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50 results about "Optimized geometry" patented technology

The objective of a geometry optimization is to find the point at which the energy is at a minimum because this is where the molecule is most stable and most likely to be found in nature. One way to observe the effect of different geometries on energy level is to calculate a potential energy surface (PES).

Methodology and method and apparatus for signaling with capacity optimized constellations

Communication systems are described that use geometrically shaped constellations that have increased capacity compared to conventional constellations operating within a similar SNR band. In several embodiments, the geometrically shaped is optimized based upon a capacity measure such as parallel decoding capacity or joint capacity. In many embodiments, a capacity optimized geometrically shaped constellation can be used to replace a conventional constellation as part of a firmware upgrade to transmitters and receivers within a communication system. In a number of embodiments, the geometrically shaped constellation is optimized for an Additive White Gaussian Noise channel or a fading channel. In numerous embodiments, the communication uses adaptive rate encoding and the location of points within the geometrically shaped constellation changes as the code rate changes. One embodiment of the invention includes a transmitter configured to transmit signals to a receiver via a communication channel, wherein the transmitter, includes a coder configured to receive user bits and output encoded bits at an expanded output encoded bit rate, a mapper configured to map encoded bits to symbols in a symbol constellation, a modulator configured to generate a signal for transmission via the communication channel using symbols generated by the mapper. In addition, the receiver includes a demodulator configured to demodulate the received signal via the communication channel, a demapper configured to estimate likelihoods from the demodulated signal, a decoder that is configured to estimate decoded bits from the likelihoods generated by the demapper. Furthermore, the symbol constellation is a capacity optimized geometrically spaced symbol constellation that provides a given capacity at a reduced signal-to-noise ratio compared to a signal constellation that maximizes dmin.
Owner:CONSTELLATION DESIGNS LLC

Flow Conditioner and Method for Optimization

A flow conditioner for a circular pipe having an axis. The flow conditioner includes a plate having a face to be disposed in the circular pipe with the face of the plate perpendicular to the axis of the pipe. The plate has a central circular passage area through which fluid flows surrounded by two or more concentric arrays of segmented annular passages for fluid flow defined by separating and subdividing ligaments, with at least one subdividing ligament having a width different than a width of a second subdividing ligament. Alternatively, or in addition, there is at least one array of annular passages having a radial width different than a radial width of a second array of annular passages and at least one subdividing ligament having a width different than a width of a second subdividing ligament. A method of producing an optimized geometry of flow conditioner for a circular pipe having an axis.
Owner:CAMERON FLOW CONTROL TECH UK +1

Geometric parameterization modeling method for optimizing variable-complexity shape

The invention discloses a geometric parameterization modeling method for optimizing a variable-complexity shape, which is a geometric parameterization modeling method for optimizing the shape of a complex body, aims to solve the problem that the prior geometric parameterization modeling method has difficult interdisciplinary coupling modeling and high running cost, and comprises the following steps: constructing a control mesh V<con> containing a body to be optimized in three-dimensional space, wherein the control mesh V<con> consists of triangular mesh units, the node of the control mesh is expressed as P[x], wherein x is a two-dimensional parameter of the V<con>; setting v(interior) as a point on the body to be optimized, and projecting all the nodes p[x] of the control mesh to a unit ball S(Vinterior) taking the vinterior as the ball center; and defining a function f[x] on the p[x], wherein the weighting w[x, v(interior)] function of the f[x] is designed as 1 / |p[x]-v(interior)| to integrate w[x, v(interior)]f[x] on a unit ball S(interior) so as to obtain a formula with an affine invariant property, and the formula is valued as f[x]=p[x] to obtain a geometric parameterization model of an optimized variable-complexity shape.
Owner:AERODYNAMICS NAT KEY LAB

Chemical Analysis Using Dynamic Viscometry

InactiveUS20080026369A1Stable and reproducible measurementWithout impairing high-frequency stabilityBioreactor/fermenter combinationsBiological substance pretreatmentsChemical reactionResonator
The invention relates to a method for determining the reactive state of a chemical reaction process in a reaction mixture (110), in particular an amplification reaction for nucleic acids. Said method comprises a viscosity determination, which preferably uses a dynamic viscometer (1). The invention also relates to an improved dynamic viscometer (1) for carrying out said method. Said viscometer is characterised by an appropriate choice of material for the resonator (101) and optimised geometric ratios.
Owner:DUAL JURG +2

MEMS device with optimized geometry for reducing the offset due to the radiometric effect

A MEMS device with teeter-totter structure includes a mobile mass having an area in a plane and a thickness in a direction perpendicular to the plane. The mobile mass is tiltable about a rotation axis extending parallel to the plane and formed by a first and by a second half-masses arranged on opposite sides of the rotation axis. The first and the second masses have a first and a second centroid, respectively, arranged at a first and a second distance b1, b2, respectively, from the rotation axis. First through openings are formed in the first half-mass and, together with the first half-mass, have a first total perimeter p1 in the plane. Second through openings are formed in the second half-mass and, together with the second half-mass, have a second total perimeter p2 in the plane, where the first and the second perimeters p1, p2 satisfy the equation: p1×b1=p2×b2.
Owner:STMICROELECTRONICS SRL

Urban two-dimensional seismic obstacle-crossing observation system optimized geometry-variable design method

The present invention discloses an urban two-dimensional seismic obstacle-crossing observation system optimized geometry-variable design method and belongs to the urban geophysical exploration technical field. The invention aims to solve the problem that the influence of an obstacle section on a normal observation system cannot be quickly and efficiently determined in the prior art can be solved. According to the method, received permutations in a single-shot conventional seismic observation system to be processed are divided into at least one effective permutation segment according to positional relationships between the position of each detection point and the range of each of all obstacle segments; and the comprehensive planar graph of the seismic observation system is drawn according to the positions of shot points and the effective permutation segments, and the number of times of coverage of a common midpoint is put into statistics according to the planar graph of the seismic observation system, wherein the number of times of coverage of the common midpoint is the number of times of repeated observation which is formed by identical reflection points on an underground interface which are located between the shot points and the detection points.
Owner:GEOPHYSICAL EXPLORATION CENT CHINA EARTHQUAKE ADMINISTATION

Tool manufacturing method

A method for manufacturing hand tools, such as wrenches. The method generally includes the steps of providing a flat stock, cutting the flat stock into the desired two-dimension blank using a laser, and three-dimensionally machining the laser-cut 2D blank into the desired three-dimensional workpiece. The tool may undergo a heating treatment process and a surface treatment process. In the context of a wrench, the blank may be laser cut with a laser beam oriented to cut generally perpendicularly to the plane of the flat stock. After laser cutting, the handle and interface region between the handle and jaw(s) are machined to provide the desired three-dimensional shape. For example, the three-dimensional shape may be selected to provide a comfortable grip even when applying a high level of force. The wrench jaw may have an optimized geometry calculated so that there is no excess material or “over-designed” regions of the jaw. The wrench jaw has internal corners with optimized radii.
Owner:TEKTON

Chained Iterative Application of Computer Aided Generative Design for Optimized Geometries

Generative design uses artificial intelligence to automatically create optimal designs from a set of system design requirements. A generative design system receives user-supplied design requirements and generates an optimized geometry by chaining iterative applications of computer aided generative design. In one aspect, the system uses the output of a first generative design process as a requirement of or as part of the design requirements for a second generative process, with or without intervening user input. In another aspect, the system enables designers to incrementally or iteratively specify and edit design requirements such that each resulting geometry is derived from a previously or most recently generated optimized geometry and optionally updated design requirements. The system, by using or reusing outputs and / or data from previous design iterations can produce subsequent designs more efficiently and quickly.
Owner:PARAMETRIC TECH CORP

Panoramic unmanned aerial vehicle image splicing method

The invention discloses a panoramic unmanned aerial vehicle image splicing method. The method comprises the steps of image input, image feature extraction, image feature matching, image matching, image splicing and spliced image output. The image input is an image shot by a plurality of unmanned aerial vehicles at the same time, and the image feature extraction utilizes an improved geometric algebra-scale invariant feature conversion algorithm an adaptive threshold algorithm is adopted for image feature matching, and a homography estimation algorithm which is robust through random sampling consistency is adopted for image matching. According to the method, an optimized geometric algebra scale invariant feature conversion algorithm is adopted to realize rapid feature extraction and featurematching; The limitation problems of large calculation amount and high splicing time cost are solved by applying a self-adaptive threshold method through large feature point extraction and splicing work; A random sample consistency method is adopted to estimate image transformation parameters, and a solution with the best consistency with data is determined. According to the image splicing method,the alignment speed of the images is greatly increased, and a satisfactory image splicing result is generated.
Owner:STATE GRID HENAN ELECTRIC POWER COMPANY ZHENGZHOU POWER SUPPLY +2
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