614results about How to "Economical and practical" patented technology

A process for separating the components of lignocellulosic biomass for the purpose of producing a pure reactive cellulose is disclosed. The process has two stages. In the first stage, the lignocellulosic biomass is pretreated with steam, with or without an acid catalyst, and then pressed, with or without the presence of an eluent, to remove hemicellulose and other impurities. In the second stage, the pretreated biomass is extracted with a solvent such as ethanol with or without acid catalysts in order to remove lignin and release a purified cellulose stream. The extracted cellulose is then rapidly decompressed to rupture the fibrous structure. The process provides a purified cellulose stream that is relatively easy to hydrolyze with enzymes and ferment to biofuels and other chemicals such as ethanol.

The invention discloses a falling multifunctional measuring device for an impact test of soft composite materials, comprising an impact test unit. The device is also provided with a transient force and displacement testing unit which comprises a sensor supporting sleeve, a piezoelectric force sensor, a grating bar, a photoelectric sensor, a stabilized voltage supply, a charge amplifier and a signal amplifier. The testing unit can be arranged in the impact test unit in a detachable way; the piezoelectric force transducer is positioned in the sensor supporting sleeve, and the input end thereof is connected with the charge amplifier; the sensor supporting sleeve is arranged at the upper end of a hammer head; the grating bar and the sensor supporting sleeve are positioned at the same horizontal line; the grating bar can move synchronously with the hammer head and a base thereof is provided with the photoelectric sensor; the photoelectric sensor is positioned below the grating bar and the excitation voltage thereof is provided by the stabilized voltage supply; and the signal output end of the photoelectric sensor is connected with the signal amplifier. The device has simple structure, high integration level and low cost, and can provide testing data of composite materials in a small energy test.

The invention provides a high hardness ferrite stainless steel wearable flux-cored wire, which takes a low carbon steel H08A cold rolling thin steel strip as an external wrapper; furthermore, the wrapper is internally provided with a powder core which is composed of graphite, metal and alloy powder; the weight percentages of all ingredients of the powder core are 50-75% of high carbon ferrochrome, 10-16% of ferrovanadium, 6-10% of ferrotitanium, 2-10% of tungsten carbide, 2-3% of nickel powder, 1.5-2.5% of silver graphite, 1-3.5% of boron carbide, 1-2% of aluminium magnesium powder, 0-10% of metallic chromium, and the residual quantity of reduced iron powder; the filling proportion of the powder core is 46-50%; the invention adopts the technical proposal that high-content ferrovanadium and adequate alloy powders such as tungsten carbide and boron carbide, etc. are added into the flux-cored wire, changes the microstructure of the existing ferrite stainless steel flux-cored wire surfacing alloy, overcomes the shortages of poor wearability and ductility, and can be applied to submerged arc bead weld manufacture or repair of the parts which has high requirement of abrasion and the corrosion resistance of the wearable grain.

Materials and a method are provided whereby polymers with least 0.5 mole % of the pendant group or end group containing —Si(OR″)3 (where R″ is H, an alkyl group, Na, K, or NH4) are used to control aluminosilicate scaling in an industrial process having an alkaline process stream such as a pulping mill process stream. When materials of the present invention are added to the alkaline process stream, they reduce and even completely prevent formation of aluminosilicate scale on equipment surfaces such as evaporator walls and heating surfaces. The present materials are effective at treatment concentrations that make them economically practical.

Process for producing nanomaterials such as graphenes, graphene composites, magnesium oxide, magnesium hydroxides and other nanomaterials by high heat vaporization and rapid cooling. In some of the preferred embodiments, the high heat is produced by an oxidation-reduction reaction of carbon dioxide and magnesium as the primary reactants, although additional materials such as reaction catalysts, control agents, or composite materials can be included in the reaction, if desired. The reaction also produces nanomaterials from a variety of other input materials, and by varying the process parameters, the type and morphology of the carbon nanoproducts and other nanoproducts can be controlled. The reaction products include novel nanocrystals of MgO (percilase) and MgAl2O4 (spinels) as well as composites of these nanocrystals with multiple layers of graphene deposited on or intercalated with them.

The invention discloses a rockburst grade predicting method based on an information vector machine to mainly solve the problem that in the current underground engineering construction process, the rockburst geological disaster prediction effect is not good. A rockburst evaluation index and a grading standard are selected, and domestic and overseas great deep rock engineering rockburst instances are widely collected to establish an abundant training sample library. A cross validation strategy is utilized for training an IVM model with the superior statistics mode recognition performance, accordingly, a nonlinear mapping relation between the rockburst evaluation index and the rockburst grade is established, model initial parameter setting and the training sample library are adjusted according to the training result, and the IVM model predicting the rockburst grade is finally established. By means of the method to predict the rockburst grade, the complex mechanical analysis or calculation is not needed, only the input feature vector of a sample to be predicted needs to be input in the prediction model, and then the prediction value of the rockburst grade can be obtained. The method is economical, efficient and high in prediction precision and has good engineering application prospects.

An air freshener apparatus to atomize and diffuse liquids or suspensions into a mist by means of conversion of collected solar energy into thermal radiation passed through a wire for optionally heating said liquids and conversion of solar energy into electrical energy stored in batteries and used for subsequent atomization of said optionally heated liquids by means of piezoelectric ultrasonic vibrations. In one embodiment, the resulting mist and fragranced aromas of atomized liquids or suspensions are communicated through housing vent openings to an external environment such as a room or an automobile. In an alternative embodiment, additional diffusion of said atomized liquids and associated fragranced aromas is achieved by means of connecting the present invention, with its attachable clip, to the louvers of a building's or an automobile's ventilation system that, when blowing air, provides additional diffusion of fragrance into the air inside of a building or an automobile.

The invention discloses a drilling machine for processing hardware accessories with automatic dust removal function, which comprises a fixed plate, the bottom of the fixed plate is fixedly connected with a workbench, the top of the fixed plate is fixedly connected with a top plate, and the bottom of the top plate is away from the side of the fixed plate A cylinder is fixedly connected, and the bottom of the cylinder is fixedly connected with the top of the motor casing through the ejector rod. A drilling motor is installed inside the motor casing, and a drill pipe is fixedly connected to the output shaft of the drilling motor. The end of the drill pipe is far away from the drilling motor. It penetrates through the motor casing and extends to the bottom of the motor casing and is fixedly connected with the top of the drill bit. The drilling machine for hardware accessories processing with automatic dust removal function, through the installation of a dust removal device, realizes the effect of cleaning the waste chips and particles generated during drilling while drilling, avoiding the impact of waste particles on normal work, and improving It not only improves work efficiency, but also avoids the potential safety hazard caused by waste particles to the health of staff.

A system of securing access to vehicle control systems using non-persistent identifiers. Identifiers are received and stored at the commencement of vehicle operations. Restricted events are detected and confirmation identifiers are requested, in order to continue vehicle operations. If confirmation identifiers are not presented, vehicle operations enter caution mode, and access to vehicle controls is restricted. Upon termination of a vehicle trip, the non-persistent identifiers are discarded. The system provides a convenient, low-overhead, secure means of regulating access to vehicle control systems.

The invention discloses a whiteleg shrimp high-density non-water-replacement breeding method based on nitrobacterium cenobium water quality control. The method includes the following steps of firstly, preparing a breeding pond; secondly, disinfecting the breeding pond and culturing probiotics; thirdly, stocking shrimp larvae; fourthly, putting in feed; fifthly, monitoring and managing the water quality of the breeding pond; sixthly, conducting harvesting. According to the method, by reasonably controlling organic carbon source input, scientifically applying beneficial bacterium preparations such as nitrobacterium, bacillus, lactic acid bacteria and photosynthetic bacteria, culturing the microorganism cenobium, namely the nitrobacterium cenobium, with nitrobacterium as the advantage in an oriented mode in the breeding water environment and meanwhile reasonably controlling the concentration of nitrobacterium cenobium and conducting in-situ biological purification on ammonia nitrogen and nitrite, closed type safe and efficient breeding of whiteleg shrimps is achieved.

The invention discloses a preparation method of a modified active carbon-based gasoline desulfurization adsorbent, and relates to a preparation method of a gasoline deep desulfurization adsorbent. The adsorbent is a Fe ion-loaded active carbon adsorbent; and the preparation method comprises the following steps of: performing cleaning pretreatment of the raw material of the adsorbent carrier particles; drying the pretreated carrier particles, mixing the carrier particles with a nitric acid solution, performing backflow and electromagnetic stirring; washing the oxidized carrier particles; drying the carrier particles; roasting to modify the dried particles; and steeping the carrier particles and a soluble ferric salt solution; drying the steeped carrier particles; and roasting to activate the dried particles. The preparation process is simple and easy to implement and realizes easy regeneration; the service life of the adsorbent is long; the adsorbent has high adsorption capacity and adsorption selectivity on thiophene and derivatives thereof in gasoline; the adsorption process is performed in a normal-temperature normal-pressure condition, and the operation cost is low; and no pollutant is generated in the adsorption process, good economic practicability is realized, and environmental protection requirements are met.

A single dual mode monolithic focal plane array having an active sensor and a passive sensing capability is switched from one mode to the other by switching the bias across the cells of the array from a passive IR mode to an active LADAR mode, with the monolithic dual mode focal plane array having applications in missile target seekers and laser target designators. The switching is accomplished by increasing the gain of the array by as much as 30 times that associated with IR detection when laser return pulses are expected. Thus, there need be no mechanical changes to the array to afford both passive IR sensing and an active LADAR pulse detector. Nor need there be two different focal plane arrays, one for IR and one for laser radiation, which leads to boresighted alignment problems.

The invention discloses a chiral phosphine ligand or an enantiomer, a racemate or a diastereoisomer thereof and a transition metal catalyst comprising the chiral phosphine ligand, wherein the structure of the chiral phosphine ligand is shown as in formula I in the specification. The invention also discloses an application of the chiral phosphine ligand or the transition metal catalyst and a method for efficiently synthesizing chiral beta-aryl amide by using catalytic hydrogenation. The transition metal catalyst can be used for carrying out asymmetric catalytic hydrogenation reaction, thereby efficiently synthesizing the beta-aryl amide compound with a high optical purity.

The invention discloses a highly-filled unplasticized PVC / CaCO3 composite and its preparing method. Its material composition is in weight share: PVC resin 100 shares, CaCO3 filling agent 1-8 shares, high-molecular modifier 0-40 shares, surface modifier 1-6 shares, heat stabilizer 1-8 shares and lubricant 0.2-5 shares. It can be made by using a double-screw extruder or a double-roller kneader through fusion commixing method. On the condition of improving its shock resistance, it realizes the filling of a large amount of CaCO3 and thus can realize the retainment of its performance and reduce the cost. And it can obtain a series of different-toughness composites by regulating the formula (such as CaCO3 content, sort and use level of CaCO3 surface modifier, proportion of CaCO3 to high-molecular modifier, etc.). In addition, it has simple manufacture process, economic and feasible.

The invention discloses an air conditioner and fan linkage system and a control method. The air conditioner and fan linkage system comprises a fan and an air conditioner. An outdoor temperature sensor, an indoor temperature sensor and an air conditioner controller are arranged on the air conditioner. A fan controller is arranged on the fan. The signal output ends of the outdoor temperature sensor and the indoor temperature sensor are connected with the signal input end of the air conditioner controller. The air conditioner controller is connected with the fan controller. The fan and the air conditioner are separately installed. The startup and the shutdown of the fan are controlled through the air conditioner. The air conditioner can dynamically detect indoor temperature and outdoor temperature and can start up or shut down the fan according to difference between the indoor temperature and the outdoor temperature and the set indoor target temperature. The air conditioner additionally can set and control functions of the fan such as ventilation, startup and shutdown at a fixed period, can fully utilize outdoor cold and heat sources to decrease or increase the indoor temperature and can improve freshness and comfort of indoor air. Therefore, the air conditioner and fan linkage system has the advantages of energy saving, environmental friendliness, high economy and high practicability.

The invention relates to a method for separating emulsions of oil and water, the method comprising incorporating a demulsifying-effective amount of a silicone demulsifier into an emulsion comprising an oil phase and an aqueous phase, the silicone demulsifier having a molecular structure comprising a polysiloxane backbone of at least two siloxane units covalently bound to (i) one or more alkylene oxide groups comprising one or more alkylene oxide units independently having one to five carbon atoms, and (ii) one or more oxirane-containing and / or oxetane-containing groups, wherein said oxirane or oxetane is optionally ring-opened by reaction with a chemical or group capable of ring-opening an oxirane or oxetane ring, respectively, and wherein a solid filler is substantially excluded from the silicone demulsifier and emulsion. The invention also relates to compositions containing the above-described demulsifier and the water and oil phases of an emulsion.

The invention discloses an automobile exhaust degenerating material as well as the application thereof, and relates to an environment-friendly material as well as the application thereof. The invention solves the problems existing in prior automobile exhaust degenerating material that the application scope is small, the cost is high, and the manufacture method is complicate. The automobile exhaust degenerating material of the invention is composed of a nanometer titanium dioxide photocatalyst and a binder by the weight ratio of (1-2):20. The automobile exhaust degenerating material of the invention is used for degrading the automobile exhaust road surface, wherein, the application method of the automobile exhaust degenerating material is of a spraying method or a spreading method. The automobile exhaust degenerating material has the advantages of strong practicality, simple process, easy construction application, wide application scope, less material dosage per unit area and low cost. The efficiency in degrading toxic gases of HC and CO in the automobile exhaust can reach higher than 70 percent, the automobile exhaust degenerating material of the invention can be recycled, and the degradation degree to toxic gases after the automobile exhaust road surface degraded by the invention is flushed by rain can be still maintained above 60 percent.

Disclosed herein is a new improved large planetary gear system used on the input stage of wind turbine power generators. This improved planetary gear system reduces or eliminates lubricant debris traditionally generated from the gear teeth, thereby eliminating an initiating source for bearing failure. To achieve these results, some and preferably all of the gear teeth within the planetary gear system are superfinished using chemically accelerated vibratory finishing to a surface roughness of approximately 0.25 micron or less. Several objects and advantages of the invention are to provide a gearbox with reduced metal debris, improved bearing life, reduced wear, reduced vibro-frictional noise, improved contact fatigue, improved fretting resistance, improved lubrication, to simplify the run-in process, and to enhance the durability and efficiency of the gearbox.

Provided are a power system module allowing a user's requirements to be easily met, and having economic practicality and high integration, and a manufacturing method thereof. The power system module includes a plastic case, a molding type power module package, a control circuit board, and at least one external terminal. The plastic case defines a bottom and a side wall. The molding type power module package is fixed to the bottom of the plastic case and includes at least a power device therein. The control circuit board is fixed to the side wall of the plastic case, includes at least a control device mounted thereon which is electrically connected to the power module package. The external terminal protrudes to outside the plastic case and is electrically connected to the control circuit board.

The EZ Laptop Stand® is a stand for a laptop computer that is very inexpensive, extremely lightweight, easy to assemble and disassemble and folds flat for portability. It is made from foamcore for its light weight, inexpensive material cost, and strength and durability when designed in the manner that it is. Manufacturing is done by laser cutting or die cutting, both methods being cost effective and practical for use with foamcore. There are three models of the EZ Laptop Stand®, the main feature of all three consisting of primary support members, which when folded or hinged at an acute angle at their mid point, create two strong triangular sloped surfaces tapered to a narrower dimension towards the bottom, front edge (the side closest to the user), where feet protrude upward for the laptop computer to rest against. These two primary support members are connected by two smaller cross-members that slide onto them along slots that keep all the pieces of the EZ Laptop Stand® fixed, in a rigid, upright formation on which the laptop computer rests. The EZ Laptop Stand® raises the laptop computer high enough to achieve proper ergonomics for the user while allowing comfortable use of onboard keyboard, high enough to allow adequate ventilation for heat dissipation from under the computer, high enough to provide protection from spilled of beverages, and is inexpensive to buy and simple to disassemble and reassemble for easy portability.The EZ Laptop Stand® is made in 3 different designs called Model A, Model X, and Model U. Model A and Model X are for use on a desktop surface, under any laptop computer, but each one is designed to better accommodate slightly different configurations of laptop computers. Model U is for using a laptop computer while sitting or lying down when the user wishes to use it directly on their lap.

The biomass log fuel has not been commercialized due to difficulties in mass-producing the logs at low cost. The current invention solves this problem by introducing a three-step compaction process: pre-compaction, final compaction, and ejection. While a rotary feeder / compressor is used to perform pre-compaction, a ram driven by a toggle mechanism performs final compaction rapidly and efficiently. A press implementing the three-step compaction is designed and described. This invention should improve the cost-effectiveness of biomass solid fuel or feedstock.Biomass materials such as yard waste, corn stover and switchgrass are compacted at high pressure to form dense “biomass logs” without binder or heat. Biomass logs serve as a solid fuel for heating buildings, and as feedstock for bio-reactors for liquefaction or gasification. Densifying the uncompacted fluffy biomass reduces space needed for storage, decreases the number of vehicles needed to transport biomass, and increases the energy density of fuel.

The invention discloses extra-huge-volume concrete once continuous pouring multi-cycle real-time temperature control construction technology. Flow and flow rate of circulating water is automatically regulated by a concrete internal and external temperature real-time monitoring system. Hydration heat inside concrete is gradually reduced to balance the inside and outside temperature difference of the concrete, effectively prevent temperature difference stress inside and outside the concrete from generating a crack, and ensure that construction quality of "extra-huge-volume concrete" meets design and specification requirements. The extra-huge-volume concrete one-time continuous pouring multi-cycle real-time temperature control construction technology has the advantages of saving a lot of water resources, achieving green construction, and conforming to national energy saving and environmental protection policy orientation due to the fact that three communicated circulating water systems including water in a circulating pipe network, water in an entire storage thermal insulation maintenance pool of a base plate and recharge water come from a foundation pit rainfall and site rainwater collection system.

A non-invasive blood glucose monitoring system wherein sensors in contact with separate locations on the ear and calibrated to be accurate to at least ±0.035 degrees Centigrade take the ear temperatures at these locations up to four times per minute continuously to calculate the temperature differential, and using this temperature differential in conjunction with a value determined by taking the square root of the product of the fasting blood glucose and HbA1c that becomes the base line glucose reference level, it can be determined that if the temperature differential decreases, then the blood glucose has increased 1 mg / dl per approximately 0.024 C, while if the temperature differential increases, the blood glucose has decreased 1 mg / dl per approximately 0.024 C.

The invention discloses a protective sealing door for an underground refuge chamber. The protective sealing door comprises a door frame and a door plate, wherein the door plate is arranged on the door frame through a rotation shaft; a locking mechanism for locking the door plate on the door frame is arranged on the door plate, a plurality of first reinforcing ribs for reinforcing the strength of the door plate are arranged in the door plate; heat-insulating materials, namely aerogel heat-insulating felts are filled among the reinforcing ribs; at least two annular sealing rings, namely flame-resisting sealing rings are arranged at the joint of the door plate and the door frame; and the periphery of the door plate is locked by the locking mechanism. According to the protective sealing door, the aerogel heat-insulating felts which can bear the temperature of 1,400 DEG C to the maximum are filled in the door plate, so that the door plate can resist high temperature generated during explosion, and the high temperature is insulated out of the refuge chamber; at least two sealing rings which are made of flame-resisting, anti-static, high temperature-resisting and oil-resisting materials are arranged on the contact surface of the door plate and the door frame, so that the protective sealing door has a good sealing effect.

The invention discloses a construction process of four-fold tube stratum decompression type double liquid jet grouting in the construction project technology field, which comprises the following steps that firstly forming a drilling lance boom with four-fold coaxial steel tubes, arranging passages in the inner portion of a multifunctional injector, which is relative to the four-fold tube of the drilling lance boom, installing two nozzles on the upper portion and the lower portion of the lateral side of the injector, secondly positioning, thirdly drilling holes, fourthly conducting jet grouting and injecting plaster, coaxially spraying compressed air and high-pressure cement plaster by the nozzles on the upper portion of the injector, and coaxially spraying high-pressure cement plaster and low-pressure accelerator serum by nozzles on the lower portion of the injector, wherein the low-pressure serum is externally coated on the high-pressure cement plaster, which are mixed with earth at the moment of being sprayed out in order to fast solidify soft ground, and fifthly conducting jet grouting to the design height, closing the valve for transporting fluid, and shifting a driller. The construction process solves the problems that the jet grouting solidification is hard to be conducted under the station of underground water flowing and jet grouting pile with large diameter and horizontal jet grouting solidification are hard to form. The invention reduces pressure for stratum through absorbing out waster mud water in the drilling and jet grouting process, and reduces the affect to the periphery.

The invention discloses a drilling machine for machining hardware fittings. The drilling machine comprises damping seats, wherein the damping seats comprise shells; sliding grooves are formed in the left sides and the right sides of the interiors of the shells; springs are arranged at the bottom ends of the interiors of the shells; supporting columns are arranged at the upper ends of the springs;and first sliding blocks are arranged at the left sides of the bottoms of the supporting columns and the right sides of the bottoms of the supporting columns. According to the drilling machine, the structure is simple, and the operation is easy; a movable clamping plate is moved by shaking a handle so as to clamp a machined workpiece, so that the operation is more convenient and labor-saving, andthe widths of the clamping plates can be conveniently adjusted for machining machined workpieces with different sizes; meanwhile, anti-slip mats are arranged on one sides of the outer walls of the clamping plates respectively, so that the surface friction force between the contact surfaces of the clamping plates and the machined workpiece is increased; after a fan works, the influence of debris particles on normal operation is avoided, the working efficiency is improved, and potential safety hazards caused by the debris particles to physical health of workers are eliminated; and the damping seats are arranged at the bottom of the drilling machine, so that the effects of damping and noise reduction are achieved when the drilling machine works.

The invention relates to a method for separating emulsions of oil and water, the method comprising incorporating a demulsifying-effective amount of a polyorganosiloxane demulsifier into an emulsion comprising an oil phase and an aqueous phase. The invention also relates to compositions containing polyorganosiloxane demulsifier and the water and oil phases of an emulsion.

The image data of a camera system is corrected. The camera system includes a color camera which supplies three output signals to three separate color channels, in the form of output signal vectors. The output signal vectors, the coefficients of which represent the output signals supplied by the color camera to the three color channels in a specific position lying in the range of observation, are multiplied by a correction matrix, particularly a square one. The corrected output signal vectors are then processed further in the camera system.