223 results about "Semidiameter" patented technology

The invention relates to a lower limit method for the reservoir forming physical property of an effective reservoir layer under the restraint of reservoir forming power and pore structure, comprising the following step of: on the basis of building a function relationship between the tension force of an oil-water interface and the temperature of a stratum system, building a function relationship between the semidiameter and the permeability of a maximum through hole throat of a reservoir layer, and building a function relationship between K/phi and K of the reservoir layer under the restraint of hole throat structure type, computing the reservoir forming physical property lower limit of the effective reservoir layer under the restraint of the reservoir forming power and the pore structure under different stratum temperature conditions. The research result of the method is combined with the research result of the physical property recovery and the reservoir forming power recovery of the reservoir layer in the geological historical period, so that the effectiveness of the reservoir layer in the geological historical period can be evaluated, and the oil gas distribution law in the reservoir forming period can be analyzed, therefore, the method has an important meaning for guiding the oil-gas exploration and deployment.

The invention provides a formation factor determining method and an oil saturation determining method, wherein the formation factor determining method comprises the following steps of: selecting a representative series core of a secondary pore development low-percolation oil-gas layer; measuring and obtaining a core porosity degree phi, a percolation rate K, a capillary pressure curve Pc and an average pore-throat semidiameter, wherein the core porosity degree phi is used for reflecting conductive fluid volume and a conductive path in rock, and the conductive fluid volume and the conductive path in the rock are used as parameters for determining a formation factor F. The invention has the specific relational expression: determining the formation factor according to the conductive fluid volume and the conductive path, and factors a, b and c are obtained by calibrating core data. The invention introduces the conductive fluid volume and the conductive path as the parameters to determine the formation factor, and a formation factor calculation result more conforms to an actual formation condition for determining a more accurate oil saturation result.

A reforming catalyst comprises Gamma-alumina carrier and the following active components calculated by taking the carrier as primary standard according to the mass percent: 0.1 to 3.0 percent of VIII metal, 0.1 to 3.0 percent of VIIB metal, and 0.5 to 5.0 percent of halogen. The specific surface area of the Gamma- alumina is 210 to 250m<2>/g and the hole volume is 0.5 to 0.55ml/g; wherein, the holes semidiameter of which are less than 2 nanometer account for 2.0 to 5.0 percent of the total hole volume; the holes semidiameter of which are 2 to 5 nanometer accounts for 90 to 94 percent of the total hole volume; the holes semidiameter of which are 5 to 10 nanometer accounts for 3 to 6 percent of the total hole volume; the holes semidiameter of which are more than 10 nanometer accounts for 0.1 to 1.0 percent of the total hole volume. The catalyst used in naphtha reforming has the advantages of high liquid yield and aromatic hydrocarbon yield.

The invention provides an earth mass stillness lateral-compression coefficient determinator which comprises a pressure chamber, a loading device and a measurement control device, wherein the loading device is arranged on the top or bottom of the pressure chamber; the pressure chamber comprises a base, a bottom plate and a supporting pad which are arranged on the base, a sample drum arranged on the supporting pad, an upper pressure plate matched with the top opening of the sample drum, and a pressurization cover plate and a loading sensor which are successively arranged on the upper pressure plate from top to bottom; the bottom plate is a rounded bottom plate composed of two hemicycle metal plates with same semidiameter, and the sample drum is composed of two semicircle drums on the outer side wall of the sample drum and is connected with the two semicircle drums through at least two pairs of pull pressure sensors; the upper pressure plate is composed of a hemicycle metal plate; and the signal interface of a measurement control device is respectively connected with the loading device, the loading sensor and the pull pressure sensor, the measurement control device outputs a signal to the loading device, and the loading sensor and the pull pressure sensor output signals to the measurement control device. The determinator provided by the invention has the advantages of simple structure and wide application range.

The invention discloses an engine airtight detection rapid plugging head, comprising a cam handle, a cam, a pull rod, an upper gasket, a rubber sleeve, a lower gasket and a nut; wherein the pull rod is sheathed with the upper gasket and the rubber sleeve, the upper gasket is arranged above the rubber sleeve, the bottom of the rubber sleeve is adhered with the lower gasket, the lower gasket is limited by the nut sheathed on the pull rod; the cam is arranged above the upper gasket, the cam is arranged at the bottom of the cam handle, and the cam is hinged with the upper end of the pull rod. The invention can effectively reduce mounting time of plugging head, plugging efficiency is improved, the semidiameter of the cam handle rotating downward is small, the plugging head can be used in narrow space, and the plugging head has the characteristics of simple structure, easy and rapid operation and wide application range.

The invention relates to a power supply scheme auxiliary generation method based on a GIS (geographic information system), and belongs to the technical field of electric power electric network management. The method comprises the following main steps of: determining a specific electricity utilization place through the search of an electric network GIS platform; searching power distribution facilities in a set semidiameter range, if the power distribution facilities are searched, calculating opening capacity of the power distribution facilities, marking the power distribution facilities of which the opening capacities are greater than the required capacity applied by users as available power distribution facilities, comparing the opening capacities of all available power distribution facilities, and selecting the power distribution facility provided with maximum opening capacity as a terminal power distribution facility; and generating a power supply scheme. After the method is adopted, stable and reliable power supply in the future can be ensured by virtue of a GIS (geographic information system) of a computer, and economy and scientificalness of construction work and power supply cost are considered; and in addition, the generation of the power supply scheme is timely and visual, can realize 'zero waiting' reply, and is related with marketing power distribution data in modern times, thereby conveniently realizing the intercommunication of operation flow.

The invention discloses a defocus blurred image sharpness processing method, which is implemented according to the following steps: firstly, the mean value and the variance of the edge width is calculated according to gradient information of an image; an initial parameter of a fuzzy model is obtained according to the statistical data; secondly, the blurred image is divided into concentric circles around the center of the image and is broken down into sub-images, wherein, the number of the concentric circles is k and the number of the sub-images is k+1; the corresponding blurred initial semidiameters are distributed to the sub-images; the optimal blurred semidiameter is found through an iterative mode, and the sharpness processing of all sub-images is performed by adopting a frequency domain inverse-filtering manner; finally, all the sub-images are added to synthesize the whole sharpness image. The defocus blurred image sharpness processing method overcomes the limitations in the existing circular disc function modeling recovery method based on the fixed semidiameter, and serves the purpose for restoring the sharp image.

The invention relates to a trafficability route-finding algorithm of a vehicle navigation system. The trafficability route-finding algorithm is characterized in that a starting point and a finishing point of a route are respectively arranged in two road networks by a trafficability road network model so that the two road networks can be communicated with each other in a passing region range so as to ensure a specified passing region is in the route-finding process from the starting point to the finishing point; a large passing region semidiameter is set when the distance of the starting point and the finishing point is far and the large passing region semidiameter is set when the road network density is small by adopting a region semidiameter adjusting scheme so as to ensure a planned route to effectively pass through the region semidiameter and not necessarily to pass through a control point; and the route is guided to pass through the specified region by adopting virtual finishing point route-finding, setting a virtual finishing point and utilizing A* algorithm and the route is guided to be planned from the specific region to the finishing point by adopting direction changing route finding and changing route finding guide cost so as to ensure the accuracy and the reliability of the results. A route planned by the trafficability route-finding algorithm can meet user's intent to pass through the passing region, can meet cost minimum standards, and can be used for various embedded vehicle navigation systems.

The invention provides a fluctuating surface pre-stack time migration method and device based on common aperture surface; the method comprises: taking the presupposed migration aperture as semidiameter, obtaining seismic data in the current work area and a surface height of a surface where the seismic data lies; smoothing the surface height so as to obtain a common aperture surface; taking the common aperture surface as a reference surface and performing the fluctuating surface pre-stack time migration treatment on the seismic data so as to obtain geologic body image data of time domain. The technical scheme performs the pre-stack time migration by taking the common aperture surface that is relatively smooth and rather small in height as the reference surface, thereby being capable of overcoming the defect of structuring wrong geological shape by the pre-stack time migration due to big difference of the height of the floating reference surface in the prior art so as to construct the geological shape with higher precision.

The invention belongs to the technical field of conformal antennas, and provides a millimeter wave circular conical surface conformal integrated waveguide slot array antenna. The antenna is arranged on a metal circular cone carrier surface, and is composed of a lower metal copper-clad layer, a dielectric substrate layer and an upper metal copper-clad layer which are laminated in sequence from bottom to top; the dielectric substrate layer is internally provided with a plurality of plated through holes arranged into a quadrangle so as to form a substrate integrated waveguide; and the width of the substrate integrated waveguide WPhi and the semidiameter r of the cross section of a metal circular cone carrier meet the relational expression as shown in the description. The change of propagationcharacteristics caused by geometric characteristics is eliminated through the width change of the integrated wave guide, so that circular conical surface conformal substrate integrated waveguide propagation characteristics realize the conformal effect of plane and cylindrical surface.

The invention discloses a method for predicting the creep life of the refractory steel of the station boiler, which proposes a creeping cavity nucleus model and then further proposes a calculating method of the corrected semidiameter of the critical creeping cavity. The calculating method adopts econometric analysis by microexamination, calculating the semidiameter of the critical creeping cavity according to the change on the core quantity and size of the serial nucleation like the carbide and the occluded foreignsubstance in the whole operational period of high temperature creep of the refractory steel; and then calculating the actual-growing cavity semidiameter according to the change on the core quantity and size of the serial nucleation of the actual fracture specimen (or actual pipe section specimen that are periodically inspected), thus gaining the fracture time by calculation with a good accordance with the practical value.

The invention provides a mower cutting mechanism, belongs to the garden equipment technical field, and solves the problems in the prior art that an existing mower can easily have blocking problems when a blade is worn; the mower cutting mechanism comprises a machine frame, a fixed cutter, a hobbing cutter and a drive mechanism driving the hobbing cutter to roll; the hobbing cutter comprises a hobbing cutter shaft, tool rests, and a plurality of hobbing blades; the hobbing blade is fixedly provided with a transition ring; the projection of the transition rings along the hobbing cutter shaft axial direction and the projection of the hobbing blades along the hobbing cutter shaft axial direction are respectively in an annular shape, wherein the two projections are concentric and peripheral semidiameters of both are same; the fixed cutter is arranged on the machine frame, can automatically approach to the hobbing cutter through an automatic toolsetting mechanism, and can attach to the blade portion of the hobbing cutter so as to form a shearing edge. The automatic toolsetting mechanism is compact and reasonable in structure, can automatically adjust blade gaps, and the hobbing cutter can contentiously work with no blocking in working process.

The disclosure is a baking apparatus including a susceptor, lift pins, and guiding blocks positioned at the edge of the susceptor to lead a wafer to be exactly positioned on the susceptor. The guiding blocks are linearly movable within a range of a semidiameter of a plate. A wafer is partially mounted on a wafer guide, being inclined against the susceptor, and thereby may heats uniformly.

The invention discloses a fully-sealed transmission mechanism of a semi-rotating shuttle sewing machine. The fully-sealed transmission mechanism comprises an upper housing case, a lower housing case, a lower main shaft, a swinging gear shaft, an upper main shaft, a link rod and a sealing box body arranged in the upper housing case, wherein the lower main shaft is arranged in the lower housing case, and is provided with a lower main shaft gear; the swinging gear shaft is arranged on the lower side of the lower main shaft, and is provided with a swinging gear meshed with the lower main shaft gear; and the upper main shaft horizontally passes through the sealing box body in the upper housing case, and is provided with a cam; the cam on the upper main shaft and the pin shaft of the swinging gear are respectively sleeved with the two ends of the link rod; the upper main shaft and the cam are of an integral structure, and the outer diameter of one side of the cam is smaller than the semidiameter of the upper main shaft. The fully-sealed transmission mechanism connects the cam with the upper main shaft into a whole under the condition that the eccentric distance remains unchanged, thereby reducing the volume. Besides, the perfect-sealed transmission mechanism runs in the machine oil in the sealing box body, thereby solving the difficult problems that the prior product has large noise, the machine oil pollutes the sewing, the abrasion is fast, the rotating speed is low, and the maintenance is inconvenience, and greatly improving the service life and the working efficiency.

The invention discloses a Taichi type graphene filter choke and a manufacturing method thereof. The choke comprises a plurality of groups of circular coils, an S-shaped coil, a positive pin and a negative pin, wherein one end of the S-shaped coil is connected with the first group of circular coils, the other end of the S-shaped coil is connected with the second group of circular coils, the first group of circular coils is connected with the third group of circular coils, the second group of circular coils is connected with the fourth group of circular coils, successively, the M-th group of circular coils is connected with the (M+2)-th group of circular coils, the (M+1)-th group of circular coils is connected with the (M+3)-th group of circular coils, and the M is greater than or equal to 3; the (M+2)-th group of circular coils is connected with the positive pin, and the (M+3)-th group of circular coils is connected with the negative pin; the first group of circular coils to the (M+3)-th group of circular coils are the same in semidiameters, and are arranged in parallel successively to form a tubular choke structure; the choke consisting of the groups of circular coils and the S-shaped coil is formed by circling a wire rod, and the surface of the wire rod is uniformly coated with a filter layer.

The invention discloses a temperature analyzing method for a lockup clutch friction plate of a hydraulic torque converter. The temperature analyzing method comprises the following steps of: 1, obtaining controlling oil pressure and friction rotation speed of a lockup clutch of the hydraulic torque converter through a CAN (controller area network) line; 2, calculating heat-flow density of the lockup clutch friction plate: the heat-flow density q is obtained through a formula: q= mu Rp delta omega, wherein mu is a friction factor of the friction plate, R is the semidiameter of the friction plate, the unit of the R is millimeter, p is the controlling oil pressure of the lockup clutch, the unit of the p is Pa, the delta omega is the sliding friction speed difference of the lockup clutch, and the unit of the delta omega is rpm; 3; establishing a two-dimensional simplified model of the lockup clutch of the hydraulic torque converter; 4, establishing a three-dimensional flow fixed coupled model of the lockup clutch of the hydraulic torque converter, generating a grid and setting a boundary condition, wherein the boundary condition comprises a material characteristic, a boundary convective heat transfer coefficient, a periodicity boundary, an operation oil inlet parameter, an operation oil outlet parameter and a friction plate heat boundary condition; and 5, simulating and calculating the temperature of the converter lockup clutch friction plate of the hydraulic torque converter.

The invention belongs to the field of measurement technology, which relates to a video camera calibration method of small size visual measurement based on a composite plane target. The composite plane target designed by the invention comprises a black square block and a white circular speckle, the center of the white circular speckle is coincident with the center of the black square block, and the semidiameter of the white circular speckle is less than that of the black square block; the composite plane target generates no less than 12 high precision gauge points having projective invariant by utilizing the characteristic that a point and a tangent point of a circle have the projective invariant; and a nonlinear optimization method is adopted to gauge the video camera by utilizing generated world coordinate and image coordinate of the 12 gauge points. The target has simple structure and low cost, and can be suitable for gauge to the video camera of various size visual measurements.

The invention discloses a use method of an outer rotor reluctance motor, an optical-mechanical-electrical integrated control system and three-phase alternating current, which comprises the following steps: connecting and transiting two inner concentric cambered surfaces to two concentric arcs with larger diameters respectively through two eccentric arcs respectively so as to form a bipolar non-salient pole type outer rotor core, wherein the two inner concentric cambered surfaces are radially opposite to each other, have the same semidiameter and equal arc lengths, and are not more than the angle amount occupied on the circumference by a stator magnetic pole, and the diameter of the two inner concentric cambered surfaces is slightly larger than the maximum diameter of the stator magnetic pole; making the rotary cooperation between the inner cambered surface of the magnetic pole of the outer rotor core and the outer cambered surface of each stator magnetic pole to completely satisfy the requirement that a working air gap changes gradually in a descending order; then forming a movable connection through an end cover of the motor, a bearing and a hollow dead axle for mounting and fixing the stator core; forming all the motion mechanism of the outer rotor reluctance motor; and adopting an opto-coupler automatic switch for control. Thus, the method is particular suitable for use on a two-wheel electric motorcycle. The invention also relates to a method for directly starting a two-phase outer rotor reluctance motor and a two-phase reluctance motor by using three-phase alternating current.

The invention relates to a folding releasing joint and a children stroller. The folding releasing joint comprises a rotating shaft, a first baseplate, a middle plate, a second baseplate, and a connecting bar, wherein rotating shaft holes allowing a rotating shaft to penetrate are formed in the first baseplate, the middle plate and the second baseplate; a long hole extending in the radial direction of the rotating shaft hole is formed in the first baseplate; an open slot is formed in the middle plate; an arc-shaped groove is formed in the second baseplate; the semidiameters of the arc-shaped groove are diminished in sequence in the folding direction of the folding releasing joint by adopting the rotating shaft hole as a center; the first baseplate and the second baseplate are arranged on the two sides of the middle plate respectively; the two sides of the connecting bar protrude and extend respectively to form a first shaft part inserted into the long hole in the first baseplate and a second shaft part inserted into the arc-shaped groove in the second baseplate; the first shaft part and the second shaft part can move in the long hole and the arc-shaped groove respectively; a clamping block is arranged at the bottom far away from the first shaft part and near the second shaft part of the connecting bar; the outer edge surface of the clamping block is an arc-shaped surface; the clamping block is clamped in the open slot.

The invention discloses an image zooming and rotating judgment method which comprises the following steps of: initializing an image acquirer, obtaining an initial frame and a current frame, and ensuring positions of each corresponding touch point; setting two touch points in the initial frame to be Ai and Bi, when the touch point which corresponds to the Ai in the current frame is Ac, the touch point which corresponds to the Bi is Bc, remarking a connecting wire between the Ai and the Ac to be 1a, and remarking a connecting wire between the Bi and the Bc to be 1b; forming a circular region Siby taking a connecting wire between the Ai and the Bi as the diameter, remarking the center of the Si as Ci, the semidiameter as R, and judging the position relationship among the Ac, the Bc and the Si; judging to be a rotating operation if only one of the touch points Ac and Bc is positioned in the Si; respectively making the vertical lines of the straight lines 1a and 1b by the centre Ci of a circle if any one of the touch points Ac and the Bc is not positioned in the Si; making a rectangle Ra by taking the Ai and the Ac as a diagonal line; making a rectangle Rb by taking the Bi and the Bc as a diagonal line; and judging whether the Pa and the Pb are positioned in the Ra and the Rb, and judging to be the rotating operation if any one of the points is positioned in the corresponding rectangle otherwise to be a zooming operation. The method is simple and convenient to operate, and high in instantaneity and robustness.

The invention belongs to the technical field of laser processing, and provides a laser welding method for a cambered stamping part. The laser welding method comprises the following steps: adjusting a laser spot, so that the semidiameter of the laser spot is greater than the position dimensional deviation at the edge to be welded of the cambered stamping part; carrying out laser welding by taking the edge to be welded of the cambered stamping part. Due to the fact that the laser spot is adjusted to enable the semidiameter of the laser spot to be greater than the position dimensional deviation at the edge to be welded of the cambered stamping part, a welding track covers the edge to be welded of the cambered stamping part, the edge cannot deviate, a workpiece is prevented from being welted through, and large-scale batch production is realized.

The invention relates to a complete wave nonzero dispersive flat single mode optical fiber, which comprises a fiber core circular shaped center delamination, a first ring-shaped delamination, a second ring-shaped delamination and a uniform outer cladding. The refractive index of the first ring-shaped delamination is lower than that of the uniform outer cladding. The optimum choose of the refractive index section shape of each delamination, relative refractive index difference and semidiameter or width can guarantee that the chromatic dispersion is between 0.1ps/nm-km and 12.0ps/nm-km in a wavelength range of 1300nm to 1625nm. The valid section Aeff is more than or equel to 50 square micrometers under the condition that the wavelength is 1550nm. The performance of the optical fiber can be changed in different intervals in the range according to the different requirements of communicating systems such as DWDM and CWDM.

The invention relates to a cooking machine. A technical matter of the invention is how to provide a cooking machine that is convenient, reliable, simple and economical. The cooking machine comprises a housing, a boiler body and a slice that can be rotated or swung, wherein, the boiler body is long and cylindrate with the upper part cut, two arcuated cover plates are provided on the two sides of the cut respectively, semidiameter of the curved surface of the cover plate is corresponding to that of the boiler body, sliding plates are provided on the upper edge of the arcuated cover plate, and the lower surface of the slice is approximately dovetailed with the inner surface of the inner surface. The cooking machine of the invention has advantages of simple and reliable structure and convenient use; when the machine is controlled by a microcomputer, users can complete the cooking only by dosing according to the requests and selecting a corresponding program; the computer is controlled below 180 DEG, oil smoke can not be generated, thus, uses can be away from oil smock thoroughly; a flusher is added for realizing automatic cleaning, and the cooking machine is suitable for any families and is a must-have in kitchen for a faddish woman who abominate oil smoke.

The invention discloses a lifting device. The lifting device comprises a lifting frame and lifting chains, wherein one ends of the lifting chains are provided with lifting hooks, and the other ends of the lifting chains are connected with the lifting frame through a positioning regulating mechanism; the lifting device is characterized in that the lifting chains and the lifting frame are connected through the positioning regulating mechanism, a connecting position of the lifting chains and the lifting frame is regulated according to the actual requirement through the positioning regulating mechanism, a rotating semidiameter and a rotating center of each lifting chain are regulated according to the actual requirement, and a lifting requirement of a product with the large size is met; the lifting device is capable of meeting lifting requirements of multiple size products, the structure is simple, the manufacture is easy, the regulation is convenient, and the production operation efficiency is effectively improved.