected by the entomopathogenetic nematodes can release the entomopathogenetic nematodes normally. Surface treated dead insect agents solve the problems of adhesion and decay during a transport process and guarantees release rate of the entomopathogenetic nematodes. The method is simple and practical, is helpful for large-scale application of the dead insects infected by the entomopathogenetic nematodes.

The invention discloses a device and a method for advanced denitrification of advanced landfill leachate by anaerobic ammonia oxidation based on kitchen waste digestive juice as an external carbon source, and belongs to the technical field of biological denitrification of high-ammonia-nitrogen wastewater. The advanced landfill leachate firstly enters a synchronous short-cut nitrification-denitrification coupled anaerobic ammonia oxidation reactor, the reactor operates in a mode of oxygen deficit 1.5 h/micro-aerobic aeration 21.5 h, the oxygen deficit section utilizes sufficient organic matters in raw water to remove nitrite nitrogen and nitrate nitrogen remaining in the last period, and the aerobic section synergistically realizes short-cut nitrification-anaerobic ammonia oxidation and denitrification; and pumping the discharged water into a short-cut denitrification-anaerobic ammonia oxidation reactor, adding a kitchen waste digestive fluid at the same time, and operating the reactor in an anoxic manner to realize high-efficiency nitrogen removal. According to the method, the kitchen waste digestive juice which is good in biodegradability and low in price is used as an external carbon source, the treatment cost is remarkably reduced, the method is suitable for combined treatment of the landfill leachate and the kitchen waste digestive juice which are generated under the large situation of garbage classification, and the purpose of treating waste with waste is achieved.

Provided is a handheld pen type edge oiling tool. The handheld pen type edge oiling tool comprises a brush head and a handle. The brush head is detachably connected with the handle. A guide rod is arranged between the brush head and the handle. The guide rod is located in the handle and provided with a connection thread. The brush head is provided with a connection threaded rod which is inserted into the connection thread and used for fixedly connecting the brush head with the guide rod. The rolling brush head is arranged on the edge oiling tool so that paints can be directly coated on edges, thereby increasing working efficiency of edge coating. Due to the fact that the guide rod is connected with the brush head, rolling amplitude of the brush head is improved so that the brush head does not swing during coating.