85 results about "Size selective" patented technology

Dendritic polymers with enhanced amplification and interior functionality are disclosed. These dendritic polymers are made by use of fast, reactive ring-opening chemistry (or other fast reactions) combined with the use of branch cell reagents in a controlled way to rapidly and precisely build dendritic structures, generation by generation, with cleaner chemistry, often single products, lower excesses of reagents, lower levels of dilution, higher capacity method, more easily scaled to commercial dimensions, new ranges of materials, and lower cost. The dendritic compositions prepared have novel internal functionality, greater stability (e.g., thermal stability and less or no reverse Michael's reaction), and reach encapsulation surface densities at lower generations. Unexpectedly, these reactions of polyfunctional branch cell reagents with polyfunctional cores do not create cross-linked materials. Such dendritic polymers are useful as demulsifiers for oil/water emulsions, wet strength agents in the manufacture of paper, proton scavengers, polymers, nanoscale monomers, calibration standards for electron microscopy, making size selective membranes, and agents for modifying viscosity in aqueous formulations such as paint. When these dendritic polymers have a carried material associated with their surface and/or interior, then these dendritic polymers have additional properties for carrying materials due to the unique characteristics of the dendritic polymer, such as for drug delivery, transfection, and diagnostics.

The present invention relates to methods for the preparation of inorganic nanoparticles capable of fluorescence, wherein the nanoparticles consist of a host material that comprises at least one dopant. The synthesis of the invention in organic solvents allows to gain a considerably higher yield compared to the prior art synthesis in water. All kinds of objects can advantageously be marked and reliably authenticated by using an automated method on the basis of a characteristic emission. Further, the size distribution of the prepared nanoparticles is narrower which renders a subsequent size-selected separation process superfluous.

A method and system are provided for displaying icons in accordance with user preferences. The method includes providing a user with a size selection mechanism for selecting an icon size from a range of sizes. The method additionally includes searching a set of stored resources related to the underlying file and generating the icon in the selected size based upon the stored resources. The method may additionally include selecting an icon type including one of an image icon, a detail icon and a generic icon based on at least one of the user's size selection and the represented file. Furthermore, the icon display system of the invention positions labels and overlays in the vicinity of the icon based upon the selected size of the icon.

Size-selective hemocompatible porous polymeric adsorbents are provided with a pore structure capable of excluding molecules larger than 50,000 Daltons, but with a pore system that allows good ingress and egress of molecules smaller than 35,000 Daltons. The pore system in these porous polymeric adsorbents is controlled by the method of synthesis so that 98% of the total pore volume is located in pores smaller than 300 Angstroms (Å) in diameter with a working pore size range within 100 to 300 Å in diameter. The porous polymeric adsorbents of this invention are very selective for extracting midsize proteins, such as cytokines and β₂-microglobulin, from blood and other physiologic fluids while keeping the components required for good health such as cells, platelets, albumin, hemoglobin, fibrinogen, and other serum proteins intact.

Conventionally, text boxes are used to inform an image capture device of the size of an area to which a captured image will need to be scaled, when fitting the captured image into that area of the composite document. In contrast, size selection systems, methods and graphical user interfaces allow the user to select one of a number of predetermined sets of scale dimensions that the captured image is to be scaled to. The size selection systems, methods and graphical user interfaces provide an alternative method for specifying the dimensions that a captured image is to be scaled to. In various exemplary embodiments of the size selection systems, methods and graphical user interfaces, an image size tab of a graphical user interface for an image capture driver includes a scale portion. The scale portion, in addition to having a number of dimension boxes that allow the user to directly input the desired dimensions to which the captured image is to be scaled, also includes a dimension list box. The dimension list box includes predetermined sets of dimensions to which the captured image can be scaled. In various exemplary embodiments, the dimensions list box includes, as the predetermined sets, sets of dimensions for common paper sizes and sets of dimensions for different paper orientations. The predetermined sets of dimensions can also include sets of user-defined dimensions. These user-defined dimensions allow the user to specify the dimensions of an image area of a document that is often used.

A method for automatically magnifying a copy job to result in a copied text that is not smaller than a user specified minimum size. An original document is automatically scanned and an analysis performed to determine, the smallest text size within the original document. A magnification for rendering the document can then be set. Media size can then be selected appropriately, and an image magnification ratio and output document size selections optimized to create a text size in the resulting rendering document which are as close as possible to a user's minimum text size selection when the user selected minimum text size cannot be achieved.

The invention discloses a preparation method of a layered molybdenum sulfide nanosheet molecule separating membrane. According to the preparation method, n-butyllithium is taken as an intercalation modular and enters a molybdenum sulfide crystal lattice after long-time stirring; water is added for decomposing n-butyllithium, so that the interlayer distances of a molybdenum sulfide sheet are enlarged; molybdenum sulfide is dispersed into monoatomic layer materials through ultrasonic treatment; redundant impurities are removed through dialysis, and a purified and clean molybdenum sulfide water solution is obtained; the obtained molybdenum sulfide water solution is treated with a vacuum filtration method, and the layered molybdenum sulfide nanosheet molecule separating membrane is obtained; and the thickness of the membrane is adjusted by adjusting the volume of the used molybdenum sulfide water solution. A molecule-selective separation membrane is obtained with a method of stacking the monoatomic layer materials to form the membrane; and the material preparation method is simple, the cost is low, and the obtained membrane has size selective separation performance on different molecules.

A shielding method for achieving highly uniform temperatures in liquids during microwave heating by substantially enhancing vertical mixing currents in said liquids, making determinations of final temperature reached in said liquids either by touch or the use of a temperature indicator efficacious, comprising: a electrically conductive shield having very low impedance at microwave frequencies; having, a generally cylindrical shape, and dimensions chosen to accommodate a variety of microwaveable containers. said shield: to be concentric with a microwaveable container, containing a liquid to be heated by microwave radiation; and, to be located so as the top edge of said shield is at or above a vertical level corresponding to the level of the liquid in said container; and, to be of sufficient height as to cover at least 10% of the height of the liquid in said container. In a preferred embodiment, the shield has a height "h", covering between 10% and 90% of the of the liquid contained in the container to be heated; and, a circumference/length "L" covering at least 90% of the circumference of the container to be heated.

The invention discloses a prediction system and method based on insect body filtration and insect quantity and variety recognition, and belongs to the technical fields of agriculture and forestry plant protection and insect condition monitoring. Aiming at the problems of indefiniteness of target insect bodies to be trapped and killed, inaccurate recognition and quantity prediction caused by insect body stacking, inconvenient disassembly and assembly of equipment and complex maintenance in the prior art, the main purpose of the invention is to provide an insect condition prediction device and method. The insect condition prediction device is characterized in that an insect body filter screen cover is arranged at the outer side of an impact plate or is arranged below a trap lamp tube and above an insect receiving hopper; an insect receiving bag has a function of scattering, separating and dropping insects; the insect bodies are transported and photographed through timing control of the movement of a conveyer belt; and finally, all the insect bodies fall into an insect storage bin or even are directly discharged to the outside of the machine. According to the invention, the insect body selective trap and kill and big insect size selective filtration can be made possible; uploaded pictures can have the favorable effects of clear insect body characteristics and a very low overlapping ratio; and meanwhile, the cleanliness inside the device can be kept, thereby effectively reducing the output of extra manpower.

The invention provides a preparation method for a mesoporous compound film. The method comprises the following steps: triggering the alcoholysis reaction of a precursor compound and a structure-directing agent in ethyl alcohol, thereby obtaining a sol; performing surface treatment on a porous film and soaking in the sol; airing the soaked porous film under a room temperature condition and completing a sol-gelling process; cleaning and drying, thereby obtaining the mesoporous compound film. According to the invention, a polyethylene oxide-polypropylene oxide-polyethylene oxide triblock copolymer, cetyl trimethyl ammonium bromide or lauryl sodium sulfate is taken as the structure-directing agent, so that the mesoporous size of the prepared mesoporous compound film can be continuously adjusted. The mesoporous compound film prepared according to the invention has a unique mesoporous structure; due to the organic solvent resistance and special porous structure or the capability of further modifying the mesoporous of the compound film, the mesoporous compound film can be applied to the separating purification fields of selective molecule transferring in the solution, the size selective ion transferring and ultrafiltration on a separating and liquid/liquid interface, and the like; the preparation process is simple; the method is environment-friendly.

Monodisperse nanoparticles are prepared with a high degree of reproducibility by controlling pH in size-selective photoetching. The nanoparticles have uniform optical properties and other properties.

A microwave heating device for heating a load by means of microwaves is provided. The microwave heating device (300) comprises a cavity (350) arranged to receive a load to be heated and a feeding structure (325) for feeding microwaves in the cavity. The feeding structure comprises a transmission line (330) for transmitting microwave energy generated by a microwave source (310) and a resonator (320) arranged at the junction between the transmission line and the cavity for operating as a feeding port (320a) of the cavity. The dielectric constant of the material constituting the interior of the resonator and the dimensions of the resonator are selected such that a resonance condition is established in the resonator for the microwaves generated by the source and impedance matching is established between the transmission line, the resonator and the cavity. In addition, the present invention provides a microwave heating device (500) comprising a plurality of feeding ports (525, 525') with reduced crosstalk.

Intermittent energy sources, including solar and wind, require scalable, low-cost, multi-hour energy storage solutions to be effectively incorporated into the grid. Redox-flow batteries offer a solution, but suffer from rapid capacity fade and low Coulombic efficiency due to the high permeability of redox-active species across the battery's membrane. Here we show that active-species crossover can be arrested by scaling the membrane's pore size to molecular dimensions and in turn increasing the size of the active material to be above the membrane's pore-size exclusion limit. When oligomeric redox-active organic molecules were paired with microporous polymer membranes, the rate of active-material crossover was either completely blocked or slowed more than 9,000-fold compared to traditional separators at minimal cost to ionic conductivity. In the case of the latter, this corresponds to an absolute rate of ROM crossover of less than 3 μmol cm⁻² day⁻¹ (for a 1.0 M concentration gradient), which exceeds performance targets recently set forth by the battery industry. This strategy was generalizable to both high and low-potential ROMs in a variety of electrolytes, highlighting the importance of macromolecular design in implementing next-generation redox-flow batteries.

The invention discloses a plugging material and plugging method for a large leakage casing damage section of an oil-water well. The plugging material comprises a gel system and a resin system, whereina volume ratio of the gel system to the resin system is (4-8):(1-2); and the plugging method comprises the following steps: a leakage pore size is estimated by a deformation formula of a Bernoulli equation to provide a size selection support for a solid phase of the plugging material, leakage reduction operation is performed for multiple times by a strength gel, after leakage is less than 500 L/min, final plugging is performed by using a high-strength modified resin system, and therefore the purpose that the large leakage casing damage section of the oil-water well is successfully plugged atone time is achieved.

A size-selective hemocompatible porous polymeric adsorbent system is provided, the polymer system comprises at least one crosslinking agent and at least one dispersing agent, and the polymer has a plurality of pores with diameters in the range from about 17 to about 40,000 Angstroms

The present application provides apparatuses and methods for the size-selective fractionation of ligand-capped nanoparticles that utilizes the tunable thermophysical properties of gas-expanded liquids. The nanoparticle size separation processes are based on the controlled reduction of the solvent strength of an organic phase nanoparticle dispersion through increases in concentration of the antisolvent gas, such as CO₂, via pressurization. The method of nanomaterial separation contains preparing a vessel having a solvent and dispersed nanoparticles, pressurizing the chamber with a gaseous antisolvent, and causing a first amount of the nanoparticles to precipitate, transporting the solution to a second vessel, pressurizing the second vessel with the gaseous antisolvent and causing further nanoparticles to separate from the solution.

An objective of the present invention provides a scroll wheel input device that comprises: a scroll wheel providing a longitudinal scrolling and a lateral triggering, wherein the longitudinal scrolling provides a first dimension selection and the lateral triggering provides a second dimension selection; and a plurality of display elements comprising a multiple sets of first dimension display element group. Each of the first dimension display element group comprises at least one second dimension display element, wherein the first dimension selection is made by switching among the different first dimension display element groups via the longitudinal scrolling while the second dimension selection is made by switching among the at least one second dimension display element in the switched first dimension display element group via the lateral triggering.

An aerosol size-selective impactor for reducing particle bounce includes a main structure, a buffering layer, and a dehydration preventing layer. This main structure with an inlet and an outlet has a central channel and a receiving cavity. There are many nozzles in the inlet. The buffering layer is filled in the receiving cavity. The dehydration preventing layer is coated on the buffering layer for reducing the dehydration of water contained in the buffering layer. So, this invention utilizes the design of the receiving cavity to receive both layers. Its accuracy is high. Its sampling time lasts longer. It can endure vibrations. This invention can yield the particle bounce effect with lower cost. And, its application scope is wide.

The embodiments of the invention disclose an antenna and a mobile terminal. The antenna comprises a radiation part, wherein the radiation part is made of a nonmetal material and used for dividing a metal rear shell of the mobile terminal into at least two sections; the radiation part comprises a first radiation part and a second radiation part, the second radiation part is arranged at the bottom end of the metal rear shell, the bottom end is far from one end, where components are arranged, of the metal rear shell, and the first radiation part is arranged at the top close to the components; the first radiation part comprises a linear radiator and a curved radiator which are connected with each other, and the curved radiator is used for completely or partially surrounding the components. The limitation to the size selection and the position design of the components on the metal rear shell can be reduced on the premise that the performance of the antenna is ensured.