38results about How to "Practicable" patented technology

The invention relates to a device for preparing stem cells through a continuous perfusion bioreactor/culture bottle (bag) system. The device comprises a culture solution storage tank/bag, a monitored bioreactor, a central cell culture warehouse, a waste liquor/obtained liquor collecting container, physicochemical and biochemical indicator detecting head groups, an online monitoring system and a sterile filter membrane filter, which are connected by a speed-controlled pipeline system of a fluid-controlled sterile driver. The connecting relationships are that: the culture solution storage tank/bag is connected with the monitored bioreactor through the speed-controlled pipeline system; the monitored bioreactor is connected with an inlet of the central cell culture warehouse through the speed-controlled pipeline system; an outlet of the central cell culture warehouse is connected with the waste liquor/obtained liquor collecting container through the speed-controlled pipeline system; the monitored bioreactor is connected to the online monitoring system through a physicochemical and biochemical indicator detecting head group of the reactor; and the online monitoring system is connected with the physicochemical and biochemical indicator detecting head groups at the inlet and outlet of the central cell culture warehouse respectively.

The invention provides local annealing equipment of a fastener. The local annealing equipment comprises a positioning mechanism, a flexible transmission mechanism and a heating mechanism for heating the fastener. The positioning mechanism comprises a fixed tool, a movable tool in sliding fit with the fixed tool and an upper measuring tool. A bearing positioning hole is formed in the movable tool, a measuring positioning hole formed corresponding to the bearing positioning hole is formed in the fixed tool, and the upper measuring tool is arranged in the measuring positioning hole. The flexible transmission mechanism comprises a flexible shaft, a hollow sleeve and a flexible bearing component. The flexible shaft penetrates through an inner cavity of the hollow sleeve, the end face of the hollow sleeve is connected with the flexible bearing component, the flexible bearing component bears the flexible shaft, and the central axis of the flexible shaft is collinear with the central axis of the measuring positioning hole and the central axis of the bearing positioning hole. The local annealing equipment is high in automation degree, can precisely control the annealing starting position and the annealing width and does not damage a workpiece, and therefore the production yield is improved.

The invention discloses a method for measuring the densities of cotton substances by adopting a Young's modulus tensile tester. The method is characterized in that the setting of a commonly-used digital display hydraulic torque Young's modulus measuring instrument is improved: liquid in a hose and a syringe is emptied and is changed into with air; a drill bit clamp of a tensile steel wire is screwed to be attached to a frame, so that the length of the tensile steel wire is prevented from being changed. According to the method disclosed by the invention, the improved Young's modulus tensile tester is adopted for measuring pressure applied for changing the volume in a device and calculating to obtain the volume of an to-be-measured object, and further the density of the to-be-measured object is obtained; the result obtained by adopting the method disclosed by the invention is close to density data measured by adopting a traditional method, and the experimental result is basically consistent with the theoretical result, so that the method has practicability; the measurement method disclosed by the invention is simple in operation and higher in accuracy, and is particularly suitable for measuring the densities of the objects such as the cotton and sponge which are difficultly measured by using a conventional method; in addition, the condition that the measured object is prevented from being damaged or wetted.

The invention proposes a dust-free shoe, which is provided with a groove at the bottom of the shoe body, and a roller device is arranged in the groove, the viscous plastic film is installed on the bottom surface of the shoe body through the roller device, and the spring is installed on the roller On the device, it provides rotational force for the roller device; when a person wears clean shoes and walks in the clean room factory, the sticky plastic film at the bottom of the shoe body is close to the ground, which can stick particles; At this time, the rotating force provided by the clockwork device makes the roller device roll, rolls up the viscous plastic film pasted with particles, and pulls out the viscous plastic film not pasted with particles, so as to re-paste the particles; The removal of particles in the clean room workshop has the advantages of low cost, strong practicability and good effect.

The invention discloses an extrusion filter and an efficient extrusion filtering assembly adopting the same, and belongs to the technical field of juicing. The extrusion filter comprises a base; a connecting ring is arranged above the base; an annular filtering portion is connected between the base and the connecting ring; a plurality of filtering holes are distributed in the annular filtering portion; and the maximum length and width of each filtering hole are 3-12mm and 0.25-0.55mm respectively. The extrusion filter and the efficient extrusion filtering assembly adopting the same are compactin structure, easy to clean and good in filtering effect, and are used for a juicer or extrusion filtering equipment of the juicer.

The invention discloses a method for reducing the thermal cracking tendency of an aluminum-based composite material by adding rare earth Ce elements. The ZL205A alloy is used as a matrix material, thepreparation method comprises the following steps of firstly, preparing the micro-nano particle TiB2 reinforced ZL205A composite material by utilizing an in-situ self-generated melt technology, then adding 0.2% of rare-earth Ce elements into the composite material melt containing the TiB2 particles, so that the thermal cracking tendency of the aluminum-based composite material is reduced. According to the aluminum-based composite material by adding rare earth Ce elements, the thermal cracking tendency of the 5TiB2 composite material can be reduced under the condition that the strength and thetoughness are not reduced, grains of the series of composite materials are refined, the performance of the material is improved, and the service life of the material is prolonged.

An easily openable advertisement-type reply letter and its operation method are disclosed. Said letter is composed of an easily openable advertisement-type external envelope and the object contained in said envelope, which is composed of a personal small advertisement-type envelope openable easily, advertisement page, contract, bill, etc. Said envelope has the personal information and advertisement on its external surface and an opening lug for opening it easily.

The invention discloses a surface polishing device for machining a new energy automobile motor. The surface polishing device comprises a bottom box and a machine body, the bottom box is arranged at the bottom of the machine body, side plates are arranged on the left side and the right side of the machine body, the back of the machine body is provided with a lining plate, the two side plates are provided, the side edges of the same square position of the two side plates are both connected the left side and the right side of the lining plate are fixedly connected in a welding mode. According tothe surface polishing device, a silencing device is arranged, the generated noise can be adsorbed to a certain extent during polishing, noise pollution caused by noise transmission is avoided, so thatthe equipment is more environment-friendly, a supporting plate is arranged, so that a workpiece can be placed on the sliding plate and the square plate for proper rest, or the arm of the worker is placed on the sliding plate and the square plate for polishing operation, so that the arm can be prevented from being held for a long time to carry out polishing so as to produce aching pain, the working efficiency is higher, and the polishing wheel can be moved forwards and backwards according to needs, the operation is more convenient.

The invention belongs to the technical field of automobile sound quality, and discloses a sound quality adaptive design method and device based on a virtual bridge. The invention includes: when the sound quality performance of a sound sample is scored, an evaluator is organized to control the driving of a simulated vehicle under a given working condition by using a virtual bridge frame, reproducing a virtual driving environment through a visual reproduction module and an auditory reproduction module in the driving process, and playing the sound sample collected in advance in the virtual driving environment; and establishing a subjective evaluation prediction model based on the relationship between the objective indexes of the sound samples and the subjective scoring results of the sound samples, and adaptively modulating the sound samples of which the sound quality is averagely distributed at each evaluation grade based on the subjective evaluation prediction model. The device comprises a virtual bridge frame, a visual reproduction module, an auditory reproduction module, an evaluation module and a data processing module. The problems that in subjective evaluation, real vehicle evaluation is low in efficiency and high in cost, listening room evaluation does not have universality, and sound quality design is not targeted are solved.

The invention discloses a space rope net and a making method thereof. The space rope net is used for capturing a space target and comprises an outer ring rope, an inner ring rope, a middle rope, a radial rope, a closing-up rope, a traction rope, a tying rope and a closing-up rope ring; the outer ring rope, the inner ring rope and the radial rope constitute a bearing frame of the space rope net; aplurality of rhombic meshes are defined between the middle rope and the outer ring rope, between the middle rope and the inner ring rope as well as between the middle rope and the radial rope to forma space rope net body together; the traction rope is arranged at the vertex of the outer ring rope to pull out the space rope net; the closing-up rope is arranged on the outer ring rope and used for closing up and locking a net opening of the rope net after the space rope net captures the space target; and the tying rope is arranged on the inner ring rope and used for drawing the space rope net after the space target is captured. The invention further correspondingly discloses a knitting mode of the space rope net. The space rope net is made through an interspersed fast knot method and a crossinterspersed method, through the reasonable and optimized methods, the number of knots of the space rope net is decreased, and the overall strength of the space rope net is improved.

The invention provides an activated carbon microwave regeneration device which comprises a furnace body arranged on a support. A power mechanism is arranged on the furnace body. The furnace body comprises a furnace wall and a quartz glass furnace located in the furnace wall. A feeding hopper is communicated with the quartz glass furnace, and a plurality of microwave heating devices are arranged outside the furnace wall. An auxiliary heating device is arranged in the quartz glass furnace and is provided with rotating force by the power mechanism. The auxiliary heating device comprises a spiral stirring shaft and a heating pipe coaxially arranged in the spiral stirring shaft. According to the invention, the original aerobic environment is changed into an anaerobic environment, so that the safety coefficient is higher; the carbon yield of the activated carbon is increased to 70% from the original 27%; and the unit energy consumption is greatly reduced, and the cost is saved. An auxiliary heating system is added in the equipment, so that the energy consumption can be effectively controlled. Compared with the traditional regeneration process, energy is saved by more than 50%. The method has better practical feasibility in industrial application.

The invention belongs to the veterinary field of traditional Chinese medicines, and discloses medicines for soothing nerves and fattening live pigs, and a preparation method of the medicines. The medicines for soothing nerves and fattening live pigs consist of the following components in parts by mass of 5-15 parts of rhizoma dryopteris crassirhizomae, 5-10 parts of radix polygoni multiflori preparata, 5-20 parts of malt and 5-20 parts of soybeans. The preparation method comprises the steps of performing extraction to obtain a rhizoma dryopteris crassirhizomae extract, performing extraction toobtain a radix polygoni multiflori preparata extract, performing extraction to obtain a malt extract, performing stir-frying on the soybeans, performing crushing, and performing screening with a 60-mesh sieve so as to obtain soybean fine-granule powder; and uniformly mixing obtained products so as to obtain the medicines for soothing the nerves and fattening the live pigs. The medicines disclosedby the invention are safe, healthy and reliable in design, have obvious effects of increasing weight caused by soothing the nerves, having a strong desire to sleep and gluttony, can effectively achieve the effects of stimulating the appetite, invigorating the spleen, replenishing tonic or nourishing foods to build up health, replenishing blood, soothing the nerves and fattening, are free from toxic and side effects, are green and safe, and have high practicality.

The invention discloses a rapid protection method for resisting timing and cache side channel attack under a KLEIN encryption AVR environment. The rapid protection method comprises the following steps that S1, input 4 bits are converted into a Boolean operation equation set of output 4 bits through algebra standard form conversion; S2, bit values which are output in the S1 step are grouped according to bytes, total 8 bytes exist, and two bytes are in ring shift left and are output to a next step; S3, the output from the S2 step is subjected to bit slicing linear diffusion operation, the output is final output of a KLEIN round function and is taken as an input value of the next round S1; S4, the steps S1, S2 and S3 are repeated aiming at different KLEIN secret key lengths until a corresponding complete encryption output value is obtained. According to the rapid protection method, a Timing boundary channel attack mode, a Cache boundary channel attack mode and the like are defended by a KLEIN algorithm through a bit slicing mode; meanwhile, corresponding majorization is carried out respectively on the basis of reading and storage operations, and the computation complexity of the algorithm on a MixNibbles step is thus reduced.