268results about How to "Reduce the chance of exposure" patented technology

The invention discloses an intelligent hazardous chemical substance warehouse management system. The management system comprises an automatic warehouse checking unit, a real-time warehouse management unit, a warehouse environment monitoring unit, a background control server and a goods management unit based on an electronic tag. According to the automatic warehouse checking unit, a robot automatically checks goods information based on a self-established storage environment map. The real-time warehouse management unit carries out real-time positioning and recording on the positions and in-out warehouse states of goods. A warehouse data collecting unit carries out on-line monitoring on the warehouse environment in real time, and transmits the monitored data to the background control server. The background control server coordinates the cooperation among the units and stores and manages the data uploaded by the units. The whole operation procedures are organically combined through the scheme, workers work more efficiently, the contact probability between the workers and hazardous chemical substances is greatly reduced, potential safety hazards are reduced, and the humanized management mode is shown.

The invention relates to a bionic wear-resisting deep-digging shovel blade, which comprises two bionic wear-resisting structural forms, i.e. a rib form and a lug form. The bionic wear-resisting deep-digging shovel blade is based on the characteristic of a geometry structure on the shell surface of aquatic mollusk which can resist the abrasion of grinding materials. The bionic wear-resisting ribbed structural shape is that: y=asin(bx+c), wherein a indicates amplitude, b indicates frequency, c indicates an initial phase position, a is more than 0 and is less than or equal to 10mm, bx minus c is more than or equal to 0 and is less than or equal to pi, and x is more than or equal to 0 and is less than or equal to 20mm, and the distance between two adjacent ribs is that: L is more than 0 and is less than or equal to 50mm; and the lug bionic wear-resisting structure is characterized in that a contour of the lug bionic wear-resisting structure is a spherical-crown shape: x<2>+y<2>+z<2>=r<2>, wherein x is more than or equal to 0 and is less than or equal to 10mm, y is more than or equal to 0 and is less than or equal to 10mm, z is more than or equal to 0 and is less than or equal to 10mm, r is more than or equal to 0 and is less than or equal to 12mm, and a distance L between every two lugs is that: L is more than 0 and is less than or equal to 50mm. The ribbed structure and the lug structure are suitable for different deep-digging shovel blades of different forms. The wear resistance of the bionic wear-resisting deep-digging shovel blade is improved by 50 percent compared with that of a traditional shovel blade with a smooth surface.

The invention belongs to the field of medical intermediate and particularly relates to a synthesis method of cefepime hydrochloride. The method comprises the following steps: adding (6R,7R)-7-amino-3-[(1-methyl-1-pyrrolidine)methyl]cef-3-ene-4-carboxylic acid hydrochloride and AE active ester in a mixed solvent of water and a water-soluble organic solvent; adjusting the pH value to 5.5-7.5, and performing an acylation reaction while keeping the temperature; extracting after the reaction, and recycling the organic phase through reduced pressure distillation; and adjusting the pH value of the water phase with hydrochloric acid, and crystallizing to prepare cefepime hydrochloride. The reaction is milder and adopts an acidic or nearly neutral environment, the influence of the reaction on cefepime is lower, the reaction is easier to control, the degradation probability and ring opening probability can be reduced, the purity of the finished product can be increased, the yield of cefepime can be increased, the quality of cefepime can be increased and the purity is above 99.5% through high performance liquid chromatography (HPLC) detection.

Embodiments of the invention disclose a shooting parameter adjustment method and a shooting terminal. The shooting parameter adjustment method can comprise the following steps: monitoring a current light intensity value and a current color temperature value of a shooting environment; obtaining a pre-stored light intensity adjustment value matched with the current light intensity value; obtaining a pre-stored color temperature adjustment value matched with the current color temperature value; adjusting the light intensity value of a flashlight used by a camera according to the obtained light intensity adjustment value; and adjusting the color temperature value of the flashlight used by the camera according to the obtained color temperature adjustment value. The shooting parameter adjustment method in the technical scheme provided by the embodiments of the invention is beneficial to reduce the exposure probability of shot pictures and improve the quality of the shot pictures.

The invention discloses a method for simultaneous determination of various fat-soluble vitamins in serum by using a semi-automatic sample treatment liquid chromatographic technology; the HPLC method is adopted, and the chromatographic conditions comprise that a mobile phase A is a 0.05% trifluoroacetic acid aqueous solution, a mobile phase B is a 0.02% trifluoroacetic acid methanol-ethanol mixed solution, and gradient elution is adopted; the various fat-soluble vitamins are selected from vitamin A, vitamin D2, vitamin D3, alpha-tocopherol, beta-tocopherol, gamma-tocopherol, delta-tocopherol, K1, K2 or Q10. Through optimization of a sample pretreatment method and high performance liquid chromatographic conditions, the method for simultaneous determination of the various fat-soluble vitamins in the serum is established, can carry out precise qualitative and quantitative analysis, is a detection method having the advantages of simple and fast sample processing, high flux, reliable result and low cost, has the advantages of strong specificity, high sensitivity, simple operation, low cost and the like, has easily analyzed and objective results, and is especially suitable for clinical popularization and application.

The invention relates to the field of lithium ion battery material, especially relates to a method for improving storage performance of lithium cobalt oxide at high voltage and high temperature. The traditional two stage method is employed by the invention, and comprises the following steps: adding special additives and controlling high temperature reaction temperature, obtaining lithium cobalt oxide products of particle size which accords with the requirement, doping additives into the lithium cobalt oxide structure, thereby guaranteeing the structure stability of lithium cobalt oxide during excess lithium removing under high voltage. The key step is that the synthesized finished product lithium cobalt oxide which accords with the requirement is used as raw material, a very simple surface treatment is used without high temperature treatment once more, thereby greatly improving high temperature storage performance under high voltage.

The invention relates to a metal reinforcement structural wall plastic pipe and a manufacture method thereof. The metal reinforcement structural wall plastic pipe comprises a plastic pipe and is characterized in that at least one metal sheet reinforcement is wound along the outer wall of a plastic pipe; and the metal sheet reinforcement comprises a metal sheet as well as hot melting glue, a blocking layer, hot melting glue and plastics which are sequentially coated at the outer layer. The method for manufacturing the metal reinforcement structural wall plastic pipe is characterized by comprising the following steps of: (1) pretreating; (2) coarsening and heating; (3) coating the hot melting glue and the blocking layer; (4) manufacturing the metal reinforcement; (5) bending and moulding; (6) overlapping, jointing and heating; (7) bonding on the surface of the plastic pipe; and (9) cutting to form a finished product. Compared with the traditional steel plastic winding drainage pipe, the invention has the advantage of adding the hot melting glue between the reinforced metal sheet and the plastics so that the plastics and metal are tightly bonded into a whole. A protecting layer can prevent the metal reinforcement of the plastic pipe from damage in construction and rusting.

The invention provides a processing method of charcoal-grilled macadamia nuts. The charcoal-grilled macadamia nuts produced by the invention do not contain any additive, and retain the unique fragrance of macadamia nuts. Through low-temperature gradient drying, the nutrient loss is reduced, macadamia nut kernels and shells are effectively separated, and the harm to the kernels caused by opening making is reduced, and the problem that the kernels change color caused by directly baking at high temperature and the shells easily crack caused by directly baking at high temperature is voided. A macadamia nut opening sawing machine is adopted to perform full opening on the nut shells so as to solve the problem of hard opening of macadamia nuts, and the macadamia nuts are more convenient to eat. High-temperature aroma-strengthening promotes Maillard reaction, fully releases the aroma of the macadamia nuts, then performs sterilization and disinfection, reduces water content, and extends shelf life; and the vacuumizing packing reduces oxygen content, and extends shelf life. The method has a specific process, and is simple. The processed macadamia nuts are rich in nutrients, crispy in taste,strong in carbon flavor, easy to peel, not greasy, and long in preservation time.

The invention discloses a bridge joint seam early strength UHPC material, which is characterized in that the bridge joint seam early strength UHPC material comprises silica fume, limestone powder, cement, river sand, mixing water, a water reducing agent and steel fibers, and an addition ratio of the cement to the silica fume to the limestone powder to the river sand to the mixing water to the water reducing agent is (0.7-1.0): (0.1-0.2): (0.1-0.2): (0.8-1.1): (0.15-0.20): (0.02-0.05). The invention further discloses a preparation method of the bridge joint seam early strength UHPC material. According to the bridge joint seam early strength UHPC material, a cementing material in UHPC is replaced with a large amount of inert material, so that the early strength is high, the later strength iscontinuously increased, and the phenomenon of strength reduction cannot be caused by early loading. A wet joint constructed by using the concrete has the respective advantages of a traditional wet joint and a glue joint, the purpose of rapid construction can be achieved, and the advantages of continuity of common reinforcing steel bars, low requirement for construction and manufacturing precision, good durability and the like are achieved.

The invention relates to the technical field of oil field oil production engineering, and particularly belongs to an alkali-resistant film-coating propping agent suitable for ASP compound flooding. The propping agent mainly solves the problems that an existing coating film propping agent is not resistant to alkali, the propping agent is transferred in the ASP compound flooding process, accordinglyfracturing cracks are closed, and fracturing measures fail. The propping agent comprises, by weight, 90-93% of quartz sand, 2.5-5% of alkali-resistant resin, 1.3-3.6% of a curing agent, 0.07% of a silane coupling agent, 1.5% of a diluent and 0.5% of a lubricant. The alkali resistance of the film-coating propping agent is improved, so that the film-coating propping agent still has relatively highcompressive strength under a strong alkali system of ASP compound flooding, and requirements of the ASP compound flooding oil-water well fracturing measures are met.

The invention provides a positive plate and a lithium ion battery comprising the positive plate; the positive plate comprises a positive current collector and a positive coating, the positive coatingcomprises a first coating and a second coating, the surface of the positive current collector is coated with the first coating, and the surface of the first coating is coated with the second coating;the binding power between the first coating and the positive electrode current collector is greater than the binding power between the first coating and the second coating, and/or the binding power between the first coating and the positive electrode current collector is greater than the binding power between positive electrode active material particles of the second coating, and after the positive coating of the positive plate is stripped, the total mass of the residual positive coating on the positive electrode current collector accounts for more than 10% of the total mass of the positive coating on the positive electrode current collector before stripping, so that the obtained lithium ion battery has good safety performance, and the probability of fire failure of the battery is greatlyreduced when mechanical abuse (needling and heavy impact) occurs.

The invention discloses a regeneration method of an amination catalyst of polyetheramine used for polyether polyol hydro-amination. The method comprises the following steps: A) adding an inactivated amination catalyst in an organic acid solution, heating the material for backflow, filtering the material, washing the material, and drying the material; B) performing carbon burning regeneration on the amination catalyst obtained through washing and drying treatment under existence of hydrogen peroxide to obtain the amination catalyst after roasting regeneration; and C) using hydrogen for reducingthe amination catalyst after roasting regeneration to obtain the amination catalyst after reduction regeneration. The regeneration processing method solves the problem of inactivation of the amination catalyst due to coking even carbon formation, active ingredient copper sintering of the catalyst, and Ni0 crystal-phase aggregation. The regeneration method mainly used for preparing the amination catalyst of polyetheramine for polyether polyol hydro-amination.

A bionic excavating spade comprises a spade body, wherein the two faces of the spade body are an inner soil contacting face and an outer soil contacting face respectively, the front end of the spade body is the soil entering end, the rear end of the spade body is a top wing, the middle of the top wing bends in an arc shape toward the inner soil contacting face, an inner excavating face is arranged on the spade body, extends to the top wing from the soil entering end and bends toward the inner soil contacting face, one ends of two boundaries of the inner excavating face and the outer soil contacting face are connected with the two ends of the arc bending part of the top wing, and the other ends of the two boundaries are tangent to the side edges of the spade body. The geometrical shape of the soil contacting surface of the spade is improved, so that anti-drag and desorption performance of the spade is improved, the problems that in the excavating process of the spade, the resistance is large, adhesive performance is high, and abrasion resistance is poor are solved fundamentally, compared with a traditional spade, the abrasion resistance of the bionic spade is improved by 50%, and the anti-drag and desorption performance is improved by 70%.

The invention provides an ash removing device and method for a fiber drawing furnace. The ash removing device comprises a gas guide-in device, a negative pressure suction device and a pressure control device, wherein the top of the gas guide-in device is connected with the bottom of the fiber drawing furnace in a sleeving manner; the bottom of the gas guide-in device is connected with a lower furnace tube in a sleeving manner; the negative pressure suction device is arranged on the top of the fiber drawing furnace and communicates with an upper furnace tube; the pressure control device comprises a pressure detector, a PLC and a pressure adjuster; the pressure detector is arranged in the gas guide-in device; the pressure adjuster is arranged in the negative-pressure suction device; an input end of the PLC is connected with the pressure detector; and an output end of the PLC is connected with the pressure adjuster. By the ash removing device and method for the fiber drawing furnace, ash removing efficiency of the fiber drawing furnace can be improved, a fiber processing environment is improved, and the period of stopping for ash removal of the fiber drawing furnace is prolonged.

The invention provides an air deflector movement mechanism and an air conditioner with the same. The air deflector movement mechanism comprises a base body, a pushing-out structure, an air deflector and a first driving part, wherein the pushing-out structure is movably arranged on the base body and provided with a retracting position and a stretching-out position; the air deflector is rotationally arranged at the end of the pushing-out structure; and the first driving part is arranged on the pushing-out structure and used for driving the air deflector to rotate, a preset distance is reserved between the axis of the air deflector and the first driving part, and the first driving part drives the air deflector to rotate through a transmission mechanism. By applying the technical scheme, the problem that in the prior art, the moment of an air deflector movement mechanism is insufficient can be effectively solved.

The invention relates to a preparation method of a trichlorophenol blocked isocyanate prepolymer micelle. The invention provides a trichlorophenol blocked isocyanate prepolymer micelle which can be stable in a water solution for more than 3 months under the condition of high R value and can be subjected to unblocking reaction at low temperature (110 DEG C). The method comprises the following steps: 1. carrying out vacuum drying on polyethyleneglycol; 2. mixing and stirring the polyethyleneglycol, DMPA (dimethylolpropionic acid) and a composite solvent, introducing nitrogen, and keeping the temperature to react; 3. dropwisely adding HDI (hexamethylene diisocyanate) or TDI (toluene diisocyanate) to prepare the prepolymer; 4. blocking; 5. emulsifying; and 6. removing the solvent to obtain the trichlorophenol blocked isocyanate prepolymer micelle. The product provided by the invention can be used as an adhesive for artificial boards, a crosslinking agent or a single-component environment-friendly adhesive; and the product can be used in the fields of wood paints, leather coating agents, water-based adhesives and the like, and can also be used in the fields of enamel wires, textiles, leather, paper conditioning agents and the like.

The invention relates to the field of medical apparatuses, and discloses a combined assembly of a bottle for medicine and an injection device. The combined assembly comprises the bottle for medicine and the injection device, wherein the bottle for medicine comprises a bottle body the inner wall of which is a straight tube; a piston is arranged in the bottle body close to a bottle opening; a push plate is wrapped in the piston, and a needle guide hole is arranged in the centre of the push plate; a sealing rubber plug and a close cover are arranged at the bottle opening; the injection device comprises an injection tube; an inner needle located in the injection tube is arranged at the bottom of the injection tube, and a trocar needle is arranged outside the inner needle; the trocar needle is greater than the needle guide hole in diameter; the needle head of the inner needle extends out of the trocar needle, the tail part of the inner needle is communicated with the outlet of the injection tube, and an outer needle is arranged at the outlet of the injection tube; and the inner tube wall of the injection tube is in clearance fit with the outer edge of the bottle opening.

The invention relates to a production method for polyurethane enveloped controlled release fertilizer. The production method comprises the following steps: preheating granulated fertilizer in a fluidized bed in a fluidizing state; atomizing liquid paraffin, and pretreating the surface of the granulated fertilizer; mixing polyatomic alcohol and isocyanate in a nozzle, atomizing the mixture fast, and spraying the mixture onto the surface of the granulated fertilizer; controlling material adding speeds to ensure that polyurethane reaction can be fulfilled fast; adding liquid paraffin and carrying out surface anti-sticking treatment after the filling of reaction materials. According to the invention, the fluidized bed is adopted as enveloping equipment, polyatomic alcohol and isocyanate are used for spraying and enveloping after being premixed, and the adding speeds are regulated in a matched manner, so that the whole enveloping reaction process is fast and continuous. The production method can improve the polyurethane enveloping efficiency to a relatively large extent, and ensure relatively stable and reliable quality of the enveloped fertilizer due to continuous reaction.

The invention provides an MEMS microphone and a forming method thereof. According to the MEMS microphone, a first projection is arranged on a single-arm beam which is used as a movable sensitive film at a part that is next to a free end area, thereby reducing a possibility that the single-arm beam contacts with other components in a chamber. Furthermore an insulating layer covers the first projection so that static charges are not discharged through the movable sensitive film even after the first projection contacts with other components because of electrostatic attraction, thereby preventing a noise in the MEMS microphone.

The invention discloses a clinism gravitational settling living cell trapping equipment, which contains tilted settling vessel main body (1), feeding throat (2), liquid receiving mouth (3), and refluxing opening (4). It is characterized in that it contains ribs strips (6). Cross section of the said settling vessel main body is oval shape, feeding throat (2) is set on superior extremity of the main body (1), liquid receiving mouth (3) is set at the back of connecting piece of the main body (1), refluxing opening (4) is set at inferior extremity of the main body. The said ribs strips are set in the bottom of the internal surface of the main body. The trapping equipment of this invention is fit for different reactor and has a wide dabbling rate scope. The invention reduces the deposition of cells at bottom of the settling vessel, shortens the mean detention time of cells outside the reactor, and relieves the entire activity descend and environmental aggravation caused by cell deposition.

The invention relates to the technical field of display, and discloses a flexible display device. The flexible display device comprises a substrate, an insulating layer arranged on the substrate, an organic light emitting device body arranged on the insulating layer, and an encapsulation layer arranged on the organic light emitting device body and used for sealing the organic light emitting device body, wherein cutting grooves are formed in a packaged region in the connecting position between the insulating layer and the encapsulation layer. According to the flexible display device, by forming the cutting grooves in the packaged region in the connecting position between the insulating layer and the encapsulation layer, an effect of prolonging a path of water which enters the packaged region and then is in contact with the organic light emitting device body is achieved, thereby improving the encapsulation effect of the encapsulation layer, effectively lowering probability of water in entering the encapsulation layer, improving the body encapsulation success rate, also prolonging the service life of the organic light emitting device body, and further prolonging the service life of the flexible display device.