69results about How to "Does not affect concentration" patented technology

The invention provides a type of fluorescent probes for detecting formaldehyde. The probes have the structures shown as formulas I to IV. Benzene ring correspondingly substituted coumarin is firstly subjected to backflow reaction with Lawson reagents in toluol; an obtained product continuously performs backflow reaction with hydrazine hydrate in ethanol. The fluorescent probes per se provided by the invention do not have fluorescence in the water solution, but can take a specific fast reaction with formaldehyde to produce products with strong fluorescence, so that the specific sensitive detection and quantitative analysis of formaldehyde is realized. The stability is high; the long-time storage use can be realized; the detection signal-to-noise ratio is high; the sensitivity is high; the excellent selectivity is realized; the specific formaldehyde detection in complicated biological samples can be realized; good biomembrane permeability is realized, so that the fluorescent probes can be used for formaldehyde detection in living cells; the detection reaction is fast; the detection result can be given within 1 minutes for formaldehyde in the water solution; during the formaldehyde detection, the formaldehyde concentration in the environment cannot be influenced. The general molecular formulas of the probes provided by the invention are shown as the accompanying drawing.

The invention discloses a method for preparing magnesium hydrate through ammonia spray method. The method comprises the following steps: by using caustic calcined magnesite and ammonium salt as raw materials, carrying out ammonia stilling reaction to obtain an ammonium and magnesium salt solution, wherein the ammonium and magnesium salt are contacted in a spray type reactor and magnesium hydrate precipitation reaction is performed, aging product mother liquor for a proper time, filtering, returning filtrate containing ammonium salt to an ammonia stilling system, washing and drying filter cake to obtain magnesium hydrate product with uniform particle shape and good dispersion state. The process disclosed by the invention is used for preparing magnesium hydrate through one-step reaction, is simple in operation step, mild in reaction condition, uniform in product particle shape, and the particle shape can be regulated by changing the reaction condition. The ammonium slat is circulated with the ammonia in the reaction process, the production cost is low, the pollution is less, and the scale production is realized, the product can be used as production raw material of high-pure magnesium oxide and inflaming retarding additive of polymer material.

The invention discloses a process manufacturing method of a silicon-on-insulator lateral insulated gate bipolar transistor, comprising a P-type doped semiconductor substrate, a buried oxide layer is arranged on the P-type doped semiconductor substrate, an oxide layer is provided with an N-type drift region, a field oxide layer of the silicon-on-insulator lateral insulated gate bipolar transistor belongs to a second-order field oxide layer, and a field board which is formed by a gate extending to the above of the field oxide layer is a second-order field board. The second-order field oxide layer is formed by the steps of depositing the oxide layer, etching and thermal growth. An N-type doped buffer region is formed by implanting high-energy ions for self-alignment of the second-order field oxide layer.

A fatigue driving alarm system comprises a camera and a detection control device which are installed in a vehicle. A microprocessor and an alarm loudspeaker connected with the microprocessor are arranged in the detection control device. The camera and the microprocessor are connected through a communication line. The microprocessor is connected with a vehicle central control system. The vehicle central control system can be used for controlling a brake device of the vehicle. The current state of a driver can be detected by the fatigue driving alarm system according to the motion of the eyes of the driver, the detection control device does not need to make contact with the head of the driver, the attention of the driver is not influenced, the comfort of the driver in the driving process is guaranteed, and the safety of the driver in the driving process is guaranteed.

The invention discloses a process for preparing apple vinegar. The process comprises the following steps of: (1) slicing immature green apples, and washing; (2) putting the apple slices and rock sugar into a fermentation tank layer by layer to ensure that one larger gap between every two layers is formed; (3) tightly sealing the fermentation tank, and putting into a shady and cool environment at the temperature of between 20 and 30 DEG C for fermentation; (4) fermenting for 50 to 60 days, unsealing, adding sticky rice vinegar, and fermenting in a sealed manner again; (5) fermenting for 170 to 180 days, stopping fermenting, and thus obtaining the original vinegar; (6) filtering to remove impurities and floaters; and (7) adding honey into the original vinegar, and uniformly mixing, wherein the addition amount of the honey is one tenth of the volume of the original vinegar. The prepared apple vinegar has unique flavor and has the characteristics of apples and vinegar; and the honey with high nutrition value is added, so that the apple vinegar can be used as a condiment and can also be used as a beverage for drinking.

The present invention provides a method for removing endotoxin from primary pure plasmid or protein. Said method includes the following steps: independently using PMXB or joint-using PMXB and TritonX-114, adding organic solvent, mixing them, making phase separation, or firstly using PMXB and Tritonx-114 and adding organic solvent to make phase separation, the adopting combination method of PMXB gel mixing method and/or PMXB gel chromatography to remove endotoxin from plasmid or protein.

The invention discloses helianthus tuberosus ferment as well as a preparation method, preparation and application thereof. The helianthus tuberosus ferment consists of the following raw materials in parts by weight: 60-80 parts of fresh helianthus tuberosus, and 20-40 parts of sugar. The fresh helianthus tuberosus is used as the raw materials, so that on one hand, the prepared helianthus tuberosus ferment has special color and smell and is good in mouth feel, and the fragrances lasts long; and on the other hand, the helianthus tuberosus ferment is rich in special functional components of inulin, polyphenol flavonoid and the like in the helianthus tuberosus, and nutrient components of various natural vitamins, minerals, trace elements, amino acids and the like. According to the preparation method of the helianthus tuberosus ferment, normal-temperature normal-pressure fermentation is adopted, and fermentation microorganisms come from preferable microorganisms in natural raw materials of the helianthus tuberosus, helianthus tuberosus tragon and the like, so that the helianthus tuberosus ferment is green and safe, notable in efficacy and strong in pertinence, has notable efficacy of improving flora of intestinal tracts of human bodies, resisting metabolic diseases of diabetes, high blood lipid and the like, eliminating free radicals, resisting oxidation, enhancing immunity, resisting tumors and the like, effectively strengthens metabolism, and achieves the purpose of strengthening bodies when being used for complementing ferment of the human bodies.

Provided is a vehicle combination instrument LCD alarm display unit. The vehicle combination instrument LCD alarm display unit comprises a storage module, a control module and a display module, the control module comprises a judgment module, and the display module comprises a main display area and a failure small icon display area. A display method comprises the steps that during driving, firstly,the judgment module conducts alarm type judgment according to whole-vehicle signals collected in real time and acquires an alarm icon in the storage module and sends the alarm icon to the display module, then driving information which the main display area displays is replaced by a big icon of an alarm, and meanwhile an alarm small icon display area displays a small icon of the alarm; after duration time of m, the main display area displays the driving information again, and the alarm small icon display area displays the alarm and small icons of other alarms at the same time; when the alarm is cleared, the small icon of the alarm disappears accordingly. The design not only makes full use of the display areas and ensures the attractiveness, but also achieves effective reminding on the condition that a driver is not distracted.

A high-speed air-exhausting and defoaming stirring machine comprises a stirring machine shell and a transmission component, wherein a feeding inlet is formed in the top of the stirring machine shell; a discharging outlet is formed in the bottom of the stirring machine shell; a stirring rod is arranged in the stirring machine shell and connected with the stirring machine shell through a fixing frame; the transmission component is connected with the stirring rod. The high-speed air-exhausting and defoaming stirring machine is further provided with an exhaust fan which is connected with the stirring machine shell through an exhaust pipe and the exhaust pipe is communicated with the inside of the stirring machine shell. When the high-speed air-exhausting and defoaming stirring machine is used for stirring filling slurry, air in the filling slurry can be exhausted through the exhaust pipe. Therefore, the full package degree of the filling slurry is increased, an air blockage phenomenon is avoided, and conveying efficiency is improved.

The invention relates to an aluminate hydrate wash liquor digestion method in the manufacturing process of an aluminium oxide by a sintering method, which is characterized in that the method comprises the following steps: the aluminate hydrate wash liquor is evaporated and concentrated, and then enters a seed separation evaporator for evaporation, and serves as ingredients with seed separation mother liquor in the desilication process. In the method, the aluminate hydrate wash liquor in the sintering method drops out of the clinker digestion correction liquor, is directly sent to the evaporator for evaporation after being sprayed, evaporated and concentrated in a clinker kiln cooler, and is used as the seed separation liquor, thus optimizing the digestion, separation and washing techniques of the sintering method, truly realizing the technique requirement of low caustic ratio digestion, reducing the occurrence of secondary reaction of the system, being advantageous for the stability of slurry index and the high-yield and steady operation of the clinker kiln, being capable of decreasing the crude liquor ak value by 0.02 under the condition of unchanged clinker [N/R], improving the net digestion rate of the aluminium oxide by as high as 0.5%, solving the problem of the destination of aluminate hydrate wash liquor fundamentally.

The invention relates to a processing method of concentrated clear apple juice with high color value stability. The processing method comprises the following steps: (1) purchasing , checking, accepting, cleaning and sorting of apples; (2) pretreatment and dicing; (3) pulping, juicing and color protecting; (4) sterilizing and cooling; (5) multi-enzyme co-carrier immobilization clarification; (6) adsorption with nanofiber modified resin ; (7) concentrating; and (8) filling, bottling and sterilizing. The method disclosed by the invention meets market demands, develops the concentrated clear apple juice with a stable color value, has a good cleaning effect, is safe and residue-free, can well remove residual pesticides, kill rot-causing fungi, improve the color and luster of fruit juice and reduce phenolic substances in the fruit juice, achieves the effects of clarification and stabilization, eliminates an ion concentration in the clear fruit juice, improves the quality of the fruit juice, and maintains the original flavor and quality of the apple juice are to the greatest extent.

The invention relates to a preparation method and application of an asphalt test piece. The preparation method for the asphalt test piece comprises the following steps: fusing asphalt and uniformly mixing the fused asphalt and a filling material so as to obtain an asphalt mixture, wherein a weight ratio of the asphalt to the filling material is 1: 1.5 to 1: 2.4; preparing an asphalt mixture bar-shaped material with a length of 80 to 200 mm in a die from the asphalt mixture; and winding a 60-mesh to 300-mesh metal net on the external surface of the asphalt mixture bar-shaped material so as to obtain the asphalt test piece. The invention provides a testing method which better accords with an actual state of the asphalt during combustion of the asphalt mixture and better embodies flame retardation performance of albanite during combustion of pavement asphalt, and the asphalt test piece is applicable to testing of flame retardation performance of any road asphalt and does not pollute analytical equipment and a work environment.

The invention discloses a power generation and refrigeration combined system. A generator absorbs a low-grade heat source. An inlet of a turbine assembly is connected with a steam outlet of the generator. A power generator is driven by mechanical energy output by the turbine assembly to operate to generate electric energy and supply the electric energy to electric energy users. An outlet of the turbine assembly is connected with a steam inlet of an absorber. A solution outlet of the absorber is connected with an inlet of a pump, and an outlet of the pump is connected with a solution inlet of the generator. A solution outlet of the generator is connected with an inlet of a first throttle valve. An outlet of the first throttle valve is connected with an inlet of a separator. A steam outlet of the separator is connected with a hot side working medium inlet of a condenser. A hot side working medium outlet of the condenser is connected with an inlet of a second throttle valve. An outlet of the second throttle valve is connected with a refrigerant inlet of an evaporator, and a refrigerant outlet of the evaporator is connected with the steam inlet of the absorber to cool cold energy user fluid. A solution outlet of the separator is connected with an inlet of a third throttle valve, and an outlet of the third throttle valve is connected with a solution inlet of the absorber. The system provides the refrigerating capacity and ensures the generating capacity.

The invention relates to a separating and recycling method for papermaking pulp sludge, and belongs to the technical field of papermaking. The method comprises the following steps: controlling a concentration of papermaking white water; adjusting and controlling a source of the sludge: performing primary filtration on the sludge through a pulping concentration inclined mesh and a filter nylon mesh, then allowing the sludge to pass through a large inclined mesh nylon mesh to flow to a sewage primary-sedimentation tank, wherein a mesh surface area of the pulping concentration inclined mesh is enlarged, the mesh surface area is enlarged by 33%, a mesh number of the filter nylon mesh is increased, the mesh number is increased by 66%, and a mesh number of the large inclined mesh nylon mesh is increased, and the mesh number is increased by 50%; and performing recycling on the sludge subjected to separation. The method provided by the invention has the following beneficial effects: the high-mesh multi-stage filter screen effectively reduces a concentration of wastewater; in the concentration control system of treating the white water by a paper machine, a type of a forming net is changed,a ternary retention aid and a dry strength agent are adopted, so that a retention rate of fine fibers and fillers is greatly improved, and difficulty of post-treatment of the wastewater is reduced; and an industrial water recycling system for papermaking pulping is ungraded.

The invention discloses an electronic schoolbag in seamless joint with a traditional classroom. The electronic schoolbag mainly comprises a host, a connection protective jacket, electronic writing paper and a magnetic pen. The electronic writing paper is connected with the host through a data line, the host is provided with an electronic paper display screen made of E-ink or SiPix, a TF card is adopted to serve as an external memory, the host is connected with the electronic writing paper through the connection protective jacket which plays roles in packing and protecting when the electronic schoolbag is put away, a magnetic pen cap is arranged at a position, between the host and the electronic writing paper, of the connection protective jacket and serves as a deposit position of the magnetic pen, and the display screen is a touch screen and is mainly used for function operation. According to the electronic schoolbag, the weight of a traditional schoolbag is lightened, traditional books are electronized, the traditional schoolbag and the books are in seamless joint with the traditional classroom on the basis that use functions of the traditional schoolbag and the books are not changed, the problem that books are brought every year or expensive palm computers are used is avoided by using of electronic books, and educational burdens are relieved.

The invention discloses a biological phosphorus remover used in biochemical treatment of sewage. The biological phosphorus remover comprises a shell (2) and a cover (1), wherein the cover (1) is connected with the shell (2) in a matching manner; a mixed liquid inlet (12) is formed in the shell (2); a sludge filter (3) is arranged inside an inner cavity of the shell (2); a cavity is formed between the sludge filter (3) and the shell (2); an inlet of an ejector (11) is formed inside the sludge filter (3); an outlet tube (4) of the ejector (11) is connected with an outlet (6) through a first valve (5), and is connected with a high-phosphorus water outlet (10) through a second valve (9); the ejector (11) is connected with a compressed air tube (8); a third valve (7) is mounted on the compressed air tube. The biological phosphorus remover is capable of ensuring a phosphorus removal effect, is free of residual sludge discharge, is free of phosphorus removal water treatment drug and is used in the biochemical treatment of sewage.

The invention relates to an anti-fatigue driving safety system. The anti-fatigue driving safety system comprises a camera, a control device and an acoustic-optic alarming device, wherein a microprocessor is arranged in the control device, the camera and the acoustic-optic alarming device are connected with the microprocessor respectively through a communication wire, the microprocessor is connected with an automobile central control system, and the automobile central control system can be used for controlling a brake device of an automobile . By adopting the anti-fatigue driving safety system, the current state of a driver can be detected through the position of the head of the driver, the detection device does not need to be in contact with the head of the driver, the attention of the driver is not influenced, the driving comfort of the driver is guaranteed, and the safety of the driver when in fatigue driving can be guaranteed.

The invention provides a defoamer composition for pharmaceutical production, which is prepared from the following components in parts by mass: 20-60 parts of dimethyl silicone oil, 20-30 parts of polymethylsiloxane, fluorosilicone oil 2‑10 parts, 4‑8 parts of thickener, 10‑15 parts of emulsifier, 10‑100 parts of deionized water. The defoamer composition can efficiently eliminate and suppress foaming, has stable performance, less dosage, is non-toxic and environment-friendly.

The invention relates to the technical field of nano materials, in particular to an attapulgite nano material and a preparation method and application thereof. The preparation method of the attapulgite nano material comprises the following steps that attapulgite and a nano material are mixed and then subjected to ultrasonic shock treatment, and the attapulgite nano material is obtained. The preparation method is easy to implement, strong acid is not needed for heating, and pollution to the environment and damage to nano materials are lowered. In addition, the attapulgite and carbon nano tubes can form mixed micelles adsorbed on the surface of the carbon nano tubes, and the micelles mutually repel each other through the electrostatic effect, and the agglomeration and mutual intertwining of the carbon nano tubes are hindered.