748results about How to "Low modification cost" patented technology

An illumination device using an innovative design to provide a uniform, highly concentrated and substantially longitudinal illumination. The device includes, at least one light source unit, a compound light guide with a built-in light-extracting feature and a reflective envelope. The compound light guide comprises two optically coupled sub-guides. A first sub-guide has a constant cross-section area with a profile optimized for an integral light-concentrating optics, and a second sub-guide has a varying cross-section area for controlling local light flux density inside the light guide and providing assembly means. Said light extracting feature having variable light extraction efficiency improves illumination uniformity at an area close to a light input end of the light guide without displacing a light source from the central normal line of a light-extracting feature. The extracted light from the light-extracting feature forms an effective light-emitting object with a constant width for the integral light-concentrating optics and therefore, the width of the light-extracting feature can be modulated to improve illumination uniformity without affecting the width of illumination. The reflective envelope recycles all light leaked out of the light guide and protects the light guide from environmental contamination and provides mechanical interface between the device and the application assembly.

For the production of a sheet product including at least two layers (V1, V2) it is suggested, among other things, an embossing device including a first pressure roller (5; 105) interacting with a first and a second embossing cylinder (1, 3; 101, 103) provided with respective points (1P, 3P, 101P, 103P) on their cylindrical surface.

A car driver driving skill practice guiding an examination scoring device comprises a core plate and an interface baseplate connected with the core plate, wherein the core plate comprises a DSP digital processing unit, an embedded MCU micro-controller, a program storage, a data storage and interface connector plugins; the DSP digital processing unit and the embedded MCU micro-controller are taken as the center namely a hardware platform of the device; the DSP digital processing unit is responsible for processing digital audios and digital video so as to obtain state data required by movement locus of an examination vehicle and other information; the embedded MCU micro-controller provides an operation platform for an operating system; and in addition to the interface connector plugins, interfaces containing corresponding interface circuit devices are also arranged on the interface baseplate. A realization method for car driver driving skill practice guiding an examination scoring, by means of the device, can improve the reliability of measurement data of the actual position of the examination car. Therefore, the integration level of functions of the vehicle-mounted equipment is improved, and the purchase and the maintenance cost for the customer are lowered.

The invention discloses a method for preparing a bio-carrier by porous foam polymer modification. The method is used for coating bonding modification of porous foam polymers. The method comprises the following steps of adding one or more cationized porous high-adsorptivity functional materials and one or more cationized polyhydric hydrophilic functional materials into coating modification slurry, mixing the coating modification slurry and a cationic acrylic acid emulsion, carrying out coating bonding of the mixture on one or more porous foam polymers, and carrying out cross-linking curing to obtain the modified bio-carrier having strong adsorbability, hydrophily, surface active functional group diversity, positive surface charges and strong biocompatibility. The method provided by the invention is not limited by structures, shapes, aperture sizes and physical properties of foam polymers and can be widely used for external coating modification of multiple carrier materials. The method provided by the invention has the advantages of convenient and simple operation, low investment and making cost, excellent carrier performances and long service life. The bio-carrier obtained by the method can be widely used in fields of fixed attachment of various microorganisms, and enhanced biological treatment.

A plug-in hybrid vehicle drive system, including an internal combustion engine for driving one or more wheels of a vehicle, at least one on-wheel electrically powered motor, the motor coupled to a speed reduction mechanism, the speed reduction mechanism coupled to a vehicle wheel for driving at least one wheel of the vehicle, a battery located in the vehicle and connected to the at least one on-wheel motor for supplying power to the on-wheel motor, a battery charger including an AC/DC power converter, and an AC outlet connector in communication with the battery charger for receiving power from an external source.

The invention discloses a TCAS (traffic collision avoidance system)-based collision detection method for an airplane formation and application of the method. Based on the original airborne anti-collision, the flight path estimation error during a flight is considered, the collision detection method for the airplane formation is introduced aiming at the formation forming process, various random interference factors on performance are considered, an alarm threshold value and a filtering duration probe time are adjustable, better safety is realized compared with the traditional geological probe, and the virtual alarm probability in the formation forming process is effectively reduced, in addition, once an airplane in the formation is deviated from the designated track range, a system provides alarm information and the management and maintenance for the formation are convenient.

The invention discloses a fluid level gage applied to high pressure boiler. The fluid level gage includes a connector connected to the measured container, the connector has a magnetic float elevating with the fluid level, the external side of the connector has a vernier coupled with the magnetic float, several photoelectric switches are arranged on the measured container with the fluid height, the vernier corresponds to different photoelectric switch when it is in different height, thus it is shaded and reflected; each photoelectric switch is connected to the control unit, it outputs voltage different to other photoelectric switch according to the voltage of the photoelectric switch, acquires the fluid height of the measured container. The device in the invention can provide fluid level electric signal output.

A method and apparatus for determining a fluid flow rate blood access having an upstream position and a downstream position using a dialysis system. The dialysis system includes a dialyzer having a semi permeable membrane delimiting a first chamber through which blood removed from said blood access passes, and a second chamber through which dialysis liquid passes. In addition, an arterial line and a venous line are connected to an inlet and an outlet of the first chamber, respectively.

The invention relates to a method for enhancing hydrophilic stability of a macromolecular film by using metal ions to complex with polyphenol. The method comprises the following steps of firstly, soaking the macromolecular film or an organic surface into an alcohol solvent or water, or cleaning; fetching out, and soaking by a mixed solution containing a crosslinking agent and hydrophilic moleculesfor the second time; fetching out, soaking into a mixed solution containing a polyphenol compound and a mixed solution containing metal ions, and modifying the surface for the third time and the fourth time; finally, fetching out, cleaning and drying. The method has the advantages that the conditions are mild, the operation is simple and convenient, the cost is lower, and the like; the hydrophilic property, anti-oil dirt property and hydrophilic stability of the obtained modified macromolecular film or the inorganic surface are obviously enhanced, the application range of the raw materials isgreatly broadened, and the popularization and application prospect is better.

The invention relates to a hydrophilization modification method of a polyolefin hollow fiber ultrafiltration membrane, especially relates to a method using dopamine or dopamine derivatives for forming a hydrophilic modification layer on the polyolefin hollow fiber ultrafiltration membrane surface and in membrane holes. The method avoids the influence of polyolefin material structure, can effectively maintain the structural and mechanical properties of the polyolefin membrane, and overcomes the shortcomings that modification in the membrane holes cannot be achieved by irradiation grafting and plasma surface grafting technology. According to the method, an ultrathin poly dopamine or dopamine derivative hydrophilic modification layer prepared by the method can be combined firmly with a polyolefin hollow fiber ultrafiltration membrane material may not be lost in the use process, the modified membrane is stable and reliable in properties, and has good application prospects in water treatment, petrochemical, pharmaceutical, biological, energy and other areas.

The invention provides a method for preparing a paving asphalt concrete additive through direct liquefaction of residues with coal. The paving asphalt concrete additive is prepared through the following steps: adding an appropriate amount of plasticizing agent, coupling agent and rubber powder during direct liquefaction of the residues with the coal, high-temperature melting, mixing and the like. When being added, the additive can substitute 10-40 percent of total asphalt in the paving asphalt concrete without changing the proportion of the components of the paving asphalt concrete, and can not affect the use performance of the road adopting the paving asphalt concrete, but can improve part of the performances of the road. Moreover, the invention can reduce the cost of the paving asphalt concrete, and realize the purposes of transforming the residues into valuable resources, saving the energy and reducing the emission.

A transfer controller determines whether or not a communication message received by a receiver satisfies a predetermined condition, on the basis of data stored in a communication data storage. When the communication message received by the receiver satisfies the predetermined condition, the transfer controller stops and cancels the process for transferring the communication message performed by the relay. The transfer controller stores, in the communication data storage, data regarding the communication message relayed by the relay. When the transfer controller stops the transfer of the communication message, a proxy register generates proxy data on the basis of the data stored in the communication data storage and registers the proxy data in a proxy data storage. On the basis of the proxy data registered to the proxy data storage, a communication proxy generates a proxy transmission message and causes a transmitter to transmit the proxy transmission message.

Apparatus and method for modifying an object with electrons are provided, by which the object can be uniformly and efficiently modified with the electrons under a pressure substantially equal to atmospheric pressure even when having a relatively wide surface area to be treated. This method uses a cold-cathode electron emitter having the capability of emitting electrons from a planar electron emitting portion according to tunnel effect, and preferably comprising a pair of electrodes, and a strong field drift layer including nanocrystalline silicon disposed between the electrodes. The object is exposed to electrons emitted from the planar electron emitting portion by applying a voltage between the electrodes. It is preferred that an energy of the emitted electrons is selected from a range of 1 eV to 50 keV, and preferably 1 eV to 100 eV.

This invention relates to a method for preparing a fire retardant agent for natural brucite Mg(OH)2 cables including: selecting sheet-like natural brucite, 2, pre-processing the natural brucite, 3, getting superfine micro-particles of Mg(OH)2 after entering into the gas flow to be collided, crushed and magnetized, 4, putting the micro-particles into a modifying machine, then dropping or spraying the magnetized modifier into the modifying machine to get the fire retardant agent of Mg(OH)2 of natural brucite.

The invention provides rubber composition which is used for a tire tread and prepared from modified nano-silica filled butadiene styrene rubber. Nano-silica is modified with aliphatic diisocyanate, then water-soluble polymers are added for a grafting reaction, a barrier layer with a high dispersion structure is formed on surfaces of nano-silica particles for preparation of modified nano-silica, the modified nano-silica and butadiene styrene rubber are mixed and coagulated, and the high-performance rubber composition for tire tread rubber is prepared. The problem that nano-silica is prone to agglomeration is effectively solved, the problems that nano-silica has poor binding force with a rubber matrix and is non-uniform in dispersion are solved, and the composition has high wear resistance, low friction and wet-skid resistance. The invention further provides a preparation method of the composition.

The invention discloses an automatic program version issuing method and device. The method includes the steps that a functional module development task of a program is associated with a development computer, and associated information is stored in a server; the associated information is processed so that a warehouse address can be generated in the server; the development computer submits a source code developed by the development computer to a warehouse corresponding to the development computer; warehouse state change is monitored; when warehouse state change indicates that a new source code is submitted, signals are sent to a compilation unit, and the source code is sent to the compilation unit for compilation operation; when compilation is successful, version issuing of the program is triggered. By the application of the method and device, manual work participation can be reduced, cost is saved, automated version issuing of the program is achieved, and efficiency is improved.

The invention discloses a hydrophobic ultraviolet radiation aging-resistant wood-based composite material and a preparation method thereof. The surface layer of the composite material is of a titanium dioxide layer with a micro-nano secondary structure and the crystal structure of the composite material is of a rutile type. The preparation method comprises the processes of precursor solution preparation, multistage dipping and drying: firstly dispersing a water-soluble titanium source in a 5-7mol/L sodium chloride aqueous solution to obtain a solution a, wherein the concentration of the water-soluble titanium source is guaranteed to be 0.001-0.500 mol/L; uniformly adding an alkaline matter into the solution a to obtain a precursor solution, wherein the concentration of the alkaline matter is guaranteed to be 0.001-0.500 mol/L; dipping a wooden base material into the precursor solution, reacting at a room temperature for 1-10 days, cleaning and drying for 1-2 days to obtain a wood-based composite material; dipping the wood-based composite material in 0.8-1.2% of a low-surface energy matter solution, reacting at a room temperature for 0.2-1 day and drying for 1-2 days to obtain the hydrophobic ultraviolet radiation aging-resistant wood-based composite material. According to the preparation method, a titanium dioxide surface layer with a rutile type micro-nano secondary structure can be constructed on the surface of the wooden base material so that the wood-based composite material is excellent in hydrophobicity and ultraviolet radiation aging resistance.

The invention discloses a modified rice straw stalk and a preparation method and an application thereof. The modified rice straw stalk is obtained by the steps of carrying out solid-state fermentation of rice straw stalk, a white-rot fungus spore suspension and a trace element liquid, then mixing with oxalic acid, and carrying out ultrasonic treatment and heating reaction. The preparation method includes the steps of solid-state fermentation and chemical treatment. The modified rice straw has high specific surface area and specific pore area, contains more -COO<-> groups, and can be applied to treatment of wastewater containing cadmium; an application method includes the following steps of mixing the modified rice straw stalk with the wastewater containing cadmium, and carrying out oscillation adsorption, wherein the mass volume ratio of the modified rice straw stalk to the wastewater containing cadmium is (5 g-6 g) to (1 L). The modified rice straw stalk has the advantages of high treatment efficiency, good treatment effect, environmental protection and no secondary pollution.

The invention discloses a method for the quality improvement of biological oil through catalytic esterification-deoxidize reforming in a subcritical alcohol system. The method utilizes a double-effect supported catalyst with the functions of catalytic esterification and deoxidize reforming and adopts the one-step method to solve the problems of corrosivity and low heating value caused by the strong acidity and high oxygen content of the biological oil simultaneously, so that the pH value of oil products can rise to above 6.5 and the heat value can achieve above 35 MJ/kg; the method can effectively avoid the problem that the catalyst is coked and inactived by contacting heavy components of the biological oil in the traditional catalytic cracking and deoxidizing process. The method for the quality improvement and the modification of the biological oil has the advantages that the operation process is convenient, the quality improving yield of the biological oil is high and can reach above 84%, the modifying cost is lower, and the large-scale quality improvement of the biological oil can be easily achieved, so that the method of the quality improvement of the biological oil has potential for generalization.