56 results about "Effective density" patented technology

An edge-lit panel features extractor patterns that produce uniform illumination. The effective density of extractor pattern pixels is adjusted to achieve uniform illumination. A method of adjusting the effective pixel density of extractor pattern pixels to achieve uniform illumination entails adjusting areas of darkness of a grayscale image, then producing a binary image by dithering the grayscale image, and applying an extractor pattern corresponding to the binary image to a surface of the panel. The extractor pixels correspond to pixels of the binary image derived from a dithered grayscale image, with the darkness of the grayscale image increasing with distance from the light source. Effective pixel density is increased to compensate for attenuated output in dim areas. By adjusting gray shading darkness of a grayscale image, pixel density can be adjusted to achieve uniform light emission. The extractor pixels may be applied using a radiation curable ink, which can be used in high speed inkjet printers that can achieve production speeds. The resulting print is waterproof, embossed and vibrant.

A pair of preferably substantially buoyant-in-water hand pliers comprising a pair of non-metallic lever members each having a handle portion and a jaw portion and formed of material preferably having a density greater than water. The lever members are pivotally connected together at common central portions between the jaw and handle portions. Each handle portion preferably has one or more outwardly opening cavities formed into a side surface of the handle portions. An elongated tubular sheath preferably formed of material buoyant in water covers and sealingly encloses the cavities whereby the effective density of the pliers to less than that of water. An effective, durable, non-corrosive wire cutting arrangement is also provided, the components uniquely configured and supported in the non-metallic jaw portions.

A non-conductive substantially buoyant-in-water hand tool comprising an elongated handle portion formed of non-corrosive, non-conductive material having a density greater than water and an elongated working tool connected to and extending axially from a proximal end of said handle portion. The handle portion has one or more outwardly opening cavities formed into a side surface of the handle portion. An elongated tubular sheath formed of material buoyant in water covers and sealingly encloses and forms one or more airtight cavities whereby the effective density of the hand tool is less than that of water.

An apparatus having an impeller for measuring a property of a fluid in a wellbore, wherein an effective density of the impeller is substantially not greater than a density of the fluid. The apparatus is operable within a fluid flowing in a wellbore that extends into a subterranean formation, thereby measuring a property of the flowing fluid.

Paperboard is densified in selected discrete regions spaced apart along the board such that the effective caliper of the board (defined between the surfaces of the board in the areas outside the densified regions) remains essentially unchanged compared to an equivalent board that is not selectively densified. Thus, the effective density of the board also remains unchanged. The densified regions impart mechanical properties to the paperboard. The shapes, sizes, depths, and arrangement of the densified regions can be selected to impart increased strength in certain directions. For example, the ratio of the machine direction (MD) to cross-machine direction (CD) compressive strength can be manipulated through selective densification in accordance with the invention. The paperboard is useful in laminate structures and other uses.

The invention relates to an electric heating device and particularly relates to an electric heating element for heating gas flowing in a pipeline and a pipeline electric heater adopting the electric heating element. The electric heating element comprises a cylindrical base body which is manufactured by a fireproof material; vertical mounting grooves are uniformly distributed on the outer cylindrical face of the base body; a spiral resistance wire is placed in each mounting groove in a reciprocated manner; and extraction electrodes are arranged at the two ends of each resistance wire. According to the electric heating element disclosed by the invention, the resistance wires are highly-densely distributed on the vertical mounting grooves on the outer cylindrical face of the base body; the structure is compact and the occupied space is small; and the effective density and the heating power of the heating elements of the pipeline electric heater are effectively improved.

The invention especially related to electrochemical method for measuring effective density of hole in anodic aluminum oxide (AAO) template. Usual three-electrode system and potentiostat are adopted in the method. Working electrode is dish electrode of metal platinum (or gold, glassy carbon), and there is electrode of AAO template. Ferricyanide is as solution. Na2SO4 or KCl is as electrolyte. Using diffusibility of ferricyanide on surface of working electrode, the method measures effective density of hole in AAO template by using electrochemical voltmeter-ammeter method. Features are: simple method and good reliability.

The invention discloses a micro-sand synergism and caked flocculation integrated water quality purification device, which uses the caked flocculation technology as the core, adds micro-sands to serve as the carrier, further improves caking density and strengthens purification effects on low turbidity water by caked flocculation. Simultaneously, mechanical friction and extrusion in a suspension layer of a high-density caking body and an adsorption bridging function of polyacrylamide (PAM) improve sticking blocking effects on algae by the compact suspension layer, and high-efficient purification on high algae-laden water can be achieved. Effective density of the suspension layer is improved by adding micro-sands in the device, so that ascending velocity of a main body device is improved, and capacity for processing load and resisting impact load is improved. Through meshing of an inner gear, one driving motor respectively drives a reaction stirring shaft and a separation stirring shaft by providing two different rotation speeds for separating caked flocculation and slit, and integrity level of the main body device is improved. Slit separation in the main body device is simultaneously achieved, additional slit separation devices are not required, equalization degree of the device is high, floor space is small and operation is easy.

The invention relates to a drug used to treat heart blood vessel disease, and relative production. Wherein, said drug is formed by the alcohol extractives of chavicol and leek, and relative auxiliary materials; and the extraction method of them comprises adding alcohol water solution into chavicol and leek, to be heated, refluxed and extracted; combining the extractive solutions, recycling and concentrating alcohol until the volume percentage of alcohol is lower than 5%; diluting with water, adding porous adsorption resin, washing out foreign material with water, and washing with alcohol water solution, collecting the alcohol elution, concentrating and recycling the alcohol to obtains said alcohol extractives. Compared with present traditional medicine, the invention has high effective density, reduce the oral amount, and remove the inactive component.

An air removal device removes air from blood flowing in a perfusion system. A chamber is provided having a blood flow region at a lower end thereof and having an air collection region at an upper end thereof. The chamber further has an inlet, a blood outlet, and an air outlet vertically higher than the inlet. There is a vertical guide structure in the air collection region. A float is disposed for vertical movement following the vertical guide structure, wherein the float has an effective density less than the density of blood. A lever arm having a first end follows vertical movement of the float and has a second end pivotally mounted at a pivot point that is stationary with respect to the vertical guide structure. A valve is coupled to the air outlet and to an intermediate point of the lever arm for closing the air outlet when the float is at its vertically highest position.

The invention discloses an artificial synthetic new-typed anti-cancer drug with a series of ion liquid structure, whose structural formula is displayed in the formula (I), wherein R1,R2, R3,R4,R5,R6,X are defined as instruction; the compound inhibits tumour cell strongly such as Hela299,B16,SMMC-7721 and so on in the external anticancer activity test with effective density less than 10 mug/ml.

An optical beam steering device includes an at least partially optically transparent container having a polygonal reflector therein that is at least partially surrounded within the container by an optically transparent liquid. The polygonal reflector may be configured to have a center of mass, which is equivalent to its geometric center. In addition, the polygonal reflector may be configured so that a difference between an effective density of the polygonal reflector and a density of the optically transparent liquid is preferably less than about 2.1 grams per cubic centimeter. More preferably, the polygonal reflector and the optically transparent liquid may be collectively configured to be neutrally buoyant relative to each other within the container.

An input blood supply within a blood perfusion system is pumped through a chamber. A centrifugal flow of the input blood supply is formed in a bottom region of the chamber to cause air to migrate toward an axial center of the chamber. A float is buoyantly suspended on the centrifugal flow wherein the float is disposed for vertical movement in the chamber, and wherein the float has an effective density less than the density of the blood. When a volume of air present within the chamber is less than a predetermined volume, then the float closes a valve at an air outlet from the chamber. When a volume of air present within the chamber is greater than the predetermined volume, then the float opens the valve to remove air from the chamber.

The invention discloses an iron-based spheroidized micro-nano magnetic powder core and a preparation method thereof. The iron-based spheroidized micro-nano magnetic powder core is prepared from the following raw material components in percentage by weight: 83.2 to 84.8 wt% of iron, 8.3 to 8.9 wt% of silicon, 1.55 to 1.95 wt% of boron, 3.9 to 4.1 wt% of niobium, 0.9 to 1.1 wt% of molybdenum, 0.13 to 0.17 wt% of nickel and 0.95 to 1.05 wt% of copper. The corresponding preparation method comprises the following steps of: 1) preparing a quenched strip, 2) strip heat treatment, 3) ball-milling to prepare magnetic powder, 4) carrying out plasma spheroidizing treatment, and 5) integrally molding and pressing the spheroidized magnetic powder into a magnetic powder core. The iron-based micro-nano magnetic powder subjected to plasma spheroidizing treatment is mostly of a spherical structure, copper wire breakage in the pressing process cannot be caused, the pressing tonnage (65 T is increased to100 T) of the integrally-formed magnetic powder core can be improved, the effective density is increased by about 5 to 10%, and the comprehensive magnetic performance parameters are remarkably improved; the surface layer is formed by secondary remelting, metallurgical strength and plasticity are achieved, and secondary embrittlement in the pressing process of the integrally-formed magnetic powdercore can be effectively reduced.

The invention relates to a method for accurately selecting diameters of steel rods of rod mills, and belongs to the field of ore grinding in ore dressing. The method comprises the following steps of: firstly calculating a mechanical property comprehensive parameter Kc according to secant Poisson ratio of ores; substituting a measured rod mill 95%-feeding screening particle size value d, a rock ore maximum uniaxial compressive strength <sigma>, an effective density <rho>e of a steel rod in ore pulp, an effective length l of the steel rod, a middle poly-condensation layer diameter D0 of the steel rod and a rotation rate <gamma> of a mill into a steel rod diameter calculation formula, so as to calculate an accurately determined steel rod diameter Dr; and finally carrying out ore grinding comparison experiment on the calculated Dr diameter and the other steel rods with different sizes under same conditions, so as to verify the accuracy of Dr via optimum ore grinding effect. According to the method provided by the invention, dozens of factors such as compressive strength and tenacity of the ore, the rotation rate of the mill, a filling ratio, an ore grinding concentration and the like are considered, so that the universality and pertinence are stronger, and a feasible method is provided for accurately selecting the diameters of the steel rods of the rod mills.

The invention discloses a method and system for predicting the shaft bottom pressure. The method comprises the steps: a shaft is sectioned; the drilling cutting concentration of all sections is calculated, and the drilling cutting concentration is the volume concentration of drilling cuttings in annuluses; the effective density and rheological parameters of drilling fluid of all the sections are calculated; annulus pressure losses of all the sections are determined; and according to the annulus pressure losses of all the sections, the shaft bottom pressure is calculated. By considering influences of the drilling cuttings on the rheological property of the drilling fluid, the predicting accuracy rate of the shaft bottom pressure can be increased, and thus the predicted shaft bottom pressureis closer to the real shaft bottom pressure.

The invention relates to an electrical kiln used for firing a cadmium red glaze porcelain with three-meter height. The electrical kiln comprises a furnace body and a base, wherein the furnace body is internally provided with a hearth, a furnace shell is arranged outside of the furnace body, a first insulating layer is arranged between the furnace shell and the hearth, and the inner side of the first insulating layer is provided with a first temperature-resistant layer; the base comprises a base shell, a second insulating layer and a second temperature-resistant layer, wherein the second insulating layer is arranged between the base shell and the second temperature-resistant layer, and the hearth is internally provided with first heating resistance wires; the base is provided with second heating resistance wires, the first heating resistance wires are arranged on the middle part and the lower part in the hearth, and the first heating resistance wires count 50%-75% of the whole hearth space; and a spacing between every two wires of the first heating resistance wire is 10-25 centimeters, and a spacing between every two wires of the second heating resistance wires is 10-30 centimeters. The electrical kiln provided by the invention has the advantages that the structure is simple and compact, the distributing wire density is relatively large, the configuration is reasonable, the power effective density is reasonable, the heat uniformity is good, the service life is long, and the application rang is wide.