63 results about "Long-term experiment" patented technology

The invention relates to an anaerobic zero-valent iron sewage treatment method, belonging to the sewage treatment technical field. The anaerobic zero-valent iron sewage treatment places zero-valent iron in an anaerobic reactor and utilizes the environmental conditions of the anaerobic isolated air to largely reduce the formation rate of the rust of zero-valent iron and avoid the formation of hardening; meanwhile, the method uses the reducing action of metal iron to increase the anaerobic reductive atmosphere, balance the pH and increase the effect of the anaerobic organism. A circulating pump is adopted for sewage backflow so as to increase the overflow load of an iron/activated carbon layer and the reaction effect of zero-valent iron, improve the fluidization effect of sludge to increase the anaerobic process efficiency. In a sewage treatment system, ferrous iron contained in the discharged sewage is oxidized to Fe(OH)3 with the air and the coagulation generated in the process can further purify the sewage. Long-term experiment research shows that the decolorizing rate of the sewage treatment method for dye wastewater can teach 85%-95%, the COD can be reduced by more than 50% and the biodegradability can be increased to more than 0.3.

The invention discloses a brain-computer interface method and device based on logic thinking and imaginal thinking and relates to the field of novel pattern of brain-computer interface technology and feature extraction and classification. An experiment requires a testee for mental calculation and a three-dimensional object to rotate, signals of six electrodes are collected, and a common spatial pattern is adopted to extract feature values. Aiming at the problem that the common spatial pattern is suitable for multiple electrodes and the feature values, a common spatial filter algorithm is improved, electroencephalogram signals of one electrode are subjected to separation of different frequency bands and time periods, and the electroencephalogram signals are subjected to feature extraction calculation. The feature values are subjected to classification of a support vector machine, and excellent classification effect can be realized by the data processing mode through offline data analysis. A brain-computer interface based on logic thinking and imaginal thinking is constructed, reliability of a system is improved, experiment imaging difficulty and visual fatigue caused by long-term experiments are reduced, comfortability of the brain-computer interface system is improved, and application population range is expanded.

The present invention provides a bending board and a manufacturing method thereof, which belongs to the technical field of veneer board. The bending board comprises surface boards and a middle board. The invention is characterized in that the upper surface and lower surface of middle board are set with surface boards precisely. Furthermore the wood fiber grain of surface board and wood fiber grain of middle board are distributed across. The manufacturing method comprises the following steps: selecting material, rotary cutting, board bending, drying, adhesive confecting, adhesive spreading, prepressing, hot pressing and grinding with sand. The bending board of the invention selects appropriate wood as raw material and executes strict board matching. The inherent fiber characteristic of wood is scientifically, reasonably and sufficiently. The bending board is bent randomly along with wood fiber. The manufacturing method is confirmed with an optimal adhesive confecting method after long-term experiment. The performance of bending board is more sufficiently represented through the approximate adding amount of solidifying agent and filling agent in adhesive confecting.

The invention discloses a traditional Chinese medicinal composition with anti-tumor activity. The composition is prepared from the following bulk drugs in parts by weight: 30-60 parts of ginseng, 20-40 parts of radix ophiopogonis, 30-50 parts of oldenlandia diffusa, 10-40 parts of sculellaria barbata, 10-20 parts of rhizoma arisaematis, and 10-30 parts of curcuma zedoary. According to the traditional Chinese medicinal composition, the traditional Chinese medicinal prescription is screened by adopting the theory of treatment based on syndrome differentiation according to traditional Chinese medical theory, and the traditional Chinese medicinal composition is scientific and reasonable in proportion. Experiment results indicate that the traditional Chinese medicinal composition has a good effect in inhibiting tumor cell growth and promoting tumor cell apoptosis, has a strong killing effect on multiple malignant cells, and is wide in application range; pains of a tumor patient can be remarkably reduced, the living period can be prolonged, and the life quality of the patient can be improved. Long-term experiments and researches indicate that the traditional Chinese medicinal composition is high in safety and low in toxic or side effect, and can be developed into a novel anti-tumor medicine.

The invention discloses a negative temperature coefficient (NTC) temperature sensor which comprises a silica gel lead and an NTC thermistor. The end of the silica gel lead is welded to the NTC thermistor, a high temperature encapsulating rubber layer is encapsulated on the outer side of the NTC thermistor and the outer side of an exposed portion of the silica gel lead, and a high temperature potting rubber layer and a casing are sequentially wrapped on the outer side of the high temperature encapsulating rubber layer. The NTC temperature sensor has great breakthrough in NTC thermistor response time, the response time is controlled within one second, and reliability and repeatability are verified through long-term experiments. In addition, the NTC temperature sensor has high dielectric strength and can sustain 1 minute without breakdown under the voltage of 3000VAC. The NTC temperature sensor is firm, durable and stable and reliable in performance, can greatly improve service life, is installed conveniently for remote temperature measurement and control, meets requirements of industries such as food equipment and military equipment which have high requirements on temperature variation to a great extend, and fills market vacancy.

The invention discloses an aluminum-alloy conductor material and a production process of the aluminum-alloy conductor material. An aluminum-alloy conductor comprises the following ingredients according to percentage by weight: 0.42-0.46% of Cu, 0.30-0.32% of Fe, 0.28-0.34% of Si, 0.19-0.23% of P, 0.18-0.20% of Ca, 0.16-0.20% of K, 0.09-0.15% of Mo, 0.09-0.15% of Co, 0.08-0.12% of Mn, 0.07-0.11% of Cr, 0.05-0.07% of Sn, 0.04-0.08% of Ti, 0.04-0.06% of Zn, and the balance of Al and inevitable impurities. The production process comprises smelting the ingredients of the raw material, standing, slagging off, casting, annealing in a homogenizing manner, extruding the raw material and drawing into wires, and a finished product of the aluminum-alloy conductor material is prepared finally through cleaning, shearing, straightening, inspecting and packaging. Compared with the existing aluminum-alloy conductor material, the aluminum-alloy conductor material provided by the invention is higher in strength and better in conductivity, the long-term experiment of the scientific research department shows that the tensile strength is up to 283 Mpa, the conductivity is up to 62.7% IACS, the heat resistance durability is more than 2 years under normal work at the state of 240 DEG C, and the aluminum-alloy conductor material has the advantages of strong corrosion resistance, low cost, light weight and simple and convenient production, and is suitable for power transmission outdoors.

The invention relates to a compact cell experiment module, namely an automatic passage type cell long-term experiment integrated module capable of being used for observing on line in real time, which not only has a function of updating an autonomous cell culture medium and a reagent and has an automatic passage ability to realize a long-term cell culture experiment, but also can be used for performing an individualized culture experiment and automatic sampling on cell samples of different culture rooms and can be used for observing the cell growth condition on line in real time. The automatic passage type cell long-term experiment integrated module comprises a reagent component, a culture medium component, a cell culture plate, a base, a multi-branch fluid driven flow path, an image system and a control system. The passage type cell long-term experiment integrated module provided by the invention not only has the function of updating the autonomous cell culture medium and the reagent and has the automatic passage ability of realizing the long-term cell culture experiment, but also can be used for performing the individualized culture experiment and automatic sampling on the cell samples of the different culture rooms and can be used for observing the cell growth condition on line in real time.

The invention discloses a rainfall test box, comprising a box body, a transparent glass door, an air inlet cylinder, a first transparent glass plate, a first scale line, a material mixing cylinder, amaterial mixing motor, a burdening cylinder, a second transparent glass plate, an air inlet fan, a filtering plate, a spray component, a leakage plate, a water inlet, a stirring rod and a discharge valve. The rainfall test box disclosed by the invention is provided with the material mixing cylinder and the burdening cylinder, and is provided with the first scale line and a second scale line, so that matching simulation can be performed according to the pH of the rainwater, the simulation effect is improved, the rainfall test box is provided with the spray component to perform movable spray, sothat multi-angle movable spray can be performed, the rainwater spray state in a natural state can be simulated, the simulation state is diversified, the simulation effect is good, the rainfall test box is provided with the air inlet fan to achieve a cooperative simulation state of the wind power of the spray, so that the test effect is improved, and the rainfall test box is provided with a transfer water pump to achieve the self-circulation of the water in the test box, so that a lot of water resources are saved under a long-term experiment, and long-term continuous simulation can be performed.

The invention relates to a filtration method for dampening solution used printing and a device thereof. By adopting the method, the dampening solution used for printing in an external circulation loop is inhaled mainly utilizing the pneumatic principles, and then the dampening solution is filtered by the corresponding filtration device for pneumatic dampening solution. The filtration device for the pneumatic dampening solution comprises a filter, a regulator and a shell, wherein, the filter is arranged on the shell, the regulator is arranged inside the shell, furthermore, the filter is connected with the regulator. Proved by long term experiments of researchers, the service life of the dampening solution which is filtered by the method of the invention is six times more than the service life of ordinary dampening solution which is not filtered. In addition, less chemical is used in the invention and exhaust emission and the cost of tail gas treatment is reduced greatly.

The invention discloses a cultivating method capable of promoting root development of flue-cured tobacco at the earlier stage of growth. The cultivating method comprises the steps of soil preparation,fertilization, ridging, film coating and transplanting. According to the cultivating method, on the basis of long-term experiments and demonstrations, the cultivating method capable of promoting rootdevelopment of the flue-cured tobacco at the earlier stage of growth is set up, early growth and quick development of tobacco plants at the root extending stage are accelerated by means of the cultivating method, coordination of root growth and tobacco plant growth is promoted, the drought resisting capacity of the tobacco plants is enhanced, the quality and grade structure of the flue-cured tobacco are improved, and high popularization value is achieved.

The invention provides an artificial carassius auratus breeding method, and relates to the field of aquaculture. The artificial carassius auratus breeding method comprises the following steps that pond cleaning and disinfection treatment are carried out on a fish pond before fries are put into the pond, water is injected into the fish pond, the fires are put in the pond one week after water injection, shrimps and snails are put in the fish pond; the fries are fed with a mixed feed with the protein content ranging from 39% to 40%, 10-20 kg of quicklime is put in the fish pond per mu according to the water quality conditions to regulate water quality, and the fish pond is replenished with fresh water at fixed periods. According to the artificial carassius auratus breeding method, additives are added into the mixed feed and achieve the effects of feeding promotion and growth promotion, source of raw materials of the additives is stable, the smell and taste requirements of carassius auratus for the mixed feed can be met, and the ingestion speed and feed intake are increased remarkably; the effective constituents and ratio of the additives of the feed are optimized by the inventor through long-time experiments, the feed promotion effect can be enhanced, the anti-stress capacity and the growth rate of carassius auratus can be remarkably increased, and the feed coefficient is reduced; the additives of the feed are safe, efficient and free of toxic and side effects in long-term use.

The invention discloses donkey-hide gelatin-rose mixed wine and a production method thereof. The formula of the mixed wine consists of the following materials in percentage by weight: 10 to 30 percentof donkey-hide gelatin, 6 to 12 percent of rose, 3 to 7 percent of wolfberry fruit, 3 to 7 percent of Chinese date and 30 to 90 percent of distilled liquor. According to the production method, the steps are simple, the production method is convenient to operate, the materials of the composite mixed wine disclosed by the invention are medicinal and edible, and an experiment proves that the mixed wine has a good therapeutic effect. Medicinal material soaking time and repeated liquor sterilization and filtration are finalized by a long-term experiment. The wine undergoes repeated sterilization and filtration, so that substances which can cause turbid sediment can be removed from the wine, so that the effect of increasing the quality and clarity of the wine is achieved. The composite mixed wine disclosed by the invention can relieve symptoms, such as menoxenia, gynecological diseases, fatigue and weakness caused by deficiency of Qi and blood and liver depression.

The invention discloses rhizoma polygonati-oyster compound wine and a preparation method. The rhizoma polygonati-oyster compound wine is prepared from the following raw materials by weight percent: 1-2% of rhizoma polygonati, 1-1.2% of oysters, 0.5-1.5% of fructus lycii, 0.4-0.8% of ginseng, 0.4-0.8% of orange peel, 0.5% of deer's sinew, 0.4% of deer's tail and the balance of Baijiu. According to the compound wine disclosed by the invention, the raw materials are medicinal and edible, and a relatively good curative effect is proved by experiments. The soaking time of the medicinal materials and the medicine liquid of two-level filtration are both finally determined by long-term experiment. Through two-level filtration of the wine liquid, the substances leading to turbid sediment in the wine can be removed to achieve an effect of improving the quality and clarity of the medicated wine. The compound wine disclosed by the invention is suitable for the following sub-health people: people with digestive tract diseases, people with senile diseases, people with nervous system functional diseases, people with low immunity, people with kidney-deficiency emission, night sweat and weak male power. The rhizoma polygonati-oyster compound wine causes no toxic or side effect.

The invention discloses a regulating device for simulating rat body fluid distribution in a weightless state, and belongs to the technical field of aviation biomedical engineering. The regulating device comprises a lower limb body position regulating control unit, a diet activity platform, a beam, a hanging rod, a tank and a drinking water bottle, wherein the tank is of a rat cage, the drinking water bottle is arranged on the outer side wall of the tank, and the diet activity platform is fixed into the tank. Two parallel rails are arranged on the top wall of the tank, the beam is hung below the rails, the hanging rod is hung below the beam, two ropes are hung on the hanging rod, and the other ends of the ropes are hung on the lower limb body position regulating control unit. The rear limb hanging weightless state and free diet of rats are ensured, blood supply can be changed by regulating rear limb body positions of the rats, and an excellent model method is provided for researching the influence of blood on weightless bone loss. The method used by the device is simple to operate, the rats cannot be wounded, and long-term experiments can be performed.

The invention discloses a method for constructing a spontaneous hyperuricemia mouse model. The method for constructing the spontaneous hyperuricemia mouse model provided by the invention comprises the following step: knocking out urate oxidase genes of a target mouse by utilizing transcription activator-like effector nuclease to obtain a homozygote mouse from which the urate oxidase genes are knocked out, namely the spontaneous hyperuricemia mouse model. Experiments prove that the serum uric acid level of the spontaneous hyperuricemia mouse model obtained by the method disclosed by the invention is 3-4 times that of a wild type mouse and achieves the hyperuricemia level, and the pathogenesis of spontaneous hyperuricemia is better simulated. In addition, as the serum uric acid level of the mouse model obtained by the method disclosed by the invention is lower than the ultrahigh-level serum uric acid value reported in the previous literature, the lethal hyperuricemia does not exist, and the survival time of the mouse is long, so that long-term experiment of the mouse is facilitated.

The invention discloses a crucian breeding method, and relates to the field of aquaculture. The method comprises the following steps that a fish pond is cleaned and disinfected before fry are bred; water is injected into the fish pond; one week after water injection, the fry are bred; shrimps and snails are bred in the fish pond; the fry are fed with mixed feed with the protein content of 39-40%;the water quality is controlled according to the water quality condition of the fish pond by using 10-20 kg of quick lime per mu; fresh water is regularly supplemented into the fish pond. According tothe artificial crucian breeding method, additives are added into the mixed feed, so that the feed has the function of inducing food taking and promoting growth; the raw materials of the additives arestable in source so that the small and gustation requirements of crucian for the compound feed can be met, and the feeding speed and the food intake are obviously increased; the effective componentsand proportions of the feed additives are optimized by the inventor in long-term experiments, the anti-stress capability and growth speed of the crucian can be remarkably improved while the food calling performance is improved, and meanwhile the feed coefficient is reduced; the feed additives are safe and efficient and have no toxic and side effects after long-time use.

The invention provides an oxiracetam enteric-coated capsule. Oxiracetam in special crystallization form is used as an active component. A composite carrier containing polyoxyethylene PEO and hydroxypropyl methyl cellulose ( or polyvinylpyrrolidone) in the mass ratio of the polyoxyethylene PEO to the hydroxypropyl methyl cellulose being (1-3) to 1, is carefully selected, and the prepared oxiracetamenteric-coated preparation can reduce the dissolution rate of the active component in the stomach, and also has favorable slow control slow release properties and storage stability. The prepared oxiracetam enteric-coated granules are subjected to long-term stability test under the condition that the temperature is 25 DEG C+/-2 DEG C, and the relative humidity is 60%+/-10%, and after long-term experiment for 24 months, sample properties, content and related substances all conform to specification. The oxiracetam enteric-coated capsule is good in stability, and long in quality guarantee period.The preparation method is simple, and suitable for industrial production.

Soil contamination by heavy metals constitutes an important environmental problem, whereas field applicability of existing remediation technologies has encountered numerous obstacles, such as long operation time, high chemical cost, large energy consumption, secondary pollution, and soil degradation. A design and demonstration of a method is provided which is based on asymmetrical alternating current electrochemistry (AACE) that achieves high degrees of contaminant removal for different heavy metals (Cu, Pb, Cd) at different initial concentrations (from 100 to 10,000 ppm), all reaching corresponding regulation levels for residential scenario after rational treatment time (from 30 min to 6 h). No excessive nutrient loss in treated soil was observed and no secondary toxic product was produced. Long-term experiment and plant assay showed the high sustainability of the method and its feasibility for agricultural use.

The invention provides a feed additive for the artificial culture of aristichthys nobilis and relates to the field of aquaculture. The feed additive for the artificial culture of the aristichthys nobilis is prepared from the following raw materials in parts by weight: 6 parts of dried ginger powder, 3 parts of clove, 2 parts of foeniculum vulgare, 3 parts of peach flower essential oil, 5 parts of non-glutinous rice powder, 6 parts of medicated leaven powder, 4 parts of allicin, 11 parts of lysine, 2 parts of glycine, 2 parts of sodium glutamate, 6 parts of glycine betaine, 12 parts of kelp powder and 8 parts of field snail meal. The feed additive for the artificial culture of the aristichthys nobilis has food calling and growth promoting effects, the source of raw materials is stable, the requirements of the aristichthys nobilis to smell and taste of a compound feed can be met, and the feeding speed and the food intake can be obviously increased; active ingredients and the proportion of the feed additive are optimized by the inventor during long-term experiments, the food calling property is enhanced, the anti-stress property of the aristichthys nobilis is obviously improved, the growth speed of the aristichthys nobilis is obviously increased, and the feed coefficient is also reduced; the feed additive is safe and efficient and produces no toxic and side effects after being used for a long time.

The invention belongs to the technical field of medicine and particularly relates to injection liquid for treating brain traumas and disturbance of consciousness after a brain operation and a preparation method of the injection liquid. The injection liquid is mainly prepared from active ingredients including edaravone, sodium chloride, cysteine hydrochloride, disodium glycyrrhizinate, methylparaben, a pH regulation agent and injection water. The prepared injection liquid is free of bubbles, adhesion of bubbles on an ampoule mouth is avoided, the phenomenon that visible foreign matter is not qualified due to carbonization of medicine liquid in the high-temperature sealing process is effectively avoided, the injection liquid is stable in mass and simple in process, and it is inspected through long-term experiments that all indexes meet specifications.

The invention discloses a laser positioning type liquid transferring gun. The laser positioning type liquid transferring gun comprises a main gun body, wherein a directional air conveying device is arranged on the main gun body and communicated with the inside of the main gun body; the main gun body comprises a gun body; a handle part of the gun body is provided with a liquid absorbing button and a liquid discharging button which are electrically connected to the directional air conveying device; a control table is also arranged on the gun body; a groove is formed in the tail end of the gun body of the main gun body, is connected to a liquid transferring tube and is parallel to the handle; the groove is communicated with the directional air conveying device; the inner top of the groove is provided with a laser transmitter and a laser sensor which are electrically connected to the control table. The laser positioning type liquid transferring gun is novel in structure, small in size and light in weight, can be held in the hand, is convenient and practical and is capable of relieving fatigue caused due to long-term experiment and tension caused due to intensive concentration.

The invention belongs to the technical field of chemical, and in particular, relates to an experimental platform for chemical experiments for high school students, wherein the experimental platform comprises a platform body; a supporting mechanism is fixedly connected at the lower end of the platform body, a lifting mechanism is arranged at the upper end of the supporting mechanism, and the upperend of the lifting mechanism is fixedly connected with the lower end of the platform body; the upper end of the platform body is provided with a storage mechanism and a cleaning mechanism; the storagemechanism and the cleaning mechanism are respectively arranged near the left edge and the right edge of the platform body; the upper end of the platform body is provided with a placement groove whichis located between the storage mechanism and the cleaning mechanism, and the bottom of the placement groove is fixedly connected with a supporting member; the upper end of the supporting member runsthrough a notch of the placement groove and extends to the outer side of the placement groove. The experimental platform has the advantages that unused and used chemical instruments are simply protected against being easy to break and overturn, and the height is adjusted at the same time so as to match students with different height to carry out chemical experiments, so that bodies are not easy tostiffen and ache during long-term experiments.