35 results about "Radial diffusion" patented technology

The invention provides a class of samples that model the human body. This family of samples is based upon emulsions of oil in water with lecithin acting as the emulsifier. These solutions that have varying particle sizes may be spiked with basis set components (albumin, urea and glucose) to simulate skin tissues further. The family of samples is such that other organic compounds such as collagen, elastin, globulin and bilirubin may be added, as can salts such as Na+, K+ and Cl-. Layers of varying thickness with known index of refraction and particle size distributions may be generated using simple crosslinking reagents, such as collagen (gelatin). The resulting samples are flexible in each analyte's concentration and match the skin layers of the body in terms of the samples reduced scattering and absorption coefficients, mums and muma. This family of samples is provided for use in the medical field where lasers and spectroscopy based analyzers are used in treatment of the body. In particular, knowledge may be gained on net analyte signal, photon depth of penetration, photon radial diffusion, photon interaction between tissue layers, photon density (all as a function of frequency) and on instrument parameter specifications such as resolution and required dynamic range (A/D bits required). In particular, applications to delineate such parameters have been developed for the application of noninvasive glucose determination in the near-IR region from 700 to 2500 nm with an emphasis on the region 1000 to 2500 nm (10,000 to 4,000 cm-1).

An internal mix air atomizing spray nozzle assembly having a nozzle body that defines a central liquid flow passage, an air guide for directing pressurized air within the nozzle, and a downstream air cap having an upstanding impingement post and a plurality of discharge orifice defining passages about the impingement post. The air cap passages each are oriented at compound angle with respect to a central axis for discharging atomized liquid flow streams in a conical spray pattern swirling in a predetermined rotative direction about the central axis, and the impingement post has a diffuser cap that defines a flat central liquid impingement surface and an outer annular array of non radial diffuser veins for directing the atomized liquid and pressurized air in a swirling fashion about the impingement post in the same relative direction as the swirling spray pattern from the air cap passages.

In accordance with one embodiment, a system includes a gas turbine diffuser. The gas turbine diffuser includes an axial diffuser section including a first duct portion having an axial flow path along a centerline of the gas turbine diffuser. The gas turbine diffuser also includes an axial-radial diffuser section coupled to the axial diffuser section, wherein the axial-radial diffuser section includes a second duct portion having a curved flow path along the centerline from the axial flow path to a radial flow path and the axial-radial diffuser section excludes any turning vane in the second duct portion.

The invention relates to an electric propelling engine gas distributor, relates to the problem that whether propellant gas distribution of an electric propelling engine is uniform or not and belongs to the field of electric propelling. Due to non-uniform distribution of gas inlet pipelines, traditional gas distributors cause non-uniform circumferential distribution of propellant gas in electric discharging channels, and consequently, electric discharging of thrusters is affected. In order to solve the problem, the gas distributor with circumferential and radial gas transmission grooves and non-uniform distributed axial gas transmission holes/grooves is designed. The gas distributor mainly comprises a distributor-upper bottom, a distributor-lower bottom, gas inlet pipes and fastening screws. By forming gas transmission grooves, circumferential and radial diffusion of the propellant gas are manually inhibited, and non-uniform axial gas transmission holes/grooves are formed according to the different propellant gas densities in the different positions, so that the propellant gas enters the electric discharging channels more uniformly and the uniform and stable neutral particle environment is provided for the thrusters.

The invention discloses a solid particle pre-whirl mixing pneumatic acceleration device and method. An acceleration nozzle is of a contraction-straight pipe type or scaling type; the primary air flow generates moderate rotational flow before entering the acceleration nozzle through a specially-designed cyclone or a similar device; the solid particles are directly sprayed to the front part of the nozzle throat in an air flow carrying mode; the solid particles sprayed from a thin pipe are accelerated along the flow direction while generating radial diffusion under the dragging of the rotating air flow; the rotation kinetic energy of the air flow can be gradually dissipated under the mutual effect between the wall surface and the solid particles; the space distribution of the particles is dissipated along with the rotational flow and tends to be stable; and finally, a uniform high-speed air-solid two-phase jet flow is formed. The device and method disclosed by the invention can be used for improving the uniformity of the space distribution of the particles and the speed consistency of the particles, and are of great significance in improving the technology quality of the industrial production of a material thermal spraying technology, sand blasting and the like and improving the test precision of the scientific research field of solid particle erosion acceleration test and the like.

The invention relates to catalytic rectification packing with radial distribution capacity. The interior of a structure A consists of packing sheets; catalysts are filled in the packing, and the exterior is coated by a screen; a structure B refers to regular packing sheets and can be windowing guide packing, plate ripple packing, screen ripple packing, pore plate ripple packing, rolled pore plate ripple packing, cellular packing and other regular packing. The two structures are alternately and circumferentially distributed in a packing disc. The structure A and the structure B are circumferentially arranged in a staggered mode, so that the number of vapor-liquid multi-phase flow channels are increased, the mass transfer process of vapor-liquid multi-phase flow is facilitated, the phenomena of channeling and short circuit of vapor-liquid multi-phase flow are effectively avoided, small bed pressure drop is realized, a multi-phase flow radial diffusion effect is effectively enhanced, the reaction products are timely separated, and forward reaction is promoted, so that the amount of catalysts can be reduced.

The embodiment of the invention provides a vacuum arc propeller based on a multi-anode structure. The vacuum arc propeller comprises a cathode structure, the multi-anode structure and an insulating part, wherein the cathode structure is externally connected with negative high pressure, and the multi-anode structure is grounded; the cathode structure is a tapered cylindrical structure and is used for generating metal plasma; the multi-anode structure comprises a first anode and a second anode; the first anode is in the shape of a spray nozzle, and is externally coated with an insulating medium;the second anode is annular, and is arranged on a position, which is spaced with the cathode structure by a preset distance; and a cone central axis of the first anode, a cone central axis of the second anode and a cone central axis of the cathode structure are superposed. The multi-anode structure can realize long-gap vacuum breakdown, so that vacuum metal arc is formed; and the insulating partis cylindrical, is coated outside the cathode structure, and is embedded into the first anode for insulating and mechanically fixing the cathode structure and the first anode. The vacuum arc propellerdisclosed by the invention can realize plasma radial diffusion, so that propelling performance of the vacuum arc propeller is improved.

The present application provides a radial diffuser exhaust system for use with a gas turbine engine. The radial diffuser exhaust system may include a radial diffuser positioned within an asymmetric exhaust collector. The asymmetric exhaust collector may include a closed end chamber and an exhaust end chamber. The closed end chamber may have a first size, the exhaust end chamber may have a second size, and the first size may be smaller than the second size.

The invention provides a manufacturing method for an MOS transistor. On one hand, charge mobility is increased by germanium-doped silicon epitaxy to inhibit hot carrier's effect; on the other hand, by an inner wall with a lower top, radial diffusion is inhibited in lightly doped source/drain (LDD) region after ion implantation and the depth of the lightly doped source/drain (LDD) extension region is controlled, which allows ultra-shallow junction shallower. Therefore longer effective channel is obtained, HCI effect is effectively inhibited, SCE and RSCE effects are significantly improved and breakdown effect and electric leakage caused by breakdown effect brought by shrunk device size are reduced, enabling the production of even shallower source/drain region junction in the ultra-shallow junction technology.

The invention relates to a horizontal radial electrolysis method and a horizontal radial electrolysis device. The device comprises a base body, a first battery lead plate, a second battery lead plate, a cover body and a water connection; the first battery lead plate and the second battery lead plate are arranged between the base body and the cover body and the water connection is arranged on the base body; wherein, the first battery lead plate and the second battery lead plate are arranged on horizontal opposite surfaces of the cover plate and the base body; the center of one battery lead plate of the first battery lead plate and the second battery lead plate is provided with a water inlet; raw water is directly led into the water inlet and flows out by means of horizontal radial diffusion; under the condition of electrolysis, an acid water layer and an alkaline water layer are respectively formed on horizontal sides of the first battery lead plate and the second battery lead plate; the cover body and the base body opposite to the battery lead plates are provided with a first effluent flow path and a second effluent flow path, thereby acid water and alkaline water are shunted and led out.

A medicinal fluid injection device for injecting a medicinal fluid into the skin of a patient so as to induce collagen generation and skin regeneration according to the radial diffusion of the medicinal fluid. The device includes a case part constituting the appearance; a medicinal fluid placing part mounted on the case part and in which a storage container storing a medicinal fluid is mounted; a medicinal fluid supply part connected to the storage container so as to supply a medicinal fluid; a medicinal fluid pressurization part mounted on the case part, and connected to the medicinal fluid supply part so as to pressurize the supplied medicinal fluid; and a medicinal fluid discharge part mounted on the medicinal fluid supply part so as to inject the medicinal fluid supplied from the medicinal fluid supply part.

The invention relates to a radio frequency plasma enhanced chemical vapor deposition method and a radio frequency plasma enhanced chemical vapor deposition device. The radio frequency plasma enhanced chemical vapor deposition method comprises the following steps: a coating chamber is subjected to vacuumizing, reactant gas is supplied from a plasma generation chamber, a radio frequency source connected with a radio frequency antenna is started for exciting the reactant gas to be ionized, a terminal magnetic body for restricting a plasma flow to diffuse in the radial direction is arranged on one side, opposite to the plasma generation chamber, of the coating chamber, the magnetic induction intensity of the terminal magnetic body is set to be greater than that of a source magnetic body, and coating is carried out. According to the radio frequency plasma enhanced chemical vapor deposition method, by employing the synergistic effect of the source magnetic body and the terminal magnetic body, field restriction and distribution regulation on plasma beam current entering the coating chamber are carried out, the plasma beam current achieves a long-distance stable effect and a distribution controllable effect, the ion density of the plasma beam current is equivalent to the ion density nearby a plasma source in the plasma generation chamber, so that long-distance stable propagation of the plasma beam current is realized.

The invention relates to a fan blade hub which comprises a hub body, a hub fan blade and a coupling device, wherein the inner diameter side of the hub body is connected with the hub fan blade, the outer diameter side of the hub body is connected with axial-flow cooling fan blades, the coupling device is connected with the center of the hub body, the fan blade hub is connected with a driving motor through the coupling device, the coupling device can be a coupling insert, the hub fan blade comprises a plurality of hub blades which can be straight blades, fan blade outlets are arranged among the hub blades, the flow line of the outlets is in radial diffusion. The fan blade hub provided by the invention has the advantages that the original space is fully used to arrange the fan blade, the cooling to the driving motor is strengthened under the condition that the strength is not reduced, and the running stability of the motor is improved.

The invention discloses a superconductive current limiter with a composite insulation structure. The superconductive current limiter comprises a superconductive current limiting unit, an inner composite insulating cylinder, an outer composite insulating cylinder and a low-temperature container, wherein the inner composite insulating cylinder coaxially sleeves the superconductive current limiting unit along the axial direction; the low-temperature container coaxially sleeves the external composite insulating cylinder along the axial direction; the superconductive current limiting unit is fixedly connected with the inner composite insulating cylinder through inner insulating supporting pieces, and the low-temperature container is fixedly connected with the outer composite insulating cylinderthrough outer insulating supporting pieces. Through the outer composite insulating cylinder connected with the low-temperature container, and the inner composite insulating cylinder connected with the superconductive current limiting unit, air bubbles generated by the low-temperature container are blocked between the low-temperature container and the outer composite insulating cylinder; bubbles generated by the superconductive current limiting unit are blocked between the superconductive current limiting unit and the inner composite insulating cylinder, so that a radial diffusion path of thebubbles in a liquid nitrogen space is blocked, generation of the bubbles between electrodes is prevented, and the insulating effect of the resistive superconductive current limiter is ensured.

The invention provides a manufacturing method of an MOS (metal oxide semiconductor) transistor. A spacer with the top lower than the bottom of a gate oxide is used for inhibiting radial diffusion of a subsequent LDD ( lightly doped source/drain) region subjected to ion implantation, and the depth of a formed subsequent LDD extension region is controlled, so that an obtained ultra-shallow junction is shallower, short-channel effect is reduced, and junction capacitance is lowered; and further, the junction capacitance and the junction leakage are lowered by increasing the charge transfer rate by the aid of a strained silicon layer and a germanium silicon layer.

The invention belongs to the technical field of medical apparatus and instruments, and discloses a brain surgery auxiliary instrument for the neurosurgery department. The brain surgery auxiliary instrument comprises an image data collecting module, a dispersion weighting module, a preprocessing module, an extracting module and an analysis module, wherein the image data collecting module is used for collecting two groups of brain image data of a normal people group and a patient group; the dispersion weighting module is used for carrying out processing on a graph collected by the image data collecting module by utilizing a dispersion weighting sequence, and thus dispersion image data is obtained; the preprocessing module is used for carrying out preprocessing on the dispersion image data; vortex removing processing and head movement correcting are carried out on the dispersion image data by adopting FSL software based on Linux; the extracting module is used for extracting the features of an anisotropy skeleton image, an average diffusion rate skeleton image and a radial diffusion rate skeleton image of each individual obtained by the preprocessing module; the analysis module carriesout multivariate analysis on the obtained areas with significant differences. For the brain surgery auxiliary instrument, by utilizing the DTI imaging model, through the multivariate research method,a lesion area is found for the clinical treatment, and radiologic evidence is provided.

The invention relates to a temperature detection device for a heating plate of a thermoplastic pipe butt fusion welding machine. The temperature detection device comprises a temperature detection mechanism, a heating plate centering mechanism, a heating plate heating mechanism and a control system, the temperature detection mechanism comprises a sensor radial diffusion movement mechanism and a synchronous reverse movement mechanism, and the heating plate centering mechanism comprises a heating plate clamping mechanism and a locking mechanism. According to the temperature detection device, theautomatic temperature detection of the heating plate of the butt fusion welding machine is realized, the temperature measurement of heating plates of various sizes can be realized, instantaneity and the timeliness are realized in the temperature measurement process, data is more accurate and can be compared, and the temperature distribution condition on the working area of the heating plate can beaccurately described.

The invention provides an axial flow fan blade and an axial flow fan, and relates to the technical field of fans. The axial flow fan blade comprises a hub and a plurality of blade bodies arranged on the hub in the circumferential direction. Each blade is provided with a front edge, an outer edge and a tail edge which are sequentially connected, wherein a straight line formed by two end points of the outer edge serves as a first straight line, the included angle formed between the first straight line and a first plane is alpha, the first plane is perpendicular to the axis of the hub, and alphais larger than or equal to 20 degrees and smaller than or equal to 35 degrees. According to the axial flow fan blade, the structure of the blade bodies is optimized, so that the included angle betweenthe straight line formed by the two end points of the outer edge and the plane perpendicular to the axis of the hub is alpha, and alpha is larger than or equal to 20 degrees and smaller than or equalto 35 degrees. Therefore, the air blowing effect of the supply air flow generated by the axial flow fan blade is more stable, and the problem of radial diffusion is not likely to occur is solved.