102 results about "Base free" patented technology

A monocular motion stereo-based automatic free parking space detection system is disclosed. The system acquires image sequences with a single rearview fisheye camera, three-dimensionally reconstructs the vehicle rearview by using point correspondences, and recovers metric information from a known camera height to estimate the positions of adjacent vehicles thereby detecting the free parking spaces. By using de-rotation-based feature selection and 3D structure mosaicking the degradation of the 3D structure near the epipole is solved and it is not necessary to use the unreliable odometry due to its accuracy depending on road conditions.

A method and system for non-rigidly registering a fixed to a moving image utilizing a B-Spline based free form deformation (FFD) model is disclosed. The methodology utilizes sparse feature correspondences to estimate an elastic deformation field in a closed form. In a multi-resolution manner, the method is able to recover small to large non-rigid deformations. The resulting deformation field is globally smooth and guarantees one-to-one mapping between the images being registered. The method generally comprises the steps of: detecting feature points on the fixed image and feature points on the moving image; assigning a feature vector to each feature point; calculating the dissimilarity of each pair of feature vectors for feature pairs on the fixed image and the moving image; calculating the correspondence between feature pairs based on the dissimilarity measure; solving for a dense deformation field P using a closed form FFD model; and transforming the moving image and the feature points on the moving image using a current FFD deformation field estimate.

The present invention relates to a crosslinkable polymer composition comprising an unsaturated polyolefin having a total amount of carbon-carbon double bonds / 1000 carbon atoms of at least 0.38, and at least one crosslinking agent being a carbon-carbon initiator that is free of peroxide groups and capable of thermally decomposing into carbon-based free radicals by breaking at least one carbon-carbon single bond, such as 3,4-dimethyl-3,4-diphenylhexane.

A lighting control system using an APP based software technology to operate on line free settings of various operating parameters for a lighting device including setting of manual override timer, setting of detection range of a motion sensor, setting of light-on duration activated by a motion sensor, setting of light intensities for various illumination modes and setting of light color temperature. The technology enables a user to set an operating parameter within a maximum capacity of a designed circuitry on an on line computing basis according to his or her lifestyle by operating an application program designed and loaded in a mobile phone. The technology of the present invention is applicable to a single level security light, a two level security light or a multi-level / life style security light with optional lighting source being a LED load, an incandescent load or any other electrically energize-able light emitting materials.

A monocular motion stereo-based automatic free parking space detection system is disclosed. The system acquires image sequences with a single rearview fisheye camera, three-dimensionally reconstructs the vehicle rearview by using point correspondences, and recovers metric information from a known camera height to estimate the positions of adjacent vehicles thereby detecting the free parking spaces. By using de-rotation-based feature selection and 3D structure mosaicking the degradation of the 3D structure near the epipole is solved and it is not necessary to use the unreliable odometry due to its accuracy depending on road conditions.

A photoresist stripping solution which comprises (a) a salt of hydrofluoric acid with a base free from metal ions, (b) a water-soluble organic solvent, (c) a mercapto group containing corrosion inhibitor, and (d) water, and a method of stripping photoresists with the use of the same are disclosed. In case of using ammonium fluoride as component (a), the photoresist stripping solution may further contain (e) a salt of hydrofluoric acid with a quaternary ammonium hydroxide, such as tetramethylammonium hydroxide, tetrapropylammonium hydroxide, etc., and / or an alkanolamine. The photoresist stripping solution of the present invention has an excellent effect of protecting both Al- and Cu-based metal wiring conductors from corrosion, of efficiently stripping photoresist films and post-ashing residues, and is free from the precipitation of the corrosion inhibitor.

A vehicle headlamp is provided with: a fixed reflector having reflecting surfaces, a respective one of which is made of a parabola-based free curved face; movable reflectors having reflecting surfaces, a respective one of which is made of a parabola-based free curved face; and semiconductor-type light sources, a respective one of which has a light emitting chip shaped like a planar rectangle. When the movable reflectors are positioned in a first location, a light distribution pattern for low beam is obtained on the reflecting surfaces of the fixed reflector. When the movable reflectors are positioned in a second location, light distribution patterns for high beams are obtained on the reflecting surfaces of the fixed reflector and the movable reflector. As a result, the vehicle headlamp enables downsizing, weight reduction, power saving, and cost reduction.

This disclosure relates to a cleaning composition that contains 1) at least one redox agent; 2) at least one first chelating agent, the first chelating agent being a polyaminopolycarboxylic acid; 3) at least one second chelating agent different from the first chelating agent, the second chelating agent containing at least two nitrogen-containing groups; 4) at least one metal corrosion inhibitor, the metal corrosion inhibitor being a substituted or unsubstituted benzotriazole; 5) at least one organic solvent selected from the group consisting of water soluble alcohols, water soluble ketones, water soluble esters, and water soluble ethers; 6) water; and 7) optionally, at least one pH adjusting agent, the pH adjusting agent being a base free of a metal ion. This disclosure also relates to a method of using the above composition for cleaning a semiconductor substrate.

This disclosure relates to a cleaning composition that contains 1) at least one redox agent; 2) at least one first chelating agent, the first chelating agent being a polyaminopolycarboxylic acid; 3) at least one second chelating agent different from the first chelating agent, the second chelating agent containing at least two nitrogen-containing groups; 4) at least one metal corrosion inhibitor, the metal corrosion inhibitor being a substituted or unsubstituted benzotriazole; 5) at least one organic solvent selected from the group consisting of water soluble alcohols, water soluble ketones, water soluble esters, and water soluble ethers; 6) water; and 7) optionally, at least one pH adjusting agent, the pH adjusting agent being a base free of a metal ion. This disclosure also relates to a method of using the above composition for cleaning a semiconductor substrate.

This disclosure relates to a cleaning composition that contains 1) HF; 2) substituted or unsubstituted boric acid; 3) ammonium sulfate; 4) at least one metal corrosion inhibitor; 5) water; and 6) optionally, at least one pH adjusting agent, the pH adjusting agent being a base free of a metal ion. This disclosure also relates to a method of using the above composition for cleaning a semiconductor substrate.

A photoresist stripping solution which comprises (a) a salt of hydrofluoric acid with a base free from metal ions, (b) a water-soluble organic solvent, (c) a mercapto group containing corrosion inhibitor, and (d) water, and a method of stripping photoresists with the use of the same are disclosed. In case of using ammonium fluoride as component (a), the photoresist stripping solution may further contain (e) a salt of hydrof luoric acid with a quaternary ammonium hydroxide, such as tetramethylammonium hydroxide, tetrapropylammonium hydroxide, etc., and / or an alkanolamine. The photoresist stripping solution of the present invention has an excellent effect of protecting both Al- and Cu-based metal wiring conductors from corrosion, of efficiently stripping photoresist films and post-ashing residues, and is free from the precipitation of the corrosion inhibitor.

A method and system for non-rigidly registering a fixed to a moving image utilizing a B-Spline based free form deformation (FFD) model is disclosed. The methodology utilizes sparse feature correspondences to estimate an elastic deformation field in a closed form. In a multi-resolution manner, the method is able to recover small to large non-rigid deformations. The resulting deformation field is globally smooth and guarantees one-to-one mapping between the images being registered. The method generally comprises the steps of: detecting feature points on the fixed image and feature points on the moving image; assigning a feature vector to each feature point; calculating the dissimilarity of each pair of feature vectors for feature pairs on the fixed image and the moving image; calculating the correspondence between feature pairs based on the dissimilarity measure; solving for a dense deformation field P using a closed form FFD model; and transforming the moving image and the feature points on the moving image using a current FFD deformation field estimate.

The invention discloses a VTK-based robot free-form surface workpiece polishing offline programming method. The method comprises the following steps of introducing a three-dimensional model of a workpiece grinding system; determining an intersecting curve of a curved surface to be polished; extracting a position and a posture of a polished planning node; polishing track planning; carrying out robot motion simulation; and generating a robot motion program code. In the invention, a visual development library VTK technology is integrated into a robot offline programming system of VC++ platform development based on Visual Studio. A VTK-based free-form surface polishing path node position and attitude extraction method is provided, and a polishing track can be generated only through mouse picking operation without relying on third-party CAD software. Without a tedious external data calculating and introduction process, man-machine interactivity is good and a required polishing robot programcan be rapidly generated.

The invention belongs to the technical field of organic synthesis and discloses a 1,6-eneyne compound and alcohol compound based free radical cyclization reaction method. The method includes steps: taking an alcohol compound as a starting raw material, subjecting to cyclization reaction with a 1,6-eneyne compound under the action of an oxidant, and after complete reaction, performing aftertreatment to obtain a cyclization product namely a 2-pyrrolidone compound. The method has advantages that raw materials are cheap, easy to acquire, extensive in source, stable and low in toxicity, consumptionof any transition metal catalysts and ligands is avoided, the reaction can be carried out in an air atmosphere and is mild in condition and easy in operation, the product is free of heavy metal residues, and the method has advantages of extensive reaction substrate applicable range, simple, efficient, economical and green and is suitable for industrial production. In addition, an economical, practical, green and environmental-friendly novel idea is provided for alcohol free radical cyclization, and an application range is expanded.

Oscillators and methods of manufacturing and operating an oscillator are provided, the oscillators include a base free layer having a variable magnetization direction, and at least one oscillation unit on the base free layer. The oscillation unit may include a free layer element contacting the base free layer and having a width less than a width of the base free layer, a pinned layer element separated from the free layer element, and a separation layer element between the free layer element and the pinned layer element. A plurality of oscillation units may be arranged on the base free layer.

A cellulosic product such as paper coating composition is disclosed comprising aqueous-based semi-crystalline vinyl acetate-ethylene polymer emulsions, containing crystalline ethylene segments, which are useful for imparting oil, grease, solvent, water, and moisture vapor resistance. The polymer emulsions are prepared via the direct aqueous-based free radical emulsion polymerization of ethylene with various other comonomers. The semi-crystalline aqueous-based polymer emulsions of this invention have a crystalline melting point and a crystalline heat of fusion ranging from 5 to 100 J / g. The semi-crystalline aqueous-based emulsion polymers of this invention can be used directly as a paper or paperboard coating for imparting oil, grease, solvent, water, and moisture vapor resistance. Further, the present invention provides a repulpable paper and paperboard.

A semiconductor resonator has a substrate with a thickness extending between a first end and a second end and a pn-junction along the thickness of the substrate forming a free charge carrier depletion region. In another embodiment, a semiconductor resonator has a substrate with a crystal lattice doped at degenerate levels such that the flow of free charge carriers can be minimized. A method of compensating a temperature coefficient of a semiconductor resonator by creating a pn-junction based free charge carrier depletion region within a thickness of a substrate of the resonator is also disclosed.

The invention relates to a radar target detection-based free slide window type constant false alarm rate (CFAR) control method. The method includes the following steps that: a unit Xi in an input signal Xt (t=1...m) sequence is selected as a detected unit, and the detected unit is adopted as a center, the left side and the right side of the detected unit are respectively provided with a protective unit B1 and a protective unit B2, and then, n units at the left side of the B1 are adopted as an initial free reference window body, and the length of the window body is fixed as L=n; the window body slides from left to right one unit by one unit until reaching n units at the right side of the protective unit B2, with the length of the window body being constant, and altogether, the number of times of slide is n, and n slide windows are obtained; comparative statistics is preformed on average values of the slide windows, so as to determine the final amplitude value of the free slide windows; the final amplitude value of the slide windows is multiplied by a nominal factor T, so that a judgment threshold value S can be obtained; and finally, the detected unit Xi is compared with the threshold value S, if Xi>S, it indicates that a target exists, otherwise, it indicates that no target exists. With the radar target detection-based free slide window type CFAR control method of the invention adopted, the constant false alarm rate of target detection can be maintained, and the detection probability of a target shielding effect and a clutter edge effect can be improved.

A vehicle headlamp is provided with: a fixed reflector having reflecting surfaces made of parabola-based free curved faces; movable reflectors having reflecting surfaces made of parabola-based free curved faces; and semiconductor-type light sources having light emitting chips shaped like a planar rectangle. When the movable reflectors are positioned in a first location, a light distribution pattern for low beam is obtained. When the movable reflectors are positioned in a second location, light distribution patterns for high beams are obtained. When the movable reflectors are positioned in a third location, light distribution patterns for daytime running light are obtained. As a result, the vehicle headlamp can achieve downsizing, weight reduction, power saving, and cost reduction.

Oscillators and methods of manufacturing and operating an oscillator are provided, the oscillators include a base free layer having a variable magnetization direction, and at least one oscillation unit on the base free layer. The oscillation unit may include a free layer element contacting the base free layer and having a width less than a width of the base free layer, a pinned layer element separated from the free layer element, and a separation layer element between the free layer element and the pinned layer element. A plurality of oscillation units may be arranged on the base free layer.

The invention provides a method for quickly detecting concentration of a polyacrylonitrile-based free radical coagulation bath, comprising the following steps: firstly obtaining a standard curve equation y is equal to ax plus b on the relationship of concentration and density of dimethyl sulfoxide; validating the standard deviation and correlation of the standard curve equation; if the standard deviation is not more than 1 and simultaneously the correlation is more than 0.9950, the linear equation can be used directly; the density of the coagulation bath can be measured by a portable densimeter; the measured density is converted into concentration by the standard linear equation, thus obtaining the concentration of coagulation bath dimethyl sulfoxide. The method has the advantages of quickly detecting the coagulation bath dimethyl sulfoxide during the polyacrylonitrile-based free radical spinning process, and improving the exactness and timeliness on the concentration control of the coagulation bath during the spinning process.

A preparation method of a porous alpha-alumina membrane comprises the following steps: carrying out an annealing and electric polishing pretreatment on a high purity aluminum foil; taking the processed aluminum foil as the positive electrode, and graphite as the negative electrode, then carrying out two-step positive electrode oxidation in a mixed solution of phosphoric acid and aluminum oxalate to obtain an aluminum-base-containing porous anodic alumina membrane; subjecting the obtained aluminum-base-containing porous anodic aluminum membrane to a pore enlarging treatment; then subjecting the pore-enlarged aluminum-base-containing porous anodic alumina membrane to a water boiling treatment or a hydrothermal treatment; then removing the aluminum base from the aluminum-base-containing porous anodic alumina membrane, which has been treated by water boiling or a hydrothermal treatment; using a sodium citrate solution to remove the baffle layer and alumina hydrate on the external layer of the porous alumina membrane from the aluminum-base-free porous anodic alumina membrane so as to form a periodical hexahedral densely-arranged alumina through hole structure finally; and sintering the prepared alumina membrane with a periodical hexahedral densely-arranged alumina through hole structure in a muffle furnace at a high temperature so as to obtain porous alpha-alumina membrane.

A cellulosic product such as paper coating composition is disclosed comprising aqueous-based semi-crystalline vinyl acetate-ethylene polymer emulsions, containing crystalline ethylene segments, which are useful for imparting oil, grease, solvent, water, and moisture vapor resistance. The polymer emulsions are prepared via the direct aqueous-based free radical emulsion polymerization of ethylene with various other comonomers. The semi-crystalline aqueous-based polymer emulsions of this invention have a crystalline melting point and a crystalline heat of fusion ranging from 5 to 100 J / g. The semi-crystalline aqueous-based emulsion polymers of this invention can be used directly as a paper or paperboard coating for imparting oil, grease, solvent, water, and moisture vapor resistance. Further, the present invention provides a repulpable paper and paperboard.

A determination of the free water level for a hydrocarbon-bearing reservoir is provided that accounts for the different classified rock types (that is, facies) in the reservoir. The free water level for each unique combination of facies is determined using a least squares minimization between a reference bulk volume of oil (Bvolog) determined from well logs a bulk volume of oil (Bvocalc) calculated from a saturation height function for each of the facies present in the reservoir. Systems and process for determining the free water level are provided.

A fluid dynamic bearing device is disclosed in which, in the materials used for the sleeve of the fluid dynamic bearing device, particles of free-cutting elements and free-cutting alloys added to iron-based free-cutting steel, ferrite-based free-cutting stainless steel, and so on are reduced in size to about 0.1 to 0.5 μm. The result is smaller crystals of free-cutting alloy, and particularly manganese sulfide, on the inner peripheral face of the bearing hole of the sleeve made of free-cutting steel, which makes the inner peripheral face of the sleeve smoother. Also, the carbon content of free-cutting steel is kept to 0.1% or less, which lowers the hardness of the material and extends the service life of the tool used to cut the dynamic pressure generation grooves.

The invention discloses an OCS-based implementation method of a free phone service. The method comprises a procedure of activating the called service by a USSD way and the following steps: A. a terminal of a calling number sends a USSD request message to an SCP, wherein, the request message comprises a called number; B. the SCP calls a called number based on the request message, and calls the calling number, and connects the called number and the calling number; C. the calling number communicates with the called number; and D. when the communication ends, service cost is deducted from an account of the called number according to charging setting. The invention further discloses an OCS-based free phone service system. The method and the system are characterized by sending a USSD request message to activate the free phone service, calling the called number and the calling number respectively, and connecting the called number and the calling number to implement communication between the calling number and the called number, and the communication service is finished by the connection of the two calling procedures, which implements the low-cost free phone service.

Disclosed is a photoresist stripping solution comprising: (a) a salt of hydrofluoric acid with a base free from metallic ions; and (b) a water-soluble organic solvent, wherein the content of the component (a) is 0.001 to 0.1 mass % based on the total mass of the photoresist stripping solution. Also disclosed is a method of treating a substrate, which comprises: forming a photoresist film on a substrate; subjecting it to light exposure and then to development; etching thereof with a photoresist pattern as a mask pattern; ashing the mask; and bringing the photoresist stripping solution into contact with the substrate.

The invention relates to the technical fields of building structure experimental device and method, and discloses a quasi-static test device for a base-free reinforced concrete column, wherein the quasi-static test device includes an experimental reinforced concrete column and a rigid connection fixer; the lower end of the reinforced concrete column is not provided with a base and forms a rigid connection part; the rigid connection fixer is fixedly connected onto a ground beam and includes a jack mechanism; the jack mechanism transversely presses against the rigid connection part, so that thelower end of the reinforced concrete column forms a rigid connection state. The structure arrangement makes a reinforced concrete square column test specimen convenient to pour, the stages of column base template preparation, steel reinforcement cage preparation, concrete pouring, maintenance and the like are omitted, and the amount of reinforcing steel bars and the concrete material are saved. Atthe same time, because a jack is used for positioning the reinforced concrete, the device can be used repeatedly and can be adaptive to column components with different sizes, and the cost of experiments is greatly saved.