101results about How to "Price advantage" patented technology

The invention provides a sound-producing device of a display screen and a smart terminal. The sound-producing device of the display screen comprises a shell, the display screen and an exciter, whereinthe display screen is formed on one surface of the shell, and the exciter is arranged in the shell and located below the display screen; the exciter drives the display screen to produce sounds through vibration in the perpendicular direction of the display screen. In the sound-producing device, the display screen is pushed to vibrate in the front-and-back direction through the exciter to push airto produce the sounds through vibration; the larger display screen can move by smaller distance to push more air to produce the sounds which are equal to these of a telephone receiver in volume; low-frequency response is basically identical to that of the traditional telephone receiver, and has no obvious distorted peaks, the volume is basically identical to that of the traditional telephone receiver, and the price is lower than that in a scheme of piezoelectric ceramics.

The invention relates to an automotive range extender based on a linear ISG(Integrated Starter and Generator) motor/engine. The range extender comprises cylinders, wherein two piston components are arranged and are respectively located in the two cylinders; the two piston components are connected with the two ends of a connecting rod component; a linear displacement sensor and a Hall sensor are arranged on the connecting rod component; a linear ISG motor rotor is arranged in the middle of the connecting rod component; a linear ISG motor stator is fixed between the two cylinders and outside the linear ISG motor rotor; a scavenging air receiver is arranged on the inner sides of the cylinders; a throttle body is connected with the scavenging air receiver; an oil sprayer, a throttle body position sensor and an air flow sensor are arranged on the throttle body in turn; cylinder covers are arranged on the outer sides of the cylinders; spark plugs are arranged on the cylinder covers; and an electric control unit is respectively in electric connection with the linear displacement sensor, the Hall sensor, the throttle body position sensor and the air flow sensor. Compared with the prior art, the automotive range extender based on the linear ISG motor/engine has the advantages at the aspects of energy use efficiency, cost, mechanical structure, use convenience, and the like.

The invention relates to an immunological adjuvant containing fucosan sulfate and application of the immunological adjuvant. The technical problems that at present, the kinds of immunological adjuvants are few, side effects cannot be avoided, and a great number of vaccines need to be provided when infectious diseases break out are solved. The immunological adjuvant consists of the following components in mass ratio: fucosan sulfate, ginsenoside and the rest of carriers, wherein the carriers consist of the following components in mass ratio: an emulsifying agent, an emulsifying auxiliary agent, oil phase and aqueous phase. The immunological adjuvant can be widely used in the preparation field of vaccines.

The invention provides a low-alloy seamless steel pipe for supporting a crane cantilever. The seamless steel pipe comprises the following components in percentage by weight: 0.10 to 0.20 percent of C, 0.2 to 0.8 percent of Si, 0.6 to 1.5 percent of Mn, 0.3 to 0.8 percent of Cr, 0.2 to 0.6 percent of Mo, 0.001 to 0.050 percent of Ti, 0.02 to 0.06 percent of Al, 0.2 to 0.8 percent of Ni, 0.01 to 0.10 percent of V, 0.01 to 0.08 percent of Nb and the balance of Fe. The low-alloy seamless steel pipe has the advantages of lower carbon equivalent and the mechanical properties of similar products; a heavy-duty machinery manufacturing enterprise more easily obtains high-quality welded joints on the premise of a welding process, and the production efficiency of on-site welding is improved; and the using amount of precious metal alloy elements such as W, Ni, Mo and the like is reduced, resources are saved, and the production cost of the seamless pipe is reduced.

The invention discloses a full-paper multilayer document shelf unit which comprises a full-paper tray (10) provided with two lateral plates (11) and a rear lateral plate (12). Two peripheral plates (20) which are fixed into a whole with the two lateral plates (11) of the tray (10) are arranged at the two sides of the tray (10). Convex insertion plates (21) and concave slots (22) are respectively arranged in the upper and lower directions of the two peripheral plates (20), and are corresponding to each other in positions and shapes. A method for splicing a multilayer document shelf is that the insertion plates and the slots corresponding to two adjacent layers of document shelf units are spliced together and the two adjacent layers of document shelf units are superimposed so as to form the multilayer document shelf. Being convenient for recycling, the invention not only can avoid impact to the environment, but also can save large quantities of resources. In the aspects of manufacturing and using, the invention is simple as well as convenient in forming and can bear heavy weight; moreover, the number of layers can be increased or reduced at will.

The present invention is one optimized method of raising the effect of PCR amplification with nanometer carbon powder, and belongs to the field of biological technology. The method is to add certain amount of nanometer carbon powder into the PCR amplification system on the basis of available PCR amplification method. The present invention has obvious optimizing effect, simple operation, and easy separation of the added matter from the system for convenient post application of the PCR resultant.

The invention provides a precision duplex planetary reducer. The main device structure comprises two sets of engaged gear pairs and a separate planet carrier combination. An oblique tooth drive wheel is integrally arranged at the rear end of the main device structure; the outer engaged gear pair as the first set is arranged outside a planet carrier and is formed by making multiple planet wheels engaged with sun wheel gear shafts; and the inner engaged gear pair as the second set is arranged in the planet carrier and is formed by making multiple planet wheel gear shafts engaged with fixed inner tooth rings. The separate planet carrier combination comprises a front-end planet carrier body and a rear-end planet carrier body. The planet wheels in the outer engaged gear pair and the planet wheel gear shafts in the inner engaged gear pair are locked through screws to form a duplex planetary structure. Rear-end drive wheels are integrally arranged on the sun wheel gear shafts, and the rear-end drive wheels are driven through motor gear shafts, so that the whole reducer is driven to rotate. The planetary reducer is simple in structure and has the beneficial effects of being high in precision, high in rigidity, low in noise and low in backlash.

The invention relates to a solid corrosion and scale inhibitor and a processing method thereof, and belongs to the technical field of oil-water well scale prevention. The solid corrosion and scale inhibitor comprises the following components in parts by weight: 30 to 35 parts of imidazoline quaternary ammonium salt, 8 to 10 parts of organic phosphoric acid, 1-3 parts of fungicide, 0.5-1 part of dispersant, and 20-30 parts of water. The processing method comprises the following step of evenly dispersing the imidazoline quaternary ammonium salt, the organic phosphoric acid and the fungicide in the dispersant of the network structure to form a solid block. A long-acting slow-release mechanism is that the dissolution rate of an oil-soluble slow-release regulator with a network structure achieves slow and stable release, so that the imidazoline quaternary ammonium salt and the organic phosphoric acid are uniformly dispersed in an oil-water mixture in a shaft to form the scale inhibitor withcomprehensive effects of slow release, scale inhibition and sterilization, and the user performance is high..

A forkman beam steel rolling technics method is provided, which processes as the following technics flow: firstly, bait 150mm2 square steel blank of a chemical composite according to the requirements of the user to form a fixed size according to the requirements of the technics; secondly, the blank after baiting enters into a heat furnace to increase to 1250 DEG C., in order to comply with the temperature range of material rolling for beginning rolling; thirdly, the blank after multiple gates of back and forth rolling, enters into a forming rolling gate to produce forkman beam steel shape; fourthly, the rolling piece with the forkman beam steel shape after the flatting of the last gate, makes the size of the forming steel interface and tolerance comply with the size requirements of producing forkman load beam, the final rolling temperature is 900 DEG C.; fifthly, after nature cooling, according to the supply requirements and the requirements of the drawings, remove the blue roll scale on the surface of the rolling piece, to proceed the last heat process or various straightening process.

The invention discloses an automatic blood plasma separation meter which is provided with a plasma separating clip for clamping a blood bag, a blood bag hose clip and a hose clip control device, wherein the plasma separating clip is controlled by an extruding motor; the extruding motor is connected with an extruding motor control module; the extruding motor control module is controlled by output data of a single chip microcomputer; the single chip microcomputer is connected with a display module; the output data of a blood flowing-out detection module is connected with the single chip microcomputer; a weight detecting module and an operation key module are connected with the single chip microcomputer; a position detecting module is connected with the single chip microcomputer; and a power supply module is used for supplying power to each module. Compared with the prior art, the automatic blood plasma separation meter has the advantages of simple structure, convenience for operation and low cost, and can be used for realizing automatic blood separation, reducing artificial errors and mistakes, saving manpower resource and reducing the labor intensity.

The invention discloses a combined mechanical ventilation fermenting and drying dual-purpose tank. The combined mechanical ventilation fermenting and drying dual-purpose tank comprises a bearing mechanical ventilation device, a temperature regulation automatic control device and an indoor-temperature heating device which are installed in a fermenting and drying chamber. The bearing mechanical ventilation device comprises a ventilation tank and an electric fan, the ventilation tank is formed by two long-side biconvex plates, two wide-side biconvex plates and the like in a combined and spliced mode and is supplied with air through the electric fan. An intelligent temperature regulation instrument in a distribution box of the temperature regulation automatic control device is connected with the electric fan and an electromagnetic steam regulation valve. The indoor-temperature heating device is composed of a central heating introduction air inlet pipe through the electromagnetic steam regulation valve, steam pipelines, steam stop valves, steam heat radiation fins and steam trap valves. The combined mechanical ventilation fermenting and drying dual-purpose tank is simple in structure, reasonable in design, capable of achieving two proposes and saving labor and time, convenient to operate, high in production efficiency, and capable of well achieving the purposes of fermenting and drying yeast materials and bringing great advantages to product transport and the price.

The invention discloses a halogen-free flame-retardant polypropylene material and a preparation method thereof. The halogen-free flame-retardant polypropylene material is prepared from, by weight, 69-87.5 parts of polypropylene, 10-20 parts of expanded flame retardant, 1-5 parts of zirconium phosphate, 1-3 parts of expanded graphite, 0.3-2 parts of thermostabilizer and 0.2-1 part of white oil. Byadding zirconium phosphate and expanded graphite, flame-retardant performance can be improved, so that adding amount of the flame retardant is reduced greatly, and control of cost and maintaining of product performance are facilitated. The halogen-free flame-retardant polypropylene material is rich in raw material source, needless of modification treatment, simple in production process and easy for large-scale production.

The invention discloses a device for realizing synchronous transport module level-1 (STM-1) multipath Ethernet over E1 conversion, which comprises an STM-1 optical module, wherein the STM-1 optical module is connected with a clock and data recovery (CDR) module through a 155M differential signal; the CDR module is connected with an field programmable gat a array (FPGA) circuit through a 155M differential signal; the FPGA circuit is connected with a double data rate 2 synchronous dynamic random access memory (DDR2SDRAM) module and a CPU module; the FPGA circuit is connected with a gigabit Ethernet physical layer (GE PHY) chip module through a gigabit media independent interface (GMII), and the GE PHY chip module is connected with a gigabit Ethernet x 2 (GE x 2) interface. In the invention, a scheme of field programmable chip independent development instead of a chipset scheme is adopted, so the device has an obvious price advantage, gets rid of dependency on imported chips and has an obvious characteristic of independent innovation. The device of the invention can be widely used in the field of communication.

The invention discloses a measuring instrument and a measuring method for the water content based on a dielectric method to measure the water content of the flour or the similar substance. The measuring instrument for water content comprises a test circuit and a display circuit. The test circuit mainly comprises a signal source circuit, a parallel double rod probe, and a phase difference detectioncircuit using an AD8302. The display circuit comprises an ARM processor circuit and an LCD display screen. The measuring method comprises the steps: that parallel double rod probe is placed in the flour or the similar substance; a signal is generated by an oscillator employed by the signal source circuit; the signal is transmitted in a sample of the flour or the similar substance through the parallel double rod probe; the signal generated by the signal source and the signal transmitted by the probe are respectively detected by the phase difference detecting circuit; the phase difference is obtained; a calibration curve is drawn; and the water content value corresponding to the VPHS value on the calibration curve is calculated. According to the measuring instrument and the measuring methodbased on dielectric method for the water content of the flour or the similar substance, the rapid non-destructive detection of water content can be realized, the measuring instrument and the measuring method are not only economical and efficient, have high application value, and are worthy of popularization and application.

The invention discloses an internal combustion engine intercooler circulating water waste heat recovering device and method and relates to the field of internal combustion engine waste heat recovering. The internal combustion engine intercooler circulating water waste heat recovering device comprises a cooling tower system and a high-temperature water source heat pump system which are connected with an internal combustion engine intercooler. The cooling tower system and the high-temperature water source heat pump system run in parallel and are mutual standbys. The device is used for cooling internal combustion engine intercooler circulating water. At the normal situation, a high-temperature water source heat pump unit extracts heat energy from the internal combustion engine intercooler circulating water, and after internal circulation of the heat pump unit, hot water with the relatively high temperature is prepared and supplies heat to a user. When the heat pump unit breaks down or theuser does not have a demand for more heat, the heat pump unit stops running, at this time, the cooling tower system works and carries out cooling and heat dissipating on the circulating water in theinternal combustion engine intercooler. According to the internal combustion engine intercooler circulating water waste heat recovering device and method, the high-temperature water source heat pump and the distributed energy resource of the internal combustion engine as a prime motor are integrated, the utilization efficiency of the distributed energy resource can be remarkably improved, the energy resource is saved, the project cost is saved, and the safe reliability of system heat dissipation is improved.

The invention relates to a method for preparing carbon quantum dots. The method comprises pretreatment of a raw material and preparation of the carbon quantum dots, and concretely comprises the following steps: (1) disintegration of a paper pulp fiber raw material; (2) high-temperature hydrothermal treatment; (3) grading dialysis; (4) freeze drying treatment: freeze-drying treatment of a collectedfiltrate, collection, and preservation for obtaining carbon quantum dot solids having different molecular weight cut-offs. The method for preparing the carbon quantum dots with different functions and different molecular weights from the paper pulp fiber raw material broadens the raw material sources of the carbon quantum dots to a certain extent, explores the characteristics and functions of thecarbon quantum dots having different molecular weights, and is in favor of accelerating the research and development of the carbon quantum dots..

The invention provides a shutter curtain wall with oversized dimension, which comprises vertical keels, horizontal keels, a shutter, connecting angle aluminum, a connecting piece, a bolt and a self threading pin, wherein a horizontal keel 1 and a horizontal keel 2 are fixed on a vertical keel 1 and a vertical keel 2 respectively through the connecting angle aluminum; the shutter is fixed on the vertical keel 2 through the connecting piece; and the horizontal keel 1, the horizontal keel 2 and the shutter form the shutter of the shutter curtain wall with oversized dimension side by side. The shutter curtain wall with oversized dimension provided by the invention has the beneficial effects of good structure intensity, short processing period, convenience in transportation, beautiful appearance, and strong practicability, and the design requirement is met, and the shutter curtain wall with oversized dimension is more advantages in construction period and price.

The invention discloses an alpha-ketoglutarate content determination reagent kit and a method based on HPLC (high performance liquid chromatography). The reagent kit comprises a reagent I, a reagent II, a reagent III, a reagent IV and an alpha-ketoglutarate standard, wherein the reagent I comprises hydrochloric acid, EDTA (ethylene diamine tetraacetic acid) and water; the reagent II comprises NaOHand water; the reagent III comprises phenylhydrazine hydrochloride and water; the reagent IV comprises dipotassium phosphate, monopotassium phosphate and water. The method comprises the steps of generating an absorption substance under ultraviolet by a reaction of alpha-ketoglutarate and a derivation agent, and after performing separation by the high performance liquid chromatography, determiningan alpha-ketoglutarate content through an ultraviolet detector. The kit and the method can detect a microgram level content and are high in sensitivity; a sample pretreatment process is simple and easy to operate; the manpower is saved; an extracting solution comprises simple ingredients; only aqueous solution extraction is required; the cost is low; and compared with a biological immunodetectionmethod, the required reagents have obvious price advantages, and are nontoxic basically, safe and environmentally friendly.