67results about How to "Maintain nature" patented technology

An osteotomy guide having a frame and a pair of guide pins, for creating a desired cut in a bone. The frame has an outer frame, and an inner frame which is telescopically mounted within the outer frame. Both the inner frame and outer frame having open ends and a guide pin sleeve. The inner frame and outer frame together define a main slot which is adjustable in length by moving the inner frame with respect to the outer frame. The frame is mounted to the bone by creating anchoring holes in the bone and extending the guide pins through the guide pin sleeves and into the anchoring holes, such that the guide pins are parallel in all planes. A controlled cut is created by using the guide pins as a visual guide or inserting a saw blade through the main slot.

An auto-configuration arrangement enables a general-purpose mobile terminal or user equipment (UE) and an access network having specific native or standardized codecs and media formats to conform to one another and to thus optimize resource utilization in the access network. When the UE is attached to the access network, UE and user identifier information is signaled by the UE to a configuration node implemented in the access network. The configuration node acquires information details regarding the UE, and also relevant user subscription information, by retrieval from one or more access network registers. The configuration node then uses the detailed information together with access network specific information to decide what QoS definition and type of codec to select for use, and assembles the selected definitions and codecs, such as by retrieval from a repository. The configuration node sends the selected QoS definitions and codecs to the UE, and the UE configures itself in accordance therewith by means of a configuration layer residing in the UE.

A bioreactor (1) having a container (2), a shaft housing (3) for guiding a shaft (5) through a wall (7), a stirrer (6) connected to the shaft (5) in the interior (9) of the container (2), and a drive (4) arranged outside the container (2) and connectable to the shaft (5). The shaft (5) is mounted in the shaft housing (3) via at least one ball bearing (23) and is sealed in relation to the shaft housing (3) by at least one seal (11, 20). The seal (11, 20) is configured as a radial shaft seal (28) having two sealing lips (30, 31) that are arranged one behind the other in the longitudinal direction of the shaft (5) and are able to run on the shaft (5) without lubricant.

Precision dispense pumps comprise a housing that has an internal chamber disposed therein. A pressurizing assembly disposed within the chamber and includes a cylindrical pressurizing member having a head, a thin-walled skirt extending axially away from the head, and a flange is positioned circumferentially around the skirt. The pressurizing assembly includes a support coupled to backside of the pressurizing member. The support has a cylindrical outside surface sized support the skirt when it is translated from a chamber surface during pressurizing assembly axial movement. A shaft projects through an opening in the support and into a partial opening in the pressurizing member. A fluid transport body is attached to the housing and includes a fluid chamber having a fluid inlet port and a fluid outlet port. An actuator is disposed within an actuator housing attached to the housing and is coupled to the shaft to cause axial movement of the pressurizing assembly within the housing chamber. The pump can includes a vacuum assist element connected to the housing to provide a desired pressure differential within the pump to bias the skirt against supportive chamber or support surfaces during pressurizing assembly movement. Check valves are in fluid flow communication with the fluid inlet and fluid outlet ports to ensuring checked one-way passage of fluid into and out of the fluid chamber during respective intake and output strokes of the pressurizing assembly.

The invention relates to a method preparing a fullerene nano micron material loaded with transition metal and a product of the fullerene nano micron material. The fullerene nano micron material refers to fullerene nano micron fiber (a fullerene nano micron crystal whisker and a fullerene nano micron tube) and a fullerene nano micron wafer. The method comprises a direct liquid-liquid interface loading method and a capillary adsorption method. The direct liquid-liquid interface loading method comprises steps of grinding a fullerene matter till the fullerene matter has metal luster, dissolving the fullerene matter in a good organic solvent so that the solution is a saturated solution, irradiating the saturated solution to a colloidal solution by using natural daylight or visible light in a container, mixing the colloidal solution and a certain amount of poor solvent containing a transition metal compound of certain concentration evenly, placing the mixture to a constant temperature incubator, standing, crystallizing and separating out the fullerene nano micron material loaded with the transition metal. The capillary adsorption method comprises that the transition metal compound is absorbed to the fullerene nano micron tube through a capillary principle. The method is simple, easy to implement, good in repetitiveness and applied to environmental protection fields such as fuel cell electrodes, catalysts, catalyst carriers, low dimensional semiconductors, functional polymer composite materials and valuable metal recycling in waste solvents.

The invention belongs to the technical field of material preparation, and relates to a preparation method of a hybrid material compounded from a fullerene micro-nano material and a conjugated polymer. The preparation method comprises the following steps: placing a fullerene substance into a agate mortar for grinding; dissolving the fullerene substance by adopting a good solvent, and then removing into a transparent glass bottle; carrying out ultrasonic dispersion by using ultrasonic waves in an ice-water bath, then filtering at room temperature to obtain a fullerene saturated solution, and then culturing by adding isopropanol to obtain suspending liquid which contains the fullerene micro-nano material; dissolving the conjugated polymer into the good solvent, and filtering to obtain a conjugated polymer solution; adding the conjugated polymer solution to the suspending liquid which has the volume ratio of 1-10 times and contains the fullerene micro-nano material; and carrying out oscillating mixing processing by using the ultrasonic waves, and culturing to obtain the hybrid material compounded from the fullerene micro-nano material and the conjugated polymer. The preparation method disclosed by the invention has the advantages of simple integral process, reliability in principle and short production period; the prepared material has the advantages of good property, wide application range, high reliability and environment friendliness.

A process of controlled radical polymerization, and products made therefrom is disclosed. The process includes performing controlled radical polymerization on a composition comprising a polymerizable compound, an initiator, a ligand, and a catalyst; permitting the controlled radical polymerization reaction to proceed until a desired level of conversion is attained, but prior to complete conversion to obtain an intermediate polymerization product; and further reacting the intermediate polymerization product with a reactant having a cluster of multiple reactive sites to provide a polymer reaction product having a cluster of pendent multiple reactive sites adjacent to said terminal ends of said polymer reaction product.

A lighting assembly includes a light source having a first generally planar, light source including a perimeter edge. A backsheet is disposed in substantially parallel relation with the light source, and includes at least one electrical feedthrough region extending through the backsheet and substantially covered by a contact patch disposed in substantially planar relation between the backsheet and the light source. A generally planar, connector cable extends over the backsheet and has connector pad(s) positioned thereon to associate with each feedthrough and to the light source through the contact patch. A low temperature solder material is disposed between each connector pad and contact patch for establishing electrical connection with the light source, wherein one or more of the light source, connector cable, backsheet, or any portion thereof is constructed of one or more plastics.

The invention discloses softened veneer and a manufacturing process thereof, belonging to the technical field of timber processing. The softened veneer comprises a soft wood piece layer I and a soft wood piece layer II, a solid glue layer is fixed between the soft wood piece layer I and the soft wood piece layer II, and the soft wood piece layer I and the soft wood piece layer II are connected by the solid glue layer into the whole softened veneer. The softened veneer can be bent freely without breakage and is soft and durable. The appearance and properties of timber are adopted by the two wood surface layers, and the softened veneer is a novel material with strong practicality.

The invention belongs to a mechanical processing method, that is, a process method of carbon nanotube jet grinding nickel base alloy. Carbon nanotube nanoparticles and grinding media are mixed to form nanofluid, and the nanofluid is sprayed into the grinding area in the form of a jet. The cooling performance of the cutting medium makes up for the lack of cooling capacity of the minimum quantity lubrication; at the same time, because the carbon nanotubes also have extremely high toughness, the tube wall has a hexagonal structure of graphite layer, so it has excellent lubrication performance and maintains the minimum quantity lubrication. properties and advantages, and increase the lubrication area of ​​the grinding fluid, effectively reducing the friction between the grinding wheel and the workpiece, between the grinding wheel and chips, prolonging the life of the grinding wheel, and obtaining positive effects of high processing quality, low cost, and no pollution. It has high application value and market prospect.

The invention discloses a method for restoring cyanide contaminated soil by using a low-temperature heat treatment technology. According to the method, the cyanide contaminated soil is used as a research object, common cyanides in the field soil are used as target contaminated substances, and thermal decomposition is carried out on the cyanides by using the low-temperature heat treatment technology, so that the uttermost removal of the cyanides in the soil is efficiently and safely achieved, and the treated soil meets the national "exhibition land soil environment quality evaluation standard HJ350-2007" grade-B standard; the cyanide contaminated land soil is restored by adopting the low-temperature heat treatment technology, so that the removal rate of the cyanides can reach 99% or above,and the degradation rate can reach 97% or above; the method aims at the medium-and-high-concentration cyanogen-containing soil, and the advantages that the efficiency is high, the time is short, and no secondary pollution occurs are achieved; the damage to the physical and chemical properties and the natural fertility of the treated soil is small, so that the situations that the soil can be backfilled after being treated and the agricultural production is restored become possible; and powerful technical support is provided for comprehensive treatment and safety reutilization of a cyanide contaminated site.

A telescopic differential screw mechanism based 3-DOF Parallel Manipulator system to enable differential length and omnidirectional bending is provided. The telescopic differential screw mechanism based 3-DOF Parallel Manipulator system includes a first circular rotating plate 102, a second circular rotating plate 104, three or more telescopic screw assemblies 106A-C and three or more actuators 108A-C. Each telescopic screw assembly 106 includes a pair of master screws 110, a pair of successive screws 112 and a universal joint 116. The three or more telescopic screw assemblies 106A-C are actuated differentially using the three or more actuators 108A-C to achieve omnidirectional bending with high angular rotations in a range of 0 to 75 degree.

A combustion chamber for a turbine engine, including an annular end wall provided with injection systems each centred on a respective axis and each having an upstream end forming a bushing for receiving a head of a fuel injector, and an annular shroud covering the end wall and including injector ports respectively arranged facing the injection systems, wherein the annular shroud includes air intake ports separate from the injector ports, and the bushing of each injection system crosses the corresponding injector port and includes at its upstream end a collar having a free end remote from the axis of the injection system by a first distance greater than a second distance separating a rim of the injector port from the axis.

The present invention relates to a method for biomolecule immobilization, comprising: providing a substrate; forming a surface modification layer of carboxy groups on one surface of the substrate, wherein the process for forming the surface modification layer comprises plasma surface modification; and providing pluralities of biomolecules and bonding the biomolecules with the surface modification layer. Accordingly, the method for biomolecule immobilization of the present invention can reduce manufacturing time and enhance the stability of manufacture. In addition, the method can be employed in a biosensor to efficiently enhance sensitivity of the biosensor.

The invention relates to a method of utilizing a thermogravimetric analyzer to evaluate coal and biomass coke reactivity. The method mainly solves the problems that comprehensiveness and accuracy of existing coke combustion/gasification reactivity evaluation indexes are insufficient and can better achieve reasonable representation of coal and biomass coke combustion/gasification reaction activity.The method comprises the steps: firstly, obtaining a specific reaction rate curve capable of effectively reflecting sample activity; then choosing a plurality of feature points on the curve; finally,constructing reaction comprehensive indexes capable of comprehensively and accurately representing sample reaction activity through organic combination of corresponding parameters of the feature points. The reaction comprehensive indexes are combined with a plurality of parameters capable of reflecting all aspects of sample combustion/gasification behaviors, difficulty and an intensity degree ofsample intrinsic combustion/gasification reaction occurrence can be comprehensively represented, and the reaction comprehensive indexes are more ideal indexes for comprehensively evaluating coal and biomass coke intrinsic reaction activity.

The invention relates to a method for modifying a molecular sieve, which comprises the steps of: firstly, extracting an organic template agent in molecular sieve raw powder containing the organic template agent on an extraction device by using an organic agent; and then carrying out ion exchange on the extraction device by using an acid solution, and translating into a hydrogen type molecular sieve, wherein no roasting step exists in the method of modifying the molecular sieve. The method provided by the invention has the advantages of high degree of crystallization, high modifying efficiency, no pollution and the like.